Liquid crystal compounds, liquid crystal compositions and liquid crystal display devices
申请人:HITACHI, LTD.
公开号:EP0118046A1
公开(公告)日:1984-09-12
The liquid-erystal compound of the present invention is characterized by having the following molecular structure:
(a) the molecular skeleton has two or more six-membered rings,
(b) the respective six-membered rings are bonded directly to each other,
(c) a carbon atom in each of the terminal six-membered rings is bonded directly to an acyclic terminal group,
(d) one of the acyclic terminal groups bonded to the carbon atom of the six-membered ring is an alkyl group or an alkoxycarbonyl-free group bonding through an alkylene group, and
(e) the other acyclic terminal group bonded to the carbon atom in the six-membered ring has a carbonyl group and a terminal alkoxyl group.
本发明的液晶化合物具有以下分子结构:
(a) 分子骨架有两个或多个六元环、
(b) 各六元环彼此直接键合、
(c) 每个六元环末端的一个碳原子直接与一个无环末端基团键合、
(d) 与六元环碳原子键合的一个无环末端基团是烷基或通过亚烷基键合的无烷氧基羰基,以及
(e) 与六元环碳原子结合的另一个无环末端基团具有一个羰基和一个末端烷氧基。