Invention Grant
- Patent Title: Color filterless display device, optical element, and manufacture
- Patent Title (中): 无滤色显示装置,光学元件和制造
-
Application No.: US11621559Application Date: 2007-01-09
-
Publication No.: US07936412B2Publication Date: 2011-05-03
- Inventor: Hidetoshi Numata , Shinya Ono , Fumiaki Yamada , Yoichi Taira
- Applicant: Hidetoshi Numata , Shinya Ono , Fumiaki Yamada , Yoichi Taira
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Vazken Alexanian
- Priority: JP2003-295496 20030819
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
A color filterless display device performing color display for expressing one pixel by three RGB sub-pixels includes: a light source; a diffraction grating for separating a light irradiated from this light source into lights of a plurality of wavelength regions; a cylindrical lens array for receiving the separated light and condensing the light while corresponding to each of the sub-pixels; and a liquid crystal cell including a structure portion for correcting an angle of the condensed light for all sub-pixels, wherein, in the structure portion of this liquid crystal cell, a side onto which a light from the cylindrical lens array is made incident is made of a high refractive index layer, an emitting side from which the light is emitted is made of a low refractive index layer, and a Fresnel-type microprism structure is formed by the high refractive index layer and the low refractive index layer.
Public/Granted literature
- US20070139582A1 COLOR FILTERLESS DISPLAY DEVICE, OPTICAL ELEMENT, AND MANUFACTURE Public/Granted day:2007-06-21
Information query
IPC分类: