Ferroelectric chiral smectic liquid crystal composition and liquid crystal device using same.

摘要

A ferroelectric chiral smectic liquid crystal composition, comprising at least one optically active compound represented by the following formula (I): <CHEM> wherein R1 and R2 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent, at least one of R1 and R2 being optically active; X1 denotes -O-, -O @-, -@O- or -O @O-; and X2 denotes a single bond, -O-, -O @-, -@O- or -O @O-; and at least one compound represented by the following formula (II): <CHEM> wherein R3 and R4 respectively denote a linear or branched optically inactive alkyl group having 1 - 18 carbon atoms capable of having an alkoxy group of 1 - 12 carbon atoms; X3 and X4 respectively denote a single bond, -O-, -O @-, -@O- or -O @O-; and m and n are respectively 0, 1 or 2 with proviso that both of m and n are not 0.