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    • 83. 发明授权
    • Electrooptical liquid crystal system
    • 电光液晶系统
    • US5376302A
    • 1994-12-27
    • US42762
    • 1993-04-06
    • David CoatesPatrick NolanShirley Marden
    • David CoatesPatrick NolanShirley Marden
    • C09K19/42C09K19/54G02F1/1334C09K19/52G02F1/13
    • G02F1/1334C09K19/42C09K19/544Y10T428/10
    • The invention relates to an electrooptical liquid crystal systemwhich between two electrode layers there is contained a liquid crystal mixture and a further optically transparent polymer medium,whose liquid crystal molecules have irregular orientation in the switched-off state,in which one of the refractive indices of the liquid crystal mixture is substantially the same as the refractive index of the medium n.sub.m and/or in which the quotient from the weight of the liquid crystal mixture and the weight of the optically transparent medium is 1.5 or more,which in one of the switching states has reduced transmission compared with the other state essentially independent of the polarization of the incident light, andwhose liquid crystal mixture contains at least one dielectrically neutral and at least one dielectrically positive liquid crystalline or monotropic compound, characterized in that the liquid crystalline mixture contains less than 15% by weight of one or more dielectrically positive liquid crystalline, enantiotropic or monotropic, two-ring compounds in order to lower the solubility of the liquid crystal mixture in the medium.
    • 本发明涉及一种电光学液晶系统,其在两个电极层之间包含液晶混合物和另外的光学透明聚合物介质,其液晶分子在关闭状态下具有不规则取向,其中折射率之一 的液晶混合物的重量基本上与介质nm的折射率相同,和/或液晶混合物的重量和光学透明介质的重量的商为1.5或更大,其中 开关状态与基本上独立于入射光的偏振的其他状态相比,其液晶混合物含有至少一种介电中性和至少一种介电性正的液晶或单离子化合物,其特征在于,液晶混合物 含有少于15重量%的一种或多种介电性的posi 为了降低液晶混合物在介质中的溶解度,可以使用液晶,对映体或单相,双环化合物。
    • 86. 发明授权
    • Co-ordinate addressing of smectic display cells
    • 协调处理近景显示单元
    • US4528562A
    • 1985-07-09
    • US526563
    • 1983-08-25
    • William A. CrosslandDavid CoatesPeter J. Ayliffe
    • William A. CrosslandDavid CoatesPeter J. Ayliffe
    • G02F1/133G02F1/137G09G3/20G09G3/36
    • G02F1/13781G02F1/13306G09G3/3629G09G2300/0486G09G2310/06G09G3/2018
    • A co-ordinate matrix addressing system is used to address a liquid crystal display cell containing a positive dielectric anisotropy smectic material. For this purpose one or more direct voltage pulses are applied across selected elemental volumes of the display to convert them from a focal-conic scattering state to a homeotropically aligned state. Prior to this all elements are electrically driven into the turbulent scattering state which relaxes into the focal-conic scattering state upon removal of the driving field. The driving field may also take the form of direct voltage pulses. Unselected elemental volumes may be refreshed to substantially their original level of focal-conic scattering by means of a suitable blanking potential applied to both selected and unselected elemental volumes which nevertheless leaves previously restored elemental volumes in the homeotropically aligned state.
    • 坐标矩阵寻址系统用于寻址含有正介电各向异性近晶材料的液晶显示单元。 为此目的,一个或多个直流电压脉冲施加在显示器的所选元素体积上,以将它们从聚焦圆锥散射状态转换为垂直对准状态。 在此之前,所有元件被电驱动到湍流散射状态,其在去除驱动场时松弛成聚焦锥形散射状态。 驱动场也可以采取直流电压脉冲的形式。 未选择的元素体积可以通过施加到所选择的和未选择的元素体积的适当的消隐电位而被刷新到基本上它们的焦点锥体散射的初始水平,然而这仍然留下先前恢复的沿垂直状态的元素体积。
    • 89. 发明申请
    • PROTECTION OF A CHOLESTERIC LIQUID CRYSTAL DISPLAY DEVICE
    • 保护液晶液晶显示器件
    • US20090279024A1
    • 2009-11-12
    • US12304308
    • 2007-05-17
    • David CoatesAnthony Orlando AlkinsAndrew David Pearson
    • David CoatesAnthony Orlando AlkinsAndrew David Pearson
    • G02F1/1335
    • G02F1/133509G02F1/13476G02F1/13718G02F2201/086
    • A cholesteric liquid crystal display device (24) has a protective sheet (40) or a stack of protective sheets adhered to the substrate (11) at the front of a stack of cells (10B, 10G, 10R) containing cholesteric liquid crystal material (19). The protective sheet is adhered by a layer of adhesive (40) which is either an adhesive curable by heat or an adhesive curable by light. The adhesive contains a UV blocking agent, for example, a compound based on benzophenone, having a property of reducing the transmission of ultra-violet light through the adhesive. The protective sheet (s) provides protection to the display device and may be made of glass or plastic. Adhering the protective sheet (s) with an adhesive provides the advantages of being much cheaper to implement than laminated glass and of allowing the adhesive to contain the UV blocking agent for UV protection of the cholesteric liquid crystal material.
    • 胆甾型液晶显示装置(24)具有在包含胆甾型液晶材料(10B,10G,10R)的电池堆(10B,10G,10R)的前面附着有保护片(40)或粘附到基板(11)的保护片的堆叠 19)。 保护片通过粘合剂(40)粘合,粘合剂层可以通过加热固化的粘合剂或可通过光固化的粘合剂。 粘合剂含有UV封闭剂,例如基于二苯甲酮的化合物,其具有通过粘合剂降低紫外线透射的性质。 保护片对显示装置提供保护,并且可以由玻璃或塑料制成。 用粘合剂粘合保护片具有实现比夹层玻璃便宜得多的优点,并且允许粘合剂含有用于胆甾醇型液晶材料的UV保护的UV阻挡剂。
    • 90. 发明授权
    • Multireactive polymerizable mesogenic compounds
    • 多功能可聚合介晶化合物
    • US07534474B2
    • 2009-05-19
    • US11517300
    • 2006-09-08
    • Louise FarrandDavid Coates
    • Louise FarrandDavid Coates
    • C09K19/38C09K19/30C09K19/32C09K19/34C09K19/20
    • C09K19/0403C09K19/322C09K19/3405C09K19/38C09K19/42C09K19/586C09K2019/0444C09K2019/0448C09K2019/3095Y10T428/10Y10T428/1005Y10T428/1036Y10T428/1041Y10T428/1059
    • The invention relates to multireactive polymerizable mesogenic compounds of formula I R1-MG-R2  I wherein R1, R2 and MG have the meaning given in claim 1, to a polymerizable mesogenic composition comprising at least two components, at least one which is a compound of formula I, to a linear or crosslinked polymer obtainable by polymerization of one or more compounds of formula I or of a polymerizable composition comprising one or more compounds of formula I and to the use of a compound of formula I, or a polymerizable composition or polymer obtainable thereof, in optical elements such as polarizers, optical retardation or compensation films, alignment layers, colour filters or holographic elements, in liquid crystal displays such as PDLC, polymer gel or polymer stabilized cholesteric texture (PSCT) displays, in adhesives, synthetic resins with anisotropic mechanical properties, cosmetics, diagnostics or liquid crystal pigments, for decorative and security applications, and for nonlinear optics or optical information storage.
    • 本发明涉及式I的多官能可聚合介晶化合物<?in-line-formula description =“In-line Formulas”end =“lead”?> R1-MG-R2 I <?in-line-formula description =“In 其中R 1,R 2和MG具有权利要求1中给出的含义,涉及包含至少两种组分(至少一种是式I化合物)的可聚合介晶组合物,其为线性 或可通过一种或多种式I化合物或包含一种或多种式I化合物的可聚合组合物聚合获得的交联聚合物,或其可用于式I化合物或其可获得的可聚合组合物或聚合物的光学元件 例如PDLC,聚合物凝胶或聚合物稳定的胆甾醇结构(PSCT)显示器等液晶显示器中的偏振器,光学延迟或补偿膜,取向层,滤色器或全息元件,粘合剂,具有各向异性机械的合成树脂 性能,化妆品,诊断或液晶颜料,用于装饰和安全应用,以及非线性光学或光学信息存储。