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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 12232414 B1

PDFFull Text
Date of Patent:
Feb. 18, 2025

Filed:

Apr. 13, 2022

Aromatic amine derivatives and organic electroluminescent elements using same

Applicant:

Idemitsu Kosan Co., Ltd., Tokyo, JP;

Inventor:

Tomoki Kato, Chiba, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Dawn L Garrett

Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07D 209/86 (2006.01); C07D 307/91 (2006.01); C07D 333/76 (2006.01); C07D 405/12 (2006.01); C09K 11/06 (2006.01); H05B 33/14 (2006.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01);
U.S. Cl.
CPC ...
H10K 85/633 (2023.02); C07D 209/86 (2013.01); C07D 307/91 (2013.01); C07D 333/76 (2013.01); C07D 405/12 (2013.01); C09K 11/06 (2013.01); H10K 85/636 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1022 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1088 (2013.01); H05B 33/14 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 85/615 (2023.02); H10K 85/626 (2023.02);
Abstract

An OLED material may reduce the driving voltage of an OLED and/or increase the device lifetime compared to conventional OLED materials, specifically an aromatic amine, N(Ar)(Ar)(Ar), wherein Aris of formula (II) Lbeing a single bond or arylene, Rto Rbeing alkyl, aryl, etc., Rand Roptionally being bonded to form a ring, o being 0 to 3, and p being 0 to 4, wherein Aris of formula (III) and Aris aryl or of formula (III) X is NR, O, or S, and Rand Rto Rbeing alkyl, aryl, etc., R's, R's, or R's adjacent to each other, or Rand Roptionally being bonded to form a ring, n being 2 to 4 when X is NR, and 0 to 4 when X is O or S, q is 0 to 3, r and s are independently 0 to 4.

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