ORGANIC LIGHT EMITTING DEVICE
    5.
    发明申请

    公开(公告)号:US20240397737A1

    公开(公告)日:2024-11-28

    申请号:US18693515

    申请日:2023-01-26

    Applicant: LG CHEM, LTD.

    Abstract: An organic light emitting device comprising: an anode; a cathode; and between the anode and the cathode a light emitting layer including a compound of Chemical Formula 1, and a compound of Chemical Formula 2: wherein: X1 is O or S, each X2 is independently N or CH, provided that at least one is N, each Ar1, Ar2 and Ar3 each independently is a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O, and S, B is benzene fused with two adjacent rings, and the other substituents are as defined in the specification. When compounds by Chemical Formulae 1 and 2 are used in the light emitting layer, the device has improved driving voltage, efficiency, and lifetime.

    ORGANIC LIGHT EMITTING DEVICE
    8.
    发明申请

    公开(公告)号:US20240389452A1

    公开(公告)日:2024-11-21

    申请号:US18693922

    申请日:2023-01-26

    Applicant: LG CHEM, LTD.

    Abstract: An organic light emitting device comprising: an anode; a cathode; and a light emitting layer between the anode and cathode, the light emitting layer comprising a compound of Chemical Formula 1, and a compound of Chemical Formula 2: wherein: X1 is O or S; at least one of X2 is N; each Ar1, and Ar2 and Ar3 are independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O, and S; at least one of the Ar2 and Ar3 is substituted with at least one deuterium, or at least one of the R3 and R4 is deuterium; and the other substituents are defined in the specification. When light emitting layer includes a compound of Chemical Formulae 1 and 2, the organic light emitting device exhibits improved driving voltage, efficiency and lifetime.

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