Liquid crystal composition and display element or display using the liquid crystal composition
A technology for liquid crystal compositions and display elements, 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, wide nematic phase, etc. Temperature range, effect of suitable birefringence anisotropy
Active Publication Date: 2017-10-20
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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Problems solved by technology
Small changes in liquid crystal molecules will cause obvious 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 rules. They will also have obvious effects on the interaction between liquid crystal molecules. These effects are very Subtle, so far there is no perfect theoretical explanation
Method used
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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 display element or display using the liquid crystal composition. The liquid crystal composition contains one or more compounds of general formula I, general formula II, general formula III and general formula IV, wherein R1 , R2, R3 represent a straight-chain alkyl group with 1-5 carbon atoms, R4 represents H or a straight-chain alkyl group with 1-3 carbon atoms, and n is 0, 1, or 2. The liquid crystal composition has fast response speed, large dielectric anisotropy, moderate optical anisotropy, good stability to light and heat, and is especially suitable for 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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IPC IPC(8): C09K19/44G02F1/1333
Inventor 王明霞员国良华瑞茂康素敏丰景义贵丽红
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD