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Liquid crystal composition and its liquid crystal display element or display

A technology for liquid crystal display elements and liquid crystal compositions, applied in liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problems of not forming a perfect theoretical explanation, difficult to find rules, etc., and achieve good UV resistance, moderate optical performance, etc. Effects of anisotropy Δn and high charge retention

Active Publication Date: 2017-05-24
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Small changes in liquid crystal molecules will cause significant changes in the performance of conventional parameters of liquid crystals. Some of these changes have certain rules, and some are almost difficult to find. The liquid crystal material and its ratio will also affect the interaction between liquid crystal molecules. Obvious effects, these effects are very subtle, and have not formed a perfect theoretical explanation so far

Method used

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  • Liquid crystal composition and its liquid crystal display element or display
  • Liquid crystal composition and its liquid crystal display element or display
  • Liquid crystal composition and its liquid crystal display element or display

Examples

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Embodiment 1

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Embodiment 2

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Embodiment 3

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Abstract

The invention discloses a liquid crystal composition, and a liquid crystal display element or display thereof. The liquid crystal composition contains a compound represented by general formula I, a compound represented by general formula II, and a compound represented by general formula III; and in the general formula I, the general formula II and the general formula III, R1 and R3 are C2-5 linear alkyl groups, R2 represents a C2-5 linear alkyl group or a C2-5 alkenyl group, R4 represents H or a C1-3 linear alkyl group, and X1 and X2 represent H or F. The liquid crystal composition has the advantages of fast response speed, large dielectric anisotropy, moderate optical anisotropy and good light and heat stability, and is especially suitable for being used in IPS liquid crystal display devices.

Description

technical field [0001] The invention relates to a liquid crystal composition and a liquid crystal display element or a liquid crystal display comprising the liquid crystal composition. Background technique [0002] At present, the application range of liquid crystal compounds is expanding more and more widely, and it can be applied to various types of displays, electro-optic devices, sensors, and the like. There are various types of liquid crystal compounds used in the above-mentioned display fields, among which nematic liquid crystals are most widely used. Nematic liquid crystals have been used in passive TN, STN matrix displays and systems with TFT active matrix. [0003] For the application field of thin film transistor technology (TFT-LCD), although the market has been huge in recent years and the technology has gradually matured, people's requirements for display technology are also constantly improving, especially in achieving fast response and reducing driving voltag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44G02F1/1333
Inventor 王明霞员国良张丽梅孟劲松康素敏王奎
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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