	US 12,464,945 B2
	Organic electroluminescent materials and devices
Chuanjun Xia, Lawrenceville, NJ (US); Raymond Kwong, Plainsboro, NJ (US); Ken-Tsung Wong, Tapei County (TW); and Ming-Cheng Kuo, Taichung County (TW)
Assigned to UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed by UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed on Mar. 11, 2022, as Appl. No. 17/692,444.
Application 17/692,444 is a continuation of application No. 15/915,199, filed on Mar. 8, 2018, granted, now 11,316,113.
Application 15/915,199 is a continuation of application No. 13/816,407, granted, now 9,954,180, issued on Apr. 4, 2018, previously published as PCT/US2010/046218, filed on Aug. 20, 2010.
Prior Publication US 2022/0216421 A1, Jul. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 85/60 (2023.01); C07D 401/14 (2006.01); C07D 403/14 (2006.01); C07D 405/14 (2006.01); C07D 409/14 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 85/30 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01)

CPC H10K 85/654 (2023.02) [C07D 401/14 (2013.01); C07D 403/14 (2013.01); C07D 405/14 (2013.01); C07D 409/14 (2013.01); C09K 11/06 (2013.01); H10K 85/615 (2023.02); H10K 85/622 (2023.02); H10K 85/626 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1092 (2013.01); H10K 50/11 (2023.02); H10K 85/342 (2023.02); H10K 85/655 (2023.02); H10K 2101/10 (2023.02); H10K 2101/27 (2023.02)]

20 Claims

1. A compound having the formula:

wherein R₁, R₂, R₃, and R₄may represent mono- up to the maximum substitutions, or no substitutions;

wherein each R₁, R₂, R₃, and R₄is independently selected from the group consisting of hydrogen, alkyl, alkoxy, amino, alkenyl, alkynyl, aryl and heteroaryl;

wherein Ar₁and Ar₂are independently selected from aryl or heteroaryl; and

wherein X is C or N; and

wherein Ar₃is a polycyclic fused aryl system.