Patent · US Expired

ZnS:Ag,A1 phosphor and method of making same

US6610217B2 · kind B2 · utility

0Cited by

3References

31Claims

0Family size

Assignee

OSRAM SYLVANIA Inc. · US

Inventors

Gregory A. Marking · Sayre, US
Courtney Spencer Warren · Waverly, US
Brian Payne · Sayre, US

Key dates

Filing date	Jul 23, 2001
Grant date	Aug 26, 2003
Priority date	—
Expiry date	Oct 18, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K11/642
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A ZnS:Ag,Al phosphor and method of making are described wherein the ZnS:Ag,Al phosphor exhibits a substantially polyhedral morphology and low particle agglomeration. The method of making includes the use of a mixed sodium chloride and alkaline-earth metal chloride flux. The resulting ZnS:Ag,Al phosphors may be made into finished CRT phosphors having improved CRT screen making properties.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.