申请人:Seiko Epson Corporation
公开号:US05356558A1
公开(公告)日:1994-10-18
A tolane derivative, a liquid crystal composition containing the derivative, and a liquid crystal display device including the composition, in which the tolane derivative is represented by the following general formula: ##STR1## wherein R represents a straight-chain alkyl group having 1 to 10 carbon atoms, and each of X.sub.1, X.sub.2, X.sub.3 and X.sub.4 represents a fluorine atom or a hydrogen atom wherein at least one X represents a fluorine atom, and Y represents a nitrile group or a straight-chain alkyl group having 1 to 10 carbon atoms. By blending the above-described compound with a general liquid crystal composition, a liquid crystal composition is provided which exhibits a wide practical temperature range as well as a large anisotropy of refractive index.
一种甲苯衍生物,包含该衍生物的液晶组合物,以及包括该组合物的液晶显示装置,其中该甲苯衍生物由以下一般式表示:##STR1## 其中R代表具有1至10个碳原子的直链烷基基团,每个X.sub.1、X.sub.2、X.sub.3和X.sub.4代表氟原子或氢原子,其中至少一个X代表氟原子,Y代表腈基或具有1至10个碳原子的直链烷基基团。通过将上述化合物与一般液晶组合物混合,提供了一种液晶组合物,其具有广泛的实用温度范围以及较大的折射率各向异性。