公开(公告)号：US10950583B2

公开(公告)日：2021-03-16

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 ,  H01L21/677 ,  H01L21/683 ,  H01L33/22 ,  H01L33/00 ,  H01L33/62

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：US10804425B2

公开(公告)日：2020-10-13

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 ,  H01L27/15 ,  H01L25/075 ,  H01L33/30

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：US11158610B2

公开(公告)日：2021-10-26

申请号：US16482971

申请日：2017-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Kiseong Jeon ,  Jinhong Park ,  Changseo Park ,  Hwankuk Yuh

IPC: H01L33/38 ,  H01L27/32 ,  H01L51/50 ,  H01L25/075 ,  H01L21/66 ,  H01L33/20 ,  H01L33/44 ,  H01L33/62

Abstract: The present invention relates to a display device and, more particularly, to a display device using a semiconductor light emitting element. The display device according to the present invention comprises: a substrate including a plurality of metal pads; and a green semiconductor light emitting element and a blue semiconductor light emitting element, which are electrically connected to the metal pads through self-assembly, wherein the green semiconductor light emitting element and the blue semiconductor light emitting element include identification parts having different shapes so as to be distinguishable from each other when connected to the substrate.

公开(公告)号：US10770631B2

公开(公告)日：2020-09-08

申请号：US15998662

申请日：2017-02-16

Applicant: LG ELECTRONICS INC.

Inventor： Seonock Kim ,  Hwankuk Yuh

IPC: H01L33/08 ,  H01L33/56 ,  G06F1/16 ,  H01L33/62

Abstract: A display apparatus including a display unit; a plurality of semiconductor light emitting elements having at least a first conductive electrode to form individual pixels of the display unit; an adhesive layer disposed between adjacent semiconductor light emitting elements; a thin-film transistor having a gate region disposed closer to an upper surface of the display unit than a source region and a drain region; a via hole formed in the adhesive layer; and a via hole electrode extending in the via hole and electrically connecting the at least one conductive electrode of a corresponding semiconductor light emitting element and the source-drain electrode of the thin-film transistor.

公开(公告)号：US09831222B2

公开(公告)日：2017-11-28

申请号：US15140339

申请日：2016-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Eunah Lee ,  Sangwook Byun ,  Hwankuk Yuh

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

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：US10861906B2

公开(公告)日：2020-12-08

申请号：US16465011

申请日：2017-01-31

Applicant: LG ELECTRONICS INC.

Inventor： Sangdae Park ,  Sungjin Park ,  Hwankuk Yuh ,  Sunju Lee

IPC: H01L27/32 ,  H01L33/50 ,  H01L33/58 ,  H01L33/60 ,  H01L27/15

Abstract: The present invention relates to a display device, and more particularly, to a display device using a semiconductor light-emitting diode. The display device according to the present invention comprises: a substrate having a wiring electrode formed thereon; a plurality of semiconductor light-emitting diodes electrically connected to the wiring electrode; an insulating layer provided to fill space between the semiconductor light-emitting diodes; a polarizing filter layer which is overlapped on the insulating layer and filters light incident into a specific direction; and a wavelength conversion layer which is overlapped on the polarizing filter layer and provided to convert the wavelength of light.

公开(公告)号：US10325936B2

公开(公告)日：2019-06-18

申请号：US15797835

申请日：2017-10-30

Applicant: LG Display Co., Ltd. ,  LG INNOTEK Co., Ltd. ,  LG Electronics Inc.

Inventor： HanSaem Kang ,  HyeonHo Son ,  KyungHan Seo ,  Sangyoul Lee ,  Hwankuk Yuh ,  Seung Ouk Noh

IPC: H01L27/32 ,  H01L27/12 ,  H01L33/38 ,  H01L25/075

Abstract: Disclosed is a light emitting diode display device in which a time taken in a process of connecting a light emitting device to a pixel circuit is shortened. The light emitting diode display device includes a thin film transistor (TFT) array substrate including a concave portion and a light emitting device disposed in the concave portion. The light emitting device includes a first electrode and a second electrode. The light emitting device further includes a first portion, including the first and second electrodes, and a second portion opposite to the first portion, and a distance between the first portion to a floor surface of the concave portion is greater than a distance between the second portion to the floor surface of the concave portion.

公开(公告)号：US09315920B2

公开(公告)日：2016-04-19

申请号：US14319976

申请日：2014-06-30

Applicant: LG ELECTRONICS INC.

Inventor： Hyunggu Kim ,  Hwankuk Yuh ,  Hyosang Yu

IPC: H01L27/15 ,  H01L29/26 ,  H01L31/12 ,  H01L33/00 ,  C30B29/40 ,  C30B25/18 ,  C30B25/04 ,  H01L21/02 ,  H01L33/16 ,  H01L33/20 ,  H01L33/12

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：US12090869B2

公开(公告)日：2024-09-17

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：US11605757B2

公开(公告)日：2023-03-14

申请号：US15751970

申请日：2016-08-22

Applicant: LG ELECTRONICS INC.

Inventor： Changseo Park ,  Kiseong Jeon ,  Jinhong Park ,  Hwankuk Yuh

IPC: H01L33/08 ,  H01L25/075 ,  H01L33/38 ,  H05B33/10 ,  H05B33/14 ,  H05B33/22 ,  H05K1/11 ,  H01L33/44 ,  H01L33/50 ,  H01L33/62

Abstract: The present invention relates to a display device and, in particular, to a display device using a semiconductor light emitting diode. A display device according to the present invention comprises a substrate having a plurality of metal pads; and a plurality of semiconductor light emitting diodes electrically connected to the metal pads through self-assembly. The present invention is characterized in that: the semiconductor light emitting diodes respectively include a conductive semiconductor layer, a conductive electrode formed on one surface of the conductive semiconductor layer, and a passivation layer enclosing the semiconductor light emitting diode and provided with a through hole for exposing the conductive electrode; one end portion of the semiconductor light emitting diodes is divided into a first portion in which the conductive electrode is exposed, and a second portion in which the passivation layer is exposed; and the maximum width of the metal pad is set to a range of the width to twice the width of the second portion.