Ferroelectric liquid crystal composition and liquid crystal device using the same
申请人:SHARP KABUSHIKI KAISHA
公开号:EP0495686A2
公开(公告)日:1992-07-22
A ferroelectric liquid crystal composition including : at least one optically active compound of the formula (I) :
where R1 and R2 are, the same or different, a substituted or unsubstituted straight or branched chain alkyl group having 1 to 15 carbon atoms, k represents an integer of 0 or 1, and * represents an asymmetric carbon atom ; and at least one compound selected from the group consisting of: compounds of the formula (II) :
where R3 and R4 are a straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms,
each represent
X represents -O-, -CO- or a single bond, m and n are independently an integer of 0 or 1 ; compounds of the formula (III) :
where R5 and R6 are, the same or different, a straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms, and p is an integer of 0 or 1 ; said ferroelectric liquid crystal composition exhibiting at least nematic phase, smectic A phase and smectic C phase.
一种铁电液晶组合物,包括: 至少一种式 (I) 的光学活性化合物:
其中 R1 和 R2 相同或不同,是具有 1 至 15 个碳原子的取代或未取代的直链或支链烷基,k 代表 0 或 1 的整数,且 * 代表不对称碳原子;以及至少一种选自由以下组成的化合物: 式 (II) :
其中 R3 和 R4 是具有 1-15 个碳原子的直链或支链烷基或烷氧基、
各代表
X 代表 -O-、-CO- 或单键,m 和 n 独立地为 0 或 1 的整数; 式 (III) :
其中 R5 和 R6 相同或不同,均为具有 1-15 个碳原子的直链或支链烷基或烷氧基,且 p 为 0 或 1 的整数;所述铁电液晶组合物至少表现出向列相、共晶 A 相和共晶 C 相。