Liquid crystal compound and liquid crystal composition including the same
申请人:HITACHI, LTD.
公开号:EP0162437A2
公开(公告)日:1985-11-27
A liquid crystal compound of the formula:
wherein
R2 is preferably C7-14 alkyl;
X1 is -COO- or -OCO;
Y1 is
Y2 is
; and
Z is -N02 or -CN, shows a smectic phase, is large in positive dielectric anisotropy and can give a liquid crystal composition (5) suitable for use in a thermal address display device.