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    • 6. 发明授权
    • Polarizing plate
    • 偏光板
    • US07662446B2
    • 2010-02-16
    • US10497487
    • 2002-12-24
    • Kaori SekiTadashi AkamatsuZemin ShiHiroyuki Torisu
    • Kaori SekiTadashi AkamatsuZemin ShiHiroyuki Torisu
    • G02F1/1335
    • G02B5/3033G02B1/105G02B1/14Y10T428/105Y10T428/1077
    • A polarizing plate has a polarizer and a protective film formed on at least one surface of the polarizer. The protective film is formed by curing an energy ray-curable composition that contains at least one of a first energy ray-polymerizing compound having a bisphenol residue, a second energy ray-polymerizing compound having a neopentylglycol group, a third energy ray-polymerizing compound having a trimethylolpropane group, and a fourth energy ray-polymerizing compound having a pentaerythritol group. In the polarizing plate, though the protective film is thin, the polarizer is protected from the influence of external moisture, etc., and therefore its polarizability is kept good even in high-temperature high-humidity environments.
    • 偏振片具有偏振器和形成在偏振器的至少一个表面上的保护膜。 保护膜是通过固化含有具有双酚残基的第一能量射线聚合化合物,具有新戊二醇基的第二能量射线聚合化合物,第三能量射线聚合化合物中的至少一种而形成的能量射线固化性组合物 具有三羟甲基丙烷基和具有季戊四醇基的第四能量射线聚合化合物。 在偏光板中,虽然保护膜薄,但是防止偏振器受到外部湿度等的影响,因此即使在高温高湿环境下也能保持良好的极化性。
    • 7. 发明申请
    • Polarizing Plate
    • 偏光板
    • US20090269514A1
    • 2009-10-29
    • US11887725
    • 2005-04-14
    • Kaori SekiTadashi AkamatsuZemin Shi
    • Kaori SekiTadashi AkamatsuZemin Shi
    • C09K19/52
    • G02B5/3025G02B1/105G02B1/14G02F1/133528G02F2201/50Y10T428/1041
    • A polarizing plate is provided in which adhesion properties between a polarizer and a protection film are improved and in which the optical properties of the polarizer are stable under the influence of moisture and the like. Specifically, in polarizing plates 4 and 12, protection films 3 and 11 are formed on at least one side of polarizers 2 and 10, respectively, by curing an energy ray-curable composition. The energy ray-curable composition contains (1) an energy ray-polymerizable compound having a bridged hydrocarbon group, a bisphenol group, a neopentyl glycol group, a trimethylolpropane group, or a pentaerythritol group and (2) a hydrolysate of a silane-based coupling agent. At least one of the polarizing plates 4 and 12 is provided on at least one side of a liquid crystal panel 1, whereby a liquid crystal device 9 is constituted.
    • 提供了一种偏振片,其中偏振片和保护膜之间的粘合性能得到改善,并且偏振片的光学特性在水分等的影响下是稳定的。 具体地说,在偏光板4和12中,通过固化能量射线固化性组合物,分别在偏振片2和10的至少一侧上形成保护膜3和11。 能量射线固化性组合物含有(1)具有桥连烃基的能量射线聚合性化合物,双酚基,新戊二醇基,三羟甲基丙烷基或季戊四醇基,和(2)硅烷系 偶联剂。 至少一个偏振片4和12设置在液晶面板1的至少一侧上,由此构成液晶装置9。
    • 10. 发明申请
    • Composition for forming liquid crystal film, optically anisotropic film, and production method thereof
    • 用于形成液晶膜的组合物,光学各向异性膜及其制备方法
    • US20070114491A1
    • 2007-05-24
    • US10581747
    • 2004-08-31
    • Zemin ShiTadashi AkamatsuMichio SatoTsuneo Hanada
    • Zemin ShiTadashi AkamatsuMichio SatoTsuneo Hanada
    • C09K19/52C09K19/54C09K19/38
    • C09K19/3852C09K19/406C09K19/408C09K2019/328C09K2219/03Y10T428/10
    • A simple technique for introducing a hybrid alignment or a homeotropic (vertical) alignment into liquid crystal films, which, by their nature, tend to have a horizontal alignment of liquid crystal molecules. The technique does not require special alignment films. A liquid crystal composition for forming a liquid crystal film contains a polymerizable liquid crystal compound and a hydrolysate of an alkoxysilane compound. The hydrolysate of the alkoxysilane compound contains a siloxane oligomer of which degree of polymerization is from 2 to 25. Furthermore, the alkoxysilane compound is a trialkoxysilane compound having a functional group. This liquid crystal film composition can be produced by hydrolyzing an alkoxysilane compound to obtain a hydrolysate and then uniformly mixing the hydrolysate with a polymerizable liquid crystal compound. Alternatively, it can be obtained by uniformly mixing the alkoxysilane compound with the polymerizable liquid crystal compound and subsequently hydrolyzing the alkoxysilane compound in the mixture. One mole of the alkoxysilane compound is preferably hydrolyzed with 0.1d to 2.0d mol of water, given that the number of alkoxyl groups in a molecule of the alkoxysilane compound is d. An optically anisotropic film can be obtained by applying the liquid crystal film composition to a base film, causing the liquid crystal molecules in the composition to align in a nematic alignment, and curing the composition. The alignment of the liquid crystal molecules in the film is preferably a nematic hybrid or nematic homeotropic (vertical) alignment.
    • 用于将混合取向或垂直(垂直)取向引入液晶膜的简单技术,其本质上倾向于具有液晶分子的水平取向。 该技术不需要特殊的取向膜。 用于形成液晶膜的液晶组合物含有可聚合液晶化合物和烷氧基硅烷化合物的水解产物。 烷氧基硅烷化合物的水解物含有聚合度为2〜25的硅氧烷低聚物。此外,烷氧基硅烷化合物为具有官能团的三烷氧基硅烷化合物。 该液晶膜组合物可以通过水解烷氧基硅烷化合物得到水解产物,然后将水解产物与可聚合液晶化合物均匀混合来制备。 或者,可以通过将烷氧基硅烷化合物与可聚合液晶化合物均匀混合,然后水解该混合物中的烷氧基硅烷化合物而获得。 考虑到烷氧基硅烷化合物的分子中的烷氧基数为d,一摩尔烷氧基硅烷化合物优选用0.1d至2.0dmol的水进行水解。 可以通过将液晶膜组合物施加到基膜上,使组合物中的液晶分子以向列取向取向并固化该组合物来获得光学各向异性膜。 膜中液晶分子的取向优选为向列混合或向列垂面(垂直)取向。