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    ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING SAME
    1.
    发明申请
    ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING SAME 有权

    公开(公告)号：US20210091327A1

    公开(公告)日：2021-03-25

    申请号：US17026622

    申请日：2020-09-21

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Tae Ho KIM ,  Moon Gyu HAN ,  Hongkyu SEO ,  Heejae LEE ,  Eun Joo JANG

    IPC: H01L51/50 ,  C09K11/06

    Abstract: An electroluminescent device and a display device including the same are disclosed, wherein the electroluminescent device includes a first electrode; a hole transport layer disposed on the first electrode; a light emitting layer including a first light emitting layer disposed on the hole transport layer, the first emitting layer including a first quantum dot, and a second light emitting layer including a second quantum dot and an n-type organic semiconductor, the second light emitting layer disposed on the first light emitting layer; an electron transport layer disposed on the second light emitting layer; and a second electrode disposed on the electron transport layer.

    ELECTRIC DEVICE AND DISPLAY DEVICE COMPRISING THE SAME
    3.
    发明申请
    ELECTRIC DEVICE AND DISPLAY DEVICE COMPRISING THE SAME 审中-公开

    公开(公告)号：US20200328368A1

    公开(公告)日：2020-10-15

    申请号：US16913575

    申请日：2020-06-26

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Dae Young CHUNG ,  Hongkyu SEO ,  Yeonkyung LEE ,  Eun Joo JANG

    IPC: H01L51/50 ,  H01L51/52

    Abstract: An electronic device includes a first electrode and a second electrode facing each other, an emission layer comprising a plurality of quantum dots, wherein the emission layer is disposed between the first electrode and the second electrode; a first charge auxiliary layer disposed between the first electrode and the emission layer; and an optical functional layer disposed on the second electrode on a side opposite the emission layer, wherein the first electrode includes a reflecting electrode, wherein the second electrode is a light-transmitting electrode, wherein a region between the optical functional layer and the first electrode comprises a microcavity structure, and a refractive index of the optical functional layer is greater than or equal to a refractive index of the second electrode.

    LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
    4.
    发明申请
    LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME 有权

    公开(公告)号：US20220173342A1

    公开(公告)日：2022-06-02

    申请号：US17671970

    申请日：2022-02-15

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Dae Young CHUNG ,  Kwanghee KIM ,  Eun Joo JANG ,  Tae Hyung KIM ,  Hongkyu SEO ,  Heejae LEE ,  Jaejun CHANG

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

    Abstract: A light emitting device including a first electrode and a second electrode, and an emission layer disposed between the first electrode and the second electrode and including quantum dots, a first charge auxiliary layer disposed between the emission layer and the first electrode, and a second charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer comprises a first emission layer contacting the first charge auxiliary layer, a second emission layer disposed on the first emission layer, and a third emission layer disposed on the second emission layer. The hole mobility of the first emission layer decreases sequentially from the first emission layer to the third emission layer.

    ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF
    6.
    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
    7.
    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
    8.
    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.

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