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:
Oct. 30, 2012
Filed:
Dec. 02, 2010
Kenichi Murakoshi, Osaka, JP;
Tsuyoshi Ono, Osaka, JP;
Hidekazu Fujii, Osaka, JP;
Yasuaki Hirano, Osaka, JP;
Makoto Hirota, Osaka, JP;
Kenichi Murakoshi, Osaka, JP;
Tsuyoshi Ono, Osaka, JP;
Hidekazu Fujii, Osaka, JP;
Yasuaki Hirano, Osaka, JP;
Makoto Hirota, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Provided is a backlight unit capable of reducing luminance unevenness. The backlight unit includes a plurality of dot light sources and a light guide plate in which a predetermined side surface serves as a light incident surface for introducing light from the plurality of dot light sources. The plurality of dot light sources are classified into a first light source group and a second light source group. A mount point of the first light source group and a mount point of the second light source group are displaced from each other in a thickness direction of the light guide plate. A total luminance of the first light source group is higher than a total luminance of the second light source group.