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:
Mar. 14, 2023
Filed:
Jun. 12, 2019
Universal Display Corporation, Ewing, NJ (US);
Chuanjun Xia, Lawrenceville, NJ (US);
Chun Lin, Yardley, PA (US);
Pierre-Luc T. Boudreault, Pennington, NJ (US);
Jui-Yi Tsai, Newtown, PA (US);
Mingjuan Su, Ewing, NJ (US);
Lichang Zeng, Lawrenceville, NJ (US);
Zhiqiang Ji, Chalfont, PA (US);
Edward Barron, Hamilton, NJ (US);
Walter Yeager, Yardley, PA (US);
Alexey Borisovich Dyatkin, Ambler, PA (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A composition including a first compound capable of functioning as a phosphorescent emitter in an OLED is provided. The first compound has at least one aromatic ring and at least one substituent R directly bonded to one of the at least one aromatic rings. Each substituent R has the formula of where (a) Gis selected from NR, SiRR, GeRR, alkyl, cycloalkyl, and combinations thereof; and Gis a non-aromatic polycyclic group; (b) Gis a direct bond; and Gis a non-aromatic spiro polycyclic group; or (c) Gis selected from direct bond, NR, SiRR, GeRR, alkyl, cycloalkyl, and combinations thereof; Gis a non-aromatic polycyclic group; and R is directly bonded to a phenyl, pyridine, or triazine. R, R, and Rare a variety of substituents. Formulations and devices, such as an OLEDs, that include the first compound are also described.