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. 08, 2016
Filed:
Aug. 14, 2014
Nlt Technologies, Ltd., Kanagawa, JP;
Kouichi Ooga, Kanagawa, JP;
NLT TECHNOLOGIES, LTD., Kanagawa, JP;
Abstract
A control circuit having large effects of low power consumption in CABC drive is provided. The control circuit performs B/L luminance reduction in eliminating a discomfort in image quality by using the feature value calculation circuit in the video signal. The control circuit comprises a luminance control circuit controlling a backlight luminance according to an inputted video signal and a gradation conversion circuit for converting a gradation of inputted video signal according to a controlled luminance. The control circuit reduces continuously and smoothly the backlight luminance, while the screen area reaches one-pixel white, in case where the all white is inputted as video signal, one-pixel black is displayed in any screen area from a display condition of all white, a rate of screen area displaying one-pixel black is gradually increased, and the video signal is continuously changed until the screen area of all white reaches the one-pixel white.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile