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:
Dec. 15, 1992
Filed:
Feb. 24, 1992
Applicant:
Inventors:
Toshiro Wakabayashi, Tokyo, JP;
Hiroshi Hada, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340793 ; 340767 ;
Abstract
A method for displaying an image with multilevel brightness by using an image display device in which an image is displayed by sequentially activating scan lines one by one, and one complete display image is formed by at least a plurality of continuous frames or fields. A brightness of the whole of the display screen is changed in units of one frame or field, so that each display pixel can have brightness levels which are respectively defined by combinations of brightness levels given by an input display data and brightness levels of the whole of the display screen.