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. 18, 2014
Filed:
Mar. 29, 2012
Shinichi Okamoto, Tokyo, JP;
Ryo Shoda, Tokyo, JP;
Shinichi Okamoto, Tokyo, JP;
Ryo Shoda, Tokyo, JP;
Toppan Printing Co., Ltd., , JP;
Abstract
One embodiment of the present invention is an organic electroluminescence element including: a substrate; a first electrode that is formed on the substrate; a luminescent medium layer that includes at least an organic luminescent layer and one or more functional layers other than the organic luminescent layer formed on the first electrode; and a second electrode that faces the first electrode with the luminescent medium layer interposed therebetween, wherein at least one functional layer formed between the first electrode and the organic luminescent layer includes first and second metal compounds and the functional layer is a functional layer in which a gradient is obtained at least partially in a film thickness direction for a ratio of the first metal compound to the second metal compound.