Organic light emitting device
    7.
    发明授权

    公开(公告)号:US11239425B2

    公开(公告)日:2022-02-01

    申请号:US16316608

    申请日:2018-03-08

    申请人: LG CHEM, LTD.

    IPC分类号: H01L51/00 H01L51/50 C09K11/06

    摘要: The present invention relates to an organic light emitting device including a light emitting layer comprising a compound represented by Chemical Formula 1 and an electron transport region comprising a compound represented by Chemical Formula 2, and having improved driving voltage, efficiency and lifetime.