Publication number: 20220085302
Abstract: A compound having a ligand LA of Formula I, is disclosed. In Formula I, ring B is a 5-membered or 6-membered ring; K is a direct bond, O, or S; X is O, S, Se, NR, CRR?, SiRR?, or GeRR?; R1 and R2 are each independently selected from a variety of substituents; each R, R?, RA, and RB is independently hydrogen or a substituent; LA is coordinated to a metal M selected from Os, Ir, Pd, Pt, Cu, Ag, or Au by the dashed lines; any two adjacent of R1, R2, R, R?, RA, or RB can be joined or fused to form a ring, with the proviso that when ring B is a 6-membered ring, two RB substituents are not joined to form a fused 6-membered aromatic ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.
Type:
Application
Filed:
August 17, 2021
Publication date:
March 17, 2022
Applicant:
Universal Display Corporation
Inventors:
Zhiqiang JI, Pierre-Luc T. BOUDREAULT, Tongxiang LU, Wei-Chun SHIH, Bert ALLEYNE, Hsiao-Fan CHEN
Patent number: 11276829
Abstract: A compound having a first ligand LA having the Formula: Formula I is disclosed, wherein rings A is a 5- or 6-membered carbocyclic or heterocyclic ring; wherein RA and RB each independently represent mono to the possible maximum number of substitution, or no substitution; wherein Z1 is carbon or nitrogen; wherein each RA and RB is 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 two substituents are optionally joined or fused into a ring; wherein X1 to X4 each independently represent a carbon or nitrogen; wherein at least one of X1 to X4 is nitrogen; wherein the ligand LA is coordinated to a metal M; wherein the metal M can be coordinated to other ligands; and wherein the ligand LA is optionally l
Type:
Grant
Filed:
September 15, 2017
Date of Patent:
March 15, 2022
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Jui-Yi Tsai, Alexey Borisovich Dyatkin, Zhiqiang Ji, Walter Yeager, Edward Barron
Publication number: 20220009955
Abstract: A compound comprising a first bidentate ligand LA, wherein LA comprises a structure of Formula I; wherein Z is selected from the group consisting of O, S, NR, BR, CRKRL, C?CRKRL, SiRKRL, —CRKRLCRMRN—, —SiRKRLSiRMRN—, —CRKRLO—, —SiRKRLO—, and —CRK?CRL—; wherein ring A, ring B, and ring C are each independently a 5-membered carbocyclic ring, 5-membered heterocyclic ring, 6-membered carbocyclic ring or 6-membered heterocyclic ring; wherein LA is coordinated to a metal M forming a 5-membered chelate ring; wherein M is selected from the group consisting of Ir, Pt, Pd, Ru, Rh, Os, Re, Cu, Ag, and Au; wherein RA, RB, and RC each represent mono to the maximum allowable substitution, or no substitution; wherein each R, RK, RL, RM, RN, RA, RB, and RC is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, germyl, boryl, selenyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, a
Type:
Application
Filed:
September 14, 2021
Publication date:
January 13, 2022
Inventors:
Alexey Borisovich Dyatkin, Jui-Yi Tsai, Walter Yeager, Pierre-Luc T. Boudreault, Zhiqiang Ji, Alan DeAngelis