公开(公告)号：EP3993048A1

公开(公告)日：2022-05-04

申请号：EP19934921.8

申请日：2019-07-09

Applicant: LG Electronics Inc.

Inventor： KIM, Gunho ,  SHIM, Bongchu ,  KIM, Youngdo

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/02

Abstract: According to an embodiment of the present disclosure, an assembly board for use in a display manufacturing method for allowing semiconductor light emitting diodes to be seated at preset positions on the assembly board using an electric field and a magnetic field, includes a base portion, a plurality of assembly electrodes extending in one direction and disposed on the base portion at predetermined intervals, a dielectric layer stacked on the base portion to cover the assembly electrodes, barrier ribs stacked on the dielectric layer while forming cells in which semiconductor light emitting diodes are seated at the predetermined intervals along an extending direction of the assembly electrodes so as to overlap a portion of the assembly electrode, and a voltage applying unit connected to at least both ends of the assembly electrodes to apply a voltage signal to the assembly electrodes, wherein voltage signals of the same polarity are applied to the assembly electrodes from the voltage applying unit connected to the both ends.

公开(公告)号：EP4174941A1

公开(公告)日：2023-05-03

申请号：EP20941942.3

申请日：2020-06-26

Applicant: LG Electronics, Inc.

Inventor： KIM, Kisu ,  LEE, Jinhyung ,  KIM, Gunho ,  KIM, Jungsub

IPC: H01L25/075 ,  H01L27/15 ,  H01L23/498

Abstract: A substrate for manufacturing a display apparatus according to the present invention comprises: a base portion; paired electrodes extending in one direction and arranged on the base portion; a dielectric layer formed on the base portion to cover assembly electrodes; a partition wall portion formed on the dielectric layer; and cells formed by the partition wall portion and arranged in the extension direction of the paired electrodes to overlap the paired electrodes, wherein the paired electrodes are arranged at different intervals.

公开(公告)号：EP3975238A1

公开(公告)日：2022-03-30

申请号：EP19929883.7

申请日：2019-05-28

Applicant: LG Electronics Inc.

Inventor： LEE, Hyunho ,  SHIM, Bongchu ,  KIM, Gunho

IPC: H01L23/00 ,  H01L33/00

Abstract: A self-assembly apparatus and method of the present invention for semiconductor light-emitting devices can separate semiconductor light-emitting devices attached to each other by vibrating a fluid during self-assembly to thereby prevent mis-assembly and, for smooth assembly of the semiconductor light emitting devices, generate a flow of the fluid along the movement direction of a magnet. The self-assembly apparatus comprises: a chamber in which a plurality of semiconductor light-emitting devices comprising a magnetic substance and a fluid are accommodated; a transfer unit for transferring, to an assembly location, a substrate on which the semiconductor light-emitting devices are to be assembled; a magnet spaced apart from the chamber to apply a magnetic force to the semiconductor light-emitting devices; a location control unit for controlling a location of the magnet; and a vibration generation unit for generating vibration in the fluid to thereby separate the semiconductor light-emitting devices from each other.