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    LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
    32.
    发明申请
    LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME 审中-公开

    公开(公告)号：US20200313106A1

    公开(公告)日：2020-10-01

    申请号：US16832004

    申请日：2020-03-27

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Kwanghee KIM ,  Dae Young CHUNG ,  Tae Hyung KIM ,  Eun Joo JANG ,  Moon Gyu HAN

    IPC: H01L51/50 ,  H01L51/00 ,  H01L51/56

    Abstract: An electroluminescent device including a first electrode and a second electrode facing each other, and a quantum dot emission layer disposed between the first electrode and the second electrode and a method of manufacturing the same. The quantum dot emission layer does not include cadmium and lead, the quantum dot emission layer includes a first layer including first quantum dots, facing the first electrode, a second layer including second quantum dots, facing the second electrode, and a third layer including third quantum dots, disposed between the first layer and the second layer, wherein a highest occupied molecular orbital energy level of the third layer is less than a highest occupied molecular orbital energy level of the layer and the highest occupied molecular orbital energy level of the third layer is less than a highest occupied molecular orbital energy level of the second layer.

    ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF
    34.
    发明申请
    ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF 审中-公开

    公开(公告)号：US20190326539A1

    公开(公告)日：2019-10-24

    申请号：US16356148

    申请日：2019-03-18

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Dae Young CHUNG ,  Moon Gyu HAN ,  Oul CHO ,  Tae Hyung KIM ,  Sujin PARK ,  Hongkyu SEO ,  Eun Joo JANG

    IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56

    Abstract: An electroluminescent device including a first electrode, a hole transport layer disposed on the first electrode, a first emission layer disposed on the hole transport layer, the first emission layer including a first light emitting particle on which a first ligand having a hole transporting property is attached, a second emission layer disposed on the first emission layer, the second emission layer including a second light emitting particle on which a second ligand having an electron transporting property is attached, an electron transport layer disposed on the second emission layer, and a second electrode disposed on the electron transport layer, wherein a solubility of the first ligand in a solvent is different than a solubility of the second ligand in the solvent and a display device including the same.

    QUANTUM DOT DEVICE AND ELECTRONIC DEVICE
    35.
    发明申请
    QUANTUM DOT DEVICE AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20190319208A1

    公开(公告)日：2019-10-17

    申请号：US16104967

    申请日：2018-08-20

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Moon Gyu HAN ,  Dae Young CHUNG ,  Hongkyu SEO ,  Kwanghee KIM ,  Kun Su PARK ,  Sujin PARK ,  Eun Joo JANG

    IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00

    Abstract: A quantum dot device includes a first electrode and a second electrode facing each other, a quantum dot layer disposed between the first electrode and the second electrode and comprising a plurality of quantum dots, a first charge auxiliary layer disposed between the first electrode and the quantum dot layer and contacting the quantum dot layer, and a second charge auxiliary layer disposed between the second electrode and the quantum dot layer and contacting the quantum dot layer, wherein the plurality of quantum dots includes a quantum dot including an organic ligand on a surface thereof, the organic ligand including a hydrophilic functional group at a terminal end.

    QUANTUM DOT DEVICE AND ELECTRONIC DEVICE
    36.
    发明申请
    QUANTUM DOT DEVICE AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20190280230A1

    公开(公告)日：2019-09-12

    申请号：US16296505

    申请日：2019-03-08

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Hongkyu SEO ,  Eun Joo JANG ,  Moon Gyu HAN ,  Tae Ho KIM ,  Dae Young CHUNG

    IPC: H01L51/50 ,  H01L51/56 ,  C09K11/88

    Abstract: A quantum dot device including an anode; a cathode disposed substantially opposite to the anode; a hole injection layer disposed on the anode between the anode and the cathode; a hole transport layer disposed on the hole injection layer between the hole injection layer and the cathode; and a quantum dot layer disposed on the hole transport layer between the hole transport layer and the cathode, wherein the quantum dot layer includes a plurality of quantum dots, wherein the hole transport layer includes a hole transport material and an electron transport material, and wherein a lowest unoccupied molecular orbital (LUMO) energy level of the electron transport material and a lowest unoccupied molecular orbital (LUMO) energy level of the quantum dot layer is about 0.5 electron volts or less.

    ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF
    39.
    发明申请
    ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF 有权

    公开(公告)号：US20230061360A1

    公开(公告)日：2023-03-02

    申请号：US18047675

    申请日：2022-10-19

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sung woo KIM ,  Moon Gyu HAN ,  Eun joo JANG ,  Kun su PARK

    IPC: H01L51/50 ,  C09K11/88 ,  H01L51/00

    Abstract: An electroluminescent device and a display device including the electroluminescent device. The electroluminescent device includes a first electrode and a second electrode each having a surface opposite the other; a light emitting layer disposed between the first electrode and the second electrode, the light emitting layer including quantum dots; and an electron transport layer disposed between the light emitting layer and the second electrode, the electron transport layer including inorganic material nanoparticles including an anion dopant including P, N, C, Cl, F, Br, S, or a combination thereof.

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