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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 11329234 B1

PDFFull Text
Date of Patent:
May. 10, 2022

Filed:

Sep. 25, 2019

Organic electroluminescent element, display device, lighting device, π-conjugated compound, and light-emitting thin film

Applicant:

Konica Minolta, Inc., Tokyo, JP;

Inventors:

Yasuo Miyata, Yokohama, JP;

Taketo Namikawa, Osaka, JP;

Hiroshi Kita, Hachioji, JP;

Assignee:

Merck Patent GmbH, Darmstadt, DE;

Attorney:

Lucas & Mercanti, LLP

Primary Examiner:

Douglas J McGinty

Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07D 413/14 (2006.01); C07D 219/02 (2006.01); C07D 241/48 (2006.01); C07F 5/02 (2006.01); C07F 7/10 (2006.01); C07D 401/10 (2006.01); C07D 265/38 (2006.01); C07D 487/04 (2006.01); C07D 403/12 (2006.01); C07D 241/46 (2006.01); C07D 409/10 (2006.01); C07D 417/10 (2006.01); H05B 33/20 (2006.01); C07D 403/10 (2006.01); C07D 279/22 (2006.01); C07D 209/86 (2006.01); C07D 307/91 (2006.01); C07D 333/76 (2006.01); H01L 51/50 (2006.01); C09K 11/06 (2006.01); C07D 401/12 (2006.01); C07F 7/08 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); C07D 209/86 (2013.01); C07D 219/02 (2013.01); C07D 241/46 (2013.01); C07D 241/48 (2013.01); C07D 265/38 (2013.01); C07D 279/22 (2013.01); C07D 307/91 (2013.01); C07D 333/76 (2013.01); C07D 401/10 (2013.01); C07D 401/12 (2013.01); C07D 403/10 (2013.01); C07D 403/12 (2013.01); C07D 409/10 (2013.01); C07D 413/14 (2013.01); C07D 417/10 (2013.01); C07D 487/04 (2013.01); C07F 5/02 (2013.01); C07F 5/027 (2013.01); C07F 7/0812 (2013.01); C07F 7/10 (2013.01); C09K 11/06 (2013.01); H01L 51/008 (2013.01); H01L 51/0071 (2013.01); H01L 51/0094 (2013.01); H01L 51/5004 (2013.01); H05B 33/20 (2013.01); C09K 2211/1018 (2013.01); C09K 2211/1022 (2013.01); H01L 51/0067 (2013.01); H01L 51/0074 (2013.01); H01L 51/0085 (2013.01); H01L 51/5016 (2013.01); H01L 51/5028 (2013.01); H01L 2251/5376 (2013.01); H01L 2251/552 (2013.01);
Abstract

An object of the present invention is to provide an organic electroluminescent element containing an organic layer interposed between an anode and a cathode, the organic layer containing at least one light emitting layer, wherein the at least one light emitting layer contains a π-conjugated compound having an electron donor portion and an electron acceptor portion in the molecule; the π-conjugated compound has a direction vector from an atom having a HOMO orbital in the electron donor portion to an electron cloud of the HOMO orbital, and a direction vector from an atom having a LUMO orbital in the electron acceptor portion to an electron cloud of the LUMO orbital, and the two direction vectors form an angle θ in the range of 90 to 180 degrees; and the π-conjugated compound has a plurality of the electron donor portions or a plurality of the electron acceptor portions.

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