公开(公告)号：US20230049161A1

公开(公告)日：2023-02-16

申请号：US17807382

申请日：2022-06-17

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Rasha HAMZE ,  Matthew ASAY ,  Morgan C. MACINNIS ,  Alexey Borisovich DYATKIN ,  Hsiao-Fan CHEN ,  Wei-Chun SHIH ,  Jerald FELDMAN ,  Chun LIN ,  Tyler FLEETHAM ,  Elena SHEINA ,  George FITZGERALD

IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06

Abstract: Provided are compounds comprising a first ligand LA; wherein LA comprises a 5-membered heterocycle joined to a metal M by a M-C or M-N bond; wherein the 5-membered heterocycle comprises at least one boron atom; wherein M is selected from the group consisting of Os, Ir, Pd, Pt, Cu, Ag, and Au; and wherein LA does not comprise a structure of Formula I. wherein X is B or N; with the proviso that the 5-membered heterocycle does not comprise a B—B bond; and with the proviso that if M is Pd or Pt and the 5-membered heterocycle is fused to a benzene ring, the benzene ring is not part of a 6-membered chelate ring comprising M. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.