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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 12219787 B1

PDFFull Text
Date of Patent:
Feb. 04, 2025

Filed:

Jan. 11, 2021

Qled devices, hole transport materials and producing methods thereof, and display devices

Applicant:

Boe Technology Group Co., Ltd., Beijing, CN;

Inventor:

Jingwen Feng, Beijing, CN;

Assignee:

BOE Technology Group Co., Ltd., Beijing, CN;

Attorney:

IPro, PLLC

Primary Examiner:

Ermias T Woldegeorgis

Int. Cl.
CPC ...
H01L 51/50 (2006.01); C08K 3/22 (2006.01); C08K 3/30 (2006.01); H10K 50/115 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 71/00 (2023.01); H10K 85/10 (2023.01); B82Y 20/00 (2011.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/15 (2023.02); C08K 3/22 (2013.01); C08K 3/30 (2013.01); H10K 50/115 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 71/00 (2023.02); H10K 85/10 (2023.02); B82Y 20/00 (2013.01); C08K 2003/2248 (2013.01); C08K 2003/2293 (2013.01); C08K 2003/3009 (2013.01); C08K 2201/001 (2013.01); C08K 2201/011 (2013.01); H10K 2102/351 (2023.02);
Abstract

The present invention provides QLED devices, hole transport materials and producing methods thereof, and display devices. A hole transport material includes a polymer, wherein the polymer is a single nanoparticle including at least a first metal compound and a second metal compound, the first metal compound and the second metal compound are linked via a covalent bond or a Van der Waals force, and valence band energy levels of the first metal compound and the second metal compound are different.

Find Patent Forward Citations

Feng, Jingwen. (2025). Qled devices, hole transport materials and producing methods thereof, and display devices (U.S. Patent No. 12219787). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12219787

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

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