申请人:Chisso Corporation
公开号:EP0267758A2
公开(公告)日:1988-05-18
An optically active compound exhibiting high speed response properties when used as a component of liquid crystal materials used in a liquid crystal display mode utilizing ferroelectricity, and a liquid crystal composition containing the compound are provided, which compund is expressed by the formula
wherein R¹ represents alkyl, alkoxy or alkoxycarbonyl each of 2 to 18 C, R² represents alkyl of 3 to 18C or alkoxy of 1 to 18C and A represents a member selected from a group of two directly bonded six-membered rings having a halogen atom, cyano group, methyl group or trifluoromethyl group attached thereonto and * represents an unsymmetric carbon atom.
本发明提供了一种在用作利用铁电性的液晶显示模式中所用液晶材料的成分时具有高速响应特性的光学活性化合物,以及一种含有该化合物的液晶组合物,该组合物由式表示
其中,R¹分别代表 2 至 18C 的烷基、烷氧基或烷氧基羰基,R²代表 3 至 18C 的烷基或 1 至 18C 的烷氧基,A 代表选自两个直接结合的六元环的成员,该组环上连接有卤素原子、氰基、甲基或三氟甲基,*代表不对称碳原子。