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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 12402472 B1

PDFFull Text
Date of Patent:
Aug. 26, 2025

Filed:

Nov. 07, 2019

Light-emitting element and display device, and production method for light-emitting element

Applicant:

Sharp Kabushiki Kaisha, Sakai, JP;

Inventor:

Yoshihiro Ueta, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, JP;

Attorney:

ScienBiziP, P.C.

Primary Examiner:

Eric W Jones

Int. Cl.
CPC ...
H10K 50/16 (2023.01); H10K 50/818 (2023.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 59/80 (2023.01); H10K 71/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/16 (2023.02); H10K 59/122 (2023.02); H10K 71/00 (2023.02); H10K 50/818 (2023.02); H10K 59/1201 (2023.02); H10K 59/80518 (2023.02);
Abstract

A light-emitting element includes: a first electrode; a first carrier transport layer in electrical contact with the first electrode; a second electrode separated from the first electrode; a second carrier transport layer in electrical contact with the second electrode; and a light-emitting layer, wherein at least part of the light-emitting layer overlaps on part of the first carrier transport layer, and part of the light-emitting layer overlaps on part of the second carrier transport layer, and in plan view, the first carrier transport layer and the second carrier transport layer face each other with the light-emitting layer provided in between.

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