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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 9905775 B1

PDFFull Text
Date of Patent:
Feb. 27, 2018

Filed:

Jan. 05, 2016

Organic electroluminescent device

Applicants:

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

Sfc Co., Ltd, Chungcheongbuk-do, KR;

Inventors:

Shuichi Hayashi, Tokyo, JP;

Naoaki Kabasawa, Tokyo, JP;

Shunji Mochiduki, Tokyo, JP;

Se-Jin Lee, Chungcheongbuk-do, KR;

Oun-gyu Lee, Chungcheongbuk-do, KR;

Bong-Ki Shin, Chungcheongbuk-do, KR;

Assignees:

HODOGAYA CHEMICAL CO., LTD., Tokyo, JP;

SFC CO., LTD, Chungcheongbuk-Do, KR;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

David S Blum

Int. Cl.
CPC ...
H01L 35/24 (2006.01); H01L 51/00 (2006.01); C07C 211/54 (2006.01); C07D 495/04 (2006.01); C07D 403/04 (2006.01); C07D 491/048 (2006.01); C07D 495/14 (2006.01); C09K 11/06 (2006.01); H01L 51/52 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0059 (2013.01); C07C 211/54 (2013.01); C07D 403/04 (2013.01); C07D 491/048 (2013.01); C07D 495/04 (2013.01); C07D 495/14 (2013.01); C09K 11/06 (2013.01); H01L 51/006 (2013.01); H01L 51/0067 (2013.01); H01L 51/0072 (2013.01); H01L 51/0085 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/185 (2013.01); H01L 51/5016 (2013.01); H01L 51/5064 (2013.01); H01L 51/5072 (2013.01); H01L 51/5206 (2013.01); H01L 51/5221 (2013.01);
Abstract

The present invention provides an organic electroluminescent device having at least an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer contains an arylamine compound having a specific structure, and the luminous layer contains an indenoindole derivative or a carbazole derivative having a specific structure. The organic EL device of the present invention is an organic EL device improved in luminous efficiency, driving voltage and durability.

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