Nematic liquid crystal composition and application thereof in 3D light valve display

Abstract

The invention relates to a nematic liquid crystal composition and a liquid crystal composition for a three-dimensional (3D) light valve display mode and liquid crystal display elements thereof. The nematic liquid crystal composition comprises 8 to 65 percent of compound I, 10 to 70 percent of compound II, 1 to 35 percent of compound III, 0 to 18 percent of compound IV, 0 to 25 percent of compoundV and 0 to 35 percent of compound VI. The liquid crystal composition for the 3D light valve display mode comprises the nematic liquid crystal composition and an optical activity component in an amount which is 0.01 to 2 percent based on the total weight of the nematic liquid crystal composition. The liquid crystal compositions are suitable for 3D light valve glasses.

Description

technical field [0001] The present invention relates to a liquid crystal composition and a liquid crystal display element comprising the liquid crystal composition, in particular to a nematic liquid crystal composition, a liquid crystal composition comprising the nematic liquid crystal composition for a 3D light valve display mode, and a liquid crystal composition comprising the nematic liquid crystal composition A liquid crystal display element of a column liquid crystal composition or the liquid crystal composition used in a 3D light valve display mode. Background technique [0002] For liquid crystal display elements, according to the display mode of liquid crystal, it is divided into PC (phase change, phase change), TN (twisted nematic, twisted nematic), STN (super twisted nematic, super twisted nematic), ECB (electrically controlled birefringence) , electronically controlled birefringence), OCB (opticaly compensated bend), IPS (in-plane switching, coplanar switching), V...

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Problems solved by technology

At present, there is no substance that can satisfy the aforementioned properties as a single compound

For the preparation of liquid crystal compositions, all these properties should be satisfied, so there are cases where the aforementioned properties cannot be satisfied due to small Δn or large viscosity

For example, in the liquid crystal composition disclosed by Chinese Patent Publication No. CN1249736A, the minimum viscosity can be 13.8 (mPa·s), but its refractive index is 0.084, which cannot be used in a small box in 3D mode; Chinese Patent No. CN 1218451A discloses In the positive liquid crystal composition, the refractive index is 0.197, but its viscosity is 39.7 (mPa·s), and the response speed is not fast enough

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