申请人:HITACHI, LTD.
公开号:EP0163229A2
公开(公告)日:1985-12-04
A ferroelectric liquid crystal composition comprising two or more liquid crystal compounds showing a cystal phase at a lower temperature side of ferroelectric chiral smectic C phase when cooled, for example, compounds of the formulae:
and/or
wherein R and R' are independently a substituent having a branched or straight-chain alkyl group therein;
are independently a divalent six-membered ring group; and Z is a divalent linkage group, shows ferroelectric chiral smectic C phase in a broad temperature range including room temper- , ature.
一种铁电液晶组合物,由两种或两种以上液晶化合物组成,冷却时在较低温度侧显示铁电手性共晶 C 相,例如,式中化合物:
和/或
其中 R 和 R'独立为具有支链或直链烷基的取代基;
独立地为二价六元环基;Z 为二价连接基团,在包括室温在内的宽温度范围内显示铁电手性 Smectic C 相。