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. 23, 2022
Filed:
Apr. 21, 2020
Universal Display Corporation, Ewing, NJ (US);
Eric A. Margulies, Ewing, NJ (US);
Zhiqiang Ji, Hillsborough, NJ (US);
Jui-Yi Tsai, Newtown, PA (US);
Chun Lin, Yardley, PA (US);
Alexey Borisovich Dyatkin, Ambler, PA (US);
Mingjuan Su, Ewing, NJ (US);
Bin Ma, Plainsboro, NJ (US);
Michael S. Weaver, Princeton, NJ (US);
Julia J. Brown, Yardley, PA (US);
Lichang Zeng, Lawrenceville, NJ (US);
Walter Yeager, Yardley, PA (US);
Alan DeAngelis, Pennington, NJ (US);
Chuanjun Xia, Lawrenceville, NJ (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent Rat one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in Rwhere that atom is the farthest away from the metal among the atoms in R; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R, the first distance is longer than the radius r by at least 2.9 Δ.