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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 12457873 B1

PDFFull Text
Date of Patent:
Oct. 28, 2025

Filed:

Oct. 15, 2021

Organic light-emitting device, display apparatus, photoelectric conversion apparatus, and electronic apparatus

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Hiroaki Sano, Kanagawa, JP;

Akira Okita, Kanagawa, JP;

Yojiro Matsuda, Kanagawa, JP;

Shoma Hinata, Kanagawa, JP;

Kentaro Ito, Tokyo, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Canon U.S.A., Inc. IP Division

Primary Examiner:

William B Partridge

Assistant Examiner:

David Paul Sedorook

Int. Cl.
CPC ...
H10K 59/32 (2023.01); H10F 39/00 (2025.01); H10K 50/856 (2023.01); H10K 50/858 (2023.01); H10K 59/38 (2023.01); H10K 59/65 (2023.01); H10K 59/80 (2023.01);
U.S. Cl.
CPC ...
H10K 59/32 (2023.02); H10F 39/8063 (2025.01); H10F 39/807 (2025.01); H10K 50/856 (2023.02); H10K 50/858 (2023.02); H10K 59/38 (2023.02); H10K 59/65 (2023.02); H10K 59/876 (2023.02); H10K 59/878 (2023.02); H10K 59/879 (2023.02);
Abstract

An organic light-emitting device includes, on an insulating layer, a first lower electrode, an upper electrode, and an organic compound layer disposed between the first lower electrode and the upper electrode, wherein the organic compound layer includes a first light-emitting layer, a second light-emitting layer disposed between the first light-emitting layer and the upper electrode, and a first organic compound layer disposed between the first light-emitting layer and the second light-emitting layer, the first organic compound layer includes a second organic compound layer containing an alkali metal, and a third organic compound layer disposed between the second organic compound layer and the upper electrode and containing a compound having a lowest unoccupied molecular orbital level energy of −5.0 eV or less, and an orthogonal projection of the first organic compound layer onto the insulating layer is smaller than an orthogonal projection of the first light-emitting layer onto the insulating layer.

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