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公开(公告)号：JPH10222047A
公开(公告)日：1998-08-21
申请号：JP1630298
申请日：1998-01-29
Applicant: XEROX CORP
Inventor： CRAWFORD GREG P , FISKE THOMAS G , SILVERSTEIN LOUIS D
IPC: G02F1/1333 , G02F1/1334 , G02F1/1347 , G03H1/22 , G09F9/35
Abstract: PROBLEM TO BE SOLVED: To eliminate clouding when seeing from various angles by improving a white reflectance in photopic vision of a paper white reflecting type display, reducing a driving voltage, and enhancing a contrast ratio. SOLUTION: A paper white reflecting type display 47 is improved in a white reflectance in photopic vision, has a high contrast, no clouding or opaqueness when seeing from various angles, and has a low driving voltage. The paper white reflecting display 47 includes a 1st and a 2nd substrates 48, 50, and a plurality of groups 52, 54, 56 of liquid crystal layers and polymer layers; each group reflects light of different wave lengths respectively; and a voltage source 58, which selectively applies the voltage on all the liquid crystal layers and polymer layers, is connected across the 1st and 2nd substrates 48, 50.
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公开(公告)号：JP2009075624A
公开(公告)日：2009-04-09
申请号：JP2009005633
申请日：2009-01-14
Applicant: Xerox Corp , ゼロックス コーポレイションXerox Corporation
Inventor： CRAWFORD GREG P , FISKE THOMAS G , SILVERSTEIN LOUIS D
IPC: G02F1/1333 , G02F1/1334 , G02F1/1347 , G02F1/137 , G03H1/22 , G09F9/35
CPC classification number: G02F1/13473 , G02F1/1334
Abstract: PROBLEM TO BE SOLVED: To eliminate haze when viewed from various angles by reducing drive voltage of a broadband reflective display device and improving reflectivity in fairly wide bandwidth.
SOLUTION: The broadband reflective display device 47 has improved reflectivity as well as a lack of or opaqueness when viewed from various viewing angles, a reduced drive voltage compared to conventional devices and an improved peak photopic reflectance. The broadband reflective display device 47 includes: a plurality of pairs of substrates 10; and a plurality of layer groups 48 to 64 in each of which liquid crystal layers and polymer layers are alternately arranged between each of the pairs of substrates 10, wherein respective layer groups 48 to 64 of the liquid crystal layers and the polymer layers reflect light rays having wavelengths different from one another.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：通过降低宽带反射显示装置的驱动电压并在相当宽的带宽内提高反射率，从各种角度观察时消除雾度。 解决方案：宽带反射显示装置47具有改进的反射率以及从各种视角观察时的缺乏或不透明度，与常规装置相比降低的驱动电压和改进的峰值光反射率。 宽带反射显示装置47包括：多对基板10; 并且在每对基板10之间交替布置液晶层和聚合物层的多个层组48至64，其中液晶层和聚合物层的各个层组48至64反射光线 具有彼此不同的波长。 版权所有（C）2009，JPO＆INPIT
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23.发明专利
公开(公告)号：JP2000209600A
公开(公告)日：2000-07-28
申请号：JP37210699
申请日：1999-12-28
Applicant: XEROX CORP
Inventor： SILVERSTEIN LOUIS D , FISKE THOMAS G , HEIDI JUAN
Abstract: PROBLEM TO BE SOLVED: To provide a full color picture with high quality and a monochromatic picture with high resolution. SOLUTION: An image pickup device 40 includes a lens 42, a color separation element 44, and an image sensor array 45. The lens 42 focuses a light L to the color separation element 44 and directs it. The color separation element 44 acts like a color separation mirror and is in operation in a reflection mode. The light reflected in the color separation element 44 is directed to an image sensor like an image sensor array 45. The lens 42 focuses the incident light L onto the color separation element 44. The color separation element 44 includes three cells 46, 48, 50. The cells 46, 48, 50 include a couple of boards opposite to each other and each cell includes a power supply connected electrically to the board pair respectively. The color separation element 44 reflects a light in a different color depending on on/off of an electric field.
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公开(公告)号：JPH10282491A
公开(公告)日：1998-10-23
申请号：JP8206098
申请日：1998-03-27
Applicant: XEROX CORP
Inventor： SILVERSTEIN LOUIS D , FISKE THOMAS G , CRAWFORD GREG P
IPC: G02B6/00 , G02B6/04 , G02F1/1335 , G02F1/1347 , G02F1/137
Abstract: PROBLEM TO BE SOLVED: To provide a Bragg's reflection liquid crystal display applying an optical fiber face plate and independent of a polarizer. SOLUTION: Light emitted from a lighting source 60 is made incident on an FOFP 50 at an incident angle θ about the normal of the surface of the FOFP 50. The light from the lighting source 60 is uniformed by azimuth ϕand inclination θ from the FOFP 50. Then the light is reflected from a liquid crystal material 40 and made incident on the FOFP 50 again. The light is uniformed by the azimuth and inclination from the OPFP 50. Since the light uniformed twice by the azimuth and the inclination is made incident on observer's eyes, effective and contrastive visual characteristics can be provided in all visual field points. Thereby the effective reflection factor of the display is not restricted by a reflection axis.
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