公开(公告)号：US11817435B2

公开(公告)日：2023-11-14

申请号：US17075605

申请日：2020-10-20

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min Jang ,  Chang Yeon Kim

IPC: H01L25/075 ,  H01L23/00 ,  H01L33/62 ,  H01L33/38 ,  H01L33/54

CPC classification number: H01L25/0756 ,  H01L24/32 ,  H01L24/33 ,  H01L25/0753 ,  H01L33/38 ,  H01L33/54 ,  H01L33/62 ,  H01L2224/32145 ,  H01L2224/33181 ,  H01L2924/12041

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, the first, second, and third lower contact electrodes include transparent conductive oxide layers, and a thickness of the second lower contact electrode or the third lower contact electrode is greater than a thickness of the first lower contact electrode.

公开(公告)号：US11810944B2

公开(公告)日：2023-11-07

申请号：US17075636

申请日：2020-10-20

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min Jang ,  Chang Yeon Kim

IPC: H01L27/15 ,  H01L33/56 ,  H01L33/38 ,  H01L33/62

CPC classification number: H01L27/156 ,  H01L33/382 ,  H01L33/56 ,  H01L33/62

Abstract: A display apparatus including a display substrate, a plurality of light emitting devices disposed on the display substrate, at least one of the light emitting devices including 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 a molding layer covering side surfaces of the light emitting devices and exposing upper surfaces thereof, in which 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：US11798974B2

公开(公告)日：2023-10-24

申请号：US17030301

申请日：2020-09-23

Applicant: Seoul Viosys Co., Ltd.

Inventor： Dae Sung Cho ,  So Ra Lee ,  Chang Yeon Kim ,  Jong Min Jang

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

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

Abstract: A display apparatus including a circuit board and a plurality of pixels arranged on the circuit board, 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 in a lateral direction, the first light emitting device includes a first LED stack configured to generate light having a first peak wavelength; and the second light emitting device includes a second LED stack configured to generate light having a second peak wavelength, and a third LED stack disposed on the second LED stack and configured to generate light having a third peak wavelength.

公开(公告)号：US11757073B2

公开(公告)日：2023-09-12

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 ,  H01L33/62 ,  H01L33/44

CPC classification number: H01L33/58 ,  H01L25/0753 ,  H01L27/15 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0025 ,  H01L2933/0066

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.

公开(公告)号：US11749781B2

公开(公告)日：2023-09-05

申请号：US17099781

申请日：2020-11-17

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Min Jang ,  Chang Yeon Kim

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

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

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, and a length between first and second corners of the third light emitting part is less than a length between third and fourth corners of the third light emitting part.

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：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：US11626554B2

公开(公告)日：2023-04-11

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：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.