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    Materials for aligning liquid crystals
    5.
    发明授权
    Materials for aligning liquid crystals 失效
    液晶校准材料

    公开(公告)号：US5965691A

    公开(公告)日：1999-10-12

    申请号：US886560

    申请日：1997-07-01

    申请人： Wayne M. Gibbons ,  Paul J. Shannon ,  Shao-Tang Sun

    发明人： Wayne M. Gibbons ,  Paul J. Shannon ,  Shao-Tang Sun

    IPC分类号： C08G73/10 ,  G02F1/1337 ,  C08G69/26

    CPC分类号： C08G73/1042 ,  C08G73/10 ,  C08G73/1039 ,  C08G73/1085 ,  G02F1/133723 ,  G02F1/133753 ,  G02F1/133788 ,  G02F2001/133742 ,  Y10S359/90 ,  Y10T428/1005 ,  Y10T428/1018 ,  Y10T428/1023 ,  Y10T428/31721

    摘要： A process for aligning liquid crystals adjacent to a surface of an optical alignment layer comprising: exposing at least one optical alignment layer, comprising anisotropically absorbing molecules, to polarized light; the polarized light having a wavelength within the absorption band of said anisotropically absorbing molecules; wherein the exposed anisotropically absorbing molecules induce alignment of a liquid crystal medium at an angle + and - with respect to the direction of the polarization of the incident light beam and along the surface of the optical alignment layer; and applying a liquid crystal medium to said optical alignment layer; wherein said anisotropically absorbing molecules consist essentially of diaryl ketones, is described. The invention also is directed to a liquid crystal optical storage medium, a liquid crystal display element, and a liquid crystal diffractive optical element made by the process of the invention and to novel polyimide compositions that are useful as optical alignment layers in the process of the invention.

    摘要翻译： 一种用于使与液晶相邻的光学取向层的表面对准的方法，包括：将至少一个包括各向异性吸收分子的光学取向层暴露于偏振光; 所述偏振光具有在所述各向异性吸收分子的吸收带内的波长; 其中所述暴露的各向异性吸收分子相对于所述入射光束的偏振方向和沿着所述光学取向层的表面以+和 - 的角度引起液晶介质的对准; 以及向所述光取向层施加液晶介质; 其中所述的各向异性吸收分子基本上由二芳基酮组成。 本发明还涉及通过本发明的方法制造的液晶光学存储介质，液晶显示元件和液晶衍射光学元件，以及在该方法中可用作光学取向层的新型聚酰亚胺组合物 发明。

    Liquid crystal optical storage medium with gray scale
    7.
    发明授权
    Liquid crystal optical storage medium with gray scale 失效
    具有灰度级的液晶光存储介质

    公开(公告)号：US5846452A

    公开(公告)日：1998-12-08

    申请号：US417610

    申请日：1995-04-06

    申请人： Wayne M. Gibbons ,  Scott T. Schnelle ,  Paul J. Shannon ,  Shao-Tang Sun

    发明人： Wayne M. Gibbons ,  Scott T. Schnelle ,  Paul J. Shannon ,  Shao-Tang Sun

    IPC分类号： G02F1/13 ,  C08F20/30 ,  C08F20/36 ,  C09K19/38 ,  G02F1/1337 ,  G11B7/0055 ,  G11B7/24 ,  G11B7/25 ,  C09K19/56

    CPC分类号： G11B7/00555 ,  G02F1/133753 ,  G11B7/25 ,  G02F1/133788 ,  Y10T428/1059

    摘要： An optical storage medium with gray scale capability comprising: a plurality of facing substrates in series; alignment layers disposed on one or both sides of the substrates to give alignment layer pair(s) wherein at least one of the alignment layers of each of the alignment layer pair(s) is an optical alignment layer, and wherein the optical alignment layer(s) comprise anisotropically absorbing molecules or moieties; liquid crystal layers disposed between the alignment layer pair(s); wherein, each of the liquid crystal layer(s) comprises three or more alignment regions having three or more different alignment states; and, wherein the different alignment states are controlled by exposure of optical alignment layer(s) with polarized light of a wavelength or wavelengths within the absorption band of the anisotropically absorbing molecules or moieties therein, is described. The invention is also directed to compact disc, erasable compact discs, photographic storage devices, and storage displays.

    摘要翻译： 一种具有灰度能力的光学存储介质，包括：串联的多个相对的基板; 对准层设置在基板的一侧或两侧以提供取向层对，其中每个取向层对的至少一个取向层是光学取向层，并且其中光学取向层（ s）包含各向异性吸收分子或部分; 设置在取向层对之间的液晶层; 其中，每个液晶层包括具有三个或更多个不同取向状态的三个或更多个取向区域; 并且其中通过用各向异性吸收分子或其部分的吸收带内的波长或波长的偏振光的光学取向层的曝光来控制不同的取向状态。 本发明还涉及光盘，可擦除光盘，摄影存储设备和存储显示器。