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    LED DISPLAY PANEL, LED DISPLAY APPARATUS HAVING THE SAME AND METHOD OF FABRICATING THE SAME
    3.
    发明申请
    LED DISPLAY PANEL, LED DISPLAY APPARATUS HAVING THE SAME AND METHOD OF FABRICATING THE SAME 有权

    公开(公告)号：US20220367427A1

    公开(公告)日：2022-11-17

    申请号：US17866249

    申请日：2022-07-15

    Applicant: Seoul Viosys Co., Ltd

    Inventor： Seong Kyu JANG ,  Seom Geun LEE ,  Chan Seob SHIN ,  Ho Joon LEE

    IPC: H01L25/075 ,  H01L33/58 ,  H01L33/00 ,  H01L33/62

    Abstract: A display panel including a circuit board having pads, light emitting devices electrically connected to the pads and arranged on the circuit board, each light emitting device having a first surface facing the circuit board and a second surface opposite to the first surface, a buffer material layer disposed between the circuit board and the light emitting devices to fill a space between the circuit board and the light emitting devices, and a cover layer covering the second surface of the light emitting devices, in which the buffer material layer is disposed under the first surfaces of the light emitting devices and has grooves in a region between adjacent light emitting devices, a portion of a top surface of the buffer material layer is disposed between adjacent light emitting devices, and the cover layer fills the grooves of the buffer material layer.

    LIGHT EMITTING DEVICE FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME
    5.
    发明申请
    LIGHT EMITTING DEVICE FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME 审中-公开

    公开(公告)号：US20200295228A1

    公开(公告)日：2020-09-17

    申请号：US16815823

    申请日：2020-03-11

    Applicant: SEOUL VIOSYS CO., LTD.

    Inventor： Seong Kyu JANG ,  Chan Seob SHIN ,  Seom Geun LEE ,  Ho Joon LEE

    IPC: H01L33/24 ,  H01L33/62 ,  H01L25/075

    Abstract: A light emitting device for a display including first, second, and third LED stacks, and bump pads disposed on the first LED stack, in which each LED stack includes a first semiconductor layer and a second semiconductor layer exposing a portion of the first semiconductor layer, the first LED stack includes upper through-holes and the second LED stack includes lower through-holes, the bump pads include a first bump pad electrically connected to the second semiconductor layer of the first LED stack, a second bump pad electrically connected to the second semiconductor layer of the second LED stack through the upper through-hole, a third bump pad electrically connected to the second semiconductor layer of the third LED stack through the upper through-hole and the lower through-hole, and a common bump pad electrically connected to the first semiconductor layers of each LED stack in common.

    LIGHT EMITTING DEVICE
    9.
    发明申请
    LIGHT EMITTING DEVICE 审中-公开

    公开(公告)号：US20200152829A1

    公开(公告)日：2020-05-14

    申请号：US16745758

    申请日：2020-01-17

    Applicant: Seoul Viosys Co., Ltd.

    Inventor： Seong Kyu JANG ,  Hong Suk Cho ,  Kyu Ho Lee ,  Chi Hyun In

    IPC: H01L33/02 ,  H01L33/46 ,  H01L23/00 ,  H01L33/48 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62

    Abstract: A light emitting device including a substrate, a first semiconductor layer, a mesa disposed thereon and including a second semiconductor layer and an active layer, a first contact electrode contacting the first semiconductor layer exposed around the mesa, a second contact electrode contacting the second semiconductor layer, a passivation layer covering the first contact electrode, the mesa, and the second contact electrode and having openings disposed on the first and second contact electrodes, and first and second bump electrodes electrically connected to the first and second contact electrodes through the openings, respectively, in which the mesa has indentations in plan view, the first contact electrode is spaced apart from the mesa by a predetermined distance, surrounds the mesa, and contacts the first semiconductor layer in the indentations, and each of the first and second bump electrodes covers one of the openings of the passivation layer and a portion thereof.

    SEMICONDUCTOR LIGHT EMITTING DEVICE
    10.
    发明申请
    SEMICONDUCTOR LIGHT EMITTING DEVICE 审中-公开

    公开(公告)号：US20180182921A1

    公开(公告)日：2018-06-28

    申请号：US15851468

    申请日：2017-12-21

    Applicant: Seoul Viosys Co., Ltd.

    Inventor： Seong Kyu JANG ,  Ju Yong PARK ,  Kyu Ho LEE ,  Joon Hee LEE

    IPC: H01L33/40 ,  H01L33/38 ,  H01L33/32 ,  H01L33/62

    CPC classification number: H01L33/405 ,  H01L33/06 ,  H01L33/20 ,  H01L33/32 ,  H01L33/38 ,  H01L33/42 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0066

    Abstract: A semiconductor light emitting device includes a first semiconductor layer, an active layer disposed on the first semiconductor layer to emit ultraviolet light, a second semiconductor layer disposed on the active layer, and a first electrode disposed on the first semiconductor layer and being in Ohmic contact with a portion of the first semiconductor layer, the first electrode including a contact electrode including aluminum (Al) and at least one other material and having a first region adjacent to the first semiconductor layer and a second region, with each region having an Al composition ratio defined by the amount of Al relative to the amount of the at least one other material, wherein the Al composition ratio of the first region is greater than the Al composition ratio of the second region, and a metal layer disposed on the contact electrode.

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