CN105209574A - Liquid crystal composition and liquid crystal display element using same - Google Patents

Abstract

The present invention provides a compound represented by the following formula (i) and the following general formula (ii) (in the formula, R ^iia represents an alkenyl group with 2 to 5 carbon atoms, and R ^iib represents an alkenyl group with 1 to 5 carbon atoms A liquid crystal composition of a compound represented by an alkyl group or an alkoxy group having 1 to 4 carbon atoms), and a liquid crystal display device using the same.

Description

Liquid crystal composition and liquid crystal display element using same

technical field

The present invention relates to a nematic liquid crystal composition having a positive dielectric constant anisotropy (Δε) useful as a liquid crystal display material, and a liquid crystal display element using the same.

Background technique

Liquid crystal display devices are used in various measurement equipment such as clocks and calculators, automotive dashboards, word processors, electronic notebooks, printers, computers, televisions, clocks, advertising display boards, etc. Representative liquid crystal display methods include TN (twisted nematic) type, STN (super twisted nematic) type, vertical alignment type using TFT (thin film transistor), and IPS (in-plane switching) type. The liquid crystal composition used in these liquid crystal display elements is required to be stable against external stimuli such as moisture, air, heat, and light, and to display a liquid crystal phase in as wide a temperature range as possible around room temperature, and to have low viscosity and low driving voltage. . In addition, the liquid crystal composition is composed of several to several tens of compounds in order to obtain optimum values of dielectric constant anisotropy (Δε), refractive index anisotropy (Δn), and the like for each display element.

A vertical alignment (VA) type display uses a liquid crystal composition with a negative Δε, and a horizontal alignment type display such as a TN type, an STN type, or an IPS (in-plane switching) type uses a liquid crystal composition with a positive Δε. In addition, it has also been reported that a liquid crystal composition with a positive Δε is vertically aligned when no voltage is applied, and a driving method for displaying is performed by applying a lateral electric field, so that the necessity of a liquid crystal composition with a positive Δε is further increased. On the other hand, low-voltage drive, high-speed response, and wide operating temperature range are required in all drive methods. That is, Δε is required to be positive and have a large absolute value, a low viscosity (η), and a high nematic-isotropic liquid phase transition temperature (Tni). In addition, in order to set Δn×d, which is the product of Δn and the cell spacing (d), within a predetermined value, it is necessary to set Δn of the liquid crystal composition within an appropriate range according to the cell spacing. In addition, since high-speed responsiveness is important when a liquid crystal display element is applied to a television or the like, a liquid crystal composition having a small rotational viscosity (γ1) is required.

As the structure of the liquid crystal composition aiming at high-speed responsiveness, for example, compounds represented by formulas (A-1) and (A-2) which are liquid crystal compounds where Δε is positive, and compounds represented by formulas (A-2) where Δε is neutral have been disclosed. A liquid crystal composition used in combination with (B) of the liquid crystal compound. As the characteristics of these liquid crystal compositions, liquid crystal compounds with a positive Δε have a -CF ₂ O- structure and liquid crystal compounds with a neutral Δε have an alkenyl group, and are widely known in the field of liquid crystal compositions (Patent Documents 1 to 4).

[chemical 1]

On the other hand, the use of liquid crystal display elements has been expanded, and the method of use and the method of production thereof have also been greatly changed. In order to cope with these changes, it is required to optimize properties other than conventionally known basic physical property values. That is, VA type, IPS type, etc. have been widely used as liquid crystal display elements using liquid crystal compositions, and their sizes have been used to realize ultra-large-sized display elements of 50 inches or more. Along with the increase in the size of the substrate, the method of injecting the liquid crystal composition onto the substrate has also changed, from the conventional vacuum injection method to the ODF (One Drop Fill) method as the mainstream injection method. However, the problem that the drop marks when dropping the liquid crystal composition onto the substrate will lead to a decrease in display quality has surfaced.

In addition, in the process of manufacturing a liquid crystal display element by the ODF method, it is necessary to drop an optimum amount according to the size of a liquid crystal display element. When the deviation of the drop amount is very different from the optimum value, the previously designed refractive index of the liquid crystal display element and the balance of the driving electric field will collapse, and display defects such as unevenness and poor contrast will occur. In particular, for the small liquid crystal display elements that are often used in popular smartphones recently, it is difficult to control the deviation from the optimum value within a certain range because the optimum amount of liquid crystal dripping is small. Therefore, in order to keep the manufacturing yield of liquid crystal display elements at a high level, the liquid crystal composition is required to be less affected by the rapid pressure change and impact in the dropping device when the liquid crystal is dropped, and to be stable over a long period of time. dripping.

Thus, for liquid crystal compositions used in active-matrix drive liquid crystal display elements driven by TFT elements, etc., it is required to pursue the high-speed response performance and high resistivity required for liquid crystal display elements while considering the manufacturing method of liquid crystal display elements. value, high voltage retention, or improved stability against external stimuli such as light and heat.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2008-037918

Patent Document 2: Japanese Patent Laid-Open No. 2008-038018

Patent Document 3: Japanese Patent Laid-Open No. 2010-275390

Patent Document 4: Japanese Patent Laid-Open No. 2011-052120

Contents of the invention

The problem to be solved by the invention

The problem to be solved by the present invention is to provide a liquid crystal composition, which is a liquid crystal composition in which Δε is positive, has a liquid crystal phase in a wide temperature range, has low viscosity, good solubility at low temperature, high resistivity and voltage retention rate, It is stable to heat and light; and by using the liquid crystal composition, it is possible to provide a liquid crystal display element with excellent display quality by suppressing display defects caused by burning screens, drop marks, etc.; and providing a liquid crystal display element using the liquid crystal composition A liquid crystal display element of a liquid crystal composition.

means of solving problems

The present invention includes the following aspects.

(1) A liquid crystal composition characterized by containing a compound represented by the following formula (i) and at least one compound represented by the following general formula (ii).

[Chem 2]

In the aforementioned general formula (ii), R ^iia represents an alkenyl group having 2 to 5 carbon atoms, and R ^iib represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.

(2) The liquid crystal composition as described in said (1) further containing at least 1 sort(s) of compound represented by following general formula (L).

[Chem 3]

In the aforementioned general formula (L),

R ^L1 and R ^L2 each independently represent an alkyl group having 1 to 8 carbon atoms, and one or at least two non-adjacent -CH ₂ - in the alkyl group may each independently be represented by -CH=CH-, -C ≡C-, -O-, -CO-, -COO- or -OCO-substituted,

OL means 0, 1, 2 or 3,

B ^L1 , B ^L2 and B ^L3 each independently represent a group selected from the group consisting of:

(a) 1,4-cyclohexylene (1 -CH ₂ - or at least 2 non-adjacent -CH ₂ - present in this group may be substituted with -O-), and

(b) 1,4-phenylene (1 -CH= or at least 2 non-adjacent -CH= present in this group may be replaced by -N=),

The above-mentioned group (a) and group (b) can be independently substituted by cyano, fluorine atom or chlorine atom,

L ^L1 and L ^L2 each independently represent a single bond, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -OCF ₂ - , -CF ₂ O-, -CH=NN=CH-, -CH=CH-, -CF=CF- or -C≡C-,

When OL is 2 or 3 and there are multiple L ^L2 , they may be the same or different; when OL is 2 or 3 and B ^L3 is multiple, they may be the same or different, but the aforementioned general formula (ii ) except for compounds represented by .

(3) The liquid crystal composition according to the above item (1) or (2), which further contains at least one compound represented by the following general formula (M).

[chemical 4]

In the aforementioned general formula (M),

R ^M1 represents an alkyl group having 1 to 8 carbon atoms, and one or at least two non-adjacent -CH ₂ - in the alkyl group may be each independently represented by -CH=CH-, -C≡C-, -O -, -CO-, -COO- or -OCO- substituted,

PM means 0, 1, 2, 3 or 4,

C ^M1 and C ^M2 each independently represent a group selected from the group consisting of the following groups:

(d) 1,4-cyclohexylene (1 -CH ₂ - or at least 2 non-adjacent -CH ₂ - present in this group may be substituted with -O- or -S-), and

(e) 1,4-phenylene (1 -CH= or at least 2 non-adjacent -CH= present in this group may be replaced by -N=),

The above-mentioned group (d) and group (e) can be independently substituted by cyano, fluorine atom or chlorine atom,

K ^M1 and K ^M2 each independently represent a single bond, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -, -CF ₂ O-, - COO-, -OCO- or -C≡C-,

When PM is 2, 3 or 4 and there are multiple K ^M1 , they may be the same or different; when PM is 2, 3 or 4 and there are multiple C ^M2 , they may be the same or different;

X ^M1 and X ^M3 each independently represent a hydrogen atom, a chlorine atom or a fluorine atom,

X ^M2 represents a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a fluoromethoxy group, a difluoromethoxy group, a trifluoromethoxy group or a 2,2,2-trifluoroethyl group, but the aforementioned Compounds represented by formula (i) are excluded.

(4) The liquid crystal composition according to the above item (3), which contains at least one compound represented by the following general formula (XI) as at least one compound represented by the above general formula (M).

[chemical 5]

In the aforementioned general formula (XI), X ¹¹¹ to X ¹¹⁷ each independently represent a fluorine atom or a hydrogen atom, at least one of X ¹¹¹ to X ¹¹⁷ represents a fluorine atom, and R ¹¹⁰ represents an alkyl group having 1 to 5 carbon atoms, a carbon Alkenyl group having 2 to 5 atoms or alkoxy group having 1 to 4 carbon atoms, Y ¹¹ represents a fluorine atom or -OCF ₃ .

(5) The liquid crystal composition as described in the aforementioned item (4), as at least one compound represented by the aforementioned general formula (XI), containing at least 4% by mass of the following formula ( 45.4) the compound represented.

[chemical 6]

(6) The liquid crystal composition as described in any one of the aforementioned items (3) to (5), which contains at least one compound represented by the following general formula (IX-1) as the compound represented by the aforementioned general formula (M) of at least one compound.

[chemical 7]

In the aforementioned general formula (IX-1), R represents an alkyl group with 1 to ⁵ carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and ^X represents a hydrogen atom or A fluorine atom, Y ⁹ represents a fluorine atom or -OCF ₃ .

(7) The liquid crystal composition as described in item (6) above, as at least one compound represented by the aforementioned general formula (IX-1), containing at least 13% by mass of the following A compound represented by formula (28.5).

[chemical 8]

(8) The liquid crystal composition as described in any one of the above items (3) to (7), which contains at least one compound represented by the following general formula (IX-2) as the compound represented by the above general formula (M) of at least one compound.

[chemical 9]

In the aforementioned general formula (IX-2), R ⁹ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and X ⁹¹ and X ⁹² are each independently represents a hydrogen atom or a fluorine atom, and Y ⁹ represents a fluorine atom, a chlorine atom, or -OCF ₃ .

(9) The liquid crystal composition as described in the above item (8), which contains at least one compound represented by the following general formula (IX-2-2) as at least one compound represented by the above general formula (IX-2) compound.

[chemical 10]

In the aforementioned general formula (IX-2-2), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

(10) The liquid crystal composition as described in item (9) above, as at least one compound represented by the aforementioned general formula (IX-2-2), containing at least 11% by mass of A compound represented by the following formula (31.2).

[chemical 11]

(11) The liquid crystal composition as described in the aforementioned item (9) or (10), as at least one compound represented by the aforementioned general formula (IX-2-2), containing 0.5 The compound represented by the following formula (31.4) in mass % or more and less than 3 mass %.

[chemical 12]

(12) The liquid crystal composition as described in any one of the aforementioned items (8) to (11), which contains at least one compound represented by the following general formula (IX-2-5) as the aforementioned general formula (IX- 2) At least one compound represented.

[chemical 13]

In the aforementioned general formula (IX-2-5), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

(13) The liquid crystal composition as described in the aforementioned item (12), which contains, as at least one compound represented by the aforementioned general formula (IX-2-5), 0.5% by mass or more with respect to the total mass of the liquid crystal composition and The compound represented by the formula (34.5) is less than 10% by mass.

[chemical 14]

(14) The liquid crystal composition as described in the aforementioned item (12) or (13), as at least one compound represented by the aforementioned general formula (IX-2-5), containing at least 8% by mass of the compound represented by the formula (34.1).

[chemical 15]

(15) The liquid crystal composition as described in any one of the aforementioned items (2) to (14), which contains at least one compound represented by the general formula (V-1) as at least one compound represented by the aforementioned general formula (L). 1 compound.

[chemical 16]

In the aforementioned general formula (V-1), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, ^X51 and ^X52 each independently represent a fluorine atom or a hydrogen atom.

(16) The liquid crystal composition as described in the aforementioned item (15), wherein any one of the aforementioned X ⁵¹ and X ⁵² is a hydrogen atom, and the other is a fluorine atom.

(17) The liquid crystal composition as described in the aforementioned item (16), which contains at least one of the compound represented by the formula (21.1) and the compound represented by the formula (22.1) as the compound represented by the aforementioned general formula (V-1). At least 1 compound.

[chemical 17]

(18) The liquid crystal composition according to any one of the aforementioned items (3) to (17), which contains at least one compound represented by the general formula (X-2) as at least one compound represented by the aforementioned general formula (M). 1 compound.

[chemical 18]

In the aforementioned general formula (X-2), X ¹⁰² and X ¹⁰³ each independently represent a fluorine atom or a hydrogen atom, Y ¹⁰ represents a fluorine atom, a chlorine atom, or -OCF ₃ , and R ¹⁰ represents an alkane having 1 to 5 carbon atoms. group, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

(19) The liquid crystal composition as described in the aforementioned item (18), which contains at least one compound represented by the following general formula (X-2-1) or (X-2-2) as the aforementioned general formula (X- 2) At least one compound represented.

[chemical 19]

In the aforementioned general formulas (X-2-1) and (X-2-2), R ¹⁰ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkenyl group with 1 to 4 carbon atoms. alkoxy.

(20) The liquid crystal composition as described in said (19) which contains the compound represented by following formula (39.2) and/or the compound represented by following formula (40.2).

[chemical 20]

(21) The liquid crystal composition according to any one of the aforementioned items (3) to (20), which contains at least one compound represented by the general formula (X-1) as at least one compound represented by the aforementioned general formula (M). 1 compound.

[chem 21]

In the aforementioned general formula (X-1), X ¹⁰¹ to X ¹⁰³ each independently represent a fluorine atom or a hydrogen atom, and R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or a carbon atom Alkoxy groups with numbers 1 to 4.

(22) The liquid crystal composition as described in the aforementioned item (21), which contains at least one compound represented by the following general formula (X-1-2) or (X-1-3) as the aforementioned general formula (X-1-3) - at least one compound represented by 1).

[chem 22]

In the aforementioned general formulas (X-1-2) and (X-1-3), R ¹⁰ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkenyl group with 1 to 4 carbon atoms. alkoxy.

(23) The liquid crystal composition as described in said (22) which contains the compound represented by following formula (37.2) and/or the compound represented by following formula (38.2).

[chem 23]

(24) The liquid crystal composition according to any one of the above items (2) to (23), which contains at least one compound represented by the general formula (IV) as at least one compound represented by the above general formula (L) compound.

[chem 24]

In the aforementioned formula, R ⁴¹ and R ⁴² each independently represent an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and X ⁴¹ and X ⁴² each independently represent a hydrogen atom or a fluorine atom.

(25) The liquid crystal composition as described in the aforementioned item (24), wherein any one of the aforementioned X ⁴¹ and X ⁴² represents a hydrogen atom, and the other represents a fluorine atom.

(26) The liquid crystal composition as described in the aforementioned item (25), which contains a compound represented by the following formula (19.1) and/or a compound represented by the following formula (19.2) as the compound represented by the aforementioned general formula (IV). At least 1 compound.

[chem 25]

(27) The liquid crystal composition according to any one of the above items (3) to (26), which contains at least one compound represented by the following general formula (XIV-2) as the compound represented by the above general formula (M) of at least one compound.

[chem 26]

In the aforementioned general formula (XIV-2), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and each of X ¹⁴¹ to X ¹⁴⁴ is independently represent a fluorine atom or a hydrogen atom, and Y ¹⁴ represents a fluorine atom, a chlorine atom or -OCF ₃ .

(28) The liquid crystal composition as described in the above item (27), which contains at least one compound represented by the following general formula (XIV-2-2) as at least one compound represented by the above general formula (XIV-2) compound.

[chem 27]

In the aforementioned general formula (XIV-2-2), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

(29) The liquid crystal composition as described in the above item (28), which contains, as at least one compound represented by the aforementioned general formula (XIV-2-2), 0.5% by mass or more with respect to the total mass of the liquid crystal composition and The compound represented by the following formula (54.1) is less than 4 mass %.

[chem 28]

(30) The liquid crystal composition according to any one of the aforementioned items (27) to (29), which contains at least one compound represented by the following general formula (XIV-2-4) as the aforementioned general formula (XIV- 2) At least one compound represented.

[chem 29]

In the aforementioned general formula (XIV-2-4), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

(31) The liquid crystal composition as described in the aforementioned item (30), as at least one compound represented by the aforementioned general formula (XIV-2-4), containing at least 5% by mass of A compound represented by the following formula (56.1).

[chem 30]

(32) The liquid crystal composition as described in any one of the above items (2) to (31), which contains at least one compound represented by the following general formula (I-5) as the compound represented by the above general formula (L) of at least one compound.

[chem 31]

In the aforementioned general formula (I-5), R ¹¹ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and R ¹² represents the number of carbon atoms An alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

(33) The liquid crystal composition as described in the above item (32), which contains a compound represented by the following formula (6.6) as at least one compound represented by the above general formula (I-5).

[chem 32]

(34) The liquid crystal composition as described in any one of the above items (2) to (33), which contains at least one compound represented by the following general formula (I-7) as the compound represented by the above general formula (L) of at least one compound.

[chem 33]

In the aforementioned general formula (I-7), R ¹¹ and R ¹² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, X ¹² represents a fluorine atom or a chlorine atom.

(35) The liquid crystal composition as described in the above item (34), which contains a compound represented by the following formula (8.1) as at least one compound represented by the above general formula (I-7).

[chem 34]

(36) The liquid crystal composition according to any one of the above items (1) to (35), further comprising a compound represented by the following formula (2.5).

[chem 35]

(37) The liquid crystal composition according to any one of the above items (1) to (36), which further contains a compound represented by the following general formula (Q-a).

[chem 36]

In the aforementioned general formula (Qa), R ^Q1 represents a linear or branched alkyl group having 1 to 10 carbon atoms.

(38) The liquid crystal composition as described in the above item (37), which contains a compound represented by the following formula (Q-a-1) as the compound represented by the above general formula (Q-a).

[chem 37]

(39) The liquid crystal composition according to any one of the above items (1) to (38), which further contains a compound represented by the following general formula (Q-c).

[chem 38]

In the aforementioned general formula (Qc), R ^Q3 represents a straight-chain alkyl group, branched-chain alkyl group, straight-chain alkoxy group or branched-chain alkoxy group having 1 to 8 carbon atoms.

(40) The liquid crystal composition as described in the above item (39), which contains a compound represented by the following formula (Q-c-1) as the compound represented by the above general formula (Q-c).

[chem 39]

(41) The liquid crystal composition according to any one of the above items (1) to (40), which further contains at least one compound represented by the following general formula (XX).

[chemical 40]

In the aforementioned general formula (XX), X ²⁰¹ and X ²⁰² each independently represent a hydrogen atom or a methyl group,

Sp ²⁰¹ and Sp ²⁰² each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms, or -O-(CH ₂ ) _s - (wherein, s represents an integer of 2 to 7, and the oxygen atom is bonded to the aromatic ring Knot),

Z ²⁰¹ represents -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -CF ₂ O-, -OCF ₂ -, -CH ₂ CH ₂ -, -CF ₂ CF ₂ -, -CH= CH-COO-, -CH=CH-OCO-, -COO-CH=CH-, -OCO-CH=CH-, -COO-CH ₂ CH ₂ -, -OCO-CH ₂ CH ₂ -, -CH ₂ CH ₂ -COO-, -CH ₂ CH ₂ -OCO-, -COO-CH ₂ -, -OCO-CH ₂ -, -CH ₂ -COO-, -CH ₂ -OCO-, -CY ¹ =CY ² - (wherein, Y ¹ and Y ² each independently represent a fluorine atom or a hydrogen atom), -C≡C-, or a single bond,

M ²⁰¹ represents 1,4-phenylene, trans-1,4-cyclohexylene or a single bond,

Arbitrary hydrogen atoms of all the 1,4-phenylene groups in the formula may be substituted with fluorine atoms.

(42) The liquid crystal composition as described in the above item (41), which contains a compound represented by the following formula (XX-2) as at least one compound represented by the above general formula (XX).

[chem 41]

(43) The liquid crystal composition according to any one of the above items (2) to (42), which contains a compound represented by the following formula (12.3) as at least one compound represented by the above general formula (L).

[chem 42]

(44) The liquid crystal composition according to any one of the above items (1) to (43), which further contains a compound represented by the following formula (62.1).

[chem 43]

(45) The liquid crystal composition according to any one of the above items (1) to (44), which further contains a compound represented by the following formula (62.3).

[chem 44]

(46) A liquid crystal display element using the liquid crystal composition described in any one of the above items (1) to (45).

(47) The liquid crystal display element as described in the aforementioned item (46), wherein the display mode is an IPS mode.

(48) The liquid crystal display element as described in the aforementioned item (46), wherein the display mode is an OCB mode.

(49) The liquid crystal display element as described in the aforementioned item (46), wherein the display mode is an ECB mode.

(50) The liquid crystal display element as described in the aforementioned item (46), wherein the display mode is a VA mode.

(51) The liquid crystal display element as described in the aforementioned item (46), wherein the display mode is a VA-IPS mode.

(52) The liquid crystal display element as described in the aforementioned item (46), wherein the display mode is an FFS mode.

(53) A liquid crystal display characterized by using the liquid crystal display element described in any one of the aforementioned items (46) to (52).

The effect of the invention

The composition with positive dielectric constant anisotropy of the present invention can maintain low viscosity, high resistivity, and high voltage retention, and can significantly improve the solubility at low temperature compared with the past at the same time. In the liquid crystal display element manufacturing process, it can continue to drop stably over a long period of time. Therefore, the composition of the present invention can produce a liquid crystal display element with excellent display quality by suppressing display defects caused by the manufacturing process with a high yield, and has high practicality (applicability) to liquid crystal products, and IPS ( In-plane switching) type, FFS (fringe field switching) type, etc. liquid crystal display elements can achieve high-speed response.

Description of drawings

Fig. 1 is a cross-sectional view of a liquid crystal display element of the present invention. A substrate having 100 to 105 is referred to as a "back plate", and a substrate having 200 to 205 is referred to as a "front plate".

FIG. 2 is a view showing an exposure treatment process using a pattern for columnar spacer production formed on a black matrix as a photomask pattern.

Detailed ways

The liquid crystal composition of the present invention is a liquid crystal composition having positive dielectric constant anisotropy, and contains a compound represented by the following formula (i) and a compound represented by the following general formula (ii). The liquid crystal composition will be described below, but "%" means "mass%" unless otherwise indicated. Moreover, as preferable content of each compound, the preferable content at the time of compounding the said compound into a liquid crystal composition can be illustrated (however, the case where the lower limit is 0 mass % is excluded).

[chem 45]

In the general formula (ii), R ^iia represents an alkenyl group having 2 to 5 carbon atoms, and R ^iib represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the formula (i) in the aforementioned liquid crystal composition is not particularly limited, and is preferably 1% by mass or more, preferably 2% by mass or more, preferably 3% by mass relative to the total mass of the aforementioned liquid crystal composition. Mass % or more, preferably 4 mass % or more, preferably 5 mass % or more, preferably 6 mass % or more, preferably 7 mass % or more, preferably 8 mass % or more, preferably 9 mass % or more, preferably 11 mass % % or more, preferably 12 mass % or more, preferably 13 mass % or more, preferably 14 mass % or more, preferably 15 mass % or more, preferably 16 mass % or more. On the other hand, considering solubility at low temperature, nematic phase-isotropic liquid phase transition temperature, electrical reliability, etc., the content of the compound represented by formula (i) in the aforementioned liquid crystal composition, relative to the aforementioned The total mass of the liquid crystal composition is preferably 30% by mass or less, preferably 25% by mass or less, preferably 21% by mass or less, preferably 16% by mass or less, preferably 15% by mass or less, preferably 14% by mass or less, preferably It is 13 mass % or less, preferably 12 mass % or less, preferably 11 mass % or less, preferably 10 mass % or less, preferably 9 mass % or less, preferably 8 mass % or less, preferably 7 mass % or less, preferably 6% by mass or less, preferably 4% by mass or less. Wherein, the content of the compound represented by formula (i) in the aforementioned liquid crystal composition is preferably 1 to 30% by mass, preferably 1 to 25% by mass, preferably 1% by mass relative to the total mass of the liquid crystal composition of the present invention. ~21% by mass, preferably 1-14% by mass, preferably 1-12% by mass, preferably 1-10% by mass, preferably 1-9% by mass, preferably 1-8% by mass, preferably 1-7% by mass % by mass, preferably 2 to 21% by mass, preferably 3 to 21% by mass, preferably 4 to 21% by mass, preferably 5 to 21% by mass, preferably 6 to 21% by mass, preferably 7 to 21% by mass , preferably 12-21 mass%, preferably 16-21 mass%, preferably 4-10 mass%, preferably 5-10 mass%, preferably 5-8 mass%, preferably 6-9 mass%, preferably It is 6-8 mass %, Preferably it is 3-7 mass %, Preferably it is 7-12 mass %, Preferably it is 12-14 mass %, Preferably it is 16-21 mass %.

The content of the compound represented by the general formula (ii) in the aforementioned liquid crystal composition preferably contains 1 Mass % or more, preferably 3 mass % or more, preferably 5 mass % or more, preferably 6 mass % or more, preferably 7 mass % or more, preferably 8 mass % or more, preferably 9 mass % or more, preferably 10 mass % % or more, preferably 11 mass % or more, preferably 12 mass % or more, preferably 14 mass % or more, preferably 15 mass % or more, preferably 16 mass % or more, preferably 18 mass % or more, preferably 20 mass % Above, preferably 23% by mass or more, preferably 26% by mass or more, preferably 27% by mass or more. On the other hand, the content of the compound represented by the general formula (ii) in the liquid crystal composition is preferably 40% by mass or less, preferably 35% by mass or less, preferably 35% by mass or less, based on the total mass of the liquid crystal composition of the present invention. 31% by mass or less, preferably 27% by mass or less, preferably 26% by mass or less, preferably 23% by mass or less, preferably 20% by mass or less, preferably 19% by mass or less, preferably 18% by mass or less, preferably 16% by mass Mass % or less, preferably 15 mass % or less, preferably 14 mass % or less, preferably 13 mass % or less, preferably contain 12 mass % or less, preferably 11 mass % or less, preferably 10 mass % or less, preferably 8 mass % % or less, preferably 7 mass % or less, preferably 6 mass % or less. Wherein, the content of the compound represented by the general formula (ii) in the aforementioned liquid crystal composition is preferably 1 to 40% by mass, preferably 1 to 35% by mass, preferably 1 to 35% by mass, relative to the total mass of the liquid crystal composition of the present invention. 1 to 31% by mass, more preferably 1 to 20% by mass, preferably 1 to 19% by mass, preferably 1 to 16% by mass, preferably 1 to 15% by mass, preferably 1 to 13% by mass, preferably 1 % to 12% by mass, preferably 1 to 10% by mass, preferably 1 to 7% by mass, preferably 3 to 31% by mass, preferably 5 to 31% by mass, preferably 6 to 31% by mass, preferably 7 to 31% by mass % by mass, preferably 8 to 31% by mass, preferably 9 to 31% by mass, preferably 11 to 31% by mass, preferably 12 to 31% by mass, preferably 20 to 31% by mass, preferably 3 to 7% by mass , preferably 7 to 13% by mass, preferably 8 to 13% by mass, preferably 5 to 19% by mass, preferably 6 to 12% by mass, preferably 6 to 10% by mass, preferably 9 to 16% by mass, preferably It is 12-15 mass %, Preferably it is 12-13 mass %, Preferably it is 11-20 mass %.

In the aforementioned liquid crystal composition, the content of the compound represented by the formula (i) and the content of the compound represented by the general formula (ii), from the solubility at low temperature, the nematic phase-isotropic liquid phase transition temperature, the response From the viewpoint of speed, electrical, and optical reliability, the content of the compound represented by formula (i) is preferably 1% by mass or more and 30% by mass or less with respect to the total mass of the liquid crystal composition of the present invention and the general formula ( The content of the compound represented by ii) is 1 mass % to 40 mass %, preferably the content of the compound represented by the formula (i) is 1 mass % to 25 mass % and the content of the compound represented by the general formula (ii) It is 1 mass % to 35 mass %, preferably the content of the compound represented by formula (i) is 2 mass % to 21 mass % and the content of the compound represented by general formula (ii) is 3 mass % to 31 mass % the following.

The total content of the compound represented by the formula (i) and the compound represented by the general formula (ii) is preferably 2% by mass or more, preferably 5% by mass or more, preferably 8% by mass relative to the total mass of the liquid crystal composition % or more, preferably 9 mass % or more, preferably 12 mass % or more, preferably 13 mass % or more, preferably 14 mass % or more, preferably 16 mass % or more, preferably 18 mass % or more, preferably 19 mass % Above, preferably 20% by mass or more, preferably 21% by mass or more, preferably 22% by mass or more, preferably 23% by mass or more, preferably 24% by mass or more, preferably 32% by mass or more, preferably 33% by mass or more , preferably 34% by mass or more, preferably 35% by mass or more, preferably 36% by mass or more, preferably 41% by mass or more, preferably 42% by mass or more. On the other hand, the total content of the compound represented by the formula (i) and the compound represented by the general formula (ii) is preferably 50% by mass or less, preferably 45% by mass or less with respect to the total mass of the liquid crystal composition, Preferably 43% by mass or less, preferably 42% by mass or less, preferably 41% by mass or less, preferably 37% by mass or less, preferably 36% by mass or less, preferably 35% by mass or less, preferably 34% by mass or less, preferably It is 27 mass % or less, preferably 26 mass % or less, preferably 24 mass % or less, preferably 23 mass % or less, preferably 22 mass % or less, preferably 21 mass % or less, preferably 20 mass % or less, preferably 18% by mass or less, preferably 17% by mass or less, preferably 15% by mass or less, preferably 14% by mass or less, preferably 12% by mass or less, preferably 11% by mass or less. Wherein, the total content of the compound represented by the formula (i) and the compound represented by the general formula (ii) is preferably 2 to 50% by mass, preferably 8 to 50% by mass, relative to the total mass of the liquid crystal composition, Preferably it is 12 to 50 mass%, preferably 13 to 50 mass%, preferably 14 to 50 mass%, preferably 16 to 50 mass%, preferably 19 to 50 mass%, preferably 21 to 50 mass%, preferably 32 to 50% by mass, preferably 33 to 50% by mass, preferably 5 to 45% by mass, preferably 5 to 43% by mass, preferably 5 to 37% by mass, preferably 5 to 27% by mass, preferably 5 to 5% by mass 26% by mass, preferably 5-22% by mass, preferably 5-20% by mass, preferably 5-17% by mass, preferably 5-15% by mass, preferably 5-14% by mass, preferably 5-11% by mass %, preferably 8 to 43% by mass, preferably 8 to 22% by mass, preferably 8 to 17% by mass, preferably 8 to 15% by mass, preferably 8 to 14% by mass, preferably 8 to 11% by mass, Preferably it is 12 to 22% by mass, preferably 13 to 20% by mass, preferably 12 to 17% by mass, preferably 14 to 17% by mass, preferably 16 to 22% by mass, preferably 19 to 22% by mass, preferably 9 to 15% by mass, preferably 13 to 27% by mass, preferably 21 to 26% by mass, preferably 32 to 37% by mass, preferably 33 to 43% by mass.

At least one compound represented by the aforementioned general formula (ii) is contained in the liquid crystal composition of the present invention. When at least two compounds represented by the aforementioned general formula (ii) are blended, they can be appropriately combined according to required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

Furthermore, the compound represented by the aforementioned general formula (ii) is preferably at least one compound selected from the compound group represented by, for example, formula (ii.1) to formula (ii.3).

[chem 46]

According to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., the compound represented by formula (ii.1) may be contained, the compound represented by formula (ii.2) may be contained, and the compound represented by formula (ii.2) may be contained. Both the compound represented by formula (ii.1) and the compound represented by formula (ii.2) may be contained, and all the compounds represented by formula (ii.1) to formula (ii.3) may be contained.

The content of the compound represented by the formula (ii.1) is preferably 1 to 30% by mass, preferably 2 to 25% by mass, preferably 2 to 20% by mass based on the total mass of the liquid crystal composition of the present invention. Among them, for example, 3 to 20 mass %, 5 to 20 mass %, 6 to 20 mass %, 7 to 20 mass %, 8 to 20 mass %, 9 to 20 mass %, 10 to 20 mass %, 11 to 20 mass % are preferable. Mass %, 12-20 mass %, 13-20 mass %, 14-20 mass %, 16-20 mass %, 3-17 mass %, 3-16 mass %, 3-15 mass %, 3-14 mass % , 3-13 mass%, 3-11 mass%, 3-10 mass%, 3-9 mass%, 3-8 mass%, 3-7 mass%, 3-6 mass%, 3-5 mass%, 5 ～13 mass%, 5～10 mass%, 5～9 mass%, 6～11 mass%, 6～10 mass%, 7～15 mass%, 7～13 mass%, 8～15 mass%, 12～15 mass% % by mass, 10 to 16% by mass, 13 to 16% by mass, and 13 to 17% by mass.

In addition, the content of the compound represented by the aforementioned formula (ii.2) is preferably 1 to 30% by mass, preferably 1 to 25% by mass, preferably 1 to 20% by mass based on the total mass of the liquid crystal composition of the present invention. . Among them, for example, it is preferably 1 to 17% by mass, preferably 1 to 16% by mass, preferably 1 to 15% by mass, preferably 1 to 14% by mass, preferably 1 to 13% by mass, preferably 1 to 12% by mass %, preferably 1 to 11% by mass, preferably 1 to 10% by mass, preferably 1 to 9% by mass, preferably 1 to 7% by mass, preferably 1 to 3% by mass, preferably 2 to 17% by mass, Preferably it is 3-17 mass %, Preferably it is 4-17 mass %, Preferably it is 5-17 mass %, Preferably it is 6-17 mass %, Preferably it is 7-17 mass %, Preferably it is 8-17 mass %, Preferably it is 9 to 17% by mass, preferably 10 to 17% by mass, preferably 11 to 17% by mass, preferably 13 to 17% by mass, preferably 2 to 13% by mass, preferably 9 to 13% by mass, preferably 3 to 10% by mass 10% by mass, preferably 7 to 10% by mass, preferably 9 to 10% by mass, preferably 4 to 15% by mass, preferably 8 to 15% by mass, preferably 10 to 15% by mass, preferably 5 to 11% by mass %, preferably 5 to 9 mass%, preferably 6 to 12 mass%, preferably 8 to 16 mass%, preferably 11 to 14 mass%, preferably 13 to 14 mass%.

When the liquid crystal composition of the present invention contains only any one of the compounds represented by the aforementioned formula (ii.1) and the aforementioned formula (ii.2), the compound represented by the aforementioned formula (i) and the aforementioned formula (ii. .1) or the total content of the compound represented by the aforementioned formula (ii.2), with respect to the total mass of the liquid crystal composition of the present invention, preferably 5 to 40% by mass, more preferably 10 to 30% by mass, and further Preferably it is 10-25 mass %, Especially preferably, it is 15-25 mass %.

In the case where both the compound represented by the aforementioned formula (ii.1) and the compound represented by the aforementioned formula (ii.2) are contained, the total mass of both compounds relative to the total mass of the liquid crystal composition of the present invention is preferably 1 mass % to 45 mass %, preferably 1 mass % to 40 mass %, preferably 1 mass % to 35 mass %, preferably 1 mass % to 31 mass %, preferably 1 mass % to 27 mass % % or less, preferably 1 mass % to 26 mass %, preferably 1 mass % to 23 mass %, preferably 1 mass % to 20 mass %, preferably 1 mass % to 19 mass %, preferably 1 mass % Mass % to 18 mass %, preferably 1 mass % to 16 mass %, preferably 1 mass % to 15 mass %, preferably 1 mass % to 14 mass %, preferably 1 mass % to 13 mass % Below, preferably 1 mass % to 12 mass %, preferably 1 mass % to 11 mass %, preferably 1 mass % to 10 mass %, preferably 1 mass % to 8 mass %, preferably 1 mass % % to 7 mass %, preferably 1 mass % to 6 mass %, preferably 3 mass % to 31 mass %, preferably 5 mass % to 31 mass %, preferably 6 mass % to 31 mass % , preferably not less than 7% by mass and not more than 31% by mass, preferably not less than 8% by mass and not more than 31% by mass, preferably not less than 9% by mass and not more than 31% by mass, preferably not less than 10% by mass and not more than 31% by mass, preferably 11% by mass More than 31 mass %, preferably 12 mass % to 31 mass %, preferably 14 mass % to 31 mass %, preferably 15 mass % to 31 mass %, preferably 16 mass % to 31 mass %, Preferably it is 18 mass % or more and 31 mass % or less, Preferably it is 20 mass % or more and 31 mass % or less, Preferably it is 23 mass % or more and 31 mass % or less, Preferably it is 26 mass % or more and 31 mass % or less, Preferably it is 27 mass % or more 31 mass % or less, preferably 3 mass % or more and 7 mass % or less, preferably 5 mass % or more and 19 mass % or less, preferably 9 mass % or more and 16 mass % or less, preferably 12 mass % or more and 15 mass % or less, preferably 12% by mass to 13% by mass, preferably 6% by mass to 12% by mass, preferably 6% by mass to 10% by mass, preferably 7% by mass to 13% by mass, preferably 8% by mass to 13% by mass Mass % or less, Preferably it is 11 mass % or more and 20 mass % or less, Preferably it is 20 mass % or more and 31 mass % or less.

The liquid crystal composition of the present invention may further contain at least one compound represented by general formula (L).

[chem 47]

In the aforementioned general formula (L), R ^L1 and R ^L2 each independently represent an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or at least two non-adjacent -CH ₂ - may each independently be -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-substitution.

OL means 0, 1, 2 or 3.

B ^L1 , B ^L2 and B ^L3 each independently represent a group selected from the group consisting of the following groups.

(a) 1,4-cyclohexylene (1 -CH ₂ - or at least 2 non-adjacent -CH ₂ - present in this group may be substituted with -O-), and

(b) 1,4-phenylene (1 -CH= or at least 2 non-adjacent -CH= present in this group may be replaced by -N=),

At least one hydrogen atom in the above-mentioned group (a) and group (b) may be independently substituted by a cyano group, a fluorine atom or a chlorine atom.

L ^L1 and L ^L2 each independently represent a single bond, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -OCF ₂ - , -CF ₂ O-, -CH=NN=CH-, -CH=CH-, -CF=CF- or -C≡C-.

When OL is 2 or 3 and there are multiple L ^L2 , they may be the same or different.

When OL is 2 or 3 and there are multiple ^BL3s , they may be the same or different.

However, the compound represented by the aforementioned general formula (ii) is excluded.

The types of compounds that can be combined are not particularly limited, and can be used in combination as appropriate according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence (refractive index anisotropy). The type of compound to be used is, for example, one type in one embodiment of the present invention. Or two types in another embodiment of this invention. Moreover, in another embodiment of this invention, it is three types. In addition, in another embodiment of this invention, there are four types. Furthermore, in another embodiment of this invention, it is five types. In addition, in another embodiment of this invention, there are six types. Furthermore, in another embodiment of this invention, there are seven types. In addition, in another embodiment of this invention, it is 8 types. Furthermore, in another embodiment of this invention, there are nine types. Furthermore, in another embodiment of this invention, it is 10 or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (L) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in, medium The required properties such as electrical constant anisotropy can be adjusted appropriately.

Content of the compound represented by the said general formula (L) is 10-90 mass % in one Embodiment of this invention with respect to the gross mass of the liquid-crystal composition of this invention, for example. Moreover, in another embodiment of this invention, the said content is 15-85 mass %. In addition, in another embodiment of this invention, the said content is 20-80 mass %. Furthermore, in another embodiment of this invention, the said content is 22-80 mass %. In addition, in another embodiment of this invention, the said content is 30-80 mass %. In addition, in another embodiment of this invention, the said content is 31-80 mass %. In addition, in another embodiment of this invention, the said content is 33-80 mass %. In addition, in another embodiment of this invention, the said content is 35-80 mass %. In addition, in another embodiment of this invention, the said content is 36-80 mass %. Furthermore, in another embodiment of this invention, the said content is 37-80 mass %. In addition, in another embodiment of this invention, the said content is 39-80 mass %. In addition, in another embodiment of this invention, the said content is 40-80 mass %. In addition, in another embodiment of this invention, the said content is 41-80 mass %. In addition, in another embodiment of this invention, the said content is 42-80 mass %. In addition, in another embodiment of this invention, the said content is 43-80 mass %. In addition, in another embodiment of this invention, the said content is 45-80 mass %. In addition, in another embodiment of this invention, the said content is 46-80 mass %. In addition, in another embodiment of this invention, the said content is 47-80 mass %. In addition, in another embodiment of this invention, the said content is 49-80 mass %. In addition, in another embodiment of this invention, the said content is 50-80 mass %. In addition, in another embodiment of this invention, the said content is 51-80 mass %. In addition, in another embodiment of this invention, the said content is 58-80 mass %. In addition, in another embodiment of this invention, the said content is 59-80 mass %. In addition, in another embodiment of this invention, the said content is 70-57 mass %. In addition, in another embodiment of this invention, the said content is 20-76 mass %. In addition, in another embodiment of this invention, the said content is 20-70 mass %. In addition, in another embodiment of this invention, the said content is 20-59 mass %. In addition, in another embodiment of this invention, the said content is 20-58 mass %. In addition, in another embodiment of this invention, the said content is 20-56 mass %. In addition, in another embodiment of this invention, the said content is 20-55 mass %. In addition, in another embodiment of this invention, the said content is 20-53 mass %. Furthermore, in another embodiment of this invention, the said content is 20-52 mass %. In addition, in another embodiment of this invention, the said content is 20-51 mass %. In addition, in another embodiment of this invention, the said content is 20-49 mass %. In addition, in another embodiment of this invention, the said content is 20-48 mass %. In addition, in another embodiment of this invention, the said content is 20-47 mass %. Furthermore, in another embodiment of this invention, the said content is 20-45 mass %. Furthermore, in another embodiment of this invention, the said content is 20-43 mass %. Furthermore, in another embodiment of this invention, the said content is 20-41 mass %. In addition, in another embodiment of this invention, the said content is 20-40 mass %. Furthermore, in another embodiment of this invention, the said content is 20-37 mass %. In addition, in another embodiment of this invention, the said content is 20-35 mass %. In addition, in another embodiment of this invention, the said content is 20-33 mass %. Furthermore, in another embodiment of this invention, the said content is 20-31 mass %. In addition, in another embodiment of this invention, the said content is 20-30 mass %. Furthermore, in another embodiment of this invention, the said content is 35-37 mass %. Furthermore, in another embodiment of this invention, the said content is 37-48 mass %. Furthermore, in another embodiment of this invention, the said content is 36-45 mass %. Furthermore, in another embodiment of this invention, the said content is 39-43 mass %. In addition, in another embodiment of this invention, the said content is 40-76 mass %. In addition, in another embodiment of this invention, the said content is 42-56 mass %. In addition, in another embodiment of this invention, the said content is 45-56 mass %. Furthermore, in another embodiment of this invention, the said content is 47-55 mass %. In addition, in another embodiment of this invention, the said content is 49-55 mass %. In addition, in another embodiment of this invention, the said content is 50-53 mass %. In addition, in another embodiment of this invention, the said content is 43-49 mass %. Furthermore, in another embodiment of this invention, the said content is 46-52 mass %. In addition, in another embodiment of this invention, the said content is 51-56 mass %.

When the viscosity of the liquid crystal composition of the present invention is kept low and a liquid crystal composition having a quick response speed is required, it is preferable that the above-mentioned lower limit is high and the upper limit is high. In addition, when keeping Tni of the liquid crystal composition of this invention high and a liquid crystal composition favorable in temperature stability is required, it is preferable that the above-mentioned lower limit is high and the upper limit is high. In addition, when it is desired to increase the dielectric constant anisotropy in order to keep the driving voltage low, it is preferable that the above-mentioned lower limit is low and the upper limit is low.

R ^L1 and R ^L2 are preferably straight-chain C1-5 alkyl groups, straight-chain C1-C4 (or its The alkoxy group of the above) or the alkenyl group having 4 to 5 carbon atoms, when the ring structure to which it is bonded is a saturated ring structure such as cyclohexane, pyran, or dioxane, it is preferably a straight-chain carbon An alkyl group having 1 to 5 atoms, a straight-chain alkoxy group having 1 to 4 carbon atoms (or more), or a straight-chain alkenyl group having 2 to 5 carbon atoms.

When the compound represented by general formula (L) requires the chemical stability of a liquid crystal composition, it is preferable not to have a chlorine atom in the molecule.

The compound represented by the general formula (L) is preferably, for example, a compound selected from the group of compounds represented by the general formula (I).

[chem 48]

R ¹¹ - A ¹¹ - A ¹² - R ¹² (I)

In the aforementioned general formula (I), R ¹¹ and R ¹² each independently represent an alkyl group with 1 to 5 carbon atoms, an alkoxy group with 1 to 5 carbon atoms, or an alkenyl group with 2 to 5 carbon atoms, A ¹¹ and A ¹² each independently represent 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene or 3-fluoro-1,4-phenylene.

The types of compounds that can be combined are not particularly limited, and may be used in appropriate combination according to required performances such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Moreover, in another embodiment of this invention, it is three types. In addition, in another embodiment of this invention, there are four types. Furthermore, in another embodiment of this invention, it is five types. Furthermore, in another embodiment of this invention, it is 6 or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (I) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in, medium The required properties such as electrical constant anisotropy can be adjusted appropriately.

Content of the compound represented by the said General formula (I) with respect to the gross mass of the liquid-crystal composition of this invention is 10-75 mass %, for example in one Embodiment of this invention. Or in another embodiment of this invention, the said content is 10-70 mass %. Moreover, in another embodiment of this invention, the said content is 10-65 mass %. In addition, in another embodiment of this invention, the said content is 10-60 mass %. Furthermore, in another embodiment of this invention, the said content is 15-60 mass %. In addition, in another embodiment of this invention, the said content is 15-59 mass %. In addition, in another embodiment of this invention, the said content is 15-56 mass %. In addition, in another embodiment of this invention, the said content is 15-52 mass %. In addition, in another embodiment of this invention, the said content is 15-51 mass %. In addition, in another embodiment of this invention, the said content is 15-49 mass %. In addition, in another embodiment of this invention, the said content is 15-48 mass %. Furthermore, in another embodiment of this invention, the said content is 15-47 mass %. Furthermore, in another embodiment of this invention, the said content is 15-45 mass %. Furthermore, in another embodiment of this invention, the said content is 15-44 mass %. Furthermore, in another embodiment of this invention, the said content is 15-43 mass %. Furthermore, in another embodiment of this invention, the said content is 15-41 mass %. In addition, in another embodiment of this invention, the said content is 15-39 mass %. In addition, in another embodiment of this invention, the said content is 15-38 mass %. In addition, in another embodiment of this invention, the said content is 15-35 mass %. Furthermore, in another embodiment of this invention, the said content is 15-33 mass %. Furthermore, in another embodiment of this invention, the said content is 15-31 mass %. Furthermore, in another embodiment of this invention, the said content is 15-30 mass %. In addition, in another embodiment of this invention, the said content is 15-29 mass %. In addition, in another embodiment of this invention, the said content is 15-28 mass %. In addition, in another embodiment of this invention, the said content is 15-20 mass %. In addition, in another embodiment of this invention, the said content is 17-60 mass %. In addition, in another embodiment of this invention, the said content is 20-60 mass %. Furthermore, in another embodiment of this invention, the said content is 27-60 mass %. Furthermore, in another embodiment of this invention, the said content is 28-60 mass %. In addition, in another embodiment of this invention, the said content is 30-60 mass %. In addition, in another embodiment of this invention, the said content is 31-60 mass %. In addition, in another embodiment of this invention, the said content is 32-60 mass %. In addition, in another embodiment of this invention, the said content is 33-60 mass %. Furthermore, in another embodiment of this invention, the said content is 34-60 mass %. Furthermore, in another embodiment of this invention, the said content is 35-60 mass %. Furthermore, in another embodiment of this invention, the said content is 36-60 mass %. Furthermore, in another embodiment of this invention, the said content is 37-60 mass %. In addition, in another embodiment of this invention, the said content is 39-60 mass %. In addition, in another embodiment of this invention, the said content is 41-60 mass %. In addition, in another embodiment of this invention, the said content is 42-60 mass %. In addition, in another embodiment of this invention, the said content is 43-60 mass %. In addition, in another embodiment of this invention, the said content is 44-60 mass %. Furthermore, in another embodiment of this invention, the said content is 46-60 mass %. Furthermore, in another embodiment of this invention, the said content is 47-60 mass %. In addition, in another embodiment of this invention, the said content is 48-60 mass %. Furthermore, in another embodiment of this invention, the said content is 49-60 mass %. In addition, in another embodiment of this invention, the said content is 51-60 mass %. Furthermore, in another embodiment of this invention, the said content is 17-45 mass %. Furthermore, in another embodiment of this invention, the said content is 27-29 mass %. Furthermore, in another embodiment of this invention, the said content is 32-43 mass %. In addition, in another embodiment of this invention, the said content is 34-38 mass %. Furthermore, in another embodiment of this invention, the said content is 36-45 mass %. Furthermore, in another embodiment of this invention, the said content is 37-48 mass %. In addition, in another embodiment of this invention, the said content is 42-56 mass %. In addition, in another embodiment of this invention, the said content is 43-52 mass %. In addition, in another embodiment of this invention, the said content is 43-49 mass %. In addition, in another embodiment of this invention, the said content is 43-44 mass %. In addition, in another embodiment of this invention, the said content is 44-48 mass %. In addition, in another embodiment of this invention, the said content is 47-51 mass %.

When the viscosity of the liquid crystal composition of the present invention is kept low and a liquid crystal composition having a quick response speed is required, it is preferable that the above-mentioned lower limit is high and the upper limit is high. In addition, when keeping Tni of the liquid crystal composition of the present invention high and requiring a liquid crystal composition with good temperature stability, it is preferable that the above-mentioned lower limit value is medium and the upper limit value is medium. In addition, when it is desired to increase the dielectric constant anisotropy in order to keep the driving voltage low, it is preferable that the above-mentioned lower limit is low and the upper limit is low.

R ¹¹ and R ¹² are preferably straight-chain alkyl groups with 1 to 5 carbon atoms or straight-chain alkoxy groups with 1 to 4 carbon atoms when the ring structures to which they are bonded are phenyl (aromatic). A group or an alkenyl group having 4 to 5 carbon atoms, when the ring structure to which it is bonded is a saturated ring structure such as cyclohexane, pyran, or dioxane, it is preferably a linear one having 1 to 5 carbon atoms An alkyl group, a linear alkoxy group having 1 to 4 carbon atoms, or a linear alkenyl group having 2 to 5 carbon atoms.

The compound represented by the aforementioned general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-1).

[chem 49]

In the aforementioned general formula (I-1), R ¹¹ and R ¹² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms.

The types of compounds that can be combined are not particularly limited, and may be used in appropriate combination according to required performances such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Moreover, in another embodiment of this invention, it is three types. In addition, in another embodiment of this invention, there are four types. Furthermore, in another embodiment of this invention, it is 5 or more types.

When the compound represented by the general formula (I-1) is blended in the liquid crystal composition of the present invention, the content of the compound must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, and process suitability. , Drip marks, burn-in screen, dielectric constant anisotropy and other required properties to make appropriate adjustments.

Content of the compound represented by the said General formula (I-1) is 10-70 mass % with respect to the gross mass of the liquid-crystal composition of this invention, for example in one Embodiment of this invention. Or in another embodiment of this invention, the said content is 10-60 mass %. Moreover, in another embodiment of this invention, the said content is 15-60 mass %. In addition, in another embodiment of this invention, the said content is 15-59 mass %. In addition, in another embodiment of this invention, the said content is 15-56 mass %. In addition, in another embodiment of this invention, the said content is 15-52 mass %. In addition, in another embodiment of this invention, the said content is 15-50 mass %. In addition, in another embodiment of this invention, the said content is 15-49 mass %. In addition, in another embodiment of this invention, the said content is 15-48 mass %. Furthermore, in another embodiment of this invention, the said content is 15-47 mass %. Furthermore, in another embodiment of this invention, the said content is 15-46 mass %. Furthermore, in another embodiment of this invention, the said content is 15-45 mass %. In addition, in another embodiment of this invention, the said content is 15-39 mass %. In addition, in another embodiment of this invention, the said content is 15-38 mass %. In addition, in another embodiment of this invention, the said content is 15-35 mass %. Furthermore, in another embodiment of this invention, the said content is 15-33 mass %. Furthermore, in another embodiment of this invention, the said content is 15-30 mass %. In addition, in another embodiment of this invention, the said content is 15-28 mass %. Furthermore, in another embodiment of this invention, the said content is 15-26 mass %. In addition, in another embodiment of this invention, the said content is 15-20 mass %. Moreover, in another embodiment of this invention, the said content is 17-60 mass %. Moreover, in another embodiment of this invention, the said content is 20-60 mass %. Moreover, in another embodiment of this invention, the said content is 21-60 mass %. Moreover, in another embodiment of this invention, the said content is 23-60 mass %. Moreover, in another embodiment of this invention, the said content is 26-60 mass %. Moreover, in another embodiment of this invention, the said content is 27-60 mass %. Moreover, in another embodiment of this invention, the said content is 2-60 mass %. Moreover, in another embodiment of this invention, the said content is 30-60 mass %. Moreover, in another embodiment of this invention, the said content is 33-60 mass %. Moreover, in another embodiment of this invention, the said content is 34-60 mass %. Moreover, in another embodiment of this invention, the said content is 35-60 mass %. Moreover, in another embodiment of this invention, the said content is 36-60 mass %. Moreover, in another embodiment of this invention, the said content is 37-60 mass %. Moreover, in another embodiment of this invention, the said content is 38-60 mass %. Moreover, in another embodiment of this invention, the said content is 39-60 mass %. Moreover, in another embodiment of this invention, the said content is 42-60 mass %. Moreover, in another embodiment of this invention, the said content is 43-60 mass %. Moreover, in another embodiment of this invention, the said content is 46-60 mass %. Moreover, in another embodiment of this invention, the said content is 47-60 mass %. Moreover, in another embodiment of this invention, the said content is 49-60 mass %. Moreover, in another embodiment of this invention, the said content is 50-60 mass %. Moreover, in another embodiment of this invention, the said content is 17-45 mass %. Moreover, in another embodiment of this invention, the said content is 21-24 mass %. Moreover, in another embodiment of this invention, the said content is 27-38 mass %. Moreover, in another embodiment of this invention, the said content is 28-29 mass %. Moreover, in another embodiment of this invention, the said content is 23-46 mass %. Moreover, in another embodiment of this invention, the said content is 34-38 mass %. Moreover, in another embodiment of this invention, the said content is 36-45 mass %. Moreover, in another embodiment of this invention, the said content is 37-48 mass %. Moreover, in another embodiment of this invention, the said content is 42-48 mass %. Moreover, in another embodiment of this invention, the said content is 38-49 mass %. Moreover, in another embodiment of this invention, the said content is 42-56 mass %. Moreover, in another embodiment of this invention, the said content is 42-50 mass %. Moreover, in another embodiment of this invention, the said content is 43-52 mass %. Moreover, in another embodiment of this invention, the said content is 46-47 mass %.

When the viscosity of the liquid crystal composition of the present invention is kept low and a liquid crystal composition having a quick response speed is required, it is preferable that the above-mentioned lower limit is high and the upper limit is high. In addition, when keeping Tni of the liquid crystal composition of the present invention high and requiring a liquid crystal composition with good temperature stability, it is preferable that the above-mentioned lower limit value is medium and the upper limit value is medium. In addition, when it is desired to increase the dielectric constant anisotropy in order to keep the driving voltage low, it is preferable that the above-mentioned lower limit is low and the upper limit is low.

Or/in addition, the compound represented by the general formula (I-1) is preferably at least one compound selected from the group of compounds represented by the general formula (I-1-1).

[chemical 50]

In the aforementioned general formula (I-1-1), R ¹² represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 5 carbon atoms.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (I-1-1) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, The required properties such as burn-in screen and dielectric constant anisotropy can be adjusted appropriately.

Content of the compound represented by the said General formula (I-1-1) with respect to the gross mass of the liquid-crystal composition of this invention is 1-35 mass %, for example in one Embodiment of this invention. Or in another embodiment of this invention, the said content is 1-30 mass %. Moreover, in another embodiment of this invention, the said content is 1-26 mass %. In addition, in another embodiment of this invention, the said content is 1-21 mass %. In addition, in another embodiment of this invention, the said content is 1-16 mass %. In addition, in another embodiment of this invention, the said content is 1-15 mass %. In addition, in another embodiment of this invention, the said content is 1-13 mass %. In addition, in another embodiment of this invention, the said content is 1-12 mass %. In addition, in another embodiment of this invention, the said content is 1-11 mass %. In addition, in another embodiment of this invention, the said content is 1-10 mass %. In addition, in another embodiment of this invention, the said content is 1-8 mass %. In addition, in another embodiment of this invention, the said content is 1-7 mass %. In addition, in another embodiment of this invention, the said content is 1-5 mass %. In addition, in another embodiment of this invention, the said content is 1-4 mass %. In addition, in another embodiment of this invention, the said content is 3-30 mass %. In addition, in another embodiment of this invention, the said content is 4-30 mass %. In addition, in another embodiment of this invention, the said content is 5-30 mass %. Furthermore, in another embodiment of this invention, the said content is 6-30 mass %. Furthermore, in another embodiment of this invention, the said content is 7-30 mass %. Furthermore, in another embodiment of this invention, the said content is 8-30 mass %. Furthermore, in another embodiment of this invention, the said content is 9-30 mass %. In addition, in another embodiment of this invention, the said content is 10-30 mass %. In addition, in another embodiment of this invention, the said content is 11-30 mass %. In addition, in another embodiment of this invention, the said content is 12-30 mass %. In addition, in another embodiment of this invention, the said content is 13-30 mass %. In addition, in another embodiment of this invention, the said content is 3-26 mass %. Furthermore, in another embodiment of this invention, the said content is 3-13 mass %. Furthermore, in another embodiment of this invention, the said content is 3-8 mass %. In addition, in another embodiment of this invention, the said content is 4-7 mass %. In addition, in another embodiment of this invention, the said content is 5-12 mass %. Furthermore, in another embodiment of this invention, the said content is 9-12 mass %. Furthermore, in another embodiment of this invention, the said content is 6-16 mass %. Furthermore, in another embodiment of this invention, the said content is 7-16 mass %. Furthermore, in another embodiment of this invention, the said content is 7-10 mass %. In addition, in another embodiment of this invention, the said content is 8-26 mass %. Furthermore, in another embodiment of this invention, the said content is 8-15 mass %. Furthermore, in another embodiment of this invention, the said content is 8-13 mass %. Furthermore, in another embodiment of this invention, the said content is 9-25 mass %. In addition, in another embodiment of this invention, the said content is 10-21 mass %. Furthermore, in another embodiment of this invention, the said content is 12-21 mass %. In addition, in another embodiment of this invention, the said content is 13-16 mass %. In addition, in another embodiment of this invention, the said content is 11-26 mass %.

Furthermore, the compound represented by the aforementioned general formula (I-1-1) is preferably a compound selected from the compound group represented by formula (1.1) to formula (1.3), preferably formula (1.2) or formula (1.3 ) is particularly preferably a compound represented by formula (1.3).

[Chemical 51]

In the case where the compounds represented by formula (1.2) or formula (1.3) are used separately, the slightly higher content of the compound represented by formula (1.2) is effective for improving the response speed, and the compound represented by formula (1.3) It is preferable that the content is in the range shown below because it can form a liquid crystal composition with a quick response speed and high electrical and optical reliability.

Content of the compound represented by formula (1.3) is 1-35 mass % in one Embodiment of this invention with respect to the gross mass of the liquid crystal composition of this invention, for example. Or in another embodiment of this invention, the said content is 1-30 mass %. Or in another embodiment of this invention, the said content is 1-25 mass %. Or in another embodiment of this invention, the said content is 1-21 mass %. Or in another embodiment of this invention, the said content is 1-18 mass %. Or in another embodiment of this invention, the said content is 1-16 mass %. Or in another embodiment of this invention, the said content is 1-15 mass %. Or in another embodiment of this invention, the said content is 1-13 mass %. Or in another embodiment of this invention, the said content is 1-12 mass %. Or in another embodiment of this invention, the said content is 1-11 mass %. Or in another embodiment of this invention, the said content is 1-10 mass %. Or in another embodiment of this invention, the said content is 1-8 mass %. Or in another embodiment of this invention, the said content is 1-7 mass %. Or in another embodiment of this invention, the said content is 1-5 mass %. Or in another embodiment of this invention, the said content is 1-4 mass %. Or in another embodiment of this invention, the said content is 3-21 mass %. Or in another embodiment of this invention, the said content is 4-21 mass %. Or in another embodiment of this invention, the said content is 5-21 mass %. Or in another embodiment of this invention, the said content is 6-21 mass %. Or in another embodiment of this invention, the said content is 7-21 mass %. Or in another embodiment of this invention, the said content is 8-21 mass %. Or in another embodiment of this invention, the said content is 9-21 mass %. Or in another embodiment of this invention, the said content is 10-21 mass %. Or in another embodiment of this invention, the said content is 11-21 mass %. Or in another embodiment of this invention, the said content is 12-21 mass %. Or in another embodiment of this invention, the said content is 13-21 mass %. Or in another embodiment of this invention, the said content is 3-13 mass %. Or in another embodiment of this invention, the said content is 3-8 mass %. Or in another embodiment of this invention, the said content is 4-7 mass %. Or in another embodiment of this invention, the said content is 5-12 mass %. Or in another embodiment of this invention, the said content is 9-12 mass %. Or in another embodiment of this invention, the said content is 6-16 mass %. Or in another embodiment of this invention, the said content is 10-16 mass %. Or in another embodiment of this invention, the said content is 13-16 mass %. Or in another embodiment of this invention, the said content is 7-16 mass %. Or in another embodiment of this invention, the said content is 7-10 mass %. Or in another embodiment of this invention, the said content is 8-18 mass %. Or in another embodiment of this invention, the said content is 8-15 mass %. Or in another embodiment of this invention, the said content is 8-13 mass %. Or in another embodiment of this invention, the said content is 9-13 mass %.

Or/in addition, the compound represented by the general formula (I-1) is preferably at least one compound selected from the group of compounds represented by the general formula (I-1-2).

[Chemical 52]

In the aforementioned general formula (I-1-2), R ¹² represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms.

The types of compounds that can be combined are not particularly limited, and may be used in appropriate combination according to required performances such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Moreover, in another embodiment of this invention, it is three types.

In the liquid crystal composition of the present invention, the content of the compound represented by the general formula (I-1-2) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burning Screen, dielectric constant anisotropy and other required properties to make appropriate adjustments.

Content of the compound represented by said General formula (I-1-2) with respect to the gross mass of the liquid-crystal composition of this invention is 1-55 mass %, for example in one Embodiment of this invention. Or in another embodiment of this invention, the said content is 1-50 mass %. Moreover, in another embodiment of this invention, the said content is 1-49 mass %. In addition, in another embodiment of this invention, the said content is 1-47 mass %. In addition, in another embodiment of this invention, the said content is 1-45 mass %. In addition, in another embodiment of this invention, the said content is 1-44 mass %. In addition, in another embodiment of this invention, the said content is 1-40 mass %. In addition, in another embodiment of this invention, the said content is 1-39 mass %. In addition, in another embodiment of this invention, the said content is 1-38 mass %. In addition, in another embodiment of this invention, the said content is 1-36 mass %. In addition, in another embodiment of this invention, the said content is 1-35 mass %. In addition, in another embodiment of this invention, the said content is 1-32 mass %. In addition, in another embodiment of this invention, the said content is 1-30 mass %. In addition, in another embodiment of this invention, the said content is 1-28 mass %. In addition, in another embodiment of this invention, the said content is 1-27 mass %. In addition, in another embodiment of this invention, the said content is 1-26 mass %. In addition, in another embodiment of this invention, the said content is 1-24 mass %. In addition, in another embodiment of this invention, the said content is 1-21 mass %. In addition, in another embodiment of this invention, the said content is 1-20 mass %. In addition, in another embodiment of this invention, the said content is 1-19 mass %. In addition, in another embodiment of this invention, the said content is 1-16 mass %. In addition, in another embodiment of this invention, the said content is 1-15 mass %. In addition, in another embodiment of this invention, the said content is 11-49 mass %. In addition, in another embodiment of this invention, the said content is 12-49 mass %. In addition, in another embodiment of this invention, the said content is 13-49 mass %. In addition, in another embodiment of this invention, the said content is 15-49 mass %. In addition, in another embodiment of this invention, the said content is 16-49 mass %. In addition, in another embodiment of this invention, the said content is 17-49 mass %. In addition, in another embodiment of this invention, the said content is 20-49 mass %. In addition, in another embodiment of this invention, the said content is 23-49 mass %. In addition, in another embodiment of this invention, the said content is 24-49 mass %. In addition, in another embodiment of this invention, the said content is 25-49 mass %. In addition, in another embodiment of this invention, the said content is 28-49 mass %. In addition, in another embodiment of this invention, the said content is 30-49 mass %. In addition, in another embodiment of this invention, the said content is 33-49 mass %. In addition, in another embodiment of this invention, the said content is 35-49 mass %. In addition, in another embodiment of this invention, the said content is 38-49 mass %. In addition, in another embodiment of this invention, the said content is 39-49 mass %. In addition, in another embodiment of this invention, the said content is 45-49 mass %. In addition, in another embodiment of this invention, the said content is 11-44 mass %. In addition, in another embodiment of this invention, the said content is 12-24 mass %. In addition, in another embodiment of this invention, the said content is 13-16 mass %. Furthermore, in another embodiment of this invention, the said content is 15-32 mass %. In addition, in another embodiment of this invention, the said content is 15-21 mass %. In addition, in another embodiment of this invention, the said content is 17-20 mass %. In addition, in another embodiment of this invention, the said content is 16-27 mass %. In addition, in another embodiment of this invention, the said content is 17-28 mass %. In addition, in another embodiment of this invention, the said content is 20-35 mass %. In addition, in another embodiment of this invention, the said content is 23-26 mass %. Furthermore, in another embodiment of this invention, the said content is 24-40 mass %. In addition, in another embodiment of this invention, the said content is 28-38 mass %. In addition, in another embodiment of this invention, the said content is 30-38 mass %. Furthermore, in another embodiment of this invention, the said content is 25-36 mass %. Furthermore, in another embodiment of this invention, the said content is 27-30 mass %. In addition, in another embodiment of this invention, the said content is 30-40 mass %. In addition, in another embodiment of this invention, the said content is 30-39 mass %. In addition, in another embodiment of this invention, the said content is 35-44 mass %. In addition, in another embodiment of this invention, the said content is 35-40 mass %. In addition, in another embodiment of this invention, the said content is 33-47 mass %. Furthermore, in another embodiment of this invention, the said content is 39-47 mass %. Furthermore, in another embodiment of this invention, the said content is 38-45 mass %.

Furthermore, the compound represented by general formula (I-1-2) is preferably a compound selected from the compound group represented by formula (2.1) to formula (2.4), preferably formula (2.2) to formula (2.4) indicated compound. In particular, the compound represented by formula (2.2) is preferable because it particularly improves the response speed of the liquid crystal composition of the present invention. In addition, when high Tni is required rather than response speed, it is preferable to use a compound represented by formula (2.3) or formula (2.4). In order to make the solubility at low temperature favorable, the content of the compound represented by formula (2.3) and formula (2.4) should not be 30 mass % or more.

[Chemical 53]

In the liquid crystal composition of the present invention, the content of the compound represented by formula (2.2) is preferably 1% by mass or more and 55% by mass or less, preferably 1% by mass or more and 50% by mass relative to the total mass of the liquid crystal composition of the present invention. Below, it is preferable that it is 5 mass % or more and 50 mass % or less. Among them, it is preferably 9 mass % to 47 mass %, 9 mass % to 15 mass %, 11 mass % to 44 mass %, 15 mass % to 32 mass %, 20 mass % to 35 mass %, 23 Mass % to 26 mass %, 24 mass % to 40 mass %, 25 mass % to 36 mass %, 28 mass % to 38 mass %, 30 mass % to 40 mass %, 30 mass % to 39 mass % % or less, 30 mass % to 38 mass %, 33 mass % to 47 mass %, 35 mass % to 44 mass %, 35 mass % to 40 mass %, 38 mass % to 45 mass %, 39 mass % % to 47% by mass.

In the liquid crystal composition of the present invention, the content of the compound represented by formula (2.3) is preferably 1% by mass or more and 30% by mass or less, preferably 1% by mass or less and 25% by mass or less, based on the total mass of the liquid crystal composition of the present invention. , preferably 3% by mass or more and 25% by mass or less, preferably 4% by mass or more and 22% by mass or less, preferably 5% by mass or more and 22% by mass or less, preferably 11% by mass or more and 22% by mass or less, preferably 13% by mass Above 22% by mass, preferably 4% by mass to 16% by mass, preferably 4% by mass to 15% by mass, preferably 4% by mass to 10% by mass, preferably 5% by mass to 10% by mass, Preferably it is 12 mass % or more and 15 mass % or less, Preferably it is 13 mass % or more and 16 mass % or less.

In the liquid crystal composition of the present invention, the content of the compound represented by formula (2.4) is preferably 1% by mass or more and 30% by mass or less, more preferably 1% by mass or 25% by mass, relative to the total mass of the liquid crystal composition of the present invention. Less than or equal to 3 mass % to 25 mass %, preferably 4 mass % to 25 mass %, preferably 12 mass % to 25 mass %, preferably 17 mass % to 25 mass %, preferably 20 mass % % to 25% by mass, preferably 4% to 20% by mass, preferably 4% to 13% by mass, preferably 12% to 24% by mass, preferably 17% to 20% by mass .

The liquid crystal composition of the present invention may further contain a compound represented by formula (2.5) having a structure similar to the compound represented by general formula (I-1-2).

[Chemical 54]

It is preferable to adjust the content of the compound represented by the aforementioned formula (2.5) according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., the compound relative to the total mass of the liquid crystal composition of the present invention , preferably contain 0 to 40% by mass, preferably contain 1 to 35% by mass, preferably contain 1 to 30% by mass, preferably contain 5 to 30% by mass, preferably contain 10 to 30% by mass, preferably contain 15 to 30% by mass, preferably It contains 20-30 mass %, Preferably it contains 25-30 mass %.

When the liquid crystal composition containing only one compound as the compound represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned formula (2.5), the compound represented by the aforementioned formula (i), the aforementioned general formula The total content of the compound represented by (ii) and the compound represented by the aforementioned formula (2.5) is preferably 5 to 60% by mass, more preferably 30 to 60% by mass, and furthermore, relative to the total mass of the liquid crystal composition. Preferably it is 45-60 mass %, Especially preferably, it is 45-55 mass %.

Or/in addition, the compound represented by the aforementioned general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-2).

[Chemical 55]

In the aforementioned general formula (I-2), R ¹³ and R ¹⁴ each independently represent an alkyl group having 1 to 5 carbon atoms.

The types of compounds that can be combined are not particularly limited, and are combined in accordance with required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Moreover, in another embodiment of this invention, it is three types.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (I-2) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, and screen burning. , Dielectric constant anisotropy and other required properties to make appropriate adjustments.

Content of the compound represented by said General formula (I-2) is 1-30 mass %, for example in one Embodiment of this invention with respect to the gross mass of the liquid-crystal composition of this invention. Or in another embodiment of this invention, the said content is 2-30 mass %. Moreover, in another embodiment of this invention, the said content is 4-30 mass %. Furthermore, in another embodiment of this invention, the said content is 4-25 mass %. Furthermore, in another embodiment of this invention, the said content is 4-23 mass %.

Furthermore, the compound represented by the aforementioned general formula (I-2) is preferably at least one compound selected from the compound group represented by formula (3.1) to formula (3.4), preferably formula (3.1), formula ( 3.3) and/or a compound represented by formula (3.4). In particular, the compound represented by formula (3.2) is preferable because it particularly improves the response speed of the liquid crystal composition of the present invention. In addition, when a high Tni is required rather than a response speed, it is preferable to use a compound represented by formula (3.3) and/or formula (3.4). In order to make the solubility at low temperature favorable, the content of the compound represented by formula (3.3) and formula (3.4) should not be 20 mass % or more.

[Chemical 56]

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (3.3) is preferably 1% by mass or more and 25% by mass or less, preferably 1% by mass or more and 20% by mass relative to the total mass of the liquid crystal composition of the present invention. % or less, preferably 1 mass % to 15 mass %, preferably 1 mass % to 10 mass %, preferably 1 mass % to 5 mass %.

When the liquid crystal composition containing at least two compounds as the compound represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned formula (3.3), the compound represented by the aforementioned formula (i), the aforementioned general formula The total content of the compound represented by (ii) and the compound represented by the aforementioned formula (3.3) is preferably 10 to 45% by mass, more preferably 20 to 45% by mass, and furthermore, relative to the total mass of the liquid crystal composition. Preferably it is 30-45 mass %, Especially preferably, it is 36-42 mass %.

Or/in addition, the compound represented by the aforementioned general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-3).

[Chemical 57]

In the aforementioned general formula (I-3), R ¹³ represents an alkyl group having 1 to 5 carbon atoms, and R ¹⁵ represents an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and are combined in accordance with required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Moreover, in another embodiment of this invention, it is three types.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (I-3) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in , Dielectric constant anisotropy and other required properties to make appropriate adjustments.

Content of the compound represented by said General formula (I-3) is 3-30 mass %, for example in one Embodiment of this invention with respect to the gross mass of the liquid-crystal composition of this invention. Or in another embodiment of this invention, the said content is 4-30 mass %. Moreover, in another embodiment of this invention, the said content is 15-30 mass %. In addition, in another embodiment of this invention, the said content is 25-30 mass %. Furthermore, in another embodiment of this invention, the said content is 3-25 mass %. In addition, in another embodiment of this invention, the said content is 3-20 mass %. Furthermore, in another embodiment of this invention, the said content is 3-15 mass %. In addition, in another embodiment of this invention, the said content is 3-5 mass %.

When emphasis is placed on solubility at low temperatures, the effect is high when the content is set slightly higher, and conversely, when emphasis is placed on response speed, the effect is higher when the content is set slightly lower. Furthermore, in the case of improving drop marks and burn-in characteristics, it is preferable to set the range of the content in the middle.

Furthermore, the compound represented by the aforementioned general formula (I-3) is preferably at least one compound selected from the compound group represented by formula (4.1) to formula (4.3), preferably represented by formula (4.3) compound.

[Chemical 58]

The content of the compound represented by the aforementioned formula (4.3) is preferably 2% by mass or more and 30% by mass or less, preferably 4% by mass or more and 30% by mass or less, preferably 6% by mass relative to the total mass of the liquid crystal composition of the present invention. More than 30% by mass, preferably 8% by mass to 30% by mass, preferably 10% by mass to 30% by mass, preferably 12% by mass to 30% by mass, preferably 14% by mass to 30% by mass, It is preferably 16 mass % to 30 mass %, preferably 18 mass % to 25 mass %, preferably 20 mass % to 24 mass %, particularly preferably 22 mass % to 23 mass %.

Or/in addition, the compound represented by the aforementioned general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-4).

[Chemical 59]

In the aforementioned general formula (I-4), R ¹¹ and R ¹² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and are combined in accordance with required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (I-4) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, and burn-in. , Dielectric constant anisotropy and other required properties to make appropriate adjustments.

Content of the compound represented by the said General formula (I-4) is 2-30 mass % in one Embodiment of this invention with respect to the gross mass of the liquid-crystal composition of this invention, for example. Or in another embodiment of this invention, the said content is 5-30 mass %. Moreover, in another embodiment of this invention, the said content is 6-30 mass %. Furthermore, in another embodiment of this invention, the said content is 8-30 mass %. In addition, in another embodiment of this invention, the said content is 10-30 mass %. In addition, in another embodiment of this invention, the said content is 12-30 mass %. Furthermore, in another embodiment of this invention, the said content is 15-30 mass %. In addition, in another embodiment of this invention, the said content is 20-30 mass %. In addition, in another embodiment of this invention, the said content is 25-30 mass %. Furthermore, in another embodiment of this invention, the said content is 2-25 mass %. In addition, in another embodiment of this invention, the said content is 2-20 mass %. Furthermore, in another embodiment of this invention, the said content is 2-15 mass %. In addition, in another embodiment of this invention, the said content is 2-10 mass %. In addition, in another embodiment of this invention, the said content is 5-8 mass %.

When obtaining a high birefringence index, the effect is high when the content is set slightly higher, and conversely, when high Tni is emphasized, the effect is higher when the content is set slightly lower. Furthermore, in the case of improving drop marks and burn-in characteristics, it is preferable to set the range of the content in the middle.

Furthermore, the compound represented by general formula (I-4) is preferably at least one compound selected from the compound group represented by formula (5.1) to formula (5.4), preferably from formula (5.2) to formula ( 5.4) At least one compound selected from the group of compounds represented.

[Chemical 60]

It is preferable that content of the compound represented by said formula (5.3) is 1 mass % or more and 30 mass % or less with respect to the gross mass of the liquid crystal composition of this invention. Among them, for example, preferably 1 mass % to 25 mass %, 1 mass % to 20 mass %, 1 mass % to 15 mass %, 1 mass % to 10 mass %, 1 mass % to 8 mass % .

When the liquid crystal composition containing at least two compounds as the compound represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned formula (5.3), the compound represented by the aforementioned formula (i), the aforementioned general formula The total content of the compound represented by (ii) and the compound represented by the aforementioned formula (5.3) is preferably 10 to 50% by mass, more preferably 20 to 50% by mass, and still more preferably It is 30 to 45% by mass, particularly preferably 44 to 48% by mass.

It is preferable that content of the compound represented by said formula (5.4) is 2 mass % or more and 30 mass % or less with respect to the gross mass of the liquid crystal composition of this invention. Among them, for example, preferably 4 mass % to 30 mass %, 6 mass % to 30 mass %, 8 mass % to 30 mass %, 10 mass % to 30 mass %, 12 mass % to 30 mass % , 14 mass % to 30 mass %, 16 mass % to 30 mass %, 18 mass % to 30 mass %, 20 mass % to 30 mass %, 22 mass % to 30 mass %, 23 mass % or more 30 mass % or less, 24 mass % or more and 30 mass % or less, 25 mass % or more and 30 mass % or less, or 4 mass % or more and 6 mass % or less, 4 mass % or more and 8 mass % or less, 4 mass % or more and 10 mass % or less , 4 mass% to 12 mass%, 4 mass% to 14 mass%, 4 mass% to 16 mass%, 4 mass% to 18 mass%, 4 mass% to 20 mass%, 4 mass% or more 22 mass % or less, 4 mass % or more and 23 mass % or less, 4 mass % or more and 24 mass % or less, 4 mass % or more and 25 mass % or less.

Or/in addition, the compound represented by the aforementioned general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-5).

[Chemical 61]

In the aforementioned general formula (I-5), R ¹¹ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and R ¹² represents the number of carbon atoms An alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and are combined in accordance with required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or two types in another embodiment of this invention.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (I-5) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in , Dielectric constant anisotropy and other required properties to make appropriate adjustments.

Content of the compound represented by the said General formula (I-5) is 1-30 mass % in one Embodiment of this invention with respect to the gross mass of the liquid-crystal composition of this invention, for example. Or in another embodiment of this invention, the said content is 1-25 mass %. Moreover, in another embodiment of this invention, the said content is 1-20 mass %. In addition, in another embodiment of this invention, the said content is 1-15 mass %. In addition, in another embodiment of this invention, the said content is 1-11 mass %. In addition, in another embodiment of this invention, the said content is 1-8 mass %. In addition, in another embodiment of this invention, the said content is 1-5 mass %. In addition, in another embodiment of this invention, the said content is 1-4 mass %. In addition, in another embodiment of this invention, the said content is 4-11 mass %. Furthermore, in another embodiment of this invention, the said content is 5-11 mass %. Furthermore, in another embodiment of this invention, the said content is 8-11 mass %. In addition, in another embodiment of this invention, the said content is 10-11 mass %.

When emphasis is placed on solubility at low temperatures, the effect is high when the content is set slightly higher, and conversely, when emphasis is placed on response speed, the effect is higher when the content is set slightly lower. Furthermore, in the case of improving drop marks and burn-in characteristics, it is preferable to set the range of the content in the middle.

Furthermore, the compound represented by the aforementioned general formula (I-5) is preferably at least one compound selected from the compound group represented by formula (6.1) to formula (6.6), preferably selected from formula (6.3), formula (6.4), and/or a compound represented by formula (6.6).

[chem 62]

For example, the content of the compound represented by the aforementioned formula (6.6) is preferably 1 mass % to 25 mass %, preferably 1 mass % to 20 mass %, preferably 1 mass % to the total mass of the liquid crystal composition of the present invention. Mass % to 15 mass %, preferably 1 mass % to 11 mass %, preferably 2 mass % to 11 mass %, preferably 5 mass % to 11 mass %.

When the liquid crystal composition containing only one compound as the compound represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned formula (6.6), the compound represented by the aforementioned formula (i), the aforementioned general formula The total content of the compound represented by (ii) and the compound represented by the aforementioned formula (6.6) is preferably 10 to 40% by mass, more preferably 10 to 30% by mass, and still more preferably It is 20-30 mass %, Especially preferably, it is 25-30 mass %.

When the liquid crystal composition containing at least two compounds as the compound represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned formula (6.6), the compound represented by the aforementioned formula (i), the aforementioned general formula The total content of the compound represented by (ii) and the compound represented by the aforementioned formula (6.6) is preferably 10 to 45% by mass, more preferably 20 to 45% by mass, and still more preferably It is 33 to 45% by mass, particularly preferably 36 to 41% by mass.

The liquid crystal composition of the present invention may further contain a compound represented by formula (6.7) and/or formula (6.8) as a compound represented by general formula (I-5).

[chem 63]

It is preferable to adjust the content of the compound represented by the aforementioned formula (6.7) according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., preferably relative to the total mass of the liquid crystal composition of the present invention. The compound is contained in an amount of 2 mass % to 30 mass %, preferably 3 mass % to 27 mass %, preferably 5 mass % to 25 mass %, preferably 7 mass % to 23 mass %.

Or/in addition, the compound represented by the aforementioned general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-6).

[chem 64]

In the aforementioned formula (I-6), R ¹¹ and R ¹² each independently represent an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 4 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and X ^X11 and ^X12 each independently represent a fluorine atom or a hydrogen atom, and any one of ^X11 or ^X12 is a fluorine atom.

The content of the compound represented by the aforementioned general formula (I-6) is preferably 2 mass % to 30 mass %, preferably 4 mass % to 30 mass %, preferably 4 mass % to 30 mass %, relative to the total mass of the liquid crystal composition of the present invention. 5% by mass to 30% by mass, preferably 6% by mass to 30% by mass, preferably 9% by mass to 30% by mass, preferably 12% by mass to 30% by mass, preferably 14% by mass to 30% by mass % or less, preferably 16 mass % to 30 mass %, preferably 18 mass % to 25 mass %, preferably 20 mass % to 24 mass %, preferably 22 mass % to 23 mass %.

Furthermore, the compound represented by the general formula (I-6) is preferably a compound represented by the formula (7.1).

[chem 65]

Or/in addition, the compound represented by the general formula (I) is preferably a compound selected from the group of compounds represented by the general formula (I-7).

[chem 66]

In the aforementioned general formula (I-7), R ¹¹ and R ¹² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, X ¹² represents a fluorine atom or a chlorine atom.

The content of the compound represented by the aforementioned general formula (I-7) is preferably 1 mass % to 20 mass %, preferably 1 mass % to 15 mass %, preferably 1 mass % to the total mass of the liquid crystal composition of the present invention, preferably 1% by mass to 10% by mass, preferably 1% by mass to 5% by mass.

Furthermore, the compound represented by the general formula (I-7) is preferably a compound represented by the formula (8.1).

[chem 67]

It is preferable that content of the compound represented by said formula (8.1) is 1 mass % or more and 20 mass % or less with respect to the gross mass of the liquid crystal composition of this invention. Among them, for example, it is preferably from 1 mass % to 15 mass %, from 1 mass % to 10 mass %, and from 1 mass % to 3 mass %.

When the liquid crystal composition containing only one compound as the compound represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned formula (8.1), the compound represented by the aforementioned formula (i), the aforementioned general formula The total content of the compound represented by (ii) and the compound represented by the aforementioned formula (8.1) is preferably 5 to 40% by mass, more preferably 5 to 30% by mass, and still more preferably, based on the total mass of the liquid crystal composition. It is 5-20 mass %, Especially preferably, it is 10-15 mass %.

Or/in addition, the compound represented by the aforementioned general formula (I) is preferably at least one compound selected from the group of compounds represented by the general formula (I-8).

[chem 68]

In the aforementioned general formula (I-8), R ¹⁶ and R ¹⁷ each independently represent an alkenyl group having 2 to 5 carbon atoms.

The types of compounds that can be combined are not particularly limited, and it is preferable to combine one to three compounds according to required performances such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

The content of the compound represented by the aforementioned general formula (I-8) is determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, screen burning, dielectric constant anisotropy, etc. The required performance is preferably 1 to 30% by mass, preferably 1 to 25% by mass, preferably 1 to 20% by mass, preferably 1 to 18% by mass, preferably 1 to 18% by mass, based on the total mass of the liquid crystal composition of the present invention. 3 to 18 mass%, preferably 4 to 9 mass%, preferably 4 to 6 mass%.

Furthermore, the compound represented by the aforementioned general formula (I-8) is preferably at least one compound selected from the compound group represented by formula (9.1) to formula (9.10), preferably formula (9.2), formula ( 9.4), and/or a compound represented by formula (9.7).

[chem 69]

Or/in addition, the compound represented by the aforementioned general formula (L) is preferably, for example, at least one compound selected from the compounds represented by the general formula (II).

[chem 70]

In the aforementioned general formula (II), R ²¹ and R ²² each independently represent an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and A ² represents 1,4-cyclohexylene or 1,4-phenylene, and Q ² represents a single bond, -COO-, -CH ₂ -CH ₂ -, or -CF ₂ O-. However, the compound represented by the aforementioned general formula (ii) is excluded.

The types of compounds that can be combined are not particularly limited, and are combined in accordance with required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or two types in another embodiment of this invention. Moreover, in still another embodiment of this invention, there are three types. Furthermore, in another embodiment of this invention, it is 4 or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (II) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in, medium The required properties such as electrical constant anisotropy can be adjusted appropriately.

Content of the compound represented by the said General formula (II) with respect to the gross mass of the liquid-crystal composition of this invention is 3-35 mass %, for example in one Embodiment of this invention. Or in another embodiment of this invention, the said content is 3-30 mass %. Moreover, in another embodiment of this invention, the said content is 3-25 mass %. In addition, in another embodiment of this invention, the said content is 3-21 mass %. In addition, in another embodiment of this invention, the said content is 3-20 mass %. In addition, in another embodiment of this invention, the said content is 3-18 mass %. Furthermore, in another embodiment of this invention, the said content is 3-15 mass %. Furthermore, in another embodiment of this invention, the said content is 3-12 mass %. Furthermore, in another embodiment of this invention, the said content is 4-21 mass %. Furthermore, in another embodiment of this invention, the said content is 11-21 mass %. In addition, in another embodiment of this invention, the said content is 13-21 mass %. In addition, in another embodiment of this invention, the said content is 15-21 mass %. In addition, in another embodiment of this invention, the said content is 16-21 mass %. Furthermore, in another embodiment of this invention, the said content is 4-12 mass %. In addition, in another embodiment of this invention, the said content is 11-20 mass %. In addition, in another embodiment of this invention, the said content is 13-15 mass %. In addition, in another embodiment of this invention, the said content is 15-18 mass %.

Furthermore, the compound represented by the aforementioned general formula (II) is preferably at least one compound selected from the compound group represented by the general formula (II-1), for example.

[chem 71]

In the aforementioned general formula (II-1), R ²¹ and R ²² each independently represent an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (II-1) is preferably adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., and is preferably 4% by mass or more and 24% by mass Below, it is preferably 8% by mass or more and 18% by mass or less, more preferably 12% by mass or more and 14% by mass or less.

Furthermore, the compound represented by general formula (II-1) is preferably, for example, a compound represented by formula (10.1) and/or formula (10.2).

[chem 72]

Or/in addition, the compound represented by the aforementioned general formula (II) is preferably at least one compound selected from the compound group represented by the general formula (II-3), for example.

[chem 73]

In the aforementioned general formula (II-3), R ²⁵ represents an alkyl group having 1 to 5 carbon atoms, and R ²⁴ represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and it is preferable to contain 1 to 3 compounds from among these compounds in accordance with required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

The content of the compound represented by the aforementioned general formula (II-3) must be based on the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in, dielectric constant anisotropy, etc. The required performance to make appropriate adjustments.

The preferable content of the compound represented by the said General formula (II-3) is 2-45 mass % with respect to the gross mass of the liquid-crystal composition of this invention, for example. Among them, for example, 5 to 45% by mass, 8 to 45% by mass, 11 to 45% by mass, 14 to 45% by mass, 17 to 45% by mass, 20 to 45% by mass, 23 to 45% by mass, 26 to 45% by mass are preferred. Mass %, 29-45 mass %, or 2-45 mass %, 2-40 mass %, 2-35 mass %, 2-30 mass %, 2-25 mass %, 2-20 mass %, 2-15 mass % %, 2 to 10% by mass.

Furthermore, the compound represented by the aforementioned general formula (II-3) is preferably at least one compound selected from, for example, the compound group represented by formula (12.1) to formula (12.3), preferably represented by formula (12.3). compound of.

[chem 74]

According to the properties required by the solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., the compound represented by formula (12.1) can be contained, the compound represented by formula (12.2) can be contained, and the compound represented by formula ( Both the compound represented by 12.1) and the compound represented by formula (12.2).

The content of the compound represented by formula (12.1) is preferably 3% by mass or more and 40% by mass or less, preferably 5% by mass or more and 40% by mass or less, preferably 7% by mass or more, based on the total mass of the liquid crystal composition of the present invention 40 mass % or less, preferably 9 mass % or more and 40 mass % or less, preferably 11 mass % or more and 40 mass % or less, preferably 12 mass % or more and 40 mass % or less, preferably 13 mass % or more and 40 mass % or less, preferably It is 18 mass % or more and 30 mass % or less, Preferably it is 21 mass % or more and 25 mass % or less.

In addition, the content of the compound represented by formula (12.2) is preferably 3% by mass or more and 40% by mass or less, preferably 5% by mass or more and 40% by mass or less, and preferably 8% by mass relative to the total mass of the liquid crystal composition of the present invention. % to 40% by mass, preferably 10% to 40% by mass, preferably 12% to 40% by mass, preferably 15% to 40% by mass, preferably 17% to 30% by mass , preferably not less than 19% by mass and not more than 25% by mass.

When both the compound represented by formula (12.1) and the compound represented by formula (12.2) are contained, the total mass of both compounds is preferably 15% by mass or more and 45% by mass relative to the total mass of the liquid crystal composition of the present invention. % or less, preferably 19 mass % to 45 mass %, preferably 24 mass % to 40 mass %, preferably 30 mass % to 35 mass %.

In addition, the content of the compound represented by the formula (12.3) is preferably 0.05 mass % to 2 mass %, preferably 0.1 mass % to 1 mass %, preferably 0.2 mass % with respect to the total mass of the liquid crystal composition of the present invention. % to 0.5% by mass. The compound represented by formula (12.3) may be an optically active compound.

Furthermore, the compound represented by the general formula (II-3) is preferably at least one compound selected from the compound group represented by the general formula (II-3-1), for example.

[chem 75]

In the aforementioned general formula (II-3-1), R ²⁵ represents an alkyl group having 1 to 5 carbon atoms, and R ²⁶ represents an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and it is preferable to contain 1 to 3 compounds from among these compounds in accordance with required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

The content of the compound represented by the aforementioned general formula (II-3-1) is preferably adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, and is preferably 1% by mass or more 24 Mass % or less, Preferably it is 4 mass % or more and 18 mass % or less, Preferably it is 6 mass % or more and 14 mass % or less.

Furthermore, the compound represented by the general formula (II-3-1) is preferably at least one compound selected from, for example, the compound group represented by the formula (13.1) to the formula (13.4), especially preferably the compound of the formula (13.3 ) represented by the compound.

[chem 76]

Or/in addition, the compound represented by the aforementioned general formula (II) is preferably at least one compound selected from the compound group represented by the general formula (II-4), for example.

[chem 77]

In the aforementioned general formula (II-4), R ²¹ and R ²² each independently represent an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms .

Only one kind of these compounds may be contained, or two or more kinds may be contained, and it is preferable to combine them appropriately according to the required performance. The types of compounds that can be combined are not particularly limited, and it is preferable to contain 1 to 2 types from these compounds, more preferably Contains 1 to 3 species.

The content of the compound represented by general formula (II-4) is preferably 1% by mass to 15% by mass, preferably 2% by mass to 15% by mass, preferably 3% by mass relative to the total mass of the liquid crystal composition of the present invention. Mass % to 15 mass %, preferably 4 mass % to 12 mass %, preferably 5 mass % to 7 mass %.

Furthermore, the compound represented by the general formula (II-4) is preferably at least one compound selected from, for example, the compound group represented by the formula (14.1) to the formula (14.5), especially preferably the compound of the formula (14.2) and /or a compound represented by formula (14.5).

[chem 78]

Or/in addition, the compound represented by the aforementioned general formula (L) is preferably at least one compound selected from the group of compounds represented by the general formula (III).

[chem 79]

In the aforementioned general formula (III), R ³¹ and R ³² each independently represent an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (III) is preferably 1 mass % or more and 25 mass % or less with respect to the total mass of the liquid crystal composition of the present invention in consideration of the required solubility, birefringence, etc., preferably It is contained in an amount of 2 mass % to 20 mass %, preferably 2 mass % to 15 mass %, preferably 2 mass % to 10 mass %, preferably 4 mass % to 6 mass %.

Furthermore, the compound represented by the aforementioned general formula (III) is preferably, for example, a compound represented by formula (15.1) and/or formula (15.2), especially preferably a compound represented by formula (15.1).

[chem 80]

Furthermore, the compound represented by the general formula (III) is preferably at least one compound selected from the group of compounds represented by the general formula (III-1).

[chem 81]

In the aforementioned general formula (III-1), R ³³ represents an alkenyl group having 2 to 5 carbon atoms, and R ³² represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (III-1) is preferably adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., relative to the total amount of the liquid crystal composition of the present invention The mass is preferably not less than 4% by mass and not more than 23% by mass, preferably not less than 6% by mass and not more than 18% by mass, and preferably not less than 10% by mass and not more than 13% by mass.

The compound represented by the aforementioned general formula (III-1) is preferably, for example, a compound represented by formula (16.1) and/or formula (16.2).

[chem 82]

Or/in addition, the compound represented by the aforementioned general formula (III) is preferably at least one compound selected from the group of compounds represented by the general formula (III-2).

[chem 83]

In the aforementioned general formula (III-2), R ³¹ represents an alkyl group having 1 to 5 carbon atoms, and R ³⁴ represents an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (III-2) is preferably adjusted according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., relative to the liquid crystal composition of the present invention The total mass is preferably not less than 4% by mass and not more than 23% by mass, preferably not less than 6% by mass and not more than 18% by mass, preferably not less than 10% by mass and not more than 13% by mass.

Furthermore, the compound represented by the general formula (III-2) is preferably at least one compound selected from the compound group represented by the formula (17.1) to the formula (17.3), especially preferably the compound represented by the formula (17.3). indicated compound.

[chem 84]

Or/in addition, the compound represented by the aforementioned general formula (L) is preferably at least one compound selected from the compound group represented by the general formula (IV).

[chem 85]

In the aforementioned general formula (IV), R ⁴¹ and R ⁴² each independently represent an alkyl group with 1 to 5 carbon atoms or an alkenyl group with 2 to 5 carbon atoms, and X ⁴¹ and X ⁴² each independently represent a hydrogen atom or fluorine atom.

The types of compounds that can be combined are not particularly limited, and are appropriately combined in accordance with required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Furthermore, in another embodiment of this invention, there are three types. In addition, in another embodiment of this invention, there are four types. Furthermore, in another embodiment of this invention, it is five types. Furthermore, in another embodiment of this invention, it is 6 or more types.

Furthermore, the compound represented by the aforementioned general formula (IV) is preferably at least one compound selected from the compound group represented by the general formula (IV-1), for example.

[chem 86]

In the aforementioned general formula (IV-1), R ⁴³ and R ⁴⁴ each independently represent an alkyl group having 1 to 5 carbon atoms.

The content of the compound represented by the aforementioned general formula (IV-1) must be based on the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in, dielectric constant anisotropy, etc. The required performance to make appropriate adjustments.

Content of the compound represented by the said General formula (IV-1) with respect to the gross mass of the liquid crystal composition of this invention is 1-35 mass %, for example in one Embodiment. In addition, in another embodiment of this invention, the said content is 1-30 mass %. In addition, in another embodiment of this invention, the said content is 1-26 mass %. In addition, in another embodiment of this invention, the said content is 1-22 mass %. In addition, in another embodiment of this invention, the said content is 1-10 mass %. In addition, in another embodiment of this invention, the said content is 1-8 mass %. In addition, in another embodiment of this invention, the said content is 1-6 mass %. In addition, in another embodiment of this invention, the said content is 1-3 mass %. In addition, in another embodiment of this invention, the said content is 1-2 mass %. In addition, in another embodiment of this invention, the said content is 2-26 mass %. In addition, in another embodiment of this invention, the said content is 3-26 mass %. In addition, in another embodiment of this invention, the said content is 11-26 mass %. In addition, in another embodiment of this invention, the said content is 20-26 mass %. In addition, in another embodiment of this invention, the said content is 2-8 mass %. In addition, in another embodiment of this invention, the said content is 2-6 mass %. In addition, in another embodiment of this invention, the said content is 2-3 mass %. In addition, in another embodiment of this invention, the said content is 11-22 mass %.

Furthermore, the compound represented by general formula (IV-1) is preferably at least one compound selected from the compound group represented by formula (18.1) to formula (18.9), for example.

[chem 87]

The types of compounds that can be combined are not particularly limited, and it is preferable to contain 1 to 3 types of these compounds, more preferably to contain 1 to 4 types. In addition, the wide molecular weight distribution of the selected compound is also effective for solubility, so for example, it is preferable to select one of the compounds represented by the formula (18.1) or (18.2), or one of the compounds represented by the formula (18.4) or (18.5). One kind, one kind derived from the compound represented by formula (18.6) or formula (18.7), one kind of compound derived from the compound represented by formula (18.8) or (18.9), and these are appropriately combined. Among them, compounds represented by formula (18.1), formula (18.3), formula (18.4), formula (18.6) and formula (18.9) are preferably contained.

In addition, when only one type is contained, the compound represented by the formula (18.4) is preferably selected, when two types are contained, the compounds represented by the formulas (18.1) and (18.6) are preferably selected, and when three types are contained, the compound represented by the formula (18.6) is preferably selected. Compounds represented by formulas (18.1), (18.4) and (18.6) are selected.

Or/in addition, the compound represented by the aforementioned general formula (IV) is preferably at least one compound selected from, for example, the group of compounds represented by the general formula (IV-2).

[chem 88]

In the aforementioned general formula (IV-2), R ⁴⁵ and R ⁴⁶ each independently represent an alkyl group with 1 to 5 carbon atoms or an alkenyl group with 2 to 5 carbon atoms, and at least one of them represents an alkyl group with 2 to 5 carbon atoms. Alkenyl; X ⁴¹ and X ⁴² each independently represent a hydrogen atom or a fluorine atom.

The types of compounds that can be combined are not particularly limited, and are appropriately combined according to required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

The content of the compound represented by the aforementioned general formula (IV-2) must be based on the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in, dielectric constant anisotropy, etc. The required performance to make appropriate adjustments. For example, it is preferable that content of the compound represented by said General formula (IV-2) is 1-20 mass % with respect to the gross mass of the liquid crystal composition of this invention. As a more preferable content, 1-11 mass %, 2-11 mass %, 4-11 mass %, 1-6 mass %, 1-4 mass %, 2-6 mass % are mentioned, for example.

When the liquid crystal composition containing only one compound as the compound represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned general formula (IV-2), the compound represented by the aforementioned formula (i), The total content of the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned general formula (IV-2) is preferably 10 to 40% by mass, more preferably 10 to 30% by mass, based on the total mass of the liquid crystal composition. The mass % is more preferably 15 to 30 mass %, particularly preferably 20 to 25 mass %.

Furthermore, the compound represented by the general formula (IV-2) is preferably at least one compound selected from, for example, the compound group represented by the formula (19.1) to the formula (19.8), wherein the compound of the formula (19.1) and/or Or a compound represented by formula (19.2).

[chem 89]

The wide molecular weight distribution of the compound selected as a component of the liquid crystal composition is also effective for solubility, so from the viewpoint of improving the solubility of the liquid crystal composition, it is preferable to select compounds represented by formula (19.1) or (19.2), for example, respectively. One of the compounds, one of the compounds represented by the formula (19.3) or (19.4), one of the compounds represented by the formula (19.5) or (19.6), one of the compounds represented by the formula (19.7) or (19.8) One compound of the indicated compounds, and these are appropriately combined.

When the compound represented by the aforementioned formula (19.1) is further contained in the liquid crystal composition containing at least two kinds of compounds as the compound represented by the aforementioned general formula (ii), the compound represented by the aforementioned formula (i), the aforementioned general formula The total content of the compound represented by (ii) and the compound represented by the aforementioned formula (19.1) is preferably 11 to 45% by mass, more preferably 20 to 40% by mass, and even more preferably 25 to 40% by mass, particularly preferably 33 to 39% by mass.

In the liquid crystal composition of the present invention, considering the solubility at low temperature, transition temperature, electrical reliability, etc., the content of the compound represented by the aforementioned formula (19.2) is preferably 1 with respect to the total mass of the liquid crystal composition of the present invention. Mass % to 20 mass %, preferably 1 mass % to 15 mass %, preferably 1 mass % to 11 mass %, preferably 1 mass % to 6 mass %, preferably 1 mass % to 4 mass % Below, it is preferable that it is 1 mass % or more and 2 mass % or less.

When the liquid crystal composition containing only one compound as the compound represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned formula (19.2), the compound represented by the aforementioned formula (i), the aforementioned general formula The total content of the compound represented by (ii) and the compound represented by the aforementioned formula (19.2) is preferably 10 to 40% by mass, more preferably 15 to 35% by mass, and even more preferably 15 to 30% by mass, particularly preferably 18 to 25% by mass.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (19.4), considering the solubility at low temperature, transition temperature, electrical reliability, etc., relative to the total mass of the liquid crystal composition of the present invention, preferably 3% by mass to 25% by mass, preferably 5% by mass to 20% by mass, preferably 5% by mass to 15% by mass, preferably 7% by mass to 10% by mass.

Furthermore, the compound represented by the general formula (L) is preferably at least one compound selected from the compound group represented by the general formula (V).

[chem 90]

In the aforementioned general formula (V), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and A ⁵¹ and ^{A52 each independently represent 1,4-cyclohexylene or 1,4-phenylene, Q5 represents a single bond or -COO-, X51 and X52 each independently represent} a fluorine atom or a hydrogen atom.

The types of compounds that can be combined are not particularly limited, and are appropriately combined according to required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. For example, in one embodiment of the present invention, there is only one type of compound to be used. Or in another embodiment of this invention, it is 2 types. Furthermore, in another embodiment of this invention, there are three types. In addition, in another embodiment of this invention, there are four types.

Content of the compound represented by the said General formula (V) is 1-25 mass % with respect to the gross mass of the said liquid-crystal composition of this invention, for example in one Embodiment. In addition, in another embodiment of this invention, the said content is 1-20 mass %. In addition, in another embodiment of this invention, the said content is 1-19 mass %. In addition, in another embodiment of this invention, the said content is 1-10 mass %. In addition, in another embodiment of this invention, the said content is 1-9 mass %. In addition, in another embodiment of this invention, the said content is 1-8 mass %. In addition, in another embodiment of this invention, the said content is 1-7 mass %. In addition, in another embodiment of this invention, the said content is 1-5 mass %. In addition, in another embodiment of this invention, the said content is 1-3 mass %. In addition, in another embodiment of this invention, the said content is 1-2 mass %. Furthermore, in another embodiment of this invention, the said content is 2-19 mass %. Furthermore, in another embodiment of this invention, the said content is 5-19 mass %. Furthermore, in another embodiment of this invention, the said content is 9-19 mass %. In addition, in another embodiment of this invention, the said content is 2-8 mass %. Furthermore, in another embodiment of this invention, the said content is 6-8 mass %.

Furthermore, the compound represented by general formula (V) is preferably a compound represented by general formula (V-1).

[chem 91]

In the aforementioned general formula (V-1), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, ^X51 and ^X52 each independently represent a fluorine atom or a hydrogen atom.

Furthermore, the compound represented by the aforementioned general formula (V-1) is preferably a compound represented by the general formula (V-1-1).

[chem 92]

In the aforementioned general formula (V-1-1), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms base.

Relative to the total mass of the liquid crystal composition of the present invention, it is preferable to contain the compound represented by the aforementioned general formula (V-1-1) in an amount of 1 mass % to 15 mass %, more preferably in a range of 1 mass % to 10 mass %, preferably It contains 3% by mass to 10% by mass, preferably 3% by mass to 7% by mass, preferably 3% by mass to 5% by mass, preferably 3% by mass to 4% by mass.

Furthermore, the compound represented by general formula (V-1-1) is preferably at least one compound selected from the compound group represented by formula (20.1) to formula (20.4), preferably represented by formula (20.2) compound.

[chem 93]

Or/in addition, the compound represented by the aforementioned general formula (V-1) is preferably a compound represented by general formula (V-1-2).

[chem 94]

In the aforementioned general formula (V-1-2), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms base.

Relative to the total mass of the liquid crystal composition of the present invention, the compound represented by the aforementioned general formula (V-1-2) preferably contains 1 mass % to 15 mass %, preferably contains 1 mass % to 10 mass %, preferably contains 1% by mass to 7% by mass, preferably 1% by mass to 5% by mass.

Furthermore, the compound represented by general formula (V-1-2) is preferably at least one compound selected from the compound group represented by formula (21.1) to formula (21.3), preferably represented by formula (21.1) compound of.

[chem 95]

With respect to the total mass of the liquid crystal composition of the present invention, the compound represented by the aforementioned formula (21.1) preferably contains 1% by mass to 15% by mass, preferably contains 1% by mass to 10% by mass, and preferably contains 1% by mass to 5% by mass. Mass % or less, Preferably it contains 1 mass % or more and 5 mass % or less, Preferably it contains 4 mass % or more and 5 mass % or less.

In the liquid crystal composition containing at least two compounds represented by the aforementioned general formula (ii), the compound represented by the aforementioned formula (i), the compound represented by the aforementioned general formula (ii), and the compound represented by the aforementioned formula (21.1) The total content of the compounds is preferably 10 to 45% by mass, more preferably 20 to 40% by mass, further preferably 25 to 35% by mass, particularly preferably 25 to 30% by mass, based on the total mass of the liquid crystal composition.

Or/in addition, the compound represented by the aforementioned general formula (V-1) is preferably a compound represented by general formula (V-1-3).

[chem 96]

In the aforementioned general formula (V-1-3), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms base.

Relative to the total mass of the liquid crystal composition of the present invention, the compound represented by the aforementioned general formula (V-1-3) preferably contains 1 mass % to 15 mass %, preferably contains 2 mass % to 15 mass %, preferably contains 3% by mass or more and 10% by mass or less, preferably 4% by mass or more and 8% by mass or less.

Furthermore, the compound represented by the general formula (V-1-3) is preferably at least one compound selected from the compound group represented by the formula (22.1) to the formula (22.3), more preferably the compound represented by the formula (22.1) indicated compound.

[chem 97]

Or/in addition, the compound represented by general formula (V) is preferably a compound represented by general formula (V-2).

[chem 98]

In the aforementioned general formula (V-2), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, ^X51 and ^X52 each independently represent a fluorine atom or a hydrogen atom.

The types of compounds that can be combined are not particularly limited, and are appropriately combined in accordance with required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 or more types.

Content of the compound represented by said General formula (V-2) is 1-30 mass % in one Embodiment with respect to the gross mass of the liquid-crystal composition of this invention, for example. Furthermore, in another embodiment of this invention, content of the said compound is 1-25 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 1-20 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 1-19 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 1-10 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 1-8 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 1-5 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 1-4 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 2-19 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 5-19 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 10-19 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 2-4 mass %. Furthermore, in another embodiment of this invention, content of the said compound is 6-8 mass %.

In the case of an embodiment in which the liquid crystal composition of the present invention is expected to have a high Tni, it is preferable to make the content of the compound represented by the aforementioned formula (V-2) slightly larger, and in the case of an embodiment in which a low viscosity is desired, it is preferable to make the content slightly higher. few.

Furthermore, the compound represented by the aforementioned general formula (V-2) is preferably a compound represented by the general formula (V-2-1).

[chem 99]

In the aforementioned general formula (V-2-1), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms base.

Relative to the total mass of the liquid crystal composition of the present invention, the compound represented by the aforementioned general formula (V-2-1) preferably contains 1 mass % to 25 mass %, preferably contains 1 mass % to 20 mass %, preferably contains 1% by mass to 19% by mass, preferably 1% by mass to 10% by mass, preferably 2% by mass to 19% by mass, preferably 6% by mass to 19% by mass, preferably 10% by mass to 19% by mass % or less, preferably 2 mass % or more and 4 mass % or less, preferably 6 mass % or more and 8 mass % or less.

Furthermore, the compound represented by the aforementioned general formula (V-2-1) is preferably at least one compound selected from the group of compounds represented by formula (23.1) to formula (23.4), preferably formula (23.1) and /or a compound represented by formula (23.2).

[chemical 100]

Or/in addition, the compound represented by the aforementioned general formula (V-2) is preferably a compound represented by general formula (V-2-2).

[Chemical 101]

In the aforementioned general formula (V-2-2), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms base.

Relative to the total mass of the liquid crystal composition of the present invention, the compound represented by the aforementioned general formula (V-2-2) preferably contains 2 mass % to 16 mass %, preferably contains 3 mass % to 13 mass %, preferably contains 4 mass % or more and 10 mass % or less.

Furthermore, the compound represented by the aforementioned general formula (V-2-2) is preferably at least one compound selected from the group of compounds represented by formula (24.1) to formula (24.4), preferably formula (24.1) and /or a compound represented by formula (24.2).

[chemical 102]

Or/in addition, the compound represented by the aforementioned general formula (V) is preferably a compound represented by general formula (V-3).

[chem 103]

In the aforementioned general formula (V-3), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and are appropriately combined according to required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Furthermore, in another embodiment of this invention, it is 3 or more types.

With respect to the total mass of the liquid crystal composition of the present invention, the compound represented by the aforementioned general formula (V-3) preferably contains 1 mass % to 16 mass %, preferably contains 1 mass % to 13 mass %, preferably contains 1 mass % % to 9% by mass, preferably 3% to 9% by mass.

Furthermore, the compound represented by the general formula (V-3) is preferably at least one compound selected from the compound group represented by the formula (25.1) to the formula (25.3).

[chemical 104]

Or/in addition, the compound represented by the aforementioned general formula (V) used in the liquid crystal composition of the present invention is preferably a compound represented by general formula (V-4).

[chemical 105]

In the aforementioned general formula (V-4), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

With respect to the total mass of the liquid crystal composition of the present invention, the compound represented by the aforementioned general formula (V-4) preferably contains 1 mass % to 15 mass %, preferably contains 2 mass % to 15 mass %, preferably contains 3 mass % % to 10% by mass, preferably 4% to 8% by mass.

Furthermore, the compound represented by general formula (V-4) is preferably at least one compound selected from the compound group represented by formula (25.11) to formula (25.13), more preferably represented by formula (25.13) compound.

[chemical 106]

Or/in addition, the compound represented by the aforementioned general formula (L) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (V'-5).

[chemical 107]

In the aforementioned general formula (V'-5), R ⁵¹ and R ⁵² each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms .

With respect to the total mass of the liquid crystal composition of the present invention, the compound represented by the aforementioned general formula (V'-5) preferably contains 1 mass % to 15 mass %, preferably contains 2 mass % to 15 mass %, preferably contains 2 It is contained in an amount of not less than 10% by mass, preferably not less than 5% by mass and not more than 10% by mass.

Furthermore, the compound represented by the general formula (V'-5) is preferably at least one compound selected from the group of compounds represented by the formula (25.21) to the formula (25.24), more preferably the compound of the formula (25.21) and/or Or a compound represented by formula (25.23).

[chemical 108]

The liquid crystal composition of the present invention may further contain at least one compound represented by the general formula (VI).

[chemical 109]

In the aforementioned general formula (VI), R ⁶¹ and R ⁶² each independently represent a straight chain alkyl group with 1 to 10 carbon atoms, a straight chain alkoxy group with 1 to 10 carbon atoms, or a straight chain group with 2 to 10 carbon atoms. Alkenyl.

The types of compounds that can be combined are not particularly limited, and it is preferable to mix 1 to 3 of these compounds according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, and more preferably to contain 1 to 4 types, particularly preferably 1 to 5 or more types.

The content of the compound represented by the general formula (VI) is preferably 0 to 35% by mass, preferably 0 to 25% by mass, preferably 0 to 15% by mass based on the total mass of the liquid crystal composition of the present invention.

As the compound represented by the aforementioned general formula (VI), specifically, the compounds listed below can be suitably used.

[chemical 110]

[chem 111]

[chem 112]

[chem 113]

The liquid crystal composition of the present invention may further contain at least one compound represented by the general formula (VII).

[chem 114]

In the aforementioned general formula (VII), R ⁷¹ and R ⁷² each independently represent a straight chain alkyl group with 1 to 10 carbon atoms, a straight chain alkoxy group with 1 to 10 carbon atoms, or a straight chain group with 4 to 10 carbon atoms. Alkenyl.

The types of compounds that can be combined are not particularly limited, and in accordance with the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to mix 1 to 3 kinds appropriately selected from these compounds, More preferably, 1 to 4 types are blended, and it is particularly preferable to contain 1 to 5 or more types.

The content of the compound represented by the general formula (VII) is preferably 0 to 35% by mass, more preferably 0 to 25% by mass, and preferably 0 to 15% by mass based on the total mass of the liquid crystal composition of the present invention.

As the compound represented by the aforementioned general formula (VII), specifically, the compounds listed below can be suitably used.

[chem 115]

It is also preferable that the liquid crystal composition of the present invention further contains at least one compound represented by the following general formula (M).

[chem 116]

In the aforementioned general formula (M), R ^M1 represents an alkyl group having 1 to 8 carbon atoms, and one or more non-adjacent -CH ₂ - in the alkyl group may be each independently replaced by -CH=CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-substituted,

PM means 0, 1, 2, 3 or 4,

C ^M1 and C ^M2 each independently represent a group selected from the group consisting of the following groups:

(d) 1,4-cyclohexylene (in this group, one -CH ₂ - or two or more non-adjacent -CH ₂ - may be substituted with -O- or -S-), and

(e) 1,4-Phenylene (one -CH= present in this group or two or more non-adjacent -CH= may be substituted with -N=)

The above-mentioned group (d) and group (e) can be independently substituted by cyano, fluorine atom or chlorine atom,

K ^M1 and K ^M2 each independently represent a single bond, -CH ₂ CH ₂ -, -(CH ₂ ) ₄ -, -OCH ₂ -, -CH ₂ O-, -OCF ₂ -, -CF ₂ O-, - COO-, -OCO- or -C≡C-,

When PM is 2, 3 or 4 and there are multiple K ^M1 , they may be the same or different; when PM is 2, 3 or 4 and there are multiple C ^M2 , they may be the same or different;

X ^M1 and X ^M3 each independently represent a hydrogen atom, a chlorine atom or a fluorine atom,

X ^M2 represents a hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a fluoromethoxy group, a difluoromethoxy group, a trifluoromethoxy group or a 2,2,2-trifluoroethyl group. However, the compound represented by the aforementioned general formula (i) is excluded.

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Furthermore, in another embodiment of this invention, there are three types. Still further, in another embodiment of the present invention, there are four types. Furthermore, in another embodiment of this invention, it is five types. In addition, in another embodiment of this invention, there are six types. Furthermore, in another embodiment of this invention, it is 7 or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (M) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in, medium The required properties such as electrical constant anisotropy can be adjusted appropriately.

Content of the compound represented by the said general formula (M) is 1-70 mass % with respect to the gross mass of the liquid crystal composition of this invention in one Embodiment of this invention. Furthermore, for example, in another embodiment of this invention, content of the said compound is 1-65 mass %. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 60% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 55% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 51% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 47% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 42% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 40% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 39% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 37% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 35% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 33% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 32% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 31% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 30% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 29% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 25% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 24% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 19% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 10% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 9% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 8% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 3 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 9 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 19 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 20 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 22 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 26 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 28 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 29 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 30 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 31 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 32 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 33 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 39 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 42 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 46 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 48 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 52 to 54% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 3 to 8% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 9 to 10% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 19 to 25% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 22 to 24% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 26 to 29% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 28 to 35% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 28 to 33% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 31 to 32% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 32 to 33% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 33 to 42% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 39 to 42% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 42 to 47% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 48 to 51% by mass.

When the viscosity of the liquid crystal composition of the present invention is kept low and a liquid crystal composition having a fast response speed is required, it is preferable to make the above-mentioned lower limit slightly lower and the upper limit slightly lower. In addition, when keeping Tni of the liquid crystal composition of the present invention high and a liquid crystal composition having good temperature stability is required, it is preferable to make the above-mentioned lower limit value slightly lower and the upper limit value slightly lower. In addition, when it is desired to increase the dielectric constant anisotropy in order to keep the driving voltage low, it is preferable to make the above-mentioned lower limit value slightly higher and the upper limit value to be slightly higher.

When R ^M1 has a phenyl (aromatic) bonded ring structure, it is preferably a straight-chain alkyl group with 1 to 5 carbon atoms, a straight-chain alkoxy group with 1 to 4 carbon atoms, and a carbon In the case of an alkenyl group having 4 to 5 atoms, the bonded ring structure is a saturated ring structure such as cyclohexane, pyran, and dioxane, preferably a straight-chain alkyl group having 1 to 5 carbon atoms, a straight-chain Alkoxy groups having 1 to 4 carbon atoms and straight-chain alkenyl groups having 2 to 5 carbon atoms.

When the compound represented by general formula (M) requires the chemical stability of a liquid crystal composition, it is preferable not to have a chlorine atom in the molecule. Furthermore, the content of the compound having a chlorine atom in the liquid crystal composition is preferably 0 to 5% by mass, preferably 0 to 3% by mass, preferably 0 to 1% by mass, relative to the total mass of the liquid crystal composition of the present invention, Preferably it is 0-0.5 mass %, Preferably it does not contain substantially. Substantially not containing means that only compounds containing chlorine atoms unintentionally, such as compounds generated as impurities during compound production, are mixed into the liquid crystal composition.

The compound represented by the general formula (M) is preferably, for example, at least one compound selected from the group of compounds represented by the general formula (VIII).

[chem 117]

In the aforementioned general formula (VIII), R ⁸ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and X ⁸¹ to X ⁸⁵ are each independently represents a hydrogen atom or a fluorine atom, and Y ⁸ represents a fluorine atom or —OCF ₃ . However, the compound represented by the aforementioned formula (i) is excluded.

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Furthermore, in another embodiment of this invention, it is 3 or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (VIII) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in, medium The required properties such as electrical constant anisotropy can be adjusted appropriately.

Content of the compound represented by the said General formula (VIII) with respect to the gross mass of the liquid-crystal composition of this invention is 1-25 mass %, for example in one Embodiment of this invention. Furthermore, for example, in another embodiment of this invention, content of the said compound is 1-20 mass %. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 15% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 10% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 7% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 6% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 5% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 4% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 3 to 7% by mass. For example, in still another embodiment of the present invention, the content of the aforementioned compound is 3 to 6% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 4 to 7% by mass.

When the viscosity of the liquid crystal composition of the present invention is kept low and a liquid crystal composition having a fast response speed is required, it is preferable to make the above-mentioned lower limit slightly lower and the upper limit slightly lower. In addition, when keeping Tni of the liquid crystal composition of the present invention high and a liquid crystal composition having good temperature stability is required, it is preferable to make the above-mentioned lower limit value slightly lower and the upper limit value slightly lower. In addition, when it is desired to increase the dielectric constant anisotropy in order to keep the driving voltage low, it is preferable to make the above-mentioned lower limit value slightly higher and the upper limit value to be slightly higher.

Furthermore, the compound represented by general formula (VIII) is preferably a compound represented by general formula (VIII-1).

[chem 118]

In the aforementioned general formula (VIII-1), R ⁸ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. However, the compound represented by the aforementioned formula (i) is excluded.

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 or more types.

Furthermore, the compound represented by the aforementioned general formula (VIII-1), specifically, is preferably at least one compound selected from the group of compounds represented by formula (26.1), formula (26.3), and formula (26.4). , preferably a compound represented by formula (26.1).

[chem 119]

The content of the compound represented by the aforementioned formula (26.1) is preferably 1% by mass or more relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc. 20 mass % or less, more preferably 1 mass % or more and 15 mass % or less, still more preferably 1 mass % or more and 10 mass % or less, preferably 1 mass % or more and 7 mass % or less. Among them, for example, 1 mass % to 6 mass %, 1 mass % to 5 mass %, 3 mass % to 7 mass %, 3 mass % to 6 mass %, 4 mass % to 7 mass % are preferable.

Or/in addition, the compound represented by the aforementioned general formula (VIII) is preferably a compound represented by the general formula (VIII-2).

[chemical 120]

In the aforementioned general formula (VIII-2), R ⁸ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Or, still another embodiment of this invention is 3 or more types.

The content of the compound represented by the aforementioned general formula (VIII-2), considering the solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., is preferably 2.5% relative to the total mass of the liquid crystal composition of the present invention. Mass % to 25 mass %, preferably 8 mass % to 25 mass %, preferably 10 mass % to 20 mass %, preferably 12 mass % to 15 mass %.

Furthermore, the compound represented by the general formula (VIII-2) is preferably at least one compound selected from the compound group represented by the formula (27.1) to the formula (27.4), preferably a compound represented by the formula (27.2) .

[chem 121]

Or/in addition, the compound represented by the aforementioned general formula (VIII) is preferably a compound represented by the general formula (VIII-3).

[chemical 122]

In the aforementioned general formula (VIII-3), R ⁸ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 or more types.

The content of the compound represented by the aforementioned general formula (VIII-3) is preferably 0.5 relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc. Mass % to 15 mass %, preferably 0.5 mass % to 10 mass %, preferably 0.5 mass % to 5 mass %, preferably 1 mass % to 5 mass %.

Furthermore, the compound represented by the aforementioned general formula (VIII-3), specifically, is preferably at least one compound selected from the group of compounds represented by the formula (26.11) to the formula (26.14), preferably the compound of the formula (26.11 ), and/or a compound represented by formula (26.12), more preferably a compound represented by formula (26.12).

[chem 123]

Or/in addition, the compound represented by the aforementioned general formula (VIII) is preferably a compound represented by the general formula (VIII-4).

[chem 124]

In the aforementioned general formula (VIII-4), R ⁸ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited, and are preferably used alone or in combination of two or more in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (VIII-4) may be appropriately adjusted in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (VIII-4) is 1 to 25% by mass in one embodiment of the present invention, and 2% in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. ~ 25% by mass, 3-20% by mass in still another embodiment, 3-13% by mass of the aforementioned compound in yet another embodiment, 3-10% by mass in yet another embodiment. % by mass, and in yet another embodiment, the content of the aforementioned compound is 1 to 5% by mass.

Furthermore, the compound represented by the general formula (VIII-4) used in the liquid crystal composition of the present invention is preferably at least 1 compound, Among them, it is more preferable to contain the compound represented by formula (26.24).

[chem 125]

Furthermore, the compound represented by the general formula (M) is preferably, for example, at least one compound selected from the group of compounds represented by the general formula (IX).

[chem 126]

In the aforementioned general formula (IX), R ⁹ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and X ⁹¹ and X ⁹² are each independently represents a hydrogen atom or a fluorine atom, Y ⁹ represents a fluorine atom, a chlorine atom or -OCF ₃ , and U ⁹ represents a single bond, -COO- or -CF ₂ O-.

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Furthermore, in another embodiment of this invention, there are three types. Still further, in another embodiment of the present invention, there are four types. Furthermore, in another embodiment of this invention, it is five types. Furthermore, in another embodiment of this invention, it is 6 or more types.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned general formula (IX) must be determined according to the solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop marks, burn-in, medium The required properties such as electrical constant anisotropy can be adjusted appropriately.

Content of the compound represented by the said general formula (IX) with respect to the gross mass of the liquid-crystal composition of this invention is 1-50 mass %, for example in one Embodiment of this invention. Furthermore, for example, in another embodiment of this invention, content of the said compound is 1-45 mass %. For example, content of the said compound in still another embodiment of this invention is 1-42 mass %. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 41% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 28% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 23% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 18% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 17% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 16% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 15% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 12% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 11% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 9% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 8% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 7% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 6% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 5% by mass. For example, content of the said compound in still another embodiment of this invention is 3-42 mass %. For example, content of the said compound in still another embodiment of this invention is 5-42 mass %. For example, content of the said compound in still another embodiment of this invention is 6-42 mass %. For example, content of the said compound in still another embodiment of this invention is 7-42 mass %. For example, content of the said compound in still another embodiment of this invention is 8-42 mass %. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 9 to 42% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 12 to 42% by mass. For example, content of the said compound in still another embodiment of this invention is 14-42 mass %. For example, content of the said compound in still another embodiment of this invention is 15-42 mass %. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 16 to 42% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 17 to 42% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 18 to 42% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 23 to 42% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 37 to 42% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 3 to 8% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 8 to 12% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 8 to 11% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 9 to 17% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 9 to 12% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 14 to 18% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 17 to 20% by mass. For example, content of the said compound in still another embodiment of this invention is 18-28 mass %. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 37 to 41% by mass.

When the viscosity of the liquid crystal composition of the present invention is kept low and a liquid crystal composition having a fast response speed is required, it is preferable to make the above-mentioned lower limit slightly lower and the upper limit slightly lower. In addition, when the Tni of the liquid crystal composition of this invention is kept high and when the liquid crystal composition which is hard to generate|occur|produce screen burning is required, it is preferable to make the above-mentioned lower limit value slightly lower, and to make the upper limit value slightly lower. In addition, when it is desired to increase the dielectric constant anisotropy in order to keep the driving voltage low, it is preferable to make the above-mentioned lower limit value slightly higher and the upper limit value to be slightly higher.

Furthermore, the compound represented by the aforementioned general formula (IX) is preferably a compound represented by general formula (IX-1).

[chem 127]

In the aforementioned general formula (IX-1), R represents an alkyl group with 1 to ⁵ carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and ^X represents a hydrogen atom or A fluorine atom, Y ⁹ represents a fluorine atom or -OCF ₃ .

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Furthermore, in another embodiment of this invention, there are three types. Furthermore, in another embodiment of this invention, it is 4 or more types.

Furthermore, the compound represented by the aforementioned general formula (IX-1) is preferably a compound represented by general formula (IX-1-1).

[chem 128]

In the aforementioned general formula (IX-1-1), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 types. Furthermore, in another embodiment of this invention, it is 3 or more types.

The content of the compound represented by the aforementioned general formula (IX-1-1) is appropriately adjusted according to the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

Content of the compound represented by said General formula (IX-1-1) is 1-35 mass %, for example in one Embodiment of this invention with respect to the gross mass of the liquid-crystal composition of this invention. Furthermore, for example, in another embodiment of this invention, content of the said compound is 1-30 mass %. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 25% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 19% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 17% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 16% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 15% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 12% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 10% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 8% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 7% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 1 to 5% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 2 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 3 to 20% by mass. For example, content of the said compound in still another embodiment of this invention is 5-20 mass %. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 8 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 9 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 12 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 15 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 17 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 18 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 3 to 8% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 5 to 10% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 8 to 11% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 9 to 17% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 15 to 17% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 15 to 16% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 17 to 20% by mass. For example, in yet another embodiment of the present invention, the content of the aforementioned compound is 18 to 19% by mass.

Furthermore, the compound represented by the aforementioned general formula (IX-1-1) is preferably at least one compound selected from the group of compounds represented by formula (28.1) to formula (28.5), preferably formula (28.3) and /or a compound represented by formula (28.5).

[chem 129]

In the liquid crystal composition of the present invention, the content of the compound represented by formula (28.3) is preferably 1% by mass or more and 30% by mass or less, preferably 1% by mass or more and 25% by mass relative to the total amount of the liquid crystal composition of the present invention. Below, it is preferable that it is 1 mass % or more and 20 mass % or less. Among them, preferably 1 mass % to 18 mass %, 1 mass % to 16 mass %, 1 mass % to 12 mass %, 1 mass % to 11 mass %, 1 mass % to 10 mass %, 1 Mass % to 8 mass %, 1 mass % to 4 mass %, 3 mass % to 18 mass %, 5 mass % to 18 mass %, 7 mass % to 18 mass %, 8 mass % to 18 mass % % or less, 11 mass % or more, 18 mass % or less, 3 mass % or more, 8 mass % or less, 5 mass % or more, 11 mass % or less, 5 mass % or more, 8 mass % or less, 8 mass % or more, 12 mass % or less, 8 mass % % to 10% by mass, and 11% to 16% by mass.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (28.5), considering the solubility at low temperature, transition temperature, electrical reliability, etc., is preferably 1% by mass to 30% by mass, preferably 1% by mass to 25% by mass, preferably 1% by mass to 20% by mass. Among them, preferably 2 mass % to 20 mass %, 6 mass % to 20 mass %, 13 mass % to 20 mass %, 17 mass % to 2 mass %, 13 mass % to 17 mass %.

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii) and further contains a compound represented by the aforementioned formula (28.5), the compound represented by the aforementioned formula (i) , The total content of the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (28.5) is preferably 10 to 50% by mass, more preferably 20 to 45% by mass relative to the total mass of the liquid crystal composition of the present invention. The mass % is more preferably 30 to 45 mass %, particularly preferably 35 to 40 mass %.

When the liquid crystal composition of the present invention contains at least two compounds represented by the aforementioned general formula (ii), and further contains a compound represented by the aforementioned formula (28.5), the compound represented by the aforementioned formula (i), the aforementioned The total content of the compound represented by the general formula (ii) and the compound represented by the aforementioned formula (28.5) is preferably 10 to 55% by mass relative to the total mass of the liquid crystal composition of the present invention, preferably 20 to 50% by mass in one embodiment. 25% by mass, preferably 35 to 40% by mass in another embodiment, and preferably 45 to 55% by mass in yet another embodiment.

Or/in addition, the compound represented by the aforementioned general formula (IX-1) is preferably a compound represented by general formula (IX-1-2).

[chemical 130]

In the aforementioned general formula (IX-1-2), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not limited, but in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., a combination of 1 to 3 compounds is preferable, and 1 to 4 compounds are more preferably combined.

The content of the compound represented by the aforementioned general formula (IX-1-2) is preferably 1% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. More than 30% by mass, preferably 5% by mass to 30% by mass, preferably 8% by mass to 30% by mass, preferably 10% by mass to 25% by mass, preferably 14% by mass to 22% by mass, Preferably it is 16 mass % or more and 20 mass % or less.

Furthermore, the compound represented by the aforementioned general formula (IX-1-2) is preferably at least one compound selected from the group of compounds represented by formula (29.1) to formula (29.4), preferably formula (29.2) and /or a compound represented by formula (29.4).

[chem 131]

Or/in addition, the compound represented by the aforementioned general formula (IX) is preferably a compound represented by general formula (IX-2).

[chem 132]

In the aforementioned general formula (IX-2), R ⁹ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and X ⁹¹ and X ⁹² are each independently represent a hydrogen atom or a fluorine atom, and Y ⁹ represents a fluorine atom, a chlorine atom or -OCF ₃ .

The types of compounds that can be combined are not limited, and they are used in appropriate combination according to the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, 1 type, in another embodiment, 2 types, in yet another embodiment, 3 types, in yet another embodiment, 4 types, and in yet another embodiment In another embodiment, 5 types are used, and in another embodiment, 6 or more types are combined.

Furthermore, the compound represented by general formula (IX-2) is preferably a compound represented by general formula (IX-2-1).

[chem 133]

In the aforementioned general formula (IX-2-1), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not limited, and it is preferable to combine 1 to 3 compounds in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the general formula (IX-2-1) can be appropriately adjusted in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, in one Embodiment of this invention, content of the compound represented by said General formula (IX-2-1) is 1-25 mass % with respect to the gross mass of the liquid crystal composition of this invention. In another embodiment, content of the said compound is 1-20 mass %. In still another embodiment, the content of the aforementioned compound is 1 to 15% by mass. In yet another embodiment, the content of the aforementioned compound is 1 to 10% by mass. In yet another embodiment, the content of the aforementioned compound is 1 to 5% by mass. In yet another embodiment, the content of the aforementioned compound is 1 to 4% by mass.

Furthermore, the compound represented by general formula (IX-2-1) is preferably at least one compound selected from the compound group represented by formula (30.1) to formula (30.4), preferably formula (30.1) and/or Or a compound represented by formula (30.2).

[chem 134]

Or/in addition, the compound represented by the aforementioned general formula (IX-2) is preferably a compound represented by general formula (IX-2-2).

[chem 135]

In the aforementioned general formula (IX-2-2), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not limited, but in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 to 3 types, and more preferably to combine 1 to 4 types.

The content of the compound represented by the aforementioned general formula (IX-2-2) is appropriately adjusted according to the embodiment in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (IX-2-2) is 1 to 30 mass % in one embodiment of the present invention, and 1 to 30 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. 1 to 25% by mass, 1 to 20% by mass in yet another embodiment, 1 to 17% by mass in yet another embodiment, 1 to 16% by mass in yet another embodiment, and yet another embodiment In an embodiment, it is 1 to 12 mass %, in yet another embodiment, it is 1 to 11 mass %, in yet another embodiment, it is 1 to 10 mass %, and in yet another embodiment, it is 1 to 9 mass % , 2 to 17% by mass in yet another embodiment, 6 to 17% by mass in yet another embodiment, 8 to 17% by mass in yet another embodiment, and 8 to 17% by mass in yet another embodiment 9 to 17% by mass, 14 to 17% by mass in yet another embodiment, 14 to 16% by mass in yet another embodiment, 2 to 9% by mass in yet another embodiment, and In still another embodiment, it is 6-10 mass %, in yet another embodiment, it is 8-11 mass %, and in yet another embodiment, it is 9-12 mass %.

Furthermore, the compound represented by the general formula (IX-2-2) is preferably at least one compound selected from the compound group represented by the formula (31.1) to the formula (31.4), preferably the compound of the formula (31.2) to the formula At least one compound selected from the group of compounds represented by (31.4) is preferably a compound represented by formula (31.2).

[chem 136]

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (31.2) is preferably 1% by mass or more and 30% by mass or less, preferably 1% by mass or 25% by mass relative to the total mass of the liquid crystal composition of the present invention. Below, it is preferable that it is 1 mass % or more and 20 mass % or less. Among them, for example, preferably 2 mass % to 20 mass %, 5 mass % to 20 mass %, 11 mass % to 20 mass %, 14 mass % to 20 mass %, 14 mass % to 16 mass % .

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii) and further contains a compound represented by the aforementioned formula (31.2), the compound represented by the aforementioned formula (i) , The total content of the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (31.2) is preferably 10 to 40% by mass, more preferably 15 to 35% by mass relative to the total mass of the liquid crystal composition of the present invention. % by mass is more preferably 20 to 35% by mass, particularly preferably 30 to 35% by mass.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (31.4) is preferably 1% by mass or more and 20% by mass or less, preferably 1% by mass or 15% by mass relative to the total mass of the liquid crystal composition of the present invention. Below, it is preferably not less than 1 mass % and not more than 10 mass %, preferably not less than 1 mass % and not more than 5 mass %.

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii) and further contains a compound represented by the aforementioned formula (31.4), the compound represented by the aforementioned formula (i) , The total content of the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (31.4) is preferably 5 to 40% by mass, more preferably 5 to 30% by mass relative to the total mass of the liquid crystal composition of the present invention. The mass % is more preferably 5 to 20 mass %, particularly preferably 10 to 15 mass %.

Or/in addition, the compound represented by the aforementioned general formula (IX-2) is preferably a compound represented by general formula (IX-2-3).

[chem 137]

In the aforementioned general formula (IX-2-3), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not limited, and it is preferable to combine 1 or 2 compounds in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (IX-2-3) is preferably 1% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. Above 30% by mass, more preferably 3% by mass to 20% by mass, still more preferably 6% by mass to 15% by mass, more preferably 8% by mass to 10% by mass.

Furthermore, the compound represented by general formula (IX-2-3) is preferably at least one compound selected from the compound group represented by formula (32.1) to formula (32.4), preferably formula (32.2) and/or Or a compound represented by formula (32.4).

[chem 138]

Or/in addition, the compound represented by the aforementioned general formula (IX-2) is preferably a compound represented by general formula (IX-2-4).

[chem 139]

In the aforementioned general formula (IX-2-4), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (IX-2-4) is preferably 1% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. More than 25% by mass, preferably 1% by mass to 20% by mass, preferably 1% by mass to 15% by mass, preferably 1% by mass to 12% by mass, preferably 5% by mass to 12% by mass, Preferably it is 7 mass % or more and 12 mass % or less.

Furthermore, the compound represented by general formula (IX-2-4) is preferably at least one compound selected from the compound group represented by formula (33.1) to formula (33.6), preferably formula (33.1) and/or Or a compound represented by formula (33.3).

[chem 140]

The content of the compound represented by the aforementioned formula (33.3) is appropriately adjusted according to the embodiment in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence, relative to the total mass of the liquid crystal composition of the present invention , preferably 1 to 20 mass%, preferably 1 to 15 mass%, preferably 1 to 10 mass%, preferably 4 to 7 mass%.

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii) and further contains a compound represented by the aforementioned formula (33.3), the compound represented by the aforementioned formula (i) , The total content of the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (33.3) is preferably 5 to 50% by mass, more preferably 20 to 50% by mass, relative to the total mass of the liquid crystal composition of the present invention. % by mass is more preferably 30 to 50% by mass, particularly preferably 40 to 45% by mass.

Or/in addition, the compound represented by the aforementioned general formula (IX-2) is preferably a compound represented by general formula (IX-2-5).

[chem 141]

In the aforementioned general formula (IX-2-5), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not limited, and they are used in appropriate combination according to the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, it is 1 type, in another embodiment, it is 2 types, in yet another embodiment, it is 3 types, and in yet another embodiment, it is 4 or more types.

The content of the compound represented by the aforementioned general formula (IX-2-5) is appropriately adjusted according to the embodiment in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (IX-2-5) is 1 to 40 mass % in one embodiment of the present invention, and 1 to 40 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. 1 to 35% by mass, 5 to 35% by mass in yet another embodiment, 8 to 35% by mass in yet another embodiment, 12 to 35% by mass in yet another embodiment, and 12 to 35% by mass in yet another embodiment In another embodiment, it is 30-35 mass %, and in still another embodiment, it is 8-12 mass %.

When the viscosity of the liquid crystal composition of the present invention is kept low and a liquid crystal composition having a fast response speed is required, it is preferable to make the above-mentioned lower limit slightly lower and the upper limit slightly lower. In addition, when the Tni of the liquid crystal composition of this invention is kept high and when the liquid crystal composition which is hard to generate|occur|produce screen burning is required, it is preferable to make the above-mentioned lower limit value slightly lower, and to make the upper limit value slightly lower. In addition, when it is desired to increase the dielectric constant anisotropy in order to keep the driving voltage low, it is preferable to make the above-mentioned lower limit value slightly higher and the upper limit value to be slightly higher.

Furthermore, the compound represented by general formula (IX-2-5) is preferably at least one compound selected from the compound group represented by formula (34.1) to formula (34.7), more preferably formula (34.1), The compound represented by formula (34.2), formula (34.3) and/or formula (34.5) is more preferably a compound represented by formula (34.1) and/or formula (34.5).

[chem 142]

The content of the compound represented by the aforementioned formula (34.1) is appropriately adjusted according to the embodiment in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned formula (34.1) is 0.5 mass % or more and 20 mass % or less in one embodiment of the present invention, and 0.5 mass % or less in another embodiment, with respect to the total mass of the liquid crystal composition of the present invention. Mass % to 15 mass %, in another embodiment, 0.5 mass % to 10 mass %, in yet another embodiment, 5 mass % to 10 mass %, in yet another embodiment, 8 Mass % or more and 10 mass % or less.

The content of the compound represented by the aforementioned formula (34.5) is appropriately adjusted according to the embodiment in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned formula (34.5) is 0.5 mass % or more and 20 mass % or less in one embodiment of the present invention, and 0.5 mass % or less in another embodiment, with respect to the total mass of the liquid crystal composition of the present invention. Mass % to 15 mass %, in another embodiment, 0.5 mass % to 10 mass %, in yet another embodiment, 0.5 mass % to less than 10 mass %, in yet another embodiment, 5 mass % or more and 10 mass % or less.

In the case where the liquid crystal composition of the present invention contains at least two compounds represented by the aforementioned general formula (ii), and further contains at least two compounds represented by the aforementioned general formula (IX-2-5), the aforementioned formula ( The total content of the compound represented by i), the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned general formula (IX-2-5) relative to the total mass of the liquid crystal composition of the present invention is preferably 10 ~45% by mass, more preferably 20-45% by mass, still more preferably 30-45% by mass, particularly preferably 37-43% by mass.

Preferably, the compound represented by the aforementioned formula (34.1) and the compound represented by the aforementioned formula (34.5) are contained as at least two compounds represented by the aforementioned general formula (IX-2-5).

Or/in addition, the compound represented by the aforementioned general formula (IX) is preferably a compound represented by general formula (IX-3).

[chem 143]

In the aforementioned general formula (IX-3), R ⁹ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkoxy group with 1 to 4 carbon atoms, and X ⁹¹ and X ⁹² are each independently represent a hydrogen atom or a fluorine atom, and Y ⁹ represents a fluorine atom, a chlorine atom or -OCF ₃ .

Furthermore, the compound represented by general formula (IX-3) is preferably a compound represented by general formula (IX-3-1).

[chem 144]

In the aforementioned general formula (IX-3-1), R ⁹ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not limited, and it is preferable to combine 1 or 2 compounds in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (IX-3-1) is preferably 3% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. 30% by mass or more, preferably 7% by mass or more and 30% by mass or less, preferably 13% by mass or more and 20% by mass or less, preferably 15% by mass or more and 18% by mass or less.

Furthermore, the compound represented by general formula (IX-3-1) is preferably at least one compound selected from the compound group represented by formula (35.1) to formula (35.4), preferably formula (35.1) and/or Or a compound represented by formula (35.2).

[chem 145]

Or/in addition, the compound represented by the aforementioned general formula (M) is preferably a compound represented by general formula (X).

[chem 146]

In the aforementioned general formula (X), X ¹⁰¹ to X ¹⁰⁴ each independently represent a fluorine atom or a hydrogen atom, Y ¹⁰ represents a fluorine atom, a chlorine atom, or -OCF ₃ , Q ¹⁰ represents a single bond or -CF ₂ O-, R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, A ¹⁰¹ and A ¹⁰² each independently represent 1,4-cyclohexylene, 1,4-phenylene, or any group represented by the following formula, the hydrogen atom on the 1,4-phenylene may be substituted by a fluorine atom.

[chem 147]

Compounds that can be combined are not particularly limited, and are appropriately combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, it is 1 type. Moreover, in another embodiment of this invention, it is two types. In yet another embodiment, there are three types. In yet another embodiment, there are four types. In yet another embodiment, there are five or more types.

The content of the compound represented by the aforementioned general formula (X) is appropriately adjusted according to the embodiment in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. For example, the content of the compound represented by the aforementioned general formula (X) is 1 to 35 mass % in one embodiment of the present invention, and 1 to 30 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. % by mass, 1 to 25% by mass in yet another embodiment, 1 to 24% by mass in yet another embodiment, 1 to 20% by mass in yet another embodiment, and yet another embodiment 1 to 19% by mass in yet another embodiment, 1 to 16% by mass in yet another embodiment, 1 to 12% by mass in yet another embodiment, 1 to 11% by mass in yet another embodiment, In yet another embodiment, it is 1 to 10 mass%, in yet another embodiment, the content is 1 to 9 mass%, in yet another embodiment, the content is 1 to 8 mass%, and in yet another embodiment In another embodiment, the content is 1 to 7% by mass, in yet another embodiment, the content is 1 to 3% by mass, in yet another embodiment, the content is 3 to 24 mass%, and in yet another embodiment, the content is 5 to 5% by mass. 24% by mass, in yet another embodiment, the content is 6 to 24% by mass, in yet another embodiment, the content is 8 to 24% by mass, in yet another embodiment, the content is 11 to 24% by mass, and in yet another embodiment, the content is 11 to 24% by mass. In yet another embodiment, the content is 13 to 24% by mass, in yet another embodiment, the content is 15 to 24% by mass, in yet another embodiment, the content is 17 to 24% by mass, and in yet another embodiment In another embodiment, the content is 3 to 7% by mass, in yet another embodiment, the content is 5 to 10% by mass, in yet another embodiment, the content is 6 to 9 mass%, and in yet another embodiment, the content is 6 to 9% by mass. 8% by mass, in yet another embodiment, the content is 8 to 11% by mass, in yet another embodiment, the content is 11 to 19% by mass, in yet another embodiment, the content is 11 to 12% by mass, and in yet another embodiment, the content is 11 to 12% by mass. In yet another embodiment, the content is 13 to 16% by mass, in yet another embodiment, the content is 15 to 19% by mass, and in yet another embodiment, the content is 17 to 20% by mass.

When keeping the viscosity of the liquid crystal composition of the present invention low and requiring a quick liquid crystal composition, it is preferable to make the above-mentioned lower limit slightly lower and the upper limit slightly lower. Furthermore, when the liquid crystal composition which does not generate|occur|produce easily burn-in is required, it is preferable to make the above-mentioned lower limit a little lower, and to make an upper limit a little lower. In addition, when it is desired to increase the dielectric constant anisotropy in order to keep the driving voltage low, it is preferable to make the above-mentioned lower limit value slightly higher and the upper limit value to be slightly higher.

The compound represented by the aforementioned general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by general formula (X-1).

[chem 148]

In the aforementioned general formula (X-1), X ¹⁰¹ to X ¹⁰³ each independently represent a fluorine atom or a hydrogen atom, and R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or a carbon atom Alkoxy groups with numbers 1 to 4.

Compounds that can be combined are not particularly limited, and are appropriately combined according to the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, it is 1 type. Moreover, in another embodiment of this invention, it is two types. In yet another embodiment, there are three types. In yet another embodiment, there are four types. In yet another embodiment, there are five or more types.

The content of the compound represented by the aforementioned general formula (X-1) may be appropriately adjusted in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (X-1) is 1 to 20 mass % in one embodiment of the present invention, and 1 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. to 15% by mass, in yet another embodiment 1 to 10% by mass, in yet another embodiment 1 to 9% by mass, in yet another embodiment 1 to 8% by mass, yet another In one embodiment, it is 1 to 7 mass%, in still another embodiment, it is 1 to 6 mass%, in yet another embodiment, it is 1 to 3 mass%, and in yet another embodiment, it is 3 to 9 mass% %, in yet another embodiment, it is 4 to 9 mass %, in yet another embodiment, it is 5 to 9 mass %, in yet another embodiment, it is 6 to 9 mass %, and in yet another embodiment 8-9 mass % in still another embodiment, 3-7 mass % in still another embodiment, 5-7 mass % in still another embodiment, 6-7 mass % in still another embodiment.

Furthermore, the compound represented by the general formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-1-1).

[chem 149]

In the aforementioned general formula (X-1-1), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited, and are appropriately combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, it is 1 type. Moreover, in another embodiment of this invention, it is two types. In yet another embodiment, there are three types. In yet another embodiment, there are four or more types.

The content of the compound represented by the aforementioned general formula (X-1-1) may be appropriately adjusted in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (X-1-1) is 1 to 25 mass % in one embodiment of the present invention, and 1 to 25 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. 1 to 20% by mass, 1 to 15% by mass in yet another embodiment, 1 to 10% by mass in yet another embodiment, 3 to 10% by mass in yet another embodiment, and 3 to 10% by mass in yet another embodiment In another embodiment, it is 5-10 mass %.

Furthermore, the compound represented by general formula (X-1-1) used in the liquid crystal composition of the present invention is preferably selected from the compound group represented by formula (36.1) to formula (36.4). at least one compound, preferably containing compounds represented by formula (36.1) and/or formula (36.2).

[chem 150]

When the liquid crystal composition of the present invention contains at least two compounds represented by the aforementioned general formula (ii), and further contains a compound represented by the aforementioned formula (36.2), the compound represented by the aforementioned formula (i), the aforementioned The total content of the compound represented by the general formula (ii) and the compound represented by the aforementioned formula (36.2) is preferably 10 to 45% by mass, more preferably 10 to 25% by mass relative to the total mass of the liquid crystal composition of the present invention , and more preferably 12 to 18% by mass.

Or/in addition, the compound represented by the general formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-1-2).

[chem 151]

In the aforementioned general formula (X-1-2), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (X-1-2) may be appropriately adjusted in consideration of solubility at low temperature, transition temperature, electrical reliability, and the like.

For example, the content of the compound represented by the aforementioned general formula (X-1-2) is 1 to 20 mass % in one embodiment of the present invention, and 1 to 20 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. 1 to 15% by mass, 1 to 10% by mass in yet another embodiment, 1 to 9% by mass in yet another embodiment, 1 to 8% by mass in yet another embodiment, and yet another embodiment 1 to 5% by mass in an embodiment, 1 to 3% by mass in yet another embodiment, 3 to 9% by mass in yet another embodiment, 3 to 7% by mass in yet another embodiment, and yet another In one embodiment, it is 4-9 mass %, in still another embodiment, it is 6-9 mass %, and in still another embodiment, it is 6-7 mass %.

Furthermore, the compound represented by general formula (X-1-2) used in the liquid crystal composition of the present invention is preferably selected from the compound group represented by formula (37.1) to formula (37.4). At least one compound of which preferably contains a compound represented by formula (37.2).

[chem 152]

Or/in addition, the compound represented by the aforementioned general formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by general formula (X-1-3).

[chem 153]

In the aforementioned general formula (X-1-3), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (X-1-3) can be appropriately adjusted in consideration of solubility at low temperature, transition temperature, electrical reliability, and the like.

For example, the content of the compound represented by the aforementioned general formula (X-1-3) is 1 to 20 mass % in one embodiment of the present invention, and 1 to 20 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. It is 1-15 mass %, in yet another embodiment, it is 1-10 mass %, in yet another embodiment, it is 1-7 mass %, and in yet another embodiment, it is 5-7 mass %.

Furthermore, the compound represented by general formula (X-1-3) used in the liquid crystal composition of the present invention is preferably selected from the compound group represented by formula (38.1) to formula (38.4). At least one compound of which preferably contains a compound represented by formula (38.2).

[chem 154]

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (38.2) is preferably 1% by mass or more and 20% by mass or less, preferably 1% by mass or 15% by mass relative to the total mass of the liquid crystal composition of the present invention. Below, preferably 1 mass % to 10 mass %, preferably 1 mass % to 8 mass %, preferably 3 mass % to 5 mass %, preferably 4 mass % to 5 mass %.

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii) and further contains a compound represented by the aforementioned formula (38.2), the compound represented by the aforementioned formula (i) , The total content of the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (38.2) is preferably 10 to 40% by mass, more preferably 10 to 30% by mass relative to the total mass of the liquid crystal composition of the present invention. The mass % is more preferably 10 to 20 mass %, particularly preferably 15 to 20 mass %.

Or/in addition, the compound represented by the aforementioned general formula (M) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X'-1).

[chem 155]

In the aforementioned general formula (X'-1), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the general formula (X'-1) may be appropriately adjusted in consideration of solubility at low temperature, transition temperature, electrical reliability, and the like.

For example, the content of the compound represented by the aforementioned general formula (X'-1) is 1 to 30 mass % in one embodiment of the present invention, and 1 to 30 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. 1 to 25% by mass, 1 to 20% by mass in yet another embodiment, 5 to 20% by mass in yet another embodiment, and 10 to 20% by mass in yet another embodiment.

Furthermore, the compound represented by general formula (X'-1) used in the liquid crystal composition of the present invention is preferably selected from the compound group represented by formula (38.11) to formula (38.14). At least one kind of compound preferably contains a compound represented by formula (38.11) and/or formula (38.12).

[chem 156]

Or/in addition, the compound represented by the aforementioned general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by general formula (X-2).

[chem 157]

In the aforementioned general formula (X-2), X ¹⁰² and X ¹⁰³ each independently represent a fluorine atom or a hydrogen atom, Y ¹⁰ represents a fluorine atom, a chlorine atom, or -OCF ₃ , and R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms , an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

In addition, it is preferable that the compound represented by the said general formula (X-2) used for the liquid crystal composition of this invention is a compound represented by general formula (X-2-1).

[chem 158]

In the aforementioned general formula (X-2-1), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited. In consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 type or 2 or more types, and it is more preferable to combine 3 or more types.

The content of the compound represented by the aforementioned general formula (X-2-1) is preferably 1% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. The above is 20 mass % or less, preferably 1 mass % or more and 16 mass % or less, preferably 1 mass % or more and 12 mass % or less, preferably 1 mass % or more and 10 mass % or less. Among them, the content of the compound represented by the aforementioned general formula (X-2-1) is preferably 2 to 9% by mass, preferably 2 to 6% by mass, preferably 6 to 6% by mass relative to the total mass of the liquid crystal composition of the present invention. 9% by mass.

Furthermore, the compound represented by the aforementioned general formula (X-2-1) used in the liquid crystal composition of the present invention is preferably selected from the group of compounds represented by formula (39.1) to formula (39.4). At least one compound of which preferably contains a compound represented by formula (39.2).

[chem 159]

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (39.2) is preferably 1% by mass or more and 20% by mass or less, preferably 1% by mass or 16% by mass relative to the total mass of the liquid crystal composition of the present invention. Below, it is preferably not less than 1 mass % and not more than 12 mass %, preferably not less than 1 mass % and not more than 9 mass %. Among them, the content of the compound represented by the general formula (39.2) is preferably 2 to 9% by mass, more preferably 6 to 9% by mass based on the total mass of the liquid crystal composition of the present invention.

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii) and further contains a compound represented by the aforementioned formula (39.2), the compound represented by the aforementioned formula (i) , The total content of the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (39.2) is preferably 5 to 40% by mass, preferably 27 to 35% by mass, relative to the total mass of the liquid crystal composition of the present invention %, preferably 17 to 22% by mass.

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii), and further contains a compound represented by the aforementioned formula (38.2) and a compound represented by the aforementioned formula (39.2) The total content of the compound represented by the aforementioned formula (i), the compound represented by the aforementioned general formula (ii), the compound represented by the aforementioned formula (38.2) and the compound represented by the aforementioned formula (39.2) is relative to the liquid crystal of the present invention The total mass of the composition is preferably 10 to 35% by mass, more preferably 15 to 30% by mass, and still more preferably 20 to 25% by mass.

Or/in addition, the compound represented by the general formula (X-2) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-2-2).

[chem 160]

In the aforementioned general formula (X-2-2), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (X-2-2) is preferably 3% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. The above is 20 mass % or less, preferably 6 mass % or more and 16 mass % or less, preferably 9 mass % or more and 12 mass % or less, preferably 9 mass % or more and 10 mass % or less.

Furthermore, the compound represented by general formula (X-2-2) used in the liquid crystal composition of the present invention is preferably selected from the group of compounds represented by formula (40.1) to formula (40.4). At least one compound of which preferably contains a compound represented by formula (40.2).

[chem 161]

Or/in addition, the compound represented by general formula (X) is preferably a compound represented by general formula (X-3).

[chem 162]

In the aforementioned general formula (X-3), X ¹⁰² and X ¹⁰³ each independently represent a fluorine atom or a hydrogen atom, and R ¹⁰ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or a carbon atom Alkoxy groups with numbers 1 to 4.

Compounds that can be combined are not particularly limited. In consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 type or 2 or more types.

In addition, it is preferable that the compound represented by the said general formula (X-3) used for the liquid crystal composition of this invention is a compound represented by general formula (X-3-1).

[chem 163]

In the aforementioned general formula (X-3-1), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (X-3-1) may be appropriately adjusted in consideration of solubility at low temperature, transition temperature, electrical reliability, and the like.

For example, the content of the compound represented by the aforementioned general formula (X-3-1) is 1 to 10 mass % in one embodiment of the present invention, and 1 to 10 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. It is 1-8 mass %, in yet another embodiment, it is 1-6 mass %, in yet another embodiment, it is 1-4 mass %, and in yet another embodiment, it is 1-2 mass %.

Furthermore, the compound represented by general formula (X-3-1) used in the liquid crystal composition of the present invention is preferably selected from the group of compounds represented by formula (41.1) to formula (41.4). At least one compound of which preferably contains a compound represented by formula (41.2).

[chem 164]

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (41.2) is preferably 1% by mass or more and 20% by mass or less, preferably 1% by mass or 15% by mass relative to the total mass of the liquid crystal composition of the present invention. Below, it is preferably not less than 1 mass % and not more than 10 mass %, preferably not less than 1 mass % and not more than 5 mass %.

When the liquid crystal composition of the present invention contains at least two compounds represented by the aforementioned general formula (ii), and further contains a compound represented by the aforementioned formula (41.2), the compound represented by the aforementioned formula (i), the aforementioned The total content of the compound represented by the general formula (ii) and the compound represented by the aforementioned formula (41.2) is preferably 30 to 40% by mass, more preferably 33 to 38% by mass relative to the total mass of the liquid crystal composition of the present invention , and more preferably 35 to 37% by mass.

Or/in addition, the compound represented by the aforementioned general formula (X) is preferably a compound represented by general formula (X-4).

[chem 165]

In the aforementioned general formula (X-4), X ¹⁰² represents a fluorine atom or a hydrogen atom, and R ¹⁰ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkane group with 1 to 4 carbon atoms. Oxygen.

Compounds that can be combined are not particularly limited, but in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 or 2 or more compounds, and more preferably to combine 3 or more compounds.

Furthermore, the compound represented by the general formula (X-4) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-4-1).

[chem 166]

In the aforementioned general formula (X-4-1), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited, but in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 or 2 or more compounds, and more preferably to combine 3 or more compounds.

The content of the compound represented by the aforementioned general formula (X-4-1) may be appropriately adjusted in consideration of solubility at low temperature, transition temperature, electrical reliability, and the like.

The content of the compound represented by the aforementioned general formula (X-4-1) is preferably not less than 2% by mass and not more than 20% by mass, preferably not less than 5% by mass and not more than 17% by mass, relative to the total mass of the liquid crystal composition of the present invention, Preferably it is 10 mass % or more and 15 mass % or less, Preferably it is 10 mass % or more and 13 mass % or less.

Furthermore, the compound represented by general formula (X-4-1) used in the liquid crystal composition of the present invention is preferably selected from the group of compounds represented by formula (42.1) to formula (42.4). At least one compound of which preferably contains a compound represented by formula (42.3).

[chem 167]

Or/in addition, the compound represented by the aforementioned general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by general formula (X-4-2).

[chem 168]

In the aforementioned general formula (X-4-2), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited, but in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 or 2 or more compounds, and more preferably to combine 3 or more compounds.

The content of the compound represented by the aforementioned general formula (X-4-2) is preferably 1% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. Above 20% by mass, preferably 1% by mass to 15% by mass, preferably 1% by mass to 10% by mass, preferably 3% by mass to 7% by mass.

Furthermore, the compound represented by the aforementioned general formula (X-4-2) used in the liquid crystal composition of the present invention is preferably selected from the group of compounds represented by formula (42.11) to formula (42.14). at least one compound, more preferably containing compounds represented by formula (42.13) and/or formula (42.14).

[chem 169]

Or/in addition, the compound represented by the aforementioned general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by general formula (X-4-3).

[chem 170]

In the aforementioned general formula (X-4-3), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited, but in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 or 2 or more compounds, and more preferably to combine 3 or more compounds.

The content of the compound represented by the aforementioned general formula (X-4-3) is preferably 2% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. The above is 20 mass % or less, preferably 2 mass % or more and 15 mass % or less, preferably 2 mass % or more and 10 mass % or less, preferably 2 mass % or more and 5 mass % or less.

Furthermore, the compound represented by the aforementioned general formula (X-4-3) used in the liquid crystal composition of the present invention is preferably selected from the group of compounds represented by formula (42.21) to formula (42.24). At least one compound of which more preferably contains the compound represented by the formula (42.22).

[chem 171]

Or/in addition, the compound represented by the aforementioned general formula (X) is preferably a compound represented by general formula (X-5).

[chem 172]

In the aforementioned general formula (X-5), X ¹⁰² represents a fluorine atom or a hydrogen atom, and R ¹⁰ represents an alkyl group with 1 to 5 carbon atoms, an alkenyl group with 2 to 5 carbon atoms, or an alkane group with 1 to 4 carbon atoms. Oxygen.

Compounds that can be combined are not particularly limited, but in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 or 2 or more compounds, and more preferably to combine 3 or more compounds.

Furthermore, the compound represented by the aforementioned general formula (X-5) is preferably a compound represented by the general formula (X-5-1).

[chem 173]

In the aforementioned general formula (X-5-1), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited, but in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 or 2 or more compounds, and more preferably to combine 3 or more compounds.

The content of the compound represented by the aforementioned general formula (X-5-1) is preferably 2% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. The above is 20% by mass or less, preferably 5% by mass or more and 17% by mass or less, preferably 10% by mass or more and 15% by mass or less, preferably 10% by mass or more and 13% by mass or less.

As the compound represented by the aforementioned general formula (X-5-1), specifically, at least one compound selected from the group of compounds represented by the formula (43.1) to the formula (43.4), preferably containing the compound of the formula (43.2 ) represented by the compound.

[chem 174]

Or/in addition, the compound represented by the aforementioned general formula (X) is preferably a compound represented by general formula (X-6).

[chem 175]

In the aforementioned general formula (X-6), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (X-6) may be appropriately adjusted in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (X-6) is 1 to 25 mass % in one embodiment of the present invention and 1 to 25 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. ~20% by mass, in yet another embodiment, 1~15% by mass, in yet another embodiment, 2~15% by mass, in yet another embodiment, 2~14% by mass, yet another embodiment In an embodiment, it is 2 to 13% by mass, in yet another embodiment, it is 2 to 12% by mass, in yet another embodiment, it is 2 to 11% by mass, and in yet another embodiment, it is 2 to 10% by mass , 2 to 8% by mass in yet another embodiment, 3 to 15% by mass in yet another embodiment, 5 to 15% by mass in yet another embodiment, and 5 to 15% by mass in yet another embodiment 6 to 15% by mass, 7 to 15% by mass in yet another embodiment, 8 to 15% by mass in yet another embodiment, 9 to 15% by mass in yet another embodiment, and 9 to 15% by mass in yet another embodiment In still another embodiment, it is 11 to 15 mass %, in yet another embodiment, it is 3 to 8 mass %, in yet another embodiment, it is 5 to 13 mass %, in yet another embodiment, it is 6 mass % ~8% by mass, in another embodiment 7~11% by mass, in yet another embodiment 8~11% by mass, in yet another embodiment 9~14% by mass, in yet another embodiment In one embodiment, it is 9 to 12 mass %, in still another embodiment, it is 9 to 10 mass %, and in yet another embodiment, it is 11 to 12 mass %.

Furthermore, the compound represented by the aforementioned general formula (X-6), specifically, is preferably at least one compound selected from the group of compounds represented by the formula (44.1) to the formula (44.4), and preferably contains the compound of the formula ( 44.1) and/or a compound represented by formula (44.2).

[chem 176]

In an embodiment in which at least two compounds represented by the aforementioned general formula (ii) and one compound represented by the aforementioned general formula (X-6) are contained in the liquid crystal composition of the present invention, the aforementioned general formula The compound represented by (X-6) is preferably a compound represented by the aforementioned formula (44.2). In this embodiment, the total content of the compound represented by the aforementioned formula (i), the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (44.2) is relative to the total mass of the liquid crystal composition of the present invention , preferably 30 to 50% by mass, more preferably 35 to 50% by mass, preferably 36 to 42% by mass in one embodiment, and preferably 45 to 49% by mass in another embodiment.

In the liquid crystal composition containing at least two kinds of compounds represented by the aforementioned general formula (ii), it is also preferable to contain two kinds of compounds represented by the aforementioned general formula (X-6). In this embodiment, the aforementioned formula (i) The total content of the compound represented by the above-mentioned compound represented by the general formula (ii) and the compound represented by the above-mentioned general formula (X-6) is preferably 40 to 55% by mass relative to the total mass of the liquid crystal composition of the present invention , In one embodiment, it is preferably 40 to 45% by mass, and in another embodiment, it is preferably 48 to 54% by mass.

In addition, the liquid crystal compound of the present invention may contain, as the compound represented by the aforementioned general formula (M), a compound represented by the general formula (X'-7) similar to the compound represented by the aforementioned general formula (X).

[chem 177]

In the aforementioned general formula (X'-7), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (X'-7) can be appropriately adjusted in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (X'-7) is 1 to 20% by mass in one embodiment of the present invention, and 1 to 20% by mass in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. 1 to 15% by mass, 1 to 10% by mass in yet another embodiment, and 1 to 5% by mass in yet another embodiment.

Furthermore, the compound represented by general formula (X'-7) used in the liquid crystal composition of the present invention is preferably selected from the compound group represented by formula (44.11) to formula (44.14). At least one kind of compound, among them, it is more preferable to contain the compound represented by formula (44.13).

[chem 178]

Or/in addition, the compound represented by the aforementioned general formula (X) is preferably a compound represented by general formula (X-8).

[chem 179]

In the aforementioned general formula (X-8), R ¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (X-8) may be appropriately adjusted in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (X-8) is 1 to 25 mass % in one embodiment of the present invention and 1 to 25 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. ~20% by mass, in yet another embodiment, 1~15% by mass, in yet another embodiment, 1~10% by mass, in yet another embodiment, 1~5% by mass, yet another embodiment In the form, it is 1-4 mass %.

Furthermore, the compound represented by the aforementioned general formula (X-8), specifically, is preferably at least one compound selected from the group of compounds represented by the formula (44.21) to the formula (44.24), and preferably contains the compound of the formula ( Compounds represented by 44.22).

[chem 180]

Or/in addition, the compound represented by the aforementioned general formula (X) is preferably at least one compound selected from the group of compounds represented by the general formula (XI).

[chem 181]

In the aforementioned general formula (XI), X ¹¹¹ to X ¹¹⁷ each independently represent a fluorine atom or a hydrogen atom, at least one of X ¹¹¹ to X ¹¹⁷ represents a fluorine atom, and R ¹¹⁰ represents an alkyl group having 1 to 5 carbon atoms, a carbon Alkenyl group having 2 to 5 atoms or alkoxy group having 1 to 4 carbon atoms, Y ¹¹ represents a fluorine atom or -OCF ₃ .

Compounds that can be combined are not particularly limited, but in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., for example, in one embodiment of the present invention, it is preferable to use one or the other. In another embodiment, it is 2 types, and 3 or more types are combined.

The content of the compound represented by the aforementioned general formula (XI) may be appropriately adjusted in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (XI) is 1 to 30 mass % in one embodiment of the present invention, and 1 to 30 mass % in another embodiment, relative to the total mass of the liquid crystal composition of the present invention. 25% by mass, 1 to 23% by mass in yet another embodiment, 1 to 22% by mass in yet another embodiment, 1 to 18% by mass in yet another embodiment, and yet another In one embodiment, it is 1 to 16 mass%, in still another embodiment, it is 1 to 15 mass%, in yet another embodiment, it is 1 to 13 mass%, and in yet another embodiment, it is 1 to 12 mass% %, 1 to 10% by mass in yet another embodiment, 1 to 7% by mass in yet another embodiment, 1 to 6% by mass in yet another embodiment, and yet another embodiment 1 to 5% by mass in still another embodiment, 1 to 4% by mass in yet another embodiment, 2 to 22% by mass in yet another embodiment, 4 to 22% by mass in yet another embodiment, In yet another embodiment, it is 7 to 22 mass %, in yet another embodiment, it is 9 to 22 mass %, in yet another embodiment, it is 10 to 22 mass %, and in yet another embodiment, it is 13 to 22% by mass, 15 to 22% by mass in yet another embodiment, 16 to 22% by mass in yet another embodiment, 18 to 22% by mass in yet another embodiment, and 18 to 22% by mass in yet another embodiment In another embodiment, it is 20 to 22% by mass, in yet another embodiment, it is 2 to 6% by mass, in yet another embodiment, it is 2 to 5% by mass, and in yet another embodiment, it is 9 to 5% by mass. 10% by mass, and in yet another embodiment, 10 to 12% by mass.

When the liquid crystal composition of the present invention is used for a liquid crystal display element with a small cell interval, it is appropriate to make the content of the compound represented by the aforementioned general formula (XI) slightly large. When using for a liquid crystal display element with a small drive voltage, it is suitable to make content of the compound represented by the said General formula (XI) slightly large. Moreover, when using for the liquid crystal display element used in a low-temperature environment, it is suitable to make content of the compound represented by the said General formula (XI) slightly small. In the case of a liquid crystal composition used for a liquid crystal display element having a fast response speed, it is appropriate to make the content of the compound represented by the aforementioned general formula (XI) slightly less.

Furthermore, the compound represented by the general formula (XI) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XI-1).

[chem 182]

In the aforementioned general formula (XI-1), R ¹¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited, and are appropriately combined according to the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, they are 1 type, in another embodiment, 2 types, and in yet another embodiment, 3 or more types are combined.

The content of the compound represented by the aforementioned general formula (XI-1) is preferably 1% by mass or more and 35% or more relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. Mass % or less, Preferably it is 1 mass % or more and 30 mass % or less, Preferably it is 1 mass % or more and 25 mass % or less. Among them, the content of the compound represented by the aforementioned general formula (XI-1) is preferably 2 to 22% by mass, preferably 2 to 21% by mass, preferably 2 to 18% by mass relative to the total mass of the liquid crystal composition of the present invention. %, preferably 2 to 16 mass%, preferably 2 to 15 mass%, preferably 2 to 13 mass%, preferably 2 to 12 mass%, preferably 2 to 10 mass%, preferably 2 to 7 mass%, Preferably it is 2 to 6 mass%, preferably 2 to 5 mass%, preferably 2 to 4 mass%, preferably 4 to 22 mass%, preferably 5 to 22 mass%, preferably 7 to 22 mass%, preferably 9 to 22% by mass, preferably 10 to 22% by mass, preferably 13 to 22% by mass, preferably 15 to 22% by mass, preferably 16 to 22% by mass, preferably 18 to 22% by mass, preferably 20 to 20% by mass 22% by mass, preferably 9 to 10% by mass, preferably 10 to 12% by mass.

Furthermore, the compound represented by general formula (XI-1) used in the liquid crystal composition of the present invention is preferably at least one selected from the compound group represented by formula (45.1) to formula (45.4). One compound, preferably containing at least one compound selected from the group of compounds represented by formula (45.2) to formula (45.4), more preferably containing compounds represented by formula (45.2) and/or formula (45.4).

[chem 183]

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (45.2), considering the solubility at low temperature, transition temperature, electrical reliability, etc., relative to the total mass of the liquid crystal composition of the present invention, preferably 1 mass % to 25 mass %, preferably 1 mass % to 20 mass %, preferably 1 mass % to 15 mass %, preferably 1 mass % to 11 mass %, preferably 2 mass % to 7 mass % %the following.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (45.3), considering the solubility at low temperature, transition temperature, electrical reliability, etc., relative to the total mass of the liquid crystal composition of the present invention, preferably 1 mass % to 20 mass %, preferably 1 mass % to 15 mass %, preferably 1 mass % to 10 mass %, preferably 2 mass % to 10 mass %, preferably 2 mass % to 9 mass % % or less, preferably 4 mass % or more and 10 mass % or less.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (45.4), considering the solubility at low temperature, transition temperature, electrical reliability, etc., relative to the total mass of the liquid crystal composition of the present invention, preferably 1 mass % to 20 mass %, preferably 1 mass % to 15 mass %, preferably 1 mass % to 10 mass %. Among them, for example, it is preferably from 4 to 20 mass%, from 4 to 15 mass%, from 4 to 10 mass%, from 5 to 10 mass%.

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii) and further contains a compound represented by the aforementioned formula (45.4), the compound represented by the aforementioned formula (i) , The total content of the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (45.4) is preferably 10 to 40% by mass, more preferably 15 to 35% by mass relative to the total mass of the liquid crystal composition of the present invention. The mass % is more preferably 20 to 35 mass %, particularly preferably 20 to 30 mass %.

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii), and further contains a compound represented by the aforementioned formula (8.1) and a compound represented by the aforementioned formula (45.4) The total content of the compound represented by the aforementioned formula (i), the compound represented by the aforementioned general formula (ii), the compound represented by the aforementioned formula (8.1) and the compound represented by the aforementioned formula (45.4) is relative to the liquid crystal of the present invention The total mass of the composition is preferably 10 to 30% by mass, more preferably 15 to 30% by mass, still more preferably 20 to 30% by mass, particularly preferably 20 to 25% by mass.

The compound represented by the aforementioned general formula (ii) contained in the liquid crystal composition of the present invention is one kind, and further contains the compound represented by the aforementioned general formula (IV-2) and the compound represented by the aforementioned formula (45.4) In the case of , the total content of the compound represented by the aforementioned formula (i), the compound represented by the aforementioned general formula (ii), the compound represented by the aforementioned general formula (IV-2) and the compound represented by the aforementioned formula (45.4) Preferably it is 20-40 mass % with respect to the gross mass of the liquid crystal composition of this invention, More preferably, it is 25-40 mass %, More preferably, it is 25-35 mass %, Especially preferably, it is 27-32 mass %.

The liquid crystal composition of the present invention contains at least two compounds represented by the aforementioned general formula (ii), and the liquid crystal composition contains one compound represented by the aforementioned general formula (XI-1). In an embodiment, the compound represented by the aforementioned general formula (XI-1) is preferably a compound represented by the aforementioned formula (45.2). In this embodiment, the total content of the compound represented by the aforementioned formula (i), the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (45.2) is relative to the total mass of the liquid crystal composition of the present invention , preferably 35 to 55% by mass, more preferably 38 to 50% by mass, even more preferably 39 to 46% by mass.

In an embodiment in which at least two compounds represented by the aforementioned general formula (ii) are contained in the liquid crystal composition of the present invention, it is also preferable to contain three types of compounds represented by the aforementioned general formula (XI-1). In this embodiment, the total content of the compound represented by the aforementioned formula (i), the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned general formula (XI-1) is relative to the liquid crystal composition of the present invention The total mass of is preferably 35 to 55% by mass, more preferably 40 to 50% by mass, even more preferably 42 to 46% by mass.

Or/in addition, the compound represented by the aforementioned general formula (XI) used in the liquid crystal composition of the present invention is preferably a compound represented by general formula (XI-2).

[chem 184]

In the aforementioned general formula (XI-2), R ¹¹⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited, and are appropriately combined according to the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, they are 1 type, in another embodiment, 2 types, and in yet another embodiment, 3 or more types are combined.

The content of the compound represented by the aforementioned general formula (XI-2) is preferably 1% by mass or more and 20% or more relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. Mass % or less, preferably 1 mass % to 15 mass %, preferably 1 mass % to 10 mass %, preferably 1 mass % to 5 mass %, preferably 1 mass % to 3 mass %.

Furthermore, the compound represented by the general formula (XI-2) used in the liquid crystal composition of the present invention is preferably at least One compound, which preferably contains at least one compound selected from the group of compounds represented by formula (45.12) to formula (45.14), more preferably contains the compound represented by formula (45.12).

[chem 185]

Or/in addition, the compound represented by the aforementioned general formula (X) is preferably at least one compound selected from the group of compounds represented by the general formula (XII).

[chem 186]

In the aforementioned general formula (XII), X ¹²¹ to X ¹²⁶ each independently represent a fluorine atom or a hydrogen atom, and R ¹²⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkenyl group having 1 to 5 carbon atoms. ~4 alkoxy groups, Y ¹² represents a fluorine atom or -OCF ₃ .

The compounds that can be combined are not particularly limited, and in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 to 3 or more compounds, more preferably 1 to 4 or more compounds.

Furthermore, the compound represented by the general formula (XII) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XII-1).

[chem 187]

In the aforementioned general formula (XII-1), R ¹²⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Compounds that can be combined are not particularly limited, and in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to combine 1 to 2 or more compounds, more preferably 1 to 3 or more compounds.

The content of the compound represented by the aforementioned general formula (XII-1) is preferably 1% by mass or more 15% with respect to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. Mass % or less, preferably 2 mass % or more and 10 mass % or less, preferably 3 mass % or more and 8 mass % or less, preferably 4 mass % or more and 6 mass % or less.

Furthermore, the compound represented by general formula (XII-1) used in the liquid crystal composition of the present invention is preferably at least one selected from the group of compounds represented by formula (46.1) to formula (46.4). A compound preferably containing at least one compound selected from the group of compounds represented by formula (46.2) to formula (46.4).

[chem 188]

Or/in addition, the compound represented by the aforementioned general formula (XII) is preferably a compound represented by general formula (XII-2).

[chem 189]

In the aforementioned general formula (XII-2), R ¹²⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., it is preferable to appropriately combine 1 to 2 or more kinds, more preferably to combine 1 to 3 or more kinds .

The content of the compound represented by the aforementioned general formula (XII-2) is preferably 1% by mass or more and 20% or more relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. Mass % or less, preferably 3 mass % to 20 mass %, preferably 4 mass % to 17 mass %, preferably 6 mass % to 15 mass %, preferably 9 mass % to 13 mass %.

Furthermore, the compound represented by general formula (XII-2) used in the liquid crystal composition of the present invention is preferably at least one selected from the group of compounds represented by formula (47.1) to formula (47.4). A compound preferably containing at least one compound selected from the group of compounds represented by formula (47.2) to formula (47.4).

[chem 190]

Or/in addition, the compound represented by the aforementioned general formula (M) is preferably at least one compound selected from the group of compounds represented by the general formula (XIII).

[chem 191]

In the aforementioned general formula (XIII), X ¹³¹ to X ¹³⁵ each independently represent a fluorine atom or a hydrogen atom, and R ¹³⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkenyl group having 1 to 5 carbon atoms. ~4 alkoxy groups, Y ¹³ represents a fluorine atom or -OCF ₃ .

The types of compounds that can be combined are not particularly limited, and it is preferable to contain 1 to 2 types of these compounds, more preferably 1 to 3 types, and even more preferably 1 to 4 types.

The content of the compound represented by the aforementioned general formula (XIII) may be appropriately adjusted in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (XIII) is 2 to 30 mass % in one embodiment of the present invention, and 4 to 30 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. % by mass, 5 to 30% by mass in still another embodiment, 7 to 30% by mass in yet another embodiment, 9 to 30% by mass in still another embodiment, and yet another embodiment 11 to 30% by mass in still another embodiment, 13 to 30% by mass in yet another embodiment, 14 to 30% by mass in yet another embodiment, 16 to 30% by mass in yet another embodiment, In yet another embodiment, it is 20 to 30% by mass.

In addition, for example, the content of the compound represented by the aforementioned general formula (XIII) is 2 to 25% by mass in one embodiment of the present invention, and the aforementioned The content of the compound is 2 to 20% by mass, and in yet another embodiment, the content of the aforementioned compound is 2 to 15% by mass, and in yet another embodiment, the content of the aforementioned compound is 2 to 10% by mass, and yet another In embodiment, content of the said compound is 2-5 mass %.

When the liquid crystal composition of the present invention is used for a liquid crystal display element having a small cell interval, it is appropriate to make the content of the compound represented by the aforementioned general formula (XIII) slightly larger. When it is used for the liquid crystal display element with a small drive voltage, it is suitable to make content of the compound represented by the said General formula (XIII) slightly large. Moreover, when using for the liquid crystal display element used in a low-temperature environment, it is suitable to make content of the compound represented by the said General formula (XIII) slightly small. In the case of a liquid crystal composition used for a liquid crystal display element having a fast response speed, it is appropriate to slightly reduce the content of the compound represented by the aforementioned general formula (XIII).

Furthermore, the compound represented by the aforementioned general formula (XIII) is preferably a compound represented by the general formula (XIII-1).

[chem 192]

In the aforementioned general formula (XIII-1), R ¹³⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

Preferably, the compound represented by the aforementioned general formula (XIII-1) is contained in an amount of 1 mass % to 25 mass %, preferably 3 mass % to 25 mass %, preferably 5 mass %, relative to the total mass of the liquid crystal composition of the present invention. % to 20% by mass, preferably 10% to 15% by mass.

Furthermore, the compound represented by the general formula (XIII-1) is preferably at least one compound selected from the group of compounds represented by the formula (48.1) to the formula (48.4), preferably a compound represented by the formula (48.2) .

[chem 193]

Or/in addition, the compound represented by the aforementioned general formula (XIII) is preferably a compound represented by general formula (XIII-2).

[chem 194]

In the aforementioned general formula (XIII-2), R ¹³⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and it is preferable to contain 1 to 2 or more of these compounds.

Preferably, the compound represented by the aforementioned general formula (XIII-2) is contained in an amount of 1 mass % to 25 mass %, preferably 1 mass % to 20 mass %, preferably 1 mass %, relative to the total mass of the liquid crystal composition of the present invention. % to 15% by mass, preferably 3% to 14% by mass. Among them, the compound represented by the aforementioned general formula (XIII-2) preferably contains 3% by mass to 11% by mass, preferably 3% by mass to 6% by mass, and preferably contains 6% by mass to 14% by mass, preferably 11% by mass to 14% by mass.

Furthermore, the compound represented by general formula (XIII-2) is preferably at least one compound selected from the compound group represented by formula (49.1) to formula (49.4), preferably formula (49.1) and/or formula The compound represented by (49.2).

[chem 195]

Or/in addition, the compound represented by the aforementioned general formula (XIII) is preferably a compound represented by the general formula (XIII-3).

[chem 196]

In the aforementioned general formula (XIII-3), R ¹³⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and it is preferable to contain one or two of these compounds.

Preferably, the compound represented by the aforementioned general formula (XIII-3) is contained in an amount of 2 mass % to 20 mass %, preferably 4 mass % to 20 mass %, preferably 9 mass %, relative to the total mass of the liquid crystal composition of the present invention. % to 17% by mass, preferably 11% to 14% by mass.

Furthermore, the compound represented by the aforementioned general formula (XIII-3) is preferably at least one compound selected from the group of compounds represented by formula (50.1) to formula (50.4), preferably formula (50.1) and/or A compound represented by formula (50.2).

[chem 197]

Or/in addition, the compound represented by the aforementioned general formula (M) is preferably at least one compound selected from the group of compounds represented by the general formula (XIV).

[chem 198]

In the aforementioned general formula (XIV), R ¹⁴⁰ represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms, and X ¹⁴¹ to X ¹⁴⁴ are each independently represents a fluorine atom or a hydrogen atom, Y ¹⁴ represents a fluorine atom, a chlorine atom or OCF ₃ , Q ¹⁴ represents a single bond, -COO- or -CF ₂ O-, and m ¹⁴ is 0 or 1.

The types of compounds that can be combined are not limited, and are appropriately combined according to the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, it is 1 type. Furthermore, in another embodiment of this invention, it is two types. Alternatively, still another embodiment of the present invention is three types. Moreover, in still another embodiment of this invention, there are four types. Or, in still another embodiment of this invention, it is 5 types. Or, in still another embodiment of this invention, it is 6 or more types.

The content of the compound represented by the aforementioned general formula (XIV) may be appropriately adjusted in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (XIV) is 1 to 30 mass % in one embodiment of the present invention, and 1 to 25 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. % by mass, 5 to 25% by mass in yet another embodiment, 5 to 24% by mass in yet another embodiment, 5 to 22% by mass in yet another embodiment, and yet another embodiment 5-10% by mass in still another embodiment, 5-9% by mass in yet another embodiment, 5-8% by mass in yet another embodiment, 5-7% by mass in yet another embodiment, In yet another embodiment, it is 7 to 24% by mass, in yet another embodiment, it is 8 to 24% by mass, in yet another embodiment, it is 22 to 24% by mass, and in yet another embodiment, it is 7 to 9% by mass, and in yet another embodiment, 7 to 8% by mass.

When the liquid crystal composition of the present invention is used for a liquid crystal display element having a low driving voltage, it is appropriate to make the content of the compound represented by the aforementioned general formula (XIV) slightly large. Moreover, in the case of the liquid crystal composition used for the liquid crystal display element with a quick response speed, it is suitable to make content of the compound represented by the said General formula (XIV) slightly small.

Furthermore, the compound represented by general formula (XIV) is preferably a compound represented by general formula (XIV-1).

[chem 199]

In the aforementioned general formula (XIV-1), R ¹⁴⁰ represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms, Y ¹⁴ represents a fluorine atom, Chlorine atom or -OCF ₃ .

The types of compounds that can be combined are not limited, and it is preferable to combine 1 to 3 compounds in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

Furthermore, the compound represented by general formula (XIV-1) is preferably a compound represented by general formula (XIV-1-1).

[chem 200]

In the aforementioned general formula (XIV-1-1), R ¹⁴⁰ represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms.

The content of the compound represented by the aforementioned general formula (XIV-1-1) may be appropriately adjusted in consideration of solubility at low temperature, transition temperature, electrical reliability, and the like.

For example, the content of the compound represented by the aforementioned general formula (XIV-1-1) relative to the total mass of the liquid crystal composition of the present invention is 1 mass % or more and 20 mass % in one embodiment of the present invention, another embodiment In an embodiment, it is 1 mass % to 15 mass %, in yet another embodiment, it is 1 mass % to 10 mass %, in yet another embodiment, it is 1 mass % to 8 mass %, and yet another embodiment In another embodiment, it is 3 mass % or more and 8 mass % or less, and in still another embodiment, it is 7 mass % or more and 8 mass % or less.

Furthermore, the compound represented by the general formula (XIV-1-1), specifically, is preferably at least one compound selected from the compound group represented by the formula (51.1) to the formula (51.4), and more preferably contains the compound of the formula The compound represented by (51.1).

[CH201]

Or/in addition, the compound represented by general formula (XIV-1) is preferably a compound represented by general formula (XIV-1-2).

[CH202]

In the aforementioned general formula (XIV-1-2), R ¹⁴⁰ represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms.

The content of the compound represented by the aforementioned general formula (XIV-1-2) is preferably 1% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. The above is 15 mass % or less, preferably 3 mass % or more and 13 mass % or less, preferably 5 mass % or more and 11 mass % or less, preferably 7 mass % or more and 9 mass % or less.

Furthermore, the compound represented by the general formula (XIV-1-2), specifically, is preferably at least one compound selected from the compound group represented by the formula (52.1) to the formula (52.4), and preferably contains the compound of the formula The compound represented by (52.4).

[CH203]

Or/in addition, the compound represented by the aforementioned general formula (XIV) is preferably a compound represented by general formula (XIV-2).

[chem 204]

In the aforementioned general formula (XIV-2), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and each of X ¹⁴¹ to X ¹⁴⁴ is independently represent a fluorine atom or a hydrogen atom, and Y ¹⁴ represents a fluorine atom, a chlorine atom or -OCF ₃ .

The types of compounds that can be combined are not limited, and are appropriately combined according to the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, it is 1 type. Furthermore, in another embodiment of this invention, it is two types. Alternatively, still another embodiment of the present invention is three types. Moreover, in still another embodiment of this invention, there are four types. Or, in still another embodiment of this invention, it is 5 or more types.

The content of the compound represented by the aforementioned general formula (XIV-2) may be appropriately adjusted in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (XIV-2) is 1 to 35 mass % in one embodiment of the present invention and 1 to 35 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. ~30% by mass, in yet another embodiment, 1~25% by mass, in yet another embodiment, 5~25% by mass, in yet another embodiment, 5~22% by mass, yet another In one embodiment, it is 5 to 21 mass%, in still another embodiment, it is 5 to 10 mass%, in yet another embodiment, it is 5 to 8 mass%, and in yet another embodiment, it is 8 to 25 mass% %, in yet another embodiment, it is 21 to 25 mass %, and in yet another embodiment, it is 21 to 22 mass %.

When the liquid crystal composition of the present invention is used for a liquid crystal display element having a small driving voltage, it is appropriate to make the content of the compound represented by the aforementioned general formula (XIV-2) slightly larger. Moreover, in the case of the liquid crystal composition used for the liquid crystal display element with a quick response speed, it is suitable to make content of the compound represented by said General formula (XIV-2) slightly small.

Furthermore, the compound represented by general formula (XIV-2) is preferably a compound represented by general formula (XIV-2-1).

[CH205]

In the aforementioned general formula (XIV-2-1), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (XIV-2-1) is preferably 1% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. The above is 15 mass % or less, preferably 3 mass % or more and 13 mass % or less, preferably 5 mass % or more and 11 mass % or less, preferably 7 mass % or more and 9 mass % or less.

Furthermore, the compound represented by the general formula (XIV-2-1), specifically, is preferably at least one compound selected from the group of compounds represented by the formula (53.1) to the formula (53.4), and preferably contains the compound of the formula The compound represented by (53.4).

[chem 206]

Or/in addition, the compound represented by the aforementioned general formula (XIV-2) is preferably a compound represented by general formula (XIV-2-2).

[chem 207]

In the aforementioned general formula (XIV-2-2), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (XIV-2-2) is preferably 3% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. More than 20% by mass, preferably 6% by mass to 17% by mass, preferably 6% by mass to 15% by mass, preferably 7% by mass to 10% by mass, preferably 7% by mass to 9% by mass, Preferably it is 7 mass % or more and 8 mass % or less.

Furthermore, the compound represented by the general formula (XIV-2-2), specifically, is preferably at least one compound selected from the compound group represented by the formula (54.1) to the formula (54.4), and preferably contains the compound of the formula (54.1), a compound represented by formula (54.2), and/or formula (54.4).

[chem 208]

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (54.1) is preferably 0.5% by mass or more and 20% by mass or less, preferably 0.5% by mass or 15% by mass relative to the total mass of the liquid crystal composition of the present invention. Less than or equal to 0.5 mass % to 10 mass %, preferably 0.5 mass % to 5 mass %, preferably 0.5 mass % to 4 mass %, preferably 2 mass % to 4 mass %, preferably 0.5 mass % % or more and less than 4% by mass.

In the embodiment in which the liquid crystal composition of the present invention contains at least two compounds represented by the aforementioned general formula (ii), it is preferable to contain the compound represented by the aforementioned formula (54.1), the compound represented by the aforementioned formula (i), the aforementioned The total content of the compound represented by the general formula (ii) and the compound represented by the aforementioned formula (54.1) is preferably 10 to 45% by mass, more preferably 20 to 45% by mass relative to the total mass of the liquid crystal composition of the present invention , more preferably 30 to 40% by mass, particularly preferably 35 to 40% by mass.

In the liquid crystal composition of the present invention, the content of the compound represented by the aforementioned formula (54.2) is preferably 1% by mass or more and 20% by mass or less, preferably 1% by mass or 15% by mass relative to the total mass of the liquid crystal composition of the present invention. Below, preferably 1 mass % to 10 mass %, preferably 4 mass % to 10 mass %, preferably 5 mass % to 10 mass %, preferably 1 mass % to 7 mass %, preferably 4 mass % % to 7% by mass, preferably 5% to 7% by mass.

Or/in addition, the compound represented by the aforementioned general formula (XIV-2) is preferably a compound represented by general formula (XIV-2-3).

[chem 209]

In the aforementioned general formula (XIV-2-3), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (XIV-2-3) is preferably 5% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. Above 30% by mass, preferably 9% by mass to 27% by mass, preferably 12% by mass to 24% by mass, preferably 12% by mass to 20% by mass.

Furthermore, the compound represented by the general formula (XIV-2-3), specifically, is preferably at least one compound selected from the compound group represented by the formula (55.1) to the formula (55.4), and preferably contains the compound of the formula (55.2) and/or a compound represented by formula (55.4).

[CH210]

Or/in addition, the compound represented by the aforementioned general formula (XIV-2) is preferably a compound represented by general formula (XIV-2-4).

[CH211]

In the aforementioned general formula (XIV-2-4), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not limited, and are appropriately combined according to the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, it is 1 type. Furthermore, in another embodiment of this invention, it is two types. Or, still another embodiment of this invention is 3 or more types.

The content of the compound represented by the aforementioned general formula (XIV-2-4) is appropriately adjusted according to the embodiment in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (XIV-2-4) is 1 to 30 mass % in one embodiment of the present invention, and 1 to 30 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. 1 to 25% by mass, 1 to 22% by mass in yet another embodiment, 5 to 22% by mass in yet another embodiment, 8 to 22% by mass in yet another embodiment, and 8 to 22% by mass in yet another embodiment In another embodiment, it is 14 to 22 mass %, in yet another embodiment, it is 21 to 22 mass %, in yet another embodiment, it is 5 to 21 mass %, in yet another embodiment, it is 5 to 22 mass % 10% by mass.

When the liquid crystal composition of the present invention is used for a liquid crystal display element having a small driving voltage, it is appropriate to make the content of the compound represented by the above-mentioned general formula (XIV-2-4) slightly large. Moreover, in the case of the liquid crystal composition used for the liquid crystal display element with a quick response speed, it is suitable to make content of the compound represented by the said general formula (XIV-2-4) slightly small.

Furthermore, the compound represented by the aforementioned general formula (XIV-2-4), specifically, is preferably at least one compound selected from the group of compounds represented by the formula (56.1) to the formula (56.4), which preferably contains A compound represented by formula (56.1), formula (56.2), and/or formula (56.4).

[chem 212]

For example, the content of the compound represented by the aforementioned formula (56.1) is 1 to 25 mass % in one embodiment of the present invention, and 1 to 20 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. %, 1 to 15% by mass in yet another embodiment, 1 to 11% by mass in yet another embodiment, 3 to 11% by mass in yet another embodiment, and 3 to 11% by mass in yet another embodiment It is 5-11 mass %, 3-8 mass % in still another embodiment, 5-8 mass % in still another embodiment, 10-11 mass % in still another embodiment.

For example, the content of the compound represented by the aforementioned formula (56.4) is 1 to 25 mass % in one embodiment of the present invention, and 1 to 20 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. %, 1-11 mass % in yet another embodiment, 3-11 mass % in yet another embodiment, 8-11 mass % in yet another embodiment.

When the liquid crystal composition of the present invention contains one compound represented by the aforementioned general formula (ii) and further contains a compound represented by the aforementioned formula (56.1), the compound represented by the aforementioned formula (i) , The total content of the compound represented by the aforementioned general formula (ii) and the compound represented by the aforementioned formula (56.1) is preferably 10 to 40% by mass, more preferably 20 to 40% by mass, relative to the total mass of the liquid crystal composition of the present invention. % by mass, more preferably 25 to 40 mass%, particularly preferably 30 to 35 mass%.

The compound represented by the aforementioned general formula (ii) contained in the liquid crystal composition of the present invention is one kind, and contains the compound represented by the aforementioned formula (6.6), the compound represented by the aforementioned formula (28.5) and the aforementioned formula ( In the case of the compound represented by 56.1), the compound represented by the aforementioned formula (i), the compound represented by the aforementioned general formula (ii), the compound represented by the aforementioned formula (28.5), the compound represented by the aforementioned formula (6.6) The total content of the compound represented by the aforementioned formula (56.1) is preferably 30 to 70% by mass, more preferably 40 to 70% by mass, and even more preferably 40 to 60% by mass relative to the total mass of the liquid crystal composition of the present invention , particularly preferably 50 to 60% by mass.

When at least two compounds represented by the aforementioned general formula (ii) are contained in the liquid crystal composition of the present invention, it is preferable to contain at least two compounds represented by the aforementioned general formula (XIV-2-4). When containing at least two compounds represented by the aforementioned general formula (XIV-2-4), it is preferable to contain both the compound represented by the aforementioned formula (56.2) and the compound represented by the aforementioned formula (56.4).

The content of the compound represented by the aforementioned formula (i), the at least two compounds represented by the aforementioned general formula (ii), and the at least two compounds represented by the aforementioned general formula (XIV-2-4) are relative to the liquid crystal combination of the present invention The total mass of the substance is preferably 20 to 45% by mass, more preferably 25 to 40% by mass, even more preferably 30 to 35% by mass.

Or/in addition, the compound represented by the aforementioned general formula (XIV-2) is preferably a compound represented by general formula (XIV-2-5).

[CH213]

In the aforementioned general formula (XIV-2-5), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (XIV-2-5) is preferably 5% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. 25% by mass or more, preferably 10% by mass or more and 22% by mass or less, preferably 13% by mass or more and 18% by mass or less, preferably 13% by mass or more and 15% by mass or less.

Furthermore, the compound represented by the aforementioned general formula (XIV-2-5) is specifically at least one compound selected from the compound group represented by the formula (57.1) to the formula (57.4). Among them, the compound represented by the formula (57.1) is preferably contained.

[chem 214]

Or/in addition, the compound represented by general formula (XIV-2) is preferably a compound represented by general formula (XIV-2-6).

[CH215]

In the aforementioned general formula (XIV-2-6), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The content of the compound represented by the aforementioned general formula (XIV-2-6) is preferably 5% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, etc. Above 25% by mass, preferably 10% by mass to 22% by mass, preferably 15% by mass to 20% by mass, preferably 15% by mass to 17% by mass.

Furthermore, the compound represented by the aforementioned general formula (XIV-2-6), specifically, is preferably at least one compound selected from the compound group represented by formula (58.1) to formula (58.4), which preferably contains A compound represented by formula (58.2).

[chem 216]

Or/in addition, the compound represented by the aforementioned general formula (XIV) is preferably a compound represented by general formula (XIV-3).

[CH217]

In the aforementioned general formula (XIV-3), R ¹⁴⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 or more types.

The content of the compound represented by the aforementioned general formula (XIV-3) is preferably 2.5% relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc. Mass % to 25 mass %, preferably 3 mass % to 15 mass %, preferably 3 mass % to 10 mass %.

Furthermore, the compound represented by the aforementioned general formula (XIV-3), specifically, is preferably at least one compound selected from the group of compounds represented by the formula (61.1) to the formula (61.4), more preferably the compound of the formula ( 61.1) and/or a compound represented by formula (61.2).

[CH218]

Or/in addition, the compound represented by the aforementioned general formula (M) is preferably a compound represented by general formula (XV).

[chem 219]

In the aforementioned general formula (XV), R ¹⁵⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and A ¹⁵¹ represents 1,4-ethylene Cyclohexyl or 1,4-phenylene, the hydrogen atoms on the aforementioned 1,4-phenylene may be replaced by fluorine atoms.

Compounds that can be combined are not particularly limited, and are appropriately combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like. For example, in one embodiment of the present invention, it is 1 type. Moreover, in another embodiment of this invention, it is two types. In yet another embodiment, there are three types. In yet another embodiment, there are four types. In yet another embodiment, there are five or more types.

The content of the compound represented by the aforementioned general formula (XV) is appropriately adjusted according to the embodiment in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. For example, the content of the compound represented by the aforementioned general formula (XV) is 0.5 to 30 mass % in one embodiment of the present invention, and 1 to 30 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. % by mass, 3 to 30% by mass in yet another embodiment, 6 to 30% by mass in yet another embodiment, 9 to 30% by mass in yet another embodiment, and yet another embodiment 11 to 30% by mass in still another embodiment, 12 to 30% by mass in yet another embodiment, 18 to 30% by mass in yet another embodiment, 19 to 30% by mass in yet another embodiment, In yet another embodiment, the content is 23 to 30% by mass, and in yet another embodiment, the content is 25 to 30% by mass.

In addition, for example, the content of the compound represented by the aforementioned general formula (XV) is 0.5 to 25 mass % in one embodiment of the present invention, and 0.5 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. ~ 20% by mass, in still another embodiment 0.5-13% by mass, in yet another embodiment 0.5-9% by mass, in yet another embodiment 1-6% by mass.

The compound represented by the aforementioned general formula (XV) used in the liquid crystal composition of the present invention is preferably a compound represented by general formula (XV-1).

[Chemical 220]

In the aforementioned general formula (XV-1), R ¹⁵⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (XV-1) may be appropriately adjusted in consideration of characteristics such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (XV-1) is 1 to 25 mass % in one embodiment of the present invention and 1 to 25 mass % in another embodiment with respect to the total mass of the liquid crystal composition of the present invention. ~ 20% by mass, in still another embodiment 1 ~ 10% by mass, in yet another embodiment 3 ~ 10% by mass, in yet another embodiment 4 ~ 7% by mass, yet another In an embodiment, it is 1 to 5% by mass, and in yet another embodiment, it is 5 to 10% by mass.

Furthermore, the compound represented by the general formula (XV-1) used in the liquid crystal composition of the present invention is preferably at least A compound, which more preferably contains a compound represented by formula (59.2).

[chem 221]

Or/in addition, the compound represented by the aforementioned general formula (XV) is preferably a compound represented by general formula (XV-2).

[chem 222]

In the aforementioned general formula (XV-2), R ¹⁵⁰ represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.

The compounds that can be combined are not particularly limited, and one or more compounds are preferably combined in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.

The content of the compound represented by the aforementioned general formula (XV-2) may be appropriately adjusted in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence.

For example, the content of the compound represented by the aforementioned general formula (XV-2) is preferably It is 0.5% by mass to 20% by mass, preferably 1% by mass to 15% by mass, preferably 1% by mass to 10% by mass, preferably 1% by mass to 4% by mass.

Furthermore, the compound represented by the general formula (XV-2) used in the liquid crystal composition of the present invention is preferably at least A compound, which more preferably contains a compound represented by formula (60.2).

[chem 223]

The liquid crystal composition of the present invention may further contain a compound represented by the general formula (XVI) having a structure similar to the aforementioned general formula (M) as a chiral agent.

[chem 224]

In the aforementioned general formula (XVI), R ¹⁶⁰ represents an alkyl group having 9 or 10 carbon atoms, X ¹⁶¹ to X ¹⁶³ represent a hydrogen atom or a fluorine atom, K ¹⁶⁰ represents a single bond or -CH ₂ CH ₂ -, and P ¹⁶⁰ represents 1 , 2, or 3.

The types of compounds that can be combined are not particularly limited, and they are used in appropriate combination according to desired properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. The type of compound to be used is, for example, one type in one embodiment of the present invention. Or in another embodiment of this invention, it is 2 or more types.

The content of the compound represented by the aforementioned general formula (XVI) is preferably 2.5% by mass relative to the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc. The above is 25% by mass or less, preferably 3% by mass or more and 15% by mass or less, preferably 3% by mass or more and 10% by mass or less.

Furthermore, the compound represented by the aforementioned general formula (XVI), specifically, is preferably at least one compound selected from the group of compounds represented by formula (62.1) to formula (62.4), preferably formula (62.1) and /or a compound represented by formula (62.3).

[chem 225]

It is preferable to adjust the content of the compound represented by the aforementioned formula (62.1) according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., the compound relative to the total mass of the liquid crystal composition of the present invention , preferably 0 to 40% by mass, preferably 1 to 35% by mass, preferably 1 to 30% by mass, and preferably 5 to 28% by mass.

It is preferable to adjust the content of the compound represented by the aforementioned formula (62.3) according to the required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence, etc., the compound relative to the total mass of the liquid crystal composition of the present invention , preferably 0 to 40% by mass, preferably 1 to 35% by mass, preferably 1 to 30% by mass, and preferably 5 to 28% by mass.

The liquid crystal composition containing the compound represented by the aforementioned formula (i) and at least two compounds represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned formula (3.3), the compound represented by the aforementioned formula (19.1) In the case of the compound, the compound represented by the aforementioned formula (41.2), the compound represented by the aforementioned formula (44.2), and the compound represented by the aforementioned formula (45.2), the compound represented by the aforementioned formula (i), the aforementioned general formula (ii) ), the compound represented by the aforementioned formula (3.3), the compound represented by the aforementioned formula (19.1), the compound represented by the aforementioned formula (41.2), the compound represented by the aforementioned formula (44.2), and the aforementioned The total content of the compound represented by the formula (45.2) is preferably 30 to 60% by mass, more preferably 40 to 60% by mass, even more preferably 45 to 55% by mass, particularly preferably 48 to 52% by mass.

The liquid crystal composition containing the compound represented by the aforementioned formula (i) and at least two compounds represented by the aforementioned general formula (ii) further contains the two compounds represented by the aforementioned general formula (IX-2-5) and the aforementioned In the case of the compound represented by the formula (21.1), the compound represented by the aforementioned formula (i), at least two compounds represented by the aforementioned general formula (ii), the 2 compounds represented by the aforementioned general formula (IX-2-5) The total content of the compound and the compound represented by the aforementioned formula (21.1) is preferably 25 to 55% by mass, more preferably 35 to 50% by mass, and even more preferably 40 to 50% by mass relative to the total mass of the liquid crystal composition of the present invention. 45% by mass, particularly preferably 42 to 44% by mass.

The liquid crystal composition containing the compound represented by the aforementioned formula (i) and at least two compounds represented by the aforementioned general formula (ii) further contains the two compounds represented by the aforementioned general formula (X-6) and the aforementioned formula ( In the case of the compound represented by 45.2), the compound represented by the aforementioned formula (i), at least two compounds represented by the aforementioned general formula (ii), the two compounds represented by the aforementioned general formula (X-6), and the aforementioned The total content of the compound represented by formula (45.2) is preferably 40 to 70% by mass, more preferably 45 to 65% by mass, even more preferably 50 to 60% by mass, particularly Preferably it is 53-57 mass %.

The liquid crystal composition containing the compound represented by the aforementioned formula (i) and at least two compounds represented by the aforementioned general formula (ii) further contains two compounds represented by the aforementioned general formula (X-6), the aforementioned formula ( In the case of the compound represented by 5.3) and the compound represented by the aforementioned formula (45.2), the compound represented by the aforementioned formula (i), at least two compounds represented by the aforementioned general formula (ii), the aforementioned general formula (X- 6) The total content of the two compounds represented by the aforementioned formula (5.3) and the compound represented by the aforementioned formula (45.2) is preferably 45 to 75% by mass relative to the total mass of the liquid crystal composition of the present invention , more preferably 50 to 65% by mass, still more preferably 55 to 65% by mass, particularly preferably 58 to 62% by mass.

The liquid crystal composition containing the compound represented by the aforementioned formula (i) and at least two compounds represented by the aforementioned general formula (ii) further contains the two compounds represented by the aforementioned general formula (XIV-2-4) and the aforementioned In the case of the compound represented by the formula (36.2), the compound represented by the aforementioned formula (i), at least two compounds represented by the aforementioned general formula (ii), the 2 compounds represented by the aforementioned general formula (XIV-2-4) The total content of the compound and the compound represented by the aforementioned formula (36.2) is preferably 20 to 45% by mass, more preferably 30 to 40% by mass, and even more preferably 33 to 38% by mass relative to the total mass of the liquid crystal composition of the present invention. quality%.

The liquid crystal composition containing the compound represented by the aforementioned formula (i) and at least two compounds represented by the aforementioned general formula (ii) further contains three compounds represented by the aforementioned general formula (XI-1) and the aforementioned formula ( In the case of the compound represented by 6.6), the compound represented by the aforementioned formula (i), at least two compounds represented by the aforementioned general formula (ii), the three compounds represented by the aforementioned general formula (XI-1), and the aforementioned The total content of the compound represented by formula (6.6) is preferably 30 to 60% by mass, more preferably 40 to 60% by mass, even more preferably 45 to 55% by mass, particularly Preferably it is 47-52 mass %.

The liquid crystal composition containing the compound represented by the aforementioned formula (i) and at least two compounds represented by the aforementioned general formula (ii) further contains the compound represented by the aforementioned formula (44.2) and the compound represented by the aforementioned formula (28.5). In the case of a compound, the total of the compound represented by the aforementioned formula (i), at least two compounds represented by the aforementioned general formula (ii), the compound represented by the aforementioned formula (44.2), and the compound represented by the aforementioned formula (28.5) The content is preferably 40 to 70% by mass, more preferably 45 to 65% by mass, still more preferably 50 to 60% by mass, particularly preferably 53 to 57% by mass, based on the total mass of the liquid crystal composition of the present invention.

The liquid crystal composition containing the compound represented by the aforementioned formula (i) and at least two compounds represented by the aforementioned general formula (ii) further contains two compounds represented by the aforementioned general formula (X-6), the aforementioned formula ( In the case of the compound represented by 28.5), the compound represented by the aforementioned formula (41.2), the compound represented by the aforementioned formula (45.2), and the compound represented by the aforementioned formula (54.1), the compound represented by the aforementioned formula (i), At least two compounds represented by the aforementioned general formula (ii), two compounds represented by the aforementioned general formula (X-6), the compound represented by the aforementioned formula (28.5), the compound represented by the aforementioned formula (41.2), the aforementioned The total content of the compound represented by the formula (45.2) and the compound represented by the aforementioned formula (54.1) is preferably 40 to 70% by mass, more preferably 45 to 65% by mass, relative to the total mass of the liquid crystal composition of the present invention, More preferably, it is 50-60 mass %, Especially preferably, it is 52-56 mass %.

The liquid crystal composition of the present invention preferably does not contain a compound having a structure in which oxygen atoms are bonded to each other such as a peracid (-CO-OO-) structure in the molecule.

When emphasizing the reliability and long-term stability of the liquid crystal composition, the content of the compound having a carbonyl group is preferably 5% by mass or less, more preferably 3% by mass or less, and even more preferably 1% by mass relative to the total mass of the aforementioned composition. It is most preferably not substantially contained at mass % or less.

When emphasizing the stability of UV irradiation, the content of the chlorine atom-substituted compound is preferably 15% by mass or less, more preferably 10% by mass or less, and even more preferably 5% by mass or less, based on the total mass of the composition, Most preferably, it does not contain substantially.

It is preferable to increase the content of the compound whose ring structure is all 6-membered rings in the molecule, preferably to make the content of the compound whose ring structure is all 6-membered rings in the molecule to be 80% by mass or more relative to the total mass of the composition, more preferably 90% by mass or more, more preferably 95% by mass or more, and most preferably constitutes the liquid crystal composition substantially only from compounds whose ring structures in the molecule are all 6-membered rings.

In order to suppress deterioration due to oxidation of the liquid crystal composition, it is preferable to reduce the content of the compound having a cyclohexenylene group as a ring structure, and it is preferable to make the content of the compound having a cyclohexenylene group relative to the total mass of the aforementioned composition be 10% by mass or less, more preferably 5% by mass or less, and still more preferably not substantially contained.

In the case of emphasizing the improvement of the viscosity and the improvement of Tni, it is preferable to reduce the content of the compound having a 2-methylbenzene-1,4-diyl whose hydrogen atom may be substituted by a halogen in the molecule, preferably to have the aforementioned 2-methylbenzene-1,4-diyl compound in the molecule. The content of the methylbenzene-1,4-diyl compound is 10% by mass or less, more preferably 5% by mass or less, and even more preferably not substantially contained, based on the total mass of the composition.

When the compound contained in the composition of the first embodiment of the present invention has an alkenyl group as a side chain, when the aforementioned alkenyl group is bonded to cyclohexane, the number of carbon atoms of the alkenyl group is preferably 2 to 5, On the other hand, when the aforementioned alkenyl group is bonded to benzene, the number of carbon atoms of the alkenyl group is preferably 4 to 5, and it is preferable that the unsaturated bond of the aforementioned alkenyl group is not directly bonded to benzene.

The liquid crystal composition of the present invention may contain a polymerizable compound in order to produce a liquid crystal display element such as PS mode, transverse electric field type PSA mode, or transverse electric field type PSVA mode. As the polymerizable compound that can be used, photopolymerizable monomers that are polymerized by energy rays such as light can be mentioned. A polymeric compound with a liquid crystal skeleton of a ring, etc. More specifically, a difunctional monomer represented by general formula (XX) is preferable.

[chem 226]

In the aforementioned general formula (XX), X ²⁰¹ and X ²⁰² each independently represent a hydrogen atom or a methyl group,

Sp ²⁰¹ and Sp ²⁰² each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms, or -O-(CH ₂ ) _s - (wherein, s represents an integer of 2 to 7, and the oxygen atom is bonded to the aromatic ring Knot),

Z ²⁰¹ represents -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -CF ₂ O-, -OCF ₂ -, -CH ₂ CH ₂ -, -CF ₂ CF ₂ -, -CH= CH-COO-, -CH=CH-OCO-, -COO-CH=CH-, -OCO-CH=CH-, -COO-CH ₂ CH ₂ -, -OCO-CH ₂ CH ₂ -, -CH ₂ CH ₂ -COO-, -CH ₂ CH ₂ -OCO-, -COO-CH ₂ -, -OCO-CH ₂ -, -CH ₂ -COO-, -CH ₂ -OCO-, -CY ¹ =CY ² - (wherein, Y ¹ and Y ² each independently represent a fluorine atom or a hydrogen atom), -C≡C-, or a single bond,

M ²⁰¹ represents a 1,4-phenylene group, a trans-1,4-cyclohexylene group or a single bond, and any hydrogen atoms of all the 1,4-phenylene groups in the formula may be substituted with fluorine atoms.

It is preferable that both X ²⁰¹ and X ²⁰² represent either a diacrylate derivative having a hydrogen atom or a dimethacrylate derivative having a methyl group, and a compound wherein one represents a hydrogen atom and the other represents a methyl group is also preferred. The polymerization rate of these compounds is the fastest for diacrylate derivatives, relatively slow for dimethacrylate derivatives, and intermediate for asymmetric compounds, and a preferred form can be used according to the application. Among PSA display elements, dimethacrylate derivatives are particularly preferred.

Sp ²⁰¹ and Sp ²⁰² each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms, or -O-(CH ₂ ) _s -, preferably at least one of the PSA display elements is a single bond, and preferably both represent a single bond or a form in which one of them represents a single bond and the other represents an alkylene group having 1 to 8 carbon atoms or -O-(CH ₂ ) _s -. In this case, an alkyl group having 1-4 carbon atoms is preferable, and s is preferably 1-4.

Z ²⁰¹ is preferably -OCH ₂ -, -CH ₂ O-, -COO-, -OCO-, -CF ₂ O-, -OCF ₂ -, -CH ₂ CH ₂ -, -CF ₂ CF ₂ -, or a single bond, more preferably -COO-, -OCO-, or a single bond, particularly preferably a single bond.

M ²⁰¹ represents 1,4-phenylene, trans-1,4-cyclohexylene, or a single bond in which any hydrogen atom may be substituted by a fluorine atom, preferably 1,4-phenylene or a single bond. When M ²⁰¹ represents a ring structure other than a single bond, Z ²⁰¹ is preferably a linking group other than a single bond, and when M ²⁰¹ is a single bond, Z ²⁰¹ is preferably a single bond.

From these viewpoints, in the general formula (XX), the ring structure between Sp ²⁰¹ and Sp ²⁰² is specifically preferably the structure described below.

In the aforementioned general formula (XX), when ^M201 represents a single bond and the ring structure is formed of two rings, it preferably represents the following formula (XXa-1) to formula (XXa-5), more preferably represents the formula (XXa- 1) to formula (XXa-3), particularly preferably formula (XXa-1).

[chem 227]

In the aforementioned formula (XXa-1) to formula (XXa-5), both ends are bonded to Sp ²⁰¹ or Sp ²⁰² .

The alignment control ability after polymerization of the polymerizable compound containing these skeletons is most suitable for PSA liquid crystal display elements, and since a good alignment state can be obtained, display unevenness can be suppressed or completely prevented.

As described above, as a polymerizable monomer, at least one compound selected from the group of compounds represented by the general formula (XX-1) to the general formula (XX-4) is preferable, and the general formula (XX-4) is more preferable. -2) The compound represented.

[chem 228]

In the aforementioned general formula (XX-3) and general formula (XX-4), Sp ²⁰ represents an alkylene group having 2 to 5 carbon atoms.

When a monomer is added to the liquid crystal composition of the present invention, polymerization proceeds even in the absence of a polymerization initiator, but a polymerization initiator may be included in order to accelerate polymerization. Examples of the polymerization initiator include benzoin ethers, benzophenones, acetophenones, benzil ketals, acylphosphine oxides, and the like.

The liquid crystal composition in the present invention may further contain a compound represented by general formula (Q) as an antioxidant.

[chem 229]

In the aforementioned general formula (Q), R ^Q represents a straight-chain alkyl group or a branched-chain alkyl group with 1 to 22 carbon atoms, and one or more _CH groups in the alkyl group may be in such a way that the oxygen atoms are not directly adjacent to each other. Substituted by -O-, -CH=CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF ₂ O-, -OCF ₂ -, M ^Q represents trans-1,4 -cyclohexylene, 1,4-phenylene, or a single bond.

R ^Q represents a straight-chain or branched-chain alkyl group with 1 to 22 carbon atoms, and one or more _CH2 groups in the alkyl group can be replaced by -O-, -CH= in such a way that the oxygen atoms are not directly adjacent to each other. CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF ₂ O-, -OCF ₂ -substituted, preferably straight-chain alkyl and straight-chain alkane with 1 to 20 carbon atoms Oxygen, 1 CH ₂ group is substituted by -OCO- or -COO- straight chain alkyl, branched chain alkyl, branched alkoxy, 1 CH ₂ group is substituted by -OCO- or -COO- branched chain alkyl group, more preferably a straight chain alkyl group with 1 to 10 carbon atoms, a straight chain alkyl group in which one _CH2 group is substituted with -OCO- or -COO-, a branched chain alkyl group, a branched chain alkyl group An oxy group and a branched alkyl group in which one CH ₂ group is substituted with -OCO- or -COO-.

M ^Q represents trans-1,4-cyclohexylene, 1,4-phenylene or a single bond, preferably trans-1,4-cyclohexylene or 1,4-phenylene.

The compound represented by the aforementioned general formula (Q) is preferably at least one compound selected from the group of compounds represented by the following general formula (Q-a) to general formula (Q-d), more preferably the general formula (Q-a) and/or Or the compound represented by (Q-c).

[chem 230]

In the aforementioned formula, R ^Q1 is preferably a straight chain alkyl group or a branched chain alkyl group with 1 to 10 carbon atoms, R ^Q2 is preferably a straight chain alkyl group or a branched chain alkyl group with 1 to 20 carbon atoms, and R ^Q3 is preferably A straight-chain alkyl group, branched-chain alkyl group, straight-chain alkoxy group or branched-chain alkoxy group with 1 to 8 carbon atoms, L ^Q is preferably a straight chain alkylene group or branched chain alkylene group with 1 to 8 carbon atoms base. Among them, the compound represented by the general formula (Q) is preferably a compound represented by the following formula (Qa-1) and/or (Qc-1).

[chem 231]

In the liquid crystal composition of the invention of the present application, preferably one or two compounds represented by the aforementioned general formula (Q) are contained, more preferably one to five compounds are contained, the content of which is relative to the total mass of the liquid crystal composition of the present invention, Preferably it is 0.001-1 mass %, Preferably it is 0.001-0.1 mass %, Preferably it is 0.001-0.05 mass %.

<Liquid crystal display element>

The liquid crystal composition containing a polymerizable compound of the present invention can be polymerized by irradiating ultraviolet rays with the polymerizable compound contained therein, so as to give liquid crystal alignment ability, and use it to control the amount of transmitted light by utilizing the birefringence of the liquid crystal composition liquid crystal display element. As a liquid crystal display element, ECB-LCD, VA-LCD, VA-IPS-LCD, FFS-LCD, AM-LCD (active matrix liquid crystal display element), TN (nematic liquid crystal display element), STN-LCD ( Super twisted nematic liquid crystal display elements), OCB-LCD and IPS-LCD (in-plane switching liquid crystal display elements) are useful, especially useful for AM-LCD, and can be used in transmissive or reflective liquid crystal display elements.

For the two substrates of the liquid crystal cell used in the liquid crystal display element, a flexible transparent material such as glass or plastic can be used, and an opaque material such as silicon can be used on the other hand. A transparent substrate with a transparent electrode layer can be fabricated by, for example, sputtering indium tin oxide (ITO) on a transparent substrate such as a glass plate.

A color filter can be produced by, for example, a pigment dispersion method, a printing method, an electroplating method, or a dyeing method. When a method for producing a color filter using a pigment dispersion method is described as an example, a curable coloring composition for a color filter is applied to the transparent substrate, subjected to patterning treatment, and then heated or Cured by exposure to light. By performing this step for each of the three colors of red, green, and blue, a pixel portion for a color filter can be produced. In addition, pixel electrodes provided with active elements such as TFTs and thin film diodes may be provided on the substrate.

The aforementioned substrates were opposed to each other with the transparent electrode layer on the inner side. At this time, the distance between the substrates can be adjusted by the spacer. At this time, it is preferable to adjust so that the thickness of the light control layer obtained may become 1-100 micrometers. It is more preferably 1.5 to 10 μm. When using a polarizing plate, it is preferable to adjust the product of the refractive index anisotropy Δn of the liquid crystal and the cell thickness d so that the contrast becomes the maximum. In addition, when there are two polarizing plates, the polarization axis of each polarizing plate can be adjusted so that the viewing angle and contrast can be improved. Furthermore, a retardation film for widening the viewing angle can also be used. Examples of the spacer include columnar spacers made of glass particles, plastic particles, alumina particles, photoresist materials, and the like. Then, a sealant such as an epoxy-based thermosetting composition is screen-printed on the substrate so that a liquid crystal injection port is provided, the substrates are bonded together, and the sealant is thermally cured by heating.

As a method of sandwiching the liquid crystal composition containing a polymerizable compound between two substrates, a common vacuum injection method, an ODF method, or the like can be used. However, in the vacuum implantation method, although drip marks do not occur, there is a problem that implantation marks remain. In the invention of this application, it can be used more suitably for the display element manufactured by the ODF method. In the liquid crystal display element manufacturing process of the ODF method, by using a dispenser on either the back plate or the front plate, the epoxy-based photothermal and curable sealant is drawn into a closed-loop soil embankment shape. A predetermined amount of the liquid crystal composition is dropped thereinto under degassing, and then the front sheet and the back sheet are bonded together to manufacture a liquid crystal display element. The liquid crystal composition of the present invention can be used preferably because it can stably perform the dropping of the liquid crystal composition in the ODF process.

As a method of polymerizing a polymerizable compound, a method of polymerizing by irradiating active energy rays such as ultraviolet rays or electron beams singly or in combination or sequentially is preferred because a moderate polymerization rate is desired in order to obtain good alignment performance of liquid crystals. In the case of ultraviolet light, either a polarized light source or a non-polarized light source can be used. In addition, when polymerizing a liquid crystal composition containing a polymerizable compound sandwiched between two substrates, at least the substrate on the irradiated side must have appropriate transparency with respect to active energy rays. Alternatively, a method may be used in which only a specific portion is polymerized using a mask during light irradiation, and then the orientation state of the unpolymerized portion is changed by changing conditions such as an electric field, a magnetic field, or temperature, and then polymerized by further irradiating active energy rays. In particular, when performing ultraviolet exposure, it is preferable to perform ultraviolet exposure while applying an AC electric field to the liquid crystal composition containing a polymerizable compound. The applied AC electric field is preferably AC with a frequency of 10 Hz to 10 kHz, more preferably 60 Hz to 10 kHz, and the voltage is selected depending on the desired pretilt angle of the liquid crystal display element. That is to say, the pretilt angle of the liquid crystal display element can be controlled by the applied voltage. In a transverse electric field type MVA mode liquid crystal display element, it is preferable to control the pretilt angle to 80° to 89.9° from the viewpoint of alignment stability and contrast.

The temperature at the time of irradiation is preferably within a temperature range capable of maintaining the liquid crystal state of the liquid crystal composition of the present invention. The polymerization is preferably carried out at a temperature close to room temperature, ie typically at a temperature of 15 to 35°C. As a lamp that generates ultraviolet rays, a metal halide lamp, a high-pressure mercury lamp, an ultrahigh-pressure mercury lamp, or the like can be used. In addition, as the wavelength of the ultraviolet rays to be irradiated, it is preferable to irradiate ultraviolet rays in a wavelength region other than the absorption wavelength region of the liquid crystal composition, and it is preferable to filter the ultraviolet rays and use them if necessary. The intensity of the irradiated ultraviolet rays is preferably 0.1 mW/cm ² to 100 W/cm ² , more preferably 2 mW/cm ² to 50 W/cm ² . The energy of the ultraviolet rays to be irradiated can be appropriately adjusted, and is preferably 10 mJ/cm ² to 500 J/cm ² , more preferably 100 mJ/cm ² to 200 J/cm ² . When irradiating ultraviolet rays, the intensity can be changed. The time for irradiating ultraviolet rays can be appropriately selected according to the intensity of ultraviolet rays to be irradiated, and is preferably 10 seconds to 3600 seconds, more preferably 10 seconds to 600 seconds.

The liquid crystal display element using the liquid crystal composition of the present invention is a useful element having both high-speed response and display defect suppression, and is especially useful for active matrix drive liquid crystal display elements, and can be applied to VA mode, PSVA mode, PSA mode, and IPS (In-Plane Switching) mode, VA-IPS mode, FFS (Fringe Field Switching) mode, or ECB mode.

Hereinafter, preferred embodiments of the liquid crystal display of the present invention will be described in detail with reference to the drawings.

1 is a cross-sectional view showing a liquid crystal display element including two substrates facing each other, a sealing material provided between the substrates, and liquid crystal sealed in a sealing region surrounded by the sealing material.

Specifically, the specific form of the following liquid crystal display element is shown: a back plate with a TFT layer 102 and a pixel electrode 103 provided on a first substrate 100, and a passivation film 104 and a first alignment film 105 are provided from above; On the second substrate 200, a black matrix 202, a color filter 203, a planarization film (protective layer) 201, and a transparent electrode 204 are provided, and a second alignment film 205 is provided on the front facing the aforementioned backplane. plate; a sealing material 301 arranged between the aforementioned substrates; and a liquid crystal layer 303 sealed in the sealing area surrounded by the aforementioned sealing material, and protrusions (columnar spacers) 302, 304 are provided on the surface of the substrate in contact with the aforementioned sealing material 301 .

The material of the first substrate or the second substrate is not particularly limited as long as it is substantially transparent, and glass, ceramics, plastic, and the like can be used. As the plastic substrate, cellulose derivatives such as cellulose, triacetyl cellulose, and diacetyl cellulose; polycycloolefin derivatives, polyesters such as polyethylene terephthalate, and polyethylene naphthalate can be used; Polyolefins such as polypropylene and polyethylene; polycarbonate, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polyamide, polyimide, polyimide amide, polystyrene, polyacrylate, poly Methyl methacrylate, polyethersulfone, polyarylate, and inorganic-organic composite materials such as glass fiber-epoxy resin, glass fiber-acrylic resin, etc.

In addition, when using a plastic substrate, it is preferable to provide a barrier film. The function of the barrier film is to reduce the moisture permeability of the plastic substrate and improve the reliability of the electrical characteristics of the liquid crystal display element. As the barrier film, as long as it has high transparency and low water vapor permeability, it is not particularly limited. Generally, inorganic materials such as silicon oxide are used and vapor deposition, sputtering, and chemical vapor deposition (CVD method) are used. ) formed film.

In the present invention, the same material or different materials may be used as the first substrate or the second substrate, and are not particularly limited. When a glass substrate is used, since a liquid crystal display element excellent in heat resistance and dimensional stability can be produced, it is preferable. In addition, when it is a plastic substrate, it is suitable for a manufacturing method by a roll-to-roll method and is suitable for weight reduction or flexibility, and is preferable. Moreover, if it aims at imparting flatness and heat resistance, when combining a plastic substrate and a glass substrate, a favorable result can be obtained.

In addition, in the embodiments described later, a substrate is used as the material of the first substrate 100 or the second substrate 200 .

Regarding the back plate, a TFT layer 102 and a pixel electrode 103 are provided on the first substrate 100 . These are produced by usual array processes. A passivation film 104 and a first alignment film 105 are provided thereon to obtain a backplane.

The passivation film 104 (also referred to as an inorganic protective film) is a film for protecting the TFT layer, and is usually formed of a nitride film (SiNx), an oxide film (SiOx) or the like by using a chemical vapor deposition (CVD) technique or the like.

In addition, the first alignment film 105 is a film having a function of aligning liquid crystals, and generally a polymer material such as polyimide is often used. As the coating solution, an alignment agent solution composed of a polymer material and a solvent can be used. Since the alignment film may interfere with the adhesive force with the sealing material, it is pattern-coated in the sealing area. For coating, a printing method such as a flexographic printing method, or a droplet discharge method such as an inkjet can be used. After the coated alignment agent solution is temporarily dried to evaporate the solvent, it is baked to make it cross-linked and solidified. Then, an orientation treatment is performed in order to express an orientation function.

Orientation treatment is usually performed by a rubbing method. Liquid crystal orientation is generated by rubbing in one direction on the polymer film formed as described above using a rubbing cloth made of rayon-like fibers.

In addition, a photo-alignment method may also be used. The photo-alignment method is a method of generating alignment energy by irradiating polarized light on an alignment film containing a photosensitive organic material, and does not generate substrate damage or dust caused by the rubbing method. As an example of the organic material in the photo-alignment method, there is a material containing a dichroic dye. As a dichroic dye, a material having a group (hereinafter referred to simply as a photo-orientation group) that produces a photoreaction that becomes the origin of liquid crystal alignment energy can be used: Molecular orientation induction or isomerization reaction (for example: azophenyl group), dimerization reaction (for example: cinnamoyl group), photocrosslinking reaction (for example: benzophenone group), or photolysis reaction (for example: poly imide groups). The applied alignment agent solution is temporarily dried to evaporate the solvent, and then irradiated with light having an arbitrary orientation (polarized light), whereby an alignment film having alignment capability in an arbitrary direction can be obtained.

On one front plate, a black matrix 202 , a color filter 203 , a planarizing film 201 , a transparent electrode 204 , and a second alignment film 205 are provided on a second substrate 200 .

The black matrix 202 is produced by, for example, a pigment dispersion method. Specifically, on the second substrate 200 provided with the barrier film 201 , a colored resin liquid obtained by uniformly dispersing a black colorant for forming a black matrix is applied to form a colored layer. Then, the colored layer is baked to be cured. A photoresist is coated thereon and prebaked. After exposing the photoresist through the mask pattern, development is performed to pattern the colored layer. Then, the photoresist layer is peeled off, and the colored layer is baked to complete the black matrix 202 .

Alternatively, a photoresist-type pigment dispersion can also be used. In this case, after applying and prebaking a photoresist-type pigment dispersion, exposure is performed through a mask pattern, and development is performed to pattern the colored layer. Then, the photoresist layer is peeled off, and the colored layer is baked to complete the black matrix 202 .

The color filter 203 is produced by a pigment dispersion method, a plating method, a printing method, a dyeing method, or the like. Taking the pigment dispersion method as an example, the colored resin liquid obtained by uniformly dispersing (for example, red) pigments is coated on the second substrate 200, and after curing by baking, a photoresist is coated thereon and pre-baked. After exposing the photoresist through a mask pattern, it is developed and patterned. The photoresist layer is then stripped and rebaked to complete the (red) color filter 203 . The sequence of colors produced is not particularly limited. The same is performed to form the green color filter 203 and the blue color filter 203 .

The transparent electrode 204 is provided on the color filter 203 (a protective layer ( 201 ) for surface flattening is provided on the color filter 203 as necessary). The transparent electrode 204 is preferably one with high transmittance, and one with low resistance. The transparent electrode 204 is formed with an oxide film such as ITO by sputtering or the like.

In addition, a passivation film may be provided on the transparent electrode 204 for the purpose of protecting the above-mentioned transparent electrode 204 .

The second alignment film 205 is the same as the aforementioned first alignment film 105 .

The specific forms of the back plate and the front plate used in the present invention have been described above, but the present application is not limited to the specific forms, and can be freely changed according to the desired form of the liquid crystal display element.

The shape of the above-mentioned columnar spacer is not particularly limited, and its horizontal section can be made into a variety of shapes such as circular, quadrilateral, etc., but considering the misalignment margin during the process, it is particularly preferable to make the horizontal section into a circle shape or regular polygon. In addition, the shape of the protrusion is preferably a truncated cone or a truncated pyramid.

The material of the above-mentioned columnar spacer is not particularly limited as long as it is insoluble in the sealing material or the organic solvent used in the sealing material, or insoluble in the liquid crystal, and is preferably a synthetic material from the viewpoint of processing and weight reduction. Resin (curable resin). On the other hand, the aforementioned protrusions can be provided on the surface of the first substrate that is in contact with the sealing material by a photolithography method or a droplet discharge method. For such reasons, it is preferable to use a photocurable resin suitable for photolithography methods and droplet discharge methods.

As an example, the case where the said columnar spacer is obtained by the photolithography method is demonstrated. FIG. 2 is a view showing an exposure treatment process using a pattern for columnar spacer production formed on a black matrix as a photomask pattern.

On the transparent electrode 204 of the aforementioned front plate, a resin solution for forming columnar spacers (without coloring agent) is applied. Then, the resin layer 402 is baked to be cured. A photoresist is coated thereon and prebaked. After exposing the photoresist through the mask pattern 401, development is performed to pattern the resin layer. Then, the photoresist layer is peeled off, and the resin layer is baked to complete the columnar spacer ( 302 , 304 in FIG. 1 ).

The formation position of the columnar spacer can be determined as a desired position according to the mask pattern. Therefore, both the inside of the sealing region and the outside of the sealing region (sealing material application portion) of the liquid crystal display element can be produced simultaneously. In addition, the columnar spacer is preferably formed on the black matrix without lowering the quality of the sealing region. The column spacers produced by photolithography are sometimes called column spacers or photo spacers.

The spacer can be made of a mixture of negative water-soluble resins such as PVA-stilbazo photosensitive resins, polyfunctional acrylic monomers, acrylic copolymers, and triazole initiators. Alternatively, there is also a method of using a color resin in which a colorant is dispersed in a polyimide resin. In the present invention, it is not particularly limited, and the spacer can be obtained from a known material according to the liquid crystal to be used and the compatibility with the sealing material.

In this way, after the columnar spacer is provided on the surface of the front plate serving as the sealing region, the sealing material is applied to the surface of the back plate that is in contact with the sealing material (301 in FIG. 1 ).

The material of the sealing material is not particularly limited, and a curable resin composition obtained by adding a polymerization initiator to an epoxy-based, acrylic-based photocurable, thermosetting, or photothermal curable resin can be used. In addition, in order to control moisture permeability, elastic modulus, viscosity, etc., fillers composed of inorganic substances and organic substances may be added. The shape of these fillers is not particularly limited, and there are spherical, fibrous, amorphous and the like. In addition, a spherical or fibrous spacer having a monodisperse diameter may be mixed in order to control the cell spacing well, or a fibrous material that is easy to be entangled with the protrusions on the substrate may be mixed in order to further enhance the adhesive force with the substrate. The diameter of the fibrous substance used at this time is desirably about 1/5 to 1/10 or less of the cell interval, and the length of the fibrous substance is desirably shorter than the seal coat width.

In addition, the material of the fibrous substance is not particularly limited as long as a predetermined shape can be obtained, and synthetic fibers such as cellulose, polyamide, and polyester, and inorganic materials such as glass and carbon can be appropriately selected.

As a method of applying the sealant, there are a printing method and a dispensing method, but the dispensing method in which the usage amount of the sealant is small is preferable. The coating position of the sealant is usually on the black matrix so as not to adversely affect the sealing area. In order to form a liquid crystal dripping region in the next step (so that the liquid crystal does not leak out), the sealing material coating shape is formed in a closed loop shape.

The liquid crystal was dripped on the closed loop shape (sealed region) of the front plate to which the said sealing material was apply|coated. Usually an allocator is used. In order to make the amount of dropped liquid crystal equal to the volume of the liquid crystal cell, it is basically the same amount as the volume obtained by multiplying the height of the columnar spacer by the seal coating area. However, when the amount of dropped liquid crystal is appropriately adjusted for liquid crystal leakage in the cell bonding step and optimization of display characteristics, liquid crystal dropping positions may be dispersed.

Next, the back sheet was bonded to the front sheet on which the sealing material was applied and the liquid crystal was dripped. Specifically, the front plate and the back plate are adsorbed on a platform having a mechanism capable of attracting substrates such as an electrostatic chuck, the second alignment film of the front plate is opposed to the first alignment film of the back plate, and placed on the sealing material. A position (distance) where there is no contact with another substrate. In this state, the inside of the system is decompressed. After the decompression is completed, confirm the bonding position of the front plate and the back plate and adjust the positions of the two substrates at the same time (alignment operation). After the adjustment of the bonding position is completed, the substrate is brought close to the position where the sealing material on the front plate contacts the back plate. In this state, an inert gas was filled into the system, and the pressure was gradually released to return to normal pressure. At this time, the front plate and the back plate are bonded together by atmospheric pressure, and the cell intervals are formed at the height positions of the columnar spacers. In this state, the sealing material is irradiated with ultraviolet rays to cure the sealing material, thereby forming a liquid crystal cell. Then, according to the situation, add a heating process to accelerate the curing of the sealing material. In order to enhance the adhesive force of the sealing material and improve the reliability of electrical characteristics, a heating process is often added.

Example

The following examples are given to further describe the present invention in detail, but the present invention is not limited to these examples. In addition, "%" in the composition of a following Example and a comparative example means "mass %".

In the examples, the characteristics measured are as follows.

Tni: Nematic-isotropic liquid phase transition temperature (°C)

Δn: Refractive index anisotropy at 298K (alias: birefringence)

Δε: Dielectric constant anisotropy at 298K

η: Viscosity at 293K (mPa·s)

γ1: rotational viscosity at 298K (mPa s)

VHR: Voltage retention rate (%) at 323K at a frequency of 60Hz and an applied voltage of 5V

VHR after heat resistance test: The TEG (test element set) for electro-optical characteristic evaluation sealed with the liquid crystal composition sample was kept in a constant temperature chamber at 120° C. for 1.5 hours, and then measured under the same conditions as the above-mentioned VHR measurement method.

Burn-in:

The burn-in evaluation of liquid crystal display elements is to measure the test time until the afterimage of the fixed pattern reaches an unacceptable level of afterimage when the entire screen is uniformly displayed after displaying a predetermined fixed pattern in the display area for an arbitrary test time.

1) The so-called test time here means the display time of a fixed pattern, and the longer the time, the more suppressed the occurrence of afterimage and the higher the performance.

2) The unacceptable afterimage level refers to the level at which afterimages that are unacceptable in the pass/fail judgment are observed.

Drip marks:

The drop mark evaluation of the liquid crystal display is to visually evaluate the drop mark that white floats in the case of a solid black display in the following 5 stages.

5: No drip marks (excellent)

4: There are very few drip marks but at an allowable level (good)

3: There are a small amount of drip marks, at the level of the border line for the judgment of pass or fail (conditionally allowed)

2: There are drip marks, unacceptable level (impossible)

1: There are drip marks, quite bad (poor)

Process Suitability:

The suitability of the process is to use a constant volume metering pump in the ODF process, and measure the drops of "0~100 times, 101~200 times, 201~300 times,..." every 100 times in the form of 100pL every time. The quality of the liquid crystal dropped 100 times was evaluated by the number of drops at which the deviation of the quality reached a size not suitable for the ODF process.

It can be said that it can be dripped stably over a long period of time as the number of times of dropping increases, and it can be said that the process suitability is high.

Solubility at low temperature:

Solubility evaluation at low temperature is performed by weighing 1 g of the liquid crystal composition in a 2 mL sample bottle after preparing the liquid crystal composition, and placing it in a temperature-controlled test tank under the following operating conditions "-20°C (hold for 2 hours) →Temperature rise (0.1°C/min)→0°C (hold for 2 hours)→Temperature rise (0.1°C/min)→20°C (hold for 1 hour)→Temperature drop (-0.1°C/min)→0°C (hold for 2 hours) Hours) → temperature drop (-0.1°C/min) → -20°C" as one cycle, the temperature change was continuously given to visually observe the generation of precipitates from the liquid crystal composition, and the test time when the precipitates were observed was measured.

The longer the test time, the more stable the liquid crystal phase can be maintained over a long period of time, and the solubility at low temperature is good.

Volatility/Manufacturing Plant Pollution:

In the evaluation of the volatility of the liquid crystal material, the foaming of the liquid crystal material was visually observed while irradiating the operating state of the vacuum stirring defoaming mixer with a stroboscope. Specifically, 0.75 kg of liquid crystal composition was placed in a dedicated container of a vacuum stirring defoaming mixer with a capacity of 2.0 L, and vacuum stirring was performed at a revolution speed of 20S ^-1 and an autorotation speed of 10S ^-1 under a degassing pressure of 10 kPa. Defoaming mixer, measure the time until the onset of foaming.

The longer the time until the start of foaming, the less volatilized and less likely to contaminate the production equipment, so it shows high performance.

(Embodiments 1-3)

The compositions shown in Table 1 were prepared, and an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 was produced. Table 2 shows the evaluation results of the obtained composition and liquid crystal display.

(comparative example 1)

A composition shown in Table 1 not containing the compound represented by the aforementioned general formula (ii) was prepared, and an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 was produced. Table 2 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 232]

[Table 1]

[Table 2]

Compared with the composition prepared in Comparative Example 1, the composition prepared in Example 1 can be dropped stably over a long period of time in the ODF process, and its solubility at low temperature is remarkably excellent. In addition, in the liquid crystal display produced in Example 1, burn-in was suppressed compared with the liquid crystal display produced in Comparative Example 1.

(Embodiments 4-7)

Compositions shown in Table 3 were prepared to produce IPS liquid crystal displays having the structures shown in FIGS. 1 and 2 . Table 4 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 233]

[table 3]

[Table 4]

(Embodiments 8-11)

The compositions shown in Table 5 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 6 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 234]

[table 5]

[Table 6]

(Example 12-15)

The compositions shown in Table 7 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 8 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 235]

[Table 7]

[Table 8]

(Example 16-19)

The compositions shown in Table 9 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 10 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 236]

[Table 9]

[Table 10]

(Examples 20-23)

The compositions shown in Table 11 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 12 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 237]

[Table 11]

[Table 12]

(Examples 24-27)

The compositions shown in Table 13 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 14 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 238]

[Table 13]

[Table 14]

(Examples 28-31)

The compositions shown in Table 15 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 16 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 239]

[Table 15]

[Table 16]

(Examples 32-35)

The compositions shown in Table 17 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 18 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 240]

[Table 17]

[Table 18]

(Examples 36-39)

The compositions shown in Table 19 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 20 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 241]

[Table 19]

[Table 20]

(Examples 40-43)

The compositions shown in Table 21 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 22 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 242]

[Table 21]

[Table 22]

(Examples 44-47)

The compositions shown in Table 23 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 24 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 243]

[Table 23]

[Table 24]

(Examples 48-51)

The compositions shown in Table 25 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 26 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 244]

[Table 25]

[Table 26]

(Examples 52-55)

The compositions shown in Table 27 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 28 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 245]

[Table 27]

[Table 28]

(Examples 56-59)

The compositions shown in Table 29 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 30 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 246]

[Table 29]

[Table 30]

(Examples 60-63)

The compositions shown in Table 31 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 32 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 247]

[Table 31]

[Table 32]

(Examples 64-67)

The compositions shown in Table 33 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 34 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 248]

[Table 33]

[Table 34]

(Examples 68-71)

The compositions shown in Table 35 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 36 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 249]

[Table 35]

[Table 36]

(Examples 72-75)

The compositions shown in Table 37 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 38 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 250]

[Table 37]

[Table 38]

(Embodiments 76-79)

The compositions shown in Table 39 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 40 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 251]

[Table 39]

[Table 40]

(Examples 80-83)

The compositions shown in Table 41 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 42 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 252]

[Table 41]

[Table 42]

(Examples 84-87)

The compositions shown in Table 43 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 44 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 253]

[Table 43]

[Table 44]

(Examples 88-91)

The compositions shown in Table 45 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 46 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 254]

[Table 45]

[Table 46]

(Examples 92-95)

The compositions shown in Table 47 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 48 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 255]

[Table 47]

[Table 48]

(Examples 96-99)

The compositions shown in Table 49 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 50 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 256]

[Table 49]

[Table 50]

(Examples 100-103)

The compositions shown in Table 51 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 52 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 257]

[Table 51]

[Table 52]

(Examples 104-107)

The compositions shown in Table 53 were prepared to produce an IPS liquid crystal display having the structure shown in FIGS. 1 and 2 . Table 54 shows the evaluation results of the obtained composition and liquid crystal display.

[chem 258]

[Table 53]

[Table 54]

The liquid crystal composition prepared in the above examples has low viscosity and good solubility at low temperature. In addition, the lack of volatility prevents device contamination. In addition, in the ODF process, variations in the dripping amount of the liquid crystal composition can be suppressed, and a liquid crystal display can be produced stably over a long period of time. In addition, the liquid crystal display produced in the examples has excellent heat resistance and maintains stable display characteristics for a long time.

Industrial availability

The liquid crystal composition with positive dielectric constant anisotropy of the present invention has good solubility at low temperature, and the change of resistivity and voltage retention due to heat and light is very small, so the practicability of the product is high, including Its liquid crystal display element can achieve high-speed response. In addition, since the liquid crystal composition can be continuously and stably dropped in the manufacturing process of the liquid crystal display element, it is possible to suppress display defects caused by the process and to manufacture with a high yield, so it is very useful.

Symbol Description

100 1st substrate

102TFT layer

103 pixel electrodes

104 passivation layer

105 1st alignment film

200 second substrate

201 planarization film

202 black matrix

203 color filter

204 transparent electrode

205 2nd orientation film

301 sealing material

302 protrusions (columnar spacers)

303 liquid crystal layer

304 protrusions (columnar spacers)

401 mask pattern

402 resin layer

Claims (48)

1. a liquid-crystal composition, is characterized in that, containing at least a kind of compound represented by the compound represented by following formula (i) and following general formula (ii),

[changing 1]

[changing 2]

In described formula, R ^iiarepresent the thiazolinyl of carbonatoms 2 ~ 5, R ^iibrepresent the alkyl of carbonatoms 1 ~ 5 or the alkoxyl group of carbonatoms 1 ~ 4.

2. liquid-crystal composition as claimed in claim 1, it is further containing at least a kind of compound represented by following general formula (L),

[changing 3]

In described formula,

R ^l1and R ^l2represent the alkyl of carbonatoms 1 ~ 8 independently of one another, 1 in this alkyl or at least 2 non-adjacent-CH ₂-can be replaced by-CH=CH-,-C ≡ C-,-O-,-CO-,-COO-or-OCO-independently of one another,

OL represents 0,1,2 or 3,

B ^l1, B ^l2and B ^l3represent the group be selected from the group be made up of following group independently of one another:

(a) Isosorbide-5-Nitrae-cyclohexylidene, the 1-CH existed in this group ₂-or adjacent at least 2-CH ₂-can-O-be substituted by; With

(b) Isosorbide-5-Nitrae-phenylene, the 1-CH=existed in this group or at least 2 not adjacent-CH=can be substituted by-N=,

Above-mentioned group (a) and group (b) can be replaced by cyano group, fluorine atom or chlorine atom independently of one another,

L ^l1and L ^l2represent singly-bound ,-CH independently of one another ₂cH ₂-,-(CH ₂) ₄-,-OCH ₂-,-CH ₂o-,-COO-,-OCO-,-OCF ₂-,-CF ₂o-,-CH=N-N=CH-,-CH=CH-,-CF=CF-or-C ≡ C-,

OL is 2 or 3 and L ^l2when existing multiple, they can identical also can be different, OL is 2 or 3 and B ^l3when existing multiple, they can identical also can be different, but except compound represented by described general formula (ii).

3. liquid-crystal composition as claimed in claim 1, it is further containing at least a kind of compound represented by following general formula (M),

[changing 4]

In described formula,

R ^m1represent the alkyl of carbonatoms 1 ~ 8,1 in this alkyl or at least 2 non-adjacent-CH ₂-can be replaced by-CH=CH-,-C ≡ C-,-O-,-CO-,-COO-or-OCO-independently of one another,

PM represents 0,1,2,3 or 4,

C ^m1and C ^m2represent the group be selected from the group be made up of following group independently of one another:

(d) Isosorbide-5-Nitrae-cyclohexylidene, the 1-CH existed in this group ₂-or adjacent at least 2-CH ₂-can-O-or-S-be substituted by); With

(e) Isosorbide-5-Nitrae-phenylene, the 1-CH=existed in this group or at least 2 not adjacent-CH=can be substituted by-N=,

Above-mentioned group (d) and group (e) can be replaced by cyano group, fluorine atom or chlorine atom independently of one another,

K ^m1and K ^m2represent singly-bound ,-CH independently of one another ₂cH ₂-,-(CH ₂) ₄-,-OCH ₂-,-CH ₂o-,-OCF ₂-,-CF ₂o-,-COO-,-OCO-or-C ≡ C-,

PM is 2,3 or 4 and K ^m1when existing multiple, they can identical also can be different, PM is 2,3 or 4 and C ^m2when existing multiple, they can identical also can be different,

X ^m1and X ^m3represent hydrogen atom, chlorine atom or fluorine atom independently of one another,

X ^m2represent hydrogen atom, fluorine atom, chlorine atom, cyano group, trifluoromethyl, fluorine methoxyl group, difluoro-methoxy, trifluoromethoxy or 2,2,2-trifluoroethyl, but except compound represented by described formula (i).

4. liquid-crystal composition as claimed in claim 3, containing at least a kind of compound represented by following general formula (XI) as at least a kind of compound represented by described general formula (M),

[changing 5]

In described formula, X ¹¹¹to X ¹¹⁷represent fluorine atom or hydrogen atom independently of one another, X ¹¹¹to X ¹¹⁷in at least one represent fluorine atom, R ¹¹⁰represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4, Y ¹¹represent fluorine atom or-OCF ₃.

5. liquid-crystal composition as claimed in claim 4, relative to the compound represented by the following formula (45.4) that the total mass of liquid-crystal composition contains at least 4 quality % as at least a kind of compound represented by described general formula (XI),

[changing 6]

6. liquid-crystal composition as claimed in claim 3, containing at least a kind of compound represented by following general formula (IX-1) as at least a kind of compound represented by described general formula (M),

[changing 7]

In described formula, R ⁹represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4, X ⁹²represent hydrogen atom or fluorine atom, Y ⁹represent fluorine atom or-OCF ₃.

7. liquid-crystal composition as claimed in claim 6, relative to the compound represented by the following formula (28.5) that the total mass of liquid-crystal composition contains at least 13 quality % as at least a kind of compound represented by described general formula (IX-1),

[changing 8]

8. liquid-crystal composition as claimed in claim 3, containing at least a kind of compound represented by following general formula (IX-2) as at least a kind of compound represented by described general formula (M),

[changing 9]

In described formula, R ⁹represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4, X ⁹¹and X ⁹²represent hydrogen atom or fluorine atom independently of one another, Y ⁹represent fluorine atom, chlorine atom or-OCF ₃.

9. liquid-crystal composition as claimed in claim 8, containing at least a kind of compound represented by following general formula (IX-2-2) as at least a kind of compound represented by described general formula (IX-2),

[changing 10]

In described formula, R ⁹represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4.

10. liquid-crystal composition as claimed in claim 9, relative to the compound represented by the following formula (31.2) that the total mass of liquid-crystal composition contains at least 11 quality % as at least a kind of compound represented by described general formula (IX-2-2),

[changing 11]

11. liquid-crystal compositions as claimed in claim 9, contain more than 0.5 quality % relative to the total mass of liquid-crystal composition and the compound represented by following formula (31.4) being less than 3 quality % as at least a kind of compound represented by described general formula (IX-2-2)

[changing 12]

12. liquid-crystal compositions as claimed in claim 8, containing at least a kind of compound represented by following general formula (IX-2-5) as at least a kind of compound represented by described general formula (IX-2),

[changing 13]

In described formula, R ⁹represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4.

13. liquid-crystal compositions as claimed in claim 12, contain more than 0.5 quality % relative to the total mass of liquid-crystal composition and the compound represented by formula (34.5) being less than 10 quality % as at least a kind of compound represented by described general formula (IX-2-5)

[changing 14]

14. liquid-crystal compositions as claimed in claim 12, relative to the compound represented by the formula (34.1) that the total mass of liquid-crystal composition contains at least 8 quality % as at least a kind of compound represented by described general formula (IX-2-5),

[changing 15]

15. liquid-crystal compositions as claimed in claim 2, containing at least a kind of compound represented by general formula (V-1) as at least a kind of compound represented by described general formula (L),

[changing 16]

In described formula, R ⁵¹and R ⁵²represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4 independently of one another, X ⁵¹and X ⁵²represent fluorine atom or hydrogen atom independently of one another.

16. liquid-crystal compositions as claimed in claim 15, described X ⁵¹and X ⁵²in any one be hydrogen atom, another one is fluorine atom.

17. liquid-crystal compositions as claimed in claim 16, at least one containing the compound represented by formula (21.1) and the compound represented by formula (22.1) as at least a kind of compound represented by described general formula (V-1),

[changing 17]

[changing 18]

18. liquid-crystal compositions as claimed in claim 3, containing at least a kind of compound represented by general formula (X-2) as at least a kind of compound represented by described general formula (M),

[changing 19]

In described formula, X ¹⁰²with X ¹⁰³represent fluorine atom or hydrogen atom independently of one another, Y ¹⁰represent fluorine atom, chlorine atom or-OCF ₃, R ¹⁰represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4.

19. liquid-crystal compositions as claimed in claim 18, containing at least a kind of compound represented by following general formula (X-2-1) or following general formula (X-2-2) as at least a kind of compound represented by described general formula (X-2),

[changing 20]

[changing 21]

In described formula, R ¹⁰represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4.

20. liquid-crystal compositions as claimed in claim 19, containing the compound represented by following formula (39.2) and/or the compound represented by following formula (40.2),

[changing 22]

[changing 23]

21. liquid-crystal compositions as claimed in claim 3, containing at least a kind of compound represented by following general formula (X-1) as at least a kind of compound represented by described general formula (M),

[changing 24]

In described formula, X ¹⁰¹~ X ¹⁰³represent fluorine atom or hydrogen atom independently of one another, R ¹⁰represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4.

22. liquid-crystal compositions as claimed in claim 21, at least a kind containing the compound represented by following general formula (X-1-2) or following general formula (X-1-3) as at least a kind of compound represented by described general formula (X-1),

[changing 25]

[changing 26]

In described formula, R ¹⁰represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4.

23. liquid-crystal compositions as claimed in claim 22, containing the compound represented by following formula (37.2) and/or the compound represented by following formula (38.2),

[changing 27]

[changing 28]

24. liquid-crystal compositions as claimed in claim 2, containing at least a kind of compound represented by following general formula (IV) as at least a kind of compound represented by described general formula (L),

[changing 29]

In described formula, R ⁴¹and R ⁴²represent the alkyl of carbonatoms 1 ~ 5 or the thiazolinyl of carbonatoms 2 ~ 5 independently of one another, X ⁴¹and X ⁴²represent hydrogen atom or fluorine atom independently of one another.

25. liquid-crystal compositions as claimed in claim 24, described X ⁴¹and X ⁴²in any one represent hydrogen atom, another one represents fluorine atom.

26. liquid-crystal compositions as claimed in claim 25, containing the compound represented by following formula (19.1) and/or the compound represented by following formula (19.2) as at least a kind of compound represented by described general formula (IV),

[changing 30]

[changing 31]

27. liquid-crystal compositions as claimed in claim 3, containing at least a kind of compound represented by following general formula (XIV-2) as at least a kind of compound represented by described general formula (M),

[changing 32]

In described formula, R ¹⁴⁰represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4, X ¹⁴¹~ X ¹⁴⁴represent fluorine atom or hydrogen atom independently of one another, Y ¹⁴represent fluorine atom, chlorine atom or-OCF ₃.

28. liquid-crystal compositions as claimed in claim 27, containing at least a kind of compound represented by following general formula (XIV-2-2) as at least a kind of compound represented by described general formula (XIV-2),

[changing 33]

In described formula, R ¹⁴⁰represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4.

29. liquid-crystal compositions as claimed in claim 28, contain more than 0.5 quality % relative to the total mass of liquid-crystal composition and the compound represented by following formula (54.1) being less than 4 quality % as at least a kind of compound represented by described general formula (XIV-2-2)

[changing 34]

30. liquid-crystal compositions as claimed in claim 27, containing at least a kind of compound represented by following general formula (XIV-2-4) as at least a kind of compound represented by described general formula (XIV-2),

[changing 35]

In described formula, R ¹⁴⁰represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4.

31. liquid-crystal compositions as claimed in claim 30, relative to the compound represented by the following formula (56.1) that the total mass of liquid-crystal composition contains at least 5 quality % as at least a kind of compound represented by described general formula (XIV-2-4)

[changing 36]

32. liquid-crystal compositions as claimed in claim 2, containing at least a kind of compound represented by following general formula (I-5) as at least a kind of compound represented by described general formula (L),

[changing 37]

In described formula, R ¹¹represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4, R ¹²represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 4 ~ 5 or carbonatoms 1 ~ 4.

33. liquid-crystal compositions as claimed in claim 32, containing the compound represented by following formula (6.6) as at least a kind of compound represented by described general formula (I-5),

[changing 38]

34. liquid-crystal compositions as claimed in claim 2, containing at least a kind of compound represented by following general formula (I-7) as at least a kind of compound represented by described general formula (L),

[changing 39]

In described formula, R ¹¹and R ¹²represent the alkoxyl group of the alkyl of carbonatoms 1 ~ 5, the thiazolinyl of carbonatoms 2 ~ 5 or carbonatoms 1 ~ 4 independently of one another, X ¹²represent fluorine atom or chlorine atom.

35. liquid-crystal compositions as claimed in claim 34, containing the compound represented by following formula (8.1) as at least a kind of compound represented by described general formula (I-7),

[changing 40]

36. liquid-crystal compositions as claimed in claim 1, it is further containing the compound represented by following formula (2.5),

[changing 41]

37. liquid-crystal compositions as claimed in claim 1, it is further containing the compound represented by following general formula (Q-a),

[changing 42]

In described formula, R ^q1represent straight chained alkyl or the branched-chain alkyl of carbonatoms 1 ~ 10.

38. liquid-crystal compositions as claimed in claim 37, containing the compound represented by following formula (Q-a-1) as the compound represented by described general formula (Q-a),

[changing 43]

39. liquid-crystal compositions as claimed in claim 1, it is further containing the compound represented by following general formula (Q-c),

[changing 44]

In described formula, R ^q3represent the straight chained alkyl of carbonatoms 1 ~ 8, branched-chain alkyl, unbranched alkoxy or branched alkoxy.

40. liquid-crystal compositions as claimed in claim 39, containing the compound represented by following formula (Q-c-1) as the compound represented by described general formula (Q-c),

[changing 45]

41. liquid-crystal compositions as claimed in claim 1, it is further containing at least a kind of compound represented by following general formula (XX),

[changing 46]

In described formula (XX), X ²⁰¹and X ²⁰²represent hydrogen atom or methyl independently of one another,

Sp ²⁰¹and Sp ²⁰²represent alkylidene group or the-O-(CH of singly-bound, carbonatoms 1 ~ 8 independently of one another ₂) _s-, in formula, s represents the integer of 2 ~ 7, Sauerstoffatom and aromatic nucleus bond,

Z ²⁰¹expression-OCH ₂-,-CH ₂o-,-COO-,-OCO-,-CF ₂o-,-OCF ₂-,-CH ₂cH ₂-,-CF ₂cF ₂-,-CH=CH-COO-,-CH=CH-OCO-,-COO-CH=CH-,-OCO-CH=CH-,-COO-CH ₂cH ₂-,-OCO-CH ₂cH ₂-,-CH ₂cH ₂-COO-,-CH ₂cH ₂-OCO-,-COO-CH ₂-,-OCO-CH ₂-,-CH ₂-COO-,-CH ₂-OCO-,-CY ¹=CY ²-,-C ≡ C-or singly-bound, formula-CY ¹=CY ²-in, Y ¹and Y ²represent fluorine atom or hydrogen atom independently of one another,

M ²⁰¹represent Isosorbide-5-Nitrae-phenylene, anti-form-1,4-cyclohexylidene or singly-bound,

Any hydrogen atom of the whole Isosorbide-5-Nitrae-phenylenes in formula can be replaced by fluorine atoms.

42. liquid-crystal compositions as claimed in claim 41, containing the compound represented by following formula (XX-2) as at least a kind of compound represented by described general formula (XX),

[changing 47]

43. liquid-crystal compositions as claimed in claim 2, containing the compound represented by following formula (12.3) as at least a kind of compound represented by described general formula (L),

[changing 48]

44. liquid-crystal compositions as claimed in claim 1, it is further containing the compound represented by following formula (62.1),

[changing 49]

45. liquid-crystal compositions as claimed in claim 1, it is further containing the compound represented by following formula (62.3),

[changing 50]

46. 1 kinds of liquid crystal display device, it uses the liquid-crystal composition described in claim 1.

47. liquid crystal display device as claimed in claim 46, display mode is IPS pattern, ocb mode, ecb mode, VA pattern, VA-IPS pattern or FFS mode.

48. 1 kinds of liquid-crystal displays, is characterized in that, use the liquid crystal display device described in claim 46 or 47.