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:
Apr. 07, 2009
Filed:
Jul. 06, 2006
Xiaoqing Zeng, Yongin-si, KR;
Seoung-jae Im, Seoul, KR;
Hyung-kun Kim, Suwon-si, KR;
Abstract
Provided is a silicophosphate-based phosphor of Formula 1 and a light-emitting device including the same:[(SrBaCaMgEuMn)Si(PO)  (1)where 0<x≦0.2, 0≦y≦0.2, 0≦a≦0.2, 0≦b≦0.5, and 0≦c≦0.5. The silicophosphate-based phosphor of Formula 1 is chemically and thermally stable and can be easily prepared. The phosphor exhibits a high luminous property when excited by a UV LED excitation light source having a wavelength of 360-420 nm, and emits light having a wavelength of 570 to 630 nm. Accordingly, the silicophosphate-based phosphor can be used in a LED, a lamp, a self-emission type liquid crystal display device, or the like. In particular, when a white LED includes the silicophosphate-based phosphor, the color rendering index of the white LED is high and thus an excellent color rendering property can be obtained.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile