LIGHT-EMITTING ELEMENT FOR DISPLAY AND DISPLAY DEVICE COMPRISING SAME

    公开(公告)号:EP3923326A1

    公开(公告)日:2021-12-15

    申请号:EP20753265.6

    申请日:2020-02-06

    摘要: A light-emitting element for a display according to one embodiment comprises: a first LED lamination; a second LED lamination; a third LED lamination; a first transparent electrode interposed between the first LED lamination and the second LED lamination and being in ohmic contact with the lower surface of the first LED lamination; a second transparent electrode interposed between the first LED lamination and the second LED lamination and being in ohmic contact with the upper surface of the second LED lamination; a third transparent electrode interposed between the second LED lamination and the third LED lamination and being in ohmic contact with the upper surface of the third LED lamination; an n electrode pad disposed on a first conductive semiconductor layer of the third LED lamination; a lower p electrode pad disposed on the third transparent electrode; and bump pads arranged on the first LED lamination, wherein the upper surface of the n electrode pad is located at the same height as that of the upper surface of the lower p electrode pad.

    LIGHT-EMITTING ELEMENT FOR DISPLAY
    3.
    发明公开

    公开(公告)号:EP4407697A2

    公开(公告)日:2024-07-31

    申请号:EP24169073.4

    申请日:2020-02-06

    IPC分类号: H01L33/00

    摘要: A light-emitting element for a display according to one embodiment comprises: a first LED lamination; a second LED lamination; a third LED lamination; a first transparent electrode interposed between the first LED lamination and the second LED lamination and being in ohmic contact with the lower surface of the first LED lamination; a second transparent electrode interposed between the first LED lamination and the second LED lamination and being in ohmic contact with the upper surface of the second LED lamination; a third transparent electrode interposed between the second LED lamination and the third LED lamination and being in ohmic contact with the upper surface of the third LED lamination; an n electrode pad disposed on a first conductive semiconductor layer of the third LED lamination; a lower p electrode pad disposed on the third transparent electrode; and bump pads arranged on the first LED lamination, wherein the upper surface of the n electrode pad is located at the same height as that of the upper surface of the lower p electrode pad.

    LIGHT-EMITTING ELEMENT
    5.
    发明公开

    公开(公告)号:EP3852154A1

    公开(公告)日:2021-07-21

    申请号:EP19860392.0

    申请日:2019-09-10

    摘要: A light emitting device is provided. The light emitting device includes a first light emitting part including a first ohmic layer, a second light emitting part and including a second ohmic layer, a third light emitting part including first and second metal patterns respectively contacting semiconductor layers thereof, a first pad electrically coupled with the first ohmic layer, a second pad electrically coupled with the second ohmic layer, a third pad electrically coupled with the first metal pattern, a common pad electrically coupled with a semiconductor layer of the first and second light emitting parts and the second metal pattern, and a via structure electrically coupling the second metal pattern and the common pad between the second metal pattern and the common pad, in which the second metal pattern has a first portion contacting the first via structure and a second portion contacting the semiconductor layer of the third light emitting part.

    LIGHT-EMITTING ELEMENT FOR DISPLAY
    6.
    发明公开

    公开(公告)号:EP4407697A3

    公开(公告)日:2024-11-06

    申请号:EP24169073.4

    申请日:2020-02-06

    摘要: A light-emitting element for a display according to one embodiment comprises: a first LED lamination; a second LED lamination; a third LED lamination; a first transparent electrode interposed between the first LED lamination and the second LED lamination and being in ohmic contact with the lower surface of the first LED lamination; a second transparent electrode interposed between the first LED lamination and the second LED lamination and being in ohmic contact with the upper surface of the second LED lamination; a third transparent electrode interposed between the second LED lamination and the third LED lamination and being in ohmic contact with the upper surface of the third LED lamination; an n electrode pad disposed on a first conductive semiconductor layer of the third LED lamination; a lower p electrode pad disposed on the third transparent electrode; and bump pads arranged on the first LED lamination, wherein the upper surface of the n electrode pad is located at the same height as that of the upper surface of the lower p electrode pad.

    LIGHT-EMITTING DIODE
    8.
    发明公开

    公开(公告)号:EP3876294A1

    公开(公告)日:2021-09-08

    申请号:EP19880003.9

    申请日:2019-11-01

    摘要: A light-emitting diode is provided. A light-emitting diode comprises: a first light-emitting unit comprising a 1-1 type semiconductor layer, a first active layer and a 1-2 type semiconductor layer; a second light-emitting unit disposed on the first light-emitting unit and comprising a 2-1 type semiconductor layer, a second active layer and a 2-2 type semiconductor layer; a third light-emitting unit disposed on the second light-emitting unit and comprising a 3-1 type semiconductor layer, a third active layer and a 3-2 type semiconductor layer; a first conductive pattern comprising a first part, which is disposed inside the second light-emitting unit and is electrically connected to at least one of the 1-1 type, 1-2 type, 2-1 type and 2-2 type semiconductor layers, and a second part which extends from the first part to one surface of the second light-emitting unit between the second and third light-emitting units; and a second conductive pattern which is disposed on the third light-emitting unit and is electrically connected to the first conductive pattern, wherein the second conductive pattern comprises an area which at least partly overlaps the second part of the first conductive pattern.

    LIGHT-EMITTING DEVICE FOR DISPLAY AND DISPLAY APPARATUS COMPRISING SAME

    公开(公告)号:EP4060753A1

    公开(公告)日:2022-09-21

    申请号:EP20887672.2

    申请日:2020-11-13

    摘要: A light-emitting device for display according to an embodiment comprises: a first LED stack; a second LED stack located under the first LED stack; a third LED stack located under the second 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; a first planarization layer interposed between the second bonding layer and the second LED stack; a second planarization layer arranged on the first LED stack; first lower buried vias which are electrically connected respectively to a first conductive-type semiconductor layer and a second conductive-type semiconductor layer in the third LED stack after penetrating through the first planarization layer, the second LED stack, and the first bonding layer; and upper buried vias penetrating through the second planarization layer and the first LED stack, wherein widths of upper ends of the first lower buried vias and the upper buried vias are greater than widths of corresponding through-holes.

    LIGHT-EMITTING DIODE DISPLAY PANEL AND DISPLAY DEVICE INCLUDING SAME

    公开(公告)号:EP4012765A1

    公开(公告)日:2022-06-15

    申请号:EP20849057.3

    申请日:2020-08-04

    摘要: A display panel according to an embodiment of the present disclosure comprises: a circuit board having pads on the upper surface thereof; and a plurality of pixel regions arranged on the circuit board, wherein each of the pixel regions comprises: a first LED stack disposed on the circuit board; a first bonding layer disposed between the first LED stack and the circuit board; a second LED stack disposed on the first LED stack; a third LED stack disposed on the second LED stack; first through-vias extending through the first LED stack and the first bonding layer; second through-vias extending through the second LED stack; and third through-vias extending through the third LED stack, and the first through-vias extend through the first LED stack and the first bonding layer, and are connected to the pads on the circuit board.