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:
Nov. 12, 2013
Filed:
Sep. 29, 2010
Toshiki Onishi, Osaka, JP;
Hideyuki Nakanishi, Osaka, JP;
Takahiro Kobayashi, Osaka, JP;
Yoshio Umeda, Hyogo, JP;
Akihiro Yamamura, Osaka, JP;
Seiji Hamada, Osaka, JP;
Toshiki Onishi, Osaka, JP;
Hideyuki Nakanishi, Osaka, JP;
Takahiro Kobayashi, Osaka, JP;
Yoshio Umeda, Hyogo, JP;
Akihiro Yamamura, Osaka, JP;
Seiji Hamada, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Provided is a backlight device wherein when the drive duty and the drive current are controlled according to a motion, the image quality is improved by preventing flicker caused by the change of the drive waveform. A light-emitting unit () comprises a plurality of light-emitting areas. A motion amount detecting unit () detects the motion amount of an image in each of a plurality of motion areas each corresponding to at least one or more light-emitting areas. A drive condition specifying unit specifies a drive condition including the duty and pulse height value of a drive pulse for causing each of the plurality of light-emitting areas to emit light, on the basis of the detected motion amount. A drive unit drives each of the plurality of light-emitting areas according to the specified drive condition. The drive condition specifying unit adjusts the drive condition such that the drive condition temporally smoothly changes.