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. 22, 2008
Filed:
Nov. 17, 2004
Ick-kyu Choi, Suwon-si, KR;
Seon-young Kwon, Suwon-si, KR;
Kyu-chan Park, Suwon-si, KR;
Yong-seon Kim, Suwon-si, KR;
Ick-Kyu Choi, Suwon-si, KR;
Seon-Young Kwon, Suwon-si, KR;
Kyu-Chan Park, Suwon-si, KR;
Yong-Seon Kim, Suwon-si, KR;
Samsung SDI Co., Ltd., Suwon-si, KR;
Abstract
The present invention provides a green light-emitting phosphor for a light-emitting device excited by vacuum ultraviolet rays, a light-emitting device, and a method of preparing the same. The green light-emitting phosphor is represented by the formula ABO:Mn, wherein A is Mg, Zn, Ca, or Li, B is Al or Ga, 0.6≦x≦1.4, and 0.01≦y≦0.1. The phosphor has excellent brightness, color purity, and discharging characteristics, and a short decay time. In one embodiment, the phosphor has a stable spinel structure, and is stable with regard to external influence such as heat, ion bombardment, and vacuum ultraviolet rays. Longer-lived light-emitting devices are also disclosed.