Liquid crystal composition and liquid crystal display element comprising the same
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:EP0768361A1
公开(公告)日:1997-04-16
The invention presents an excellent liquid crystal display composition possessing a negative dielectric anisotropy, comprising one or more compounds selected from the group consisting of formulas I, II, III, IV and V,
where R1 is alkyl, alkoxyalkyl, mono- or difluoroalkyl, or alkenyl, with each group having 2 to 7 carbon atoms; h, i, j, and k denote 0 or 1 with proviso that i+j=1; m is 0, 1 or 2; a six-membered ring expressed by A, B, or C respectively represents any one of trans-1-sila-1,4-cyclohexylene, trans-4-sila-1,4-cyclohexylene, or trans-1,4-cyclohexylene group; L represents F; and L1 and L2 represent H or F; n is 0, 1 or 2; and R2 is H, R1 or OR1, in which at least one compound thereof contains trans-1-sila-1,4-cyclohexylene group or trans-4-sila-1,4-cyclohexylene group.
本发明提出了一种具有负电介电各向异性的优异液晶显示器组合物,该组合物由一种或多种选自式 I、II、III、IV 和 V 组的化合物组成、
其中,R1 是烷基、烷氧基烷基、单或二氟烷基或烯基,每个基团具有 2 至 7 个碳原子;h、i、j 和 k 表示 0 或 1,但 i+j=1 ;m 是 0、1 或 2;分别由 A、B 或 C 表示的六元环代表反式-1-硅杂-1,4-环己烯、反式-4-硅杂-1,4-环己烯或反式-1,4-环己烯基团中的任一个;L代表F;L1和L2代表H或F;n为0、1或2;R2为H、R1或OR1,其中至少一种化合物含有反式-1-西拉-1,4-环己烯基团或反式-4-西拉-1,4-环己烯基团。