CN106753427B - Liquid-crystal composition and its display device - Google Patents
Liquid-crystal composition and its display device Download PDFInfo
- Publication number
- CN106753427B CN106753427B CN201510814476.3A CN201510814476A CN106753427B CN 106753427 B CN106753427 B CN 106753427B CN 201510814476 A CN201510814476 A CN 201510814476A CN 106753427 B CN106753427 B CN 106753427B
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal composition
- compound
- total weight
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 0 *C(CC1)CCC1C1CCC(*)CC1 Chemical compound *C(CC1)CCC1C1CCC(*)CC1 0.000 description 10
Landscapes
- Liquid Crystal Substances (AREA)
Abstract
The present invention provides a kind of liquid-crystal composition, it includes one or more groups selected from compounds of formula I composition；One or more groups selected from compounds of formula II composition；One or more groups selected from compounds of formula III composition.Liquid-crystal composition of the invention has many advantages, such as suitable big dielectric anisotropic, fast-response, good to ultraviolet light (UV) and high-temperature stability, and liquid-crystal composition of the present invention is applicable in VA or IPS/FFS liquid crystal display device.
Description
Technical Field
The present invention relates to a liquid crystal composition having suitably large dielectric anisotropy, fast response, stability to Ultraviolet (UV) light and high temperature, and a liquid crystal display device comprising the same.
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 and STN mode elements use positive dielectric anisotropy liquid crystals, the VA mode elements use negative dielectric anisotropy liquid crystals, and the IPS mode uses 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.
With the development of technology, the requirements of people on display devices are continuously improved, such as a perfect reality effect, low power consumption, fast response, long service life and the like, and the performance parameters of the liquid crystal material are also required to be continuously improved from the side.
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 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.
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.
In addition, stability to Ultraviolet (UV) rays and thermal stability of the liquid crystal composition are associated with the lifetime of the liquid crystal display device. Improving the stability to Ultraviolet (UV) light and thermal stability of the liquid crystal composition can extend the lifetime of the liquid crystal display device.
The prior art can not give consideration to the balance of properties of proper large dielectric anisotropy, quick response, UV resistance and high-temperature stability, and can not meet all indexes at the same time. Therefore, in order to obtain a stable liquid crystal display state, it is an effort of those skilled in the art to achieve the above requirements and to provide suitably large dielectric anisotropy, fast response, stability against Ultraviolet (UV) and high temperature 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 is suitable for large dielectric anisotropy, quick response, Ultraviolet (UV) and high-temperature stability.
Disclosure of Invention
The purpose of the invention is as follows: the object of the present invention is to provide a liquid crystal composition having suitably large dielectric anisotropy, fast response, stability against Ultraviolet (UV) rays and high temperature.
It is another object of the present invention to provide a liquid crystal display device comprising a liquid crystal composition having suitably large dielectric anisotropy, fast response, stability to Ultraviolet (UV) rays and high temperature.
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
One or more compounds selected from the group consisting of compounds of formula II
And
one or more compounds selected from the group consisting of compounds of formula III
Wherein,
R1and R2The 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;
R3and R4The same or different, each independently represents a straight-chain alkyl group having 1 to 10 carbon atoms;
R5and R6The 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; a linear alkenyl group having 2 to 7 carbon atoms;
m and n are the same or different and each independently represents 1 or 2;
ring (C)Are the same or different and each independently represents
When n represents 2, two ringsAre the same or different and each independently represents
In an embodiment of the present invention, preferably said compound of formula I is selected from the group consisting of:
and
wherein,
R1represents a straight-chain alkyl group having 1 to 7 carbon atoms or a straight-chain alkoxy group having 1 to 7 carbon atoms;
R2represents a linear alkoxy group having 1 to 7 carbon atoms,
preferably said compound of formula II is selected from the group consisting of:
wherein,
R3and R4The same or different, each independently represents a linear alkyl group having 2 to 8 carbon atoms,
preferably the compound of formula III is selected from the group consisting of:
and
wherein,
R5and R6The 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; a linear alkenyl group having 2 to 7 carbon atoms.
In an embodiment of the present invention, more preferably said compound of formula I is selected from the group consisting of:
and
more preferably said compound of formula II is selected from the group consisting of:
and
more preferably said 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 of the general formulae IV and/or V
Wherein,
R7、R8、R9and R10The 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;
p represents 1 or 2;
Z1represents a single bond, -CH2O-、-COO-。
In an embodiment of the present invention, preferably said compound of formula IV is selected from the group consisting of:
and
wherein,
R7represents a straight-chain alkyl group having 1 to 7 carbon atoms or a straight-chain alkoxy group having 1 to 7 carbon atoms;
R8represents a linear alkoxy group having 1 to 7 carbon atoms,
the compound of formula V is selected from the group consisting of:
wherein,
R9represents a straight-chain alkyl group having 1 to 7 carbon atoms or a straight-chain alkoxy group having 1 to 7 carbon atoms;
R10represents a linear alkoxy group having 1 to 7 carbon atoms.
In an embodiment of the present invention, more preferably said compound of formula IV is selected from the group consisting of:
and
the compound of formula V 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 VI
Wherein,
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; ring (C)Are the same or different and each independently represents
Z2Represents a single bond, -CH2O-or-COO-.
In an embodiment of the present invention, preferably said compound of formula VI is selected from the group consisting of:
and
wherein,
R11and R12The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms.
In an embodiment of the present invention, more preferably said compound of formula VI is selected from the group consisting of:
and
preferably, in the liquid crystal composition, the weight percentage of the compound in the general formula I is 1-25%; the weight percentage content of the compound of the general formula II is 1-20%; the weight percentage content of the compound of the general formula III is 30-75%; the weight percentage content of the compound of the general formula IV and/or V is 10-50%; the weight percentage of the compound of the general formula VI is 0-10%.
Preferably, in the liquid crystal composition, the weight percentage of the compound in the general formula I is 1-20%; the weight percentage of the compound of the general formula II is 1-15%; the weight percentage content of the compound of the general formula III is 30-70%; the weight percentage content of the compound of the general formula IV and/or V is 10-45%; the weight percentage of the compound of the general formula VI is 0-10%.
Preferably, in the liquid crystal composition, the weight percentage of the compound in the general formula I is 5-15%; the weight percentage content of the compound of the general formula II is 1-10%; the weight percentage content of the compound of the general formula III is 40-70%; the weight percentage content of the compound of the general formula IV and/or V is 15-43%; the weight percentage of the compound of the general formula VI is 0-5%.
Preferably, in the liquid crystal composition, the weight percentage of the compound in the general formula I is 5-15%; the weight percentage content of the compound of the general formula II is 1-10%; the weight percentage content of the compound of the general formula III is 40-70%; the weight percentage content of the compound of the general formula IV is 9-19%; the weight percentage of the compound of the general formula V is 6-24%; the weight percentage of the compound of the general formula VI is 1-5%.
Preferably, the liquid crystal composition of the present invention comprises:
compound I-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 4 percent of the total weight of the liquid crystal composition;
7% by weight of compound III-3-3 based on the total weight of the liquid crystal composition;
compound III-1-4 accounting for 35 percent of the total weight of the liquid crystal composition;
7% by weight of compound III-5-1 based on the total weight of the liquid crystal composition;
compound IV-3-3 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-3-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-4-2 accounting for 4 percent of the total weight of the liquid crystal composition;
7% by weight of compound V-1 based on the total weight of the liquid crystal composition;
a compound V-2 in an amount of 7% by weight based on the total weight of the liquid crystal composition; and
a compound V-8 in an amount of 7% by weight based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 6 percent of the total weight of the liquid crystal composition;
compound III-3-3 accounting for 6 percent of the total weight of the liquid crystal composition;
31% by weight of compound III-1-4 based on the total weight of the liquid crystal composition;
compound III-5-1 accounting for 3 percent of the total weight of the liquid crystal composition;
compound IV-3-3 accounting for 6 percent of the total weight of the liquid crystal composition;
compound IV-4-1 accounting for 6 percent of the total weight of the liquid crystal composition;
compound IV-4-2 accounting for 6 percent of the total weight of the liquid crystal composition;
7% by weight of compound V-1 based on the total weight of the liquid crystal composition;
compound V-2 accounting for 8 percent of the total weight of the liquid crystal composition; and
a compound V-8 in an amount of 8% by weight based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 6 percent of the total weight of the liquid crystal composition;
compound III-3-3 accounting for 5 percent of the total weight of the liquid crystal composition;
compound III-1-4 accounting for 33 percent of the total weight of the liquid crystal composition;
5% of compound III-4-3 by weight of the total liquid crystal composition;
compound IV-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound IV-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound IV-1-7 accounting for 4 percent of the total weight of the liquid crystal composition;
6 percent of compound V-1 in the total weight of the liquid crystal composition;
a compound V-2 in an amount of 7% by weight based on the total weight of the liquid crystal composition;
6 percent of compound V-8 in the total weight of the liquid crystal composition;
compound V-5 accounting for 5 percent of the total weight of the liquid crystal composition; and
compound VI-3-1 in an amount of 3% by weight based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
7% of compound II-1 by weight of the total liquid crystal composition;
compound III-3-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound III-1-4 accounting for 30 percent of the total weight of the liquid crystal composition;
compound IV-1-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-1-3 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-1-7 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-2-1 accounting for 4 percent of the total weight of the liquid crystal composition;
6 percent of compound V-1 in the total weight of the liquid crystal composition;
6 percent of compound V-2 in the total weight of the liquid crystal composition;
6 percent of compound V-8 in the total weight of the liquid crystal composition;
6 percent of compound V-5 based on the total weight of the liquid crystal composition; and
compound VI-3-1 in an amount of 2% by weight based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 3 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-2 accounting for 3 percent of the total weight of the liquid crystal composition;
compound III-1-1 accounting for 21 percent of the total weight of the liquid crystal composition;
compound III-1-2 accounting for 12 percent of the total weight of the liquid crystal composition;
7% by weight of compound III-3-3 based on the total weight of the liquid crystal composition;
compound III-2-1 accounting for 8 percent of the total weight of the liquid crystal composition;
compound III-4-3 accounting for 8 percent of the total weight of the liquid crystal composition;
5% of compound III-4-4 by weight of the total liquid crystal composition;
compound III-5-1 accounting for 9 percent of the total weight of the liquid crystal composition;
compound IV-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound IV-2-1 accounting for 6 percent of the total weight of the liquid crystal composition; and
6 percent of compound V-2 accounting for the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-2-1 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;
compound III-1-1 accounting for 20 percent of the total weight of the liquid crystal composition;
compound III-1-2 in an amount of 15% by weight based on the total weight of the liquid crystal composition;
compound III-3-3 accounting for 10 percent of the total weight of the liquid crystal composition;
compound III-2-1 accounting for 10 percent of the total weight of the liquid crystal composition;
7% by weight of compound III-4-3 based on the total weight of the liquid crystal composition;
compound III-5-1 accounting for 8 percent of the total weight of the liquid crystal composition;
compound IV-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound IV-2-1 accounting for 5 percent of the total weight of the liquid crystal composition; and
and the compound V-2 accounts for 6 percent of the total weight of the liquid crystal composition.
Another aspect of the present invention is to provide a liquid crystal display device comprising a liquid crystal composition having suitably large dielectric anisotropy, fast response, stability to Ultraviolet (UV) rays and high temperature.
Through a large number of experimental screens, the liquid crystal composition disclosed by the invention is preferably obtained to have the characteristics of proper large dielectric anisotropy, quick response, Ultraviolet (UV) and high-temperature stability and the like, and the liquid crystal composition disclosed by the invention is suitable for VA or IPS/FFS 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:
cp: clearing Point (nematic-isotropic phase transition temperature, degree C.)
Δ n: optical anisotropy (589nm, 25 ℃ C.)
Δ ε: dielectric anisotropy (1KHz, 25 ℃ C.)
η viscosity (mPas, 25 ℃ C.)
VthThreshold voltage is a characteristic voltage at 10% relative transmittance
VsatSaturation voltage is the characteristic voltage at 90% relative transmittance
ToffTime required to decrease from 90% transmittance to 10% transmittance when power was removed (ms, 25 ℃ C.)
VHR (initial): initial Voltage holding ratio (%)
Vhr (uv): voltage holding ratio after UV light irradiation (%)
VHR (high temperature): voltage holding ratio after 1 hour at 150 ℃ C (%)
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, 4 μm VA cell;
Δ ∈ | -epsilon ⊥, where epsilon | is the dielectric constant parallel to the molecular axis, epsilon ⊥ is the dielectric constant perpendicular to the molecular axis, test conditions of 1KHz, 6 μm VA cell at 25 ℃;
VHR (initial) was tested using the TOY06254 type liquid crystal physical property evaluation system; the test temperature is 60 ℃, the test voltage is 5V, and the test frequency is 6 Hz;
VHR (UV) was measured using a TOY06254 type liquid crystal physical property evaluation system; the used wavelength is 365nm, and the energy is 6000mJ/cm2The liquid crystal is irradiated by light and then tested, the testing temperature is 60 ℃, the testing voltage is 5V, and the testing frequency is 6 Hz;
VHR (high temperature) was tested using a TOY06254 type liquid crystal physical property evaluation system; the liquid crystal is tested after being kept at the high temperature of 150 ℃ for 1h, the testing temperature is 60 ℃, the testing voltage is 5V, and the testing frequency is 6 Hz;
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
Comparative example 2
The liquid crystal composition of comparative example 2, 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 3, and the test data are shown in the following table:
TABLE 3 liquid crystal composition formula and its test performance
Example 1
The liquid crystal composition of example 1 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
Example 2
The liquid crystal composition of example 2 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
Example 3
The liquid crystal composition of example 3 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
Example 4
The liquid crystal composition of example 4 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 examples 1 and 2, the liquid crystal composition has smaller rotational viscosity and response time and better stability, can simultaneously meet the requirements of fast response and high reliability under the appropriate dielectric anisotropy, and is suitable for VA or IPS/FFS liquid crystal display devices in the examples 1 and 3.
Compared with comparative examples 1 and 2, the liquid crystal composition has large dielectric anisotropy while meeting the requirements of fast response and high reliability, and is suitable for VA or IPS/FFS liquid crystal display devices in example 2 and example 4.
Comparative example 3
The liquid crystal composition of comparative example 3, 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 8, and the test data are shown in the following table:
TABLE 8 liquid crystal composition formulations and their test properties
Example 5
The liquid crystal composition of example 5 was prepared according to the compounds and weight percentages listed in table 9, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 9 liquid crystal composition formulations and their test properties
Example 6
The liquid crystal composition of example 6 was prepared according to the compounds and weight percentages listed in table 10, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 10 liquid crystal composition formulations and their test properties
Compared with the comparative example 3, the liquid crystal composition has smaller rotational viscosity and response time, better stability, can simultaneously meet the requirements of fast response and high reliability under the appropriate dielectric anisotropy, and is suitable for VA or IPS/FFS liquid crystal display devices in the examples 5 and 6.
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 (10)
1. A liquid crystal composition comprising:
one or more compounds selected from the group of compounds of formula I
One or more compounds selected from the group consisting of compounds of formula II
And
one or more compounds selected from the group consisting of compounds of formula III
Wherein,
R1and R2The 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;
R3and R4The same or different, each independently represents a straight-chain alkyl group having 1 to 10 carbon atoms;
R5and R6The 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; a linear alkenyl group having 2 to 7 carbon atoms;
m and n are the same or different and each independently represents 1 or 2;
ring (C)Are the same or different and each independently represents
When n represents 2, two ringsAre the same or different and each independently represents
The liquid crystal composition further comprises: one or more compounds selected from the group consisting of compounds of the general formulae IV and/or V
And
wherein,
R7、R8、R9and R10The 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;
p represents 1 or 2;
Z1represents a single bond, -CH2O-、-COO-；
In the liquid crystal composition, the weight percentage of the compound of the general formula I is 1-25%; the weight percentage of the compound of the general formula II is 1-20%.
2. The liquid crystal composition of claim 1, wherein the compound of formula I is selected from the group consisting of:
and
wherein,
R1represents a straight-chain alkyl group having 1 to 7 carbon atoms or a straight-chain alkoxy group having 1 to 7 carbon atoms;
R2represents a linear alkoxy group having 1 to 7 carbon atoms,
the compound of formula II is selected from the group consisting of:
wherein,
R3and R4The same or different, each independently represents a straight-chain alkyl group having 2 to 8 carbon atoms;
the compound of formula III is selected from the group consisting of:
and
wherein,
R5and R6The 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; a linear alkenyl group having 2 to 7 carbon atoms.
3. The liquid crystal composition of claim 2, wherein the compound of formula I is selected from the group consisting of:
and
the compound of formula II is selected from the group consisting of:
and
the compound of formula III is selected from the group consisting of:
and
4. the liquid crystal composition of claim 1, wherein the compound of formula IV is selected from the group consisting of:
and
wherein,
R7represents a straight-chain alkyl group having 1 to 7 carbon atoms or a straight-chain alkoxy group having 1 to 7 carbon atoms;
R8represents a linear alkoxy group having 1 to 7 carbon atoms;
the compound of formula V is selected from the group consisting of:
wherein,
R9represents a straight-chain alkyl group having 1 to 7 carbon atoms or a straight-chain alkoxy group having 1 to 7 carbon atoms;
R10represents a linear alkoxy group having 1 to 7 carbon atoms.
5. The liquid crystal composition of claim 4, wherein the compound of formula IV is selected from the group consisting of:
and
the compound of formula V is selected from the group consisting of:
and
6. the liquid crystal composition according to any one of claims 1 to 5, further comprising: one or more compounds selected from the group consisting of compounds of formula VI
Wherein,
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;
ring (C)Are the same or different and each independently represents
Z2Represents a single bond, -CH2O-or-COO-.
7. The liquid crystal composition of claim 6, wherein the compound of formula VI is selected from the group consisting of:
and
wherein,
R11and R12The same or different, each independently represents a straight-chain alkyl group having 1 to 7 carbon atoms.
8. The liquid crystal composition of claim 7, wherein the compound of formula VI is selected from the group consisting of:
and
9. the liquid crystal composition according to any one of claims 1 to 8, wherein the liquid crystal composition comprises:
compound I-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 4 percent of the total weight of the liquid crystal composition;
7% by weight of compound III-3-3 based on the total weight of the liquid crystal composition;
compound III-1-4 accounting for 35 percent of the total weight of the liquid crystal composition;
7% by weight of compound III-5-1 based on the total weight of the liquid crystal composition;
compound IV-3-3 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-3-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-4-2 accounting for 4 percent of the total weight of the liquid crystal composition;
7% by weight of compound V-1 based on the total weight of the liquid crystal composition;
a compound V-2 in an amount of 7% by weight based on the total weight of the liquid crystal composition; and
a compound V-8 in an amount of 7% by weight based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 6 percent of the total weight of the liquid crystal composition;
compound III-3-3 accounting for 6 percent of the total weight of the liquid crystal composition;
31% by weight of compound III-1-4 based on the total weight of the liquid crystal composition;
compound III-5-1 accounting for 3 percent of the total weight of the liquid crystal composition;
compound IV-3-3 accounting for 6 percent of the total weight of the liquid crystal composition;
compound IV-4-1 accounting for 6 percent of the total weight of the liquid crystal composition;
compound IV-4-2 accounting for 6 percent of the total weight of the liquid crystal composition;
7% by weight of compound V-1 based on the total weight of the liquid crystal composition;
compound V-2 accounting for 8 percent of the total weight of the liquid crystal composition; and
a compound V-8 in an amount of 8% by weight based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 6 percent of the total weight of the liquid crystal composition;
compound III-3-3 accounting for 5 percent of the total weight of the liquid crystal composition;
compound III-1-4 accounting for 33 percent of the total weight of the liquid crystal composition;
5% of compound III-4-3 by weight of the total liquid crystal composition;
compound IV-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound IV-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound IV-1-7 accounting for 4 percent of the total weight of the liquid crystal composition;
6 percent of compound V-1 in the total weight of the liquid crystal composition;
a compound V-2 in an amount of 7% by weight based on the total weight of the liquid crystal composition;
6 percent of compound V-8 in the total weight of the liquid crystal composition;
compound V-5 accounting for 5 percent of the total weight of the liquid crystal composition; and
compound VI-3-1 in an amount of 3% by weight based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-1-3 accounting for 4 percent of the total weight of the liquid crystal composition;
7% of compound II-1 by weight of the total liquid crystal composition;
compound III-3-3 accounting for 4 percent of the total weight of the liquid crystal composition;
compound III-1-4 accounting for 30 percent of the total weight of the liquid crystal composition;
compound IV-1-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-1-3 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-1-7 accounting for 5 percent of the total weight of the liquid crystal composition;
compound IV-2-1 accounting for 4 percent of the total weight of the liquid crystal composition;
6 percent of compound V-1 in the total weight of the liquid crystal composition;
6 percent of compound V-2 in the total weight of the liquid crystal composition;
6 percent of compound V-8 in the total weight of the liquid crystal composition;
6 percent of compound V-5 based on the total weight of the liquid crystal composition; and
compound VI-3-1 in an amount of 2% by weight based on the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 3 percent of the total weight of the liquid crystal composition;
compound II-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound II-2 accounting for 3 percent of the total weight of the liquid crystal composition;
compound III-1-1 accounting for 21 percent of the total weight of the liquid crystal composition;
compound III-1-2 accounting for 12 percent of the total weight of the liquid crystal composition;
7% by weight of compound III-3-3 based on the total weight of the liquid crystal composition;
compound III-2-1 accounting for 8 percent of the total weight of the liquid crystal composition;
compound III-4-3 accounting for 8 percent of the total weight of the liquid crystal composition;
5% of compound III-4-4 by weight of the total liquid crystal composition;
compound III-5-1 accounting for 9 percent of the total weight of the liquid crystal composition;
compound IV-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound IV-2-1 accounting for 6 percent of the total weight of the liquid crystal composition; and
6 percent of compound V-2 accounting for the total weight of the liquid crystal composition,
alternatively, the liquid crystal composition comprises:
compound I-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-1-2 accounting for 4 percent of the total weight of the liquid crystal composition;
compound I-2-1 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;
compound III-1-1 accounting for 20 percent of the total weight of the liquid crystal composition;
compound III-1-2 in an amount of 15% by weight based on the total weight of the liquid crystal composition;
compound III-3-3 accounting for 10 percent of the total weight of the liquid crystal composition;
compound III-2-1 accounting for 10 percent of the total weight of the liquid crystal composition;
7% by weight of compound III-4-3 based on the total weight of the liquid crystal composition;
compound III-5-1 accounting for 8 percent of the total weight of the liquid crystal composition;
compound IV-1-1 accounting for 4 percent of the total weight of the liquid crystal composition;
compound IV-2-1 accounting for 5 percent of the total weight of the liquid crystal composition; and
and the compound V-2 accounts for 6 percent of the total weight of the liquid crystal composition.
10. A liquid crystal display device comprising the liquid crystal composition of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814476.3A CN106753427B (en) | 2015-11-19 | 2015-11-19 | Liquid-crystal composition and its display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814476.3A CN106753427B (en) | 2015-11-19 | 2015-11-19 | Liquid-crystal composition and its display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106753427A CN106753427A (en) | 2017-05-31 |
| CN106753427B true CN106753427B (en) | 2018-12-18 |
Family
ID=58885227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510814476.3A Active CN106753427B (en) | 2015-11-19 | 2015-11-19 | Liquid-crystal composition and its display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106753427B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773857B (en) * | 2018-07-03 | 2023-09-19 | 晶美晟光电材料（南京）有限公司 | Liquid crystal composition with negative dielectric constant and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010270074A (en) * | 2009-05-22 | 2010-12-02 | Dic Corp | Fluorobenzene derivative and liquid crystal composition containing the compound |
| CN102307838A (en) * | 2009-02-17 | 2012-01-04 | Jnc株式会社 | Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition using this and liquid crystal display device |
| JP2012097222A (en) * | 2010-11-04 | 2012-05-24 | Dic Corp | Nematic liquid crystal composition and liquid crystal display element using the same |
| CN104419427A (en) * | 2013-08-20 | 2015-03-18 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and application thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5359016B2 (en) * | 2008-05-08 | 2013-12-04 | Ｊｎｃ株式会社 | Liquid crystal composition and liquid crystal display element |
| JP5515505B2 (en) * | 2009-08-12 | 2014-06-11 | Ｊｎｃ株式会社 | Liquid crystal composition and liquid crystal display element |
| 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 |
-
2015
- 2015-11-19 CN CN201510814476.3A patent/CN106753427B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307838A (en) * | 2009-02-17 | 2012-01-04 | Jnc株式会社 | Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition using this and liquid crystal display device |
| JP2010270074A (en) * | 2009-05-22 | 2010-12-02 | Dic Corp | Fluorobenzene derivative and liquid crystal composition containing the compound |
| JP2012097222A (en) * | 2010-11-04 | 2012-05-24 | Dic Corp | Nematic liquid crystal composition and liquid crystal display element using the same |
| CN104419427A (en) * | 2013-08-20 | 2015-03-18 | 江苏和成显示科技股份有限公司 | Liquid crystal composition and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106753427A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9683173B2 (en) | Nematic liquid crystal composition and liquid crystal display element using same | |
| CN102307968B (en) | Liquid-crystal composition and liquid-crystal display device | |
| CN106318405B (en) | Liquid crystal composition and application thereof | |
| CN104837955A (en) | Liquid crystal composition and liquid crystal display element | |
| CN109880640A (en) | Liquid-crystal composition, liquid crystal display element, liquid crystal display | |
| KR20150116449A (en) | Polymer stable alignment type liquid crystal composition and use thereof | |
| TW201412956A (en) | Liquid crystal display element, and liquid crystal composition and use thereof | |
| CN105219398A (en) | Liquid-crystal composition and liquid crystal display device | |
| CN112980464A (en) | Negative liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN111117659A (en) | Liquid crystal composition and display device thereof | |
| TWI526525B (en) | Liquid crystal composition and its use, and liquid crystal display device | |
| CN106147785B (en) | Liquid-crystal composition and its liquid crystal display device | |
| CN113403088A (en) | Negative dielectric anisotropy liquid crystal composition and liquid crystal display device | |
| TWI599641B (en) | Liquid crystal composition and its use, and liquid crystal display element | |
| CN109207164A (en) | A kind of liquid-crystal composition and its application | |
| CN104371740B (en) | Liquid-crystal composition and its application | |
| CN112724987B (en) | Liquid crystal composition having positive dielectric anisotropy and liquid crystal display device thereof | |
| CN106753427B (en) | Liquid-crystal composition and its display device | |
| CN112538357B (en) | Liquid crystal composition and liquid crystal display device thereof | |
| CN106753425B (en) | Liquid-crystal composition and its display device | |
| CN109593531A (en) | A kind of liquid-crystal composition | |
| CN116064051A (en) | Liquid crystal composition and liquid crystal display device comprising same | |
| CN106753426B (en) | Liquid-crystal composition and its display device | |
| CN113736479A (en) | Negative dielectric anisotropy liquid crystal composition and liquid crystal display device | |
| TWI655278B (en) | Liquid crystal composition and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 212212 Yangtze River bridge, Jiangsu, Yangzhong, Yangzhong on the eastern side of the road Applicant after: JIANGSU HECHENG DISPLAY TECHNOLOGY Co.,Ltd. Address before: 212212 Yangtze River bridge, Jiangsu, Yangzhong, Yangzhong on the eastern side of the road Applicant before: Jiangsu Hecheng Display Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 2/F, Sino Japan Cooperation Innovation Park, No. 16 Zidan Road, Qinhuai District, Nanjing, Jiangsu Province, 210014 Patentee after: JIANGSU HECHENG DISPLAY TECHNOLOGY Co.,Ltd. Address before: 212212 East Side of Yangzhong Yangtze River Bridge, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU HECHENG DISPLAY TECHNOLOGY Co.,Ltd. |