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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 12477905 B1

PDFFull Text
Date of Patent:
Nov. 18, 2025

Filed:

Apr. 20, 2023

Light emitting device, manufacturing method thereof, display device, photoelectric conversion device, electronic apparatus, illumination device, and moving body

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Yoshiaki Taguchi, Kanagawa, JP;

Koji Ishizuya, Kanagawa, JP;

Masahiko Sone, Kanagawa, JP;

Akinori Makaino, Kanagawa, JP;

Toshihiro Shoyama, Kanagawa, JP;

Kentaro Suzuki, Kanagawa, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Venable LLP

Primary Examiner:

Omar F Mojaddedi

Int. Cl.
CPC ...
H04N 23/53 (2023.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 59/38 (2023.01); H10K 59/65 (2023.01); H10K 59/80 (2023.01); H10K 59/90 (2023.01);
U.S. Cl.
CPC ...
H10K 59/122 (2023.02); H04N 23/53 (2023.01); H10K 59/1201 (2023.02); H10K 59/38 (2023.02); H10K 59/879 (2023.02);
Abstract

A light emitting device includes a plurality of first electrodes, an organic layer located above the plurality of first electrodes and including a light emitting layer, a second electrode located above the organic layer, and an insulating layer that separates the plurality of first electrodes from each other. An upper surface of each of the plurality of first electrodes includes an inner region in contact with the organic layer, and an outer region in contact with the insulating layer. The insulating layer includes an opening that defines the inner region, and a step located at a position away from the opening and overlapping the outer region.

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