Liquid crystal compositions which comprise at least one liquid crystalline compound having an optically active y-lactone ring of the formula (A):
wherein R1 is a group consisting of
n and e are each independently 0 or 1, R3 is an alkyl group having 1 to 15 carbon atoms, X and Y are each independently a group consisting of a hydrogen atom, a halogen atom or a cyano group, R2 is a group of the formula: -(CO)m-R4 wherein m is 0 or 1 and R4 is a hydrogen atom or an alkyl group having 1 to 15 carbon atoms and a chiral or non-chiral liquid crystal, and a use thereof as an element for opto-electronics devices.
液晶组合物,其中包含至少一种具有式(A)光学活性 y-内酯环的液晶化合物:
其中 R1 是由以下各项组成的基团
n 和 e 各自独立地为 0 或 1,R3 是具有 1 至 15 个碳原子的烷基,X 和 Y 各自独立地为由氢原子、卤素原子或
氰基组成的基团,R2 是式中的基团:-(CO)m-R4,其中 m 为 0 或 1,R4 为氢原子或具有 1 至 15 个碳原子的烷基。