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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 12774284 B1

PDFFull Text
Date of Patent:
Oct. 27, 2026

Filed:

Dec. 03, 2021

Electroluminescent device

Applicant:

Beijing Summer Sprout Technology Co., Ltd., Beijing, CN;

Inventors:

Le Wang, Beijing, CN;

Chi Yuen Raymond Kwong, Beijing, CN;

Qiang Wang, Beijing, CN;

Han Zhang, Beijing, CN;

Junfei Wang, Beijing, CN;

Menglan Xie, Beijing, CN;

Chuanjun Xia, Beijing, CN;

Assignee:

BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD., Beijing, CN;

Attorney:

KDW FIRM PLLC

Primary Examiner:

Michael M Dollinger

Int. Cl.
CPC ...
C07D 487/16 (2006.01); C07D 209/94 (2006.01); C07D 471/22 (2006.01); C07D 487/22 (2006.01); C07D 491/06 (2006.01); C07D 491/22 (2006.01); C07D 495/06 (2006.01); C07D 495/22 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
C07D 487/16 (2013.01); C07D 209/94 (2013.01); C07D 471/22 (2013.01); C07D 487/22 (2013.01); C07D 491/06 (2013.01); C07D 491/22 (2013.01); C07D 495/06 (2013.01); C07D 495/22 (2013.01); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); C07B 2200/05 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02); H10K 2101/90 (2023.02);
Abstract

Provided is an electroluminescent device. The electroluminescent device includes an anode, a cathode, and an organic layer disposed between the anode and the cathode, wherein the organic layer at least comprises a first compound having a structure of H-L-Arand a second compound having a structure of H-L-Ar. These new compound combinations can be used as host materials in electroluminescent devices. These new compound combinations can greatly improve the lifetime of the device and provide the device with better performance. Further provided is a display assembly including the electroluminescent device.

Find Patent Forward Citations

Wang, Le. (2026). Electroluminescent device (U.S. Patent No. 12774284). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12774284

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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