Liquid crystal composition with high penetration rate and application of liquid crystal composition

Abstract

The invention provides a liquid crystal composition and application thereof. The liquid crystal composition comprises liquid crystal compounds shown as a general formula I and a general formula II. The general formula I and the general formula II are shown. An R, an R', an R2 and a Y in the general formulas independently selectively represent H, F, Cl, C1-C7 alkyl, C1-C7 alkoxy, C2-C7 alkenyl or C2-C7 alkene alkoxy, and the H or CH2 can be substituted by cyclopentyl or the F; or the R, the R', the R2 and the Y independently represent cyclopentyl or cyclopentyl substituted by the C1-C7 alkyl, the C1-C7 alkoxy or the C2-C7 alkenyl; an X1, an X2, an X3 and an X4 independently selectively represent H or F; each of certain components in the general formulas is optional one groups formed by certain components. The liquid crystal composition and the application have the advantages that the liquid crystal composition has a high perpendicular dielectric constant value, nematic phase in wide temperature ranges and a high elastic coefficient K, is favorable for improving the contrast and the light transmittance of liquid crystal displays and saving energy, and the quality of displayed imagescan be improved by the aid of the liquid crystal composition.

Description

technical field [0001] The invention relates to the field of liquid crystal materials, in particular to a liquid crystal composition and its application. Background technique [0002] In the 1960s, RCA Company first discovered that electrical stimulation could change the light transmission mode of liquid crystals, and then applied this property to release liquid crystal display technology. Then liquid crystals gradually attracted people's attention and rapidly developed into various fields. In 1966, after DuPont synthesized Kevlar fibers using aramid liquid crystals, liquid crystal materials began the process of industrialization. After decades of rapid development, liquid crystal materials have been widely used in many fields such as display technology, optical storage devices, and solar cells due to their special properties, and the research scope covers many fields such as chemistry, biology, and information science. One of the most popular and indispensable new material...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a liquid crystal composition with high transmittance to improve the problem of low light transmittance of liquid crystal materials in the prior art, thereby reducing power consumption, increasing brightness and improving contrast

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