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 12772654 B1

Date of Patent:

Oct. 20, 2026

Filed:

Oct. 25, 2021

Lighting emitting layer with a quantum dot having core and shell containing halogen elements

Applicant:

Sharp Display Technology Corporation, Kameyama City, JP;

Inventor:

Yoshihiro Ueta, Kameyama City, JP;

Assignee:

Sharp Display Technology Corporation, Kameyama City, JP;

Attorney:

ScienBiziP, P.C.

Primary Examiner:

Alonzo Chambliss

Int. Cl.

CPC ...

H10K 50/115 (2023.01); C09K 11/02 (2006.01); C09K 11/08 (2006.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/18 (2023.01); H10K 59/35 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01); H10K 102/00 (2023.01);

U.S. Cl.

CPC ...

H10K 50/115 (2023.02); C09K 11/02 (2013.01); C09K 11/0827 (2013.01); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/181 (2023.02); C09K 2211/10 (2013.01); H10K 59/35 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02); H10K 2102/351 (2023.02);

Abstract

A light-emitting element includes the following: a first electrode and a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; and a functional layer disposed between the light-emitting layer and the second electrode, wherein the light-emitting layer has a first quantum dot portion including a first quantum dot, and a second quantum dot portion including a second quantum dot, and disposed between the first quantum dot portion and the functional layer, and one of the first quantum dot portion and the second quantum dot portion contains halogen elements at a predetermined concentration, and the other of the first quantum dot portion and the second quantum dot portion contains no halogen elements or contains halogen elements at a lower concentration than the predetermined concentration.

Find Patent Forward Citations

Ueta, Yoshihiro. (2026). Lighting emitting layer with a quantum dot having core and shell containing halogen elements (U.S. Patent No. 12772654). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12772654

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