Liquid crystal composition

摘要

A liquid crystal composition contains 60 to 80 parts by weight of liquid crystal compounds represented by the following general formulas (1)-(3): <IMAGE> (1) where X1 is CH3CH=CHCH2CH2- when Y1 is <IMAGE> CH3CH=CH- or CH2=CHCH2CH2- when Y1 is <IMAGE> and CH3CH=CHCH2CH2- when Y1 is rbon atoms when Y1 is <IMAGE> and alkyl group having 1 to 5 carbon atoms when Y1 is <IMAGE>3 or 4 carbon atoms, and <IMAGE> (3) where R2 is alkyl group having 1 to 5 carbon atoms, and R3 is alkoxy group having 1 to 5 carbon atoms; and 20 to 30 parts by weight of at least one liquid crystal compound represented by the following general formula: <IMAGE> (4) where X2 is CH3CH=CH- or CH3CH=CHCH2CH2-. The composition contains at least 70 parts by weight of the liquid crystal compounds represented by formulas (1), (2) and (4).