Mesomorphic compound for use in liquid crystal composition and liquid crystal device and display apparatus using same
申请人:CANON KABUSHIKI KAISHA
公开号:EP0462578A1
公开(公告)日:1991-12-27
A mesomorphic compound represented by the following formula [I]:
wherein R1 and R2 independently denote an alkyl group having 1-16 carbon atoms capable of having a substituent; Xi, X2, X3 and X4 independently denote a single bond, -0-,
A1, A2 and A3 independently denote
; X5 and X6 independently denote hydrogen atom, fluorine, chlorine, bromine, CH3, CN or CF3; n1 and n2 are 0 or 1, with provisos that (1) X2 cannot be a single bond when n1 is 0, (2) X3 cannot be a single bond when N2 is 1 and (3) at least one of X2 and X3 denotes
when both n1 and n2 is 0 and A2 denote
Mesomorphic compound for use in liquid crystal composition and liquid
申请人:Canon Kabushiki Kaisha
公开号:US05244596A1
公开(公告)日:1993-09-14
A mesomorphic compound represented by the following formula [I]: ##STR1## wherein R.sub.1 and R.sub.2 independently denote an alkyl group having 1-16 carbon atoms capable of having a substituent; X.sub.1, X.sub.2, X.sub.3 and X.sub.4 independently denote a single bond ##STR2## A.sub.1, A.sub.2 and A.sub.3 independently denote ##STR3## X.sub.5 and X.sub.6 independently denote hydrogen atom, fluorine, chlorine, bromine, CH.sub.3, CN or CF.sub.3 ; n.sub.1 and n.sub.2 are 0 or 1, with provisos that (1) X.sub.2 cannot be a single bond when n.sub.1 is 0, (2) X.sub.3 cannot be a single bond when N.sub.2 is 1 and (3) at least one of X.sub.2 and X.sub.3 denotes ##STR4## when both n.sub.1 and n.sub.2 is O and A.sub.2 denote ##STR5##