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. 19, 2002
Filed:
Jul. 24, 1998
Applicant:
Inventors:
Kenji Nakaya, Chiba, JP;
Isamu Kobori, Chiba, JP;
Masami Mori, Yamanashi, JP;
Kazutoshi Ohisa, Ibaraki, JP;
Michio Arai, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 3/326 ;
U.S. Cl.
CPC ...
H05B 3/326 ;
Abstract
The invention provides an organic EL device comprising a hole injecting electrode, and at least one organic layer disposed between the electrodes, wherein the electron injecting electrode is comprised of an AlLi alloy containing 0.4-14 at % of lithium deposited by a sputtering process. This improves the film formability and adhesion at the interface between the electron injecting electrode and the organic layer, realizing an organic EL device featuring a high luminance, high efficiency, long lifetime, and high display quality.