ORGANIC LIGHT EMITTING DEVICE
    2.
    发明公开

    公开(公告)号:US20240206332A1

    公开(公告)日:2024-06-20

    申请号:US18280630

    申请日:2022-04-21

    Applicant: LG CHEM, LTD.

    Abstract: Provided is an organic light-emitting device having improved driving voltage, efficiency, and lifespan, the device comprising a light emitting layer between an anode and a cathode, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2:






    wherein: Y is O or S, X1, X2 and X3 are each independently CH or N, provided that at least one of X1, X2 and X3 is N, A is a benzene ring fused with two adjacent rings, Ar1-Ar4 are each independently a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of N, O and S, provided that at least one of Ar3 and Ar4 is substituted with at least one deuterium, and the other substituents are as defined in the specification.

    ORGANIC LIGHT EMITTING DEVICE
    3.
    发明公开

    公开(公告)号:US20240122068A1

    公开(公告)日:2024-04-11

    申请号:US18269145

    申请日:2022-05-06

    Applicant: LG CHEM, LTD.

    Abstract: Provided is an organic light emitting device comprising a light emitting layer comprising an organic alloy of a compound of Chemical Formula 1 and a compound of Chemical Formula 2, the device having improved driving voltage, efficiency, and lifespan:




    where A is a benzene ring fused with the two adjacent rings, X1, X2 and X3 are each independently CH or N, provided that at least one of X1, X2 and X3 is N, Ar1-Ar5 are each independently a substituted or unsubstituted C6-60 aryl or a substituted or unsubstituted C2-60 heteroaryl containing at least one of N, O and S, and the other substituents are defined in the specification, provided that at least one of Ar4 and Ar5 is substituted with at least one deuterium, or at least one R2 is deuterium.

    POLYCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DIODE COMPRISING SAME

    公开(公告)号:US20220352473A1

    公开(公告)日:2022-11-03

    申请号:US15733956

    申请日:2019-07-03

    Applicant: LG CHEM, LTD.

    Abstract: Provided is a compound of Formula 1: Ar1 to Ar1 are each independently hydrogen, deuterium, a halogen group, a nitrile group, or a substituted or unsubstituted: silyl, boron, alkyl, alkenyl, alkynyl, alkoxy, aryloxy, cycloalkyl, aryl, or heterocyclic group, or adjacent groups are bonded together to form a substituted or unsubstituted aliphatic hydrocarbon ring; A1 and A2 are each independently hydrogen, deuterium, a halogen group, a nitrile group, or a substituted or unsubstituted: silyl, boron, alkyl, alkenyl, alkynyl, alkoxy, aryloxy, cycloalkyl, aryl, or heterocyclic group, or are bonded together to form a substituted or unsubstituted ring; R1 to R3 are each independently hydrogen, deuterium, a halogen group, a nitrile group, or a substituted or unsubstituted; silyl, boron, alkyl, alkenyl, alkynyl, alkoxy, aryloxy, cycloalkyl, aryl, amine, or heterocyclic group; and n1 to n3 are each 0 to 3, and 2 or more, the substituents are the same as or different from each other, and an organic light emitting device including the same.

    ORGANIC LIGHT EMITTING DEVICE
    10.
    发明申请

    公开(公告)号:US20210399223A1

    公开(公告)日:2021-12-23

    申请号:US17263514

    申请日:2019-09-20

    Applicant: LG CHEM, LTD.

    Abstract: An organic light emitting device including a first electrode, a second electrode provided opposite to the first electrode, and an organic material layer provided between the first electrode and the second electrode, wherein the organic material layer includes a hole transfer layer and an electron blocking layer, and the hole transfer layer and the electron blocking layer include a compound of Chemical Formula 1, the materials of the hole transfer layer and the electron blocking layer are different from each other, and one or more layers that are not the hole transfer layer and the electron blocking layer of the organic material layer include a compound of Chemical Formula 2.

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