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    LIGHT EMITTING DEVICE FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME
    22.
    发明申请
    LIGHT EMITTING DEVICE FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME 有权

    公开(公告)号：US20210175280A1

    公开(公告)日：2021-06-10

    申请号：US17106150

    申请日：2020-11-29

    Applicant: SEOUL VIOSYS CO., LTD.

    Inventor： Jong Hyeon CHAE ,  Seom Geun LEE ,  Seong Kyu JANG

    IPC: H01L27/15 ,  H01L33/62 ,  H01L33/24 ,  H01L33/42 ,  H01L33/38 ,  H01L33/00

    Abstract: A light emitting device for a display including a first LED stack, a second LED stack disposed under the first LED stack, a third LED stack disposed under the second LED stack, and including a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, a surface protection layer at least partially covering side surfaces of the first LED stack, the second LED stack, or the third LED stack, a first bonding layer interposed between the second LED stack and the third LED stack, a second bonding layer interposed between the first LED stack and the second LED stack, lower buried vias passing through the second LED stack and the first bonding layer, and electrically connected to the first conductivity type semiconductor layer and the second conductivity type semiconductor layer of the third LED stack, respectively, and upper buried vias passing through the first LED stack.

    LED UNIT FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME
    24.
    发明申请
    LED UNIT FOR DISPLAY AND DISPLAY APPARATUS HAVING THE SAME 审中-公开

    公开(公告)号：US20190189596A1

    公开(公告)日：2019-06-20

    申请号：US16198850

    申请日：2018-11-22

    Applicant: SEOUL VIOSYS CO., LTD.

    Inventor： Jong Hyeon CHAE ,  Chang Yeon KIM ,  Seong Gyu JANG ,  Ho Joon LEE ,  Jong Min JANG ,  Dae Sung CHO

    IPC: H01L25/075 ,  H01L33/08 ,  H01L33/50

    CPC classification number: H01L25/0753 ,  H01L33/08 ,  H01L33/50

    Abstract: A light emitting device for a display includes first LED sub-unit, second LED, and third LED sub-units, an insulating layer substantially covering the first, second, and third LED sub-units, and electrode pads electrically connected to the first, second, and third LED sub-units, in which the first LED sub-unit is disposed on a partial region of the second LED sub-unit, the second LED sub-unit is disposed on a partial region of the third LED sub-unit, the insulating layer has openings for electrical connection between the electrode pads, a common electrode pad is connected to the first, second, and third LED sub-units through the openings in the insulating layer, first, second, and third electrode pads are connected to the first, second, and third LED sub-units, respectively, through at least one of the openings, and the first, second, and third LED sub-units are configured to be independently driven using the electrode pads.

    LIGHT EMITTING ELEMENT INCLUDING METAL BULK
    25.
    发明申请
    LIGHT EMITTING ELEMENT INCLUDING METAL BULK 审中-公开

    公开(公告)号：US20190148597A1

    公开(公告)日：2019-05-16

    申请号：US16225269

    申请日：2018-12-19

    Applicant: SEOUL VIOSYS CO., LTD.

    Inventor： Jong Hyeon CHAE ,  Chang Yeon KIM ,  Joon Sup LEE ,  Dae Woong SUH ,  Won Young ROH ,  Ju Yong PARK ,  Seung Hyun KIM

    IPC: H01L33/38 ,  H01L27/15

    Abstract: A light emitting element according to an embodiment of the present invention comprises a first conductive-type semiconductor layer including a contact region on the lower surface thereof, a light emitting structure which includes a mesa including a second conductive-type semiconductor layer and an active layer, a second electrode, a first insulation layer, an electrode cover layer, a first electrode, a second insulation layer, and a support structure. In addition, the mesa may include a body part and a plurality of protrusion parts protruding from the body part, the contact region may be disposed between the protrusion parts, and a part of the contact region may overlap with a second metal bulk in the vertical direction. Accordingly, current spreading efficiency can be improved, and thus luminance efficiency can be more improved.

    LIGHT-EMITTING DIODE UNIT FOR DISPLAY COMPRISING PLURALITY OF PIXELS AND DISPLAY DEVICE HAVING SAME
    29.
    发明公开
    LIGHT-EMITTING DIODE UNIT FOR DISPLAY COMPRISING PLURALITY OF PIXELS AND DISPLAY DEVICE HAVING SAME 审中-公开

    公开(公告)号：US20240290820A1

    公开(公告)日：2024-08-29

    申请号：US18658378

    申请日：2024-05-08

    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.

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