公开(公告)号：US11978650B2

公开(公告)日：2024-05-07

申请号：US17428241

申请日：2020-09-21

Applicant: LG DISPLAY CO., LTD

Inventor： Seong Kyong Park ,  Tae Il Jung ,  Il Soo Kim ,  Jae Yong Choi

IPC: H01L21/677 ,  H01L21/67 ,  H01L25/075

CPC classification number: H01L21/67712 ,  H01L21/67144 ,  H01L21/67721 ,  H01L21/67781 ,  H01L25/075

Abstract: The present disclosure relates to an apparatus for transferring a light emitting diode (LED). The apparatus for transferring an LED includes: a pick-up unit configured to pick up at least some of multiple light emitting diodes (LEDs) arranged on one substrate, and, according to a received control signal, put down LEDs selected from among the picked-up LEDs on another substrate; and a controller configured to transmit the control signal to the pick-up unit so as to enable the pick-up unit to individually pick up or put down each of the multiple LEDs.

公开(公告)号：US20220139748A1

公开(公告)日：2022-05-05

申请号：US17428241

申请日：2020-09-21

Applicant: LG DISPLAY CO., LTD

Inventor： Seong Kyong Park ,  Tae Il Jung ,  Il Soo Kim ,  Jae Yong Choi

IPC: H01L21/677 ,  H01L21/67 ,  H01L25/075

Abstract: The present disclosure relates to an apparatus for transferring a light emitting diode (LED). The apparatus for transferring an LED includes: a pick-up unit configured to pick up at least some of multiple light emitting diodes (LEDs) arranged on one substrate, and, according to a received control signal, put down LEDs selected from among the picked-up LEDs on another substrate; and a controller configured to transmit the control signal to the pick-up unit so as to enable the pick-up unit to individually pick up or put down each of the multiple LEDs.

公开(公告)号：US11990458B2

公开(公告)日：2024-05-21

申请号：US17421684

申请日：2020-09-02

Applicant: LG Display Co., Ltd.

Inventor： Jae Yong Choi ,  Seung Jun Lee

IPC: H01L25/16 ,  H01L23/00 ,  H01L27/12 ,  H01L33/62

CPC classification number: H01L25/167 ,  H01L24/24 ,  H01L24/25 ,  H01L24/73 ,  H01L33/62 ,  H01L24/14 ,  H01L24/16 ,  H01L2224/1403 ,  H01L2224/16145 ,  H01L2224/24051 ,  H01L2224/24147 ,  H01L2224/244 ,  H01L2224/245 ,  H01L2224/25174 ,  H01L2224/73209 ,  H01L2224/73259 ,  H01L2924/0542 ,  H01L2924/0544 ,  H01L2924/0549 ,  H01L2924/12041 ,  H01L2933/0066

Abstract: The present disclosure relates to an LED display device, and more particularly, to an LED display device including a repair structure for a deteriorated pixel. In the present disclosure, a sub LED electrically coupled to first and second connecting electrodes for applying a voltage to a LED is disposed on a deteriorated LED. Thus, deterioration of a display quality due to a deteriorated pixel is prevented. Since it is not required to remove a deteriorated LED, a fabrication cost is reduced and a process efficiency is improved.