ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

    公开(公告)号:US20190280219A1

    公开(公告)日:2019-09-12

    申请号:US16283219

    申请日:2019-02-22

    Abstract: A compound comprising a first ligand selected from Formula I, and Formula II, is disclosed. In these structures, Y1 to Y12 and Z3 and Z4 are independently CR or N; where each R, R′, R″, RF, and RG is hydrogen or a substituent, where at least one dashed arc represents Rs joined into a 5-membered or 6-membered carbocyclic or heterocyclic ring; where the first ligand is complexed to a metal M; where ring G is a fused ring structure comprising five or more fused heterocyclic or carbocyclic rings, of which at least one ring is of Formula III where the fused heterocyclic or carbocyclic rings of Ring G are 5- or 6-membered; where Y is selected from BR′, NR′, PR′, O, S, Se, C═O, S═O, SO2, CR′R″, SiR′R″, and GeR′R″. Organic light emitting devices and consumer products containing the compounds are also disclosed.

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

    公开(公告)号:US20250133951A1

    公开(公告)日:2025-04-24

    申请号:US18911927

    申请日:2024-10-10

    Abstract: Please replace the Abstract with the following replacement version which is marked up to show the changes.
    A compound comprising a first ligand LA of Formula I, is provided. In the compound, moiety B is a monocyclic ring or a polycyclic fused ring system; each of X1 to X6 is C or N; K is a direct bond or a linking group; at least one RA comprises silyl or germyl; any RA that is silyl or germyl does not form a 5-membered ring with another RA; each substituent is hydrogen or a General Substituents defined herein; the first ligand LA is coordinated to a metal M by the dashed lines. Formulations, OLEDs, and consumer products containing the compound are also provided.

Patent Agency Ranking