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:
May. 17, 2011
Filed:
Jul. 25, 2005
Applicant:
Young Rag DO, Seoul, KR;
Inventor:
Young Rag Do, Seoul, KR;
Assignees:
Other;
PSI Co., Ltd., Suwon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); H01J 63/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is an LED device which comprises a light-emitting diode (LED) and a laminate formed on the LED, the laminate consisting of a substrate and a phosphor thin film laminated on the substrate, wherein the phosphor thin film has a two-dimensional nanoperiodic structure formed in a forward direction of the thin film and has an extinction coefficient of 10or less. The LED device has higher luminescent efficiency and luminance than conventional LED devices. In addition, since the LED device uses no slurry and a lesser amount of phosphor than conventional LED devices, it is advantageous in terms of optical homogeneity and reduced costs.