公开(公告)号：US11527513B2

公开(公告)日：2022-12-13

申请号：US16673114

申请日：2019-11-04

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 ,  H01L33/50 ,  H01L33/08 ,  H01L33/38

Abstract: A light emitting device for a display including a plurality of pixel regions defined between at least one separation region disposed between the pixel regions, and a barrier disposed in the separation region, in which each of the pixel regions includes a first LED stack, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, and electrode pads electrically connected to the first, second, and third LED stacks, the electrode pads comprising a common electrode pad, a first electrode pad, a second electrode pad, and a third electrode pad, the common electrode pad is connected to the first, second, and third LED stacks, the first, second, and third electrode pads are connected to the first, second, and third LED stacks, respectively, and the first, second, and third LED stacks are configured to be independently driven using the electrode pads.

公开(公告)号：US11522006B2

公开(公告)日：2022-12-06

申请号：US16228621

申请日：2018-12-20

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/40 ,  H01L33/30 ,  G09G3/20 ,  G09G3/32 ,  H01L25/075 ,  H01L25/16

Abstract: A light emitting stacked structure including a plurality of epitaxial sub-units disposed one over another, each of the epitaxial sub-units configured to emit different colored light, in which each epitaxial sub-unit has a light emitting area that overlaps one another, and at least one epitaxial sub-unit has an area different from the area of another epitaxial sub-unit.

公开(公告)号：US20220285433A1

公开(公告)日：2022-09-08

申请号：US17826127

申请日：2022-05-26

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L27/15 ,  G09G3/32 ,  G09G3/20 ,  H01L33/50 ,  H01L33/40 ,  H01L33/30 ,  H01L25/075

Abstract: A light emitting diode pixel for a display including a first LED sub-unit, a second LED sub-unit disposed on a first portion of the first LED sub-unit, and a third LED sub-unit disposed on a second portion of the second LED sub-unit, in which each of the first, second, and third LED sub-units includes a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, light generated from the first LED sub-unit is configured to be emitted outside of the light emitting diode pixel through a third portion of the first LED sub-unit different from the first portion, and light generated from the second LED sub-unit is configured to be emitted outside of the light emitting diode pixel through a fourth portion of the second LED sub-unit different from the second portion.

公开(公告)号：US11424224B2

公开(公告)日：2022-08-23

申请号：US16855258

申请日：2020-04-22

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 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, in which the buffer material layer is disposed under the first surfaces of the light emitting devices.

公开(公告)号：US11282981B2

公开(公告)日：2022-03-22

申请号：US16198784

申请日：2018-11-22

Applicant: Seoul Viosys Co., Ltd.

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

IPC: H01L33/08 ,  H01L25/07 ,  H01L27/32 ,  H01L33/38 ,  H01L33/24 ,  H01L33/42 ,  H01L33/44 ,  H01L33/50 ,  H01L33/62 ,  H01L33/32 ,  H01L33/00 ,  H01L25/075 ,  H01L25/065 ,  H01L25/04

Abstract: A light emitting diode pixel for a display including a substrate, a first LED sub-unit disposed on the substrate, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on at least one of the first and second LED sub-units, and vias formed in the substrate, in which each of the first to third LED sub-units comprises a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, and each of the vias is electrically connected to at least one of the first, second, and third LED sub-units.

公开(公告)号：US11257796B2

公开(公告)日：2022-02-22

申请号：US16789877

申请日：2020-02-13

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Chang Yeon Kim ,  Jong Hyeon Chae ,  Jong Min Jang ,  Ho Joon Lee ,  Seong Gyu Jang

IPC: H01L25/075 ,  H01L33/22 ,  H01L33/38 ,  H01L33/40 ,  H01L33/42 ,  G02B5/26 ,  H01L33/62 ,  H01L33/08 ,  H01L33/46 ,  H01L33/64

Abstract: A light emitting device for a display including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, electrode pads disposed below the first LED sub-unit, and a filler disposed between the electrode pads, in which the electrode pads include a common electrode pad electrically connected in common to the first, second, and third LED sub-units, and first, second, and third electrode pads connected to the first, second, and third LED sub-units, respectively, the first, second, and third LED sub-units are independently drivable, light generated in the first LED sub-unit is configured to be emitted to the outside of the light emitting device through the second and third LED sub-units, and light generated in the second LED sub-unit is configured to be emitted to the outside through the third LED sub-unit.

公开(公告)号：US20210335886A1

公开(公告)日：2021-10-28

申请号：US17366420

申请日：2021-07-02

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L27/15 ,  H01L25/075 ,  H01L33/10 ,  H01L33/30 ,  H01L33/40 ,  H01L33/50

Abstract: A light emitting diode (LED) pixel for a display including a substrate, a first LED stack disposed on the substrate, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, and through-hole vias formed through the substrate, in which each of the first, second, and third LED stacks includes a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, and each of the through-hole vias is electrically connected to at least one of the first, second, and third LED stacks.

公开(公告)号：US10854670B2

公开(公告)日：2020-12-01

申请号：US16198792

申请日：2018-11-22

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L27/15 ,  H01L25/07 ,  H01L25/13 ,  H01L25/065 ,  H01L25/11 ,  H01L33/00 ,  H01L33/10 ,  H01L33/40 ,  H01L33/42 ,  H01L33/50 ,  H01L33/62 ,  H01L25/075 ,  H01L33/38

Abstract: A light emitting device including first, second, and third LED sub-units, and electrode pads disposed on the first LED sub-unit, electrically connected to the LED sub-units, and including a common electrode pad electrically connected to each of the LED sub-units, and first, second, and third electrode pads connected to a respective one of the LED sub-units, in which the common electrode pad, the second electrode pad, and the third electrode pad are electrically connected to the second LED sub-unit and the third LED sub-unit through holes that pass through the first LED sub-unit, the first, second, and third LED sub-units are configured to be independently driven, light generated in the first LED sub-unit emitted to the outside through the second and third LED sub-units, and light generated in the second LED sub-unit is emitted to the outside through the third LED sub-unit.

公开(公告)号：US20200373348A1

公开(公告)日：2020-11-26

申请号：US15930979

申请日：2020-05-13

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Seom Geun LEE ,  Seong Kyu Jang ,  Chan Seob Shin ,  Ho Joon Lee

IPC: H01L27/15 ,  H01L33/30 ,  H01L33/38 ,  H01L33/42 ,  H01L33/44 ,  H01L33/62 ,  H01L25/065

Abstract: A light emitting device for a display including a first LED stack, a second LED stack disposed thereunder, a third LED stack disposed thereunder and including first and second conductivity type semiconductor layers, a first bonding layer between the second and third LED stacks, a second bonding layer between the first and second LED stacks, an insulation layer between the second bonding layer and the second LED stack, lower buried layers passing through the second LED stack and the insulation layer and electrically connected to the first and second conductivity type semiconductor layers of the third LED stack, respectively, upper buried layers passing through the first LED stack and the second bonding layer and electrically connected to the lower buried layers, and upper connectors disposed on the first LED stack and including upper connectors covering and electrically connected to the upper buried layers, respectively.

公开(公告)号：US10714459B2

公开(公告)日：2020-07-14

申请号：US16207881

申请日：2018-12-03

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Chang Yeon Kim ,  Jong Hyeon Chae ,  Jong Min Jang ,  Ho Joon Lee ,  Seong Gyu Jang

IPC: H01L25/075 ,  H01L33/22 ,  H01L33/38 ,  H01L33/40 ,  H01L33/42 ,  G02B5/26 ,  H01L33/62 ,  H01L33/08 ,  H01L33/46 ,  H01L33/64

Abstract: A light emitting device for a display includes a substrate and first, second, and third LED sub-units, a first transparent electrode between the first and second LED sub-units and in ohmic contact with the first LED sub-unit, a second transparent electrode between the second and third LED sub-units and in ohmic contact with the second LED sub-unit, a third transparent electrode between the second transparent electrode and the third LED sub-unit and in ohmic contact with the third LED sub-unit, at least one current spreader connected to at least one of the first, second, and third LED sub-units, electrode pads disposed on the substrate, and through-hole vias formed through the substrate, in which at least one of the through-hole vias is formed through the substrate and the first and second LED sub-units.