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Liquid crystal composition having negative dielectric anisotropy, and applications thereof

A technology of liquid crystal composition and compound, applied in liquid crystal materials, nonlinear optics, optics, etc., can solve the problem of narrow viewing angle of display mode and so on

Active Publication Date: 2017-05-10
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It is known that among the above operation modes, the ECB mode, IPS mode, and VA mode use the vertical alignment of liquid crystal molecules, especially the IPS mode and VA mode can improve the shortcomings of TN mode, STN mode and other display modes with narrow viewing angles.

Method used

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  • Liquid crystal composition having negative dielectric anisotropy, and applications thereof
  • Liquid crystal composition having negative dielectric anisotropy, and applications thereof
  • Liquid crystal composition having negative dielectric anisotropy, and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] Table 3 lists the components of the liquid crystal composition of Example 1 and the weight percentage of each component. The liquid crystal composition is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0127] The formula of table 3 liquid crystal composition and test performance thereof

[0128]

Embodiment 2

[0130] Table 4 lists the components of the liquid crystal composition of Comparative Example 2 and the weight percentages of each component. The liquid crystal composition is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0131] The formula of table 4 liquid crystal composition and test performance thereof

[0132]

Embodiment 3

[0134] Table 5 lists the components of the liquid crystal composition of Example 2 and the weight percentages of each component. The liquid crystal composition is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0135] The formula of table 5 liquid crystal composition and test performance thereof

[0136]

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PUM

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Abstract

The present invention provides a liquid crystal composition, which contains at least a group comprising a compound represented by a general formula I, and at least a group comprising a compound represented by a general formula III, wherein the liquid crystal composition has characteristics of suitable optical anisotropy, high dielectric anisotropy, good ultraviolet ray stability, and the like. The present invention further provides a liquid crystal display element containing the liquid crystal composition, wherein the liquid crystal display element has characteristics of low driving voltage, short response time, rapid crystal filling, high voltage retention rate, high contrast degree, low electricity consumption, long service life, high ultraviolet ray stability, and the like.

Description

technical field [0001] The invention relates to a liquid crystal composition, in particular to a liquid crystal composition with low refractive index, high dielectric anisotropy and good ultraviolet stability and its application in liquid crystal displays. 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 (super twisted nematic, super twisted nematic), ECB (electrically controlled birefringence, electrical controlled birefringence), OCB (optical compensated bend), IPS (in-plane switching, in-plane transition), VA (vertical alignment, vertical alignment) and other types. Liquid crystal display elements are classified into reflective type using natural light, transmissive type using backlight, and transflective type using both natural light and backlight according to the type of light source. [0003] It is known that am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44C09K19/12C09K19/30G02F1/1333
Inventor 韩文明王盼盼徐海彬马文阳
Owner JIANGSU HECHENG DISPLAY TECHCO
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