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.:

US 7126591 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 24, 2006

Filed:

Jul. 23, 2001
Applicants:

Shuichi Kagawa, Tokyo, JP;

Hiroaki Sugiura, Tokyo, JP;

Mariko Takahashi, Tokyo, JP;

Narihiro Matoba, Tokyo, JP;

Inventors:

Shuichi Kagawa, Tokyo, JP;

Hiroaki Sugiura, Tokyo, JP;

Mariko Takahashi, Tokyo, JP;

Narihiro Matoba, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image having a large contrast and excellent visibility to the viewer is displayed on an image display device used in the presence of light. A black-display characteristic specifying means generates a black-display characteristic specifying data indicating the brightness of the external light reflected from the surface of an image display means, which is obtained by operating an external-light brightness specifying bar to be displayed on the image display means. A black-approximated data calculating means calculates, based on the black-display characteristic specifying data, a black-approximated data related to at least one of luminance, chromaticity and tristimulus values in displaying black with the image display means. On receipt of an image data and the black-approximated data, a black correction means calculates a black-corrected image data, and displays an image on the image display means based on the black-corrected image data.


Find Patent Forward Citations

Kagawa, Shuichi. (2006). Image display device (U.S. Patent No. 7126591). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7126591

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