公开(公告)号：US10540033B2

公开(公告)日：2020-01-21

申请号：US16460879

申请日：2019-07-02

Applicant: LG Display Co., Ltd.

Inventor： SuChang An ,  JiHyun Jung ,  DeukSu Lee ,  JaeGyun Lee ,  RuDa Lee ,  HyangMyoung Gwon ,  YangSik Lee

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32

Abstract: A display panel and a touch display device are disclosed herein. In one embodiment, the display panel includes data lines, gate lines, subpixels defined by the data lines and the gate lines, and touch sensors, and a touch sensing circuit sensing a touch or a touched position using the touch sensors. Each of the touch sensors is located on an encapsulation layer and comprises two or more sub-electrodes located on different layers, where the two or more sub-electrodes are electrically connected to each other.

公开(公告)号：US20190302944A1

公开(公告)日：2019-10-03

申请号：US16365428

申请日：2019-03-26

Applicant: LG Display Co., Ltd.

Inventor： Ruda RHE ,  JiHyun Jung ,  DeukSu Lee ,  SuChang An ,  JaeGyun Lee ,  Hyangmyoung Gwon ,  Yangsik Lee

IPC: G06F3/041 ,  G06F3/047 ,  G06F3/0488

Abstract: The present disclosure relates to a touch display device and a touch sensing method and, more specifically, to a touch display device and a touch sensing method that provide a single-layered touch sensor structure by a touch electrode connecting line that electrically connects touch electrodes arranged in one direction and is arranged to bypass and surround touch electrodes arranged in another direction, thereby enabling a simple manufacturing process, a high manufacturing yield, and a low manufacturing cost.

公开(公告)号：US10386956B2

公开(公告)日：2019-08-20

申请号：US15391625

申请日：2016-12-27

Applicant: LG Display Co., Ltd.

Inventor： Hyangmyoung Gwon ,  SeungHee Nam ,  Kwon-Shik Park ,  DeukSu Lee ,  BuYeol Lee ,  SuChang An

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  H01L51/52

Abstract: An organic light-emitting display panel having a built-in touchscreen and an organic light-emitting display device having a built-in touchscreen is disclosed. The organic light-emitting display panel includes a plurality of subpixels defined therein by a plurality of data lines and a plurality of gate lines, an encapsulation layer having an encapsulating function, and a color filter layer located on the encapsulation layer. The organic light-emitting display device includes the organic light-emitting display panel. Both the organic light-emitting display panel having a built-in touchscreen and the organic light-emitting display device having a built-in touchscreen is provided with a structure enabling a touchscreen disposed therewithin.

公开(公告)号：US10324575B2

公开(公告)日：2019-06-18

申请号：US15822464

申请日：2017-11-27

Applicant: LG Display Co., Ltd.

Inventor： KwangJo Hwang ,  DeukSu Lee ,  JaeGyun Lee ,  Yangsik Lee

IPC: G06F3/044

Abstract: A touch display device and a touchscreen panel. Even in the case in which touch electrodes have different sizes or shapes or a located in different positions, a difference in capacitance is not formed among the touch electrodes. High touch sensitivity can be obtained. The touch display device comprises a plurality of touch electrodes, wherein a first touch electrode of the plurality of touch electrodes occupies a first area and comprises first mesh-shaped electrode metal. The touch display device comprises first dummy metal in a same layer as the first mesh-shaped electrode metal and in the first area occupied by the first touch electrode, the first dummy metal being electrically disconnected from the first mesh-shaped electrode metal.

公开(公告)号：US09293078B2

公开(公告)日：2016-03-22

申请号：US14863217

申请日：2015-09-23

Applicant: LG Display Co., Ltd.

Inventor： SeungRok Shin ,  DeukSu Lee

IPC: G06F3/045 ,  G09G3/20 ,  G06F3/041 ,  G06F3/044

CPC classification number: G09G3/2096 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G09G2300/043 ,  G09G2310/0208 ,  G09G2310/0213 ,  G09G2310/08 ,  G09G2330/02

Abstract: A display device integrated with a touch screen panel, and a method of driving the same, can prevent parasitic capacitance that would otherwise increase the load during a touch operation, lower the accuracy of touch sensing, or make touch sensing impossible. The display device includes data lines, gate lines, and a plurality of electrodes spaced apart from each other. A common voltage is applied to the electrodes in a display driving mode and a touch drive signal is applied to one or more of the electrodes in a touch driving mode. A data voltage is applied to the data lines in the display driving mode. A scan signal is supplied sequentially to the gate lines in the display driving mode and the touch drive signal or a signal corresponding to the touch drive signal is applied to one or more of the gate lines in the touch driving mode.

公开(公告)号：US20250093995A1

公开(公告)日：2025-03-20

申请号：US18952957

申请日：2024-11-19

Applicant: LG Display Co., Ltd.

Inventor： JaeGyun Lee ,  JiHyun Jung ,  DeukSu Lee ,  SuChang An ,  Ruda Rhe ,  Hyangmyoung Gwon

IPC: G06F3/041 ,  G06F3/044

Abstract: The disclosure is related to a touch display device including a display panel. By dividing an active area of the display panel into a plurality of sub-areas, and driving a touch electrode disposed on each of the plurality of sub-areas separately, a load of the touch electrodes is reduced depending on a size of the display panel and a performance of a touch sensing can be improved.

公开(公告)号：US12254152B2

公开(公告)日：2025-03-18

申请号：US18358869

申请日：2023-07-25

Applicant: LG Display Co., Ltd.

Inventor： Ruda Rhe ,  DeukSu Lee ,  JaeGyun Lee

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  H01L51/00 ,  G09G3/3233

Abstract: Embodiments of the disclosure may provide a touch display device in which in a structure in which touch electrodes are separately disposed in a first sub area and a second sub area of an active area, X-touch electrodes disposed in the first sub area and the second sub area are electrically connected with each other, and Y-touch electrodes are electrically separated from each other. It is possible to reduce the load by a structure in which touch electrodes are divided for each sub area and to reduce the number of channels by driving the X-touch electrodes in the first sub area and second sub area by the same number of channels.

公开(公告)号：US12056301B2

公开(公告)日：2024-08-06

申请号：US17875065

申请日：2022-07-27

Applicant: LG Display Co., Ltd.

Inventor： Ruda Rhe ,  JiHyun Jung ,  DeukSu Lee ,  SuChang An ,  JaeGyun Lee ,  Hyangmyoung Gwon

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/15 ,  H01L33/54

CPC classification number: G06F3/0412 ,  G06F3/0446 ,  H01L27/156 ,  H01L33/54

Abstract: Embodiments of the present disclosure are related to a touch display device that includes a touch sensor. The touch sensor has a touch sensor structure that prevents or at least reduces a defect of a touch routing line that electrically connects a touch electrode and a touch pad. The defect is prevented or at least reduced due to a reduction of a height difference between a dam disposed between an active area and a pad area and a peripheral area thereof.

公开(公告)号：US11983361B2

公开(公告)日：2024-05-14

申请号：US17884287

申请日：2022-08-09

Applicant: LG Display Co., Ltd.

Inventor： SeungRok Shin ,  Jeonghoon Lee ,  DeukSu Lee ,  Yoonnara Jang

IPC: G06F3/041

CPC classification number: G06F3/04166 ,  G06F3/04184

Abstract: Embodiments of the present disclosure are related to a touch display device, in a structure that a touch electrode line is disposed to be divided on a plurality of sub-areas included in an active area, by synchronizing a driving of the touch electrode line adjacent to a boundary of the sub-area, or by performing a differential sensing processing by sharing a touch sensing signal detected from the touch electrode line, thus an accuracy of a touch sensing for an area adjacent to the boundary of the sub-area can be improved.

公开(公告)号：US11816282B2

公开(公告)日：2023-11-14

申请号：US17866058

申请日：2022-07-15

Applicant: LG DISPLAY CO., LTD.

Inventor： JaeGyun Lee ,  Ruda Rhe ,  Hyangmyoung Gwon ,  JiHyun Jung ,  DeukSu Lee ,  SuChang An

IPC: G06F3/041 ,  G06F3/044

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

Abstract: A touch display device is disclosed. By arranging a part of a touch routing line for a driving of a touch electrode on an active area and electrically connecting the touch routing line to an auxiliary routing pattern that overlaps the touch routing line, an area where the touch routing line is disposed and a load of the touch routing line can be reduced.