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. 15, 2022
Filed:
Dec. 23, 2020
Seiko Epson Corporation, Toyko, JP;
Kumar anandabairavasamy Anand, Richmond, CA;
Hideki Matsuda, Chino, JP;
Kwok lap jimmy Lai, Vancouver, CA;
Abstract
A circuit deviceincludes a light source driving value output unitand a pixel value output unit. The light source driving value output unitobtains a corrected intensity image Lled by correcting an intensity image Lint of an input image RGBin in a target display zone based on the light intensity distribution of a light source corresponding to the target display zone, and obtains a light source driving value Ldrv based on the largest corrected intensity value in the corrected intensity image Lled. The pixel value output unitcorrects pixel values of the input image RGBin based on the light source driving value Ldrv, and outputs the corrected pixel values as pixel values of an output image RGBout.