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:
Jan. 12, 2010
Filed:
Jul. 26, 2005
Chang Hae Kim, Daejeon-si, KR;
Joung Kyu Park, Daejeon-si, KR;
Sang Kee Kim, Gwangjoo-si, KR;
Chung Ryeol Kim, Gwangjoo-si, KR;
Kyoung Jae Choi, Choongchung-do, KR;
Chang Hae Kim, Daejeon-si, KR;
Joung Kyu Park, Daejeon-si, KR;
Sang Kee Kim, Gwangjoo-si, KR;
Chung Ryeol Kim, Gwangjoo-si, KR;
Kyoung Jae Choi, Choongchung-do, KR;
LG Innotek Co., Ltd., Seoul, KR;
Korea Research Institute of Chemical Technology, Daejeon, KR;
Abstract
Disclosed are a phosphor, which a light emitting device using the phosphor, and a method for producing the phosphor, which allows to control color coordinates, color temperatures and color rendering indexes by shifting a main emission peak without a decrease in light emission luminosity by changing the concentration of an activator included in a phosphor. By this structure, it is possible to actively control the state of white light according to use, thereby enhancing user convenience.