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. 19, 2016
Filed:
Jul. 10, 2012
Toshiyuki Fujine, Osaka, JP;
Yoji Shiraya, Osaka, JP;
Toshiyuki Fujine, Osaka, JP;
Yoji Shiraya, Osaka, JP;
SHARP KABUSHIKI KAISHA, Osaka, JP;
Abstract
A light emission portion of a video signal is detected, and the display intensity of the light emission portion is enhanced for emphasis display. At this moment, the intensity stretch amount is controlled in accordance with a status of video black display, thereby increasing the feeling of brightness and hence improving the video quality. An area-active-control/luminance-stretching portion stretches and increases the intensity of a backlight portion on the basis of an index related to a brightness calculated, on the basis of a predetermined condition, from the input video signal, and lowers the video signal intensity of the non-light emission part excluding the light emission part. At this moment, the area-active-control/luminance-stretching portion changes, in accordance with a black display amount detected by a black detection portion, a control curve that defines the relationship between the index related to the brightness and the stretch amount.