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:
Mar. 24, 2009
Filed:
Sep. 26, 2002
Hyoung Yun OH, Seoul, KR;
Sung Koo Lee, Kyonggi-do, KR;
Chun Gun Park, Seoul, KR;
Jeong Dae Seo, Kyonggi-do, KR;
Myung Seop Kim, Seoul, KR;
Hyoung Yun Oh, Seoul, KR;
Sung Koo Lee, Kyonggi-do, KR;
Chun Gun Park, Seoul, KR;
Jeong Dae Seo, Kyonggi-do, KR;
Myung Seop Kim, Seoul, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
Disclosed is an organic electroluminescent device including a first electrode, a second electrode, and a light-emitting layer having a guest material of a red luminescent material and at least two host materials so as to be formed between the first and second electrodes. One of the host materials is a composite including the following structural formula: Moreover, one of the host materials can be a substituted or non-substituted quinoline derivative.