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:
Sep. 15, 2015
Filed:
Dec. 05, 2012
Panasonic Corporation, Osaka, JP;
Dyden Corporation, Fukuoka, JP;
Kenji Okumoto, Kyoto, JP;
Gosuke Sakamoto, Kyoto, JP;
Masaomi Shibata, Osaka, JP;
Izumi Kakinoki, Fukuoka, JP;
Masataka Watanabe, Fukuoka, JP;
Tomoko Matoba, Fukuoka, JP;
Mitsuharu Noto, Fukuoka, JP;
Yasuyuki Goto, Fukuoka, JP;
JOLED INC., Tokyo, JP;
DYDEN CORPORATION, Fukuoka, JP;
Abstract
The present invention is to provide a method of favorably forming an organic EL device with the inverted structure by the wet process. On that account, an organic EL device includes a cathode, an electron injection layer, a light emitting layer, a hole transport layer, a hole injection layer, an anode are formed in this order on a substrate. The electron injection layer is formed by applying ink between banks and drying the ink. The ink is formed by dissolving a polymer compound having an organic phosphine oxide skeleton in an alcohol solvent. The light emitting layer is formed by applying ink between components of the bank and the drying the ink. The ink is formed by dissolving material for light emitting layer such as polyphenylene vinylene (PPV) derivative or polyfluorene derivative in a nonpolar solvent.