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:
Aug. 29, 2023
Filed:
Jul. 25, 2018
Applicant:
Universal Display Corporation, Ewing, NJ (US);
Inventors:
Zhiqiang Ji, Ewing, NJ (US);
Alexey Borisovich Dyatkin, Ambler, PA (US);
Jui-Yi Tsai, Newtown, PA (US);
Walter Yeager, Yardley, PA (US);
Edward Barron, Hamilton, NJ (US);
Assignee:
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/30 (2023.01); C07F 15/00 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 101/10 (2023.01); H10K 102/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/342 (2023.02); C07F 15/0033 (2013.01); C09K 11/06 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 85/40 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6576 (2023.02); H10K 2101/10 (2023.02); H10K 2102/103 (2023.02);
Abstract
A compound having the formula [L]Ir[L]is disclosed, where Lis selected from one of the following: The compounds have at least one pyridyl dibenzo-substituted ligand that coordinates to metal center from the sterically hindered position as exemplified by L. Because of this unique configuration, the compounds display better photo-physical and thermal properties and can be used in OLED devices to improve their performance, particularly with respect to the device's lifetime.