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:
Jun. 16, 1987
Filed:
Nov. 26, 1984
Applicant:
Inventors:
Robert Hehlen, Morangis, FR;
Michel Hareng, La Norville, FR;
Serge Le Berre, Dampierre, FR;
Bruno Mourey, Boulogne Billancourt, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3503 / ; 350333 ; 340778 ; 358230 ;
Abstract
The invention relates to controlling a matrix access display device comprising a layer of material reacting to a combined thermal and electric effect. According to the invention, the DC video control voltage is transformed into an AC voltage by switching the potentials of the electrodes applying the electric control field.