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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 11751476 B1

PDFFull Text
Date of Patent:
Sep. 05, 2023

Filed:

May. 24, 2021

Electron buffering material and organic electroluminescent device comprising the same

Applicant:

Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;

Inventors:

Sang-Hee Cho, Gyeonggi-do, KR;

Jeong-Hwan Jeon, Gyeonggi-do, KR;

Hong-Yeop Na, Gyeonggi-do, KR;

Ji-Song Jun, Gyeonggi-do, KR;

Jae-Hoon Shim, Gyeonggi-do, KR;

Kyung-Hoon Choi, Gyeonggi-do, KR;

Chi-Sik Kim, Gyeonggi-do, KR;

Young-Jun Cho, Gyeonggi-do, KR;

Assignee:

Rohm and Haas Electronic Materials Korea Ltd.;

Attorney:

G. Creston Campbell

Primary Examiner:

Dawn L Garrett

Int. Cl.
CPC ...
H10K 85/60 (2023.01); C07D 403/14 (2006.01); C07D 409/14 (2006.01); C07D 487/04 (2006.01); C07D 495/04 (2006.01); C07D 403/12 (2006.01); C07D 405/14 (2006.01); C07D 405/04 (2006.01); C07D 471/04 (2006.01); C07D 403/04 (2006.01); H10K 85/30 (2023.01); C07D 403/10 (2006.01); C09K 11/02 (2006.01); C09K 11/06 (2006.01); H10K 30/80 (2023.01); H10K 50/18 (2023.01); H10K 50/15 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07D 403/04 (2013.01); C07D 403/10 (2013.01); C07D 403/12 (2013.01); C07D 403/14 (2013.01); C07D 405/04 (2013.01); C07D 405/14 (2013.01); C07D 409/14 (2013.01); C07D 471/04 (2013.01); C07D 487/04 (2013.01); C07D 495/04 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); H10K 85/30 (2023.02); H10K 85/615 (2023.02); H10K 85/626 (2023.02); H10K 85/633 (2023.02); H10K 85/654 (2023.02); H10K 85/657 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); H10K 30/865 (2023.02); H10K 50/157 (2023.02); H10K 50/18 (2023.02);
Abstract

The present invention relates to an electron buffering material and an organic electroluminescent device comprising the same in an electron buffer layer. It is possible to provide an organic electroluminescent device having excellent luminous efficiency and lifespan characteristics by using the electron buffering material according to the present invention.

Find Patent Forward Citations

Quick Actions:

Cho, Sang-Hee. (2023). Electron buffering material and organic electroluminescent device comprising the same (U.S. Patent No. 11751476). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11751476

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