公开(公告)号：US20230378240A1

公开(公告)日：2023-11-23

申请号：US18226780

申请日：2023-07-27

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L27/15 ,  G09G3/32 ,  G09G3/20 ,  H01L33/50 ,  H01L33/40 ,  H01L33/30 ,  H01L25/075

CPC classification number: H01L27/156 ,  G09G3/32 ,  G09G3/2003 ,  H01L33/504 ,  H01L33/405 ,  H01L33/30 ,  H01L25/0756 ,  G09G2300/0452 ,  G09G2310/0267 ,  G09G2310/08 ,  H01L25/167

Abstract: A display device including a substrate, a light emitting stacked structure disposed on the substrate and including a plurality of epitaxial sub-units disposed one over another, a first adhesive layer bonding the epitaxial sub-units to the substrate; and a line part disposed on the substrate and configured to apply a light emitting signal to each of the epitaxial sub-units, in which the light emitting stacked structure is configured to provide light having various colors by a combination of light emitted from each of the epitaxial sub-units, and the first adhesive layer includes a conductive and non-transparent material.

公开(公告)号：US20230246007A1

公开(公告)日：2023-08-03

申请号：US18132942

申请日：2023-04-10

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE

IPC: H01L25/075 ,  H01L33/62

CPC classification number: H01L25/0756 ,  H01L33/62

Abstract: A light emitting device including an insulation unit, a light emitting region including first, second, and third LED stacks each including first and second conductivity type semiconductor layers, a first pillar electrically connected to the first conductivity type semiconductor layers of the first, second, and third LED stacks, and a second pillar, a third pillar, and a fourth pillar electrically connected to the second conductivity type semiconductor layers of the first, second, and third LED stacks, respectively, an intermediate first connector and a lower first connector respectively electrically connecting the first conductivity type semiconductor layers of the second LED stack and the third LED stack to the first pillar, in which the insulation unit have four corners, and the first, second, third, and fourth pillars are disposed near the four corners covering a side surface of the insulation unit, respectively.

公开(公告)号：US20230128703A1

公开(公告)日：2023-04-27

申请号：US18086663

申请日：2022-12-22

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 for a display 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, electrode pads disposed below the first LED sub-unit, and a planarization layer disposed between the first and second LED sub-units and being light transmissive, in which the electrode pads include a common electrode pad electrically connected in common to the first, second, and third LED sub-units, first, second, and third electrode pads connected to the first, second, and third LED sub-units, respectively, the first, second, and third LED sub-units are independently drivable, light generated in the first LED sub-unit is configured to be emitted to the outside through the second and third LED sub-units, and light generated in the second LED sub-unit is configured to be emitted to the outside through the third LED sub-unit.

公开(公告)号：US20220392950A1

公开(公告)日：2022-12-08

申请号：US17847136

申请日：2022-06-22

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 display apparatus including a thin film transistor (TFT) substrate; a first LED sub-unit, a second LED sub-unit, and a third LED sub-unit; first, second, third, and fourth electrode pads disposed between the TFT substrate and the first LED sub-unit; and connectors connecting the first, second, and third LED sub-units to a respective one of the electrode pads, in which the first, second, and third sub-units are configured to be independently driven; light generated from the first LED sub-unit is emitted to the outside of the display apparatus by passing through the second and third LED sub-units; light generated from the second LED sub-unit is emitted to the outside of the display apparatus by passing through the third LED sub-unit; and at least one of the connectors includes a first portion electrically connecting a first surface of the first LED sub-unit to the second electrode pad.

公开(公告)号：US20220158056A1

公开(公告)日：2022-05-19

申请号：US17526072

申请日：2021-11-15

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Se Hee OH ,  Hyun A. KIM ,  Jong Kyu KIM ,  Jong Hyeon CHAE

IPC: H01L33/62 ,  H01L33/32 ,  H01L33/10 ,  H01L33/64 ,  H01L33/44 ,  H01L33/08 ,  H01L33/38 ,  H01L33/40 ,  H01L33/60

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.

公开(公告)号：US20220005792A1

公开(公告)日：2022-01-06

申请号：US17149731

申请日：2021-01-15

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE

IPC: H01L25/075 ,  H01L33/62

Abstract: A light emitting device 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 a plurality of pillars disposed adjacent to side surfaces of the first, second, and third LED stacks, the pillars including a first pillar commonly electrically connected to the first, second, and third LED stacks, and a second pillar, a third pillar, and a fourth pillar electrically connected to the first, second, and third LED stacks, respectively.

公开(公告)号：US20210335886A1

公开(公告)日：2021-10-28

申请号：US17366420

申请日：2021-07-02

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L27/15 ,  H01L25/075 ,  H01L33/10 ,  H01L33/30 ,  H01L33/40 ,  H01L33/50

Abstract: A light emitting diode (LED) pixel for a display including a substrate, a first LED stack disposed on the substrate, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, and through-hole vias formed through the substrate, in which each of the first, second, and third LED stacks includes a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, and each of the through-hole vias is electrically connected to at least one of the first, second, and third LED stacks.

公开(公告)号：US20210043678A1

公开(公告)日：2021-02-11

申请号：US16943373

申请日：2020-07-30

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L27/15

Abstract: A display panel including a circuit board having pads thereon, and a plurality of pixel regions arranged on the circuit board, each of the pixel regions including a first LED stack disposed on the circuit board, a first bonding layer disposed between the first LED stack and the circuit board, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, first through-vias passing through the first LED stack and the first bonding layer, second through-vias passing through the second LED stack, and third through-vias passing through the third LED stack, in which the first through-vias pass through the first LED stack and the first bonding layer, and are connected to the pads of the circuit board.

公开(公告)号：US20210005785A1

公开(公告)日：2021-01-07

申请号：US17024167

申请日：2020-09-17

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.

公开(公告)号：US20200303451A1

公开(公告)日：2020-09-24

申请号：US16899522

申请日：2020-06-11

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE ,  Seang 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 display apparatus including a thin film transistor (TFT) substrate, a first LED sub-unit disposed on the TFT substrate, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, electrode pads disposed between the TFT substrate and the first LED sub-unit, and connectors connecting the first, second, and third LED sub-units to a respective one of the electrode pads, in which the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit are configured to be independently driven, light generated from the first LED sub-unit is configured to be emitted to the outside of the display apparatus by passing through the second LED sub-unit and the third LED sub-unit, and light generated from the second LED sub-unit is configured to be emitted to the outside of the display apparatus by passing through the third LED sub-unit.