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    • 10. 发明授权
    • Broadband reflective polarizer
    • 宽带反射偏振器
    • US6099758A
    • 2000-08-08
    • US153997
    • 1998-09-16
    • Mark VerrallKim SlaneyJohn Philip ArgentDavid Coates
    • Mark VerrallKim SlaneyJohn Philip ArgentDavid Coates
    • G02B5/08C09K19/38C09K19/52G02B5/30G02F1/1335G02F1/13357G02F1/13363F21V9/14
    • C09K19/38G02B5/3016G02F1/133536G02F1/13362G02F1/13363G02F2001/133543
    • The invention relates to a broadband reflective polarizer that comprises a layer of a polymerized mesogenic material exhibiting a helically twisted molecular structure with planar alignment, said reflective polarizer being obtainable by a process wherein a mixture of a chiral polymerizable mesogenic material comprisinga) at least one achiral polymerizable mesogenic compound,b) at least one chiral compound that can in addition be polymerizable and/or mesogenic,c) a polymerization initiator,is coated on a substrate or between two substrates in form of a layer, aligned in a planar orientation so that the axis of the molecular helix extends transversely to the layer, and polymerized by exposure to heat or actinic radiation, and optionally the substrates are removed from the polymerized material, characterized in that said polymerizable material is coated and polymerized between two different substrates, and/or at least one of said substrates comprises a barrier layer on the surface adjacent to the layer of said polymerizable material, to a process of preparing such a broadband reflective polarizer and to a liquid crystal display comprising such a broadband reflective polarizer
    • 本发明涉及一种宽带反射偏振器,其包括呈现具有平面取向的螺旋扭曲分子结构的聚合介晶材料层,所述反射偏振器可通过以下方法获得:其中手性可聚合介晶材料的混合物包含a)至少一种 非手性可聚合介晶化合物,b)至少一种另外可聚合和/或介晶的手性化合物,c)聚合引发剂,以平面取向对齐的方式涂覆在基材上或两层基板之间, 分子螺旋线的轴线横向延伸,并且通过暴露于热或光化辐射而聚合,并且任选地从聚合材料中除去基底,其特征在于,所述可聚合材料在两个不同的基底之间被涂覆和聚合,并且 /或至少一个所述衬底包括在表面上的阻挡层 涉及到所述可聚合材料的层,制备这种宽带反射型偏振片的方法和包括这种宽带反射型偏振片的液晶显示器