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.

Date of Patent:
Jul. 20, 2010

Filed:

Apr. 25, 2006
Applicants:

Tatsuya Igarashi, Kanagawa, JP;

Takeshi Murakami, Kanagawa, JP;

Ikuo Kinoshita, Kanagawa, JP;

Inventors:

Tatsuya Igarashi, Kanagawa, JP;

Takeshi Murakami, Kanagawa, JP;

Ikuo Kinoshita, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01);
U.S. Cl.
CPC ...
Abstract

An organic electroluminescent device comprising: a pair of electrodes comprising a positive electrode and a negative electrode; and a plurality of organic compound layers including a light emitting layer between the pair of electrodes, wherein at least one layer containing a metal complex having a tridentate or more ligand is provided between the light emitting layer and the negative electrode.


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