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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.:

US 10593884 B1

PDFFull Text
Date of Patent:
Mar. 17, 2020

Filed:

Jan. 04, 2016

Organic electroluminescent device

Applicant:

Hodogaya Chemical Co., Ltd., Tokyo, JP;

Inventors:

Norimasa Yokoyama, Tokyo, JP;

Shuichi Hayashi, Tokyo, JP;

Takeshi Yamamoto, Tokyo, JP;

Naoaki Kabasawa, Tokyo, JP;

Daizou Kanda, Tokyo, JP;

Kazunori Togashi, Tokyo, JP;

Shunji Mochizuki, Tokyo, JP;

Assignee:

Hodogaya Chemical Co., Ltd., Tokyo, JP;

Attorneys:

Locke Lord LLP

James E. Armstrong, IV

Nicholas J. DiCeglie, Jr.

Primary Examiner:

Gregory D Clark

Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01); C07D 401/10 (2006.01); C07C 211/54 (2006.01); C09K 11/06 (2006.01); C07C 211/61 (2006.01); C07D 209/88 (2006.01); C07C 211/60 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0059 (2013.01); C07C 211/54 (2013.01); C07C 211/61 (2013.01); C07D 209/88 (2013.01); C07D 401/10 (2013.01); C09K 11/06 (2013.01); H01L 51/006 (2013.01); H01L 51/0061 (2013.01); H01L 51/0067 (2013.01); H01L 51/50 (2013.01); C07C 211/60 (2013.01); H01L 51/001 (2013.01); H01L 51/0052 (2013.01); H01L 51/0056 (2013.01); H01L 51/0058 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); H01L 51/508 (2013.01); H01L 51/5012 (2013.01); H01L 51/5016 (2013.01); H01L 51/5064 (2013.01); H01L 51/5072 (2013.01); H01L 51/5088 (2013.01); H01L 51/5206 (2013.01); H01L 51/5221 (2013.01); H01L 2251/552 (2013.01);
Abstract

In the organic electroluminescent device having at least an anode, a hole injection layer, a first hole injection layer, a second hole injection layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and an electron acceptor. In the formula, Arto Armay be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.

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