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Liquid crystal composition and liquid-crystal display device thereof

A liquid crystal composition and compound technology, which is applied in the direction of liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problems of insufficient product response, insufficient optical anisotropy, and little help

Active Publication Date: 2016-05-18
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the dielectric anisotropy and optical anisotropy of this type of compound are not large enough, and it is not helpful to mix into a composition with large Δn and Δε, which is not conducive to being used in products with small box thickness, which directly leads to the product not responding fast enough

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0167] The liquid crystal composition of Example 1 was formulated according to the compounds and weight percentages listed in Table 6, 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:

[0168] Table 6 liquid crystal composition formula and test performance thereof

[0169]

Embodiment 2

[0171] The liquid crystal composition of Example 2 was formulated according to the compounds and weight percentages listed in Table 7, 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:

[0172] Table 7 liquid crystal composition formula and test performance thereof

[0173]

Embodiment 3

[0175] The liquid crystal composition of Example 3 was prepared according to the compounds and weight percentages listed in Table 8, and it was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the table below:

[0176] Table 8 liquid crystal composition formula and test performance thereof

[0177]

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PUM

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Abstract

The invention provides a liquid crystal composition and its liquid-crystal display device. The liquid crystal composition comprises at least one compound as shown in the general formula I-1 and / or I-2; at least one compound as shown in the general formula II; at least one compound as shown in the general formula III; at least one compound as shown in the general formula IV; and at least one compound as shown in the general formula V. The liquid crystal composition has characteristics of wide nematic-phase temperature range, high dielectric anisotropy, high optical anisotropy, high clearing point, low viscosity, low threshold voltage and the like. The liquid crystal composition is suitable for a liquid-crystal display element. By the use of the liquid crystal composition, the liquid-crystal display element has characteristics of low threshold voltage, fast response speed, excellent power-saving property and the like.

Description

technical field [0001] The invention relates to a liquid crystal composition and a liquid crystal display device thereof, in particular to a liquid crystal composition with relatively large dielectric anisotropy, high clearing point, low viscosity, low threshold voltage and appropriate optical anisotropy and A liquid crystal display device comprising the liquid crystal composition. Background technique [0002] For liquid crystal display elements, according to the display mode of liquid crystal, it is divided into PC (phase change, phase change), TN (twistnematic, 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), VA (vertical alignment, vertical alignment) and other types. According to the driving mode of the component, it is divided into PM (passive matrix, passive matrix) type and AM (a...

Claims

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Application Information

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IPC IPC(8): C09K19/44G02F1/1333
Inventor 戴慧娟韩文明丁文全李鹏飞徐海彬贺笛刘云云姚利芳马文阳马定福张鹤鸣施红萍
Owner JIANGSU HECHENG DISPLAY TECHCO
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