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.:

US 7803287 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 28, 2010

Filed:

May. 23, 2007
Applicants:

Ru-shi Liu, Hsinchu County, TW;

Ivan Baginskiy, Hsinchu, TW;

Ting-shan Chan, Tainan County, TW;

Jenq-yang Chang, Taipei, TW;

Inventors:

Ru-Shi Liu, Hsinchu County, TW;

Ivan Baginskiy, Hsinchu, TW;

Ting-Shan Chan, Tainan County, TW;

Jenq-Yang Chang, Taipei, TW;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/70 (2006.01); C09K 11/55 (2006.01); C09K 11/54 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention is a yellow-green phosphor material with a high luminescence intensity. The present invention is suitable for excitation by ultraviolet or blue light. The phosphor material is made of a phosphate compound with a chemical formula of LiZnPO:M(0<x<0.2). The host lattice is LiZnPOand the luminescent center is Mx, which is a transition metal element. The present invention is easily and fast fabricated for mass production and has a fine color purity and a good thermal stability.


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