申请人:Canon Kabushiki Kaisha
公开号:US05292453A1
公开(公告)日:1994-03-08
A ferroelectric chiral smectic liquid crystal composition, comprising: at least one optically active compound represented by the following formula (II): ##STR1## wherein R.sub.3 denotes a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent; X.sub.3 denotes a single bond, ##STR2## Z.sub.1 denotes a single bond or ##STR3## and m is 1-12; at least one compound represented by the following formula (III): ##STR4## wherein R.sub.4 and R.sub.5 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent, at lease one of R.sub.4 and R.sub.5 being optically active; X.sub.4 denotes a single bond, ##STR5## and X.sub.5 denotes a single bond, ##STR6## and at least one compound represented by the following formula (I) or (IV): ##STR7## wherein R.sub.1 and R.sub.2 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent of C.sub.1 -C.sub.12 alkoxy group; X.sub.1 and X.sub.2 respectively denote a single bond, point and non-selected ##STR8## wherein R.sub.6 and R.sub.7 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent; X.sub.6 and X.sub.7 respectively denote a single bond, ##STR9## Z.sub.2 denotes ##STR10## or a single bond; ##STR11## respectively denote ##STR12## denotes ##STR13## with the proviso that at least one of ##STR14## is ##STR15##
一种铁电手性液晶组合物,包括:至少一种由以下式子(II)表示的光学活性化合物:
##STR1##
其中R3表示具有1-18个碳原子的线性或支链烷基,能够具有取代基;X3表示单键,或
##STR2##
Z1表示单键或
##STR3##
m为1-12;至少一种由以下式子(III)表示的化合物:
##STR4##
其中R4和R5分别表示具有1-18个碳原子的线性或支链烷基,能够具有取代基,其中至少一个为光学活性基团;X4表示单键,或
##STR5##
X5表示单键,或
##STR6##
和至少一种由以下式子(I)或(IV)表示的化合物:
##STR7##
其中R1和R2分别表示具有1-18个碳原子的线性或支链烷基,能够具有C1-C12烷氧基的取代基;X1和X2分别表示单键,点和非选择性
##STR8##
其中R6和R7分别表示具有1-18个碳原子的线性或支链烷基,能够具有取代基;X6和X7分别表示单键,或
##STR9##
Z2表示##STR10##或单键;
##STR11##
分别表示##STR12##
##STR13##
但至少其中一个##STR14##是##STR15##。