The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2000
Filed:
Jul. 07, 1998
Applicant:
Inventors:
Kyotaro Nakamura, Nara, JP;
Yutaka Fujiyama, Nigata, JP;
Assignees:
Sharp Kabushiki Kaisha, Osaka, JP;
Sharp Niigata Electronics Corporation, Nigata-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362 31 ; 362561 ;
Abstract
A backlight device includes: a light source; a light-guiding plate; and a reflector. The light-guiding plate has a first principal surface and a second principal surface provided so as to face each other, and an end surface. The reflector is disposed so as to illuminate the end surface with light from the light source. The light-guiding plate has an output region on the first principal surface, for outputting light inputted from the end surface. An anti-reflection member is provided above the first principal surface in a region between the output region and the end surface.