公开(公告)号：US20230261033A1

公开(公告)日：2023-08-17

申请号：US18136843

申请日：2023-04-19

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

CPC classification number: H01L27/156 ,  H01L33/62 ,  H01L25/0756 ,  H01L33/0093 ,  H01L25/13 ,  H01L33/10 ,  H01L33/405 ,  H01L33/42 ,  H01L33/507 ,  H01L25/0753 ,  H01L25/0655

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：US20230253394A1

公开(公告)日：2023-08-10

申请号：US18136290

申请日：2023-04-18

Applicant: Seoul Viosys Co., Ltd.

Inventor： Chung Hoon Lee

IPC: H01L25/00 ,  H01L33/62 ,  H01L25/065 ,  H01L33/00

CPC classification number: H01L25/50 ,  H01L25/0655 ,  H01L33/62 ,  H01L33/0093 ,  H01L27/15 ,  H01L2933/0066

Abstract: A light emitting device including a substrate, at least two light emitting cells disposed on the substrate, a light shielding layer disposed between the at least two light emitting cells, and having openings each exposing one surface of each of the light emitting cells, and bonding parts filling the openings, and disposed between the light emitting cells and the substrate.

公开(公告)号：US20230223424A1

公开(公告)日：2023-07-13

申请号：US18121598

申请日：2023-03-15

Applicant: SEOUL VIOSYS CO., LTD.

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

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/10 ,  H01L33/30 ,  H01L25/075 ,  H01L33/40 ,  H01L33/60 ,  H01L33/42 ,  H01L33/08 ,  H01L27/12 ,  H01L33/00 ,  H01L25/16 ,  G09G3/32 ,  H01L33/38 ,  H01L33/22 ,  H01L33/24 ,  H01L29/45 ,  H01L33/46 ,  H01L33/58

CPC classification number: H01L27/156 ,  H01L33/504 ,  H01L33/10 ,  H01L33/30 ,  H01L25/0756 ,  H01L33/405 ,  H01L33/60 ,  H10K59/353 ,  H01L33/42 ,  H10K59/352 ,  H01L33/08 ,  H01L27/1214 ,  H01L33/0093 ,  H01L25/167 ,  G09G3/32 ,  H01L33/38 ,  H10K59/38 ,  H01L33/0008 ,  H01L33/22 ,  H10K59/35 ,  H01L33/385 ,  H10K2102/00 ,  H01L33/24 ,  H01L29/45 ,  H10K59/32 ,  H01L33/46 ,  H01L33/58

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.

公开(公告)号：US11664409B2

公开(公告)日：2023-05-30

申请号：US17366462

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 ,  H01L27/12 ,  H01L27/32 ,  H01L25/07 ,  H01L33/10 ,  H01L33/30 ,  H01L33/40 ,  H01L33/50 ,  H01L33/08 ,  H01L33/38 ,  H01L33/42 ,  H01L33/46 ,  H01L33/58 ,  H01L33/60 ,  H01L25/075 ,  H01L33/00 ,  H01L25/16 ,  G09G3/32 ,  H01L33/22 ,  H01L29/45 ,  H01L33/24

CPC classification number: H01L27/156 ,  H01L25/0756 ,  H01L33/10 ,  H01L33/30 ,  H01L33/405 ,  H01L33/504 ,  G09G3/32 ,  H01L25/167 ,  H01L27/1214 ,  H01L27/322 ,  H01L27/3209 ,  H01L27/3211 ,  H01L27/3216 ,  H01L27/3218 ,  H01L29/45 ,  H01L33/0008 ,  H01L33/0093 ,  H01L33/08 ,  H01L33/22 ,  H01L33/24 ,  H01L33/38 ,  H01L33/385 ,  H01L33/42 ,  H01L33/46 ,  H01L33/58 ,  H01L33/60 ,  H01L2251/301

Abstract: A light emitting diode (LED) stack 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, a first color filter interposed between the first LED stack and the second LED stack, and a second color filter interposed between the second LED stack and the third LED stack, in which the second LED stack and the third LED stack are configured to transmit light generated from the first LED stack to the outside, and the third LED stack is configured to transmit light generated from the second LED stack to the outside.

公开(公告)号：US11610939B2

公开(公告)日：2023-03-21

申请号：US17366510

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: H01L27/12 ,  H01L27/15 ,  H01L27/32 ,  H01L25/07 ,  H01L25/16 ,  H01L33/10 ,  H01L33/30 ,  H01L33/38 ,  H01L33/40 ,  H01L33/42 ,  H01L33/46 ,  H01L33/50 ,  H01L33/58 ,  H01L33/60 ,  H01L33/00 ,  H01L33/08 ,  H01L25/075 ,  G09G3/32 ,  H01L33/22 ,  H01L29/45 ,  H01L33/24

Abstract: A light emitting diode (LED) pixel for a display including a first LED stack, a second LED stack disposed on a partial region of the first LED stack, a third LED stack disposed on a partial region of the second LED stack, a first ohmic electrode disposed on the first LED stack and forming ohmic contact with the first LED stack, a second transparent electrode disposed between the second LED stack and the third LED stack and in ohmic contact with an upper surface of the second LED stack, and a third transparent electrode in ohmic contact with an upper surface of the third LED stack, in which the first ohmic electrode is laterally spaced apart from the second LED stack.

公开(公告)号：US11527519B2

公开(公告)日：2022-12-13

申请号：US16198873

申请日：2018-11-22

Applicant: Seoul Viosys Co., Ltd.

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

IPC: H01L25/13 ,  H01L25/075 ,  H01L33/00 ,  H01L33/62 ,  H01L33/38

Abstract: A light emitting device for a display including a first substrate, a first LED sub-unit disposed on the first 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, a second substrate disposed on the third LED sub-unit, a first electrode pad, a second electrode pad, a third electrode pad, and a fourth electrode pad disposed on the second substrate, and through-hole vias electrically connecting the second, third, and fourth electrode pads to the first, second, and third LED sub-units, respectively, in which the first electrode pad is electrically connected to the first LED sub-unit without overlapping any through-hole vias.

公开(公告)号：US11489002B2

公开(公告)日：2022-11-01

申请号：US17082018

申请日：2020-10-28

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Chung Hoon Lee ,  Dae Sung Cho

IPC: H01L27/15 ,  H01L25/075 ,  H01L33/00 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62 ,  H01L33/58

Abstract: A display apparatus including a display substrate, a plurality of light emitting devices disposed on the display substrate, a light blocking layer disposed between the light emitting devices, and a transparent layer covering the light emitting devices and the light blocking layer, in which the light emitting device includes 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 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：US11482650B2

公开(公告)日：2022-10-25

申请号：US16672691

申请日：2019-11-04

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Chung Hoon Lee

IPC: H01L33/58 ,  H01L27/15 ,  H01L33/62 ,  H01L33/38

Abstract: A light emitting device including a substrate having a first surface and a second surface opposing each other, a plurality of light emitting parts disposed on the first surface of the substrate and defining a light emitting area, and a light shielding layer disposed on the second surface of the substrate and exposing at least a portion of the light emitting area, in which the light shielding layer has a thickness greater than a length of the longest wavelength among wavelengths of light generated from the light emitting parts.

公开(公告)号：US11387383B2

公开(公告)日：2022-07-12

申请号：US16788605

申请日：2020-02-12

Applicant: Seoul Viosys Co., Ltd.

Inventor： Chung Hoon Lee

IPC: H01L21/00 ,  H01L29/00 ,  H01L33/00 ,  H01L25/075

Abstract: A method of transferring a light emitting device including the steps of preparing a wafer including a substrate, semiconductor layers disposed on the substrate, and bump pads disposed on the semiconductor layers and arranged in a plurality of light emitting device regions, dividing the wafer into a plurality of light emitting devices, attaching the light emitting devices to a transfer tape disposed on a supporting substrate, such that the substrate contacts the transfer tape, preparing a circuit board including pads arranged thereon, adjoining the supporting substrate with the circuit board, so that the bump pads of at least one light emitting device contact the pads of the circuit board, bonding the at least one light emitting device to the pads by applying heat to the bump pads and the pads, and separating the at least one light emitting device bonded to the pads from the transfer tape.

公开(公告)号：US11302746B2

公开(公告)日：2022-04-12

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

IPC: H01L27/15 ,  H01L27/32 ,  H01L25/07 ,  H01L25/16 ,  H01L33/10 ,  H01L33/30 ,  H01L33/40 ,  H01L33/50 ,  H01L33/08 ,  H01L25/075 ,  H01L33/38 ,  H01L33/00

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.