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:
Jan. 29, 2013
Filed:
Mar. 13, 2009
Naoki Ohashi, Kanagawa, JP;
Takashi Hirakawa, Tokyo, JP;
Naoki Ohashi, Kanagawa, JP;
Takashi Hirakawa, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A video signal processing circuit is disclosed. The video signal processing circuit includes a difference detection section, first calculation section, and correction amount addition section. The difference detection section detects a difference between a drive voltage for each of pixels of a matrix drive type display panel as a pixel under consideration and a drive voltage of each of pixels adjacent to the pixel under consideration from an input video signal. The first calculation section calculates a correction amount of a drive voltage for a pixel under correction that has a luminance change due to an electric field caused by a difference of the drive voltages for the two pixels detected by the difference detection section. The correction amount addition section corrects a value of the drive voltage for a pixel under correction that has the luminance change based on the correction amount calculated by the first calculation section.