A kind of negative wide temperature phase liquid crystal composition material and its application

A liquid crystal composition and negative technology, which is applied in the field of vehicle-mounted liquid crystal display devices, can solve problems such as poor viewing experience, unstable display, and low display contrast, so as to improve the influence of operating voltage, low display contrast, and display side stability effect

Active Publication Date: 2022-12-02
重庆汉朗精工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problems existing in the prior art, the present invention provides a negative wide temperature phase liquid crystal composition, which is used to improve the problems of low display contrast and poor viewing experience in vehicle-mounted liquid crystals, as well as problems caused by harsh outdoor work. Display instability caused by the environment

Method used

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  • A kind of negative wide temperature phase liquid crystal composition material and its application
  • A kind of negative wide temperature phase liquid crystal composition material and its application
  • A kind of negative wide temperature phase liquid crystal composition material and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] According to the composition of the liquid crystal composition in Table 1, the liquid crystal composition was prepared with reference to the above-mentioned method of the present invention, and poured into a test box for performance testing. The measured physical parameters are shown in Table 1.

[0095] The composition and test data of the liquid crystal composition of table 1 embodiment 1

[0096]

[0097]

[0098] In Example 1, the material has characteristics such as higher clearing point, wider wide-temperature phase working range, higher voltage retention rate and lower ion concentration, and is applied in vehicle-mounted liquid crystal displays to a large extent. The display quality of the car LCD is guaranteed.

Embodiment 2

[0100] According to the composition of the liquid crystal composition in Table 2, the liquid crystal composition was prepared with reference to the above-mentioned method of the present invention, and poured into a test box for performance testing. The results of the measured physical parameters are shown in Table 2.

[0101] The composition and test data of the liquid crystal composition of table 2 embodiment 2

[0102]

[0103]

[0104] In embodiment 2, this material has characteristics such as higher clearing point, wider wide temperature phase working range, and higher voltage retention rate and lower ion concentration, is applied in the vehicle-mounted liquid crystal display, improves to a great extent The display quality of the car LCD is guaranteed.

Embodiment 3

[0106] According to the composition of the liquid crystal composition in Table 3, the liquid crystal composition was prepared with reference to the above-mentioned method of the present invention, and poured into a test box for performance testing. The results of the measured physical parameters are shown in Table 3.

[0107] The composition and test data of the liquid crystal composition of table 3 embodiment 3

[0108]

[0109]

[0110] The clearing point of the material in Example 3 is higher, it has a wider working range of wide temperature phase, and excellent quality parameters.

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Abstract

The invention relates to a negative wide temperature phase liquid crystal composition material and an application thereof, belonging to the technical field of liquid crystal materials. The negative wide temperature phase liquid crystal composition material, according to the mass percentage, contains the monomer compound with the structure shown in the general formula I, and the mass fraction is 1%-34%; the monomer compound with the structure shown in the general formula II, the mass fraction 0.5%-20%; the monomer compound with the structure shown in the general formula III has a mass fraction of 2%-68%; and the monomer compound with the structure shown in the general formula IV has a mass fraction of 2%-86%. The material has a high clearing point, a low melting point and a wide phase temperature range, and is suitable for wide-temperature liquid crystal displays, especially for vehicle-mounted liquid crystal displays. The negative wide temperature phase liquid crystal composition can significantly improve the problems of low display contrast and poor viewing experience of the vehicle-mounted liquid crystal, and solve the problem of poor working stability of the display device caused by the harsh outdoor environment of the vehicle-mounted liquid crystal.

Description

technical field [0001] The invention relates to a negative wide temperature phase liquid crystal composition material and its application. The liquid crystal composition material can be used in the liquid crystal display industry, especially for vehicle-mounted liquid crystal display devices, so as to solve the problems caused by the harsh outdoor environment of vehicle-mounted liquid crystals. The problem of causing poor working stability of a display device belongs to the technical field of liquid crystal materials. Background technique [0002] With the rapid development of liquid crystal materials, the application fields of liquid crystal compounds have been significantly expanded to various display devices, electro-optic devices, electronic components, sensors and so on. For example, clocks, tablets, measuring machines, automotive panels, TV and computer monitors can be seen everywhere in life. According to the dielectric properties, liquid crystal materials are furthe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44C09K19/30G02F1/1333
CPCC09K19/44C09K19/3003G02F1/1333C09K2019/3004C09K2019/3009C09K2019/301C09K2019/3021C09K2019/3016
Inventor 李蓝苹黄善兴胡艳华王恩洋张雪张国庆张曼林丰
Owner 重庆汉朗精工科技有限公司
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