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:
Mar. 20, 2012

Filed:

May. 15, 2008
Applicants:

Yasuo Inoue, Tokyo, JP;

Yoshihiro Kosugi, Tokyo, JP;

Ken Kikuchi, Tokyo, JP;

Takeya Meguro, Tokyo, JP;

Hideto Mori, Kanagawa, JP;

Toyo Osumi, Aichi, JP;

Inventors:

Yasuo Inoue, Tokyo, JP;

Yoshihiro Kosugi, Tokyo, JP;

Ken Kikuchi, Tokyo, JP;

Takeya Meguro, Tokyo, JP;

Hideto Mori, Kanagawa, JP;

Toyo Osumi, Aichi, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a display device provided with a display portion, in which pixels having a light-emitting element for self-light-emitting, and a pixel circuit for controlling a current applied to a light-emitting element according to a voltage signal are arranged in a matrix, provided with an average luminance calculation portion calculating an average of luminance of an input video signal, and a light-emitting time setting portion setting a real duty defined every one frame by which light-emitting time for light emitting of the light-emitting element according to a calculated average luminance, wherein the light-emitting time setting portion sets the real duty in such a way that a light-emitting amount defined by a standard duty set beforehand and a maximum luminance among those of a video signal, and a light-emitting amount defined by a real duty to be set and an average luminance become the same as each other.


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