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:
Aug. 28, 2012
Filed:
Oct. 03, 2006
Keiji Hayashi, Kameyama, JP;
Kentaro Kamada, Kameyama, JP;
Keiji Hayashi, Kameyama, JP;
Kentaro Kamada, Kameyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A light source device and a display device are disclosed of which high display quality can be maintained by correcting luminance or a color tone without making a user feel strangeness or inconvenience. A light source device is disclosed in at least one embodiment, including light source blocks each of which has red-color light-emitting diodes, green-color light-emitting diodes and blue-color light-emitting diodes and is capable of independently adjusting luminance of the three color diodes, a photo-receiving mechanism arranged to photo-receive light, and a correcting operation control mechanism arranged to calculate correction amounts of the luminance of the light sources in each of the blocks based on photo-receiving amounts of the photo-received light in order to maintain uniform luminance or a uniform color tone among the blocks, wherein the mechanism controls the mechanism to photo-receive the light when a termination operation of the light source device is performed.