公开(公告)号：EP4064335A1

公开(公告)日：2022-09-28

申请号：EP19953619.4

申请日：2019-11-26

Applicant: LG Electronics Inc.

Inventor： KIM, Soohyun ,  KIM, Dohan ,  CHOI, Wonseok ,  KIM, Youngdo

IPC: H01L23/00 ,  H01L25/075 ,  H01L33/00 ,  H01L33/20 ,  H01L33/36 ,  G01R1/067

Abstract: According to an embodiment of the present invention, the embodiment includes a step (a) introducing semiconductor light emitting devices including a magnetic material into a fluid chamber; a step (b) transferring a substrate extending in one direction and including assembly electrodes covered by an insulating layer and open holes exposing portions of both ends of the assembly electrodes to an assembly position; a step (c) applying a magnetic force to the semiconductor light emitting devices introduced into the fluid chamber to move in one direction; and a step (d) forming an electric field so that the moving semiconductor light emitting devices are disposed at a preset position on the substrate, and wherein in the step (d), a probe pin is in contact with the assembly electrodes exposed through the open holes to individually apply a voltage to the assembly electrodes to form an electric field.

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：EP4447136A1

公开(公告)日：2024-10-16

申请号：EP22922255.9

申请日：2022-01-19

Applicant: LG Electronics Inc.

Inventor： CHOI, Jinhyeok ,  CHUNG, Indo ,  KIM, Youngdo

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

Abstract: A display device can include a substrate, a first assembling wiring on the substrate, a second assembling wiring on the substrate, a partition wall disposed on the first and second assembling wirings and having a hole, a semiconductor light-emitting device disposed in the hole and having a first step difference part on a side portion thereof, and a connection electrode disposed on at least the first step difference part.

公开(公告)号：EP4443507A1

公开(公告)日：2024-10-09

申请号：EP22904547.1

申请日：2022-11-28

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

Inventor： KIM, Youngdo ,  JANG, Hun ,  NAM, Juhyun ,  EOM, Hyeseon ,  KIM, Minseok

IPC: H01L27/12

CPC classification number: H01L27/12

Abstract: A display device according to an embodiment includes a substrate, first assembly wiring and second assembly wiring spaced apart from each other on the substrate, a first insulating layer disposed between the first assembly wiring and the second assembly wiring, a first planarization layer disposed on the second assembly wiring and having an opening overlapping the second assembly wiring, a light emitting device disposed inside the opening and including a first semiconductor layer and a second semiconductor layer on the first semiconductor layer, and contact electrode electrically connecting the second assembly wiring and the first semiconductor layer, and the contact electrode is in contact with the second assembly wiring that overlaps the side surface of the first semiconductor layer and the first planarization layer.

公开(公告)号：EP4376086A1

公开(公告)日：2024-05-29

申请号：EP22846292.5

申请日：2022-07-22

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

Inventor： KIM, Youngdo ,  EOM, Hyeseon ,  NAM, Juhyun ,  JANG, Hun

IPC: H01L27/15 ,  H01L33/48 ,  H01L33/00 ,  H01L27/12

CPC classification number: H01L33/48 ,  H01L27/15 ,  H01L27/12 ,  H01L33/00

Abstract: A display device according to the embodiment includes a substrate, a first assembly wiring and a second assembly wiring alternately arranged on the substrate and spaced apart from each other, a planarization layer disposed on the first assembly wiring and the second assembly wiring and having an opening and a contact portion, a light emitting device disposed inside the opening and having a first electrode overlapping the first assembly wiring and the second assembly wiring, and a pixel electrode disposed on the planarization layer and in contact with the second electrode of the light emitting device through a contact portion, and the plurality of contact units may overlap a portion of at least one side of the area where the light emitting device is disposed.

公开(公告)号：EP4376085A1

公开(公告)日：2024-05-29

申请号：EP21955137.1

申请日：2021-08-27

Applicant: LG Electronics Inc.

Inventor： CHUNG, Indo ,  KIM, Yongdae ,  KIM, Youngdo

IPC: H01L27/15 ,  H01L33/48 ,  H01L33/36 ,  H01L33/62

CPC classification number: H01L33/48 ,  H01L33/62 ,  H01L33/36 ,  H01L27/15

Abstract: The display device can include a substrate, a first insulating layer on the substrate, first and second assembling wirings on the substrate, a second insulating layer disposed on the first and second assembling wirings and having a first hole and at least one or more second hole extending in a lateral direction of the first hole, a semiconductor light emitting device in the first hole, and a connection electrode in the second hole.