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. 04, 2013
Filed:
May. 14, 2008
Hidehiko Shidara, Tokyo, JP;
Ken Kikuchi, Tokyo, JP;
Yasuo Inoue, Tokyo, JP;
Masahiro Ito, Kanagawa, JP;
Hideto Mori, Kanagawa, JP;
Hidehiko Shidara, Tokyo, JP;
Ken Kikuchi, Tokyo, JP;
Yasuo Inoue, Tokyo, JP;
Masahiro Ito, Kanagawa, JP;
Hideto Mori, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A display device includes: an average value calculating section which inputs video signals having linear property and calculates an average value of levels of the video signals in each pixel; an average value memory section which sequentially stores the average values calculated by the average value calculating section; a still image determining section which determines whether a still image is displayed on a present screen based on a difference between the average value stored in the average value memory section and a last average value; a coefficient calculating section which, when the determination is made that a still image is displayed on the present screen as a result of the determination in the still image determining section, calculates coefficients for lowering luminance of an image displayed on the display device; and a coefficient multiplying section which multiplies the video signals by the coefficients calculated by the coefficient calculating section.