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A liquid crystal composition containing 1-oxo-bicyclyl-[2.2.2]octane compound and its application

A liquid crystal composition, bicyclic base technology, applied in liquid crystal materials, chemical instruments and methods, instruments, etc., can solve the problems of insufficient voltage, insufficient TFT-LCD response, insufficient charge retention, etc. Effects of anisotropy coefficient, strong chemical stability, and high charge retention

Active Publication Date: 2020-04-07
YANTAI XIANHUA CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of the liquid crystal material itself, TFT-LCD still has many defects such as insufficient fast response, insufficient voltage, and insufficient charge retention rate.

Method used

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  • A liquid crystal composition containing 1-oxo-bicyclyl-[2.2.2]octane compound and its application
  • A liquid crystal composition containing 1-oxo-bicyclyl-[2.2.2]octane compound and its application
  • A liquid crystal composition containing 1-oxo-bicyclyl-[2.2.2]octane compound and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The formula of liquid crystal composition is as follows:

[0059]

[0060]

[0061] The performance parameter test results of the above-mentioned liquid crystal composition are as follows:

[0062] S-N(°C) Cp(°C) △n △ε γ1(mpa.s) ≤-40 92 0.096 8.2 85.6

Embodiment 2

[0064] The formula of liquid crystal composition is as follows:

[0065]

[0066]

[0067] The performance parameter test results of the above-mentioned liquid crystal composition are as follows:

[0068] S-N(°C) Cp(°C) △n △ε γ1(mpa.s) ≤-30 105 0.101 9.0 88.5

Embodiment 3

[0070] The formula of liquid crystal composition is as follows:

[0071]

[0072]

[0073] The performance parameter test results of the above-mentioned liquid crystal composition are as follows:

[0074] S-N(°C) Cp(°C) △n △ε γ1(mpa.s) ≤-40 98 0.105 10.5 82

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Abstract

The present invention relates to a kind of liquid crystal composition containing 1-oxo-bicyclyl-[2.2.2] octane compound and application thereof, including the compound shown in general formula I: the liquid crystal composition of the present invention has relatively large Positive dielectric anisotropy, small optical anisotropy, high clearing point, good low temperature stability and low rotational viscosity, can maintain high charge retention rate in high temperature region and maintain faster in low temperature region Excellent response speed, very suitable for IPS display mode or FFS display mode.

Description

technical field [0001] The invention relates to a liquid crystal composition, in particular to a liquid crystal composition containing a 1-oxo-bicyclyl-[2.2.2]octane compound and an application thereof, belonging to the technical field of liquid crystal display materials. Background technique [0002] my country's display industry has developed rapidly during the "Twelfth Five-Year Plan" period. The number of production lines has increased from 7 to 22, and the panel shipment area has reached nearly 45 million square meters. The market share of global shipments has increased from 3.9% to 22%, ranking first in the world. third. The domestic self-sufficiency rate of 32-inch and smaller LCD panels increased from 10% to 72.3%, and the domestic self-sufficiency rate of 32-inch and larger LCD panels increased from zero to 40.5%. In 2016, my country's new display industry will strive to rank second in the world in terms of shipments by area, with a global market share of more than ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44G02F1/1333
CPCC09K19/3402C09K19/44C09K2019/3425G02F1/1333
Inventor 史子谦丰佩川尹环房凤梅马峰董向波孙燕付博
Owner YANTAI XIANHUA CHEM TECH CO LTD