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. 11, 1992
Filed:
Oct. 31, 1990
Applicant:
Inventors:
Maria C van Uden, Eindhoven, NL;
Ronald van der Wilk, Eindhoven, NL;
Josephus J van Moorsel, Eindhoven, NL;
Werner D Kauwenberg, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313403 ; 445 37 ; 430-5 ;
Abstract
A display device having a pattern of conductors recessed on an electrode, thus reducing the risk of the pattern of conductors being damaged such as from a surface scratch. When the pattern of conductors and the plate are separated from each other by an insulating layer, the pattern of conductors screens the insulating layer from the electron beam. The method is characterized in that grooves are formed between the apertures, and an insulating layer and conducting layer are provided on the walls of the apertures and the grooves.