Patent ID: 11871653
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 5:
6. The compound of claim 1, wherein the first ligand LA is selected from the group consisting of:, wherein ring C is a 5-membered or 6-membered carbocyclic or heterocyclic ring;
wherein ring J is a 5-membered or 6-membered heterocyclic ring;
wherein Z1 is C or N;
wherein X1 to X8, X10, X12 are each independently C or N;
wherein R1 to R4, R11 to R14 represent mono to the maximum possible number of substitutions or no substitution;
wherein each R2 to R4, R11 to R14 is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, boryl, and combinations thereof;
wherein any two adjacent R1 to R4, R11 to R14 can be joined to form a ring, which can be further substituted;
wherein LA forms a 5-membered chelate ring upon complexation to M;
wherein LA can be linked with other ligands to comprise a tridentate, tetradentate, pentadentate, or hexadentate ligand; and
wherein the dashed lines represent the bonds to metal M.