Liquid crystal composition and application thereof

Abstract

The invention relates to a liquid crystal composition. The liquid crystal composition comprises at least one or more compounds as represented by a general formula I and one or more compounds as represented by a general formula II, wherein the general formula I is as described in the specification; the compounds as represented by the general formula I are compounds having connected 2,3-difluorobenzene structures and difluoromethoxy bridge bonds and having large dielectric anisotropy and vertical dielectricity; and the compounds as represented by the general formula II are of double-ring structures, have the characteristics of low rotational viscosity and excellent mutual solubility, and are an essential component for fast-response liquid crystal displays. The liquid crystal composition of the invention has low rotational viscosity, large vertical dielectricity and fast response speed and can be used for liquid crystal displays of various display modes; as applied to displays with TN, IPS or FFS modes, the liquid crystal composition can significantly improve the display effect of liquid crystal displays; and the liquid crystal composition is especially applicable to a FFS liquid crystal display mode and can effectively improve the flickering problem of the FFS mode display and enhancing transmittance.

Description

technical field [0001] The invention relates to the field of liquid crystal material and its application, in particular to a liquid crystal composition and its application. 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] Liquid crystal display has experienced a long development path with the discovery of liquid crystal. In 1888, the Austrian botanist Friedrich Reinitzer discovered the first liquid crystal material, cholesterol b...

AI Technical Summary

Problems solved by technology

[0007] At present, as people have higher and higher requirements for display effects, high-definition and high-brightness liquid crystal displays are more and more favored by people. At present, the brightness of the display is mainly increased by increasing the brightness of the backlight, which leads to increased power consumption and battery life. Reduced, the life of the backlight is reduced, so it is particularly important to increase the transmittance of the LCD

[0008] On the other hand, due to the bending electric field effect of the FFS liquid crystal display, the Flicker (flicker) problem of the liquid crystal display is serious, and the display effect is reduced.

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