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    LIGHT EMITTING ELEMENT AND DISPLAY DEVICE INCLUDING THE SAME
    5.
    发明申请
    LIGHT EMITTING ELEMENT AND DISPLAY DEVICE INCLUDING THE SAME 有权

    公开(公告)号：US20210226086A1

    公开(公告)日：2021-07-22

    申请号：US17004786

    申请日：2020-08-27

    Applicant: Samsung Display Co., LTD.

    Inventor： Bora LEE ,  Hyomin KO ,  Ilhun CHO

    IPC: H01L33/14 ,  G02F1/13357 ,  H01L33/60

    Abstract: Provided is a light emitting element including a first electrode, a hole transport region disposed over the first electrode, an emission layer disposed over the hole transport region, an electron transport region disposed over the emission layer, and a second electrode disposed over the electron transport region, wherein the hole transport region includes a first hole transport layer disposed adjacent to the first electrode and having a first refractive index, a second hole transport layer disposed adjacent to the emission layer and having a second refractive index, and a third hole transport layer disposed between the first hole transport layer and the second hole transport layer and having a third refractive index greater than each of the first refractive index and the second refractive index, thereby achieving high light extraction efficiency and high luminous efficiency.

    LIGHT-EMITTING DEVICE
    7.
    发明申请
    LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20200295095A1

    公开(公告)日：2020-09-17

    申请号：US16813497

    申请日：2020-03-09

    Applicant: Samsung Display Co., Ltd.

    Inventor： Pyungeun JEON ,  Ilsoo OH ,  Bora LEE ,  Yujin KANG ,  Juwon LEE

    IPC: H01L27/32 ,  H01L51/50 ,  C07F5/02 ,  C09K11/06 ,  H01L51/00

    Abstract: A light-emitting device includes: a plurality of first electrodes respectively in a first sub-pixel, a second sub-pixel, and a third sub-pixel; a second electrode facing the plurality of first electrodes; a first emission layer in the first sub-pixel and configured to emit a first color light; a second emission layer in the second sub-pixel and configured to emit a second color light; a first layer that is integrated with the first sub-pixel, the second sub-pixel, and the third sub-pixel; a first auxiliary layer between the first layer and the first emission layer; and a first intermediate layer between the first auxiliary layer and the first emission layer. The first emission layer includes a first host and a first dopant. The first dopant is configured to emit light having a full width at half maximum (FWHM) of about 35 nm or more.

    LIGHT EMITTING DIODE AND DISPLAY DEVICE INCLUDING THE SAME
    9.
    发明申请
    LIGHT EMITTING DIODE AND DISPLAY DEVICE INCLUDING THE SAME 有权

    公开(公告)号：US20210280831A1

    公开(公告)日：2021-09-09

    申请号：US17093284

    申请日：2020-11-09

    Applicant: Samsung Display Co., Ltd.

    Inventor： Bora LEE ,  Hyomin KO

    IPC: H01L51/52 ,  H01L51/50

    Abstract: A light emitting diode of an embodiment of the present disclosure includes a first electrode, a hole transport region on an upper portion of the first electrode and having a first refractive index, an emission layer on an upper portion of the hole transport region and having a second refractive index less than the first refractive index, an electron transport region on an upper portion of the emission layer, and a second electrode on an upper portion of the electron transport region.

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