A liquid crystal composition containing polyfluorobiphenyl liquid crystal compound and its application

Abstract

The invention relates to a liquid crystal composition with poly-fluorobiphenyl liquid crystal compounds. The liquid crystal composition comprises at least one compound represented as a general formulaI, at least one compound represented as a general formula II and at least one compound represented as a general formula III. The compounds represented as the general formula I are of poly-fluorine-substituted triple-ring biphenyl structures and are high in negative dielectric anisotropy; the compounds represented as the general formula II are compounds which are of double-ring structures, and arelow in rotary viscosity, accordingly, the rotary viscosity of the liquid crystal composition can be effectively lowered, and the response time of liquid crystal displays can be shortened; the compounds represented as the general formula III are liquid crystal compounds with methoxy bridged bonds and 2, 3-difluoro-1, 4 phenyl structures and are high in negative dielectric anisotropy. The liquid crystal composition has the advantages that the liquid crystal composition is low in rotary viscosity and can be used for fast-response liquid crystal display in diversified display modes, and display effects of the liquid crystal displays can be obviously improved if the liquid crystal composition is used in VA-mode displays such as VA, MVA, PVA and PSVA or IPS-mode and FFS-mode displays.

Description

technical field [0001] The present invention relates to a liquid crystal composition, specifically, the liquid crystal composition provided by the present invention has negative dielectric anisotropy; more precisely, the liquid crystal composition provided by the present invention contains at least one Liquid crystal compounds of benzene. 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 TFT active matrix system. [0003] At present, negative liquid crystals are wi...

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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