Mesomorphic compound, liquid crystal composition, liquid crystal device, display apparatus and display method
申请人:CANON KABUSHIKI KAISHA
公开号:EP0455219A1
公开(公告)日:1991-11-06
A mesomorphic compound represented by the following formula (I):
wherein R1 and R2 respectively denote an alkyl group having 1 - 16 carbon atoms optionally substituted; X1 and X3 respectively denote a single bond, -0-,
X2 denotes a single bond,
A1 denotes a single bond
A3 denotes
A2 denotes 9, 10-dihydro-2,7-phenanthrenediyl, 2,7-fluorenediyl or 2,7-fluorenonediyl; n is 0 or 1; and X4 and X5 respectively denote hydrogen, F, Cl, Br, -CH3, -CN or -CF3, with proviso that X1 is a single bond when A1 is a single bond.
由下式(I)表示的中间体化合物:
X2 表示单键、
A1 表示单键
A3 表示
A2 表示 9,10-二氢-2,7-菲二基、2,7-芴二基或 2,7-芴酮二基;n 为 0 或 1;X4 和 X5 分别表示氢、F、Cl、Br、-CH3、-CN 或 -CF3,但当 A1 为单键时,X1 为单键。