Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd.

Hubo Zhang

Lei Zhao

Guoliang Yun

Ming Li

Jinsong Meng

Zhian Liang

Ruixiang Liang

Ke-Lun Shu

Zhengqiang Li

Yongfeng Bao

YunXia Qiao

YanLi Dong

Wenfei Liu

Provided are a difluoromethoxy-bridge liquid crystal compound containing methyl-substituted 2,3-difluorophenyl, a liquid crystal composition containing the compound, and a liquid crystal display element and a liquid crystal display, wherein said liquid crystal composition is represented by the following formula I: wherein the difluoromethoxy-bridge liquid crystal compound containing methyl-substituted 2,3-difluorophenyl not only has a high clearing point (CP) and a prominent low-temperature miscibility with other liquid crystals, but also has a good stability to ultraviolet light, stability to high temperatures, and particularly also a high vertical dielectric constant (&#x3b5;), and may be applied to the formulation of various types of liquid crystal compositions, and it is particularly prominent that the compound has the advantages of both a good low-temperature miscibility and a high vertical dielectric constant (&#x3b5;).

Difluoromethoxy-bridge liquid crystal compound containing methyl-substituted 2,3-difluorophenyl and crystal composition

Disclosed is a liquid crystal composition comprising one or more compounds represented by formula I and/or formula II and one or more compounds represented by formula III: wherein the definition of each substituent is given. The composition involved in the present invention has a low viscosity &#x3b3;, a high clearing point Tni and a large optical anisotropy &#x394;n, and can realize a rapid response of liquid crystal display.

Liquid crystal composition

Disclosed are a chiral compound, a liquid crystal composition containing the chiral compound, an optically anisotropic body and a liquid crystal display device. The structural formula of said chiral compound is as represented by the following formula I: The chiral compound has a high HTP value and a good solubility; a highly helical, twisted liquid crystal composition can be prepared by adding a small amount of the chiral compound; reducing the addition amount of the chiral compound can reduce the negative effect of the chiral compound on the parameters of the liquid crystal composition; under the conditions of the same addition ratio and the same helical pitch, the chiral compound can reduce the response time of the liquid crystal composition; in addition, the chiral compound has a simple structure and greatly reduces the synthesis cost.

Chiral compound, liquid crystal composition containing the same, optically anisotropic body, and liquid crystal display device

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Shijiazhuang, China

Hubo Zhang