HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME

    公开(公告)号:US20210340159A1

    公开(公告)日:2021-11-04

    申请号:US16973516

    申请日:2019-07-12

    Applicant: LG CHEM, LTD.

    Abstract: Provided is a heterocyclic compound of Chemical Formula 1: wherein: L is a substituted or unsubstituted tricyclic or higher divalent heterocyclic group including two or more heteroatoms selected from among N, O and S; Ar is a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; and R1 to R14 are the same as or different from each other, and each independently is hydrogen, a nitrile group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, or bond to adjacent groups to form at least one substituted or unsubstituted aromatic ring; and an organic light emitting device including the same.

    CARBAZOLE-BASED COMPOUND AND ORGANIC LIGHT EMITTING DIODE COMPRISING SAME

    公开(公告)号:US20210013425A1

    公开(公告)日:2021-01-14

    申请号:US16981429

    申请日:2019-04-04

    Applicant: LG CHEM, LTD.

    Abstract: Provided is a compound of Chemical Formula 1: wherein: X1 is N or CR, X2 is N or CR′, and X3 is N or CR″; two or more of X1 to X3 are N; R, R′, R″ and R1 each independently is hydrogen or deuterium, a is an integer of 0 to 9, and when a is 2 or greater, the R1s are the same as or different from each other Ar1 and Ar2 each independently is a substituted or unsubstituted aryl group; L is a direct bond or a substituted or unsubstituted arylene group, n is an integer of 1 to 3, and when n is 2 or 3, the Ls are the same as or different from each other; and R11 to R18 each independently is hydrogen, deuterium, a nitrile group, or a substituted or unsubstituted: alkyl group, cycloalkyl group, alkoxy group, aryloxy group, aryl group, or heteroaryl group, or bond to adjacent groups to form a substituted or unsubstituted ring, and an organic light emitting device comprising same.

    ORGANIC LIGHT EMITTING DEVICE
    17.
    发明申请

    公开(公告)号:US20240381766A1

    公开(公告)日:2024-11-14

    申请号:US18683462

    申请日:2022-11-14

    Applicant: LG CHEM, LTD.

    Abstract: An organic light emitting device having improved driving voltage, efficiency and lifetime. The device includes a light emitting layer containing a compound of Chemical Formulae 1 and 2: wherein: X1-X7 are each independently CR1 or N, at least one of X1-X7 is N, and each R1 is independently hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; A and B are each independently hydrogen, deuterium,  or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S, provided that at least one of A and B is  and the other substituents are described in the specification.

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