Quick-response liquid crystal composition

Abstract

The invention relates to a liquid crystal composition which comprises the following components in parts by weight: 1-30 parts of compound disclosed as general formula I and 10-70 parts of compound disclosed as general formula II. The liquid crystal composition has the advantages of low rotary viscosity, high elastic constant, favorable low-temperature mutual solubility and high response speed, can be used for multiple display modes of quick-response liquid crystal display, and can obviously improve the display effect of the liquid crystal display device in TN (twisted nematic), IPS (in-plane switching) or FFS (fringe field switching)-mode display devices.

Description

technical field [0001] The invention relates to a liquid crystal composition, in particular to a liquid crystal composition with low rotational viscosity, large elastic constant and fast response time, and belongs to the field of liquid crystal materials and their applications. Background technique [0002] At present, LCD product technology has matured, successfully solved technical problems such as viewing angle, resolution, color saturation and brightness, and its display performance has approached or exceeded that of CRT displays. Large-size and small and medium-sized LCDs have gradually occupied the mainstream position of flat panel displays in their respective fields. However, limited by the liquid crystal material itself (high viscosity), the response time becomes the main factor affecting high-performance displays. [0003] Specifically, the response time of the liquid crystal is limited by the rotational viscosity γ1 and the elastic constant (γ1 / K) of the liquid cr...

AI Technical Summary

Problems solved by technology

In actual research, it is found that rotational viscosity and elastic constant are usually a pair of relatively contradictory parameters. Reducing the rotational viscosity will cause the elastic constant to decrease, which cannot meet the requirement of reducing the response time. The existing liquid crystal compositions mainly have elastic constant and rotational Viscosity can not be well matched, resulting in slow response time, the liquid crystal composition provided by the present invention overcomes this shortcoming

Therefore, it is necessary to provide a liquid crystal composition with a small rotational viscosity / elastic constant (γ1 / K) ratio, so as to obtain a liquid crystal composition with fast response, thereby solving the problem of slow response time of liquid crystal displays

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