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:
Jan. 06, 2015
Filed:
Sep. 14, 2012
Takeshi Nakatsuka, Kanagawa, JP;
Yoshimasa Bando, Kanagawa, JP;
Kiyoshi Sugiyama, Kanagawa, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
The present invention relates to a method for producing an organic electroluminescence element, comprising an organic layer between an anode and a cathode of the organic electroluminescence element by a wet film-forming method by using a composition containing an organic electroluminescence element material and a solvent in any one environment of the following film formation environments 1 to 3, and drying the formed film: film formation environment 1: a carbon dioxide concentration of 0.7 g/mor less and an oxygen concentration of 18 to 22 vol %, film formation environment 2: a sulfur oxide concentration of 2.2 μg/mor less and an oxygen concentration of 18 to 22 vol %, and film formation environment 3: a nitrogen oxide concentration of 3.1 μg/mor less and an oxygen concentration of 18 to 22 vol %.