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:
Jun. 21, 2022
Filed:
Dec. 08, 2020
Applicant:
Panasonic Liquid Crystal Display Co., Ltd., Hyogo, JP;
Inventors:
Assignee:
PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/60 (2006.01); G09G 5/10 (2006.01); H04N 5/57 (2006.01); H04N 9/64 (2006.01); H04N 9/69 (2006.01); H04N 9/73 (2006.01); H04N 9/77 (2006.01);
U.S. Cl.
CPC ...
G09G 5/10 (2013.01); G09G 2320/066 (2013.01); G09G 2320/0673 (2013.01); G09G 2320/0693 (2013.01); G09G 2354/00 (2013.01); G09G 2360/144 (2013.01); G09G 2380/08 (2013.01);
Abstract
A display device for displaying image data includes: a gradation conversion circuit that converts a gradation of input image data; a display panel that displays the image data with the gradation converted by the gradation conversion circuit; an illuminance sensor that detects illuminance of an environment where the display device is placed; and a gamma characteristic corrector that controls a gradation conversion circuit so as to convert the gradation by use of a gamma characteristic corresponding to the detected illuminance.