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:
Nov. 23, 2021
Filed:
Mar. 17, 2016
Nippon Hoso Kyokai, Tokyo, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Hirohiko Fukagawa, Tokyo, JP;
Takahisa Shimizu, Tokyo, JP;
Katsuyuki Morii, Osaka, JP;
Munehiro Hasegawa, Osaka, JP;
Syun Gohda, Osaka, JP;
Nippon Hoso Kyokai, Tokyo, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Abstract
An organic thin film that imparts an excellent electron injection property when it is used as an electron injection layer of an organic EL device and a method for producing the organic thin film are provided. An organic thin film at least includes: a first material which is an organic material having an acid dissociation constant pKa of 1 or greater; and a second material which transports an electron. The first material is at least one selected from the group consisting of tertiary amines, phosphazene compounds, guanidine compounds, heterocyclic compounds containing an amidine structure, hydrocarbon compounds having a ring structure, and ketone compounds.