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:
Mar. 11, 1980
Filed:
Feb. 07, 1978
Applicant:
Inventor:
Masashi Mizushima, Hachioji, JP;
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358241 ; 340793 ; 340802 ; 340781 ; 365111 ;
Abstract
A driver system of a display panel including a matrix of luminescent elements with a bi-stable operation condition comprises a circuit arrangement for combining a plurality of divided lighting periods to provide a gray-scale display and a circuit arrangement for increasing or decreasing the respective widths of the divided lighting periods in correlation with each other, whereby a control of luminance with gray-scale is provided.