CN106753426B - Liquid-crystal composition and its display device - Google Patents
Liquid-crystal composition and its display device Download PDFInfo
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Abstract
The present invention provides a kind of liquid-crystal composition, it includes one or more groups selected from compounds of formula I composition；The group of one or more compound compositions selected from general formula II and/or III.Liquid-crystal composition of the invention takes into account the characteristic of fast-response and high reliability, liquid-crystal composition of the present invention is suitable for liquid crystal display device while meeting big refractive index or suitable big dielectric.
Description
Technical Field
The present invention relates to a liquid crystal composition satisfying a large refractive index or a large dielectric constant while achieving both a fast response and a high reliability, and a liquid crystal display device including the liquid crystal composition.
Background
Liquid crystal display devices are used in many fields of information display, both for direct view displays and for projection type displays.
The display mode is classified into PC (phase change), TN (twisted nematic), STN (super twisted nematic), ECB (electrically controlled birefringence), OCB (optically compensated bend), IPS (in-plane switching), VA (vertical alignment), and the like, according to the type of the display mode.
The TN mode and STN mode devices use positive dielectric anisotropy liquid crystals, the VA mode devices use negative dielectric anisotropy liquid crystals, and the IPS/FFS mode devices use either positive or negative dielectric anisotropy liquid crystals. Among them, the IPS display mode has good viewing angle characteristics and improved response time, and is increasingly used for multimedia applications (e.g., mobile phones, tablet computers), and even for TVs and desktop monitors.
A liquid crystal display device containing a liquid crystal material having an appropriate optical anisotropy can increase the contrast. The requirements of different liquid crystal display modes on optical anisotropy are different, and a wider viewing angle can be obtained when the optical anisotropy is smaller.
The liquid crystal material having a large dielectric anisotropy is contained, and the threshold voltage of the liquid crystal is lowered, and the electric power consumption is further reduced.
The liquid crystal display device containing the liquid crystal material having a small viscosity can shorten the response time. When the response time of the liquid crystal display device is short, it is applicable to animation display.
A liquid crystal display device containing a liquid crystal material having a large resistivity can increase a voltage holding ratio and can increase a contrast ratio. Therefore, the liquid crystal material is required to have a large resistivity value in the initial stage and a large resistivity value even after further long-term use. Under the same voltage condition, the smaller the current value, the larger the resistivity.
However, the prior art generally has the problem that the prior art can not give consideration to both fast response and high reliability while meeting the requirement of large refraction.
Therefore, in order to obtain a stable liquid crystal display state and achieve the above requirements, it is an effort of those skilled in the art to provide a liquid crystal material that satisfies the performance requirements of fast response and high reliability on the premise of satisfying the existing large refraction or large dielectric by optimizing the liquid crystal material.
From the preparation angle of the liquid crystal material, various performances of the liquid crystal material are mutually influenced by the influence, and other performances may be changed by the improvement of a certain performance index. Therefore, creative efforts are often required to prepare liquid crystal materials having suitable properties in all aspects.
The invention aims to provide a liquid crystal composition which satisfies a large refractive index and has both a fast response and high reliability.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a liquid crystal composition which satisfies a large refractive index and has both a fast response and high reliability.
Another object of the present invention is to provide a liquid crystal display device comprising a liquid crystal composition satisfying a large refractive index while simultaneously satisfying a fast response and a high reliability.
The technical scheme is as follows: in order to achieve the above object, the present invention provides a liquid crystal composition comprising:
one or more compounds selected from the group of compounds of formula I
And
one or more compounds selected from the group consisting of compounds of the general formulae II and/or III
Wherein,
R1、R2、R3and R4The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms, or a straight-chain alkoxy group having 1 to 7 carbon atoms;
R5and R6The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms;
m represents 1 or 2;
n represents 0 or 1.
In an embodiment of the present invention, preferably said R is2And R4The same or different, each independently represents a linear alkoxy group having 1 to 7 carbon atoms.
In an embodiment of the present invention, preferably said compound of formula I is selected from the group consisting of:
and
preferably said compound of formula II is selected from the group consisting of:
and
preferably the compound of formula III is selected from the group consisting of:
and
in an embodiment of the present invention, the liquid crystal composition further comprises: one or more compounds selected from the group consisting of compounds of formula IV
Wherein,
R7and R8The same or different, each independently represents a straight-chain alkyl group having 1 to 10 carbon atoms.
In an embodiment of the present invention, preferably said compound of formula IV is selected from the group consisting of:
and
in an embodiment of the present invention, the liquid crystal composition further comprises: one or more compounds of the formulae V and/or VI
And
wherein,
R9、R10、R11and R12The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms, or a straight-chain alkoxy group having 1 to 7 carbon atoms;
Z1represents a single bond, -CH2O-or-COO-;
p represents 1 or 2.
In an embodiment of the present invention, preferably said compound of formula V is selected from the group consisting of:
and
preferably said compound of formula VI is selected from the group consisting of:
and
in an embodiment of the present invention, the liquid crystal composition further comprises: one or more compounds of the formulae VII and/or VIII
And
wherein,
R13and R14The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms, a straight-chain alkoxy group having 1 to 7 carbon atoms, or a straight-chain alkenyl group having 2 to 5 carbon atoms;
R15and R16The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms, or a straight-chain alkoxy group having 1 to 7 carbon atoms;
ring (C)OrAre the same or different and each independently representsOr
Ring (C)OrAre the same or different and each independently represents Or
q represents 1 or 2;
Z2represents a single bond, -CH2O-or-COO-;
o represents 0 or 1;
when q represents 2, two ringsAre the same or different and each independently representsOr
In an embodiment of the present invention, preferably said compound of formula VII is selected from the group consisting of:
and
preferably the compound of formula VIII is selected from the group consisting of:
and
preferably, in the liquid crystal composition of the present invention, the weight percentage of the group consisting of compounds of general formula I is 1-35%, and the weight percentage of the group consisting of compounds of general formula II and/or III is 10-45%; the weight percentage of the compound of the general formula IV is 0-15%; the weight percentage of the compound of the general formula V and/or VI is 25-70%; the weight percentage of the compound of the general formula VII and/or VIII is 0-30%.
Preferably, in the liquid crystal composition of the present invention, the weight percentage of the group consisting of compounds of general formula I is 5-25%, and the weight percentage of the group consisting of compounds of general formula II and/or III is 15-40%; the weight percentage of the compound of the general formula IV is 0-15%; the weight percentage of the compound of the general formula V and/or VI is 30-60%; the weight percentage of the compound of the general formula VII and/or VIII is 0-25%.
Preferably, in the liquid crystal composition of the present invention, the weight percentage of the group consisting of compounds of general formula I is 9-24%, and the weight percentage of the group consisting of compounds of general formula II and/or III is 18-33%; the weight percentage of the compound of the general formula IV is 0-10%; the weight percentage of the compound of the general formula V and/or VI is 39-59%; the weight percentage of the compound of the general formula VII and/or VIII is 0-23%.
Preferably, in the liquid crystal composition of the present invention, the weight percentage of the group consisting of compounds of general formula I is 9-24%, and the weight percentage of the group consisting of compounds of general formula II and/or III is 18-33%; the weight percentage of the compound of the general formula IV is 0-10%; the weight percentage of the compound of the general formula V and/or VI is 39-59%; the weight percentage of the compound of the general formula VII and/or VIII is 4-23%.
Another aspect of the present invention is to provide a liquid crystal display device having a liquid crystal composition satisfying both a large refractive index and a large dielectric constant and having a fast response and high reliability.
Has the advantages that: according to the invention, the liquid crystal composition is preferably obtained through a large number of experimental screens, the characteristics of high refractive index, quick response and high reliability are considered, the performance is excellent, and the liquid crystal composition is suitable for liquid crystal display devices.
In the present invention, unless otherwise specified, the proportions are weight ratios, all temperatures are in degrees centigrade, and the thickness of the box selected for the response time data test is 4 μm.
Detailed Description
The invention will be illustrated below with reference to specific embodiments. It should be noted that the following examples are illustrative of the present invention, and are not intended to limit the present invention. Other combinations and various modifications within the spirit or scope of the present invention may be made without departing from the spirit or scope of the present invention.
For convenience of expression, in the following examples, the group structure of the liquid crystal composition is represented by the code listed in Table 1:
TABLE 1 radical structural code of liquid crystal compounds
Compounds of the following formula are exemplified:
the structural formula is represented by the code listed in Table 1, and can be expressed as: mCPWN, where m in the code represents the number of carbon atoms in the left alkyl group, e.g., m is "2", i.e., the alkyl group is-C2H5(ii) a C in the code represents "cyclohexane group", P in the code represents "1, 4-phenylene group", W in the code represents "2, 3-difluoro-1, 4-phenylene group", n in the code represents the number of carbon atoms of the left-end alkyl group, for example, n is "2", that is, the alkyl group is-C2H5。
The abbreviated codes of the test items in the following examples are as follows:
wherein the optical anisotropy is measured by an Abbe refractometer under a sodium lamp (589nm) light source at 25 ℃; v10And (3) testing conditions are as follows: DMS 505/square wave/1 KHZ, VA test box, the box thickness is 4 μm;
Δ ∈ | -epsilon ⊥, where epsilon | is the dielectric constant parallel to the molecular axis and epsilon ⊥ is the dielectric constant perpendicular to the molecular axis, at 25 ℃, 1KHz, VA test cell thickness 6 μm;
is (initial) Is static current of liquid crystal poured into TN90 type test box with thickness of 7 μm and electrode area of 1cm under test conditions of 25 deg.C, 6V, 40Hz and square wave using SY-60A type electrical tester2。
Is (UV) is prepared by testing liquid crystal filled in TN90 type test box under test conditions of 25 deg.C, 6V, 40Hz, and square wave using SY-60A type electrical tester at 365nm and 450mJ/cm energy2The test cell thickness was 7 μm, and the electrode area was 1cm2。
The components used in the following examples can be synthesized by a known method or obtained commercially. These synthesis techniques are conventional, and the resulting liquid crystal compounds were tested to meet the standards for electronic compounds.
Liquid crystal compositions were prepared according to the compounding ratios of the liquid crystal compositions specified in the following examples. The liquid crystal composition is prepared according to the conventional method in the field, such as heating, ultrasonic wave, suspension and the like, and is mixed according to the specified proportion.
Liquid crystal compositions given in the following examples were prepared and studied. The composition of each liquid crystal composition and the results of the performance parameter test thereof are shown below.
Comparative example 1
The liquid crystal composition of comparative example 1, which was filled between two substrates of a liquid crystal display and subjected to a performance test, was prepared with each compound and weight percentage as listed in table 2, and the test data are shown in the following table:
TABLE 2 liquid crystal composition formulations and their test properties
Example 1
The liquid crystal composition of example 1 was prepared according to the compounds and weight percentages listed in table 3, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 3 liquid crystal composition formula and its test performance
Compared with the comparative example 1, the liquid crystal composition has large optical anisotropy, low viscosity and lower Is (initial) and Is (UV), under the same voltage condition, the smaller the current value Is, the higher the resistivity Is, the better the reliability of the liquid crystal material Is, namely, the liquid crystal composition satisfies the characteristics of large optical anisotropy, quick response and high reliability, and Is suitable for liquid crystal display devices.
Example 2
The liquid crystal composition of example 2 was prepared according to the compounds and weight percentages listed in table 4, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 4 liquid crystal composition formula and its test performance
Compared with comparative example 1, the liquid crystal composition has large optical anisotropy, proper dielectric anisotropy, low viscosity, low Is (initial) and Is (UV), under the same voltage condition, the smaller the current value Is, the higher the resistivity Is, the better the reliability of the liquid crystal material Is, namely, the liquid crystal composition satisfies the large optical anisotropy and proper dielectric anisotropy, simultaneously gives consideration to the characteristics of quick response and high reliability, and Is suitable for liquid crystal display devices.
Example 3
The liquid crystal composition of example 3 was prepared according to the compounds and weight percentages listed in table 5, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 5 liquid crystal composition formulations and their test properties
Compared with comparative example 1, the liquid crystal composition has large optical anisotropy, proper dielectric anisotropy, low viscosity, lower Is (initial) and Is (UV), under the same voltage condition, the smaller the current value Is, the higher the resistivity Is, the better the reliability of the liquid crystal material Is, namely, the liquid crystal composition satisfies the large optical anisotropy and proper dielectric anisotropy, simultaneously gives consideration to the characteristics of quick response and high reliability, and Is suitable for liquid crystal display devices.
Example 4
The liquid crystal composition of example 4 was prepared according to the compounds and weight percentages listed in table 6, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 6 liquid crystal composition formula and its test performance
Compared with comparative example 1, the liquid crystal composition has large optical anisotropy, proper dielectric anisotropy, low viscosity, low Is (initial) and Is (UV), under the same voltage condition, the lower the current value Is, the higher the resistivity Is, the better the reliability of the liquid crystal material Is, namely, the liquid crystal composition satisfies the large optical anisotropy and proper dielectric anisotropy, and simultaneously has the characteristics of quick response and high reliability, and Is suitable for liquid crystal display devices.
Example 5
The liquid crystal composition of example 5 was prepared according to the compounds and weight percentages listed in table 7, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 7 liquid crystal composition formulations and their test properties
Compared with the comparative example 1, the liquid crystal composition has large optical anisotropy, large dielectric anisotropy, low viscosity, lower Is (initial) and Is (UV), under the same voltage condition, the lower the current value Is, the higher the resistivity Is, the better the reliability of the liquid crystal material Is, namely, the liquid crystal composition satisfies the characteristics of large optical anisotropy, large dielectric anisotropy, quick response and high reliability, and Is suitable for liquid crystal display devices.
Example 6
The liquid crystal composition of example 6 was prepared according to the compounds and weight percentages listed in table 8, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 8 liquid crystal composition formulations and their test properties
Compared with the comparative example 1, the liquid crystal composition has large optical anisotropy, large dielectric anisotropy, low viscosity, lower Is (initial) and Is (UV), under the same voltage condition, the lower the current value Is, the higher the resistivity Is, the better the reliability of the liquid crystal material Is, namely, the liquid crystal composition satisfies the characteristics of large optical anisotropy, large dielectric anisotropy, quick response and high reliability, and Is suitable for liquid crystal display devices.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A liquid crystal composition comprising:
one or more compounds selected from the group of compounds of formula I
And
one or more compounds selected from the group consisting of compounds of the general formulae II and/or III
Wherein,
R1、R2、R3and R4The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms, or a straight-chain alkoxy group having 1 to 7 carbon atoms;
R5and R6The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms;
m represents 1 or 2;
n represents 0 or 1;
the weight percentage of the group consisting of the compounds of the general formula I is 1-35%.
2. The liquid crystal composition of claim 1, wherein R is2And R4The same or different, each independently represents a linear alkoxy group having 1 to 7 carbon atoms.
3. The liquid crystal composition of claim 1, wherein the compound of formula I is selected from the group consisting of:
the compound of formula II is selected from the group consisting of:
the compound of formula III is selected from the group consisting of:
4. the liquid crystal composition according to any one of claims 1 to 3, further comprising: one or more compounds selected from the group consisting of compounds of formula IV
Wherein,
R7and R8The same or different, each independently represents a straight-chain alkyl group having 1 to 10 carbon atoms.
5. The liquid crystal composition of claim 4, wherein the compound of formula IV is selected from the group consisting of:
6. the liquid crystal composition of claim 4, further comprising: one or more compounds of the formulae V and/or VI
Wherein,
R9、R10、R11and R12The same or different, each independently represents a linear alkyl group having 1 to 7 carbon atoms, or a linear alkoxy group having 1 to 7 carbon atomsA group;
Z1represents a single bond, -CH2O-or-COO-;
p represents 1 or 2.
7. Liquid crystal composition according to claim 6, characterized in that the compound of formula V is selected from the group consisting of:
the compound of formula VI is selected from the group consisting of:
8. the liquid crystal composition of claim 6, further comprising: one or more compounds of the formulae VII and/or VIII
Wherein,
R13and R14The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms, a straight-chain alkoxy group having 1 to 7 carbon atoms, or a straight-chain alkenyl group having 2 to 5 carbon atoms;
R15and R16The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms, or a straight-chain alkoxy group having 1 to 7 carbon atoms;
ring (C)Are the same or different and each independently represents
Ring (C)Are the same or different and each independently represents
q represents 1 or 2;
Z2represents a single bond, -CH2O-or-COO-;
o represents 0 or 1;
when q represents 2, two ringsAre the same or different and each independently represents
9. Liquid crystal composition according to claim 8, characterized in that the compound of formula VII is selected from the group consisting of:
the compound of formula VIII is selected from the group consisting of:
10. the liquid crystal composition of claim 8, wherein the liquid crystal composition comprises:
compound I-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 3 percent of the total weight of the liquid crystal composition;
7% by weight of compound II-2 based on the total weight of the liquid crystal composition;
7% of compound II-7 by weight of the total liquid crystal composition;
compound II-11 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-16 in an amount of 6% by weight based on the total weight of the liquid crystal composition;
a compound V-22 accounting for 7 percent of the total weight of the liquid crystal composition;
compound V-23 in an amount of 8% by weight based on the total weight of the liquid crystal composition;
compound V-24 in an amount of 9% by weight based on the total weight of the liquid crystal composition;
compound V-25 in an amount of 8% by weight based on the total weight of the liquid crystal composition;
6 percent of compound V-30 based on the total weight of the liquid crystal composition;
compound V-31 accounting for 8 percent of the total weight of the liquid crystal composition;
compound V-32 in an amount of 8% by weight based on the total weight of the liquid crystal composition; and
a compound V-33 in an amount of 5% by weight based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1 accounting for 3 percent of the total weight of the liquid crystal composition;
compound I-2 accounting for 2 percent of the total weight of the liquid crystal composition;
7% of compound II-1 by weight of the total liquid crystal composition;
7% by weight of compound II-2 based on the total weight of the liquid crystal composition;
compound II-10 accounting for 6 percent of the total weight of the liquid crystal composition;
compound II-11 accounting for 6 percent of the total weight of the liquid crystal composition;
12% by weight of compound V-1 based on the total weight of the liquid crystal composition;
a compound V-3 in an amount of 9% by weight based on the total weight of the liquid crystal composition;
compound V-4 accounting for 10 percent of the total weight of the liquid crystal composition;
6 percent of compound V-13 in the total weight of the liquid crystal composition;
compound V-15 accounting for 5 percent of the total weight of the liquid crystal composition;
compound V-14 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
compound VI-1 in an amount of 10% by weight based on the total weight of the liquid crystal composition;
7% by weight of compound VII-3 based on the total weight of the liquid crystal composition; and
a compound VIII-3 accounting for 3 percent of the total weight of the liquid crystal composition,
2 percent of compound VIII-21 accounting for the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1 accounting for 6 percent of the total weight of the liquid crystal composition;
compound I-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-3 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-7 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-11 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-16 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
compound III-1 in an amount of 8% by weight based on the total weight of the liquid crystal composition;
6 percent of compound V-22 in the total weight of the liquid crystal composition;
compound V-23 in an amount of 6% by weight based on the total weight of the liquid crystal composition;
compound V-24 in an amount of 6% by weight based on the total weight of the liquid crystal composition;
compound V-25 in an amount of 6% by weight based on the total weight of the liquid crystal composition;
6 percent of compound V-30 based on the total weight of the liquid crystal composition;
6 percent of compound V-31 in the total weight of the liquid crystal composition;
6% by weight of compound V-32 based on the total weight of the liquid crystal composition;
compound V-33 in an amount of 5% by weight based on the total weight of the liquid crystal composition; and
4% by weight of compound VII-4 based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1 accounting for 3 percent of the total weight of the liquid crystal composition;
compound I-2 accounting for 3 percent of the total weight of the liquid crystal composition;
compound I-3 accounting for 3 percent of the total weight of the liquid crystal composition;
compound III-1 in an amount of 9% by weight based on the total weight of the liquid crystal composition;
compound III-2 in an amount of 9% by weight based on the total weight of the liquid crystal composition;
6 percent of compound V-22 in the total weight of the liquid crystal composition;
compound V-23 in an amount of 8% by weight based on the total weight of the liquid crystal composition;
compound V-24 in an amount of 8% by weight based on the total weight of the liquid crystal composition;
compound V-25 in an amount of 8% by weight based on the total weight of the liquid crystal composition;
compound VI-1 in an amount of 10% by weight based on the total weight of the liquid crystal composition;
compound VI-2 in an amount of 10% by weight based on the total weight of the liquid crystal composition;
7% by weight of compound VII-7 based on the total weight of the liquid crystal composition;
6% by weight of compound VII-15 based on the total weight of the liquid crystal composition;
8% by weight of compound VII-22 based on the total weight of the liquid crystal composition; and
2% by weight of the total liquid crystal composition of a compound VIII-35,
alternatively, the liquid crystal composition comprises:
compound I-1 accounting for 8 percent of the total weight of the liquid crystal composition;
compound I-2 accounting for 8 percent of the total weight of the liquid crystal composition;
compound I-3 accounting for 8 percent of the total weight of the liquid crystal composition;
compound II-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-7 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-11 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-16 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
compound II-10 accounting for 4 percent of the total weight of the liquid crystal composition;
compound IV-2 in an amount of 10% by weight based on the total weight of the liquid crystal composition;
6 percent of compound V-13 in the total weight of the liquid crystal composition;
compound V-22 in an amount of 4% by weight based on the total weight of the liquid crystal composition;
compound V-23 in an amount of 6% by weight based on the total weight of the liquid crystal composition;
compound V-24 in an amount of 3% by weight based on the total weight of the liquid crystal composition;
compound V-25 in an amount of 3% by weight based on the total weight of the liquid crystal composition;
compound V-30 accounting for 4 percent of the total weight of the liquid crystal composition;
6 percent of compound V-31 in the total weight of the liquid crystal composition;
compound V-32 in an amount of 4% by weight based on the total weight of the liquid crystal composition;
compound V-33 in an amount of 3% by weight based on the total weight of the liquid crystal composition; and
5% by weight of compound VII-4 based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
7% of compound I-1 by weight of the total liquid crystal composition;
compound I-17 in an amount of 7% by weight based on the total weight of the liquid crystal composition;
compound II-1 accounting for 5 percent of the total weight of the liquid crystal composition;
7% by weight of compound II-2 based on the total weight of the liquid crystal composition;
7% of compound II-7 by weight of the total liquid crystal composition;
compound II-11 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-16 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
a compound V-22 accounting for 7 percent of the total weight of the liquid crystal composition;
compound V-23 in an amount of 9% by weight based on the total weight of the liquid crystal composition;
compound V-24 in an amount of 9% by weight based on the total weight of the liquid crystal composition;
compound V-25 in an amount of 8% by weight based on the total weight of the liquid crystal composition;
compound V-30 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound V-31 accounting for 7 percent of the total weight of the liquid crystal composition;
compound V-32 in an amount of 8% by weight based on the total weight of the liquid crystal composition; and
and the compound V-33 accounts for 5 percent of the total weight of the liquid crystal composition.
11. A liquid crystal display device comprising the liquid crystal composition of any one of claims 1 to 10.
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| JP5515619B2 (en) * | 2009-10-26 | 2014-06-11 | Ｊｎｃ株式会社 | Liquid crystal composition and liquid crystal display element |
| JP2015199900A (en) * | 2014-04-02 | 2015-11-12 | Jnc株式会社 | Liquid crystal composition and liquid crystal display element |
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