申请人:Canon Kabushiki Kaisha
公开号:US05075031A1
公开(公告)日:1991-12-24
A mesomorphic compound represented by the formula: ##STR1## wherein R.sub.1 denotes an alkyl group having 1-16 carbon atoms; R.sub.2 denotes an alkyl group having 2-10 carbon atoms; X denotes a single bond or --O--; Y denotes --OCH.sub.2 --, ##STR2## Z denotes a single bond, ##STR3## respectively and independently denote ##STR4## k, l and n are respectively 0, 1 or 2 satisfying the relation of k+l+n=2 or 3; C* denotes an asymmetric carbon atom. The mesomorphic compound, when added as a component, provides a liquid crystal composition showing an improved field respective characteristic or is effective in preventing occurrence of a reverse domain.
一种由以下式子表示的中间相化合物:##STR1##
其中R1表示具有1-16个碳原子的烷基基团;R2表示具有2-10个碳原子的烷基基团;X表示单键或- O-;Y表示- OCH2-,##STR2## Z分别表示单键,##STR3##,并且独立地表示##STR4## k,l和n分别为0,1或2,满足k + l + n = 2或3;C *表示不对称碳原子。当作为组分添加时,该中间相化合物提供了一种显示改进的场效应特性或有效防止反向域发生的液晶组合物。