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. 22, 1991
Filed:
Sep. 01, 1988
Applicant:
Inventor:
Hirofumi Fukuoka, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ; G09G / ;
U.S. Cl.
CPC ...
340793 ; 340703 ; 340784 ;
Abstract
A display device of a type for displaying in two levels is so controlled as to display images of different colors by hatching according to different patterns such that images of different colors can be distinguished. In order to prevent distortion of image caused by hatching, hatching corresponding to any particular color can be selectively prevented. With a binary conversion circuit with adjustable reference voltages, an image with various combinations of analog color signals can also be displayed.