公开(公告)号：US10802634B2

公开(公告)日：2020-10-13

申请号：US16365403

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: G06F3/044 ,  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：US10761660B2

公开(公告)日：2020-09-01

申请号：US15994828

申请日：2018-05-31

Applicant: LG Display Co., Ltd.

Inventor： Yangsik Lee ,  JaeGyun Lee ,  Hyangmyoung Gwon ,  DeukSu Lee

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch display device includes a touch display panel on which a plurality of touch electrodes is arranged, at least one dam arranged in one direction in an outer edge area of the touch display panel and protruding from a bottom surface on which the dam is arranged, a plurality of touch lines arranged along a shape of the at least one dam in a direction intersecting the at least one dam, and a compensation pattern located in a lower boundary portion of the at least one dam between two adjacent touch lines among the plurality of touch lines.

公开(公告)号：US10739889B2

公开(公告)日：2020-08-11

申请号：US16162324

申请日：2018-10-16

Applicant: LG Display Co., Ltd.

Inventor： KwangJo Hwang ,  SuChang An ,  Yangsik Lee ,  DeukSu Lee

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  H01L27/32 ,  H01L51/52

Abstract: A touch display device and panel. In the display panel, an insulating film is provided on and in contact with an encapsulating layer, thereby reducing the entire thickness of the panel. The fabrication process of the touch display panel is simplified, thereby facilitating fabrication of the touch display device and panel.

公开(公告)号：US10599274B2

公开(公告)日：2020-03-24

申请号：US15993965

申请日：2018-05-31

Applicant: LG Display Co., Ltd.

Inventor： JaeGyun Lee ,  KwangJo Hwang ,  JiHyun Jung ,  DeukSu Lee ,  SuChang An ,  Ruda Rhe ,  Yangsik Lee

IPC: G06F3/044 ,  G06F3/041

Abstract: Disclosed is related to a touch display device and a touch panel and, more specifically, relate to a touch display device and a touch panel having a structure capable of reducing a deviation of the parasitic capacitance, which is generated in touch sensor metals, such as touch electrodes or touch lines. According to the aspects of the disclosure, it is possible to reduce a parasitic capacitance deviation, thereby improving touch sensitivity.

公开(公告)号：US10474286B2

公开(公告)日：2019-11-12

申请号：US15792409

申请日：2017-10-24

Applicant: LG Display Co., Ltd.

Inventor： SangHyuck Bae ,  BuYeol Lee ,  SeungRok Shin ,  CheolSe Kim ,  DeukSu Lee ,  Hyunwoo Jang ,  Jaeseung Kim ,  YoungGyu Kim ,  Hyunsuk Cho

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/044

Abstract: Embodiments described herein is able to provide a touch display device, an active pen, a touch system, a touch circuit, and a pen recognition method capable of efficiently providing a display function, a touch-sensing function, and a pen-touch-sensing function.

公开(公告)号：US10386949B2

公开(公告)日：2019-08-20

申请号：US15665255

申请日：2017-07-31

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：US09690437B2

公开(公告)日：2017-06-27

申请号：US14836762

申请日：2015-08-26

Applicant: LG Display Co., Ltd.

Inventor： SeungRok Shin ,  JiHyun Jung ,  DeukSu Lee ,  Taeyun Kim

IPC: G06F3/044 ,  G09G5/00

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G09G3/20 ,  G09G5/003 ,  G09G2300/0426 ,  G09G2354/00

Abstract: A display driver circuit comprises first circuitry to generate a touch drive signal, and second circuitry to provide the touch drive signal to touch sense electrodes of the display device and a touch data signal to data lines of the display device during a touch period and to provide display data signals to data lines of the display device during a display period. A touch gate signal is provided to gate lines of the display device during the touch period. The touch drive signal, the touch data signal, and the touch gate signal mimic a reference waveform, but amplitudes of one or more of the touch drive signal, the touch data signal, and the touch gate signal are overdriven by their respective overdrive amplitude with respect to the reference waveform during their respective overdrive duration.

公开(公告)号：US12204728B2

公开(公告)日：2025-01-21

申请号：US18447644

申请日：2023-08-10

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：US12182354B2

公开(公告)日：2024-12-31

申请号：US17864932

申请日：2022-07-14

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：US12144210B2

公开(公告)日：2024-11-12

申请号：US18320034

申请日：2023-05-18

Applicant: LG Display Co., Ltd.

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

IPC: H10K59/126 ,  G06F3/041 ,  H10K59/40 ,  H10K59/88

Abstract: The present disclosure provides a touch display device having a structure in which at least one touch electrode is disposed on an encapsulation layer, and including a noise shielding layer located between a layer in which the signal line under the encapsulation layer is disposed and a layer in which at least one light emitting element is disposed. The noise shielding layer can block coupling between the signal line and an electrode of the light emitting element, and reduce or prevent a fluctuation in the voltage of the electrode of the light emitting element from causing noise to occur in a touch sensing signal detected by the at least one touch electrode on the encapsulation layer.