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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 12563887 B1

PDFFull Text
Date of Patent:
Feb. 24, 2026

Filed:

Apr. 28, 2022

Light-emitting device with electron transport layer and intervening layer, manufacturing method thereof, display substrate and display apparatus

Applicants:

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

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

Inventor:

Zhigao Lu, Beijing, CN;

Assignees:

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

BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;

Attorney:

HOUTTEMAN LAW LLC

Primary Examiner:

Quoc D Hoang

Int. Cl.
CPC ...
H10K 50/16 (2023.01); H10K 50/15 (2023.01); H10K 71/12 (2023.01); H10K 71/60 (2023.01); H10K 85/60 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/16 (2023.02); H10K 50/15 (2023.02); H10K 71/12 (2023.02); H10K 71/60 (2023.02); H10K 85/615 (2023.02); H10K 85/633 (2023.02); H10K 85/6572 (2023.02); H10K 2102/351 (2023.02);
Abstract

A light-emitting device including a first electrode and a second electrode opposite to each other, and a light-emitting layer and an electron transport layer therebetween, where the electron transport layer is between the first electrode and the light-emitting layer, a material of the electron transport layer includes a first metal oxide, the light-emitting device further includes an intervening layer on a side of the electron transport layer, the intervening layer including a second metal element, a form the second metal element in the intervening layer includes a form chemically bonded to the first metal oxide and a form of a metal simple substance; a content of the second metal element in the second form is greater than a content of the second metal element in the first form; and the second metal element has an activity greater than an activity of the metal element in the first metal oxide.

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Lu, Zhigao. (2026). Light-emitting device with electron transport layer and intervening layer, manufacturing method thereof, display substrate and display apparatus (U.S. Patent No. 12563887). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12563887

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

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