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:
May. 31, 2011
Filed:
Dec. 08, 2005
Applicants:
Hidenao Kubota, Yokohama, JP;
Tomoyuki Kawamura, Yokohama, JP;
Inventors:
Hidenao Kubota, Yokohama, JP;
Tomoyuki Kawamura, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided an image display device which can control image retention-preventing means in a static image displaying part, according to a change with the passage of time in a luminance difference. The drive of the image retention-preventing means is cancelled when accumulated elapsed-time during which the luminance difference is returned to approximately an original value elapses.