A kind of liquid crystal composition and its application

A technology of liquid crystal compositions and compounds, applied in the directions of liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problem of not mentioning in detail the effect of improving the transmittance of IPS liquid crystal display, achieve low rotational viscosity, improve penetration rate, the effect of increasing the contrast

Active Publication Date: 2021-11-02
JIANGSU HECHENG DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The patent CN101270287A applied by Samsung Electronics on February 20, 2008 once disclosed a solution for mixing positive and negative liquid crystals, but it only mentioned adding positive components to negative liquid crystals, and the overall liquid crystal is still negative
Chisso Co., Ltd. also disclosed an experimental scheme for mixing positive and negative liquid crystals in the patent application JP2002156619A on November 21, 2000. The above two schemes did not mention in detail that positive liquid crystals are doped with a small amount of negative liquid crystal single Body to improve the transmittance of IPS liquid crystal display

Method used

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  • A kind of liquid crystal composition and its application
  • A kind of liquid crystal composition and its application
  • A kind of liquid crystal composition and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146] 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:

[0147] Table 3 liquid crystal composition formula and test performance thereof

[0148]

Embodiment 2

[0150] The liquid crystal composition of Example 2 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 table below:

[0151] Table 4 liquid crystal composition formula and test performance thereof

[0152]

Embodiment 3

[0154] The liquid crystal composition of Example 3 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:

[0155] Table 5 liquid crystal composition formula and test performance thereof

[0156]

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PUM

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Abstract

The invention discloses a liquid crystal composition, which comprises at least one compound of general formula I and at least one compound of general formula II. 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 large vertical dielectric ratio dielectric, low rotational viscosity, suitable temperature range of nematic phase, optical anisotropy and elastic constant K 11 and K 33 , especially suitable for IPS liquid crystal display, which can improve the transmittance of the display, reduce the response time and increase the contrast.

Description

technical field [0001] The invention belongs to the field of liquid crystal materials, and in particular relates to a liquid crystal composition that can satisfy a large vertical dielectric ratio dielectric, and has high transmittance and rapid response, and the application of the liquid crystal composition in a liquid crystal display element application. 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. With the increasing size of liquid crystal screens used in portable computers, office applications, and video applications, in order to enable liquid crystal displays to be used for large-screen display and eventually replace cathode ray tube displays (Cathode Ray Tube, CRT). [0003] According to the type of display mode, it is divided into PC (phase change, phase change), TN...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44G02F1/1333
CPCC09K19/44G02F1/1333
Inventor 徐海彬周振婷孙艳雪韩文明陈昭远
Owner JIANGSU HECHENG DISPLAY TECH CO LTD
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