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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 12655031 B1

PDFFull Text
Date of Patent:
Jun. 16, 2026

Filed:

Dec. 27, 2021

Composite electron transport material and preparation method therefor, and light-emitting diode

Applicant:

Tcl Technology Group Corporation, Huizhou, CN;

Inventor:

Wei Xu, Huizhou, CN;

Assignee:

TCL TECHNOLOGY GROUP CORPORATION, Huizhou, CN;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Ermias T Woldegeorgis

Int. Cl.
CPC ...
C01G 9/02 (2006.01); H10K 85/10 (2023.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); H10K 50/16 (2023.01); H10K 71/12 (2023.01); H10K 71/40 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
C01G 9/02 (2013.01); H10K 85/1135 (2023.02); H10K 85/115 (2023.02); H10K 85/151 (2023.02); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01P 2004/80 (2013.01); C01P 2004/84 (2013.01); C01P 2006/40 (2013.01); H10K 50/16 (2023.02); H10K 71/12 (2023.02); H10K 71/40 (2023.02); H10K 2102/361 (2023.02);
Abstract

Disclosed are a composite electron transport material and a preparation method therefor, and a light-emitting diode. The composite electron transport material includes a core and at least one shell coating the core. The core is made of an inorganic electron transport material; the shell is made of a material including a metal oxide; and a band gap of the metal oxide is wider than that of the inorganic electron transport material. In the composite electron transport material, by covering modification of the core by the shell, the band gap, the conduction band energy level, and the electrical conductivity of the inorganic electron transport material are improved.

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