公开(公告)号：US10784240B2

公开(公告)日：2020-09-22

申请号：US16234541

申请日：2018-12-27

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L33/38 ,  H01L25/13 ,  H01L33/50 ,  H01L33/40 ,  H01L25/075 ,  H01L33/20 ,  H01L33/00 ,  H01L33/62

Abstract: A light emitting diode pixel for a display includes a first subpixel, a second subpixel, and a third subpixel, each of the first, second, and third subpixels including a first LED sub-unit including a first type of semiconductor layer and a second type of semiconductor layer, a second LED sub-unit disposed on the first LED sub-unit and including a first type of semiconductor layer and a second type of semiconductor layer, and a third LED sub-unit disposed on the second LED sub-unit and including a first type of semiconductor layer and a second type of semiconductor layer, in which the second and third LED sub-units of the first subpixel are electrically floated, the first and third LED sub-units of the second subpixel are electrically floated, and the first and second LED sub-units of the third subpixel are electrically floated.

公开(公告)号：US10748881B2

公开(公告)日：2020-08-18

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.

公开(公告)号：US10741530B2

公开(公告)日：2020-08-11

申请号：US16234541

申请日：2018-12-27

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L33/38 ,  H01L25/13 ,  H01L33/50 ,  H01L33/40 ,  H01L25/075 ,  H01L33/20 ,  H01L33/00 ,  H01L33/62

Abstract: A light emitting diode pixel for a display includes a first subpixel, a second subpixel, and a third subpixel, each of the first, second, and third subpixels including a first LED sub-unit including a first type of semiconductor layer and a second type of semiconductor layer, a second LED sub-unit disposed on the first LED sub-unit and including a first type of semiconductor layer and a second type of semiconductor layer, and a third LED sub-unit disposed on the second LED sub-unit and including a first type of semiconductor layer and a second type of semiconductor layer, in which the second and third LED sub-units of the first subpixel are electrically floated, the first and third LED sub-units of the second subpixel are electrically floated, and the first and second LED sub-units of the third subpixel are electrically floated.

公开(公告)号：US20190165207A1

公开(公告)日：2019-05-30

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 ,  H01L33/44 ,  H01L33/42 ,  H01L33/24 ,  H01L33/62 ,  H01L33/50

Abstract: A light emitting chip includes a light emitting structure including a first light emitting sub-unit, a second light emitting sub-unit, and a third light emitting sub-unit vertically stacked on each other, and a first passivation layer covering at least part of the light emitting structure, in which the first passivation layer has a bottom surface that exposes the light emitting structure to permit light from the first, second, and third sub-units to be emitted from the light emitting chip.

公开(公告)号：US20190165038A1

公开(公告)日：2019-05-30

申请号：US16198796

申请日：2018-11-22

Applicant: SEOUL VIOSYS CO., LTD.

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

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

Abstract: A light emitting diode (LED) stack for a display includes a first LED sub-unit having a first surface and a second surface, a second LED sub-unit disposed on the first surface of the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a reflective electrode disposed on the second side of the second LED sub-unit and forming ohmic contact with the first LED sub-unit, and an ohmic electrode interposed between the first LED sub-unit and the second LED sub-unit and forming ohmic contact with the first LED sub-unit, in which the second LED sub-unit and the third LED sub-unit are configured to transmit light generated from the first LED sub-unit, and the third LED sub-unit is configured to transmit light generated from the second LED sub-unit.

公开(公告)号：US12107081B2

公开(公告)日：2024-10-01

申请号：US18077188

申请日：2022-12-07

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 ,  H01L33/38 ,  H01L33/50

CPC classification number: H01L25/0753 ,  H01L33/08 ,  H01L33/38 ,  H01L33/50

Abstract: A display apparatus including a substrate, and pixel regions and at least one separation region between the pixel regions, each pixel region including a first LED stack, a second LED stack adjacent to the first LED stack, a third LED stack adjacent to the second LED stack and each having a side surface forming a first angle, a second angle, and a third angle with the substrate, respectively, electrode pads electrically connected to the first, second, and third LED stacks, and an insulation layer disposed on at least one of the first, second, and third LED stacks, in which the first LED stack is configured to emit light having a longer peak wavelength than that emitted from the second and third LED stacks, and the first angle is different from the second and third angles.

公开(公告)号：US12009384B2

公开(公告)日：2024-06-11

申请号：US17366462

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 ,  H01L25/07 ,  H01L25/075 ,  H01L27/12 ,  H01L27/32 ,  H01L33/08 ,  H01L33/10 ,  H01L33/30 ,  H01L33/38 ,  H01L33/40 ,  H01L33/42 ,  H01L33/46 ,  H01L33/50 ,  H01L33/58 ,  H01L33/60 ,  H10K59/35 ,  H10K59/38 ,  G09G3/32 ,  H01L25/16 ,  H01L29/45 ,  H01L33/00 ,  H01L33/22 ,  H01L33/24 ,  H10K59/32 ,  H10K102/00

CPC classification number: H01L27/156 ,  H01L25/0756 ,  H01L33/10 ,  H01L33/30 ,  H01L33/405 ,  H01L33/504 ,  G09G3/32 ,  H01L25/167 ,  H01L27/1214 ,  H01L29/45 ,  H01L33/0008 ,  H01L33/0093 ,  H01L33/08 ,  H01L33/22 ,  H01L33/24 ,  H01L33/38 ,  H01L33/382 ,  H01L33/385 ,  H01L33/42 ,  H01L33/46 ,  H01L33/58 ,  H01L33/60 ,  H10K59/32 ,  H10K59/35 ,  H10K59/352 ,  H10K59/353 ,  H10K59/38 ,  H10K2102/00

Abstract: A light emitting diode (LED) stack 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, a first color filter interposed between the first LED stack and the second LED stack, and a second color filter interposed between the second LED stack and the third LED stack, in which the second LED stack and the third LED stack are configured to transmit light generated from the first LED stack to the outside, and the third LED stack is configured to transmit light generated from the second LED stack to the outside.

公开(公告)号：US11973104B2

公开(公告)日：2024-04-30

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 ,  G09G3/20 ,  G09G3/32 ,  H01L25/075 ,  H01L25/16 ,  H01L33/30 ,  H01L33/40 ,  H01L33/50

CPC classification number: H01L27/156 ,  G09G3/2003 ,  G09G3/32 ,  H01L25/0756 ,  H01L33/30 ,  H01L33/405 ,  H01L33/504 ,  G09G2300/0452 ,  G09G2310/0267 ,  G09G2310/08 ,  H01L25/167

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：US11923348B2

公开(公告)日：2024-03-05

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: H01L33/38 ,  H01L25/075 ,  H01L25/13 ,  H01L33/40 ,  H01L33/50 ,  H01L33/00 ,  H01L33/20 ,  H01L33/62

CPC classification number: H01L25/13 ,  H01L25/0756 ,  H01L33/38 ,  H01L33/405 ,  H01L33/505 ,  H01L33/0093 ,  H01L33/20 ,  H01L33/62

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.

公开(公告)号：US11563052B2

公开(公告)日：2023-01-24

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 ,  H01L27/12 ,  H01L27/32 ,  H01L25/07 ,  H01L25/16 ,  H01L33/10 ,  H01L33/30 ,  H01L33/40 ,  H01L33/50 ,  H01L33/60 ,  H01L33/38 ,  H01L33/00 ,  H01L33/08 ,  H01L33/42 ,  H01L33/46 ,  H01L33/58 ,  H01L33/22 ,  H01L33/24 ,  H01L25/075 ,  G09G3/32 ,  H01L29/45

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.