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:
Nov. 17, 2015
Filed:
May. 31, 2013
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Mun Kyu Joo, Daejeon, KR;
Minsoo Kang, Daejeon, KR;
Jeamin Moon, Daejeon, KR;
Yun Hye Hahm, Daejeon, KR;
Seongsu Jang, Daejeon, KR;
Jina You, Daejeon, KR;
Jaein Lee, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/52 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5203 (2013.01); H01L 51/006 (2013.01); H01L 51/0058 (2013.01); H01L 51/0061 (2013.01); H01L 51/0062 (2013.01); H01L 51/0068 (2013.01); H01L 51/0072 (2013.01); H01L 51/506 (2013.01); H01L 51/5012 (2013.01); H01L 51/5068 (2013.01); H01L 51/0052 (2013.01); H01L 51/0059 (2013.01); H01L 51/0085 (2013.01); H01L 51/5016 (2013.01);
Abstract
An organic electroluminescent device includes an anode, a cathode, a light emitting layer provided between the anode and the cathode, a first organic material layer being in physical contact with the anode and doped with a p-type dopant, and a second organic material layer being in physical contact with the cathode and doped with a p-type dopant. The concentration of the p-type dopant in the first organic material layer is 50% by weight or more and less than 100% by weight.