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. 05, 2025
Filed:
Jun. 14, 2019
Universal Display Corporation, Ewing, NJ (US);
Hsiao-Fan Chen, Taipei, TW;
Peter Wolohan, Princeton Junction, NJ (US);
Nicholas J. Thompson, Hamilton, NJ (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
A compound having a structure of Formula I, is provided. In Formula I, Zto Zare each CR or N; three consecutive ones of Zto Zwithin the same ring cannot be N; each R is independently a hydrogen or a substituent selected from a variety of substituents; at least one R includes and electron donor substituent; at least one R includes an electron acceptor substituent; and any two Rs on the same ring can be joined or fused together to form a ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.