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. 26, 2011
Filed:
Sep. 26, 2007
Applicants:
Ryuji Ishii, Chino, JP;
Masaki Ito, Fujimi-cho, JP;
Inventors:
Ryuji Ishii, Chino, JP;
Masaki Ito, Fujimi-cho, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); H01L 51/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
An organic electroluminescence device includes a pair of electrodes; a hole injection layer and a luminescent layer disposed between the pair of electrodes; and a mixing-preventing layer disposed between the hole injection layer and the luminescent layer and preventing mixing of the material constituting the hole injection layer and the material constituting the luminescent layer.