Switchable color filter
    173.
    发明专利

    公开(公告)号:JP2004522985A

    公开(公告)日:2004-07-29

    申请号:JP2002539875

    申请日:2001-11-01

    Abstract: 液晶スイッチャブル・カラーフィルタは、3つのカラー帯域間でスイッチしかつ例えば、投影装置、直視ディスプレイおよびビデオ・カメラのような、時系列カラー装置に好適に用いられる。 カラーフィルタは、3つの液晶スイッチ(sw1、sw2、sw3)および関連リターダー・レイヤーと一緒に少なくとも4つのコレステリック・フィルタ(cfb1、cfr2)の円偏光する選択的反射帯域を採用する。 第2のコレステリック・フィルタ(cfg1)の左右対称は、第3のコレステリック・フィルタ(cfg2)の左右対称に等しくかつ第1および第4のコレステリック・フィルタ(cfb2、cfr1)の左右対称と逆であり、かつカラー帯域のブロッキング状態に対して、対応している液晶スイッチの光軸は、偏光方向に並行または垂直である。 この概念は、改善された、優れた色の彩度に導きかつ従来技術におけるよりも厳しくない製品許容誤差を要求する。 更に、それはオーバーラッピング・カラー透過帯域を有利に許容しそれゆえに光効率を改善する。
    【選択図】図5a

    Liquid crystal display device
    174.
    发明公开
    Liquid crystal display device 有权
    液晶显示装置

    公开(公告)号:EP2407820A1

    公开(公告)日:2012-01-18

    申请号:EP11170146.2

    申请日:2011-06-16

    Abstract: Disclosed is an LCD device which facilitates to realize a high aesthetic sense by obtaining a colorful and entirely-unified color screen under the circumstance that an image is not displayed in a turning-off state, wherein the LCD device comprises: a liquid crystal module which comprises a liquid crystal panel for displaying an image; a set cover which supports the liquid crystal module; and a color realization film which selectively transmits light with a predetermined wavelength when the liquid crystal module is turned-off, wherein the color realization film comprises a cholesteric liquid crystal layer (CLC), a quarter wave plate (QWP), and a first adhesive layer formed between the cholesteric liquid crystal layer (CLC) and the quarter wave plate (QWP).

    Abstract translation: 本发明公开了一种液晶显示装置,其通过在关闭状态下不显示图像的情况下获得彩色且完全统一的彩色屏幕来实现高美感,其中,该液晶显示装置包括:液晶模块, 包括用于显示图像的液晶面板; 支撑液晶模块的机盖; 和当所述液晶模块被关闭时选择性地透射具有预定波长的光的颜色实现膜,其中所述颜色实现膜包括胆甾型液晶层(CLC),四分之一波片(QWP)和第一粘合剂 层形成在胆甾型液晶层(CLC)和四分之一波片(QWP)之间。

    Polarized light extraction optical element
    176.
    发明公开
    Polarized light extraction optical element 审中-公开
    偏振光提取光学元件

    公开(公告)号:EP1826592A2

    公开(公告)日:2007-08-29

    申请号:EP07010093.8

    申请日:2000-04-19

    CPC classification number: G02B5/3016 G02F1/133536 G02F2201/343

    Abstract: A polarized light extraction optical element (10) is formed by a light-transmitting base material (12) and a polarization separation layer (14) laminated thereonto, this polarization separation layer (14) being a liquid crystal layer made of a cholesteric liquid crystal. The thickness of the liquid crystal layer is smaller than the thickness that would be required to achieve a maximum reflectivity, so that part of one (L) of the right and left circularly polarized light components (R, L) is reflected with a reflectivity smaller than the maximum reflectivity.

    Abstract translation: 偏光提取光学元件(10)由透光基材(12)和层合在其上的偏光分离层(14)形成,该偏光分离层(14)是由胆甾型液晶 。 液晶层的厚度小于实现最大反射率所需的厚度,使得左右圆偏振光分量(R,L)中的一个(L)的一部分以小的反射率反射 比最大反射率。

    Half-transmissive liquid crystal display element
    178.
    发明公开
    Half-transmissive liquid crystal display element 有权
    Halb-TransmittierendesFlüssigskristallanzeigeelement

    公开(公告)号:EP1158346A3

    公开(公告)日:2004-03-17

    申请号:EP01112027.6

    申请日:2001-05-23

    Abstract: The liquid crystal display element includes a polarization plate (11), a liquid crystal layer (15) provided in the rear of the polarization plate, for modulating incident light in correspondence with an applied voltage, a selectively reflective layer (18) provided behind the liquid crystal layer, for reflecting a first circular polarization component of incident light, and a back light source (21) arranged in the rear of the selectively reflective layer, for emitting light having intensity peaks for a plurality of predetermined wavelengths. The selectively reflective layer (18) has first reflection factors to the first polarization components of incident light falling within first small regions of visible light, including the plurality of predetermined wavelengths, and has second reflection factors to the first polarization components of incident light falling within second small regions of visible light, not including the plurality of predetermined wavelengths. The first reflection factors are smaller than the second reflection factors.

    Abstract translation: 液晶显示元件包括偏振板(11),设置在偏振板后部的用于调制与施加电压对应的入射光的液晶层(15),设置在所述偏振板后面的选择性反射层(18) 用于反射入射光的第一圆偏振分量的液晶层和布置在选择反射层的后部的背光源(21),用于发射具有多个预定波长的强度峰值的光。 选择反射层(18)具有对入射光的第一偏振分量的第一反射因子,该入射光落在包括多个预定波长的可见光的第一小区域内,并且具有入射光的第一偏振分量的第二反射系数 可见光的第二小区域,不包括多个预定波长。 第一反射因子小于第二反射因子。

    Polarized light extraction optical element
    179.
    发明公开
    Polarized light extraction optical element 审中-公开
    Optischer Polarisationsstrahlenteiler

    公开(公告)号:EP1046934A1

    公开(公告)日:2000-10-25

    申请号:EP00108570.3

    申请日:2000-04-19

    CPC classification number: G02B5/3016 G02F1/133536 G02F2201/343

    Abstract: A polarized light extraction optical element (10) is formed by a light-transmitting base material (12) and a polarization separation layer (14) laminated thereonto, this polarization separation layer (14) being a liquid crystal layer made of a cholesteric liquid crystal. The thickness of the liquid crystal layer is smaller than the thickness that would be required to achieve a maximum reflectivity, so that part of one (L) of the right and left circularly polarized light components (R, L) is reflected with a reflectivity smaller than the maximum reflectivity.

    Abstract translation: 偏振光提取包括透光基材(12)和层压到作为偏振分离层的基材上的液晶层(14)。 液晶层的厚度小于实现最大反射率所需的厚度。 右和左(R,L)圆偏振光分量中的一个(L)的一部分被反射。

    A SUBTRACTIVE COLOR LIQUID CRYSTAL DISPLAY UTILIZING CIRCULAR NOTCH POLARIZERS
    180.
    发明授权
    A SUBTRACTIVE COLOR LIQUID CRYSTAL DISPLAY UTILIZING CIRCULAR NOTCH POLARIZERS 失效
    具有圆形SPERRPOLISARISATION减法彩色液晶显示

    公开(公告)号:EP0764289B1

    公开(公告)日:2000-08-16

    申请号:EP95922209.2

    申请日:1995-06-05

    Applicant: HONEYWELL INC.

    CPC classification number: G02F1/13473 G02F1/133533 G02F2201/343 G02F2203/34

    Abstract: A subtractive color liquid crystal display employing circular polarizers. In the subtractive color display each picture element has three liquid crystal switching elements. Adjacent to each liquid crystal switching element are a circular polarizer and 1/4 wave retarder plate combination. The circular polarizer and 1/4 wave retarder plate combination create a linear notch polarizer for an isolated and steep polarization band for each of the primary colors (red, green, blue). The notch polarizers are tuned to the particular backlight of the display in order to provide increased light transmittance and color gamut. The circular notch polarizers are preferably cholesteric liquid crystal silicones.

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