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. 08, 2012
Filed:
Sep. 17, 2007
Applicants:
Sun-jin Yun, Daejeon, KR;
Jungwook Lim, Daejeon, KR;
Hyun-tak Kim, Daejeon, KR;
Inventors:
Assignee:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 33/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is an electro-luminescent device (ELD) including a metal-insulator transition (MIT) layer. The ELD includes: a substrate; a EL phosphor layer positioned on the substrate and comprising luminescent center ions generating light; the MIT layer disposed on a surface of the EL phosphor layer and being abruptly changed from an insulator to a metal according to a variation of a voltage; a first insulator adhered to the MIT layer to distribute a voltage applied from an external source; and a second insulator disposed on the other side of the EL phosphor layer.