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Quick-response liquid crystal composition

A technology of liquid crystal composition and compound, which is applied in the direction of liquid crystal materials, chemical instruments and methods, etc., can solve the problems of reduced response time, decreased elastic constant, slow response time, etc., and achieves the solution of slow response speed, low rotational viscosity, short response the effect of time

Active Publication Date: 2015-05-06
BEIJING BAYI SPACE LCD MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual research, it is found that rotational viscosity and elastic constant are usually a pair of relatively contradictory parameters. Reducing the rotational viscosity will cause the elastic constant to decrease, which cannot meet the requirement of reducing the response time. The existing liquid crystal compositions mainly have elastic constant and rotational Viscosity can not be well matched, resulting in slow response time, the liquid crystal composition provided by the present invention overcomes this shortcoming
Therefore, it is necessary to provide a liquid crystal composition with a small rotational viscosity / elastic constant (γ1 / K) ratio, so as to obtain a liquid crystal composition with fast response, thereby solving the problem of slow response time of liquid crystal displays

Method used

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  • Quick-response liquid crystal composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] Table 2: Weight percent and performance parameters of each component in the liquid crystal composition

[0112]

Embodiment 2

[0114] Table 3: Weight percent and performance parameters of each component in the liquid crystal composition

[0115]

[0116]

Embodiment 3

[0118] Table 4: Weight percent and performance parameters of each component in the liquid crystal composition

[0119]

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PUM

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Abstract

The invention relates to a liquid crystal composition which comprises the following components in parts by weight: 1-30 parts of compound disclosed as general formula I and 10-70 parts of compound disclosed as general formula II. The liquid crystal composition has the advantages of low rotary viscosity, high elastic constant, favorable low-temperature mutual solubility and high response speed, can be used for multiple display modes of quick-response liquid crystal display, and can obviously improve the display effect of the liquid crystal display device in TN (twisted nematic), IPS (in-plane switching) or FFS (fringe field switching)-mode display devices.

Description

technical field [0001] The invention relates to a liquid crystal composition, in particular to a liquid crystal composition with low rotational viscosity, large elastic constant and fast response time, and belongs to the field of liquid crystal materials and their applications. Background technique [0002] At present, LCD product technology has matured, successfully solved technical problems such as viewing angle, resolution, color saturation and brightness, and its display performance has approached or exceeded that of CRT displays. Large-size and small and medium-sized LCDs have gradually occupied the mainstream position of flat panel displays in their respective fields. However, limited by the liquid crystal material itself (high viscosity), the response time becomes the main factor affecting high-performance displays. [0003] Specifically, the response time of the liquid crystal is limited by the rotational viscosity γ1 and the elastic constant (γ1 / K) of the liquid cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44
Inventor 陈卯先陈海光姜天孟田会强张琳李青华袁瑾郭云鹏储士红苏学辉
Owner BEIJING BAYI SPACE LCD MATERIALS TECH
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