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:
Apr. 12, 2005
Filed:
Jan. 16, 2003
Seok-hee Yoon, Daejeon, KR;
Jae-soon Bae, Daejeon, KR;
Youn-gu Lee, Seoul, KR;
Sung-gap Im, Daejeon, KR;
Jae-chol Lee, Daejeon, KR;
Ji-eun Kim, Daejeon, KR;
Kong-kyeom Kim, Daejeon, KR;
Se-hwan Son, Daejeon, KR;
Young-kyu Han, Daejeon, KR;
Seok-Hee Yoon, Daejeon, KR;
Jae-Soon Bae, Daejeon, KR;
Youn-Gu Lee, Seoul, KR;
Sung-Gap Im, Daejeon, KR;
Jae-Chol Lee, Daejeon, KR;
Ji-Eun Kim, Daejeon, KR;
Kong-Kyeom Kim, Daejeon, KR;
Se-Hwan Son, Daejeon, KR;
Young-Kyu Han, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Novel materials for electron injection/transportation and emitting layers can greatly improve the stability of an organic electroluminescent display. Electroluminescent displays incorporating these materials produce blue light at low voltage levels. These novel organic materials include compounds in which 1 to 2 imidazole functional groups are introduced in the 2 or 2,6-site of 9,10 substituted anthracene. An organic electroluminescent display with an organic compound layer of these materials has high efficiency, thermal stability, operationally stability and maintains driving voltage before and after operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile