Provided is a polar compound that has high chemical stability and high capability of aligning liquid crystal molecules, and has a large voltage holding ratio when used in a liquid crystal display device.
The compound represented by formula (1) is applied.
For example, R1 is alkyl having 1 to 15 carbons; rings A1 to A5 are 1,4-cyclohexylene or 1,4-phenylene; Z1 and Z5 are a single bond or alkylene having 1 to 10 carbons; a and b are 0 to 4, and a sum of a and b is 4 or less; d is 1 to 4; c and e are 0 to 4; P1 to P3 are a polymerizable group represented by formulas (P-1) to (P-5):
in which M1 to M3 are hydrogen or alkyl having 1 to 5 carbons; and R2 is a group represented by formulas (1a) to (1c):
in which Sp1 to Sp5 are a single bond or alkylene having 1 to 10 carbons; S1 is >CH-; S2 is >C<; and X1 is -OH.
本发明提供了一种极性化合物,它具有很高的
化学稳定性和很强的液晶分子排列能力,在液晶显示设备中使用时具有很大的电压保持率。
应用了式 (1) 所代表的化合物。
例如,R1 是具有 1 至 15 个碳原子的烷基;环 A1 至 A5 是 1,4-
环己烯或 1,4-亚苯基;Z1 和 Z5 是单键或具有 1 至 10 个碳原子的亚烷基;a 和 b 是 0 至 4,a 和 b 之和是 4 或更少;d 是 1 至 4;c 和 e 是 0 至 4;P1 至 P3 是式 (P-1) 至 (P-5) 所代表的可聚合基团:
其中 M1 至 M3 为氢或具有 1 至 5 个碳原子的烷基;以及 R2 为由式 (1a) 至 (1c) 所代表的基团:
其中 Sp1 至 Sp5 为单键或具有 1 至 10 个碳原子的亚烷基;S1 为 >CH-;S2 为 >C<;X1 为 -OH。