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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 12677590 B1

PDFFull Text
Date of Patent:
Jul. 07, 2026

Filed:

Nov. 19, 2020

Organic light-emitting diode and display panel

Applicant:

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

Inventors:

Lei Chen, Beijing, CN;

Lixia Qiu, Beijing, CN;

Assignee:

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

Attorney:

HOUTTEMAN LAW LLC

Primary Examiner:

Braelyn R Watson

Int. Cl.
CPC ...
H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/115 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/18 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
H10K 85/626 (2023.02); H10K 50/11 (2023.02); H10K 50/115 (2023.02); H10K 50/16 (2023.02); H10K 50/171 (2023.02); H10K 85/615 (2023.02); H10K 85/624 (2023.02); H10K 85/631 (2023.02); H10K 85/652 (2023.02); H10K 85/654 (2023.02); H10K 85/6565 (2023.02); H10K 85/6574 (2023.02); H10K 50/18 (2023.02); H10K 2101/40 (2023.02);
Abstract

The present disclosure provides an organic light-emitting diode and a display panel, the organic light-emitting diode including: a first electrode, a second electrode, a light-emitting layer, a hole blocking layer and an electron transport layer; the first electrode and the second electrode are oppositely arranged; the light-emitting layer is between the first electrode and the second electrode; the hole blocking layer is between the light-emitting layer and the second electrode; the electron transport layer is between the hole transport layer and the second electrode, wherein the energy level difference between the HOMO energy level of the hole blocking layer and the HOMO energy level of the light-emitting layer is larger than or equal to 0.1 eV, and the energy level difference between the HOMO energy level of the electron transport layer and the HOMO energy level of the hole blocking layer is larger than or equal to 0.1 eV.

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