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    ORGANIC LIGHT-EMITTING DEVICE
    1.
    发明公开
    ORGANIC LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20240147753A1

    公开(公告)日：2024-05-02

    申请号：US18534530

    申请日：2023-12-08

    Applicant: Samsung Display Co., Ltd.

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

    IPC: H10K50/18 ,  H10K50/16 ,  H10K50/165

    CPC classification number: H10K50/18 ,  H10K50/165 ,  H10K50/166 ,  H10K50/11

    Abstract: An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole transport region including at least one of a hole injection layer, a hole transport layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer, and a buffer layer between the emission layer and the electron transport region, wherein the buffer layer includes a biscarbazole-based derivative and triphenylene-based derivative, and a triplet energy (ET1) of the biscarbazole-based derivative or the triphenylene-based derivative and a triplet energy (ET2) of a dopant of the emission layer satisfy the following relationship:


    ET1>ET2.

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

    公开(公告)号：US10431766B2

    公开(公告)日：2019-10-01

    申请号：US14458368

    申请日：2014-08-13

    Applicant: SAMSUNG DISPLAY CO., LTD.

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

    IPC: H01L51/54 ,  H01L51/50 ,  H01L51/00

    Abstract: An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole transport region including at least one of a hole injection layer, a hole transport layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layers and an electron injection layer, and a buffer layer between the emission layer and the electron transport region, wherein the buffer layer includes a biscarbazole-based derivative and triphenylene-based derivative, and a triplet energy (ET1) of the biscarbazole-based derivative or the triphenylene-based derivative and a triplet energy (ET2) of a dopant of the emission layer satisfy the following relationship: ET1>ET2.

    ORGANIC LIGHT-EMITTING DEVICE
    4.
    发明申请
    ORGANIC LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20180366651A1

    公开(公告)日：2018-12-20

    申请号：US16113999

    申请日：2018-08-27

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Seul-Ong Kim ,  Dong-Woo Shin

    IPC: H01L51/00

    Abstract: 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
    7.
    发明申请
    ORGANIC LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20170373254A1

    公开(公告)日：2017-12-28

    申请号：US15684852

    申请日：2017-08-23

    Applicant: Samsung Display Co., Ltd.

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

    IPC: H01L51/00 ,  H01L51/50

    CPC classification number: H01L51/0061 ,  H01L51/0052 ,  H01L51/006 ,  H01L51/0072 ,  H01L51/5096

    Abstract: 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).

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