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.:
Date of Patent:
Dec. 02, 2025
Filed:
Sep. 22, 2021
University of Southern California, Los Angeles, CA (US);
Mark E. Thompson, Anaheim, CA (US);
Peter I. Djurovich, Long Beach, CA (US);
Abstract
A compound is described as having a triplet excited state and a singlet excited state; wherein the triplet excited state comprises a lowest energy triplet sublevel, a middle energy triplet sublevel, and a highest energy triplet sublevel; and wherein an energy separation between the highest energy triplet sublevel and the lowest energy triplet sublevel (ZFS) is greater than an energy separation between the singlet excited state and a the lowest energy triplet sublevel. Also described is a compound represented by the following Formula I. These compounds should find application as luminescent materials in organic light emitting diodes (OLEDs).