公开(公告)号：US20180277524A1

公开(公告)日：2018-09-27

申请号：US15754900

申请日：2016-08-26

Applicant: LG ELECTRONICS INC.

Inventor： Sunghyun MOON ,  Younghak CHANG ,  Jina JEON ,  Seonhoo KIM ,  Youngjoo YEE ,  Hwankuk YUH

IPC: H01L25/075 ,  H01L33/62 ,  H01L33/22

CPC classification number: H01L25/0753 ,  H01L21/677 ,  H01L21/6835 ,  H01L33/0095 ,  H01L33/22 ,  H01L33/62 ,  H01L2221/68354 ,  H01L2933/0033 ,  H01L2933/0066

Abstract: The present invention relates to a display device and, more particularly, to a transfer head for a semiconductor light-emitting device applied to the display device and a method for transferring a semiconductor light-emitting device. The transfer head for a semiconductor light-emitting device, according to the present invention, comprises: a base substrate; and an electrode unit disposed on the base substrate to generate an electrostatic force by charging an un-doped semiconductor layer of the semiconductor light-emitting device with electric charges, wherein the base substrate and the electrode unit are formed of light-transmitting materials so that at least a part of the semiconductor light-emitting device is viewable through the base substrate and the electrode unit in sequence.

公开(公告)号：US20230275200A1

公开(公告)日：2023-08-31

申请号：US18016220

申请日：2020-07-17

Applicant: LG ELECTRONICS INC.

Inventor： Dohyung LEE ,  Sangdae PARK ,  Hwankuk YUH ,  Jaegwang UM

IPC: H01L33/62 ,  H01L25/16 ,  H01L27/12

CPC classification number: H01L33/62 ,  H01L25/167 ,  H01L27/124 ,  H01L2933/0066

Abstract: Discussed is a display device that can include a base portion including a plurality of pixel areas, a plurality of semiconductor light-emitting elements disposed in the plurality of pixel areas, and a plurality of thin-film transistors disposed in the plurality of pixel areas and driving the plurality of semiconductor light-emitting elements. The plurality of pixel areas can include a first sub-pixel area in which a red semiconductor light-emitting element is dispose,; a second sub-pixel area in which a green semiconductor light-emitting element is disposed, a third sub-pixel area in which a blue semiconductor light-emitting element is disposed, and a fourth sub-pixel area in which any one of the red, green, and blue semiconductor light-emitting elements may be disposed. The thin-film transistors are respectively disposed in the first to fourth sub-pixel areas.

公开(公告)号：US20230268476A1

公开(公告)日：2023-08-24

申请号：US18027558

申请日：2020-09-22

Applicant: LG ELECTRONICS INC.

Inventor： Sungguk LEE ,  Dohyung LEE ,  Sangdae PARK ,  Hwankuk YUH ,  Jaegwang UM

IPC: H01L33/62 ,  H01L33/38 ,  H01L25/075 ,  H01L27/12 ,  H01L25/16

CPC classification number: H01L33/62 ,  H01L33/382 ,  H01L25/0753 ,  H01L27/124 ,  H01L25/167

Abstract: The present invention can be applied to a technical field regarding a display device, and relates to, for example, a display device using a micro light emitting diode (LED) and a modular display device using same. The display device of the present invention may comprise: a first substrate comprising a first electrode located on a first surface and a second electrode located on a second surface which is an opposite surface to the first surface; a second substrate located on the first substrate and comprising a connection wire that defines multiple individual pixel regions, the second substrate being located on the first substrate so as to have an exposure portion exposing at least a portion of the first electrode on the first substrate; a connection electrode which contacts the exposure portion through the side surface of the second substrate to connect the first electrode of the first substrate to the connection wire of the second substrate; and a light emitting device connected to the connection wire of the second substrate.

公开(公告)号：US20230197892A1

公开(公告)日：2023-06-22

申请号：US18106671

申请日：2023-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Changseo PARK ,  Kiseong JEON ,  Jinhong PARK ,  Hwankuk YUH

IPC: H01L33/08 ,  H01L25/075 ,  H05B33/10 ,  H05B33/14 ,  H05B33/22 ,  H01L33/38 ,  H05K1/11

CPC classification number: H01L33/08 ,  H01L25/0753 ,  H01L33/382 ,  H05B33/10 ,  H05B33/14 ,  H05B33/22 ,  H05K1/111 ,  H01L33/62

Abstract: A display device, including a substrate having a plurality of metal pads; and a plurality of semiconductor light emitting devices electrically connected to the metal pads. A respective semiconductor light emitting device includes an n-type semiconductor layer, an active layer and a p-type semiconductor layer, a conductive electrode on the p-type semiconductor layer; and a passivation layer configured to surround the respective semiconductor light emitting device and including a through hole through which the conductive electrode is exposed. Further, the conductive electrode includes a protruding portion protruding through the through hole of the passivation layer and overlapping outer surfaces of the passivation layer. Also, the protruding portion of the conductive electrode contacts a corresponding metal pad, and a width of the protruding portion of the conductive electrode is greater than a width of the corresponding metal pad.

公开(公告)号：US20190157502A1

公开(公告)日：2019-05-23

申请号：US16037174

申请日：2018-07-17

Applicant: LG DISPLAY CO., LTD. ,  LG ELECTRONICS INC.

Inventor： Joonkwon MOON ,  Hwankuk YUH ,  Taesu OH

IPC: H01L33/00 ,  H01L21/67 ,  H01L21/683 ,  H01L25/16

Abstract: A growth substrate including micro-light emitting diode (LED) chips and a method of manufacturing a light emitting diode display using the growth substrate are disclosed. The growth substrate includes LED chips. The LED chips are divided into n groups each including p LED chips, where each of the n and p is an integer equal to or greater than 2. At least two of the n groups are adjacent to each other. Each of the n includes a first LED chip having a directionality toward a first direction and a second LED chip having a directionality toward a second direction different from the first direction.

公开(公告)号：US20170117257A1

公开(公告)日：2017-04-27

申请号：US15140339

申请日：2016-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Eunah LEE ,  Sangwook BYUN ,  Hwankuk YUH

IPC: H01L25/075 ,  H01L33/62 ,  H01L33/24 ,  H01L33/58 ,  H01L33/00 ,  H01L33/50 ,  H01L33/60 ,  H01L33/32 ,  H01L33/38

CPC classification number: H01L25/0753 ,  H01L33/007 ,  H01L33/0079 ,  H01L33/20 ,  H01L33/24 ,  H01L33/32 ,  H01L33/38 ,  H01L33/382 ,  H01L33/50 ,  H01L33/505 ,  H01L33/58 ,  H01L33/60 ,  H01L33/62 ,  H01L2933/0066

Abstract: A display device including a substrate; a first electrode on the substrate; and a plurality of semiconductor light emitting devices disposed on the first electrode; and a second electrode. Further, at least one of the semiconductor light emitting devices includes a first conductive semiconductor layer; a second conductive semiconductor layer overlapping with the first conductive semiconductor layer; and an active layer between the first conductive semiconductor layer and the second conductive semiconductor layer. In addition, an upper surface of the second conductive layer includes a recess groove having a bottom portion and a lateral wall portion formed along an edge of the second conductive semiconductor layer, and the second electrode extends partially on the bottom portion of the groove and on the lateral wall portion.

公开(公告)号：US20150001556A1

公开(公告)日：2015-01-01

申请号：US14319976

申请日：2014-06-30

Applicant: LG ELECTRONICS INC.

Inventor： Hyunggu KIM ,  Hwankuk YUH ,  Hyosang YU

IPC: H01L33/48 ,  C30B29/40 ,  C30B25/18

CPC classification number: C30B29/403 ,  C30B25/04 ,  C30B25/183 ,  H01L21/0237 ,  H01L21/02433 ,  H01L21/02458 ,  H01L21/02516 ,  H01L21/0254 ,  H01L21/0262 ,  H01L21/02639 ,  H01L21/02647 ,  H01L33/007 ,  H01L33/12 ,  H01L33/16 ,  H01L33/20 ,  Y10T428/24355

Abstract: A growth substrate including a substrate having a growth surface including a plurality of steps inclining in a first direction; a first layer disposed on the growth surface, the first layer including an A-plane or an M-plane in an upper part thereof, a plurality of protrusions having an inclined surface on an upper surface thereof, and nitride; a mask layer including a dielectric material and having at least a portion disposed on the protrusions; and a second layer disposed on the mask layer and including nitride.

Abstract translation: 一种生长衬底，包括具有包括在第一方向上倾斜的多个台阶的生长表面的衬底; 设置在所述生长面上的第一层，所述第一层在其上部包括A面或M面，在其上表面具有倾斜表面的多个突起和氮化物; 掩模层，其包括介电材料，并且至少具有设置在所述突起上的部分; 以及设置在掩模层上并包括氮化物的第二层。

公开(公告)号：US20250072182A1

公开(公告)日：2025-02-27

申请号：US18808988

申请日：2024-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Seonock KIM ,  Hwankuk YUH

IPC: H01L33/60 ,  H01L25/075 ,  H01L33/52

Abstract: A display device including the semiconductor light emitting device according to an embodiment including a planarization layer disposed on the semiconductor light emitting device, a first opaque filler disposed to be spaced apart on the planarization layer, and a light reflective filling layer disposed around the semiconductor light emitting device, wherein the light reflective filling layer is positioned lower than the top surface of the semiconductor light emitting device.

公开(公告)号：US20240262220A1

公开(公告)日：2024-08-08

申请号：US18577931

申请日：2022-11-01

Applicant: LG ELECTRONICS INC.

Inventor： Jiho LEE ,  Hoon HUR ,  Hwankuk YUH ,  Kangsuk LEE ,  Jungyoun RUE ,  Heemin YUN ,  Byungsoo AN

IPC: B60L53/14 ,  B60L53/30

CPC classification number: B60L53/14 ,  B60L53/305 ,  B60Y2200/91

Abstract: A charging system is a charging system comprising a charger for charging an electric vehicle, in which the charger comprises: a base; a charger provided with a contact-type charging terminal that is in contact with or separated from a charging terminal disposed on a lower surface of the electric vehicle; a main cylinder connected to the base and supplying hydraulic pressure; a hydraulic regulator connected to the main cylinder and provided with an inner flow path formed therein; a first hydraulic cylinder respectively connected to the hydraulic regulator and the charger and communicating with the inner flow path; and a second hydraulic cylinder each connected to the hydraulic regulator and the base and communicating with an inner flow path.

公开(公告)号：US20220367425A1

公开(公告)日：2022-11-17

申请号：US17737648

申请日：2022-05-05

Applicant: LG ELECTRONICS INC.

Inventor： Youngkyu JEONG ,  Hwankuk YUH ,  Byeongjun CHOI ,  Sangyeol LEE ,  Jeongtak OH

IPC: H01L25/075 ,  H01L33/38 ,  H01L33/14

Abstract: A display device can include a substrate including a plurality of first sub-pixels, a plurality of second sub-pixels, a plurality of third sub-pixels; a plurality of first semiconductor light emitting devices disposed in the plurality of first sub-pixels, and configured to generate first color light of a first main wave; a plurality of second semiconductor light emitting devices disposed in the plurality of second sub-pixels, and configured to generate second color light of a second main wave; and a plurality of third semiconductor light emitting devices disposed in the plurality of third sub-pixels, and configured to generate third color light of a third main wave, in which at least some of the plurality of first semiconductor light emitting devices have different light emitting regions to compensate for a wave deviation of the first main wave.