US 11,678,563 B2
Organic electroluminescent materials and devices
Jui-Yi Tsai, Newtown, PA (US); Lichang Zeng, Lawrenceville, NJ (US); Zhiqiang Ji, Chalfont, PA (US); Alexey Borisovich Dyatkin, Ambler, PA (US); Walter Yeager, Yardley, PA (US); and Edward Barron, Hamilton, NJ (US)
Assigned to UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US)
Filed by Universal Display Corporation, Ewing, NJ (US)
Filed on May 14, 2021, as Appl. No. 17/320,422.
Application 17/320,422 is a continuation of application No. 15/918,179, filed on Mar. 12, 2018, granted, now 11,056,658.
Claims priority of provisional application 62/479,730, filed on Mar. 31, 2017.
Claims priority of provisional application 62/478,072, filed on Mar. 29, 2017.
Prior Publication US 2022/0359835 A1, Nov. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 11/06 (2006.01); H01L 51/00 (2006.01); C07F 15/00 (2006.01); H01L 51/50 (2006.01)
CPC H01L 51/0085 (2013.01) [C07F 15/0033 (2013.01); C09K 11/06 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/185 (2013.01); H01L 51/0054 (2013.01); H01L 51/0059 (2013.01); H01L 51/0067 (2013.01); H01L 51/0074 (2013.01); H01L 51/5016 (2013.01); H01L 2251/5384 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A compound having the formula [LA]3-nIr[LB]n, having the structure:

OG Complex Work Unit Chemistry
wherein R1, R2, R3, R4, and R5 each independently represents mono, to a maximum possible number of substitutions, or no substitution;
wherein X is selected from the group consisting of BR′, NR′, PR′, O, S, Se, C═O, S═O, SO2, CR′R″, SiR′R″, and GeR′R″;
wherein R′, R″, R1, R2, R3, R4, and R5 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 any substitutions are optionally joined or fused into a ring;
wherein n is 1 or 2;
wherein R is selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, partially or fully fluorinated variants thereof, partially or fully deuterated variants thereof, and combination thereof; and
wherein R has at least five carbon atoms.