申请人:JNC Corporation
公开号:EP2774968A1
公开(公告)日:2014-09-10
A liquid crystal medium having an optically isotropic liquid crystal phase is described, which has stability to heat, light and so on, a broad temperature range of liquid crystal phase, a large optical anisotropy and a large dielectric anisotropy. A liquid crystal composition is described, which includes an achiral component T and a chiral dopant and exhibits an optically isotropic liquid crystal phase. The achiral component T contains, as its first component, at least one compound selected from compounds represented by formula (1),
wherein R1 is C1-20 alkyl, the rings A1 to A6 are 1,4-phenylene, Z1 to Z7 are single bonds, Y1 and Y2 are fluorine; X1 is halogen, and i, j, k, m, n, p and q are independently 0 or 1.
描述了一种具有光学各向同性液晶相的液晶介质,它对热、光等具有稳定性,液晶相温度范围宽,光学各向异性大,介电各向异性大。描述了一种液晶组合物,它包括非手性成分 T 和手性掺杂剂,并呈现出光学各向同性的液晶相。非手性组分 T 包含至少一种选自式 (1) 所示化合物的化合物,作为其第一组分、
其中 R1 是 C1-20 烷基,环 A1 至 A6 是 1,4-亚苯基,Z1 至 Z7 是单键,Y1 和 Y2 是氟;X1 是卤素,i、j、k、m、n、p 和 q 独立地为 0 或 1。