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:
Aug. 28, 1990
Filed:
Jan. 14, 1988
Applicant:
Inventor:
Shigeru Yabuuchi, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340703 ; 358168 ;
Abstract
A display system calculates the value of luminance of a screen of a display unit for each display frame and dynamically controls the luminance of the display screen on the basis of the calculated luminance value while taking the surrounding brightness, thereby providing a display appearance easiest to see.