ORGANIC LIGHT EMITTING DEVICE
    93.
    发明申请

    公开(公告)号:US20220259208A1

    公开(公告)日:2022-08-18

    申请号:US17611991

    申请日:2020-12-04

    Applicant: LG CHEM, LTD.

    Abstract: Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device including a light emitting layer comprising a first compound of Chemical Formula 1 and a second compound of Chemical Formula 2: A is a benzene ring fused with the two pentagonal rings; Ar1 to Ar3 are each independently a substituted or unsubstituted C6-20 aryl or C5-60 heteroaryl containing one or more of N, O and S; provided that at least one of Ar1-Ar3, and R1 is substituted with at least one deuterium, or at least one of R1 is deuterium, and the first compound comprises at least 5 deuteriums; B is a benzene ring fused with the two pentagonal rings; Ar4 is a substituted or unsubstituted C6-60 aryl; and Ar5 is a substituted or unsubstituted C6-60 aryl or C5-50 heteroaryl containing one of N, O and S.

    COMPOUND AND ORGANIC LIGHT EMITTING DIODE COMPRISING SAME

    公开(公告)号:US20210376257A1

    公开(公告)日:2021-12-02

    申请号:US17262622

    申请日:2019-10-04

    Applicant: LG CHEM, LTD.

    Abstract: Provided is a compound of Chemical Formula 1: wherein: X is O or S; L is a direct bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group; Ar1 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; Ar2 is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; R1 to R8 are the same as or different from each other, and each independently is hydrogen, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; and m and n are each an integer of 0 to 7, and when m is 2 or greater, R7s are the same as or different from each other, and when n is 2 or greater, R8s are the same as or different from each other, and an organic light emitting device including the same.

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