Liquid crystal composition and application thereof

Abstract

The invention relates to a liquid crystal composition, which is prepared from the following ingredients in percentage by mass: 5 to 25 percent of one or several kinds of liquid crystal compounds shownby a general formula I-1 and / or a general formula I-2, 1 to 10 percent of one or several kinds of compounds shown by a general formula II, 5 to 30 percent of one or several kinds of compounds shown by a general formula III, 10 to 40 percent of one or several kinds of compounds shown by a general formula IV and 20 to 60 percent of one or several kinds of compounds shown by a general formula V, wherein the structures of the general formulas I-1, I-2, II, III, IV and V are shown in the description. The liquid crystal composition has the beneficial effects that the composition has high transmission rate, high clearing points, proper birefringence anisotropy, high dielectric anisotropy, low rotating viscosity and high response speed, and is particularly applicable to active matrix TN-FTF, IPS-TFT, FFS-TFT displays with low box thickness and high display quality images. The formulas are shown in the description.

Description

technical field [0001] The invention relates to a liquid crystal composition, and also relates to an application of the liquid crystal composition in the field of liquid crystal displays. Background technique [0002] Liquid crystals are widely used as electrolytes in display devices. In the prior art, a variety of liquid crystal compounds have been synthesized, but a single liquid crystal compound cannot meet the needs of various liquid crystal devices such as wide operating temperature, large dielectric anisotropy, low rotational viscosity and suitable refractive index anisotropy. performance parameters. Therefore, the liquid crystal materials used as liquid crystal media are all liquid crystal compositions. From the perspective of liquid crystal composition modulation, liquid crystal compounds with different properties are used to meet these requirements. Because the performance of various materials is mutually restricted, such as using low viscosity value can achieve s...

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to propose a liquid crystal composition to solve the problems of high transmittance, high-definition bright spots, appropriate birefringent anisotropy, high dielectric anisotropy, low rotational viscosity, and fast response speed required for practical applications. performance problem

Images