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:
Jun. 27, 2023
Filed:
Jun. 16, 2020
Universal Display Corporation, Ewing, NJ (US);
Jui-Yi Tsai, Newton, PA (US);
Eric A. Margulies, Philadelphia, PA (US);
Zhiqiang Ji, Chalfont, PA (US);
Alexey Borisovich Dyatkin, Ambler, PA (US);
Walter Yeager, Yardley, PA (US);
Mingjuan Su, Ewing, NJ (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound having a metal coordination complex structure, where the compound is capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature is disclosed. The compound has a first ligand coordinated to a metal. The free-state of the first ligand has a first triplet energy T1 of Eat 77K, while the compound has a first triplet energy T1 of E at 77K, and the difference in energy (ΔE) between E and Eis ≤250 meV. The compound has a triplet emission spectrum with a FWHM value of no more than 45 nm. Organic light emitting devices, consumer products, and formulations containing the compounds are also disclosed.