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:
Sep. 19, 2000
Filed:
Nov. 13, 1997
Applicant:
Inventors:
Jean-Luc Grand-Clement, Rousset, FR;
Axel Jager, Sussargues, FR;
Assignee:
Pixtech S.A., Rousset, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313497 ; 313422 ;
Abstract
The present invention relates to a flat color display screen including a cathode associated with an electron extraction grid, an anode provided with at least two types of phosphor elements, all polarized to a same potential, and at least two additional superposed grids, positioned on the extraction grid, and each provided with holes defining sub-pixels associated with each of the colors. Each additional grid is associated with a color and some of the holes thereof are of smaller diameter than the coaxially corresponding holes of the other additional grids, for activating the sub-pixels of the corresponding color.