Flüssigkristallzusammensetzung, Flüssigkristallvorrichtung und Flüssigkristallapparat

摘要

A liquid crystal composition contains a mesomorphic compound represented by the following formula (A): wherein R1 and R2 independently denote a linear or branched alkyl group having 1 - 18 carbon atoms; X1 and X2 independently denote a single bond, -O-, -CO-O-or -O-CO-; and A1 denotes a single bond, or and A2 denotes or and a mesomorphic compound represented by the following formula (B): wherein R3 denotes a linear or branched alkyl group having 1 - 18 carbon atoms; X3 and X4 independently denote a single bond, -O-, -CO-O- or -O-CO-; m is an integer of 3 - 16; and A3 denotes or The liquid crystal composition may preferably be formulated as a chiral smectic liquid crystal composition. The liquid crystal composition is useful in providing a liquid crystal device using the liquid crystal composition with a good alignment characteristic, a good drive characteristic, and a high and stable contrast ratio.