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. 21, 1999
Filed:
Jun. 02, 1995
Applicant:
Inventor:
Soichi Sato, Ome, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 88 ; 345150 ;
Abstract
A CPU produces image data of RGB for defining a display image, and writes the image data in a memory. A display controller reads image data from the memory. A conversion table converts image data to voltage data corresponding to a voltage for displaying a color close to a color defined by the image data. The number of bits of voltage data is smaller than the number of bits of image data. The voltage data is converted by a D/A converter to an analog voltage which is in turn applied to an ECB type liquid crystal display device.