申请人:Chisso Corporation
公开号:US04886622A1
公开(公告)日:1989-12-12
An optically liquid crystalline compound having an extremely large spontaneous polarization value and a chiral smectic liquid crystal composition containing the compound are provided, the compound being expressed by the formula ##STR1## wherein m represents an integer of 2 to 18; l represents an integer of 0 to 12; n represents 0 or 1; R represents an alkyl group or an alkoxy group each of 2 to 20 carbon atoms, a halogen atom or cyano group; and A and B each represent a single bond, ##STR2## wherein X represents hydrogen atom, a halogen atom or cyano group, and a chiral smectic liquid crystal composition containing at least one kind of the above compound.
提供一种具有极大自发极化值的光学液晶化合物和含有该化合物的手性液晶组合物,该化合物由以下公式表示:##STR1## 其中m表示2到18的整数;l表示0到12的整数;n表示0或1;R表示具有2到20个碳原子的烷基或烷氧基,卤素原子或氰基;A和B分别表示单键,##STR2## 其中X表示氢原子,卤素原子或氰基,以及至少含有上述一种化合物的手性液晶组合物。