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:
Oct. 15, 2013
Filed:
Mar. 11, 2009
Xianzhong Chen, Sayre, PA (US);
Shellie Kaye Northrop, Sayre, PA (US);
Chen-wen Fan, Sayre, PA (US);
Xianzhong Chen, Sayre, PA (US);
Shellie Kaye Northrop, Sayre, PA (US);
Chen-Wen Fan, Sayre, PA (US);
Global Tungsten and Powders Corp., Towanda, PA (US);
Abstract
An electroluminescent phosphor comprising ZnS:Mn is disclosed. Also disclosed are ZnS:Mn electroluminescent phosphors that are free of or substantially free of copper, and/or wherein the phosphor has a D50 size of less than about 5 μm. In addition, a method for preparing a ZnS:Mn phosphor is disclosed, comprising the steps of contacting at least a portion of each of a first solution comprising a Zncompound, a manganese source, and a second solution comprising a Ssource agent; and then heating the mixture at a temperature and for a time sufficient to form a phosphor.