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    Light emitting diode for display and display apparatus having the same
    34.
    发明授权
    Light emitting diode for display and display apparatus having the same 有权

    公开(公告)号：US12142602B2

    公开(公告)日：2024-11-12

    申请号：US17844653

    申请日：2022-06-20

    Applicant: Seoul Viosys Co., Ltd.

    Inventor： Jong Hyeon Chae ,  Chang Yeon Kim ,  Ho Joon Lee ,  Seong Gyu Jang ,  Chung Hoon Lee ,  Dae Sung Cho

    IPC: H01L25/13 ,  H01L25/075 ,  H01L27/15 ,  H01L33/00 ,  H01L33/38 ,  H01L33/40 ,  H01L33/50 ,  H01L33/62

    Abstract: A light emitting device including a first LED sub-unit having a thickness in a first direction, a second LED sub-unit disposed on a portion of the first LED sub-unit in the first direction, each of the first and second LED sub-units comprising a first-type semiconductor layer, a second-type semiconductor layer, and an active layer, a reflective electrode disposed adjacent to the first LED sub-unit and electrically connected to the first-type semiconductor layer of the first LED sub-unit, and a first ohmic electrode forming ohmic contact with the second-type semiconductor layer of the first LED sub-unit, in which the active layer of the first LED sub-unit is configured to generate light, includes AlxGa(1-x-y)InyP (0≤x≤1, 0≤y≤1), and overlaps the active layer of the second LED sub-unit in the first direction, and the active layer of the second LED sub-unit includes the same material as the active layer of the first LED sub-unit.

    Light emitting device
    37.
    发明授权
    Light emitting device 有权

    公开(公告)号：US11876156B2

    公开(公告)日：2024-01-16

    申请号：US17115783

    申请日：2020-12-08

    Applicant: Seoul Viosys Co., Ltd.

    Inventor： Seong Gyu Jang ,  Ho Joon Lee ,  Jong Hyeon Chae

    IPC: H01L33/62 ,  H01L33/44 ,  H01L33/08 ,  H01L33/38

    CPC classification number: H01L33/62 ,  H01L33/08 ,  H01L33/382 ,  H01L33/44

    Abstract: A light emitting device including first, second, and third light emitting parts disposed near each other and each including a first-type semiconductor layer, a first active layer, and a second-type semiconductor layer, a first pad electrically coupled with the second-type semiconductor layer of the first light emitting part, a second pad electrically coupled with the second-type semiconductor layer of the second light emitting part, a third pad electrically coupled with the second-type semiconductor layer of the third light emitting part, and a common pad electrically coupled with the first-type semiconductor layer of the first, second, and third light emitting parts, in which, in a current density per light emitting part of about 20 A/cm2, one of the first, second, and third light emitting parts that is configured to emit light having the longest peak wavelength has a largest normalized external quantum efficiency.

    LIGHT EMITTING DEVICE WITH LED STACK FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME
    39.
    发明申请
    LIGHT EMITTING DEVICE WITH LED STACK FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME 有权

    公开(公告)号：US20230033645A1

    公开(公告)日：2023-02-02

    申请号：US17963147

    申请日：2022-10-10

    Applicant: SEOUL VIOSYS CO., LTD.

    Inventor： Seong Gyu JANG ,  Ho Joon Lee ,  Jong Hyeon Chae ,  Chung Hoon Lee

    IPC: H01L25/13 ,  H01L25/075 ,  H01L33/38 ,  H01L33/40 ,  H01L33/50

    Abstract: A light emitting diode pixel for a display includes a first subpixel including a first LED sub-unit, a second subpixel including a second LED sub-unit, a third subpixel including a third LED sub-unit, and a bonding layer overlapping the first, second, and third subpixels, in which each of the first, second, and third LED sub-units includes a first type of semiconductor layer and a second type of semiconductor layer, each of the first, second, and third LED sub-units is disposed on a different plane, and light generated from the second subpixel is configured to be emitted to an outside of the light emitting diode pixel by passing through a lesser number of LED sub-units than light generated from the first subpixel and emitted to the outside.

    LIGHT EMITTING DIODE FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME
    40.
    发明申请
    LIGHT EMITTING DIODE FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME 有权

    公开(公告)号：US20220392879A1

    公开(公告)日：2022-12-08

    申请号：US17844653

    申请日：2022-06-20

    Applicant: Seoul Viosys Co., Ltd.

    Inventor： Jong Hyeon CHAE ,  Chang Yeon Kim ,  Ho Joon Lee ,  Seong Gyu Jang ,  Chung Hoon Lee ,  Dae Sung Cho

    IPC: H01L25/13 ,  H01L25/075 ,  H01L33/00 ,  H01L27/15 ,  H01L33/40 ,  H01L33/50 ,  H01L33/62

    Abstract: A light emitting device including a first LED sub-unit having a thickness in a first direction, a second LED sub-unit disposed on a portion of the first LED sub-unit in the first direction, each of the first and second LED sub-units comprising a first-type semiconductor layer, a second-type semiconductor layer, and an active layer, a reflective electrode disposed adjacent to the first LED sub-unit and electrically connected to the first-type semiconductor layer of the first LED sub-unit, and a first ohmic electrode forming ohmic contact with the second-type semiconductor layer of the first LED sub-unit, in which the active layer of the first LED sub-unit is configured to generate light, includes AlxGa(1-x-y)InyP (0≤x≤1, 0≤y≤1), and overlaps the active layer of the second LED sub-unit in the first direction, and the active layer of the second LED sub-unit includes the same material as the active layer of the first LED sub-unit.

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