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A liquid crystal composition comprising a polymerizable compound and its application

A technology of liquid crystal composition and polymer compound, which is applied in the direction of liquid crystal materials, organic chemistry, chemical instruments and methods, etc., and can solve problems such as image stickiness, affecting display properties, and image burnt

Active Publication Date: 2021-08-20
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Another problem in the process of producing PSA displays is the presence of residual amounts of unpolymerized RM. Such unreacted RM may polymerize in an uncontrollable manner after the display is made and negatively affect the properties of the display, such as the known PSA displays often exhibit "image sticking" or "image burn-in", ie images produced by brief addressing of individual pixels after the electric field in those pixels has been switched off or after other pixels have been addressed is still visible

Method used

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  • A liquid crystal composition comprising a polymerizable compound and its application
  • A liquid crystal composition comprising a polymerizable compound and its application
  • A liquid crystal composition comprising a polymerizable compound and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0180] The liquid crystal composition of Example 1 was prepared by each compound listed in Table 3 and the weight percentage, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0181] Table 3 liquid crystal composition formula and test performance thereof

[0182]

[0183]

[0184] Add 0.5% V(1)EPPE(1)V to the above formula, and test the pre-tilt angle after mixing, the size is: 81.5°.

Embodiment 2

[0191] The liquid crystal composition of Example 2 was prepared by each compound listed in Table 5 and the weight percentage, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0192] Table 5 liquid crystal composition formula and test performance thereof

[0193]

[0194] Add 0.2% V(1)EPGE(1)V and 0.2% V(1)EPPE(1)V to the above formula, test the pre-tilt angle after mixing, the size is: 83.1°.

Embodiment 3

[0202] The liquid crystal composition of Example 3 was formulated according to the compounds and weight percentages listed in Table 7, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0203] Table 7 liquid crystal composition formula and test performance thereof

[0204]

[0205] Add 0.3% V(1)E3PGPE(1)V to the above formula, and test the pre-tilt angle after mixing, the size is: 83.4°.

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Abstract

The invention discloses a liquid crystal composition comprising a polymerizable compound, comprising a polymerizable component A and a liquid crystal component B, the polymerizable component A comprising one or more polymerizable compounds; the liquid crystal component B comprising at least A compound of general formula I. The invention also discloses a liquid crystal display device comprising the liquid crystal composition of the invention. The liquid crystal composition provided by the present invention has greater optical anisotropy and greater dielectric anisotropy, and can form a lower pretilt angle after adding RM,

Description

technical field [0001] The invention belongs to the field of liquid crystal materials, and in particular relates to a liquid crystal composition containing a polymerizable compound and its application in PSA displays. Background technique [0002] Liquid Crystal Display (LCD) has been developed rapidly due to its small size, light weight, low power consumption and excellent display quality, and is especially widely used in portable electronic information products. According to the type of display mode, it is divided into PC (phase change, phase change), TN (twist nematic, twisted nematic), STN (supertwisted nematic, super twisted nematic), ECB (electrically controlled birefringence, electrically controlled birefringence), OCB (optically compensated bend), IPS (in-plane switching, coplanar transformation), FFS (fringe field switching, edge field switching), VA (vertical alignment, vertical alignment) and PSA (polymer stable alignment, polymer Stable alignment) and other type...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44C07C43/225G02F1/1333
CPCC09K19/44G02F1/1333
Inventor 马文阳徐海彬韩文明陈昭远
Owner JIANGSU HECHENG DISPLAY TECHCO
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