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 denotes a linear alkyl group having 1 - 14 carbon atoms; R2 denotes a linear or branched alkyl group having 1 - 14 carbon atoms capable of having a substituent; and X1 denotes a single bond, -O- or - @O-; and at least one compound represented by the following formula (II): <CHEM> wherein R3 denotes a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent; R4 denotes a linear alkyl group having 1 - 10 carbon atoms; X2 denotes a single bond, -O-, -O @-, - @O- or -O @O-; and Y denotes -O @-, -@O-, -CH2O- or -OCH2-; and <CHEM> respectively denote <CHEM>