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:
Jul. 16, 2002
Filed:
Oct. 10, 2000
Atsushi Itoh, Kumamoto, JP;
Advanced Display Inc., Kikuchi-gun, JP;
Abstract
A sheet-like light source device includes a light-conducting plate, at least one rod-like light source arranged to be adjacent to a light incidence surface, a tubular reflecting member covering the rod-like light source, a planar reflecting member disposed proximate to a position facing a lower surface of the light-conducting plate, and a holding member housing the light-conducting plate, the light source and both of the reflecting members. A stepped portion is provided on the holding member to contact a part of a side of the light-conducting plate on which the rod-like light source is arranged, with the holding member. A distance between the light-conducting plate and the holding member on the stepped portion is made narrower than a distance between an opening portion of the tubular reflecting member and the light-conducting plate. It is possible to obtain a sheet-like light source device which can ensure high impact resistance even if the device is large in size, which can be manufactured at a low cost and which can suppress the occurrence of uneven brightness.