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.

Date of Patent:
Jul. 19, 2016

Filed:

May. 03, 2013
Applicant:

Joled Inc., Chiyoda-ku, JP;

Inventors:

Hideto Mori, Tokyo, JP;

Hiroshi Imamura, Kanagawa, JP;

Assignee:

JOLED INC., Chiyoda-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); H04N 5/58 (2006.01); G09G 3/20 (2006.01); H05B 33/08 (2006.01); H04N 21/431 (2011.01); H04N 21/44 (2011.01);
U.S. Cl.
CPC ...
H04N 5/58 (2013.01); G09G 3/20 (2013.01); H04N 21/4318 (2013.01); H04N 21/44008 (2013.01); H05B 33/086 (2013.01); G09G 2320/0285 (2013.01); G09G 2320/046 (2013.01); G09G 2320/066 (2013.01); G09G 2320/0673 (2013.01); G09G 2360/16 (2013.01);
Abstract

Provided is a display device including a panel () in which a plurality of pixels that emit light in response to a video signal are arranged, a light emission amount calculation unit () that acquires a light emission amount on a plurality of positions of the panel () based on a video signal supplied to the panel (), a storage unit () that accumulates data related to the light emission amount accumulated based on a video signal of a plurality of frames, a high-brightness gamma adjustment block () that reduces brightness of a high brightness side of the video signal supplied to the panel () based on the data related to the light emission amount accumulated in storage unit (), and a low-gradation gamma adjustment block () that reduces brightness of a low brightness side of the video signal in conjunction with a reduction in brightness of the high brightness side.


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