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:
Aug. 22, 2006
Filed:
Mar. 05, 2003
Applicants:
Hiroshi Matsuki, Gifu, JP;
Yoshitaka Nishio, Hirakata, JP;
Inventors:
Hiroshi Matsuki, Gifu, JP;
Yoshitaka Nishio, Hirakata, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An organic EL device is fabricated by a novel method to reduce the occurrence of poor luminescence in the organic EL device. An anode layer, a hole transporting layer, a luminescent layer, an electron transporting layer, and a cathode layer are laminated in this order on a substrate to form an organic EL device. In the organic EL device, the hole transporting layer is increased in thickness so that foreign particles adhering on the anode layer are substantially covered with the hole transporting layer.