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:
Jun. 07, 2016
Filed:
Nov. 17, 2010
Tetsuya Ueno, Osaka, JP;
Kohji Fujiwara, Osaka, JP;
Tetsuya Ueno, Osaka, JP;
Kohji Fujiwara, Osaka, JP;
SHARP KABUSHIKI KAISHA, Osaka-Shi, JP;
Abstract
In the present liquid crystal display device, an LED output value correction section () included in an area-active drive processing section () corrects LED data Dbl obtained by an LED output value calculation section () with reference to a luminance correction LUT (), such that the luminance in the area from an intermediate value to near a maximum value shifts to a higher degree. Thus, even if the backlight luminance is low (typically, the mean luminance of an input image is low), contrast ratio is enhanced, thereby preventing a tone jump (insufficient luminance) at high tone levels due to an insufficient backlight luminance.