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    • 1. 发明申请
    • LIGHT MODULATION ELEMENT
    • 光调制元件
    • WO2017198586A1
    • 2017-11-23
    • PCT/EP2017/061560
    • 2017-05-15
    • MERCK PATENT GMBH
    • FIEBRANZ, BerndBEST, PeterKRUMWIEDE, MeikeSIEMIANOWSKI, Simon
    • G02F1/139G02F1/1337C09K19/20C09K19/04
    • A light-modulation element is disclosed which comprises a cholesteric liquid crystalline medium sandwiched between two opposing substrates, and an electrode arrangement for applying an electric field substantially perpendicular to the substrates. The cholesteric (chiral-nematic) liquid crystal exhibits the flexoelectric effect and is aligned in the uniformly lying helix (ULH) structure. One of the substrates is provided with a planar (i.e. homogeneous) alignment layer adjacent to the cholesteric liquid crystalline medium and the other substrate is provided with a homeotropic alignment layer. This arrangement provides for an intrinsically stable alignment which allows a high quality dark state to be achieved. The liquid crystal medium comprises at least one bimesogenic compound and at least one chiral compound. The light-modulation element can be used in various types of optical devices: displays, non-linear optical devices, and optical information storage devices.
    • 公开了一种光调制元件,其包括夹在两个相对基板之间的胆甾型液晶介质以及用于施加基本垂直于基板的电场的电极布置。 胆甾型(手性向列型)液晶显示出挠曲电效应并且以均匀位于螺旋(ULH)结构排列。 其中一个衬底提供有与胆甾型液晶介质相邻的平面(即均匀)取向层,而另一个衬底提供有垂直取向层。 这种布置提供了本质上稳定的对准,其允许实现高质量的黑暗状态。 液晶介质包含至少一种双液晶化合物和至少一种手性化合物。 光调制元件可用于各种类型的光学装置:显示器,非线性光学装置和光学信息存储装置。
    • 3. 发明申请
    • LIGHT MODULATION ELEMENT
    • 光调制元件
    • WO2017198635A1
    • 2017-11-23
    • PCT/EP2017/061654
    • 2017-05-16
    • MERCK PATENT GMBH
    • FIEBRANZ, BerndBEST, PeterKRUMWIEDE, MeikeSIEMIANOWSKI, Simon
    • G02F1/1337G02F1/139C09K19/00G02F1/137
    • The invention relates to a light modulation element comprising, preferably consisting of a cholesteric liquid crystalline medium sandwiched between two opposing substrates, an electrode arrangement, which is capable to allow the application of an electric field, which is substantially perpendicular to the main plane of substrate or the layer of the cholesteric liquid- crystalline medium, characterized in that one of the substrates is provided with a processed alignment layer adjacent to the cholesteric liquid crystalline medium and the other substrate is either provided with an unprocessed alignment layer adjacent to the cholesteric liquid crystalline medium or is not provided with an alignment layer. The invention is further related to a method of production of said light modulation element and to the use of said light modulation element in various types of optical and electro-optical devices, such as electro-optical displays, liquid crystal displays (LCDs), non-linear optic (NLO) devices, and optical information storage devices.
    • 本发明涉及一种光调制元件,其包括优选地由夹在两个相对衬底之间的胆甾型液晶介质组成的电极装置,该电极装置能够施加电场,该电场是 基本上垂直于衬底的主平面或胆甾型液晶介质层,其特征在于,其中一个衬底设置有与胆甾型液晶介质相邻的经处理的对准层,并且另一衬底设有未处理的 与胆甾醇型液晶介质相邻或不具有取向层的取向层。 本发明进一步涉及制造所述光调制元件的方法以及所述光调制元件在各种类型的光学和电光器件中的用途,例如电光显示器,液晶显示器(LCD),非液晶显示器 线性光学(NLO)设备和光学信息存储设备。