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:
May. 01, 1990
Filed:
Dec. 29, 1987
Applicant:
Inventor:
Arne L Duwaer, Ossining, NY (US);
Assignee:
North American Philips Corp., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340784 ; 340719 ; 350333 ;
Abstract
In a matrix display device, such as an LCD-TV, supply of data signals to each one of an array of display elements is controlled by respective switching means in response to applied switching signals. Novel addressing circuitry is provided to achieve redundancy and avoid improper charge levels on non-selected switching means.