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:
Aug. 17, 2021
Filed:
Jul. 08, 2020
Mitsubishi Electric Corporation, Tokyo, JP;
Shogo Tanaka, Kumamoto, JP;
Kazuhiro Ishiguchi, Kumamoto, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An adjustment is performed on input gradation values, and 1st-stage gradation values are obtained. When a color expressed by a set of the input gradation values is a single color of any one of R, G, and B, the 1st-stage gradation value is set to 0. Further, correction is performed for R, G, and B according to one-dimensional lookup tables, respectively, and correction is performed for W according to one-dimensional lookup tables. Further, a contribution amount of the gradation values obtained through correction of the former and the gradation values obtained through correction of the latter to output gradation values is changed according to a color expressed by a set of the 1st-stage gradation values.