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    Liquid crystal alignment structures and optical devices containing same
    25.
    发明授权
    Liquid crystal alignment structures and optical devices containing same 失效

    公开(公告)号：US06524665B2

    公开(公告)日：2003-02-25

    申请号：US10132774

    申请日：2002-04-25

    申请人： Hassan Sahouani ,  Kim M. Vogel ,  Marc D. Radcliffe

    发明人： Hassan Sahouani ,  Kim M. Vogel ,  Marc D. Radcliffe

    IPC分类号： G02F11337

    CPC分类号： G02F1/133711 ,  G02F1/133528 ,  G02F2001/133726 ,  Y10T428/1005

    摘要： An alignment structure useful in a liquid crystal display device comprising a substrate having disposed thereon an oriented film of a lyotropic nematic liquid crystalline material. Particularly useful lyotropic materials include a class of nematic liquid crystalline compounds known as chromonics. The substrates can be made by coating the lyotropic liquid crystal material onto the substrate to provide an oriented film of the lyotropic material. The alignment structure can also include one or more polarizing dyes or other additives and can thus be made to perform polarizing, retarding and/or color filtering functions in addition to alignment and orientation functions. Optical devices containing such alignment structures and methods of making such devices are also described.

    Optical bodies containing cholesteric liquid crystal material and methods of manufacture
    29.
    发明授权
    Optical bodies containing cholesteric liquid crystal material and methods of manufacture 有权
    含有胆固醇液晶材料的光学体及其制造方法

    公开(公告)号：US07277141B2

    公开(公告)日：2007-10-02

    申请号：US11141578

    申请日：2005-05-31

    申请人： Richard J. Pokorny ,  Marc D. Radcliffe ,  Philip E. Watson ,  Christopher C. Bowley ,  Ikuko Ebihara

    发明人： Richard J. Pokorny ,  Marc D. Radcliffe ,  Philip E. Watson ,  Christopher C. Bowley ,  Ikuko Ebihara

    IPC分类号： G02F1/1335 ,  G09K19/02 ,  G02B5/30

    CPC分类号： G02B5/3016

    摘要： An optical body includes a substrate and a cholesteric liquid crystal layer disposed on the substrate. The cholesteric liquid crystal layer has a non-uniform pitch along a thickness direction of the layer and comprises a crosslinked polymer material that substantially fixes the cholesteric liquid crystal layer. The crosslinking hinders diffusion of cholesteric liquid crystal material within the cholesteric liquid crystal layer. In other methods of making an optical body, a reservoir of chiral material is provided during the process over a first cholesteric liquid crystal layer to diffuse into the layer and provide a non-uniform pitch. Alternatively, two coating compositions can be disposed on a substrate where the material of the first coating composition is not substantially soluble in the second coating composition.

    摘要翻译： 光学体包括衬底和设置在衬底上的胆甾型液晶层。 胆甾型液晶层沿着该层的厚度方向具有不均匀的间距，并且包括基本上固定胆甾醇型液晶层的交联聚合物材料。 交联阻碍胆甾型液晶材料在胆甾型液晶层内的扩散。 在制造光学体的其它方法中，在第一胆甾醇型液晶层的过程中提供手性材料的储存器以扩散到该层中并提供不均匀的间距。 或者，两个涂料组合物可以设置在基材上，其中第一涂料组合物的材料基本上不溶于第二涂料组合物。