Patent ID: 11864458
Assignee: UNIVERSAL DISPLAY CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 6:
7. The compound of claim 1, wherein the first ligand LA has Formula II, wherein:
Z1, Z2, and Z3 are each C;
Z1, Z2, and Z3 are joined to a linking group selected from the group consisting of:, wherein RE represents zero, mono, or up to a maximum allowed number of substitutions to its associated ring;
wherein RE for each occurrence 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;
wherein each Y can be the same or different and is independently selected from the group consisting of O, S, SO2, SO, Se, CR′R″, SiR′R″, GeR′R″, BR′, and NR′;, wherein Q is selected from the group consisting of CR′, SiR′, GeR′, B, and N;, wherein each R′ and R″ can be the same or different and is independently selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, aryl, heteroaryl, and combinations thereof; and, wherein any adjacent R′ or R″ groups can be linked to form a ring.