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. 18, 2001
Filed:
Jan. 18, 2000
Friederike Picht, Düren, DE;
Wolfram Czarnojan, Aachen, DE;
Hans-Otto Jungk, Aachen, DE;
Gerard H. J. Van Iersel, Eindhoven, NL;
Miguel Boutelje, Eindhoven, NL;
Pierre L. H. M. Cobben, Eindhoven, NL;
Antonius A. M. Van Weert, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A display screen comprising a phosphor composition which includes a phosphor and a phosphor coating with a group of metal-oxygen compounds, the group of metal-oxygen compounds containing an yttrium-oxygen compound, is characterized by a surprising improvement in picture brightness, color purity and adhesion of the phosphor composition to the glass of the display screen. The phosphor layer exhibits a high packing density of the phosphor material. The phosphor layer further exhibits a good homogeneity and is free from “pinholes”. In addition, the structured phosphor layer shows a high definition.