公开(公告)号：US20230303601A1

公开(公告)日：2023-09-28

申请号：US18060590

申请日：2022-12-01

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Jui-Yi TSAI ,  Tongxiang LU ,  Alexey Borisovich DYATKIN ,  Maria L. BUIL ,  Maria BENITEZ ,  Miguel A. ESTERUELAS ,  Susana IZQUIERDO ,  Enrique OÑATE

IPC: C07F15/00 ,  H10K85/30 ,  H10K85/60 ,  H10K85/40

CPC classification number: C07F15/0033 ,  C07F15/006 ,  C07F15/0086 ,  H10K85/40 ,  H10K85/341 ,  H10K85/342 ,  H10K85/346 ,  H10K85/615 ,  H10K85/622 ,  H10K85/633 ,  H10K85/652 ,  H10K85/654 ,  H10K85/657 ,  H10K85/658 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576

Abstract: Provided are compounds compound comprising a first ligand LA of Formula I:









wherein R1 and R2 are each 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, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; wherein LA is coordinated to a metal M through the indicated dashed lines;

wherein M may be coordinated to other ligands; wherein LA may be joined with other ligands to comprise a tridentate, tetradentate, pentadentate, or hexadentate ligand; and wherein any two substituents may be joined or fused to form a ring. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.