公开(公告)号：US20240363818A1

公开(公告)日：2024-10-31

申请号：US18572064

申请日：2021-06-30

Applicant: LG ELECTRONICS INC.

Inventor： Jeonghyo KWON ,  Wonseok CHOI ,  Junoh SHIN ,  Sungmin PARK

IPC: H01L33/62 ,  H01L25/16

CPC classification number: H01L33/62 ,  H01L25/167

Abstract: The display device can comprise a first wiring, a second wiring disposed on a different layer from the first wiring, a pad disposed on the same layer as the second wiring and that vertically overlaps the first wiring, and on the pad and the second wiring. It is disposed and can comprise an insulating layer having an assembly hole, and a semiconductor light emitting device disposed on a pad and a second wiring within the assembly hole. The embodiment prevents separation of the semiconductor light emitting device, improves the light efficiency of the semiconductor light emitting device to implement high luminance, and significantly improves light efficiency, thereby implementing further improved high resolution.

公开(公告)号：US20210265541A1

公开(公告)日：2021-08-26

申请号：US17153592

申请日：2021-01-20

Applicant: LG ELECTRONICS INC.

Inventor： Soohyun KIM ,  Wonseok CHOI ,  Sungmin PARK

IPC: H01L33/62 ,  H01L27/15 ,  H01L33/38 ,  H01L33/00

Abstract: Discussed are a display device and a method of manufacturing the same, and more particularly, to a display device including a semiconductor light emitting device having a size of several μm to several tens of μm and a method of manufacturing the same. The present disclosure provides a display device, including a base portion, a plurality of transistors disposed on the base portion, a plurality of semiconductor light emitting devices disposed on the base portion, a plurality of wiring electrodes disposed on the base portion, and electrically connected to the plurality of transistors and the plurality of semiconductor light emitting devices, a partition wall disposed on the base portion, and formed to cover the plurality of transistors, and a connection electrode connecting some of the plurality of transistors and some of the plurality of wiring electrodes, wherein the connection electrode is configured to pass through the partition wall.

公开(公告)号：US20230375879A1

公开(公告)日：2023-11-23

申请号：US18247782

申请日：2020-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Sungmin PARK ,  Wonseok CHOI ,  Soohyun KIM

IPC: G02F1/13357 ,  H01L27/12

CPC classification number: G02F1/133611 ,  G02F1/133603 ,  H01L27/124 ,  H01L25/167

Abstract: The present invention is applicable to a display device-related technical field, and relates to, for example, a flat lighting device and a display device using a light-emitting diode (LED). The present invention relates to a display device including a plurality of individual unit compartment regions, comprising: at least one light-emitting diode provided in the individual unit compartment regions; a gate-on voltage line connected to the light-emitting diode; a first scan line for applying a common voltage to the plurality of individual unit compartment regions; a second scan line for applying a voltage inverted from the common voltage to the plurality of individual unit compartment regions; a data line for applying individual switching voltages to the plurality of individual unit compartment regions; a driving unit including a driving MOSFET device connected to the light-emitting diode; and a switching unit including a switching MOSFET device connected to the first scan line and the data line to perform a switching operation.

公开(公告)号：US20220415859A1

公开(公告)日：2022-12-29

申请号：US17619549

申请日：2019-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Wonseok CHOI ,  Soohyun KIM ,  Sungmin PARK

IPC: H01L25/075 ,  H01L21/683 ,  H01L33/62

Abstract: Disclosed in the present specification are a micro LED display device in which an assembly electrode capable of forming a non-uniform electric field is assembled in a provided assembly hole, and a manufacturing method therefor. The display device according to one embodiment of the present invention comprises: a substrate; a first assembly electrode and a second assembly electrode arranged to be spaced apart on the substrate; an insulating layer deposited on top of the first assembly electrode and the second assembly electrode; an assembly hole defining a pixel area formed on the insulating layer; a semiconductor light-emitting element assembled in the assembly hole; and a wiring electrode electrically connected to the semiconductor light-emitting element, wherein the first assembly electrode and the second assembly electrode have a pattern for generating non-uniform electric field in the assembly hole by means of applied voltage, and the semiconductor light-emitting element is assembled, on the basis of the non-uniform electric field, at a specific location in the assembly hole after moving in a specific direction.

公开(公告)号：US20240332453A1

公开(公告)日：2024-10-03

申请号：US18692202

申请日：2021-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyuk LEE ,  Chilkeun PARK ,  Byoungkwon CHO ,  Sungmin PARK

IPC: H01L33/20 ,  H01L25/075 ,  H01L33/44

CPC classification number: H01L33/20 ,  H01L25/0753 ,  H01L33/44

Abstract: The semiconductor light emitting device may include a light emitting unit, a first electrode on the bottom and side of the light emitting unit, and a second electrode on the top of the light emitting unit, a plurality of trenches on the sides of the light emitting unit, and a passivation layer on a side of the light emitting unit, and an end of the passivation layer may be located in one of the plurality of trenches.

公开(公告)号：US20240038825A1

公开(公告)日：2024-02-01

申请号：US18227788

申请日：2023-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Byoungkwon CHO ,  Wonseok CHOI ,  Jeonghyo KWON ,  Sungmin PARK

IPC: H01L27/15 ,  G09G3/32 ,  H01L33/24 ,  H01L33/44 ,  H01L33/40

CPC classification number: H01L27/156 ,  G09G3/32 ,  H01L33/24 ,  H01L33/44 ,  H01L33/405 ,  G09G2300/0842

Abstract: The embodiment relates to a semiconductor light emitting device for a display pixel and a display device including the same. A semiconductor light emitting device for a display pixel according to an embodiment can include a light emitting structure including a first conductivity type semiconductor layer, a second conductivity type semiconductor layer and an active layer disposed therebetween, a passivation layer disposed on the light emitting structure, and a second electrode layer disposed under the light emitting structure. The light emitting structure may include a rounding semiconductor layer in which an upper surface thereof is partially rounded.

公开(公告)号：US20230401993A1

公开(公告)日：2023-12-14

申请号：US18028257

申请日：2020-09-25

Applicant: LG ELECTRONICS INC.

Inventor： Wonseok CHOI ,  Sungmin PARK ,  Soohyun KIM

IPC: G09G3/32 ,  G09G3/20 ,  H01L33/00

CPC classification number: G09G3/32 ,  G09G3/2092 ,  G09G2320/0626 ,  G09G2310/0278 ,  H01L33/0004

Abstract: The present invention is applicable to a display device-related technical field, and relates to, for example, a flat lighting device and a display device using a light-emitting diode (LED). The present invention relates to a display device including a plurality of individual unit compartment regions, comprising: at least one light-emitting diode provided in the individual unit compartment regions; a gate-on voltage line connected to the light-emitting diode; a scan line for applying a common voltage to the plurality of individual unit compartment regions; a data line for applying individual switching voltages to the plurality of individual unit compartment regions; a driving unit including a driving MOSFET device connected to the light-emitting diode; and a switching unit including a switching MOSFET device connected to the scan line and the data line to perform a switching operation.

公开(公告)号：US20230064316A1

公开(公告)日：2023-03-02

申请号：US17793209

申请日：2020-01-21

Applicant: LG ELECTRONICS INC.

Inventor： Sungyun PARK ,  Dohan KIM ,  Soohyun KIM ,  Sungmin PARK

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/42 ,  H01L33/60

Abstract: A display device of the present invention relates to a structure for bottom emission, comprising: a base part; assembly electrodes which extend in one direction and which are formed on the base part; a dielectric layer formed to cover the assembly electrodes; a barrier rib part which has a plurality of cells, and which is stacked on the dielectric layer; and semiconductor light-emitting elements loaded in the cell, wherein the assembly electrodes include a metal electrode part formed of a metal material and a transparent electrode part formed of a transparent material.

公开(公告)号：US20230023582A1

公开(公告)日：2023-01-26

申请号：US17786666

申请日：2020-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Sungmin PARK ,  Wonseok CHOI ,  Soohyun KIM

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

Abstract: A display device can include a base part, a semiconductor light emitting device disposed on a first region of the base part, and a plurality of assembly electrodes extending along one direction on the base part and to which a voltage is applied to dispose the semiconductor light emitting device at a pre-set position on the first region. The plurality of assembly electrodes are disposed not to overlap a thin film transistor.

公开(公告)号：US20240355788A1

公开(公告)日：2024-10-24

申请号：US18685475

申请日：2021-08-26

Applicant: LG ELECTRONICS INC.

Inventor： Sungmin PARK ,  Byoungkwon CHO ,  Wonseok CHOI

IPC: H01L25/075 ,  H01L33/22 ,  H01L33/44 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L33/22 ,  H01L33/44 ,  H01L33/62

Abstract: A semiconductor light emitting device includes a light emitting part, a first electrode including a bonding layer below the light emitting part, a barrier around the bonding layer, a second electrode on the light emitting part, and a passivation layer to surround the light emitting part and the second electrode.