公开(公告)号：US12125831B2

公开(公告)日：2024-10-22

申请号：US18231764

申请日：2023-08-08

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min Jang ,  Chang Yeon Kim

IPC: H01L33/56 ,  H01L23/00 ,  H01L25/075 ,  H01L33/62 ,  H01L33/00

CPC classification number: H01L25/0756 ,  H01L24/32 ,  H01L24/33 ,  H01L25/0753 ,  H01L33/62 ,  H01L33/0095 ,  H01L33/56 ,  H01L2224/32145 ,  H01L2224/33181 ,  H01L2924/12041

Abstract: A light emitting device for a display including: a base layer; a first LED sub-unit, a second LED sub-unit, and a third LED sub-unit on the base layer; and a supporting layer covering the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit, in which the third LED sub-unit is configured to emit light having a shorter wavelength than that of light emitted from the first LED sub-unit, and a luminous intensity ratio of light emitted from the third LED sub-unit and the second LED sub-unit is configured to be about 6:1.

公开(公告)号：US12100695B2

公开(公告)日：2024-09-24

申请号：US18225643

申请日：2023-07-24

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min Jang ,  Chang Yeon Kim

IPC: H01L25/075 ,  H01L27/15 ,  H01L33/06 ,  H01L33/08 ,  H01L33/14 ,  H01L33/38

CPC classification number: H01L25/0756 ,  H01L27/156 ,  H01L33/06 ,  H01L33/08 ,  H01L33/14 ,  H01L33/382 ,  H01L33/387

Abstract: A light emitting device including a first light emitting part including a first n-type semiconductor layer, a first active layer, a first p-type semiconductor layer, and a first transparent electrode, a second light emitting part disposed over the first light emitting part and including a second n-type semiconductor layer, a second active layer, a second p-type semiconductor layer, and a second transparent electrode, and a third light emitting part disposed over the second light emitting part and including a third n-type semiconductor layer, a third active layer, a third p-type semiconductor layer, and a third transparent electrode, in which the light emitting device has substantially a quadrangular shape when viewed from the top, and has first to fourth corners.

公开(公告)号：US11855121B2

公开(公告)日：2023-12-26

申请号：US16848914

申请日：2020-04-15

Applicant: Seoul Viosys Co., Ltd.

Inventor： Jong Min Jang ,  Chang Yeon Kim ,  Myoung Hak Yang

IPC: H01L27/15 ,  H01L25/075 ,  H01L33/00 ,  H01L33/38 ,  H01L33/54 ,  H01L33/62 ,  H01L33/44

CPC classification number: H01L27/15 ,  H01L25/0753 ,  H01L33/007 ,  H01L33/0095 ,  H01L33/38 ,  H01L33/44 ,  H01L33/54 ,  H01L33/62 ,  H01L2933/005 ,  H01L2933/0016 ,  H01L2933/0025 ,  H01L2933/0066

Abstract: A light emitting chip 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, a first bonding layer interposed between the first and second LED sub-units, a second bonding layer interposed between second and third LED sub-units, and a first connection electrode electrically connected to and overlapping at least one of the first, second, and third LED sub-units, the first connection electrode having first and second opposing side surfaces, the first side surface having a first length and the second side surface having a second length, in which the difference in length between the first side surface and the second side surface of the first connection electrode is greater than a thickness of at least one of the LED sub-units.

公开(公告)号：US11688840B2

公开(公告)日：2023-06-27

申请号：US17133623

申请日：2020-12-23

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min Jang ,  Sung Hyun Lee ,  Chang Yeon Kim

IPC: H01L33/62 ,  H01L33/40 ,  H01L33/48 ,  H01L27/15 ,  H01L33/38

CPC classification number: H01L33/62 ,  H01L27/156 ,  H01L33/382 ,  H01L33/40 ,  H01L33/486

Abstract: A light emitting device including a first light emitting stack, a second light emitting stack disposed under the first light emitting stack, a third light emitting stack disposed under the second light emitting stack, first, second, third, and fourth connection electrodes disposed over the first light emitting stack, and electrically connected to the first, second, and third light emitting stacks, and bonding metal layers disposed on upper surfaces of the first, second, third, and fourth connection electrodes, in which each of the first, second, third, and fourth connection electrodes includes a groove on an upper surface thereof, and the bonding metal layers cover the grooves of the first, second, third, and fourth connection electrodes, respectively.

公开(公告)号：US11532664B2

公开(公告)日：2022-12-20

申请号：US16915384

申请日：2020-06-29

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L27/15 ,  H01L27/32 ,  H01L25/07 ,  H01L25/16 ,  H01L33/10 ,  H01L33/30 ,  H01L33/40 ,  H01L33/50 ,  H01L33/08 ,  H01L33/38 ,  H01L33/60 ,  H01L27/12 ,  G09G3/32 ,  H01L25/075 ,  H01L33/00 ,  H01L33/22 ,  H01L33/24 ,  H01L33/42 ,  H01L33/46 ,  H01L33/58

Abstract: A light emitting diode (LED) stack for a display including a first LED sub-unit configured to emit a first colored light, a second LED sub-unit disposed on the first LED sub-unit and configured to emit a second colored light, and a third LED sub-unit disposed on at least one of the first LED sub-unit and the second LED sub-unit and configured to emit a third colored light, in which the first LED sub-unit is configured to emit light through the second LED sub-unit and the third LED sub-unit, and the second LED sub-unit is configured to emit light through the third LED sub-unit.

公开(公告)号：US11527514B2

公开(公告)日：2022-12-13

申请号：US16673184

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 includes a pixel region including first, second, and third LED stacks, an adhesive layer disposed between the first and second LED stacks, or between the second and third LED stacks, a metal bonding layer at least partially surrounded by the adhesive layer, and disposed between and is electrically connected to the first and second LED stacks, or the second and third LED stacks, and a common electrode pad connected to the first, second, and third LED stacks, first, second, and third electrode pads 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：US11355482B2

公开(公告)日：2022-06-07

申请号：US16200036

申请日：2018-11-26

Applicant: Seoul Viosys Co., Ltd.

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

IPC: H01L25/13 ,  H01L25/075 ,  H01L33/00 ,  H01L27/15 ,  H01L33/40 ,  H01L33/50 ,  H01L33/62 ,  H01L33/38

Abstract: A light emitting diode pixel for a display including a first LED sub-unit, a second LED sub-unit disposed on a portion of the first LED sub-unit, a third LED sub-unit disposed on a portion of the second LED sub-unit, and a reflective electrode disposed adjacent to the first LED sub-unit, in which each of the first to third LED sub-units comprises an n-type semiconductor layer and a p-type semiconductor layer, each of the n-type semiconductor layers of the first, second, and third LED stacks is electrically connected to the reflective electrode, and the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit are configured to be independently driven.

公开(公告)号：US11257798B2

公开(公告)日：2022-02-22

申请号：US16200036

申请日：2018-11-26

Applicant: Seoul Viosys Co., Ltd.

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

IPC: H01L25/13 ,  H01L25/075 ,  H01L33/00 ,  H01L27/15 ,  H01L33/40 ,  H01L33/50 ,  H01L33/62 ,  H01L33/38

Abstract: A light emitting diode pixel for a display including a first LED sub-unit, a second LED sub-unit disposed on a portion of the first LED sub-unit, a third LED sub-unit disposed on a portion of the second LED sub-unit, and a reflective electrode disposed adjacent to the first LED sub-unit, in which each of the first to third LED sub-units comprises an n-type semiconductor layer and a p-type semiconductor layer, each of the n-type semiconductor layers of the first, second, and third LED stacks is electrically connected to the reflective electrode, and the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit are configured to be independently driven.

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：US10580950B2

公开(公告)日：2020-03-03

申请号：US15954465

申请日：2018-04-16

Applicant: Seoul Viosys Co., Ltd.

Inventor： Jong Hyeon Chae ,  Chang Yeon Kim ,  Sung Su Son ,  Dae Woong Suh

IPC: H01L33/62 ,  H01L33/38 ,  H01L33/44 ,  H01L33/46

Abstract: Disclosed herein is a light emitting device manufactured by separating a growth substrate in a wafer level. The light emitting device includes: a base; a light emitting structure disposed on the base; and a plurality of second contact electrodes disposed between the base and the light emitting structure, wherein the base includes at least two bulk electrodes electrically connected to the light emitting structure and an insulation support disposed between the bulk electrodes and enclosing the bulk electrodes, the insulation support and the bulk electrodes each including concave parts and convex parts engaged with each other on surfaces facing each other, and the convex parts including a section in which a width thereof is changed in a protrusion direction.