A ferroelectric chiral smectic liquid crystal composition, comprising: at least one optically active compound represented by the following formula (II):
wherein R3 denotes a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent; X3 denotes a single bond, -O- or
Z1 denotes a single bond or
or
and m is 1 - 12; at least one compound represented by the following formula (III):
wherein R4 and Rs respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent, at lease one of R4 and Rs being optically active; X4 denotes a single bond,
and X5 denotes a single bond,
and at least one compound represented by the following formula (I) or (IV):
wherein R, and R2 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent of C1 - C12 alkoxy group; X, and X2 respectively denote a single bond,
wherein R6 and R7 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent; X6 and X7 respectively denote a single bond,
Z2 denotes
-CH20-, -OCH2- or a single bond;respectively denote
denotes
with proviso that at least one of
一种
铁电手性谱
液晶组合物,包括: 至少一种由下式 (II) 代表的光学活性化合物:
其中,R3 表示具有 1 - 18 个
碳原子的直链或支链烷基,可具有取代基; X3 表示单键、-O-或
Z1 表示单键或
或
m为1-12;至少一种由下式(III)代表的化合物:
其中 R4 和 Rs 分别表示具有 1-18 个
碳原子的直链或支链烷基,可具有取代基,R4 和 Rs 中至少有一个具有光学活性;X4 表示单键、
和 X5 表示单键、
以及至少一种由下式(I)或(IV)代表的化合物:
其中 R 和 R2 分别表示具有 1 - 18 个
碳原子的直链或支链烷基,可具有 C1 - C12 烷
氧基的取代基;X 和 X2 分别表示单键、
其中 R6 和 R7 分别表示具有 1 - 18 个
碳原子并可具有取代基的直链或支链烷基;X6 和 X7 分别表示单键、
Z2 表示
-CH20-、-OCH2- 或单键;分别表示
表示
但至少有一个