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:
Feb. 01, 2000
Filed:
Feb. 15, 1996
Applicant:
Inventor:
Bernard Bancal, Luynes, FR;
Assignee:
Pixtech S.A., Rousset, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 74 ; 345 76 ; 345208 ; 3151693 ;
Abstract
A device for controlling an electrode of a flat display screen includes a first electrode constituting a microtip cathode, a second electrode constituting an anode provided with phosphor elements and a gate that is arranged in rows. At least one of the electrodes is arranged in columns. The device includes circuitry for individually addressing each column and for interrupting the biasing of a column as soon as its charge reaches a threshold voltage corresponding to a desired luminescence value.