公开(公告)号：US11869871B2

公开(公告)日：2024-01-09

申请号：US17286844

申请日：2019-10-08

Applicant: LG ELECTRONICS INC.

Inventor： Juchan Choi ,  Jideok Kim ,  Bongchu Shim ,  Seulbitna Lee ,  Kiseong Jeon ,  Hyunwoo Cho

IPC: H01L23/00 ,  H01L21/67 ,  H01L25/075

CPC classification number: H01L24/95 ,  H01L21/67121 ,  H01L25/0753 ,  H01L2224/95101

Abstract: Discussed is an apparatus for self-assembling semiconductor light-emitting devices, the apparatus including a fluid chamber to accommodate the semiconductor light-emitting devices, each semiconductor light-emitting device having a magnetic body; a magnet to apply a magnetic force to the semiconductor light-emitting devices while an assembly substrate is disposed at an assembly position of the self-assembly apparatus; a power supply to induce formation of an electric field on the assembly substrate to allow the semiconductor light-emitting devices to be seated at a preset positions on the assembly substrate in a process of moving the semiconductor light-emitting devices due to a change in a position of the magnet; and a fluid injector to shoot a fluid to some of the semiconductor light-emitting devices to allow the some of the semiconductor light-emitting devices seated on the assembly substrate to be separated from the assembly substrate.

公开(公告)号：US12033989B2

公开(公告)日：2024-07-09

申请号：US17558309

申请日：2021-12-21

Applicant: LG ELECTRONICS INC.

Inventor： Juchan Choi ,  Changseo Park ,  Bongchu Shim ,  Kiseong Jeon

IPC: H01L25/075 ,  H01L25/16

CPC classification number: H01L25/0753 ,  H01L25/167 ,  H01L2224/95085

Abstract: Discussed is a display device, including a substrate having an assembly region and a non-assembly region, semiconductor light emitting devices arranged on the substrate, a first wiring electrode and a second wiring electrode extended from each of the semiconductor light emitting devices, respectively, to supply an electric signal to the semiconductor light emitting devices, pair electrodes arranged on the substrate to generate an electric field when an electric current is supplied, and provided with first and second pair electrodes disposed on an opposite side to the first and second wiring electrodes with respect to the semiconductor light emitting devices, a dielectric layer disposed on the pair electrodes, and bus electrodes electrically connected to the pair electrodes, wherein the pair electrodes are arranged in parallel to each other along a direction in the assembly region, and wherein the bus electrodes are disposed in the non-assembly region.

公开(公告)号：US11239215B2

公开(公告)日：2022-02-01

申请号：US16598741

申请日：2019-10-10

Applicant: LG ELECTRONICS INC.

Inventor： Juchan Choi ,  Changseo Park ,  Bongchu Shim ,  Kiseong Jeon

IPC: H01L25/075 ,  H01L25/16

Abstract: The present disclosure provides a display device, including a substrate, a plurality of semiconductor light emitting devices arranged on the substrate, a first wiring electrode and a second wiring electrode extended from the semiconductor light emitting devices, respectively, to supply an electric signal to the semiconductor light emitting devices, a plurality of pair electrodes arranged on the substrate to generate an electric field when an electric current is supplied, and provided with first and second pair electrodes formed on an opposite side to the first and second wiring electrodes with respect to the semiconductor light emitting devices, and a dielectric layer formed to cover the pair electrodes, wherein the plurality of pair electrodes are arranged in parallel to each other along a direction.

公开(公告)号：US12046484B2

公开(公告)日：2024-07-23

申请号：US17627110

申请日：2019-07-16

Applicant: LG ELECTRONICS INC.

Inventor： Juchan Choi

IPC: H01L33/00 ,  H01L21/66 ,  H01L21/67 ,  H01L25/075 ,  H01L21/68

CPC classification number: H01L21/67017 ,  H01L22/22 ,  H01L25/0753 ,  H01L21/67259 ,  H01L21/681 ,  H01L33/007 ,  H01L33/0075 ,  H01L33/0093

Abstract: According to an embodiment of the present invention, a removal module using an electric field and a magnetic field so as to self-assemble, on cells arranged in a matrix form of an assembly substrate, semiconductor light-emitting elements introduced in a fluid accommodated in a chamber, and then remove a semiconductor light-emitting element mis-assembled with the assembly substrate comprises: a fluid supply unit for supplying the fluid; and a housing of which one side is connected to the fluid supply unit, an upper plate is adjacent to the assembly substrate, and a lower plate is adjacent to the chamber, wherein the upper plate has: a nozzle hole allowing communication between the inner space of the housing and the inner space of the chamber so that the fluid supplied from the fluid supply unit is injected at a site in which the semiconductor light-emitting element is mis-assembled on the assembly substrate; and one pair of partition parts facing each other with the nozzle hole as the center thereof.

公开(公告)号：US12013492B2

公开(公告)日：2024-06-18

申请号：US17259261

申请日：2018-12-12

Applicant: LG Electronics Inc.

Inventor： Juchan Choi ,  Jideok Kim ,  Sangok Yeo

IPC: G01S7/481 ,  G01S17/931 ,  G02B26/08 ,  G02B26/10

CPC classification number: G01S7/4817 ,  G01S17/931 ,  G02B26/085 ,  G02B26/101

Abstract: A MEMS scanner is disclosed. The MEMS scanner includes a mirror rotatable about at least one rotational axis, a gimbal disposed outside the mirror, a spring connected to the gimbal on the same line as the rotational axis of the mirror, a substrate spaced apart from an outer surface of the gimbal and connected to the gimbal via the spring, a coil disposed on the gimbal so as to adjust a rotational angle of the mirror by generating electromagnetic force by interaction with a magnetic field, which is first formed therearound, when current flows therethrough, and a plurality of combs formed between the substrate and at least one of the spring and the gimbal adjacent to the substrate so as to detect the rotational angle of the mirror.