US 12,171,138 B2
Organic electroluminescent materials and devices
Chun Lin, Yardley, PA (US); Peter B. Mackenzie, Murrysville, PA (US); Robert W. Walters, Export, PA (US); Jui-Yi Tsai, Newtown, PA (US); Cory S. Brown, Pittsburgh, PA (US); and Jun Deng, Murrysville, PA (US)
Assigned to UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed by UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed on Jun. 23, 2022, as Appl. No. 17/848,157.
Application 14/713,615 is a division of application No. 11/241,981, filed on Oct. 4, 2005, granted, now 9,051,344.
Application 17/848,157 is a continuation of application No. 16/458,735, filed on Jul. 1, 2019, granted, now 11,404,650.
Application 16/458,735 is a continuation of application No. 14/713,615, filed on May 15, 2015, granted, now 10,381,579.
Claims priority of provisional application 60/718,336, filed on Sep. 20, 2005.
Claims priority of provisional application 60/701,929, filed on Jul. 25, 2005.
Claims priority of provisional application 60/678,170, filed on May 6, 2005.
Prior Publication US 2022/0328774 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 51/00 (2006.01); C07F 15/00 (2006.01); C09K 11/06 (2006.01); H10K 85/30 (2023.01); H10K 50/11 (2023.01); H10K 50/81 (2023.01); H10K 50/82 (2023.01); H10K 50/826 (2023.01); H10K 101/10 (2023.01); H10K 102/00 (2023.01); H10K 102/10 (2023.01)
CPC H10K 85/342 (2023.02) [C07F 15/0033 (2013.01); C07F 15/0046 (2013.01); C09K 11/06 (2013.01); H10K 85/361 (2023.02); C09K 2211/1029 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 50/81 (2023.02); H10K 50/82 (2023.02); H10K 50/826 (2023.02); H10K 2101/10 (2023.02); H10K 2102/00 (2023.02); H10K 2102/103 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A compound, wherein the compound is a phosphorescent compound that is a neutral metal complex of a tetradentate ligand;
wherein the ligand comprises a first heteroaryl ring directly bonded to the metal;
wherein the first heteroaryl ring is directly bonded to a second aryl or heteroaryl ring which is not directly bonded to the metal and which is substituted at both ortho positions by groups selected from the group consisting of alkyl, aryl, heteroaryl, and diarylamino;
wherein at least one of the ortho positions of the second aryl or heteroaryl ring is substituted by a group selected from the group consisting of aryl, heteroaryl, and diarylamino;
wherein the first heteroaryl ring is an imidazole, quinoline, isoquinoline, pyridine, pyrimidine, pyridazine, pyrrole, oxazole, thiazole, oxadiazole, thiadiazole, furan, or thiophene ring;
wherein the metal complex is an organometallic complex; and
wherein the metal is Pt.