公开(公告)号：US12223128B2

公开(公告)日：2025-02-11

申请号：US18066218

申请日：2022-12-14

Applicant: LG Display Co., Ltd.

Inventor： JuHong Kim ,  HwiDeuk Hwan Lee

IPC: G06F3/041

Abstract: A transparent touch display device according to embodiments of the disclosure may comprise a substrate including a pixel area, a first transmissive area positioned on a first side of the pixel area, and a second transmissive area positioned on a second side of the pixel area, a driving transistor disposed in the pixel area, an anode electrode disposed in the pixel area, positioned on the driving transistor, and electrically connected with a source electrode or drain electrode of the driving transistor, a light emitting layer positioned on the anode electrode, a display cathode electrode positioned on the light emitting layer, a first touch cathode electrode disposed in the first transmissive area and positioned on a first side of the display cathode electrode, a second touch cathode electrode disposed in the second transmissive area and positioned on a second side of the display cathode electrode, an encapsulation layer disposed on the display cathode electrode, the first touch cathode electrode, and the second touch cathode electrode, and a first touch line overlapping the display cathode electrode.

公开(公告)号：US20240160323A1

公开(公告)日：2024-05-16

申请号：US18499788

申请日：2023-11-01

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk Lee ,  JuHong Kim

IPC: G06F3/044 ,  G09G3/3233 ,  H10K59/40

CPC classification number: G06F3/044 ,  G09G3/3233 ,  H10K59/40 ,  G06F2203/04111 ,  G09G2300/0413 ,  G09G2300/0842 ,  G09G2354/00

Abstract: The present disclosure relates to a touch display device including a substrate, a pixel area in which at least one subpixel is disposed, a first touch sensor area located on a first side of the pixel area, a second touch sensor area located on a second opposing side of the pixel area, at least one pixel electrode disposed in the pixel area, a first electrode disposed in the first touch sensor area, and a second electrode disposed in the second touch sensor area. As the first electrode and the second electrode include a metal included in the at least one pixel electrode, the touch display device can provide an effect of reducing the thickness of a display panel even though a touch sensor is embedded in the display panel.

公开(公告)号：US12236047B2

公开(公告)日：2025-02-25

申请号：US18499788

申请日：2023-11-01

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk Lee ,  JuHong Kim

IPC: G06F3/044 ,  G09G3/3233 ,  H10K59/40

Abstract: The present disclosure relates to a touch display device including a substrate, a pixel area in which at least one subpixel is disposed, a first touch sensor area located on a first side of the pixel area, a second touch sensor area located on a second opposing side of the pixel area, at least one pixel electrode disposed in the pixel area, a first electrode disposed in the first touch sensor area, and a second electrode disposed in the second touch sensor area. As the first electrode and the second electrode include a metal included in the at least one pixel electrode, the touch display device can provide an effect of reducing the thickness of a display panel even though a touch sensor is embedded in the display panel.

公开(公告)号：US11740720B2

公开(公告)日：2023-08-29

申请号：US17894851

申请日：2022-08-24

Applicant: LG Display Co., Ltd.

Inventor： YongChan Park ,  JuHong Kim

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/04164 ,  G06F3/0443 ,  G06F2203/04107

Abstract: A touch display device includes a display cathode electrode, a first touch cathode electrode adjacent to and disposed in the same layer as the display cathode electrode, a first touch line coupled with a touch driving circuit, a first touch bridge coupled with the first touch line, a second touch cathode electrode adjacent to and disposed in the same layer as the display cathode electrode, a second touch line coupled with the touch driving circuit, and a second touch bridge coupled with the second touch line. The first touch cathode electrode is electrically separated from and the second touch cathode electrode is electrically shorted with the display cathode electrode. The first touch bridge is coupled with the first touch cathode electrode. The second touch bridge is separated from the second touch cathode electrode, and the second touch line and the second touch cathode electrode are separated from each other.

公开(公告)号：US11487376B2

公开(公告)日：2022-11-01

申请号：US17459575

申请日：2021-08-27

Applicant: LG DISPLAY CO., LTD.

Inventor： JuHong Kim ,  HwiDeuk Lee ,  Hyunsuk Cho

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch display device includes a shield electrode disposed between a touch electrode and a display electrode, by not disposing the touch electrode and the shield electrode on a part of an area overlapping with a data line, thus direct and indirect coupling by the data line can be reduced and a crosstalk by a coupling between a touch signal and a display signal can be reduced. Furthermore, in the case that the shield electrode is disposed on a layer where a connecting pattern connecting between the touch electrode and the touch line is disposed, by maintaining an arrangement of the shield electrode on some area where the data line is overlapped and the touch electrode isn't disposed, thus an effect of a coupling reduction can be provided while maintaining a noise blocking performance of the shield electrode stably.

公开(公告)号：US11995257B2

公开(公告)日：2024-05-28

申请号：US18068880

申请日：2022-12-20

Applicant: LG Display Co., Ltd.

Inventor： JuHong Kim ,  HwiDeuk Lee

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/044

Abstract: The present disclosure relates to a transparent touch display device including: a substrate including a pixel area, a first transmission area located on a first side of the pixel area, and a second transmission area located on a second side of the pixel area; a display cathode electrode to which a base voltage for display driving is applied; a first touch cathode electrode located on a first side of the display cathode electrode and including a same material as the display cathode electrode; a second touch cathode electrode located on a second side of the display cathode electrode and including the same material as the display cathode electrode; a first touch bridge that runs across the pixel area and electrically connects the first touch cathode electrode and the second touch cathode electrode; a first touch line intersecting the first touch bridge and electrically connected to at least one of the first touch cathode electrode and the second touch cathode electrode; and a first upper touch shield disposed over the first touch line and overlapped with at least a portion of the first touch line, wherein the first upper touch shield has an equipotential with the first touch line.

公开(公告)号：US20240160318A1

公开(公告)日：2024-05-16

申请号：US18505415

申请日：2023-11-09

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk Lee ,  Beom-Jin Kim ,  HyeongWon Kang ,  JuHong Kim

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20 ,  G09G3/3258

CPC classification number: G06F3/04184 ,  G06F3/0412 ,  G06F3/0446 ,  G09G3/2074 ,  G09G3/3258 ,  G06F2203/04111 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2354/00

Abstract: Embodiments of the disclosure relate to a touch display device and a touch sensing method and may specifically include a first pixel area, a first touch sensor area positioned on one side of the first pixel area, a first subpixel disposed in the first pixel area and including a light emitting element and a scanning transistor, a first display driving line connected to the first subpixel, a first touch sensor disposed in the first touch sensor area, a first sensing line disposed adjacent to the first touch sensor, a first touch line electrically connected to the first touch sensor, and a first sensing transistor controlling an electrical connection between the first sensing line and the first touch sensor, thereby removing a ghost touch that may occur due to temperature influence.

公开(公告)号：US11907469B2

公开(公告)日：2024-02-20

申请号：US17963869

申请日：2022-10-11

Applicant: LG Display Co., Ltd.

Inventor： Sungsu Han ,  HwiDeuk Lee ,  Yangsik Lee ,  JuHong Kim

IPC: G06F3/041 ,  G06F3/044 ,  H10K59/40 ,  H10K59/124

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  G06F3/0443 ,  H10K59/124 ,  H10K59/40 ,  G06F2203/04111

Abstract: A display device can include a substrate in which a plurality of pixels each including an emissive area and a transmissive area is disposed. The display device can further include a touch electrode in the transmissive area, and a plurality of first touch connection lines extended in a first direction and electrically connecting the touch electrodes respectively disposed in the pixels adjacent to each other. Further, the display device can include a reference line on the substrate in the emissive area and extended in a second direction different from the first direction, and a plurality of touch lines extended in the second direction in the emissive area and disposed on a plurality of insulating layers covering the reference line. Furthermore, the display device can include a planarization layer covering the plurality of touch lines, and a plurality of light emitting diodes on the planarization layer in the emissive area.