公开(公告)号：US20040246411A1

公开(公告)日：2004-12-09

申请号：US10455050

申请日：2003-06-05

Applicant: Eastman Kodak Company

Inventor： Stanley W. Stephenson ,  Terry J. Martin

IPC: G02F001/1335

CPC classification number: G02F1/13718 ,  C09D5/24 ,  G02F1/1334 ,  G02F2201/343

Abstract: A display sheet comprising a substrate carrying layers of material; including a polymer-dispersed cholesteric liquid-crystal layer having a first high reflection state within a portion of the visible light spectrum and a second less-reflective state in said spectrum, said states being changeable by electric field between the two states which states can be maintained in the absence of an electric field; a first transparent conductor disposed over the polymer-dispersed cholesteric liquid-crystal layer; a complementary light-absorbing layer below the polymer-dispersed cholesteric liquid-crystal layer having relatively high light absorption within the spectrum of the high-reflection state of the polymer-dispersed cholesteric liquid-crystal layer and having relatively less light absorption in the spectrum complementary to that of the high reflection state of the polymer-dispersed cholesteric liquid-crystal layer; and a reflective second conductor under said complementary light-absorbing layer reflecting light received from the complementary light-absorbing layer back through the complementary light-absorbing layer.

Abstract translation: 一种显示板，包括承载材料层的基板; 包括在可见光谱的一部分内具有第一高反射状态的聚合物分散的胆甾醇型液晶层和所述光谱中的第二较少反射状态，所述状态可由两个状态之间的电场改变，状态可以是 维持在没有电场的情况下; 布置在聚合物分散的胆甾醇型液晶层上的第一透明导体; 在聚合物分散的胆甾型液晶层的高反射状态的光谱内具有相对较高的光吸收的聚合物分散的胆甾醇型液晶层下面的互补的光吸收层，并且在光谱互补中具有相对较少的光吸收 与聚合物分散的胆甾型液晶层的高反射状态的相反; 以及在所述互补光吸收层下方的反射第二导体，其将从互补光吸收层接收的光反射回通过互补光吸收层。

公开(公告)号：US06671016B1

公开(公告)日：2003-12-30

申请号：US09585408

申请日：2000-06-02

Applicant: Yong Beom Kim

Inventor： Yong Beom Kim

IPC: G02F11335

CPC classification number: G02F1/13362 ,  G02F1/133514 ,  G02F1/133536 ,  G02F1/1396 ,  G02F2001/133543 ,  G02F2201/343 ,  G02F2203/01 ,  G02F2203/02

Abstract: A transmission-reflection type liquid crystal display device including a first transparent substrate and a second transparent substrate; a liquid crystal layer between the first transparent substrate and the second transparent substrate; a linear polarizer and a resinoid color filter provided on the second transparent substrate; a left-handed cholesteric liquid crystal circular polarizer provided on the first transparent substrate; and a left-handed cholesteric liquid crystal color filter formed on the first transparent substrate in order to be situated between the cholesteric liquid crystal circular polarizer and the liquid crystal layer. The liquid crystal display device having this structure can be driven as a reflection type and a transmission type display. The cholesteric liquid crystal color filter having good color purity is added to the resinoid color filter to improve the overall color properties of the device.

Abstract translation: 一种透射反射型液晶显示装置，包括第一透明基板和第二透明基板; 在第一透明基板和第二透明基板之间的液晶层; 设置在第二透明基板上的线偏振器和树脂滤色器; 设置在第一透明基板上的左旋胆甾型液晶圆偏振片; 以及形成在第一透明基板上以便位于胆甾型液晶圆偏振器和液晶层之间的左旋胆甾醇型液晶滤色器。 具有这种结构的液晶显示装置可以作为反射型和透射型显示器被驱动。 将具有良好色纯度的胆甾型液晶彩色滤光片加入到树脂滤色片中，以改善装置的整体色彩特性。

公开(公告)号：US20020021392A1

公开(公告)日：2002-02-21

申请号：US09840126

申请日：2001-04-24

Inventor： Toshiya Ohtake ,  Yuzo Hisatake ,  Atsuko Oono

IPC: G02F001/1335

CPC classification number: G02F1/133553 ,  G02F1/13363 ,  G02F2201/343

Abstract: A liquid crystal display element comprises a polarization plates, phase difference plates, a liquid crystal layer, and selectively reflective layers for reflecting part or whole of circularly polarized light in a specific direction. The products of the respective thicknesses of the polarization plate, phase difference plate, liquid crystal layer, and selectively reflective layer and the difference between an average refractive index in a direction perpendicular to each display plane and an average refractive index in a direction parallel to the display plane are set so that the absolute value of their sum total is 50 nm or less. Each selectively reflective layer is formed of a layer having positive refractive index anisotropy and a layer having negative refractive index anisotropy.

Abstract translation: 液晶显示元件包括偏光板，相位差板，液晶层和用于反射特定方向的圆偏振光的部分或全部的选择性反射层。 偏振板，相位差板，液晶层和选择反射层的各自厚度的乘积以及垂直于每个显示平面的方向上的平均折射率与平行于该显示平面的方向上的平均折射率之间的差 设置显示面，使得它们的总和的绝对值为50nm以下。 每个选择性反射层由具有正折射率各向异性的层和具有负折射率各向异性的层形成。

公开(公告)号：US20020003593A1

公开(公告)日：2002-01-10

申请号：US09024983

申请日：1998-02-17

Inventor： FUMIHIRO ARAKAWA ,  KEIJI KASHIMA

IPC: G02F001/1335

CPC classification number: G02F1/13362 ,  G02B5/3016 ,  G02F1/133502 ,  G02F1/133504 ,  G02F1/133526 ,  G02F1/133536 ,  G02F1/133615 ,  G02F2001/133543 ,  G02F2001/133607 ,  G02F2001/133638 ,  G02F2201/343

Abstract: A polarization light splitting film having a light receiving side and a light transmitting side. The polarization light splitting film includes an optical rotation selection layer at the light receiving side for reflecting one of right and left circularly polarized components of a light beam that is incident on the light receiving side and for transmitting the other one of the right and left circular polarization components of the light beam, and a quarter-wave layer laminated over the optical rotation selection layer at the light transmitting side.

Abstract translation: 一种具有光接收侧和透光侧的偏振光分解膜。 偏振光分离膜包括在光接收侧的光旋转选择层，用于反射入射在光接收侧的光束的左右圆偏振分量中的一个，并且用于透射左右圆形的另一个 光束的偏振分量，以及层叠在光发射侧的光旋转选择层上的四分之一波长层。

公开(公告)号：US20010046014A1

公开(公告)日：2001-11-29

申请号：US09860554

申请日：2001-05-21

Inventor： Toshiya Ohtake ,  Yuzo Hisatake

IPC: G02F001/1335

CPC classification number: G02F1/133555 ,  G02F1/133536 ,  G02F1/1393 ,  G02F2001/133638 ,  G02F2201/343

Abstract: The liquid crystal display element includes a polarization plate, a liquid crystal layer provided in the rear of the polarization plate, for modulating incident light in correspondence with an applied voltage, a selectively reflective layer provided behind the liquid crystal layer, for reflecting a first circular polarization component of incident light, and a back light source 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 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光板，设置在偏振板后部的液晶层，用于调制与施加电压相对应的入射光;设置在液晶层后面的选择性反射层，用于反射第一圆形 入射光的偏振分量和布置在选择反射层的后面的背光源，用于发射具有多个预定波长的强度峰值的光。 选择反射层具有入射光的第一偏振分量的第一反射因子，该入射光落入包括多个预定波长的可见光的第一小区域内，并且具有落入第二小区域内的入射光的第一偏振分量的第二反射因子 的可见光，不包括多个预定波长。 第一反射因子小于第二反射因子。

公开(公告)号：US5835166A

公开(公告)日：1998-11-10

申请号：US714751

申请日：1996-09-16

Applicant: Dennis R. Hall ,  Philip A. Johnson

Inventor： Dennis R. Hall ,  Philip A. Johnson

IPC: G02B5/30 ,  G02B27/26 ,  G02F1/1335 ,  G02F1/1347 ,  H04N13/00 ,  C09K19/02

CPC classification number: H04N13/0431 ,  G02B27/26 ,  G02B5/3016 ,  G02F1/13473 ,  H04N13/0434 ,  G02F1/133533 ,  G02F1/133536 ,  G02F2001/133543 ,  G02F2201/343 ,  H04N13/0203 ,  H04N13/0257 ,  H04N13/0285 ,  H04N13/0422 ,  H04N13/0438 ,  H04N13/0456 ,  H04N13/0459

Abstract: Monocular and stereoscopic color display systems, wherein passive cholesteric liquid crystal (LC) filter/mirrors and active variable retarder type LC arrays are used in combination to produce low cost, high resolution, multicolor and full color displays, suitable for use as advertising, automotive, aircraft, computer, games and electron instrumentation displays.

Abstract translation: 单眼和立体彩色显示系统，其中被动胆甾型液晶（LC）滤波器/反射镜和有源可变延迟器型LC阵列组合使用以产生低成本，高分辨率，多色和全色显示器，适用于广告，汽车 ，飞机，电脑，游戏机和电子仪表显示器。

公开(公告)号：US5486935A

公开(公告)日：1996-01-23

申请号：US84634

申请日：1993-06-29

Applicant: Michael H. Kalmanash

Inventor： Michael H. Kalmanash

IPC: G02B5/30 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/13362 ,  G02B5/3016 ,  G02F1/133536 ,  G02F2001/133543 ,  G02F2201/343

Abstract: The efficiency of LC displays is improved by the use of a polymeric chiral nematic liquid crystal rear polarizer and reflective backlight housing which increases the net transmission of light and, at the same time, reduces the weight of the assemblage and increases battery life by utilizing lower levels of illumination. The polymeric chiral nematic liquid crystal can be a freestanding film or films, or can be supported by a single glass substrate. The liquid crystal polarizer can have a bandwidth sufficient to transmit electromagnetic radiation across the entire visible spectrum.

Abstract translation: 通过使用聚合物手性向列型液晶后偏振器和反射式背光外壳来提高LC显示器的效率，其增加了光的净透光率，同时减少了组合的重量并且通过利用较低的 照明水平。 聚合物手性向列液晶可以是独立的膜或膜，或者可以由单个玻璃基板支撑。 液晶偏振器可以具有足以在整个可见光谱上传输电磁辐射的带宽。

公开(公告)号：US4670744A

公开(公告)日：1987-06-02

申请号：US711792

申请日：1985-03-14

Applicant: Thomas S. Buzak

Inventor： Thomas S. Buzak

IPC: G02B27/22 ,  G02F1/13 ,  G02F1/1347 ,  G09F9/00 ,  G09F9/35 ,  G09F9/46 ,  H04N13/00 ,  G09G3/36

CPC classification number: H04N13/0495 ,  G02B27/2264 ,  G02B27/2278 ,  G02F1/13471 ,  G09G3/003 ,  G02F1/13473 ,  G02F2201/343 ,  G02F2203/02 ,  H04N13/0422 ,  H04N13/0434 ,  H04N13/0497

Abstract: A display system (10) receives from a light source (12) a sequence of images, each representing a different depth plane of a subject, and selectively reflects each image from its corresonding one of plural light direction modulators (16 and 18) to synthesize a three-dimensional image of the subject. Each modulator is positioned along an axis (20) at a location that corresponds to a different depth plane. Each modulator reflects the first image incident to it and transmits the succeeding images in the sequence. In a display system having N+1 depth plane images, each of N modulators comprises a variable optical retarder (34) and a liquid crystal chiral cell (36). The N modulators reflect left-circularly polarize light and transmit right-circularly polarized light. An N+1 modulator preferably comprises a liquid crystal chiral cell and reflects light incident to it. An alternative embodiment (50) develops full color images.

Abstract translation: 显示系统（10）从光源（12）接收各自代表被摄体的不同深度平面的图像序列，并且从多个光方向调制器（16和18）中相应的一个方向选择性地反射每个图像以合成 主题的三维图像。 每个调制器沿着对应于不同深度平面的位置沿轴线（20）定位。 每个调制器反射入射到其上的第一个图像，并按顺序传输后续图像。 在具有N + 1个深度平面图像的显示系统中，N个调制器中的每一个包括可变光学延迟器（34）和液晶手性单元（36）。 N个调制器反射左圆偏振光并传输右圆偏振光。 N + 1调制器优选包括液晶手性单元并反射入射到其上的光。 替代实施例（50）展开全色图像。

公开(公告)号：US3957348A

公开(公告)日：1976-05-18

申请号：US562305

申请日：1975-03-26

Applicant: Franklin D. Saeva

Inventor： Franklin D. Saeva

IPC: G02F1/137 ,  G02F1/13

CPC classification number: G02F1/137 ,  G02F2201/343 ,  Y10S359/90

Abstract: The optical transitions of extrinsically optically active soluble and insoluble materials become circularly dichroic when in contact with twisted nematic liquid crystalline materials. The circularly dichroic optical properties induced in the normally extrinsically optically active materials are utilized to alter the relative amounts of left and right hand circularly polarized light in elliptically polarized light including producing circularly polarized light.

Abstract translation: 当与扭曲的向列型液晶材料接触时，光学活性的可溶性和不溶性材料的光学转变变为圆形二向色。 在通常的二次光学活性材料中诱发的圆二色性光学性质被用来改变包括产生圆偏振光的椭圆偏振光中的左旋和右旋圆偏振光的相对量。

公开(公告)号：US3957346A

公开(公告)日：1976-05-18

申请号：US562303

申请日：1975-03-26

Applicant: Franklin D. Saeva

Inventor： Franklin D. Saeva

IPC: G02F1/137 ,  G02F1/13

CPC classification number: G02F1/137 ,  G02F2201/343 ,  Y10S359/90

Abstract: The optical transitions of twisted nematic liquid crystalline compositions exhibit circular dichroism. The circular dichroism in twisted nematic liquid crystalline compositions is utilized to alter the relative amounts of left and right hand circularly polarized light in elliptically polarized light, including producing circularly polarized light.

Abstract translation: 扭曲向列液晶组合物的光学转变呈现圆二色性。 扭转向列液晶组合物中的圆二色性用于改变椭圆偏振光中的左右圆偏振光的相对量，包括产生圆偏振光。