Compound, liquid crystal medium, liquid crystal display element, and liquid crystal display

A liquid crystal medium and compound technology, applied in the field of liquid crystal display, can solve the problems of high-definition bright spots and difficulty in taking into account rotational viscosity, etc., and achieve the effects of improving clearing points, improving low-temperature mutual solubility, and expanding the working temperature range

Active Publication Date: 2021-03-12
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult for such compounds to balance good rotational viscosity and high clearing point

Method used

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  • Compound, liquid crystal medium, liquid crystal display element, and liquid crystal display
  • Compound, liquid crystal medium, liquid crystal display element, and liquid crystal display
  • Compound, liquid crystal medium, liquid crystal display element, and liquid crystal display

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Embodiment Construction

[0021] [Liquid crystal compound]

[0022] The compound structural formula shown in formula I of the present invention is as follows,

[0023]

[0024] In formula I, R represents an alkyl group with 1-10 carbon atoms or an alkenyl group with 2-10 carbon atoms, wherein any one or more hydrogen atoms are optionally substituted by fluorine atoms;

[0025] R' represents a hydrogen atom, an alkyl group with 1-10 carbon atoms or an alkenyl group with 2-10 carbon atoms, wherein any one or more non-adjacent -CH 2 - optionally substituted by -O-, cyclopentylene, cyclobutylene or cyclopropylene, any one or more hydrogen atoms are optionally substituted by fluorine atoms;

[0026] Z represents an alkylene group with 1-10 carbon atoms or an alkenylene group with 2-10 carbon atoms, wherein any one or more non-adjacent -CH 2 - optionally substituted by -O-, any one or more hydrogen atoms are optionally substituted by fluorine atoms;

[0027] W means S or O.

[0028] In some embodiment...

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PUM

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Abstract

The invention relates to a compound, a liquid crystal medium, a liquid crystal display element and a liquid crystal display. The structural formula of the compound is shown as a formula I in the specification. The compound can be used as a liquid crystal compound; and by using the compound, the clearing point of liquid crystal molecules is further improved on the basis of maintaining good rotary viscosity. Besides, the compound disclosed by the invention is used in a liquid crystal composition, and low-temperature intersolubility is good, so the working temperature range of the liquid crystalcomposition is wide.

Description

technical field [0001] The invention belongs to the field of liquid crystal display. Background technique [0002] Liquid crystals have been widely used since commercially available liquid crystal compounds were first discovered about 30 years ago. Known fields of application of conventional mixtures are in particular displays for watches and pocket calculators, and large display panels used in railway stations, airports and stadiums. Additional areas of application are displays for laptop and desktop computers, navigation systems and video applications. [0003] In order to make the performance of the display device closer to the ideal, people have been working on researching new liquid crystal compounds, which enables the performance of the liquid crystal compound and the display device to continue to develop. [0004] In Patent Document 1, the following compounds for liquid crystal media are disclosed: [0005] [0006] where R 1 and R 2 represents an alkyl group....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/91C07D333/76C09K19/30C09K19/32C09K19/34C09K19/44C09K19/46G02F1/1333
CPCC07D307/91C07D333/76C09K19/3405C09K19/3491C09K19/3003C09K19/322C09K19/3066C09K19/44C09K19/46G02F1/1333C09K2019/3004C09K2019/3009C09K2019/301C09K2019/3016C09K2019/123C09K2019/181C09K2019/3077
Inventor 张虎波王一平李佳明李洪峰李明吕帅帅孟劲松王晓娜梁志安
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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