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公开(公告)号:US20190280178A1
公开(公告)日:2019-09-12
申请号:US16424178
申请日:2019-05-28
Applicant: SEOUL VIOSYS CO., LTD. , SEOUL VIOSYS CO., LTD.
Inventor: Se Hee OH , Hyun A KIM , Jong Kyu KIM , Jong Hyeon CHAE
Abstract: A light emitting diode having a plurality of light emitting cells is provided. The light emitting diode according to an exemplary embodiment includes a lower insulation layer covering an ohmic reflection layer, connectors disposed on the lower insulation layer to connect the light emitting cells, and an upper insulation layer covering the connectors and the lower insulation layer. An edge of the lower insulation layer is spaced apart farther from an edge of the upper insulation layer than an edge of the light emitting cell. The lower insulation layer susceptible to moisture may be protected and reliability of the light emitting diode may improve.
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公开(公告)号:US20240429346A1
公开(公告)日:2024-12-26
申请号:US18824779
申请日:2024-09-04
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Jong Hyeon CHAE , Seom Geun LEE , Seong Kyu JANG
Abstract: A light emitting device for a display including 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 including a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, a surface protection layer at least partially covering side surfaces of the first LED stack, the second LED stack, or the third LED stack, a first bonding layer interposed between the second LED stack and the third LED stack, a second bonding layer interposed between the first LED stack and the second LED stack, lower buried vias passing through the second LED stack and the first bonding layer, and electrically connected to the first conductivity type semiconductor layer and the second conductivity type semiconductor layer of the third LED stack, respectively, and upper buried vias passing through the first LED stack.
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公开(公告)号:US20240339488A1
公开(公告)日:2024-10-10
申请号:US18745419
申请日:2024-06-17
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Jong Hyeon CHAE , Chung Hoon LEE , Seong Gyu JANG , Chang Yeon KIM , Ho Joon LEE
IPC: H01L27/15 , G09G3/32 , H01L25/075 , H01L25/16 , H01L27/12 , H01L29/45 , H01L33/00 , H01L33/08 , H01L33/10 , H01L33/22 , H01L33/24 , H01L33/30 , H01L33/38 , H01L33/40 , H01L33/42 , H01L33/46 , H01L33/50 , H01L33/58 , H01L33/60 , H10K59/32 , H10K59/35 , H10K59/38 , 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) pixel for a display including a first LED stack having a first well layer, a second LED stack disposed on the first LED stack and having a second well layer, a third LED stack disposed on the second LED stack and having a third well layer, a first electrode disposed on the first LED stack and in ohmic contact with the first LED stack, a second electrode disposed on the second LED stack and in ohmic contact with a surface of the second LED stack, and a third electrode in ohmic contact with a surface of the third LED stack, in which the first well layer includes at least one base material different from that of the second well layer.
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公开(公告)号:US20240266385A1
公开(公告)日:2024-08-08
申请号:US18595069
申请日:2024-03-04
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Chung Hoon LEE , Jong Hyeon CHAE , Seong Gyu JANG , Ho Joon LEE
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.
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公开(公告)号:US20230369301A1
公开(公告)日:2023-11-16
申请号:US18226779
申请日:2023-07-27
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Seom Geun LEE , Seong Kyu JANG , Yong Woo RYU , Jong Hyeon CHAE
IPC: H01L25/075 , H01L33/42 , H01L33/62
CPC classification number: H01L25/0756 , H01L33/42 , H01L25/0753 , H01L33/62
Abstract: A light emitting module including a circuit board and a lighting emitting device thereon and including first, second, and third LED stacks each 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, a first planarization layer between the second bonding layer and the third LED stack, a second planarization layer on the first LED stack, a lower conductive material extending along sides of the first planarization layer, the second LED stack, the first bonding layer, and electrically connected to the first conductivity type semiconductor layers of each LED stack, respectively, and an upper conductive material between the circuit board and the lower conductive material.
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公开(公告)号:US20230071708A1
公开(公告)日:2023-03-09
申请号:US17983239
申请日:2022-11-08
Applicant: SEOUL VIOSYS CO., LTD.
Inventor: Seong Gyu JANG , Chan Seob SHIN , Seom Geum LEE , Ho Joon Lee , Jong Hyeon CHAE
Abstract: A light emitting device including first, second, and third light emitting parts one over another along a first direction, a first conductive pattern at least partially disposed between the second and third light emitting parts and including a first portion extending in a second direction perpendicular to the first direction and electrically coupled with the second light emitting part, and a second portion extending from one end of the first portion, a second conductive pattern disposed on and electrically coupled to the third light emitting part, and a first passivation covering the first light emitting part and including a first portion extending in the second direction and a second portion extending from one end of the first portion and forming an inclined angle with the second direction, in which the first conductive pattern at least partially overlaps with the second portion of the first passivation.
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公开(公告)号:US20220085239A1
公开(公告)日:2022-03-17
申请号:US17539050
申请日:2021-11-30
Applicant: Seoul Viosys Co., Ltd.
Inventor: Chang Yeon KIM , Jong Hyeon CHAE , Chung Hoon LEE , Seong Gyu JANG , Jong Min JANG , Ho Joon LEE
Abstract: A light emitting diode (LED) pixel for a display including a light emitting structure configured to generate light and comprising at least one active layer, a first passivation layer surrounding side surfaces and an upper portion of the light emitting structure, the first passivation layer including via holes, and a plurality of via contacts filling the via holes and electrically connected to the light emitting structure, in which the via holes do not overlap the at least one active layer, and an area of the first passivation layer is greater than that of the light emitting structure in plan view.
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公开(公告)号:US20200328250A1
公开(公告)日:2020-10-15
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
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.
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公开(公告)号:US20200176636A1
公开(公告)日:2020-06-04
申请号:US16782969
申请日:2020-02-05
Applicant: Seoul Viosys Co., Ltd.
Inventor: Jong Hyeon CHAE , Joon Sup LEE , Daewoong SUH , Won Young ROH , Min Woo KANG , Jong Min JANG , Se Hee OH , Hyun A KIM
IPC: H01L33/38
Abstract: A light emitting diode is provided to include a first conductive-type semiconductor layer; a mesa including a second conductive-type semiconductor layer disposed on the first conductive-type semiconductor layer and an active layer interposed between the first and the second conductive-type semiconductor layers; and a first electrode disposed on the mesa, wherein the first conductive-type semiconductor layer includes a first contact region disposed around the mesa along an outer periphery of the first conductive-type semiconductor layer; and a second contact region at least partially surrounded by the mesa, the first electrode is electrically connected to at least a portion of the first contact region and at least a portion of the second contact region, and a linewidth of an adjoining region between the first contact region and the first electrode is greater than the linewidth of an adjoining region between the second contact region and the first electrode.
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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
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.
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