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:
Oct. 31, 1989
Filed:
Oct. 16, 1987
Applicant:
Inventors:
Takahiro Fuse, Tokyo, JP;
Koji Yamagishi, Tokyo, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340784 ; 340703 ; 358241 ; 358236 ;
Abstract
An image display apparatus in which segment electrodes of a liquid crystal panel are extracted or accessed upward and downward alternately one by one, relative to the panel. A luminance signal is alternately A/D-converted by two A/D converters, and the segment electrodes extracted upward and downward are respectively driven in accordance with A/D-converted outputs from the two A/D converters.