发明名称 Front-illuminating device and a reflection-type liquid crystal display using such a device
摘要 Featured are a front-illuminating device including a light source and first and second light-directing bodies. The first light-directing body is disposed in front of an object to be illuminated and has a first light-releasing surface from which light is released to the object to be illuminated and a second light-releasing surface, placed face to face with the first light-releasing surface, for releasing light reflected from the object to be illuminated. The second light-releasing surface also is formed into a step shape and includes slanting portions that reflect light mainly from the light source toward the first light-releasing surface. The second light-directing body is disposed between the first light-directing body and the object to be illuminated and is configured and arranged so a distance from each of the slanting portions to the surface of the second light-directing body second surface is essentially uniform.
申请公布号 US6879354(B1) 申请公布日期 2005.04.12
申请号 US19990394327 申请日期 1999.09.13
申请人 SHARP KABUSHIKI KAISHA 发明人 SAWAYAMA YUTAKA;SUMIDA YUKIHIRO;MASUDA TAKESHI;EBI TSUYOSHI
分类号 F21V8/00;G02B6/00;G02F1/1335;G02F1/13357;(IPC1-7):G02F1/133 主分类号 F21V8/00
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