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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 12492336 B1

PDFFull Text
Date of Patent:
Dec. 09, 2025

Filed:

Apr. 19, 2023

Organic light-emitting diodes with fluorescent and phosphorescent emitters

Applicant:

Arizona Board of Regents on Behalf of Arizona State University, Scottsdale, AZ (US);

Inventors:

Jian Li, Tempe, AZ (US);

Tyler Fleetham, Gilbert, AZ (US);

Assignee:

ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY, Scottsdale, AZ (US);

Attorney:

Riverside Law LLP

Primary Examiner:

Sean M Deguire

Int. Cl.
CPC ...
C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/12 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); H10K 50/11 (2023.02); H10K 50/121 (2023.02); H10K 50/156 (2023.02); H10K 50/166 (2023.02); H10K 85/6572 (2023.02); C09K 2211/1011 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/185 (2013.01); H10K 85/631 (2023.02); H10K 2101/10 (2023.02);
Abstract

A light emitting device includes a first electrode, a hole transporting layer in contact with the first electrode, a second electrode, an electron transporting layer in contact with the second electrode; and an emissive layer between the hole transporting layer and the electron transporting layer. The emissive layer includes a phosphorescent emitter, a fluorescent emitter, and a host, and the phosphorescent emitter harvests electrogenerated excitons and transfers energy to the fluorescent emitter.

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Quick Actions:

Li, Jian. (2025). Organic light-emitting diodes with fluorescent and phosphorescent emitters (U.S. Patent No. 12492336). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12492336

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