申请人:TEIKOKU CHEMICAL INDUSTRY CO., LTD.
公开号:EP0404480A2
公开(公告)日:1990-12-27
A ferroelectric liquid crystal electro-optical device comprises a pair of plates (1,2) having driving electrodes (3), an alignment film (5), a ferroelectric liquid crystal material (4) having a negative dielectric anisotropy and polarizers (6, 7). The ferroelectric liquid crystal material (4) comprises a ferroelectric liquid crystal composition containing 10 to 80% by weight in total of one or more compounds of the general formula:
wherein R₁ represents a straight-chain alkyl or alkoxy group, or an alkyl, alkoxy, alkoxyalkoxy or acyloxy group each having an asymmetric carbon atom, and R₂ represents a straight-chain alkyl group or an alkyl group having an asymmetric carbon atom.
一种铁电液晶电子光学装置包括一对具有驱动电极 (3) 的板 (1,2)、对准膜 (5)、具有负介电各向异性的铁电液晶材料 (4) 和偏振片 (6,7)。铁电液晶材料(4)包括一种铁电液晶组合物,其中含有 10%至 80%(按重量计)的一种或多种通式化合物:
其中 R₁ 代表直链烷基或烷氧基,或各自具有一个不对称碳原子的烷基、烷氧基、烷氧基烷氧基或酰氧基,R₂ 代表直链烷基或具有一个不对称碳原子的烷基。