Liquid crystal composition and display device thereof

A technology for liquid crystal compositions and compounds, applied in liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problems of high operating voltage, long response time, low resistivity, etc.

Active Publication Date: 2017-07-21
JIANGSU HECHENG DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since liquid crystals are usually used as a mixture of various components, the mutual solubility between the components is particularly important, and according to different battery types and application fields, liquid crystals must meet different requirements, such as conductivity, dielectric properties, etc. Anisotropy and optical anisotropy, etc., but the obvious disadvantages in the prior art are longer response time, lower resistivity and too high operating voltage, such as EP0673986, DE19528106, DE19528107

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] 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:

[0064] Table 4 liquid crystal composition formula and test performance thereof

[0065]

Embodiment 2

[0067] 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:

[0068] Table 5 liquid crystal composition formula and test performance thereof

[0069]

[0070]

Embodiment 3

[0072] 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:

[0073] Table 6 liquid crystal composition formula and test performance thereof

[0074]

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Abstract

The invention provides a liquid crystal composition, which comprises at least a compound in a general formula I; at least a compound in a general formula II; and at least a compound selected from a general formula III-1, a general formula III-2, a general formula III-3, a general formula III-4 and its combination. The liquid crystal composition has characteristics of appropriate optical anisotropy, appropriate dielectric anisotropy and fast response speed. The invention also provides a liquid crystal display containing the liquid crystal composition.

Description

technical field [0001] The invention relates to a liquid crystal composition, in particular to a liquid crystal composition with suitable optical anisotropy, suitable dielectric anisotropy and fast response speed, and a liquid crystal display device comprising the liquid crystal composition. Background technique [0002] Liquid crystal material is a mixture of organic rod-shaped small molecular compounds that have both fluidity of liquid and anisotropy of crystal at a certain temperature. Liquid crystal materials are mainly used as dielectrics in displays because the optical properties of such substances can be changed by an applied voltage. Electro-optical devices based on liquid crystals are well known to those skilled in the art, such devices are cells with dynamic scattering, DAP (deformation in aligned phase) cells, guest / host cells, TN cells with twisted nematic structure, STN (Super Twisted Nematic) battery, SBE (Super Birefringence Effect) battery and OMI (Optical M...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44C09K19/34C09K19/30C09K19/12G02F1/1333
Inventor 韩文明胡娟刘洋严加浩宋晓龙谭玉东
Owner JIANGSU HECHENG DISPLAY TECH CO LTD
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