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:
Jul. 14, 2009
Filed:
Nov. 26, 2003
Se-hwan Son, Daejeon, KR;
Jun-gi Jang, Daejeon, KR;
Sang-young Jeon, Seoul, KR;
Seok-hee Yoon, Daejeon, KR;
Jae-chol Lee, Daejeon, KR;
Kong-kyeum Kim, Daejeon, KR;
Se-Hwan Son, Daejeon, KR;
Jun-Gi Jang, Daejeon, KR;
Sang-Young Jeon, Seoul, KR;
Seok-Hee Yoon, Daejeon, KR;
Jae-Chol Lee, Daejeon, KR;
Kong-Kyeum Kim, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed are organic electroluminescent devices employing materials of a low reduction potential in a layer functioning hole-injection. The organic electroluminescent devices may employ an anode material having a relatively low work function. Aluminum may be used in anode. During the operation, the organic electroluminescent devices may form a virtual electrode in their internal area, which enhances injection of carriers from a nearby electrode. Use of aluminum in the anode helps construction of cathode-emission organic electroluminescent devices.