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:
Feb. 02, 2016
Filed:
Jan. 12, 2012
Applicants:
Mitsuhiro Shigeta, Osaka, JP;
Nobuo Okano, Osaka, JP;
Inventors:
Mitsuhiro Shigeta, Osaka, JP;
Nobuo Okano, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); G09G 5/02 (2006.01); G01J 3/50 (2006.01); H04N 9/69 (2006.01); H04N 17/02 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 5/02 (2013.01); G01J 3/506 (2013.01); G09G 3/2003 (2013.01); H04N 9/69 (2013.01); H04N 17/02 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0666 (2013.01); G09G 2320/0693 (2013.01); G09G 2340/06 (2013.01); G09G 2360/16 (2013.01);
Abstract
A gray scale correction method for a display device includes a step of setting a target value including a target luminance and a target chromaticity of a color display pixel (S), a step of measuring tristimulus values of each of a plurality of reference colors and each of a plurality of comparative colors in accordance with a prescribed gamma characteristic (S), a step of finding a reference value and a comparative value from the measured tristimulus values (S), and a step of correcting a gray scale based on the target value, the reference value and the comparative value (S).