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:
Dec. 09, 2014
Filed:
Apr. 03, 2006
Tetsuo Shibanuma, Kanagawa, JP;
Eisuke Matsuda, Kanagawa, JP;
Yasunori Kijima, Tokyo, JP;
Hirofumi Nakamura, Kanagawa, JP;
Shigeyuki Matsunami, Kanagawa, JP;
Tetsuo Shibanuma, Kanagawa, JP;
Eisuke Matsuda, Kanagawa, JP;
Yasunori Kijima, Tokyo, JP;
Hirofumi Nakamura, Kanagawa, JP;
Shigeyuki Matsunami, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An organic electroluminescence device including a lower electrode disposed on a substrate, an organic layer having at least a light emission layer and disposed above the lower electrode, and upper electrode having a transparent conductive film and disposed above the organic layer, in which the device has an electron injecting layer between the organic layer and the upper electrode. The electron injecting layer has a buffer layer comprising an insulative material and a mixed layer comprising an organic material that has an electron transporting property and a metal material that has an electron injecting property.