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. 01, 2011
Filed:
Aug. 20, 2004
Emiko Kambe, Tokyo, JP;
Akira Ebisawa, Tokyo, JP;
Satoshi Shirai, Tokyo, JP;
Masahiro Shinkai, Tokyo, JP;
Tetsushi Inoue, Tokyo, JP;
Emiko Kambe, Tokyo, JP;
Akira Ebisawa, Tokyo, JP;
Satoshi Shirai, Tokyo, JP;
Masahiro Shinkai, Tokyo, JP;
Tetsushi Inoue, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
Organic EL elements provided with a substrate, a first electrode layerand a second electrode layersituated in a mutually opposing manner on one side of the substrate, and a luminescent layersituated between the electrode layers, wherein one of the first electrode layerand the second electrode layeris a hole injection electrode layer and the other is an electron injection electrode layer, and there is formed in the luminescent layera modified sectionwhich contains an organic polymer compound different from the organic compound composing the luminescent layer, in bias toward the electron injection electrode layer.