申请人:Chisso Corporation
公开号:US04737313A1
公开(公告)日:1988-04-12
Novel ferroelectric liquid crystals exhibiting a chiral smectic C phase and liquid crystal compositions containing the same are provided, which liquid crystals are substituted biphenyl esters expressed by the general formula ##STR1## wherein R.sub.1 * represents an optically active alkyl group of 4 to 18 carbon atoms; ##STR2## represents ##STR3## or ##STR4## Z represents R.sub.2, R.sub.2 CO or R.sub.2 COO wherein R.sub.2 represents an alkyl group or an alkoxy group each of 1 to 18 carbon atoms; and X and Y each represent hydrogen atom (H), bromine atom (Br), chlorine atom (Cl), fluorine atom (F) or cyano group (CN), and either one of X or Y is always hydrogen atom.
提供了一种展示手性液晶C相的新型铁电液晶以及含有该液晶的液晶组合物,该液晶是由一般公式表示的取代联苯酯:##STR1## 其中R.sub.1*表示4至18个碳原子的光学活性烷基;##STR2## 表示##STR3## 或##STR4## Z表示R.sub.2、R.sub.2 CO或R.sub.2 COO,其中R.sub.2表示1至18个碳原子的烷基或烷氧基;X和Y分别表示氢原子(H)、溴原子(Br)、氯原子(Cl)、氟原子(F)或氰基(CN),其中X和Y中的其中一个始终是氢原子。