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.

Date of Patent:
May. 15, 1984

Filed:

Dec. 31, 1981
Applicant:
Inventors:

Jean F Clerc, Meylan, FR;

Jacques Robert, Ville d'Avray, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340752 ; 340779 ; 340784 ; 350333 ;
Abstract

A matrix display device having two groups of row electrodes and a process for the control thereof. This device is constituted by two insulating walls made from a material having several zones distributed in matrix-like manner, a first group of p rows of parallel electrodes covering one of the walls and a second group of q columns of parallel electrodes covering the other wall. A zone x.sub.i y.sub.j is defined by the overlap of row x.sub.i and column y.sub.j in which i varies from l to p and j from l to q. The said device also comprises a third group of p rows of electrodes, identical to the first group and placed on the second group, while being electrically insulated from the latter by an insulating layer.


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