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:
Oct. 16, 2012
Filed:
Jul. 01, 2010
Koji Kobayashi, Yokohama, JP;
Koji Kobayashi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A correction value for luminance correction is determined by: measuring a luminance value of each display element by displaying a first image including luminance unevenness caused by characteristic differences among the display elements and characteristic differences among modulation circuits, and calculating a first luminance value serving as a representative luminance value of the display elements for each of the modulation circuits; measuring the luminance value of each of the display elements by displaying a second image in which the luminance unevenness caused by characteristic differences among the modulation circuits is smaller than that of the first image, and calculating a second luminance value serving as a representative luminance value of the display elements for each of the modulation circuits; and calculating a correction value corresponding to each modulation circuit using a value obtained by dividing the first luminance value by the second luminance value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile