Structurally supported LCD media
    111.
    发明授权
    Structurally supported LCD media 失效
    结构支持液晶媒体

    公开(公告)号:US07495718B2

    公开(公告)日:2009-02-24

    申请号:US10575089

    申请日:2004-10-10

    IPC分类号: G02F1/1347

    摘要: A structurally supported LCD media comprising: an initial structural layer; a plurality of addressable layers, each of which having predetermined optical properties, and the layers have LC there-between and have narrow conductive pathways on opposing faces which respectively address a predetermined LC volume between the pathways, and the pathways are respectively accessible for interconnection with a LC electric pulse driving means; a final structural layer being of predetermined optically transparency to frequencies of light scattered by at least one of the other layers; and means for sealing the initial layer to the final layer with the addressable layers there-between.

    摘要翻译: 一种结构上支持的LCD介质,包括:初始结构层; 多个可寻址层,其中每个具有预定的光学性质,并且层之间具有LC并且在相对面上具有分别处于通路之间的预定LC体积的窄导电通路,并且通路分别可访问以用于与 LC电脉冲驱动装置; 最终结构层对于由至少一个其它层散射的光的频率具有预定的光学透明度; 以及用于将初始层密封到具有可寻址层的最终层之间的装置。

    Drive scheme for a cholesteric liquid crystal display device
    112.
    发明申请
    Drive scheme for a cholesteric liquid crystal display device 失效
    胆甾型液晶显示装置的驱动方案

    公开(公告)号:US20080042959A1

    公开(公告)日:2008-02-21

    申请号:US11798184

    申请日:2007-05-10

    IPC分类号: G09G3/36 G02F1/137

    摘要: A cholesteric liquid crystal display device comprises three cells each comprising a layer of cholesteric liquid crystal material and an electrode arrangement capable of providing independent driving of a plurality of pixels across the layer of cholesteric liquid crystal material by respective drive signals. A drive circuit applies a respective drive signal to each pixel to drive the pixel into states which are variable to provide a reflectance varying within a predetermined range of reflectances. The drive signals involve a combination of two drive schemes to provide reflectances in different portions of the range. In particular, (a) when providing a reflectance in a first portion of higher reflectance, the drive signals comprise a first waveform shaped to drive the pixel into a stable state, the waveform having a shape which is variable to provide a stable state having a varying reflectance; and (b) when providing a reflectance in a second portion of lower reflectance, the drive signals comprise a second waveform shaped to drive the pixel into the homeotropic state and the planar state alternately, the periods of time during which the pixel is driven into the homeotropic and planar states being variable to provide a varying average reflectance as perceived by a viewer. Such a combination of drive schemes allows a good contrast ratio and colour gamut to be achieved because of the use of the homeotropic state but only increases the power consumption by a relatively small amount as the homeotropic state is only used for a portion of the pixels.

    摘要翻译: 胆甾醇型液晶显示装置包括三个单元,每个单元包括胆甾型液晶材料层和能够通过相应的驱动信号提供穿过胆甾型液晶材料层的多个像素的独立驱动的电极装置。 驱动电路将相应的驱动信号施加到每个像素以将像素驱动到可变的状态,以提供在预定反射范围内变化的反射率。 驱动信号涉及两个驱动方案的组合,以在该范围的不同部分提供反射。 特别地,(a)当在较高反射率的第一部分中提供反射率时,驱动信号包括成形为将像素驱动到稳定状态的第一波形,该波形具有可变的形状,以提供具有 变化反射率; 和(b)当在较低反射率的第二部分中提供反射率时,驱动信号包括形状为将像素驱动成垂直状态和平面状态的第二波形,其中像素被驱动到 垂直和平面状态是可变的,以提供观察者感觉到的变化的平均反射率。 驱动方案的这种组合允许由于使用垂直状态而实现良好的对比度和色域,而仅仅将像素的一部分使用垂直状态,而仅增加功率消耗相对较小的量。

    Thermochromic polymerizable mesogenic composition
    117.
    发明授权
    Thermochromic polymerizable mesogenic composition 失效
    热变色可聚合介晶组成

    公开(公告)号:US06316066B1

    公开(公告)日:2001-11-13

    申请号:US09522708

    申请日:2000-03-10

    IPC分类号: C09K1934

    摘要: The invention relates to a thermochromic polymerizable mesogenic composition essentially consisting of: a) a component MA comprising at least one achiral polymerizable mesogenic compound comprising at least one polymerizable functional group, b) a component MB comprising at least one chiral polymerizable mesogenic compound comprising at least one polymerizable functional group, c) a photoinitiator, and d) optionally a dye component, to anisotropic polymers and polymer films with a chiral mesophase obtainable from said thermochromic polymerizable mesogenic composition and to the use of said thermochromic polymerizable mesogenic composition, anisotropic polymers and polymer films for optical information storage, photomasks, decorative pigments, cosmetics, security applications, active and passive optical elements such as polarizers or optical retarders, color filters, scattering displays, adhesives or synthetic resins with anisotropic mechanical properties.

    摘要翻译: 本发明涉及一种基本上由以下组成的热变色聚合性介晶组合物:a)包含至少一种包含至少一个可聚合官能团的至少一种非手性可聚合介晶化合物的组分MA,b)至少包含至少一种手性可聚合介晶化合物的组分MB,至少包含 一种可聚合官能团,c)光引发剂,和d)任选的染料组分,可以使用可从所述热变色可聚合介晶组合物获得的具有手性中间相的各向异性聚合物和聚合物膜,以及使用所述热变色可聚合介晶组合物,各向异性聚合物和聚合物膜 用于光学信息存储,光掩模,装饰颜料,化妆品,安全应用,诸如偏振器或光学延迟器的有源和无源光学元件,滤色器,散射显示器,具有各向异性机械性能的粘合剂或合成树脂。

    Broadband reflective polarizer
    119.
    发明授权
    Broadband reflective polarizer 失效
    宽带反射偏振器

    公开(公告)号:US6099758A

    公开(公告)日:2000-08-08

    申请号:US153997

    申请日:1998-09-16

    摘要: The invention relates to a broadband reflective polarizer that comprises a layer of a polymerized mesogenic material exhibiting a helically twisted molecular structure with planar alignment, said reflective polarizer being obtainable by a process wherein a mixture of a chiral polymerizable mesogenic material comprisinga) at least one achiral polymerizable mesogenic compound,b) at least one chiral compound that can in addition be polymerizable and/or mesogenic,c) a polymerization initiator,is coated on a substrate or between two substrates in form of a layer, aligned in a planar orientation so that the axis of the molecular helix extends transversely to the layer, and polymerized by exposure to heat or actinic radiation, and optionally the substrates are removed from the polymerized material, characterized in that said polymerizable material is coated and polymerized between two different substrates, and/or at least one of said substrates comprises a barrier layer on the surface adjacent to the layer of said polymerizable material, to a process of preparing such a broadband reflective polarizer and to a liquid crystal display comprising such a broadband reflective polarizer

    摘要翻译: 本发明涉及一种宽带反射偏振器,其包括呈现具有平面取向的螺旋扭曲分子结构的聚合介晶材料层,所述反射偏振器可通过以下方法获得:其中手性可聚合介晶材料的混合物包含a)至少一种 非手性可聚合介晶化合物,b)至少一种另外可聚合和/或介晶的手性化合物,c)聚合引发剂,以平面取向对齐的方式涂覆在基材上或两层基板之间, 分子螺旋线的轴线横向延伸,并且通过暴露于热或光化辐射而聚合,并且任选地从聚合材料中除去基底,其特征在于,所述可聚合材料在两个不同的基底之间被涂覆和聚合,并且 /或至少一个所述衬底包括在表面上的阻挡层 涉及到所述可聚合材料的层,制备这种宽带反射型偏振片的方法和包括这种宽带反射型偏振片的液晶显示器