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. 05, 2015
Filed:
Nov. 13, 2009
Jun-gi Jang, Daejeon, KR;
Sang-young Jeon, Daejeon, KR;
Seong-so Kim, Paju-si, KR;
Chang-hwan Kim, Daejeon, KR;
Jun-Gi Jang, Daejeon, KR;
Sang-Young Jeon, Daejeon, KR;
Seong-So Kim, Paju-si, KR;
Chang-Hwan Kim, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention provides an organic light emitting device including an organic layer of two or more organic layers including a first electrode, a second electrode and an emission layer disposed between the two electrodes, wherein the organic layer includes a first injection or transport layer including a material having a LUMO energy level of −4 eV or lower and a second hole injection or transport layer including a material having a HOMO energy level of −4 eV or lower and a material having a LUMO energy level of −4 eV or lower, which is in contact with the first hole injection or transport layer and a method for manufacturing the organic light emitting device.