CN105505403B - Liquid-crystal composition and its display device - Google Patents
Liquid-crystal composition and its display device Download PDFInfo
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- CN105505403B CN105505403B CN201410558714.4A CN201410558714A CN105505403B CN 105505403 B CN105505403 B CN 105505403B CN 201410558714 A CN201410558714 A CN 201410558714A CN 105505403 B CN105505403 B CN 105505403B
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Abstract
The present invention relates to liquid-crystal composition and its display devices.The liquid-crystal composition includes：The compound of at least one general formula I 1 and/or general formula I 2；The compound of at least one general formula II；The compound of at least one general formula III；And the compound of at least one general formulae IV.The liquid-crystal composition of the present invention provided has suitable optical anisotropy, suitable dielectric anisotropy, wider nematic temperature range, high voltage retention, high resistivity and fast response speed.The liquid-crystal composition can make the liquid crystal display have the characteristics such as the response time is short, displays contrast suitable for liquid crystal display.
Description
Technical Field
The present invention relates to a liquid crystal composition, and more particularly, to a liquid crystal composition having suitable optical anisotropy, suitable dielectric anisotropy, a wide nematic phase temperature range, a high voltage holding ratio, a high resistivity, and a fast response speed, and a liquid crystal display device including the same.
Background
The liquid crystal material is a mixture of organic rod-shaped small molecular compounds which have liquid fluidity and crystal anisotropy at a certain temperature. Liquid crystal materials in various phases have been developed for use in liquid crystal display devices depending on the properties of the liquid crystal materials.
For liquid crystal displays, liquid crystal compounds and liquid crystal media having good chemical and thermal stability, good stability to electric fields and electromagnetic radiation, suitable optical anisotropy, faster response speed, and lower threshold voltage are in line with the current demand. Since liquid crystals are usually used as a mixture of several components, the mutual solubility of the components is important, and liquid crystals have to meet different requirements, such as electrical conductivity, dielectric anisotropy, and optical anisotropy, depending on the cell type and the application field, but the disadvantages of longer response time, lower resistivity, and too high operating voltage, such as EP0673986, DE19528106, and DE19528107, are significant in the prior art.
The response speed is an important evaluation index of the liquid crystal display, and if the response speed is too slow, a smear phenomenon occurs on a display picture, so that the liquid crystal display is required to have a fast response speed. In order to increase the response speed of the liquid crystal display, methods of reducing the cell thickness, improving the driving method, increasing the driving voltage, using a liquid crystal composition having a fast response, and the like may be selected. However, no matter what method is adopted, the other performances of the liquid crystal display are weakened. If the driving method is changed, the driving cost of the IC is increased and the circuit is more complicated; the power consumption is increased along with the increase of the driving voltage; the reduction of the box thickness can increase the difficulty of the production process, cause the defects of uneven box thickness and the like, and lead to the reduction of the yield of the liquid crystal display.
None of the series of compounds having liquid crystalline mesophases disclosed so far includes monomer compounds satisfying all of these requirements, and therefore, in the field of liquid crystal materials, novel liquid crystal compositions having improved properties are required. In particular, for many types of applications, the liquid crystal composition must have a suitably wide nematic phase range, a suitable refractive index, dielectric anisotropy, and low-temperature storage stability.
The present invention has an object to provide a liquid crystal composition having a high upper limit temperature of a nematic phase and a low lower limit temperature of the nematic phase (i.e., a wide phase transition temperature range); the viscosity is low; suitable optical anisotropy; suitable dielectric anisotropy; good high temperature stability, etc. It is another object of the present invention to provide a liquid crystal display device which is a composition having suitable optical anisotropy, suitable dielectric anisotropy, good high-temperature stability, and the like, and which makes the liquid crystal display device have characteristics of short response time, good display contrast, and the like.
Disclosure of Invention
The object of the present invention is to provide a liquid crystal composition having a wide nematic phase temperature range, a high voltage holding ratio, a high resistivity and a fast response speed. The liquid crystal composition can be suitable for liquid crystal displays, so that the liquid crystal displays have the characteristics of short response time, good display contrast and the like.
One aspect of the present invention provides a liquid crystal composition comprising:
one or more compounds selected from the group consisting of compounds of the formula I-1 and/or compounds of the formula I-2
One or more compounds selected from the group consisting of compounds of formula II
One or more compounds selected from the group consisting of compounds of formula III
And
one or more compounds selected from the group consisting of compounds of formula IV
Wherein,
R1、R2、R3、R4、R5and R6The same or different, each independently represents H, an alkyl or alkoxy group having 1 to 12 carbon atoms, or an alkenyl group having 2 to 12 carbon atoms;
x represents F or-OCF3；
L1And L2The same or different, each independently represents H or F;
Z1represents-CH2CH2-COO-, -CH ═ CH-, or a single bond;
to representOrThe above-mentionedOne or more hydrogen atoms thereon may be substituted by-F, andto representWhen L is1And L2Not H at the same time;
m represents 2 or 3.
Preferably, the compound of formula I-1 and/or formula I-2 comprises 1-15% of the total weight of the liquid crystal composition; the compound of the general formula II accounts for 1-20% of the total weight of the liquid crystal composition; and the compound of the general formula III accounts for 1-20% of the total weight of the liquid crystal composition; and the compound of the general formula IV accounts for 15-70% of the total weight of the liquid crystal composition.
In an embodiment of the present invention, the liquid crystal composition further comprises:
0-60% of one or more compounds selected from formula V based on the total weight of the liquid crystal composition
Wherein,
R7and R8The same or different, each independently represents H, an alkyl or alkoxy group having 1 to 12 carbon atoms, or an alkenyl group having 2 to 12 carbon atoms;
to representOrThe above-mentionedOne or more hydrogen atoms on may be substituted with-F;
n represents 1, 2 or 3.
In an embodiment of the present invention, more preferably, the compound of formula I-1 and/or formula I-2 comprises 5 to 15% by weight of the total liquid crystal composition; the compound of the general formula II accounts for 2-15% of the total weight of the liquid crystal composition; and the compound of the general formula III accounts for 5-15% of the total weight of the liquid crystal composition; the compound of the general formula IV accounts for 15-66% of the total weight of the liquid crystal composition; and the compound of the general formula V accounts for 30-56% of the total weight of the liquid crystal composition.
In the embodiment of the present invention, as a particularly preferable mode, it is particularly preferable that the compound of the formula I-1 and/or the formula I-2 accounts for 7 to 15% by weight of the total weight of the liquid crystal composition.
In an embodiment of the present invention, it is preferable that the compound of the general formula I-1 is one or more compounds selected from the group consisting of:
and
in an embodiment of the present invention, it is preferable that the compound of the general formula I-2 is one or more compounds selected from the group consisting of:
and
in an embodiment of the present invention, it is preferred that the compound of formula ii is selected from one or more compounds of the group consisting of:
and
in an embodiment of the present invention, it is preferred that the compound of formula iii is selected from one or more compounds of the group consisting of:
and
in an embodiment of the present invention, it is preferred that the compound of formula iv is selected from one or more compounds of the group consisting of:
and
wherein,
R6represents an alkyl group having 1 to 7 carbon atoms;
Z2and Z3The same or different, each independently represent-CH2CH2-or a single bond, and Z2And Z3Not simultaneously a single bond.
In an embodiment of the present invention, the compound of the general formula IV-1 is one or more compounds selected from the group consisting of:
and
the compound of the general formula IV-2 is selected from one or more compounds in the group consisting of the following compounds:
and
the compound of the general formula IV-3 is selected from one or more compounds in the group consisting of the following compounds:
and
the compound of the general formula IV-4 is selected from one or more compounds in the group consisting of the following compounds:
and
the compound of the general formula IV-5 is selected from one or more compounds in the group consisting of the following compounds:
and
the compound of the general formula IV-6 is selected from one or more compounds in the group consisting of the following compounds:
and
the compound of the general formula IV-7 is selected from one or more compounds in the group consisting of the following compounds:
and
the compound of the general formula IV-8 is selected from one or more compounds in the group consisting of the following compounds:
and
the compound of the general formula IV-9 is selected from one or more compounds in the group consisting of the following compounds:
and
the compound of the general formula IV-10 is selected from one or more compounds in the group consisting of the following compounds:
and
the compound of the general formula IV-11 is selected from one or more compounds in the group consisting of the following compounds:
and
and is
The compound of the general formula IV-12 is selected from one or more compounds in the group consisting of the following compounds:
and
in an embodiment of the present invention, it is preferred that said compound of formula v is selected from one or more compounds in the group consisting of:
and
wherein,
R7and R8The alkyl groups may be the same or different and each independently represents an alkyl group having 1 to 7 carbon atoms.
Particularly preferably, the compounds of the formula V are V-2, V-3, V-8, V-9, V-10.
In some embodiments, the compound of formula v-1 is selected from one or more compounds in the group consisting of:
and
the compound of formula V-2 is selected from one or more compounds of the group consisting of:
and
the compound of formula V-3 is selected from one or more compounds from the group consisting of:
and
the compound of formula V-4 is selected from one or more compounds from the group consisting of:
and
the compound of formula V-5 is selected from one or more compounds of the group consisting of:
and
the compound of formula V-6 is selected from one or more compounds of the group consisting of:
and
the compound of formula V-7 is selected from one or more compounds of the group consisting of:
and
the compound of formula V-8 is selected from one or more compounds of the group consisting of:
and
the compound of formula V-9 is selected from one or more compounds of the group consisting of:
and
and is
The compound of formula V-10 is selected from one or more compounds of the group consisting of:
and
the invention also provides a liquid crystal display comprising the provided liquid crystal composition.
The liquid crystal medium comprising the liquid crystal composition is determined to have proper optical anisotropy, proper dielectric anisotropy, wide nematic phase temperature range, high voltage holding ratio, high resistivity and high response speed by performing a combination experiment on the compounds and comparing the compounds with a comparative example. The liquid crystal composition can be suitable for liquid crystal displays, so that the liquid crystal displays have the characteristics of short response time, good display contrast and the like.
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 7 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: nCPUF, where n in the code represents the number of C atoms in the left alkyl group, e.g., n is "3", i.e., the alkyl group is-C3H7(ii) a C in the code represents cyclohexane.
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 ℃; the dielectric test cell was of the type TN90, the cell thickness being 7 μm.
And the testing conditions are that the temperature is 25 ℃, the frequency is 1KHz, the testing box is TN90 type, and the box thickness is 7 mu m.
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.
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 according to the compounds and weight percentages 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 according to the compounds and weight percentages 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
Example 5
The liquid crystal composition of example 5 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
Example 6
The liquid crystal composition of example 6 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 7
The liquid crystal composition of example 7 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
Example 8
The liquid crystal composition of example 8 was prepared according to the compounds and weight percentages listed in table 11, and filled between two substrates of a liquid crystal display for performance testing, the test data are shown in the following table:
TABLE 11 liquid crystal composition formulations and their test properties
Example 9
The liquid crystal composition of example 9 was prepared according to the compounds and weight percentages listed in table 12, and filled between two substrates of a liquid crystal display for performance testing, the test data are shown in the following table:
TABLE 12 liquid crystal composition formulations and their test properties
From the above data of examples, it can be seen that the liquid crystal composition provided by the present invention has suitable optical anisotropy, suitable dielectric anisotropy, wide nematic phase temperature range, fast response speed and small threshold voltage, and can be applied to liquid crystal displays. Compared with comparative examples 1 and 2, when the dielectric anisotropy value and the clearing point are close, the liquid crystal composition provided by the invention has a larger optical anisotropy value, a smaller viscosity and a smaller threshold voltage, can meet the requirements of fast response and good display of a liquid crystal display, and achieves obvious technical progress.
Claims (13)
1. A liquid crystal composition, comprising:
one or more compounds selected from the group consisting of compounds of the formula I-1 and/or compounds of the formula I-2
One or more compounds selected from the group consisting of compounds of formula II
One or more compounds selected from the group consisting of compounds of formula III
And
one or more compounds selected from the group consisting of compounds of formula IV
Wherein,
R1、R2、R3、R4、R5and R6The same or different, each independently represents H, an alkyl or alkoxy group having 1 to 12 carbon atoms, or an alkenyl group having 2 to 12 carbon atoms;
x represents F or-OCF3；
L1And L2The same or different, each independently represents H or F;
Z1represents-CH2CH2-, -COO-, -CH ═ CH-or a single bond;
to representThe above-mentionedOne or more hydrogen atoms thereon may be substituted by-F, andto representWhen L is1And L2Not H at the same time;
m represents 2 or 3;
the compound of the general formula III accounts for 1-20% of the total weight of the liquid crystal composition.
2. The liquid crystal composition of claim 1, wherein the compound of formula i-1 and/or formula i-2 comprises 1 to 15% by weight of the total liquid crystal composition; the compound of the general formula II accounts for 1-20% of the total weight of the liquid crystal composition; and the compound of the general formula IV accounts for 15-70% of the total weight of the liquid crystal composition.
3. The liquid crystal composition of claim 2, further comprising:
0-60% of one or more compounds selected from formula V based on the total weight of the liquid crystal composition
Wherein,
R7and R8The same or different, each independently represents H, an alkyl or alkoxy group having 1 to 12 carbon atoms, or an alkenyl group having 2 to 12 carbon atoms;
to representThe above-mentionedOne or more hydrogen atoms on may be substituted with-F;
n represents 1, 2 or 3.
4. The liquid crystal composition of claim 1, wherein the compound of formula i-1 is selected from one or more compounds of the group consisting of:
and is
The compound of the general formula I-2 is selected from one or more compounds of the group consisting of:
5. the liquid crystal composition of claim 1, wherein the compound of formula ii is selected from one or more compounds of the group consisting of:
6. the liquid crystal composition of claim 1, wherein the compound of formula iii is selected from one or more compounds of the group consisting of:
7. the liquid crystal composition of claim 1, wherein the compound of formula iv is selected from one or more compounds of the group consisting of:
wherein,
R6represents an alkyl group having 1 to 7 carbon atoms;
Z2and Z3The same or different, each independently represent-CH2CH2-or a single bond, and Z2And Z3Not simultaneously a single bond.
8. The liquid crystal composition of claim 7, wherein the compound of formula iv-1 is selected from one or more compounds of the group consisting of:
the compound of the general formula IV-2 is selected from one or more compounds in the group consisting of the following compounds:
the compound of the general formula IV-3 is selected from one or more compounds in the group consisting of the following compounds:
the compound of the general formula IV-4 is selected from one or more compounds in the group consisting of the following compounds:
the compound of the general formula IV-5 is selected from one or more compounds in the group consisting of the following compounds:
the compound of the general formula IV-6 is selected from one or more compounds in the group consisting of the following compounds:
the compound of the general formula IV-7 is selected from one or more compounds in the group consisting of the following compounds:
the compound of the general formula IV-8 is selected from one or more compounds in the group consisting of the following compounds:
the compound of the general formula IV-9 is selected from one or more compounds in the group consisting of the following compounds:
the compound of the general formula IV-10 is selected from one or more compounds in the group consisting of the following compounds:
the compound of the general formula IV-11 is selected from one or more compounds in the group consisting of the following compounds:
and is
The compound of the general formula IV-12 is selected from one or more compounds in the group consisting of the following compounds:
9. the liquid crystal composition of claim 3, wherein the compound of formula V is selected from one or more compounds of the group consisting of:
wherein,
R7and R8The alkyl groups may be the same or different and each independently represents an alkyl group having 1 to 7 carbon atoms.
10. The liquid crystal composition of claim 9, wherein the compound of formula v-1 is selected from one or more compounds of the group consisting of:
the compound of formula V-2 is selected from one or more compounds of the group consisting of:
the compound of formula V-3 is selected from one or more compounds from the group consisting of:
the compound of formula V-4 is selected from one or more compounds from the group consisting of:
the compound of formula V-5 is selected from one or more compounds of the group consisting of:
the compound of formula V-6 is selected from one or more compounds of the group consisting of:
the compound of formula V-7 is selected from one or more compounds of the group consisting of:
the compound of formula V-8 is selected from one or more compounds of the group consisting of:
the compound of formula V-9 is selected from one or more compounds of the group consisting of:
and is
The compound of formula V-10 is selected from one or more compounds of the group consisting of:
11. the liquid crystal composition of claim 3, wherein the compound of formula i-1 and/or formula i-2 comprises 5 to 15% by weight of the total liquid crystal composition; the compound of the general formula II accounts for 2-15% of the total weight of the liquid crystal composition; and the compound of the general formula III accounts for 5-15% of the total weight of the liquid crystal composition; the compound of the general formula IV accounts for 15-66% of the total weight of the liquid crystal composition; and the compound of the general formula V accounts for 30-56% of the total weight of the liquid crystal composition.
12. The liquid crystal composition according to any one of claims 1 to 11, wherein the liquid crystal composition comprises:
compound II-2 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound V-2-1 accounting for 41 percent of the total weight of the liquid crystal composition;
a compound IV-2-2 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-2-3 accounting for 6 percent of the total weight of the liquid crystal composition;
compound V-8-1 accounting for 10 percent of the total weight of the liquid crystal composition;
a compound IV-10-1 accounting for 4% of the total weight of the liquid crystal composition;
a compound IV-10-3 accounting for 4% of the total weight of the liquid crystal composition;
compound III-1 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
compound III-2 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
compound I-1-1 accounting for 4% 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; and
a compound IV-6-2 accounting for 5 percent of the total weight of the liquid crystal composition;
alternatively, the liquid crystal composition comprises:
a compound IV-7-2 accounting for 6 percent of the total weight of the liquid crystal composition;
42% by weight of compound V-2-1 based on the total weight of the liquid crystal composition;
a compound IV-2-2 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-2-3 accounting for 6 percent of the total weight of the liquid crystal composition;
compound V-8-1 accounting for 8 percent of the total weight of the liquid crystal composition;
a compound IV-10-1 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-10-3 accounting for 5% 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-2 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
compound I-1-1 accounting for 4% 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; and
a compound IV-6-2 accounting for 5 percent of the total weight of the liquid crystal composition;
alternatively, the liquid crystal composition comprises:
a compound IV-3-3 accounting for 3 percent of the total weight of the liquid crystal composition;
compound V-2-1 accounting for 50 percent of the total weight of the liquid crystal composition;
compound II-2 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-2-3 accounting for 6 percent of the total weight of the liquid crystal composition;
6 percent of compound V-8-1 based on the total weight of the liquid crystal composition;
a compound IV-10-1 accounting for 8 percent of the total weight of the liquid crystal composition;
compound III-1 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
6 percent of compound III-2 based on the total weight of the liquid crystal composition;
compound I-1-1 accounting for 6 percent of the total weight of the liquid crystal composition; and
compound I-1-2 accounting for 4% of the total weight of the liquid crystal composition;
alternatively, the liquid crystal composition comprises:
a compound IV-4-2 accounting for 14 percent of the total weight of the liquid crystal composition;
compound V-2-1 accounting for 48 percent of the total weight of the liquid crystal composition;
compound II-2 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound V-10-2 accounting for 3 percent of the total weight of the liquid crystal composition;
a compound V-10-1 accounting for 3 percent of the total weight of the liquid crystal composition;
compound III-1 in an amount of 4% by weight based on the total weight of the liquid crystal composition;
compound III-2 in an amount of 4% by weight based on the total weight of the liquid crystal composition;
compound I-2-2 accounting for 5% of the total weight of the liquid crystal composition;
compound I-2-1 accounting for 5 percent of the total weight of the liquid crystal composition;
compound I-2-3 accounting for 5% of the total weight of the liquid crystal composition; and
a compound IV-10-2 accounting for 3 percent of the total weight of the liquid crystal composition;
alternatively, the liquid crystal composition comprises:
a compound IV-4-2 accounting for 12 percent of the total weight of the liquid crystal composition;
a compound IV-4-3 accounting for 8% of the total weight of the liquid crystal composition;
compound V-2-1 accounting for 40 percent of the total weight of the liquid crystal composition;
a compound V-3-1 accounting for 9 percent of the total weight of the liquid crystal composition;
a compound IV-10-2 accounting for 2% of the total weight of the liquid crystal composition;
compound III-1 in an amount of 5% by weight based on the total weight of the liquid crystal composition;
compound II-2 accounting for 6 percent of the total weight of the liquid crystal composition;
compound II-3 accounting for 6 percent of the total weight of the liquid crystal composition;
compound I-2-1 accounting for 4% of the total weight of the liquid crystal composition;
compound I-2-2 accounting for 4% of the total weight of the liquid crystal composition; and
compound I-2-3 accounting for 4% of the total weight of the liquid crystal composition;
alternatively, the liquid crystal composition comprises:
compound V-9-2 accounting for 1 percent of the total weight of the liquid crystal composition;
a compound IV-4-2 accounting for 15 percent of the total weight of the liquid crystal composition;
a compound IV-4-3 accounting for 7% of the total weight of the liquid crystal composition;
43% by weight of compound V-2-1 based on the total weight of the liquid crystal composition;
a compound IV-7-2 accounting for 5 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 II-3 accounting for 2 percent of the total weight of the liquid crystal composition;
compound V-10-2 accounting for 2 percent of the total weight of the liquid crystal composition;
compound V-10-1 accounting for 2 percent of the total weight of the liquid crystal composition;
compound III-1 in an amount of 4% by weight based on the total weight of the liquid crystal composition;
compound III-2 in an amount of 4% by weight based on the total weight of the liquid crystal composition;
compound I-2-2 accounting for 4% of the total weight of the liquid crystal composition;
compound I-2-1 accounting for 4% of the total weight of the liquid crystal composition; and
compound I-2-3 accounting for 4% of the total weight of the liquid crystal composition;
alternatively, the liquid crystal composition comprises:
a compound IV-8-1 accounting for 6 percent of the total weight of the liquid crystal composition;
compound V-8-1 accounting for 8 percent of the total weight of the liquid crystal composition;
a compound V-2-1 accounting for 41 percent of the total weight of the liquid crystal composition;
a compound IV-10-1 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-10-2 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-1-2 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-1-4 accounting for 5 percent of the total weight of the liquid crystal composition;
compound II-3 accounting for 2 percent of the total weight of the liquid crystal composition;
3% of compound III-1 by weight of the total liquid crystal composition;
7% by weight of compound III-2 based on 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-2-1 accounting for 4% of the total weight of the liquid crystal composition; and
a compound IV-6-2 accounting for 4 percent of the total weight of the liquid crystal composition;
alternatively, the liquid crystal composition comprises:
a compound IV-8-1 accounting for 6 percent of the total weight of the liquid crystal composition;
6 percent of compound V-8-1 based on the total weight of the liquid crystal composition;
a compound V-2-1 accounting for 41 percent of the total weight of the liquid crystal composition;
a compound IV-10-1 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-10-2 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-1-2 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-1-4 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound II-3 accounting for 4 percent of the total weight of the liquid crystal composition;
3% of compound III-1 by weight of the total liquid crystal composition;
7% by weight of compound III-2 based on the total weight of the liquid crystal composition;
3% of compound I-1-2 by weight of the total liquid crystal composition;
compound I-2-1 accounting for 4% of the total weight of the liquid crystal composition; and
a compound IV-6-2 accounting for 4 percent of the total weight of the liquid crystal composition;
alternatively, the liquid crystal composition comprises:
a compound IV-8-1 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-7-2 accounting for 8 percent of the total weight of the liquid crystal composition;
a compound IV-2-1 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-2-2 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-4-1 accounting for 8 percent of the total weight of the liquid crystal composition;
a compound IV-4-2 accounting for 8 percent of the total weight of the liquid crystal composition;
a compound IV-10-1 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-10-2 accounting for 5 percent of the total weight of the liquid crystal composition;
a compound IV-1-2 accounting for 6 percent of the total weight of the liquid crystal composition;
a compound IV-1-4 accounting for 6 percent of the total weight of the liquid crystal composition;
compound II-3 accounting for 5 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;
3% of compound III-1 by weight of the total liquid crystal composition;
7% by weight of compound III-2 based on the total weight of the liquid crystal composition;
3% of compound I-1-1 by weight of the total weight of the liquid crystal composition;
3% of compound I-1-2 by weight of the total liquid crystal composition;
3% of compound I-2-1 by weight of the total liquid crystal composition;
3% of compound I-2-2 by weight of the total weight of the liquid crystal composition;
3% of compound I-2-3 by weight of the total liquid crystal composition; and
a compound IV-6-2 accounting for 4 percent of the total weight of the liquid crystal composition.
13. A liquid crystal display comprising the liquid crystal composition according to any one of claims 1 to 12.
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| CN104946266B (en) * | 2015-07-13 | 2017-12-19 | 石家庄诚志永华显示材料有限公司 | Liquid-crystal composition |
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