公开(公告)号：US20210126046A1

公开(公告)日：2021-04-29

申请号：US17075636

申请日：2020-10-20

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min JANG ,  Chang Yeon KIM

IPC: H01L27/15 ,  H01L33/62 ,  H01L33/38 ,  H01L33/56

Abstract: A display apparatus including a display substrate, a plurality of light emitting devices disposed on the display substrate, at least one of the light emitting devices including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, and a third LED sub-unit disposed on the second LED sub-unit, and a molding layer covering side surfaces of the light emitting devices and exposing upper surfaces thereof, in which the third LED sub-unit is disposed closer to an upper surface of the light emitting device than the first LED sub-unit.

公开(公告)号：US20190273181A1

公开(公告)日：2019-09-05

申请号：US16409603

申请日：2019-05-10

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Mi Hee LEE ,  Chang Yeon KIM ,  Ju Yong PARK ,  Jong Kyun YOU ,  Joon Hee LEE

IPC: H01L33/20 ,  H01L33/38 ,  H01L33/32 ,  H01L33/10

Abstract: A light emitting diode includes: a first conductivity type semiconductor layer; a mesa including an active layer and a second conductivity type semiconductor layer, the mesa having a groove disposed under some region of the first conductivity type semiconductor layer to expose an edge of the first conductivity type semiconductor layer, the groove exposing the first conductivity type semiconductor layer; a first electrode including a first contact portion electrically connected to the first conductivity type semiconductor layer through the groove; a second electrode disposed between the first electrode and the second conductivity type semiconductor layer and electrically connected to the second conductivity type semiconductor layer; and an upper electrode pad disposed adjacent to the first conductivity type semiconductor layer and connected to the second electrode, wherein the groove has a shape surrounding a region including a center of the mesa and partially open.

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.

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.

公开(公告)号：US20250070100A1

公开(公告)日：2025-02-27

申请号：US18940305

申请日：2024-11-07

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 ,  H01L27/15 ,  H01L33/00 ,  H01L33/38 ,  H01L33/40 ,  H01L33/50 ,  H01L33/62

Abstract: A light emitting device including a first LED sub-unit having a thickness in a first direction, a second LED sub-unit disposed on a portion of the first LED sub-unit in the first direction, each of the first and second LED sub-units comprising a first-type semiconductor layer, a second-type semiconductor layer, and an active layer, a reflective electrode disposed adjacent to the first LED sub-unit and electrically connected to the first-type semiconductor layer of the first LED sub-unit, and a first ohmic electrode forming ohmic contact with the second-type semiconductor layer of the first LED sub-unit, in which the active layer of the first LED sub-unit is configured to generate light, includes AlxGa(1-x-y)InyP (0≤x≤1, 0≤y≤1), and overlaps the active layer of the second LED sub-unit in the first direction, and the active layer of the second LED sub-unit includes the same material as the active layer of the first LED sub-unit.

公开(公告)号：US20240421135A1

公开(公告)日：2024-12-19

申请号：US18816527

申请日：2024-08-27

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

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：US20240355991A1

公开(公告)日：2024-10-24

申请号：US18763447

申请日：2024-07-03

Applicant: Seoul Viosys Co., Ltd.

Inventor： Jong Min JANG ,  Chang Yeon KIM

IPC: H01L33/62 ,  H01L27/15 ,  H01L33/24 ,  H01L33/50

CPC classification number: H01L33/62 ,  H01L27/15 ,  H01L33/24 ,  H01L33/50

Abstract: A light emitting device including a first light emitting part, a second light emitting part disposed on a first surface of the first light emitting part, and a third light emitting part disposed on a first surface of the second light emitting part, a first contact member contacting a surface of a second n-type semiconductor layer of the second light emitting part, an ohmic electrode electrically connected to a third p-type semiconductor layer of the third light emitting part, and an adhesive layer disposed between the second light emitting part and the third light emitting part, in which the first contact member extends toward the first light emitting part to be electrically connected to a first n-type semiconductor layer of the first light emitting part, and the adhesive layer extends toward the ohmic electrode.

公开(公告)号：US20240297206A1

公开(公告)日：2024-09-05

申请号：US18645663

申请日：2024-04-25

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE ,  Seong Gyu JANG ,  Ho Joon LEE ,  Chang Yeon KIM ,  Chung Hoon LEE

IPC: H01L27/15 ,  H01L25/065 ,  H01L25/075 ,  H01L25/11 ,  H01L25/13 ,  H01L33/00 ,  H01L33/10 ,  H01L33/38 ,  H01L33/40 ,  H01L33/42 ,  H01L33/50 ,  H01L33/62 ,  H10K10/84 ,  H10K50/813 ,  H10K50/818 ,  H10K50/822 ,  H10K50/828 ,  H10K59/32 ,  H10K59/35

CPC classification number: H01L27/156 ,  H01L25/0756 ,  H01L25/13 ,  H01L33/0093 ,  H01L33/10 ,  H01L33/405 ,  H01L33/42 ,  H01L33/507 ,  H01L33/62 ,  H01L25/0655 ,  H01L25/0753 ,  H01L25/115 ,  H01L33/38 ,  H01L33/382 ,  H10K10/84 ,  H10K50/813 ,  H10K50/818 ,  H10K50/822 ,  H10K50/828 ,  H10K59/32 ,  H10K59/35

Abstract: A light emitting diode (LED) stack for a display including a first LED stack including a first conductivity-type semiconductor layer and a second conductivity-type semiconductor layer, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, an intermediate bonding layer disposed between the first LED stack and the second LED stack to bond the second LED stack to the first LED stack, an upper bonding layer disposed between the second LED stack and the third LED stack to couple the third LED stack to the second LED stack, and a first hydrophilic material layer disposed between the first LED stack and the upper bonding layer.

公开(公告)号：US20230402437A1

公开(公告)日：2023-12-14

申请号：US18237390

申请日：2023-08-23

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min JANG ,  Chang Yeon KIM

IPC: H01L25/075 ,  H01L23/00

CPC classification number: H01L25/0756 ,  H01L25/0753 ,  H01L24/32 ,  H01L24/33 ,  H01L2924/12041 ,  H01L33/62

Abstract: A light emitting device including first, second, and third light emitting stacks each including first and second conductivity type semiconductor layers, a first lower contact electrode in ohmic contact with the first light emitting stack, and second and third lower contact electrodes respectively in ohmic contact with the second conductivity type semiconductor layers of the second and third light emitting stacks, in which the first lower contact electrode is disposed between the first and second light emitting stacks, the second and third lower contact electrodes are disposed between the second and third light emitting stacks, and the first, second, and third lower contact electrodes include transparent conductive oxide layers.

公开(公告)号：US20230343810A1

公开(公告)日：2023-10-26

申请号：US18218386

申请日：2023-07-05

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Chang Yeon KIM ,  Jong Hyeon Chae ,  Jong Ming Jang ,  Ho Joon Lee ,  Seong Gyu Jang

IPC: H01L27/15 ,  H01L33/22 ,  H01L33/38 ,  H01L33/40 ,  H01L33/42 ,  G02B5/26 ,  H01L33/62 ,  H01L33/08 ,  H01L25/075

CPC classification number: H01L27/15 ,  H01L33/22 ,  H01L33/38 ,  H01L33/405 ,  H01L33/42 ,  G02B5/26 ,  H01L33/62 ,  H01L33/08 ,  H01L25/0756 ,  H01L33/46

Abstract: A light emitting device including a first LED sub-unit, a second LED sub-unit disposed under the first LED sub-unit, a third LED sub-unit disposed under the second LED sub-unit, a first ohmic electrode interposed between the first LED sub-unit and the second LED sub-unit, and in ohmic contact with the first LED sub-unit, a second ohmic electrode interposed between the second LED sub-unit and the third LED sub-unit, and in ohmic contact with the second LED sub-unit, a third ohmic electrode interposed between the second ohmic electrode and the third LED sub-unit, and in ohmic contact the third LED sub-unit, a plurality of electrode pads disposed on the first LED sub-unit, in which at least one of the first ohmic electrode, the second ohmic electrode, and the third ohmic electrode has a patterned structure.