Back to results
US 12,250,875 B2Granted
Organic electroluminescent materials and devices
AssigneeUniversal Display Corporation
InventorsHsiao-Fan Chen, George Fitzgerald, Tyler Fleetham, Peter Wolohan, Joseph A. Macor, Morgan C. Macinnis, Wystan Neil Palmer, Geza Szigethy, Noah Horwitz
Life of this patent
Estimating the term…
Abstract
Provided are compounds comprising a ligand LA of Formula I where the ligand LA is coordinated to Ir.
Claims20
A compound comprising a ligand LA of Formula I
- wherein:
- A is a 5-membered or 6-membered carbocyclic or heterocyclic ring;
- Z3 and Z2 are each independently C or N;
- K3 and Ware each independently a direct bond, O, or S;
- X1, X2, and X3 are each independently C or N, at least one of X′, X2, and X3 is C;
- X is O or NR′;
- RA and RB each represents zero, mono, or up to the maximum number of allowed substitutions to its associated ring;
- each of R, R′, RA, and RB is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- and
- two adjacent groups can be joined or fused to form a ring wherever chemically feasible,
- wherein the ligand LA is complexed to a metal M to form a chelate ring as indicated by the two dotted lines;
- the metal M can be coordinated to other ligands;
- the metal M is Ir;
- and
- the ligand LA can be linked with other ligands to form a tridentate, tetradentate, pentadentate, or hexadentate ligand.
12 more elements
An organic light emitting device comprising:
- an anode;
- a cathode;
- and
- an organic layer disposed between the anode and the cathode, wherein the organic layer comprises a compound comprising a ligand LA of Formula I
- wherein:
- A is a 5-membered or 6-membered carbocyclic or heterocyclic ring;
- Z1 and Z2 are each independently C or N;
- K3 and K4 are each independently a direct bond, O, or S;
- X1, X2, and X3 are each independently C or N, at least one of X1, X2, and X3 is C;
- X is O or NR′;
- RA and RB each represents zero, mono, or up to the maximum number of allowed substitutions to its associated ring;
- each of R, R′, RA, and RB is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- and
- two adjacent groups can be joined or fused to form a ring wherever chemically feasible,
- wherein the ligand LA is complexed to a metal M to form a chelate ring as indicated by the two dotted lines;
- the metal M can be coordinated to other ligands;
- the metal M is Ir;
- and
- the ligand LA can be linked with other ligands to form a tridentate, tetradentate, pentadentate, or hexadentate ligand.
16 more elements
A consumer product comprising an organic light-emitting device (OLED) comprising:
- an anode;
- a cathode;
- and
- an organic layer disposed between the anode and the cathode, wherein the organic layer comprises a compound comprising a ligand LA of Formula I
- wherein:
- A is a 5-membered or 6-membered carbocyclic or heterocyclic ring;
- Z1 and Z2 are each independently C or N;
- K3 and K4 are each independently a direct bond, O, or S;
- X1, X2, and X3 are each independently C or N, at least one of X1, X2, and X3 is C;
- X is O or NR′;
- RA and RB each represents zero, mono, or up to the maximum number of allowed substitutions to its associated ring;
- each of R, R′, RA, and RB is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- and
- two adjacent groups can be joined or fused to form a ring wherever chemically feasible,
- wherein the ligand LA is complexed to a metal M to form a chelate ring as indicated by the two dotted lines;
- the metal M can be coordinated to other ligands;
- the metal M is Ir;
- and
- the ligand LA can be linked with other ligands to form a tridentate, tetradentate, pentadentate, or hexadentate ligand.
16 more elements
Dependencies are inferred from the claim text.