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:
Sep. 05, 2002
Applicant:
Inventors:
Xianzhong Chen, Sayre, PA (US);
Robert L. Stevens, Towanda, PA (US);
Judy A. Belinski-Wolfe, Towanda, PA (US);
Fuqiang Huang, Evanston, IL (US);
Chen Wen Fan, Sayre, PA (US);
Michael A. Maxwell, Corning, NY (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09K 1/156 ; G09K 1/154 ;
U.S. Cl.
CPC ...
G09K 1/156 ; G09K 1/154 ;
Abstract
An orange-yellow-emitting zinc sulfide-based electroluminescent phosphor is described wherein the phosphor has a brightness of greater than 10 foot-Lamberts. More particularly, the phosphor has a brightness of at least about 13 foot-Lamberts and an x color coordinate from about 0.51 to about 0.56 and a y color coordinate from about 0.42 to about 0.48. The zinc sulfide phosphor is activated with manganese, copper, chlorine, and a metal selected from gold and antimony.