CN110016353A - A kind of liquid crystal composition and its application - Google Patents

Abstract

The present invention relates to a kind of liquid-crystal composition and its applications.The liquid-crystal composition includes general formula I to general formula V.Liquid-crystal composition provided by the present invention has quick reaction speed, polymerizable compound can be shortened and polymerize the time used, substantially shorten the time required for liquid crystal display polymerization process, promote the yield of liquid crystal display, shorten liquid crystal display exposure duration in the environment, promotes the quality parameter of liquid crystal display.Therefore, liquid-crystal composition provided by the present invention is suitable for PSVA, SAVA display pattern liquid crystal display device；It is particularly suitable for PSVA liquid crystal display device.

Description

A kind of liquid crystal composition and its application

technical field

The invention relates to a liquid crystal composition and application thereof, belonging to the field of liquid crystal display.

Background technique

Negative liquid crystal was first proposed in the late 1980s. It is mainly used in VA mode. The VA display mode has very good contrast performance, but there are obvious viewing angle problems and response time problems. In order to solve the viewing angle problem, display technologies such as MVA, PVA, and CPA have been proposed. The essence of these technologies is to use multiple domains to solve the viewing angle problem, and good results have been achieved. However, due to the increased difficulty in the process and the problem of response time, it still plagued the display industry until the PSVA (Polymer Stabilized Vertical Alignment) technology was proposed, which utilizes polymers to achieve multi-domain and pretilt angle control for fast response and wide viewing angle of the LCD monitor.

The presence of polymerizable monomers in the liquid crystal can cause the voltage holding ratio of the liquid crystal to decrease. Therefore, it is necessary to increase the corresponding process in the liquid crystal display production process to fully react the residual polymerizable monomers. In order to ensure a sufficient reaction, the time is usually long; On the one hand, the process time will be prolonged and the production capacity will be reduced; on the other hand, due to the waiting time after the completion of the pre-process, the glass substrate needs to be exposed to the environment for a period of time, and the pollution source in the environment contaminates the surface layer of the panel, resulting in the deterioration of the quality of the liquid crystal display.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a liquid crystal composition that can react quickly, shortens the polymerization time of polymerizable monomers, improves the production capacity of liquid crystal displays, shortens the process interval time in the production process of liquid crystal displays, and improves the quality of liquid crystal displays.

The present invention provides a liquid crystal composition, which is characterized in that it includes a component A and a component B; wherein, the component A contains at least one liquid crystal compound represented by the general formula I, and at least one liquid crystal compound represented by the general formula II The represented liquid crystal compound contains at least one compound represented by the general formula IV and at least one or more compounds represented by the general formula V:

The B component is a polymerizable monomer represented by the general formula III:

R ₁ , R ₂ , R ₃ and R ₄ independently represent a C ₁ -C ₁₂ straight-chain alkyl group, a straight-chain alkoxy group or a C ₂ -C ₁₂ straight-chain alkenyl group;

R ₅ each independently represents a C ₁ -C ₁₂ straight-chain alkyl group; R ₆ each independently represents F, a C ₁ -C ₁₂ straight-chain alkyl group or a straight-chain alkoxy group;

R ₇ and R ₈ each independently represent a C ₁ -C ₁₂ straight-chain alkyl group, a straight-chain alkoxy group or a C ₂ -C ₁₂ straight-chain alkenyl group;

A ₁ and A ₂ each independently represent trans-1,4-cyclohexyl, 1,4-cyclohexene or 1,4-phenylene;

A ₃ and A ₄ independently represent trans-1,4-cyclohexyl or 1,4-phenylene;

L ₁ each independently represents H, CH ₃ or OCH ₃ ; L ₂ each independently represents H or F;

L ₃ , L ₄ , L ₅ , and L ₆ each independently represent H or F.

The liquid crystal composition is described in further detail below:

The compound represented by the general formula I is a bicyclic 2,3-difluorobenzene structure compound, which has a large negative dielectric anisotropy and excellent mutual solubility.

Specifically, the compound represented by general formula I is selected from one or more of IA or IB:

R ₁ each independently represents a C ₁ -C ₇ straight-chain alkyl group or a C ₂ -C ₇ straight-chain alkenyl group; R ₂ each independently represents a C ₁ -C ₇ straight-chain alkyl group or an alkoxy group.

Preferably, the compound represented by general formula I is selected from one or more of formula IA1 to formula IB16:

More preferably, the compound represented by general formula I is selected from one or more of IA6, IA8, IA14, IB6, IB7 and IB8; particularly preferably one or more of IA6, IA8, IA14 and IB6.

The compound represented by the general formula II is a tricyclic compound containing 2,3-difluorobenzene, and the compound has a large negative dielectric anisotropy and a high clearing point.

Specifically, the compound represented by the general formula II is selected from one or more of the formulas IIA to IIC:

wherein, R ₃ and R ₄ each independently represent a C ₁ -C ₇ straight-chain alkyl group, a straight-chain alkoxy group or a C ₂ -C ₇ straight-chain alkenyl group;

Preferably, the compound represented by general formula II is selected from one or more of formula IIA1 to formula IIC24:

More preferably, the compound represented by general formula II is selected from formula IIA1, IIA2, IIA9, IIA10, IIA11, IIA13, IIA14, IIA15, IIA16, IIA18, IIB6, IIB7, IIB10, IIC1, IIC2, IIC13, IIC14, IIC18, One or more of IIC22; further preferably, the compound represented by general formula II is selected from one or more of formula IIA10, IIA13, IIA14, IIA15, IIA16, IIA18, IIB6, IIB10, IIC13, IIC14, IIC22 ; Particularly preferably, the compound represented by general formula II is selected from one or more of formula IIA10, IIA13, IIA14, IIA15, IIA18, IIB6, IIC13, IIC14;

The compound represented by the general formula IV is a compound with a terphenyl structure, and when added to the liquid crystal composition, the optical anisotropy can be improved and the UV light energy can be rapidly absorbed.

Specifically, the compound represented by general formula IV is selected from one or more of IVA～IVE:

Wherein, R ₅ independently represents a C ₁ -C ₇ straight-chain alkyl group; R ₆ each independently represents a C ₁ -C ₇ straight-chain alkyl group or a straight-chain alkoxy group.

Preferably, the compound represented by the general formula IV is selected from one or more of IVA1～IVE24:

More preferably, the compound represented by general formula IV is selected from one or more of IVA2, IVA3, IVA4, IVB3, IVB4, IVC2, IVD1, IVD2, IVE2, IVE14, IVE21, IVE22; particularly preferred IVA2, IVB2, One or more of IVC2, IVE14, and IVE21.

The compound represented by the general formula V is a bicyclic neutral monomer, and the compound has very low rotational viscosity and excellent mutual solubility, which can effectively reduce the rotational viscosity of the liquid crystal composition and improve the response time.

Specifically, the compound represented by general formula V is selected from one or more of formula VA～formula VC:

Wherein, R ₇ each independently represents a C ₁ -C ₈ straight-chain alkyl group; R ₈ each independently represents a C ₁ -C ₇ straight-chain alkyl group, a straight-chain alkoxy group or a C ₂ -C ₇ straight-chain alkyl group alkenyl.

Preferably, the compound represented by the general formula V is selected from one or more of the formulas VA1 to VC38:

Preferably, the compound represented by general formula V is selected from the group consisting of formula VA4, VA6, VA10, VA11, VA24, VA28, VB14, VB18, VB22, VC2, VC4, VC6, VC22, VC24, VC26, VC28, VC29, VC34 One or more, more preferably, the compound represented by general formula V is selected from one or more of formula VA6, VA10, VA11, VA28, VB18, VB22, VC2, VC4, VC6, VC22, VC26, VC34 ; Particularly preferably, the compound represented by general formula V is selected from one or more of formulae VA6, VA10, VA11, VB18, VA28, VB22, VC6, VC22, and VC34.

The liquid crystal composition provided by the present invention may further comprise one or more compounds selected from the structure of general formula VI:

R ₉ and R ₁₀ each independently represent a C ₁ -C ₁₂ straight-chain alkyl group; A ₅ each independently represents a trans-1,4-cyclohexyl group or a 1,4-phenylene group.

The compound represented by the general formula VI has a high clearing point and a large elastic constant, which can improve the clearing point and elastic constant of the liquid crystal composition;

Specifically, the compound represented by general formula VI is selected from one or more of formula VIA and formula VIB:

wherein, R ₉ and R ₁₀ each independently represent a C ₁ -C ₇ straight-chain alkyl group;

Preferably, the compound represented by general formula VI is selected from one or more of formula VIA1 to formula VIB12:

More preferably, the compound represented by general formula VI is selected from one or more of formula VIA2, VIA6, VIA10, VIB2, VIB6, VIB8, further preferably, the compound represented by general formula VI is selected from formula VIA2, VIA6 One or more of , VIB2, VIB6; particularly preferably, the compound represented by the general formula VI is selected from one or two of the formula, VIA2, VIB2, VIB6.

The compound represented by the general formula III is a compound containing an acrylate structure, which polymerizes under UV light to form a polymer network and align the liquid crystal molecules. At present, PSVA mostly uses polymerizable monomers containing methacrylate structure. In the present invention, after the polymerizable compound polymer group is replaced by acrylate, the polymerization reaction resistance is reduced, the polymerization speed is increased, the rapid reaction of the polymerizable monomer is promoted, and the polymerization is reduced. time required for the process.

Specifically, the compound represented by the general formula III is selected from one or more of IIIA～IIIE:

Preferably, the compound represented by general formula III is selected from one or more of IIIA, IIIC, and IIIE;

Specifically, the liquid crystal composition provided by the present invention includes A component and B component; wherein, the amount of the B component (ie, the polymerizable compound of the general formula III) is the A component in the liquid crystal composition. (that is, the mixture composed of other liquid crystal compounds) 0.1 to 5% of the total weight, more preferably the amount is 0.2 to 0.5% of the weight of other liquid crystal compounds in the liquid crystal composition; wherein,

The A component includes the following components by weight:

(1) 1-45% of the compound represented by the general formula I;

(2) 3-55% of the compound represented by the general formula II;

(3) 1-25% of the compound represented by the general formula IV;

(4) 10-70% of the compound represented by the general formula V;

(5) 0-35% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 3-38% of the compound represented by the general formula I;

(2) 5-45% of the compound represented by the general formula II;

(3) 1-18% of the compound represented by the general formula IV;

(4) 20-65% of the compound represented by the general formula V;

(5) 0-25% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 4-33% of the compound represented by the general formula I;

(2) 10-40% of the compound represented by the general formula II;

(3) 2-14% of the compound represented by the general formula IV;

(4) 26-58% of the compound represented by the general formula V;

(5) 0-21% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 18-38% of the compound represented by the general formula I;

(2) 8-39% of the compound represented by the general formula II;

(3) 2-18% of the compound represented by the general formula IV;

(4) 20-50% of the compound represented by the general formula V;

(5) 0-25% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 18-33% of the compound represented by the general formula I;

(2) 10-34% of the compound represented by the general formula II;

(3) 3-14% of the compound represented by the general formula IV;

(4) 26-46% of the compound represented by the general formula V;

(5) 0-21% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 3-22% of the compound represented by the general formula I;

(2) 22-45% of the compound represented by the general formula II;

(3) 1-15% of the compound represented by the general formula IV;

(4) 30-53% of the compound represented by the general formula V;

(5) 0-15% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 4-22% of the compound represented by the general formula I;

(2) 27-40% of the compound represented by the general formula II;

(3) 2-10% of the compound represented by the general formula IV;

(4) 35-48% of the compound represented by the general formula V;

(5) 0-12% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 3-33% of the compound represented by the general formula I;

(2) 25-45% of the compound represented by the general formula II;

(3) 1-15% of the compound represented by the general formula IV;

(4) 26-62% of the compound represented by the general formula V;

(5) 0-15% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 4-28% of the compound represented by the general formula I;

(2) 25-40% of the compound represented by the general formula II;

(3) 2-12% of the compound represented by the general formula IV;

(4) 31-58% of the compound represented by the general formula V;

(5) 0-12% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 6-37% of the compound represented by the general formula I;

(2) 8-36% of the compound represented by the general formula II;

(3) 2-18% of the compound represented by the general formula IV;

(4) 20-58% of the compound represented by the general formula V;

(5) 0-25% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 8-33% of the compound represented by the general formula I;

(2) 10-32% of the compound represented by the general formula II;

(3) 3-14% of the compound represented by the general formula IV;

(4) 26-54% of the compound represented by the general formula V;

(5) 0-21% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 4-33% of the compound represented by the general formula I;

(2) 10-40% of the compound represented by the general formula II;

(3) 4-11% of the compound represented by the general formula IV;

(4) 26-58% of the compound represented by the general formula V;

(5) 0-21% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 4-33% of the compound represented by the general formula I;

(2) 15-40% of the compound represented by the general formula II;

(3) 4-7% of the compound represented by the general formula IV;

(4) 26-58% of the compound represented by the general formula V;

(5) 0-21% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 3-33% of the compound represented by the general formula I;

(2) 8-45% of the compound represented by the general formula II;

(3) 1-18% of the compound represented by the general formula IV;

(4) 35-63% of the compound represented by the general formula V;

(5) 0-25% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 4-28% of the compound represented by the general formula I;

(2) 10-40% of the compound represented by the general formula II;

(3) 2-14% of the compound represented by the general formula IV;

(4) 35-58% of the compound represented by the general formula V;

(5) 0-21% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 10-36% of the compound represented by the general formula I;

(2) 8-38% of the compound represented by the general formula II;

(3) 2-18% of the compound represented by the general formula IV;

(4) 20-41% of the compound represented by the general formula V;

(5) 0-25% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 14-33% of the compound represented by the general formula I;

(2) 10-35% of the compound represented by the general formula II;

(3) 3-14% of the compound represented by the general formula IV;

(4) 26-41% of the compound represented by the general formula V;

(5) 0-21% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 5-38% of the compound represented by the general formula I;

(2) 8-40% of the compound represented by the general formula II;

(3) 2-18% of the compound represented by the general formula IV;

(4) 20-55% of the compound represented by the general formula V;

(5) 1 to 25% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 8-33% of the compound represented by the general formula I;

(2) 10-35% of the compound represented by the general formula II;

(3) 3-14% of the compound represented by the general formula IV;

(4) 26-51% of the compound represented by the general formula V;

(5) 2-21% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 3-33% of the compound represented by the general formula I;

(2) 22-45% of the compound represented by the general formula II;

(3) 1-15% of the compound represented by the general formula IV;

(4) 30 to 63% of the compound represented by the general formula V.

More preferably, the A component includes the following components by weight:

(1) 4-28% of the compound represented by the general formula I;

(2) 27-40% of the compound represented by the general formula II;

(3) 2-12% of the compound represented by the general formula IV;

(4) 35 to 58% of the compound represented by the general formula V.

Preferably, the A component includes the following components by weight:

(1) 14-33% of the compound represented by the general formula I;

(2) 20-35% of the compound represented by the general formula II;

(3) 2-12% of the compound represented by the general formula IV;

(4) 26-54% of the compound represented by the general formula V;

(5) 0-16% of the compound represented by the general formula VI.

More preferably, the A component includes the following components by weight:

(1) 14-33% of the compound represented by the general formula I;

(2) 20-35% of the compound represented by the general formula II;

(3) 4-9% of the compound represented by the general formula IV;

(4) 26-54% of the compound represented by the general formula V;

(5) 0-16% of the compound represented by the general formula VI.

Preferably, the A component includes the following components by weight:

(1) 4-28% of the compound represented by the general formula I;

(2) 27-40% of the compound represented by the general formula II;

(3) 2-12% of the compound represented by the general formula IV;

(4) 35-58% of the compound represented by the general formula V;

Or, the A component includes the following components by weight:

(1) 8-33% of the compound represented by the general formula I;

(2) 10-34.5% of the compound represented by the general formula II;

(3) 3-14% of the compound represented by the general formula IV;

(4) 26-51% of the compound represented by the general formula V;

(5) 2-21% of the compound represented by the general formula VI.

Or, the A component includes the following components by weight:

(1) 14-28% of the compound represented by the general formula I;

(2) 27-35% of the compound represented by the general formula II;

(3) 2-12% of the compound represented by the general formula IV;

(4) 35-54% of the compound represented by the general formula V;

Or, the A component includes the following components by weight:

(1) 14-33% of the compound represented by the general formula I;

(2) 20-34.5% of the compound represented by the general formula II;

(3) 3-9% of the compound represented by the general formula IV;

(4) 26-46% of the compound represented by the general formula V;

(5) 2-16% of the compound represented by the general formula VI.

Or, the A component includes the following components by weight:

(1) 14-28% of the compound represented by the general formula I;

(2) 27-34% of the compound represented by the general formula II;

(3) 4-9% of the compound represented by the general formula IV;

(4) 35-54% of the compound represented by the general formula V;

Or, the A component includes the following components by weight:

(1) 14-33% of the compound represented by the general formula I;

(2) 20-34.5% of the compound represented by the general formula II;

(3) 4-9% of the compound represented by the general formula IV;

(4) 26-46% of the compound represented by the general formula V;

(5) 2-16% of the compound represented by the general formula VI.

The preparation method of the liquid crystal composition of the present invention is not particularly limited, and can be produced by mixing two or more compounds by conventional methods, such as by mixing different components at high temperature and dissolving each other. The compound is dissolved in the solvent used for the compound and mixed, and then the solvent is distilled off under reduced pressure; or the liquid crystal composition of the present invention can be prepared according to a conventional method, such as placing the component with a smaller content in a higher It is obtained by dissolving in the main components with a large content at a high temperature, or dissolving each component in an organic solvent, such as acetone, chloroform or methanol, etc., and then mixing the solutions to remove the solvent.

The liquid crystal composition provided by the invention has a fast reaction speed, can shorten the time required for the polymerization of the polymerizable compound, greatly shorten the time required for the polymerization process of the liquid crystal display, increase the output of the liquid crystal display, shorten the exposure time of the liquid crystal display in the environment, and improve the Quality performance of LCD monitors. Therefore, the liquid crystal composition provided by the present invention is suitable for PSVA and SAVA display mode liquid crystal display devices; especially suitable for PSVA liquid crystal display devices.

The method for preparing a liquid crystal device by using the liquid crystal composition provided by the present invention is as follows: pouring the liquid crystal composition containing a polymerizable compound into a liquid crystal screen, then polymerizing by UV light irradiation, and continuously applying a voltage during the irradiation process. The polymerizable compound in the liquid crystal composition is polymerized under UV light irradiation, which promotes the formation of stable alignment of the liquid crystal.

The polymerizable monomer is usually a biphenyl or terphenyl structure, with polymerizable groups connected at both ends. It is found that the polymerizable monomer with a terphenyl structure is prone to chromatography when the liquid crystal composition flows on the surface of the alignment layer. Causes uneven distribution of polymerizable monomers, uneven arrangement of liquid crystal molecules after polymerization, resulting in uneven brightness of liquid crystal displays, so polymerizable monomers with biphenyl structure are usually used, and the absorption of light by biphenyl structure is about 310nm. , the step of polymerization to form a pre-tilt angle is usually irradiated with 365nm UV light, so the absorption of UV light by the polymerizable monomer is very limited, resulting in a slow polymerization reaction. The researchers of the present invention found that by adding the terphenyl structure represented by the general formula IV into the liquid crystal composition, since the absorption wavelength of terphenyl is around 365 nm, the UV light energy can be quickly absorbed, and then transferred to the polymerizable monomer, accelerating the Polymerizable monomer polymerization. Its energy transfer model is shown in Figure 1.

Description of drawings

Figure 1 is an energy transfer model diagram.

Detailed ways

The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

Unless otherwise specified, the percentages in the present invention are by weight; the temperature is in degrees Celsius; Δn represents optical anisotropy (25°C); Δε represents dielectric anisotropy (25°C, 1000Hz); V ₁₀ represents threshold voltage , is the characteristic voltage (V, 25°C) when the relative transmittance changes by 10%; γ1 represents the rotational viscosity (mPa.s, 25°C); Cp represents the clearing point (°C) of the liquid crystal composition; K ₁₁ , K ₂₂ and K ₃₃ represent splay, torsion and flexural elastic constants (pN, 25°C), respectively; VHR represents voltage holding ratio (%, 60°C, 1V, 0.5Hz).

In the following examples, the group structure in the liquid crystal compound is represented by the codes shown in Table 1.

Table 1: Group Structure Codes of Liquid Crystal Compounds

Take the following compound structure as an example:

Represented as: 3PWO2

Represented as: 3PGIWO2

In the following examples, the preparation of the liquid crystal composition adopts the thermal dissolution method, which includes the following steps: weighing the liquid crystal compound by weight percentage with a balance, wherein there is no specific requirement for the order of weighing and adding, usually the melting point of the liquid crystal compound is from high to low. Weighing and mixing in sequence, heating and stirring at 60-100°C to make each component melt evenly, then filtering, rotary steaming, and finally encapsulating to obtain the target sample.

The preparation method of the liquid crystal display device provided by the present invention is as follows: injecting a liquid crystal composition containing a polymerizable compound into a glass interlayer with electrodes, and irradiating a UV light of 320-400 nm under an applied voltage to promote the polymerization of the polymerizable monomer to form a After a stable pre-tilt angle, the voltage was removed, and UV light at 300-320 nm was used to promote the complete reaction of the residual polymerizable monomers.

In the following examples, the weight percentage of each component in the liquid crystal composition and the performance parameters of the liquid crystal composition are shown in the following table.

Example 1

Table 2: Weight percentage and performance parameters of each component in the liquid crystal composition

The above-mentioned nematic liquid crystal composition was added with polymerizable monomers IIIA, IIIC and IIIE as shown in Table 3, and then mixed uniformly to prepare a PSVA liquid crystal composition.

Table 3: Composition of PSVA liquid crystal composition

Nematic liquid crystal IIIA IIIC IIIE PA1 100 0.3 PC1 100 0.3 PE1 100 0.3

Fill the prepared PSVA mixture PA1, PC1, PE1 into the standard VA test box, irradiate with UV (365nm, 85mw/cm2) under the applied voltage of 20V for 40s, then remove the voltage, and use UV (313nm, 1mw/cm2) ) light irradiation for 40min, fully react the residual polymerizable monomer, and test the pretilt angle, threshold voltage, response time, residual polymerizable monomer (RM residual) and VHR respectively. The test results are shown in Table 4:

Table 4: Pretilt angle and optical test results

project titl(°) V₁₀(V) T(ms) RM residue (ppm) VHR(%) Nematic 89.5 2.714 14.0 ─ 86 PA1 86.5 2.604 9.2 40 84 PC1 84.8 2.614 9.3 30 84 PE1 85.5 2.608 9.5 35 84

Comparative Example 1

Table 5: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer of the following structure was added to the above liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition P1.

The prepared PSVA mixture P1 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, threshold voltage, response time, residual polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 6:

Table 6: Pretilt angle and optical test results

project titl(°) V₁₀(V) T(ms) RM residue (ppm) VHR(%) P1 89.2 2.678 13.4 550 70

Comparing Example 1 with Comparative Example 1, the present invention provides a composition with a faster polymerization reaction speed, which can react quickly, promote the rapid alignment of liquid crystal molecules, and quickly complete the reaction of the residual polymerizable monomers, reducing residual It can improve the voltage retention rate of the liquid crystal display, and further improve the quality performance of the afterimage of the liquid crystal display.

Example 2

Table 7: The weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIC is added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare a PSVA liquid crystal composition PC2. The prepared PSVA mixture PC2 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 20V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 8:

Table 8: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC2 84.5 40 85

Example 3

Table 9: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIB is added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PB3. The prepared PSVA mixture PB3 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 10:

Table 10: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PB3 86.8 50 84

Example 4

Table 11: The weight percentage and performance parameters of each component in the liquid crystal composition

0.2% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC4. The prepared PSVA mixture PC4 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 12:

Table 12: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC4 84.7 30 86

Example 5

Table 13: Weight percentage and performance parameters of each component in the liquid crystal composition

Add 0.5% by mass of the polymerizable monomer represented by IIIC to the above-mentioned liquid crystal composition, and then mix uniformly to prepare PSVA liquid crystal composition PC5. The prepared PSVA mixture PC5 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 20V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 14:

Table 14: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC5 84.8 60 84

Example 6

Table 15: Weight percentage and performance parameters of each component in the liquid crystal composition

0.26% by mass of the polymerizable monomer represented by IIIA was added to the above liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PA6. The prepared PSVA mixture PA6 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 20V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 16:

Table 16: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA6 86.4 20 85

Example 7

Table 17: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIE is added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare a PSVA liquid crystal composition PE7. The prepared PSVA mixture PE7 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 20V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 18:

Table 18: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PE7 85.4 36 85

Example 8

Table 19: Weight percentage and performance parameters of each component in the liquid crystal composition

0.4% by mass of the polymerizable monomer represented by IIIC was added to the above liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC8. The prepared PSVA mixture PC8 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 20:

Table 20: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC8 82.4 30 85

Example 9

Table 21: Weight percentage and performance parameters of each component in the liquid crystal composition

Add 0.3% by mass of the polymerizable monomer represented by IIIA to the above-mentioned liquid crystal composition, and then mix uniformly to prepare PSVA liquid crystal composition PA9. The prepared PSVA mixture PA9 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 60s under a voltage of 20V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 22:

Table 22: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA9 84.4 40 85

Example 10

Table 23: The weight percentage and performance parameters of each component in the liquid crystal composition

0.29% by mass of the polymerizable monomer represented by IIIE was added to the above liquid crystal composition, and then mixed uniformly to prepare a PSVA liquid crystal composition PE10. The prepared PSVA mixture PE10 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 20V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 24:

Table 24: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PE10 85.9 30 86

Example 11

Table 25: Weight percentage and performance parameters of each component in the liquid crystal composition

0.45% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC11. The prepared PSVA mixture PC11 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 15V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 26:

Table 26: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC11 87.6 60 83

Example 12

Table 27: Weight percentage and performance parameters of each component in the liquid crystal composition

0.30% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC12. The prepared PSVA mixture PC12 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 15V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 28:

Table 28: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC12 86.7 40 86

Example 13

Table 29: The weight percentage and performance parameters of each component in the liquid crystal composition

0.30% by mass of the polymerizable monomer represented by IIIE was added to the above liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PE13. The prepared PSVA mixture PE13 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 30:

Table 30: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PE13 87.2 40 85

Example 14

Table 31: The weight percentage and performance parameters of each component in the liquid crystal composition

0.30% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC14. The prepared PSVA mixture PC14 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 10V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 32:

Table 32: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC14 87.8 20 86

Example 15

Table 33: The weight percentage and performance parameters of each component in the liquid crystal composition

Add 0.3% by mass of the polymerizable monomer represented by IIIH to the above-mentioned liquid crystal composition, and then mix uniformly to prepare PSVA liquid crystal composition PD15. The prepared PSVA mixture PD15 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 10V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 34:

Table 34: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PD15 87.6 30 85

Example 16

Table 35: The weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIE is added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PE16. The prepared PSVA mixture PE16 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 36:

Table 36: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PE16 85.6 30 86

Example 17

Table 37: The weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIA was added to the above liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PA17. The prepared PSVA mixture PA17 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 38:

Table 38: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA17 86.6 50 84

Example 18

Table 39: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare a PSVA liquid crystal composition PC18. The prepared PSVA mixture PC18 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 40:

Table 40: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC18 86.0 30 86

Example 19

Table 41: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIID was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PD19. The prepared PSVA mixture PD19 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 20V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 42:

Table 42: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PD19 86.0 50 84

Example 20

Table 43: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC20. The prepared PSVA mixture PC20 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 10V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 44:

Table 44: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC20 87.5 20 86

Example 21

Table 45: The weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC21. The prepared PSVA mixture PC21 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 46:

Table 46: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC21 85.6 30 85

Example 22

Table 47: Weight percentage and performance parameters of each component in the liquid crystal composition

Add 0.3% by mass of the polymerizable monomer represented by IIIA to the above-mentioned liquid crystal composition, and then mix uniformly to prepare PSVA liquid crystal composition PA22. The prepared PSVA mixture PA22 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 15V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 48:

Table 48: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA22 85.5 30 85

Example 23

Table 49: The weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC23. The prepared PSVA mixture PC23 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 15V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 50:

Table 50: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC23 85.8 30 85

Example 24

Table 51: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIE is added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PE24. The prepared PSVA mixture PE24 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 52:

Table 52: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PE24 85.5 30 85

Example 25

Table 53: Weight percentage and performance parameters of each component in the liquid crystal composition

Add 0.3% by mass of the polymerizable monomer represented by IIIA to the above-mentioned liquid crystal composition, and then mix uniformly to prepare PSVA liquid crystal composition PA25. The prepared PSVA mixture PA25 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 54:

Table 54: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA25 85.5 35 84

Example 26

Table 55: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC26. The prepared PSVA mixture PC26 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) for 40s under a voltage of 20V, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 56:

Table 56: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC26 84.5 40 85

Example 27

Table 57: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIB was added to the above liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PB27. The prepared PSVA mixture PB27 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 58:

Table 58: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PB27 86.8 60 83

Example 28

Table 59: Weight percentage and performance parameters of each component in the liquid crystal composition

0.2% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC28. The prepared PSVA mixture PC28 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 60:

Table 60: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC28 84.7 10 86

Example 29

Table 61: The weight percentage and performance parameters of each component in the liquid crystal composition

0.5% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC29. The prepared PSVA mixture PC29 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, then the voltage was removed, and UV (313nm, 1mw/cm2) light was irradiated for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 62:

Table 62: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC29 84.8 60 84

Example 30

Table 63: Weight percentage and performance parameters of each component in the liquid crystal composition

0.26% by mass of the polymerizable monomer represented by IIIA was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PA30. The prepared PSVA mixture PA30 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 64:

Table 64: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA30 86.4 20 85

Example 31

Table 65: Weight percentage and performance parameters of each component in the liquid crystal composition

Add 0.4% by mass of the polymerizable monomer represented by IIIA to the above-mentioned liquid crystal composition, and then mix uniformly to prepare PSVA liquid crystal composition PA31. The prepared PSVA mixture PA31 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 66:

Table 66: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA31 84.4 30 85

Example 32

Table 67: Weight percentage and performance parameters of each component in the liquid crystal composition

0.29% by mass of the polymerizable monomer represented by IIIE is added to the above liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PE32. The prepared PSVA mixture PE32 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 68:

Table 68: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PE32 85.9 30 86

Example 33

Table 69: The weight percentage and performance parameters of each component in the liquid crystal composition

0.45% by mass of the polymerizable monomer represented by IIID is added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PD33. The prepared PSVA mixture PD33 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 70:

Table 70: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PD33 84.6 60 83

Example 34

Table 71: The weight percentage and performance parameters of each component in the liquid crystal composition

0.30% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare a PSVA liquid crystal composition PC34. The prepared PSVA mixture PC34 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and UV (313nm, 1mw/cm2) light was irradiated for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 72:

Table 72: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC34 86.7 30 86

Example 35

Table 73: Weight percentage and performance parameters of each component in the liquid crystal composition

Add 0.30% by mass of the polymerizable monomer represented by IIIA to the above-mentioned liquid crystal composition, and then mix uniformly to prepare PSVA liquid crystal composition PA35. Fill the prepared PSVA mixture PA35 into a standard VA test box, irradiate with UV (365nm, 85mw/cm2) for 40s under a voltage of 10V, then remove the voltage, and irradiate with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 74:

Table 74: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA35 86.8 20 86

Example 36

Table 75: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIA was added to the above liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PA36. The prepared PSVA mixture PA36 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 10V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 76:

Table 76: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA36 86.0 10 86

Example 37

Table 77: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare a PSVA liquid crystal composition PC37. The prepared PSVA mixture PC37 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 78:

Table 78: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC37 85.0 30 86

Example 38

Table 79: The weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIA is added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PA38. The prepared PSVA mixture PA38 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 80:

Table 80: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PA38 86.6 50 84

Example 39

Table 81: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PC39. The prepared PSVA mixture PC39 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, and then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 82:

Table 82: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC39 86.0 30 86

Example 40

Table 83: Weight percentage and performance parameters of each component in the liquid crystal composition

Add 0.3% by mass of the polymerizable monomer represented by IIID to the above-mentioned liquid crystal composition, and then mix uniformly to prepare PSVA liquid crystal composition PD40. The prepared PSVA mixture PD40 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 20V for 40s, then the voltage was removed, and UV (313nm, 1mw/cm2) light was irradiated for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 84:

Table 84: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PD40 86.0 50 84

Example 41

Table 85: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIE is added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare PSVA liquid crystal composition PE41. The prepared PSVA mixture PE41 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 10V for 40s, then the voltage was removed, and UV (313nm, 1mw/cm2) light was irradiated for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 86:

Table 86: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PE41 86.5 20 86

Example 42

Table 87: Weight percentage and performance parameters of each component in the liquid crystal composition

0.3% by mass of the polymerizable monomer represented by IIIC was added to the above-mentioned liquid crystal composition, and then mixed uniformly to prepare a PSVA liquid crystal composition PC42. The prepared PSVA mixture PC42 was filled into a standard VA test box, irradiated with UV (365nm, 85mw/cm2) under a voltage of 15V for 40s, then the voltage was removed, and then irradiated with UV (313nm, 1mw/cm2) light for 40min , fully react the residual polymerizable monomer, and test the pretilt angle, the residual amount of polymerizable monomer (RM residual) and VHR, respectively. The test results are shown in Table 88:

Table 88: Pretilt angle and optical test results

project titl(°) RM residue (ppm) VHR(%) PC42 85.6 30 85

It can be seen from the above examples that the liquid crystal composition provided by the present invention has a fast reaction speed, which can shorten the time required for the polymerization of the polymerizable compound, greatly shorten the time required for the polymerization process of the liquid crystal display, improve the output of the liquid crystal display, and shorten the time required for the liquid crystal display. The exposure time in the environment improves the quality and performance of the LCD display. Therefore, the liquid crystal composition provided by the present invention is suitable for PSVA and SAVA display mode liquid crystal display devices; especially suitable for PSVA liquid crystal display devices.

Although the present invention has been described in detail above with general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention fall within the scope of the claimed protection of the present invention.

Claims (10)

1. A liquid crystal composition is characterized in that, comprises A component and B component; Wherein, described component A contains at least one liquid crystal compound represented by general formula I, at least one liquid crystal compound represented by general formula II The representative liquid crystal compound contains at least one compound represented by the general formula IV and at least one or more compounds represented by the general formula V: The B component is a polymerizable monomer represented by the general formula III: R ₁ , R ₂ , R ₃ and R ₄ independently represent a C ₁ -C ₁₂ straight-chain alkyl group, a straight-chain alkoxy group or a C ₂ -C ₁₂ straight-chain alkenyl group; R ₅ each independently represents a C ₁ -C ₁₂ straight-chain alkyl group; R ₆ each independently represents F, a C ₁ -C ₁₂ straight-chain alkyl group or a straight-chain alkoxy group; R ₇ and R ₈ each independently represent a C ₁ -C ₁₂ straight-chain alkyl group, a straight-chain alkoxy group or a C ₂ -C ₁₂ straight-chain alkenyl group; A ₁ and A ₂ each independently represent trans-1,4-cyclohexyl, 1,4-cyclohexene or 1,4-phenylene; A ₃ and A ₄ independently represent trans-1,4-cyclohexyl or 1,4-phenylene; L ₁ each independently represents H, CH ₃ or OCH ₃ ; L ₂ each independently represents H or F; L ₃ , L ₄ , L ₅ , and L ₆ each independently represent H or F. 2. liquid crystal composition according to claim 1 is characterized in that, the compound represented by general formula I is selected from one or more in IA or IB: R ₁ each independently represents a C ₁ -C ₇ straight-chain alkyl group or a C ₂ -C ₇ straight-chain alkenyl group; R ₂ each independently represents a C ₁ -C ₇ straight-chain alkyl group or an alkoxy group; Preferably, the compound represented by general formula I is selected from one or more of formula IA1 to formula IB16: More preferably, the compound represented by general formula I is selected from one or more of IA6, IA8, IA14, IB6, IB7 and IB8; particularly preferably one or more of IA6, IA8, IA14 and IB6. 3. The liquid crystal composition according to claim 1, wherein the compound represented by the general formula II is selected from one or more of the formula IIA to the formula IIC: wherein, R ₃ and R ₄ each independently represent a C ₁ -C ₇ straight-chain alkyl group, a straight-chain alkoxy group or a C ₂ -C ₇ straight-chain alkenyl group; Preferably, the compound represented by general formula II is selected from one or more of formula IIA1 to formula IIC24: More preferably, the compound represented by general formula II is selected from formula IIA1, IIA2, IIA9, IIA10, IIA11, IIA13, IIA14, IIA15, IIA16, IIA18, IIB6, IIB7, IIB10, IIC1, IIC2, IIC13, IIC14, IIC18, One or more of IIC22; further preferably, the compound represented by general formula II is selected from one or more of formula IIA10, IIA13, IIA14, IIA15, IIA16, IIA18, IIB6, IIB10, IIC13, IIC14, IIC22 ; Particularly preferably, the compound represented by the general formula II is selected from one or more of formulae IIA10, IIA13, IIA14, IIA15, IIA18, IIB6, IIC13, and IIC14. 4. The liquid crystal composition according to claim 1, wherein the compound represented by the general formula IV is selected from one or more of IVA～IVE: Wherein, R ₅ each independently represents a C ₁ -C ₇ straight-chain alkyl group; R ₆ each independently represents a C ₁ -C ₇ straight-chain alkyl group or a straight-chain alkoxy group; Preferably, the compound represented by the general formula IV is selected from one or more of IVA1～IVE24: More preferably, the compound represented by general formula IV is selected from one or more of IVA2, IVA3, IVA4, IVB3, IVB4, IVC2, IVD1, IVD2, IVE2, IVE14, IVE21, IVE22; particularly preferred IVA2, IVB2, One or more of IVC2, IVE14, and IVE21. 5. The liquid crystal composition according to claim 1, wherein the compound represented by the general formula V is selected from one or more of the formulas VA to VC: Wherein, R ₇ each independently represents a C ₁ -C ₈ straight-chain alkyl group; R ₈ each independently represents a C ₁ -C ₇ straight-chain alkyl group, a straight-chain alkoxy group or a C ₂ -C ₇ straight-chain alkyl group alkenyl; Preferably, the compound represented by the general formula V is selected from one or more of the formulas VA1 to VC38: Preferably, the compound represented by general formula V is selected from the group consisting of formula VA4, VA6, VA10, VA11, VA24, VA28, VB14, VB18, VB22, VC2, VC4, VC6, VC22, VC24, VC26, VC28, VC29, VC34 One or more, more preferably, the compound represented by general formula V is selected from one or more of formula VA6, VA10, VA11, VA28, VB18, VB22, VC2, VC4, VC6, VC22, VC26, VC34 ; Particularly preferably, the compound represented by general formula V is selected from one or more of formulae VA6, VA10, VA11, VB18, VA28, VB22, VC6, VC22, and VC34. 6. The liquid crystal composition according to claim 1, wherein the compound represented by the general formula III is selected from one or more of IIIA-IIIE: Preferably, the compound represented by the general formula III is selected from one or more of IIIA, IIIC, and IIIE. 7. The liquid crystal composition according to any one of claims 1-6, wherein the liquid crystal composition further comprises one or more compounds selected from the structure of general formula VI: R ₉ and R ₁₀ each independently represent a C ₁ -C ₁₂ straight-chain alkyl group; A ₅ each independently represents trans-1,4-cyclohexyl or 1,4-phenylene; The compound represented by general formula VI is preferably one or more of formula VIA and formula VIB: wherein, R ₉ and R ₁₀ each independently represent a C ₁ -C ₇ straight-chain alkyl group; Further preferably, the compound represented by general formula VI is selected from one or more of formula VIA1 to formula VIB12: More preferably, the compound represented by general formula VI is selected from one or more of formula VIA2, VIA6, VIA10, VIB2, VIB6, VIB8, further preferably, the compound represented by general formula VI is selected from formula VIA2, VIA6 , one or more of VIB2 and VIB6; particularly preferably, the compound represented by the general formula VI is selected from one or both of formulae, VIA2, VIB2 and VIB6. 8. The liquid crystal composition according to any one of claims 1-7, wherein the amount of the B component is 0.1-5% of the total weight of the A component in the liquid crystal composition, and the preferred amount is 0.2- 0.5%; of which, The A component includes the following components by weight: (1) 1-45% of the compound represented by the general formula I; (2) 3-55% of the compound represented by the general formula II; (3) 1-25% of the compound represented by the general formula IV; (4) 10-70% of the compound represented by the general formula V; (5) 0～35% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 3-38% of the compound represented by the general formula I; (2) 5-45% of the compound represented by the general formula II; (3) 1-18% of the compound represented by the general formula IV; (4) 20-65% of the compound represented by the general formula V; (5) 0～25% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 4-33% of the compound represented by the general formula I; (2) 10-40% of the compound represented by the general formula II; (3) 2-14% of the compound represented by the general formula IV; (4) 26-58% of the compound represented by the general formula V; (5) 0～21% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 18-38% of the compound represented by the general formula I; (2) 8-39% of the compound represented by the general formula II; (3) 2-18% of the compound represented by the general formula IV; (4) 20-50% of the compound represented by the general formula V; (5) 0～25% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 18-33% of the compound represented by the general formula I; (2) 10-34% of the compound represented by the general formula II; (3) 3-14% of the compound represented by the general formula IV; (4) 26-46% of the compound represented by the general formula V; (5) 0～21% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 3-22% of the compound represented by the general formula I; (2) 22-45% of the compound represented by the general formula II; (3) 1-15% of the compound represented by the general formula IV; (4) 30-53% of the compound represented by the general formula V; (5) 0～15% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 4-22% of the compound represented by the general formula I; (2) 27-40% of the compound represented by the general formula II; (3) 2-10% of the compound represented by the general formula IV; (4) 35-48% of the compound represented by the general formula V; (5) 0～12% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 3-33% of the compound represented by the general formula I; (2) 25-45% of the compound represented by the general formula II; (3) 1-15% of the compound represented by the general formula IV; (4) 26-62% of the compound represented by the general formula V; (5) 0～15% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 4-28% of the compound represented by the general formula I; (2) 25-40% of the compound represented by the general formula II; (3) 2-12% of the compound represented by the general formula IV; (4) 31-58% of the compound represented by the general formula V; (5) 0～12% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 6-37% of the compound represented by the general formula I; (2) 8-36% of the compound represented by the general formula II; (3) 2-18% of the compound represented by the general formula IV; (4) 20-58% of the compound represented by the general formula V; (5) 0～25% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 8-33% of the compound represented by the general formula I; (2) 10-32% of the compound represented by the general formula II; (3) 3-14% of the compound represented by the general formula IV; (4) 26-54% of the compound represented by the general formula V; (5) 0～21% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 4-33% of the compound represented by the general formula I; (2) 10-40% of the compound represented by the general formula II; (3) 4-11% of the compound represented by the general formula IV; (4) 26-58% of the compound represented by the general formula V; (5) 0～21% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 4-33% of the compound represented by the general formula I; (2) 15-40% of the compound represented by the general formula II; (3) 4-7% of the compound represented by the general formula IV; (4) 26-58% of the compound represented by the general formula V; (5) 0～21% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 3-33% of the compound represented by the general formula I; (2) 8-45% of the compound represented by the general formula II; (3) 1-18% of the compound represented by the general formula IV; (4) 35-63% of the compound represented by the general formula V; (5) 0～25% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 4-28% of the compound represented by the general formula I; (2) 10-40% of the compound represented by the general formula II; (3) 2-14% of the compound represented by the general formula IV; (4) 35-58% of the compound represented by the general formula V; (5) 0～21% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 10-36% of the compound represented by the general formula I; (2) 8-38% of the compound represented by the general formula II; (3) 2-18% of the compound represented by the general formula IV; (4) 20-41% of the compound represented by the general formula V; (5) 0～25% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 14-33% of the compound represented by the general formula I; (2) 10-35% of the compound represented by the general formula II; (3) 3-14% of the compound represented by the general formula IV; (4) 26-41% of the compound represented by the general formula V; (5) 0～21% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 5-38% of the compound represented by the general formula I; (2) 8-40% of the compound represented by the general formula II; (3) 2-18% of the compound represented by the general formula IV; (4) 20-55% of the compound represented by the general formula V; (5) 1-25% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 8-33% of the compound represented by the general formula I; (2) 10-35% of the compound represented by the general formula II; (3) 3-14% of the compound represented by the general formula IV; (4) 26-51% of the compound represented by the general formula V; (5) 2～21% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 3-33% of the compound represented by the general formula I; (2) 22-45% of the compound represented by the general formula II; (3) 1-15% of the compound represented by the general formula IV; (4) 30-63% of the compound represented by the general formula V; More preferably, the A component includes the following components by weight: (1) 4-28% of the compound represented by the general formula I; (2) 27-40% of the compound represented by the general formula II; (3) 2-12% of the compound represented by the general formula IV; (4) 35-58% of the compound represented by the general formula V; Preferably, the A component includes the following components by weight: (1) 14-33% of the compound represented by the general formula I; (2) 20-35% of the compound represented by the general formula II; (3) 2-12% of the compound represented by the general formula IV; (4) 26-54% of the compound represented by the general formula V; (5) 0～16% of the compound represented by the general formula VI; More preferably, the A component includes the following components by weight: (1) 14-33% of the compound represented by the general formula I; (2) 20-35% of the compound represented by the general formula II; (3) 4-9% of the compound represented by the general formula IV; (4) 26-54% of the compound represented by the general formula V; (5) 0～16% of the compound represented by the general formula VI; Preferably, the A component includes the following components by weight: (1) 4-28% of the compound represented by the general formula I; (2) 27-40% of the compound represented by the general formula II; (3) 2-12% of the compound represented by the general formula IV; (4) 35-58% of the compound represented by the general formula V; Or, the A component includes the following components by weight: (1) 8-33% of the compound represented by the general formula I; (2) 10-34.5% of the compound represented by the general formula II; (3) 3-14% of the compound represented by the general formula IV; (4) 26-51% of the compound represented by the general formula V; (5) 2～21% of the compound represented by the general formula VI; Or, the A component includes the following components by weight: (1) 14-28% of the compound represented by the general formula I; (2) 27-35% of the compound represented by the general formula II; (3) 2-12% of the compound represented by the general formula IV; (4) 35-54% of the compound represented by the general formula V; Or, the A component includes the following components by weight: (1) 14-33% of the compound represented by the general formula I; (2) 20-34.5% of the compound represented by the general formula II; (3) 3-9% of the compound represented by the general formula IV; (4) 26-46% of the compound represented by the general formula V; (5) 2-16% of the compound represented by the general formula VI; Or, the A component includes the following components by weight: (1) 14-28% of the compound represented by the general formula I; (2) 27-34% of the compound represented by the general formula II; (3) 4-9% of the compound represented by the general formula IV; (4) 35-54% of the compound represented by the general formula V; Or, the A component includes the following components by weight: (1) 14-33% of the compound represented by the general formula I; (2) 20-34.5% of the compound represented by the general formula II; (3) 4-9% of the compound represented by the general formula IV; (4) 26-46% of the compound represented by the general formula V; (5) 2-16% of the compound represented by the general formula VI. 9. The application of the liquid crystal composition according to any one of claims 1 to 8 in the preparation of liquid crystal display devices, preferably in the preparation of PSVA or SAVA mode liquid crystal display devices; Further preferably, the application is specifically: pouring a liquid crystal composition containing a polymerizable compound into a liquid crystal screen, then irradiating with UV light for polymerization, and continuously applying a voltage during the irradiation process. 10 . A liquid crystal display device, characterized in that, it is prepared by using the liquid crystal composition according to any one of claims 1 to 8 as a raw material.