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    Light emitting device and display apparatus having the same
    41.
    发明授权
    Light emitting device and display apparatus having the same 有权

    公开(公告)号：US12100694B2

    公开(公告)日：2024-09-24

    申请号：US18132942

    申请日：2023-04-10

    Applicant: SEOUL VIOSYS CO., LTD.

    Inventor： Jong Hyeon Chae

    IPC: H01L25/075 ,  H01L33/62

    CPC classification number: H01L25/0756 ,  H01L33/62

    Abstract: A light emitting device including an insulation unit, a light emitting region including first, second, and third LED stacks each including first and second conductivity type semiconductor layers, a first pillar electrically connected to the first conductivity type semiconductor layers of the first, second, and third LED stacks, and a second pillar, a third pillar, and a fourth pillar electrically connected to the second conductivity type semiconductor layers of the first, second, and third LED stacks, respectively, an intermediate first connector and a lower first connector respectively electrically connecting the first conductivity type semiconductor layers of the second LED stack and the third LED stack to the first pillar, in which the insulation unit have four corners, and the first, second, third, and fourth pillars are disposed near the four corners covering a side surface of the insulation unit, respectively.

    Light-emitting diode unit for display comprising plurality of pixels and display device having same
    42.
    发明授权
    Light-emitting diode unit for display comprising plurality of pixels and display device having same 有权

    公开(公告)号：US12009385B2

    公开(公告)日：2024-06-11

    申请号：US18234271

    申请日：2023-08-15

    Applicant: SEOUL VIOSYS CO., LTD.

    Inventor： Chung Hoon Lee ,  Jong Hyeon Chae

    IPC: H01L27/15 ,  H01L25/065 ,  H01L25/18

    CPC classification number: H01L27/156 ,  H01L25/0655 ,  H01L25/18

    Abstract: A light-emitting diode (LED) unit for a display including a plurality of pixels each including a first light emitting cell, a second light emitting cell, and a third light emitting cell, each of the first, second, and third light emitting cells including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, a first wavelength converter configured to convert a wavelength of light emitted from the first light emitting cell, a second wavelength converter configured to convert a wavelength of light emitted from the second light emitting cell, in which the first, second, and third light emitting cells of each pixel share the first conductivity type semiconductor layer.

    Light emitting device
    44.
    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
    46.
    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.

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