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Liquid crystal composition and liquid crystal display device

A technology of liquid crystal compositions and compounds, applied in the directions of liquid crystal materials, instruments, chemical instruments and methods, etc.

Pending Publication Date: 2019-04-05
JIANGSU HECHENG DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the preparation of liquid crystal materials with suitable properties in all aspects often requires creative labor.

Method used

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  • Liquid crystal composition and liquid crystal display device
  • Liquid crystal composition and liquid crystal display device
  • Liquid crystal composition and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0178] The liquid crystal composition of Example 1 was formulated according to the compounds and weight percentages listed in Table 4, and it was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0179] Table 4 liquid crystal composition formula and test performance thereof

[0180]

[0181]

Embodiment 2

[0183] 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:

[0184] Table 5 liquid crystal composition formula and test performance thereof

[0185]

Embodiment 3

[0187] The liquid crystal composition of Example 3 was prepared by each compound listed in Table 6 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:

[0188] Table 6 liquid crystal composition formula and test performance thereof

[0189]

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PUM

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Abstract

The invention provides a liquid crystal composition. The liquid crystal composition contains at least one compound of a formula I, at least one compound of a formula II, and at least one compound of aformula III. The liquid crystal composition has high optical anisotropy and also has relatively large elastic constants K11 and K33 while maintaining a high clearing point, appropriate dielectric anisotropy, and good low-temperature mutual solubility. The invention also provides a liquid crystal display device containing the liquid crystal composition; and the display device has the advantages offast response, high contrast, large temperature width range, and the like, thereby having a good display effect and a wide application range.

Description

technical field [0001] The invention relates to the field of liquid crystal display materials, in particular to a liquid crystal composition and a liquid crystal display device thereof. Background technique [0002] In liquid crystal display elements, the classification based on the operation mode of liquid crystal molecules is: phase change (phase change, PC), twisted nematic (twisted nematic, TN), super twisted nematic (super twisted nematic, STN), electrically controlled birefringence (electrically controlled birefringence, ECB), optically compensated bend (optically compensated bend, OCB), in-plane switching (IPS), vertical alignment (vertical alignment, VA), fringe field switching (fringe field switching, FFS), electric field Field-induced photo-reactive alignment (FPA) and other modes. The classification of component-based driving methods is: passive matrix (passive matrix, PM) and active matrix (active matrix, AM). PM is classified into static type (static), multipl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44G02F1/1333
CPCG02F1/1333C09K19/44C09K2019/123C09K2019/122C09K2019/3009C09K2019/301C09K19/3066C09K2019/3037C09K2019/3016C09K19/14C09K19/3003C09K2019/3021C09K2019/3078C09K2019/3027C09K2019/3004C09K2019/3013
Inventor 王莉徐海彬李鹏飞贺笛金睿
Owner JIANGSU HECHENG DISPLAY TECH CO LTD
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