公开(公告)号：US11557642B2

公开(公告)日：2023-01-17

申请号：US17113743

申请日：2020-12-07

Applicant: LG Display Co., Ltd.

Inventor： Dong Yoon Lee ,  Kwang Yong Choi ,  Seong Hwan Hwang ,  Byeong Uk Gang ,  Hye Min Park

IPC: H01L27/32 ,  H01L51/56

Abstract: The present disclosure relates to a display panel and a repair method thereof. The display panel includes a plurality of pixel circuits in which an emission region, through which light from a light-emitting element is emitted, is defined, a power line configured to apply a pixel driving voltage to the pixel circuits, a reference voltage line to which a reference voltage lower than the pixel driving voltage is applied, and a branch line connected to the reference voltage line to apply the reference voltage to one or more of the pixel circuits. At least a portion of the branch line includes a partially metalized semiconductor layer.

公开(公告)号：US11925084B2

公开(公告)日：2024-03-05

申请号：US18083213

申请日：2022-12-16

Applicant: LG Display Co., Ltd.

Inventor： Dong Yoon Lee ,  Kwang Yong Choi ,  Seong Hwan Hwang ,  Byeong Uk Gang ,  Hye Min Park

IPC: H10K59/131 ,  H10K71/00

CPC classification number: H10K59/131 ,  H10K71/00 ,  H10K71/861

Abstract: A display panel can include a substrate, a light-emitting element including an emission region on the substrate, a reference voltage line adjacent to the light-emitting element, and a branch line connected to the reference voltage line to apply a reference voltage to light-emitting element. The light-emitting element can emit light on the emission region in a direction of the substrate. Further, the branch line can include a semiconductor layer, and the semiconductor layer of the branch line can overlap the emission region.

公开(公告)号：US12051374B2

公开(公告)日：2024-07-30

申请号：US17523518

申请日：2021-11-10

Applicant: LG DISPLAY CO., LTD.

Inventor： Seong Hwan Hwang ,  Byeong Uk Gang ,  Mun Chae Yoon

IPC: G09G3/3275 ,  G09G3/3258 ,  H10K59/124 ,  H10K59/131

CPC classification number: G09G3/3275 ,  G09G3/3258 ,  H10K59/124 ,  H10K59/131 ,  G09G2300/0876

Abstract: A display panel includes a first metal layer; a first insulating layer covering the first metal layer; a semiconductor layer disposed on the first insulating layer; a second insulating layer disposed on the first insulating layer to cover the semiconductor layer; and a second metal layer disposed on the second insulating layer, wherein the first metal layer comprises a bottom gate electrode of a driving element, wherein the second metal layer comprises a top gate electrode of the driving element connected to the bottom gate electrode through a first contact hole penetrating the second insulating layer and the first insulating layer, wherein the semiconductor layer comprises a semiconductor channel of the driving element overlapping with the top gate electrode and the bottom gate electrode.