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    Organic light-emitting device
    2.
    发明授权
    Organic light-emitting device 有权

    公开(公告)号：US11063220B2

    公开(公告)日：2021-07-13

    申请号：US16113999

    申请日：2018-08-27

    申请人： SAMSUNG DISPLAY CO., LTD.

    发明人： Seul-Ong Kim ,  Dong-Woo Shin

    IPC分类号： H01L51/00 ,  C09B57/00 ,  C09B1/00 ,  C09K11/06 ,  H01L51/50

    摘要： An organic light-emitting device includes an emission layer and an electron transport layer. The emission layer includes at least one compound represented one of Formula 1, Formula 2 and/or Formula 3. The electron transport layer includes at least one compound represented by Formula 4 and/or Formula 5. An organic light-emitting device including the emission layer and the electron transport layer has high emission efficiency and an improved lifetime.

    Organic light-emitting device
    3.
    发明授权
    Organic light-emitting device 有权

    公开(公告)号：US10340463B2

    公开(公告)日：2019-07-02

    申请号：US15684852

    申请日：2017-08-23

    申请人： Samsung Display Co., Ltd.

    发明人： Jung-Sub Lee ,  Seul-Ong Kim ,  Youn-Sun Kim ,  Dong-Woo Shin ,  Naoyuki Ito

    IPC分类号： H01L51/50 ,  H01L51/00

    摘要： An organic light-emitting device includes a first electrode; a second electrode; and an organic layer between the first electrode and the first electrode and including an emission layer (EML); a hole transport region between including an electron blocking layer (EBL) and at least one selected from a hole injection layer (HIL), a hole transport layer (HTL), and a buffer layer; and an electron transport region and including a hole blocking layer (HBL) and at least one selected from an electron transport layer and electron injection layer (EIL). A triplet energy of a material for the electron blocking layer (EBL T1), a triplet energy of a material for the hole blocking layer (HBL T1), and a triplet energy of a host in the emission layer (Host T1) satisfy Equation (1) and Equation (2): EBL T1≥HBL T1≥Host T1  (1) EBL T1−HBL T1≥0.2 eV  (2).