申请人:Nissan Chemical Corporation
公开号:EP3422092A1
公开(公告)日:2019-01-02
To provide a liquid crystal display device having a high level of liquid crystal vertical alignment, good optical properties, high adhesion between a liquid crystal layer and a liquid crystal alignment film, and being capable of maintaining these characteristics even in high temperature-high humidity or light-illuminated environment. This liquid crystal display device has a liquid crystal layer made of a cured product formed by irradiating a liquid crystal composition disposed between a pair of substrates provided with electrodes with ultraviolet light from an ultraviolet irradiation apparatus and at least one of the substrates being provided with a liquid crystal alignment film to vertically align liquid crystal, wherein the liquid crystal composition comprises a curable resin, a bifunctional monomer, a compound of the following formula [1-1a], a compound of the following formula [2-1a] and a monomer having at least one polar group selected from the group consisting of a hydroxy group, a carboxy group and a phosphoric acid group, and the liquid crystal alignment film is obtainable from a liquid crystal alignment treating agent containing a polymer having a side chain structure of the following formula [4-1a] or formula [4-2a],
wherein T1 is the following formula [1-a] to formula [1-e], T2 is a single bond, etc., T3 is a benzene ring, etc., T4 is a single bond, etc., T5 is a benzene ring, etc., T6 is a C1-18 alkyl group, etc., and nT is from 0 to 4,
wherein TA is a C1-5 alkyl group,
wherein S1 is the following formula [2-a] to formula [2-e], S2 is a C2-18 linear or branched alkylene group, etc., and nS is from 1 to 4),
wherein SA and SC are each a single bond, etc., and SB is a hydrogen atom, etc.,
wherein X1 and X3 are each a single bond, etc., X2 is a single bond, etc., X4 is a benzene ring, etc., X5 is a benzene ring, etc., X6 is a C1-18 alkyl group, etc., and n is an integer of from 0 to 4,
-X7-XB [4-2a]
wherein X7 is a single bond, etc., and X8 is a C8-18 alkyl group, etc.
提供一种液晶显示装置,该装置具有高水平的液晶垂直排列、良好的光学特性、液晶层与液晶排列膜之间的高粘附性,并且即使在高温高湿或光照环境下也能保持这些特性。这种液晶显示设备具有液晶层,该液晶层由固化产品制成,固化产品是通过紫外线照射装置用紫外线照射放置在一对带有电极的基板之间的液晶组合物而形成的,至少其中一个基板上带有液晶排列膜,以垂直排列液晶,其中液晶组合物包括可固化树脂、双官能团单体、下式[1-1a]化合物、下式[2-1a]化合物和具有至少一个从羟基、羧基和磷酸基组成的组中选出的极性基团的单体,而液晶配向膜可从含有具有下式[4-1a]或式[4-2a]侧链结构的聚合物的液晶配向处理剂中获得、
其中 T1 为下式[1-a]至式[1-e],T2 为单键等,T3 为苯环等,T4 为单键等,T5 为苯环等,T6 为 C1-18 烷基等,nT 为 0 至 4、
其中 TA 是 C1-5 烷基、
其中 S1 为下式[2-a]至式[2-e],S2 为 C2-18 直链或支链亚烷基等,nS 为 1 至 4)、
其中 SA 和 SC 各为单键等,SB 为氢原子等、
其中 X1 和 X3 各自为单键等,X2 为单键等,X4 为苯环等,X5 为苯环等,X6 为 C1-18 烷基等,n 为 0 至 4 的整数、
-X7-XB[4-2a]。
其中 X7 是单键等,X8 是 C8-18 烷基等。