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:
Sep. 19, 2006
Filed:
Apr. 12, 1999
Akira Yamaguchi, Kanagawa-ken, JP;
Eiji Ogawa, Kanagawa-ken, JP;
Akira Yamaguchi, Kanagawa-ken, JP;
Eiji Ogawa, Kanagawa-ken, JP;
Fuji Photo Film Co., Ltd., Kanagawa-ken, JP;
Abstract
In a monochromatic image display system, the number of tone levels which can be expressed is multiplied. As a display device, a liquid crystal panelwhich can express each picture elementof a monochromatic image by three cellsandis employed. A tone number conversion processing meanscarries out a tone number conversion processing on an input original image signal Sorig according to the maximum number of tone levels which can be expressed by the liquid crystal panel, thereby obtaining a monochromatic image signal So. Luminance of the monochromatic image signal So is allotted to the cellsand. Time modulation is carried out on each cell by a time modulation meanswhich can express four tone levels (but tone level 0) so that each cell outputs allotted luminance. In this manner, the liquid crystal panelcan express thirteen tone levels (4×3+1=13) in total (tone level 0 inclusive).