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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 11778908 B1

PDFFull Text
Date of Patent:
Oct. 03, 2023

Filed:

Nov. 14, 2019

Organic electroluminescent devices

Applicants:

Kunshan Go-visionox Opto-electronics Co., Ltd., Kunshan, CN;

Tsinghua University, Beijing, CN;

Inventors:

Lian Duan, Kunshan, CN;

Xiaozeng Song, Kunshan, CN;

Dongdong Zhang, Kunshan, CN;

Jinbei Wei, Kunshan, CN;

Assignees:

KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD., Kunshan, CN;

TSINGHUA UNIVERSITY, Beijing, CN;

Attorney:

KILPATRICK TOWNSEND & STOCKTON

Primary Examiner:

Jay Yang

Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07D 209/86 (2006.01); C09K 11/06 (2006.01); C07D 403/10 (2006.01); C07C 211/54 (2006.01); C07C 13/72 (2006.01); C07F 9/6521 (2006.01); C07C 15/38 (2006.01); C07F 9/53 (2006.01); C07D 401/14 (2006.01); C07D 471/04 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07C 13/72 (2013.01); C07C 15/38 (2013.01); C07C 211/54 (2013.01); C07D 209/86 (2013.01); C07D 401/14 (2013.01); C07D 403/10 (2013.01); C07D 471/04 (2013.01); C07F 9/5329 (2013.01); C07F 9/6521 (2013.01); C09K 11/06 (2013.01); H10K 85/633 (2023.02); H10K 85/636 (2023.02); H10K 85/654 (2023.02); C07C 2603/44 (2017.05); C07C 2603/97 (2017.05); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 85/626 (2023.02); H10K 2101/10 (2023.02);
Abstract

The present disclosure relates to display technologies, and particularly discloses an organic electroluminescent device. This organic electroluminescent device includes a light-emitting layer, the light-emitting includes an exciplex composed of a donor molecule and an acceptor molecule, and a wide band gap material for increasing the inter-molecular spacing between the donor molecule and the acceptor molecule. According to the device of the present disclosure, the degree of orbital overlap of HOMO and LUMO of the formed exciplex and the singlet-triplet energy level difference can be reduced, the reverse intersystem crossing rate (k) of the exciplex host can be increased, the Föster energy transferred to the guest molecule can be enhanced, and the efficiency and the lifetime of the device can be improved.

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