公开(公告)号：US12272681B2

公开(公告)日：2025-04-08

申请号：US18535545

申请日：2023-12-11

Applicant: Seoul Viosys Co., Ltd.

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

IPC: H01L25/075 ,  H10H20/01 ,  H10H20/855 ,  H10H20/857

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 second surface opposite to the first surface, 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, and a cover layer covering the second surface of the light emitting devices, in which the buffer material layer is disposed under the first surfaces of the light emitting devices and has grooves in a region between adjacent light emitting devices, a portion of a top surface of the buffer material layer is disposed between adjacent light emitting devices, and the cover layer fills the grooves of the buffer material layer.

公开(公告)号：US12199214B2

公开(公告)日：2025-01-14

申请号：US17586804

申请日：2022-01-28

Applicant: Seoul Viosys Co., Ltd.

Inventor： Keum Ju Lee ,  Seom Geun Lee ,  Kyoung Wan Kim ,  Yong Woo Ryu ,  Mi Na Jang

IPC: H01L33/14 ,  H01L27/15 ,  H01L33/06 ,  H01L33/10 ,  H01L33/32 ,  H01L33/38 ,  H01L33/42 ,  H01L33/62

Abstract: A light emitting diode including a substrate having a first area and a second area defined by an isolation groove line, a semiconductor stack disposed on the substrate and including a lower semiconductor layer, an upper semiconductor layer, an active layer, a first electrode pad electrically connected to the lower semiconductor layer, a second electrode pad electrically connected to the upper semiconductor layer, and a connecting portion electrically connecting the semiconductor stack disposed in the first and second areas to each other, and including a first portion, a second portion, and a third portion extending from a second distal end of the first portion, in which the isolation groove line is disposed between the first and second electrode pads and exposes the substrate, the first portion extends along a first direction substantially parallel to an extending direction of the isolation groove line, and the second and third portions extend in a second direction crossing the first direction.

公开(公告)号：US12154934B2

公开(公告)日：2024-11-26

申请号：US17970573

申请日：2022-10-21

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon Chae ,  Seom Geun Lee ,  Seong Kyu Jang

IPC: H01L27/15 ,  H01L25/075 ,  H01L33/00 ,  H01L33/22 ,  H01L33/42 ,  H01L33/60 ,  H01L33/62

Abstract: A light emitting device for a display including a first LED stack configured to generate light having a first peak wavelength, a second LED stack disposed under the first LED stack, and configured to generate light having a second peak wavelength, a third LED stack disposed under the second LED stack, and configured to generate light having a third peak wavelength; and a floating reflection layer disposed over the first LED stack, in which the first peak wavelength is longer than the second and third peak wavelengths, the first LED stack has a roughened surface to increase the luminous intensity of the light generated in the first LED stack entering the second LED stack, and the floating reflection layer has a high reflectance of 80% or more over light having the first peak wavelength.

公开(公告)号：US12040344B2

公开(公告)日：2024-07-16

申请号：US17318475

申请日：2021-05-12

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Seong Kyu Jang ,  Seom Geun Lee ,  Yong Woo Ryu

IPC: H01L27/15 ,  H01L33/62

CPC classification number: H01L27/15 ,  H01L33/62 ,  H01L2933/0066

Abstract: A stacked light emitting device includes a first LED stack, a second LED stack disposed under the first LED stack, a third LED stack disposed under the second LED stack, and a plurality of pads disposed over the first LED stack. Each of the first, second, and third LED stacks has a light generation region and a peripheral region disposed around the light generation region. The plurality of pads is disposed on the peripheral region of the first LED stack.

公开(公告)号：US11842987B2

公开(公告)日：2023-12-12

申请号：US17866249

申请日：2022-07-15

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

CPC classification number: H01L25/0753 ,  H01L33/0093 ,  H01L33/58 ,  H01L33/62 ,  H01L2933/0058 ,  H01L2933/0066

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 second surface opposite to the first surface, 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, and a cover layer covering the second surface of the light emitting devices, in which the buffer material layer is disposed under the first surfaces of the light emitting devices and has grooves in a region between adjacent light emitting devices, a portion of a top surface of the buffer material layer is disposed between adjacent light emitting devices, and the cover layer fills the grooves of the buffer material layer.

公开(公告)号：US11621253B2

公开(公告)日：2023-04-04

申请号：US16666626

申请日：2019-10-29

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon Chae ,  Chan Seob Shin ,  Seom Geun Lee ,  Ho Joon Lee ,  Seong Kyu Jang

IPC: H01L25/075 ,  H01L33/08 ,  H01L33/62 ,  H01L33/00

Abstract: A light emitting device including a first light emitting part having a first area, a second light emitting part having a second area, and a third light emitting part having a third area, in which the first light emitting part is disposed on the same plane as the second light emitting part, the third light emitting part is disposed over the first and second light emitting parts, and the third area is larger than each of the first and second areas.

公开(公告)号：US11508778B2

公开(公告)日：2022-11-22

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 ,  H01L33/62 ,  H01L25/065 ,  H01L33/44

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：US20190148588A1

公开(公告)日：2019-05-16

申请号：US16246192

申请日：2019-01-11

Applicant: Seoul Viosys Co., Ltd.

Inventor： Keum Ju Lee ,  Seom Geun Lee ,  Kyoung Wan Kim ,  Yong Woo Ryu ,  Mi Na Jang

IPC: H01L33/14 ,  H01L33/42 ,  H01L27/15 ,  H01L33/38 ,  H01L33/62 ,  H01L33/32 ,  H01L33/10 ,  H01L33/06

Abstract: A light emitting diode includes: a substrate; a semiconductor stack disposed on the substrate and including a lower semiconductor layer, an upper semiconductor layer and an active layer interposed between the lower semiconductor layer and the upper semiconductor layer, the semiconductor stack having an isolation groove exposing the substrate through the upper semiconductor layer, the active layer and the lower semiconductor layer; a first electrode pad and an upper extension portion electrically connected to the upper semiconductor layer; a second electrode pad and a lower extension portion electrically connected to the lower semiconductor layer; a connecting portion connecting the upper extension portion and the lower extension portion to each other across the isolation groove; a first current blocking layer interposed between the lower extension portion and the lower semiconductor layer; and a second current blocking layer interposed between the second electrode pad and the lower semiconductor layer.

公开(公告)号：US10256387B2

公开(公告)日：2019-04-09

申请号：US15663219

申请日：2017-07-28

Applicant: Seoul Viosys Co., Ltd.

Inventor： Se Hee Oh ,  Mae Yi Kim ,  Seom Geun Lee ,  Myoung Hak Yang ,  Yeo Jin Yoon

IPC: H01L27/15 ,  H01L33/08 ,  H01L33/14 ,  H01L33/38 ,  H01L33/42 ,  H01L33/62

Abstract: A light emitting diode including a first light emitting cell and a second light emitting cell separated from each other on a substrate, a first transparent electrode layer electrically connected to the first light emitting cell, an interconnection electrically connecting the first light emitting cell to the second light emitting cell, and a first insulation layer. The first transparent electrode layer is disposed on an upper surface of the first light emitting cell and partially covers a side surface of the first light emitting cell. The first insulation layer separates the first transparent electrode layer from the side surface of the first light emitting cell, and includes an opening to expose a lower semiconductor layer of the first light emitting cell.

公开(公告)号：US09735329B2

公开(公告)日：2017-08-15

申请号：US15147619

申请日：2016-05-05

Applicant: Seoul Viosys Co., Ltd.

Inventor： Se Hee Oh ,  Mae Yi Kim ,  Seom Geun Lee ,  Myoung Hak Yang ,  Yeo Jin Yoon

IPC: H01L33/62 ,  H01L33/38 ,  H01L33/42 ,  H01L33/08 ,  H01L27/15 ,  H01L33/14

CPC classification number: H01L33/62 ,  H01L27/15 ,  H01L27/156 ,  H01L33/08 ,  H01L33/14 ,  H01L33/385 ,  H01L33/387 ,  H01L33/42 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A light emitting diode including a first light emitting cell and a second light emitting cell separated from each other on a substrate, a first transparent electrode layer electrically connected to the first light emitting cell, an interconnection electrically connecting the first light emitting cell to the second light emitting cell, and a first insulation layer disposed on the first and second light emitting cells. The first transparent electrode layer is disposed on an upper surface of the first light emitting cell and partially covers a side surface of the first light emitting cell. The first insulation layer separates the first transparent electrode layer from the side surface of the first light emitting cell.