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:
Nov. 27, 2001
Filed:
Mar. 06, 2000
Applicant:
Inventors:
Assignee:
Samsung SDI Co., LTD, Kyungki-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 1/162 ; C09K 1/154 ;
U.S. Cl.
CPC ...
C09K 1/162 ; C09K 1/154 ;
Abstract
A low-voltage excited blue phosphor is provided. The phosphor comprises a matrix represented by general formula ZnO.Ga,O,, and Bi doped in the matrix. To prepare the phosphor, ZnO, Ga,O,, Bi compound, and a flux are mixed to produce a mixture, and the mixture is fired at 1100-1300° C. to produce a fired material. Then the fired material is milled, and washed with an acid. The washed material is fired at 800-1100° C. and sieved to produce the blue phosphor.