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:
Jan. 27, 2004
Filed:
Oct. 24, 2000
Applicant:
Inventors:
Eric Compain, Asperes, FR;
Hervé Sigal, Montpellier, FR;
Assignee:
Pixtech, S.A., Rousset, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/900 ;
U.S. Cl.
CPC ...
H05B 3/900 ;
Abstract
A flat display screen including a.cathode provided with field effect electron emission means, a cathodoluminescent anode placed opposite to the cathode, an extraction grid associated with the cathode, and at least one filtering grid, permeable to electron bombardment and biased to forbid parasitic ions, generated on one side of this filtering grid, to reach the cathode or the anode located on the other side.