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. 14, 2015
Filed:
Apr. 11, 2012
Masahito Yamana, Hyogo, JP;
Hiroki Yabe, Osaka, JP;
Takahiro Koyanagi, Osaka, JP;
Abstract
Provided is a highly-reliable organic electroluminescence element in which loss of light due to surface plasmons generated on a metal surface is suppressed, the efficiency of light extraction to outside the element, and short circuits are unlikely to occur. The organic electroluminescence element includes a metal layer (), on a surface of which a nanosize uneven structure is provided by a nanoparticle arrangement structure () in which nanoparticles () are arranged in a planar fashion, and an organic layer () disposed on the uneven surface of the metal layer () and constituted by a plurality of layers including a light-emitting layer (). Each interface between the plurality of layers of the organic layer () is flatter than the uneven surface of the metal layer ().