Chiral smectic liquid crystal composition and device using the same

摘要

A ferroelectric chiral smectic liquid crystal composition is provided with a fast response speed and a less temperature dependency of the response speed by containing at least one mesomorphic compound represented by the formula (1) below: <IMAGE> (1) wherein R1 denotes an alkyl group having 1-16 carbon atoms and capable of having a substituent; R2 denotes an alkyl group, alkoxy group, alkoxycarbonyl group, acyloxy group or alkoxycarbonyloxy group each having 1-16 carbon atoms and capable of having a substituent; and <IMAGE> respectively denotes <IMAGE> <IMAGE> each capable of having a substituent.