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    • 61. 发明授权
    • Paper white PDLC system
    • 纸白色PDLC系统
    • US5604612A
    • 1997-02-18
    • US387850
    • 1995-02-24
    • David CoatesPatrick NolanEwald Ginter
    • David CoatesPatrick NolanEwald Ginter
    • G02F1/137C09K19/02C09K19/54G02F1/1333G02F1/1334G02F1/1335
    • G02F1/1334C09K19/544
    • The invention relates to a paper white PDLC system which between 2 electrode layers contains a PDLC film comprising a liquid crystal mixture forming microdroplets in an optically isotropic, transparent polymer matrix, in which one of the refractive indices of the liquid crystal mixture is matched to the refractive index of the polymer matrix n.sub.M, the transmission of which can be varied by applying an electrical voltage characterized in that the PDLC film exhibits the following properties:.vertline.n-n.sub.M .vertline..gtoreq.0.05wherein n is the mean refractive index of the liquid crystal mixture defined vian.sup.2 =1/3(m.sub.e.sup.2 +2n.sub.o.sup.2)mean droplet diameter.ltoreq.2 .mu.mthickness of PDLC film 5 .mu.m.ltoreq.d.ltoreq.75 .mu.mdegree of backscatter.gtoreq.20%
    • PCT No.PCT / EP93 / 02145 Sec。 371日期:1995年2月24日 102(e)日期1995年2月24日PCT提交1993年8月12日PCT公布。 出版物WO94 / 04958 日期:1994年3月3日本发明涉及一种白色PDLC系统,其在2个电极层之间包含PDLC膜,该PDLC膜包含在光学各向同性的透明聚合物基质中形成微滴的液晶混合物,其中液晶的折射率之一 混合物与聚合物基质nM的折射率匹配,其透过率可以通过施加电压而变化,其特征在于PDLC膜具有以下性质:| + E,ovs + + - 0.05,其中+ E,ovs n + EE是通过+ E定义的液晶混合物的平均折射率,ovs n + EE 2 = + E,fra 1/3 + EE(me2 + 2no2)平均液滴直径< 2μm厚度的PDLC膜5微米d =75μm反向散射度/ 20%
    • 62. 发明授权
    • Electrooptical liquid crystal system
    • 电光液晶系统
    • US5323251A
    • 1994-06-21
    • US960469
    • 1992-12-16
    • David CoatesPatrick Nolan
    • David CoatesPatrick Nolan
    • C09K19/34C09K19/38C09K19/54G02F1/13G02F1/1333
    • C09K19/544
    • An electrooptical systemwhich between 2 electrode layers contains a PDLC film comprising a liquid crystal mixture forming microdroplets in an optically isotropic, transparent polymer matrix,in which one of the electrode layers forms an active matrix having nonlinear addressing elements integrated with the image point, which the other electrode layer forms the counter electrode,in which one of the refractive indices of the liquid crystal mixture is matched to the refractive index of the polymer matrix,the transmission of which can be varied depending on an applied electrical voltage, essentially independent of the polarization of the incident light.
    • PCT No.PCT / EP92 / 02461 Sec。 371日期:1992年12月16日 102(e)1992年12月16日的PCT日期1992年12月28日PCT。在2个电极层之间包含PDLC膜的电光学系统,其包含在光学各向同性的透明聚合物基质中形成微滴的液晶混合物, 电极层形成具有与图像点集成的非线性寻址元件的有源矩阵,其中另一个电极层形成对电极,其中液晶混合物的折射率之一与聚合物基体的折射率相匹配, 其传输可以根据施加的电压而变化,基本上与入射光的极化无关。
    • 66. 发明授权
    • Multireactive polymerizable mesogenic compounds
    • 多功能可聚合介晶化合物
    • US07125500B2
    • 2006-10-24
    • US11059551
    • 2005-02-17
    • Louise FarrandDavid Coates
    • Louise FarrandDavid Coates
    • C09K19/38C09K19/20C09K19/12C09K19/30C09K19/52
    • 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”?> R 1 -MG-R 2 其中R 1,R 2,和M 2具有在线公式描述=“In-line formula”end =“tail” 权利要求1中给出的含义涉及一种可聚合的介晶组合物,其包含至少两种组分,至少一种是式I化合物,其可通过一种或多种式I化合物的聚合或可聚合的 组合物,其包含一种或多种式I化合物,以及在光学元件如偏振器,光学延迟或补偿膜,取向层,滤色器或全息元件中使用式I化合物或其可获得的可聚合组合物或聚合物 在诸如PDLC,聚合物凝胶或聚合物稳定的胆甾醇结构(PSCT)显示器的液晶显示器中,在粘合剂中, 具有各向异性力学性能的合成树脂,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。
    • 67. 发明申请
    • Batteryless display apparatus
    • 无电池显示装置
    • US20060182898A1
    • 2006-08-17
    • US11335844
    • 2006-01-20
    • Amir Ben-ShalomDavid Coates
    • Amir Ben-ShalomDavid Coates
    • G02F1/1333C09K19/02
    • G02F1/13718Y10T428/10Y10T428/1036
    • A display apparatus includes a cholesteric liquid crystal display device comprising a layer of cholesteric liquid crystal material contained between two substrates, each substrate carrying an electrode layer so that the layer of cholesteric liquid crystal material is interposed between the electrode layers. A piezoelectric element is electrically connected to the electrode layers of the cholesteric liquid crystal display device. The piezoelectric element is capable of being manually activated to generate a drive signal which is sufficient to switch the layer of cholesteric liquid crystal material from the planar state to the focal conic state. The substrates are arranged to allow the layer of cholesteric liquid crystal material to be sheared to switch the layer of cholesteric liquid crystal material from the focal conic state to the planar state by manual compression of the cholesteric liquid crystal display device. Thus the display device can be switched without the need for a battery or other power source.
    • 显示装置包括胆甾醇型液晶显示装置,其包括在两个基板之间包含的胆甾型液晶材料层,每个基板承载电极层,使得胆甾醇型液晶材料层插入在电极层之间。 压电元件电连接到胆甾型液晶显示装置的电极层。 压电元件能够被手动激活以产生足以将胆甾醇型液晶材料层从平面状态切换到焦点锥形状态的驱动信号。 基板被布置成允许胆甾型液晶材料层被剪切,以通过胆甾型液晶显示装置的手动压缩将胆甾型液晶材料层从焦点锥形状态切换到平面状态。 因此,可以切换显示装置而无需电池或其他电源。