公开(公告)号：US20250105221A1

公开(公告)日：2025-03-27

申请号：US18976077

申请日：2024-12-10

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min JANG ,  Chang Yeon KIM

IPC: H01L25/075 ,  H01L23/00 ,  H01L33/38 ,  H01L33/54 ,  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：US20240387482A1

公开(公告)日：2024-11-21

申请号：US18788883

申请日：2024-07-30

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min JANG ,  Chang Yeon KIM

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

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 to emit light having a longer wavelength than that of light emitted from the second 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：US20240088197A1

公开(公告)日：2024-03-14

申请号：US18514867

申请日：2023-11-20

Applicant: Seoul Viosys Co., Ltd.

Inventor： Jong Min JANG ,  Chang Yeon KIM ,  Myoung Hak YANG

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

CPC classification number: H01L27/15 ,  H01L25/0753 ,  H01L33/007 ,  H01L33/0095 ,  H01L33/38 ,  H01L33/44 ,  H01L33/54 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0025 ,  H01L2933/005 ,  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：US20230402571A1

公开(公告)日：2023-12-14

申请号：US18225643

申请日：2023-07-24

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min JANG ,  Chang Yeon KIM

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

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

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：US20230387179A1

公开(公告)日：2023-11-30

申请号：US18231203

申请日：2023-08-07

Applicant: Seoul Viosys Co., Ltd.

Inventor： Dae Sung CHO ,  So Ra LEE ,  Chang Yeon KIM ,  Jong Min JANG

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/62 ,  H01L33/50 ,  H01L33/04 ,  H01L33/48

CPC classification number: H01L27/156 ,  H01L33/382 ,  H01L33/62 ,  H01L33/50 ,  H01L33/04 ,  H01L33/486

Abstract: A display apparatus including a circuit board, pixels arranged on the circuit board, and a light blocking material covering one of the pixels, in which at least one of the pixels includes a first light emitting device and a second light emitting device spaced apart from each other, the first light emitting device includes a first LED stack configured to generate light having a first peak wavelength and a first bump pad, the second light emitting device includes a second LED stack configured to generate light having a second peak wavelength and a second bump pad, and the first light emitting device includes a first side surface having a region inclined at a first inclined angle, and the second light emitting device includes a second side surface facing the first side surface and having a region inclined at a second inclined angle different from the first inclined angle.

公开(公告)号：US20230207538A1

公开(公告)日：2023-06-29

申请号：US18111861

申请日：2023-02-20

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min JANG ,  Chang Yeon KIM ,  Myoung Hak YANG

IPC: H01L25/075 ,  H01L23/31 ,  H01L33/62 ,  H01L27/15

CPC classification number: H01L25/0756 ,  H01L23/3171 ,  H01L27/153 ,  H01L33/62

Abstract: A light emitting device including a board, a first stacked structure configured to emit light having a first wavelength, a second stacked structure configured to emit light having a second wavelength, a third stacked structure configured to emit light having a third wavelength, a first connection electrode electrically connected to the first stacked structure, the second stacked structure, and the third stacked structure, and a protection material covering at least a portion of the first connection electrode, in which each of the first, second, and third stacked structures is configured to selectively emit light while being connected to the first connection electrode, and the protection material is configured to transmit at least 50% of light having the first wavelength, light having the second wavelength, and light having the third wavelength upon operation of each of the first, second, and third stacked structures.

公开(公告)号：US20220406983A1

公开(公告)日：2022-12-22

申请号：US17895067

申请日：2022-08-25

Applicant: Seoul Viosys Co., Ltd.

Inventor： Jong Min JANG ,  Chang Yeon KIM

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

Abstract: A light emitting device including a first light emitting part, a second light emitting part, and a third light emitting part each including an n-type semiconductor layer, a p-type semiconductor layer, and an active layer therebetween, a first contact member electrically contacting a first surface of the n-type semiconductor layer of the second light emitting part; and a second contact member electrically contacting the n-type semiconductor layer of the third light emitting part, in which the first contact member extends to the first light emitting part to electrically contact the n-type semiconductor layer of the first light emitting part, the first contact member and the second contact member overlap one another, and the second contact member has a width that gradually decreases in a downward direction.

公开(公告)号：US20220139891A1

公开(公告)日：2022-05-05

申请号：US17521754

申请日：2021-11-08

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

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.

公开(公告)号：US20220130898A1

公开(公告)日：2022-04-28

申请号：US17518602

申请日：2021-11-04

Applicant: SEOUL VIOSYS CO., LTD.

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

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

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：US20210202806A1

公开(公告)日：2021-07-01

申请号：US17133608

申请日：2020-12-23

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min JANG ,  Sung Hyun LEE ,  Chang Yeon KIM

IPC: H01L33/58 ,  H01L25/075 ,  H01L27/15 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62

Abstract: A display apparatus including a circuit board, a plurality of light emitting devices mounted on the circuit board, a transparent substrate disposed on the light emitting devices, and a light absorbing layer disposed between the transparent substrate and the light emitting devices, in which the light absorbing layer covers upper regions of the light emitting devices and a region between the light emitting devices.