申请人:Takasago International Corporation
公开号:US06093345A1
公开(公告)日:2000-07-25
An optically active compound represented by formula (I): wherein A represents ##STR1## wherein R.sup.2 represents an alkyl group having from 8 to 12 carbon atoms; R.sup.1 represents a straight chain alkyl group having from 2 to 5 carbon atoms; X represents a fluorine atom or a methyl group; n represents 1 or 2; m represents an integer of from 0 to 3; and C* represents an asymmetric carbon atom, and a liquid crystal composition containing the same are disclosed. The compound exhibits large spontaneous polarization and low viscosity and, when added to an achiral base liquid crystal composition, induces a chiral nematic phase in which the helical pitch has small temperature dependence.
一种由化学式(I)表示的光学活性化合物:其中A代表##STR1##其中R.sup.2代表具有8至12个碳原子的烷基基团;R.sup.1代表具有2至5个碳原子的直链烷基基团;X代表氟原子或甲基基团;n代表1或2;m代表0至3的整数;C*代表一个不对称碳原子,并且公开了含有该化合物的液晶组合物。该化合物表现出较大的自发极化和低粘度,并且当添加到无手性基础液晶组合物中时,诱导出具有小温度依赖性的螺旋向列相。