公开(公告)号：US11579728B2

公开(公告)日：2023-02-14

申请号：US17528940

申请日：2021-11-17

Applicant: LG Display Co., Ltd.

Inventor： Jinseong Kim ,  JuHan Kim ,  Haewon Lee

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

Abstract: A touch display device of the present disclosure may include a display panel on which a plurality of touch electrodes are electrically connected to a plurality of touch lines; a gate driving circuit for supplying scan signals to the display panel through a plurality of gate lines; a touch driving circuit for sensing a touch by detecting a touch signal from the plurality of touch electrodes and supplying a common voltage to the touch electrodes through the touch lines; a common voltage feedback line electrically connected to the plurality of touch lines or disposed to overlap with the plurality of gate lines in a non-display area of the display panel; and a common voltage compensation circuit for supplying a compensated common voltage based on a distortion in the common voltage.

公开(公告)号：US20220206614A1

公开(公告)日：2022-06-30

申请号：US17522761

申请日：2021-11-09

Applicant: LG Display Co., Ltd.

Inventor： Haewon Lee ,  Jinseong Kim ,  JuHan Kim

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

Abstract: A touch display device includes a first horizontal electrode including a plurality of first electrode parts spaced apart from one another in a horizontal direction and a plurality of first bridge parts connecting the plurality of first electrode parts; a second horizontal electrode including a plurality of second electrode parts spaced apart from the first horizontal electrode in a vertical direction and spaced apart from one another in the horizontal direction and a plurality of second bridge parts connecting the plurality of second electrode parts; a third horizontal electrode including a plurality of third electrode parts spaced apart from the second horizontal electrode in the vertical direction and spaced apart from one another in the horizontal direction and a plurality of third bridge parts connecting the plurality of third electrode parts; a first horizontal touch line electrically connected to the first horizontal electrode and disposed to extend in the vertical direction; a second horizontal touch line electrically connected to the second horizontal electrode and disposed to extend in the vertical direction; and a third horizontal touch line electrically connected to the third horizontal electrode and disposed to extend in the vertical direction; a plurality of first separation electrodes; a plurality of second separation electrodes; a first vertical touch line; and a second vertical touch line.

公开(公告)号：US11054926B2

公开(公告)日：2021-07-06

申请号：US16727341

申请日：2019-12-26

Applicant: LG Display Co., Ltd.

Inventor： Jinseong Kim ,  YongChan Park ,  Haewon Lee ,  JuHan Kim

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047

Abstract: In a touch display panel and a touch display device, a shielding pattern including the common electrode (COM) used as the touch electrode (TE) is disposed between a touch line (TL) and a data line (DL), and the touch line (TL) and the data line (DL) are arranged so as not to overlap each other in a boundary area between shielding patterns. The parasitic capacitance between the touch line (TL) and the data line (DL) can be reduced to improve the performance of touch sensing. In addition, the arrangement of the touch lines (TL) and data lines (DL) in the boundary area between shielding patterns is repeated at regular intervals to prevent an image abnormality.

公开(公告)号：US11934601B2

公开(公告)日：2024-03-19

申请号：US17971362

申请日：2022-10-21

Applicant: LG Display Co., Ltd.

Inventor： Haewon Lee ,  Jinseong Kim ,  JuHan Kim

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

CPC classification number: G06F3/0412 ,  G06F3/0446 ,  G09G3/2092 ,  G06F2203/04111 ,  G09G2310/0267 ,  G09G2310/0275

Abstract: A touch display device includes a first horizontal electrode including a plurality of first electrode parts spaced apart from one another in a horizontal direction and a plurality of first bridge parts connecting the plurality of first electrode parts; a second horizontal electrode including a plurality of second electrode parts spaced apart from the first horizontal electrode in a vertical direction and spaced apart from one another in the horizontal direction and a plurality of second bridge parts connecting the plurality of second electrode parts; a third horizontal electrode including a plurality of third electrode parts spaced apart from the second horizontal electrode in the vertical direction and spaced apart from one another in the horizontal direction and a plurality of third bridge parts connecting the plurality of third electrode parts; a first horizontal touch line electrically connected to the first horizontal electrode and disposed to extend in the vertical direction; a second horizontal touch line electrically connected to the second horizontal electrode and disposed to extend in the vertical direction; and a third horizontal touch line electrically connected to the third horizontal electrode and disposed to extend in the vertical direction; a plurality of first separation electrodes; a plurality of second separation electrodes; a first vertical touch line; and a second vertical touch line.

公开(公告)号：US11861091B2

公开(公告)日：2024-01-02

申请号：US17972448

申请日：2022-10-24

Applicant: LG Display Co., Ltd.

Inventor： CheolSe Kim ,  SungChul Kim ,  HoonBae Kim ,  SunYeop Kim ,  Jinseong Kim ,  JuHan Kim ,  Haewon Lee

IPC: G06F3/041 ,  G06F3/044 ,  H01L33/62 ,  H01L25/075

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/0446 ,  H01L25/0753 ,  H01L33/62

Abstract: A display device includes a substrate including a plurality of sub pixels; a first touch electrode on the substrate and overlapping at least one subpixel from the plurality of sub pixels; a second touch electrode on the substrate and spaced apart from the first touch electrode and overlapping the at least one sub pixel; an insulating layer covering the first touch electrode and the second touch electrode; a plurality of charging transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a plurality of sensing transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a planarization layer covering the plurality of charging transistors and the plurality of sensing transistors; and a light emitting diode on the planarization layer.

公开(公告)号：US11803267B2

公开(公告)日：2023-10-31

申请号：US17990241

申请日：2022-11-18

Applicant: LG Display Co., Ltd.

Inventor： Jinseong Kim ,  YongChan Park ,  Haewon Lee ,  JuHan Kim

IPC: G06V40/13 ,  G06F3/041 ,  G06F3/044 ,  G06F3/047

CPC classification number: G06F3/0412 ,  G06F3/047 ,  G06F3/0443 ,  G06F2203/04107

Abstract: In a touch display panel and a touch display device, a shielding pattern including the common electrode (COM) used as the touch electrode (TE) is disposed between a touch line (TL) and a data line (DL), and the touch line (TL) and the data line (DL) are arranged so as not to overlap each other in a boundary area between shielding patterns. The parasitic capacitance between the touch line (TL) and the data line (DL) can be reduced to improve the performance of touch sensing. In addition, the arrangement of the touch lines (TL) and data lines (DL) in the boundary area between shielding patterns is repeated at regular intervals to prevent an image abnormality.

公开(公告)号：US11714504B2

公开(公告)日：2023-08-01

申请号：US17561270

申请日：2021-12-23

Applicant: LG Display Co., Ltd.

Inventor： CheolSe Kim ,  JuHan Kim ,  Jinseong Kim ,  Haewon Lee

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F3/04164 ,  G06F3/04166 ,  G06F2203/04111

Abstract: A display device includes a first substrate, pixel substrates, first connection lines, second connection lines, and a touch electrode. The pixel substrates are disposed on the first substrate, and are spaced apart from each other along a first direction and along a second direction perpendicular to the first direction. The first connection lines connect pixel substrates disposed along the first direction. The second connection lines connect pixel substrates disposed along the second direction. The touch electrode is disposed between the pixel substrates in an area adjacent to areas in which the first connection lines and the second connection lines are disposed.

公开(公告)号：US11507211B2

公开(公告)日：2022-11-22

申请号：US17522761

申请日：2021-11-09

Applicant: LG Display Co., Ltd.

Inventor： Haewon Lee ,  Jinseong Kim ,  JuHan Kim

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

Abstract: A touch display device includes a first horizontal electrode including a plurality of first electrode parts spaced apart from one another in a horizontal direction and a plurality of first bridge parts connecting the plurality of first electrode parts; a second horizontal electrode including a plurality of second electrode parts spaced apart from the first horizontal electrode in a vertical direction and spaced apart from one another in the horizontal direction and a plurality of second bridge parts connecting the plurality of second electrode parts; a third horizontal electrode including a plurality of third electrode parts spaced apart from the second horizontal electrode in the vertical direction and spaced apart from one another in the horizontal direction and a plurality of third bridge parts connecting the plurality of third electrode parts; a first horizontal touch line electrically connected to the first horizontal electrode and disposed to extend in the vertical direction; a second horizontal touch line electrically connected to the second horizontal electrode and disposed to extend in the vertical direction; and a third horizontal touch line electrically connected to the third horizontal electrode and disposed to extend in the vertical direction; a plurality of first separation electrodes; a plurality of second separation electrodes; a first vertical touch line; and a second vertical touch line.

公开(公告)号：US20220206663A1

公开(公告)日：2022-06-30

申请号：US17528940

申请日：2021-11-17

Applicant: LG Display Co., Ltd.

Inventor： Jinseong Kim ,  JuHan Kim ,  Haewon Lee

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

Abstract: A touch display device of the present disclosure may include a display panel on which a plurality of touch electrodes are electrically connected to a plurality of touch lines; a gate driving circuit for supplying scan signals to the display panel through a plurality of gate lines; a touch driving circuit for sensing a touch by detecting a touch signal from the plurality of touch electrodes and supplying a common voltage to the touch electrodes through the touch lines; a common voltage feedback line electrically connected to the plurality of touch lines or disposed to overlap with the plurality of gate lines in a non-display area of the display panel; and a common voltage compensation circuit for supplying a compensated common voltage based on a distortion in the common voltage.