公开(公告)号：US12272699B2

公开(公告)日：2025-04-08

申请号：US18395553

申请日：2023-12-23

Applicant: LG Display Co., Ltd.

Inventor： YounSub Kim ,  JongSik Shim ,  ByeongUk Gang ,  SeongHwan Hwang

IPC: H01L27/12 ,  G02F1/13 ,  H01L23/522 ,  H01L23/528

Abstract: A display device includes a data line transmitting a data voltage to each pixel, a power line supplying current to each pixel, wherein the data line and the power line are disposed on a substrate and extended along a first direction, a light shielding layer shielding a light emitting diode from light coming from outside, a gate line transmitting a gate voltage to each pixel and extended along a second direction intersecting the first direction, a gate insulating layer and a buffer layer disposed between the data line and the gate line, wherein the data line and the power line are disposed on a same layer as the light shielding layer.

公开(公告)号：US10985189B2

公开(公告)日：2021-04-20

申请号：US16165059

申请日：2018-10-19

Applicant: LG DISPLAY CO., LTD.

Inventor： YounSub Kim ,  JongSik Shim ,  ByeongUk Gang ,  SeongHwan Hwang

IPC: H01L27/12 ,  H01L23/522 ,  H01L23/528 ,  G02F1/13

Abstract: In the contact structure according to an exemplary aspect of the present disclosure and a display device including the same, the pixel may be designed regardless of the size of the contact hole by designing a size (or an area) of the contact hole to be larger than the contact area and applying different structures depending on the characteristics of the lower layer. Therefore, the size of the contact hole is increased so that the halftone mask may be easily applied and the number of masks may be advantageously reduced. Further, a degree of freedom of metal in the pixel design is increased so that the pixel may be designed in a high resolution model and the aperture ratio is increased without having the electrode margin. The contact structure comprises: a lower layer; at least a first insulating layer on the lower layer, the first insulating layer having a predetermined contact hole to expose a part of the lower layer; and an upper layer on the first insulating layer to be in contact with the lower layer through the contact hole, wherein the contact hole has a relatively larger area than a contact area where the upper layer and the lower layer are in contact with each other.

公开(公告)号：US11488986B2

公开(公告)日：2022-11-01

申请号：US17200531

申请日：2021-03-12

Applicant: LG Display Co., Ltd.

Inventor： YounSub Kim ,  JongSik Shim ,  ByeongUk Gang ,  SeongHwan Hwang

IPC: H01L27/12 ,  H01L23/522 ,  H01L23/528 ,  G02F1/13

Abstract: In the contact structure according to an exemplary aspect of the present disclosure and a display device including the same, the pixel may be designed regardless of the size of the contact hole by designing a size (or an area) of the contact hole to be larger than the contact area and applying different structures depending on the characteristics of the lower layer. Therefore, the size of the contact hole is increased so that the halftone mask may be easily applied and the number of masks may be advantageously reduced. Further, a degree of freedom of metal in the pixel design is increased so that the pixel may be designed in a high resolution model and the aperture ratio is increased without having the electrode margin. The contact structure comprises: a lower layer; at least a first insulating layer on the lower layer, the first insulating layer having a predetermined contact hole to expose a part of the lower layer; and an upper layer on the first insulating layer to be in contact with the lower layer through the contact hole, wherein the contact hole has a relatively larger area than a contact area where the upper layer and the lower layer are in contact with each other.

公开(公告)号：US20240006423A1

公开(公告)日：2024-01-04

申请号：US18213250

申请日：2023-06-22

Applicant: LG Display Co., Ltd.

Inventor： Seonghwan Hwang ,  ByeongUk Gang

IPC: H01L27/12

CPC classification number: H01L27/1255 ,  H01L27/124 ,  H01L27/1251

Abstract: Embodiments of the present disclosure relate to a transistor and a display device, and more particularly, to a display device including a substrate, a first capacitor electrode on the substrate, a first buffer layer on the first capacitor electrode, a second capacitor electrode located on the first buffer layer and overlapping at least a portion of the first capacitor electrode, a second buffer layer on the second capacitor electrode, an active layer on the second buffer layer, a gate insulating film on the active layer, and a source electrode located on the gate insulating film and overlapping at least a portion of the active layer, and the active layer overlaps at least a portion of an overlapping region between the first capacitor electrode and the second capacitor electrode to provide a sub-pixel having a high aperture ratio structure, thereby providing a high-resolution image.

公开(公告)号：US11901371B2

公开(公告)日：2024-02-13

申请号：US17952419

申请日：2022-09-26

Applicant: LG DISPLAY CO., LTD.

Inventor： YounSub Kim ,  JongSik Shim ,  ByeongUk Gang ,  SeongHwan Hwang

IPC: H01L27/12 ,  H01L23/522 ,  H01L23/528 ,  G02F1/13

CPC classification number: H01L27/124 ,  G02F1/13 ,  H01L23/5226 ,  H01L23/528

Abstract: In the contact structure according to an exemplary aspect of the present disclosure and a display device including the same, the pixel may be designed regardless of the size of the contact hole by designing a size (or an area) of the contact hole to be larger than the contact area and applying different structures depending on the characteristics of the lower layer. Therefore, the size of the contact hole is increased so that the halftone mask may be easily applied and the number of masks may be advantageously reduced. Further, a degree of freedom of metal in the pixel design is increased so that the pixel may be designed in a high resolution model and the aperture ratio is increased without having the electrode margin. The contact structure comprises: a lower layer; at least a first insulating layer on the lower layer, the first insulating layer having a predetermined contact hole to expose a part of the lower layer; and an upper layer on the first insulating layer to be in contact with the lower layer through the contact hole, wherein the contact hole has a relatively larger area than a contact area where the upper layer and the lower layer are in contact with each other.

公开(公告)号：US20230217720A1

公开(公告)日：2023-07-06

申请号：US17975509

申请日：2022-10-27

Applicant: LG Display Co., Ltd.

Inventor： Seonghwan Hwang ,  ByeongUk Gang ,  EunJi Park

IPC: H01L27/32

CPC classification number: H01L27/3246 ,  H01L27/322

Abstract: The present disclosure relates to an organic light emitting display device and an organic light emitting display panel including color filters disposed on a substrate and overlapping an emission area, a first insulating layer disposed on the color filters, a first active layer disposed on the first insulating layer, a gate electrode disposed on an upper surface of the first active layer, a second insulating layer disposed on the first active layer and the gate electrode and comprising a hole exposing a portion of the upper surface of the first active layer, a bank disposed on the second insulating layer and comprising an opening overlapping the hole of the second insulating layer, an organic layer disposed on the portion of the upper surface of the first active layer and the bank, and a cathode electrode disposed on the organic layer, thereby providing the organic light emitting display device and the organic light emitting display panel that are capable of simplifying the process.