Liquid crystal composition containing fluoroalkoxy liquid crystal compounds and application of liquid crystal composition

Abstract

The invention relates to a liquid crystal composition containing fluoroalkoxy liquid crystal compounds, wherein the liquid crystal composition comprises at least one compound as shown in a general formula I and at least one compound as shown in a general formula II. The compound as shown in the general formula I has a 2,3-difluorobenzene structure and has relatively high negative dielectric anisotropy and a high clearing point; and the compound as shown in the general formula II contains fluoroalkoxy biphenyl 2,3-difluorobenzene and has low rotary viscosity as well as relatively high optical anisotropy and negative dielectric anisotropy. The liquid crystal composition disclosed by the invention has low rotary viscosity, large elastic constant, good low temperature intersolubility and highresponse speed and can be used for fast response liquid crystal display in various display modes; and when being used in a display in a VA / MVA / PVA / PSVA, IPS or FFS mode, the liquid crystal compositionis capable of obviously improving the display effect of a liquid crystal display and particularly has a good effect on improving the response time of the liquid crystal display.

Description

technical field [0001] The invention belongs to the field of liquid crystal materials and applications thereof, and relates to a liquid crystal composition, specifically a nematic liquid crystal composition. Specifically, the liquid crystal composition provided by the invention has negative dielectric anisotropy, More precisely, the liquid crystal composition provided by the present invention has a fast response time. Background technique [0002] At present, liquid crystals have been widely used in the field of information display, and at the same time, some progress has been made in the application in optical communication (S.T.Wu, D.K.Yang. Reflective Liquid Crystal Displays. Wiley, 2001). In recent years, the application fields of liquid crystal compounds have been significantly expanded to various display devices, electro-optic devices, electronic components, sensors, etc. Nematic liquid crystal compounds have been most widely used in flat panel displays, especially for...

AI Technical Summary

Problems solved by technology

However, the response time problem of negative liquid crystals is a major problem encountered at present. The response time of FFS displays using negative liquid crystals is 50% or more slower than that of positive liquid crystal FFS displays.

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