US 12,453,280 B2
Organic electroluminescent materials and devices
Scott Beers, Flemington, NJ (US); Chuanjun Xia, Lawrenceville, NJ (US); Harvey Wendt, Medford Lakes, NJ (US); and Suman Layek, Lawrenceville, NJ (US)
Assigned to UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed by UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed on May 11, 2022, as Appl. No. 17/741,954.
Application 17/741,954 is a continuation of application No. 16/658,316, filed on Oct. 21, 2019, granted, now 11,380,855.
Application 16/658,316 is a continuation of application No. 15/455,838, filed on Mar. 10, 2017, granted, now 10,510,968, issued on Dec. 17, 2019.
Application 15/455,838 is a continuation of application No. 13/673,338, filed on Nov. 9, 2012, granted, now 9,634,264, issued on Apr. 25, 2017.
Prior Publication US 2022/0278287 A1, Sep. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 85/30 (2023.01); C07F 15/00 (2006.01); C09K 11/02 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01)
CPC H10K 85/342 (2023.02) [C07F 15/0033 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1033 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A compound having the formula Ir(LA)n(LB)3-n, having the structure:

OG Complex Work Unit Chemistry
wherein A1, A2, A3, A6, A7, and A8 comprise carbon or nitrogen;
wherein at least one of A6, A7, or A8 is nitrogen;
wherein ring B is bonded to ring A through a C—C bond;
wherein the iridium is bonded to ring A through a Ir—C bond;
wherein X is O, S, or Se;
wherein R2, R3, and R4 independently represent mono-, di-, tri-, tetra-substitution, or no substitution;
wherein R1 independently represent mono-, di-, tri-, or tetra substitutions;
wherein any adjacent substitutions in R1, R2, R3, and R4 are optionally linked together to form a ring;
wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
wherein at least one R1 is not hydrogen, deuterium, or halide; and
wherein n is an integer from 1 to 3.