Illumination – Revolving
Patent
1997-01-30
1999-10-05
Husar, Stephen
Illumination
Revolving
362561, 349 65, F21V 704, G02F 11335
Patent
active
059611987
ABSTRACT:
A light guide panel and liquid crystal display device including a liquid crystal cell array, a light guide panel or plate disposed on a rear surface of the liquid crystal cell array, and a light source disposed at a lateral side of the light guide panel or plate. The light guide panel or plate has a light incident surface on which light rays emitted from the light source are incident, a light-transmissive surface through which the incident light rays exit the light guide panel or plate toward the liquid crystal cell array, and a plurality of reflecting slant portions for directing the incident light rays toward the light-transmissive surface, wherein the reflecting slant portions are constituted by convexes or concaves which are substantially rectangular in plan view and substantially trapezoidal in sectional view.
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Hira Yasuo
Kodera Yoshie
Mori Yuji
Taniguchi Hitoshi
Hitachi , Ltd.
Husar Stephen
Spark Matthew J.
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