公开(公告)号：US20200033990A1

公开(公告)日：2020-01-30

申请号：US16591155

申请日：2019-10-02

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：US20170090629A1

公开(公告)日：2017-03-30

申请号：US14983071

申请日：2015-12-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Hui KIM ,  Kiltae KIM ,  Sunyeop KIM ,  Hyunsuk CHO

IPC: G06F3/041 ,  G09G3/20

CPC classification number: G06F3/0412 ,  G06F3/0418 ,  G06F2203/04107 ,  G09G3/20 ,  G09G3/2092 ,  G09G2310/0275 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0209 ,  G09G2330/00

Abstract: A display device includes a display panel including an active area, in which pixels for displaying an input image and touch sensors for sensing a touch input are located, and a bezel area outside the active area and a power integrated circuit (IC) configured to produce DC (direct current) power and AC (alternating current) power and supply the DC power and the AC power to power lines disposed in the bezel area. The power lines include a first power line, to which the DC power is supplied, and a second power line, to which the AC power is supplied. The bezel area includes a first bezel area, in which the first power line is located, and a second bezel area, in which the second power line is located.

公开(公告)号：US20220206610A1

公开(公告)日：2022-06-30

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：US20180150178A1

公开(公告)日：2018-05-31

申请号：US15817253

申请日：2017-11-19

Applicant: LG Display Co., Ltd.

Inventor： Younggyu KIM ,  Hyunsuk CHO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044

Abstract: The present disclosure relates to a touch sensing system and a method of controlling the same. An exemplary aspect of the present disclosure provides A touch sensing system comprising: a display panel having pixels connected to data lines and gate lines and a plurality of touch sensors connected to the pixels; a display driving circuit that writes data of an input image to the pixels in a plurality of display periods divided from 1 frame; a touch sensing part that senses touch input by driving the touch sensors during touch sensing periods within the 1 frame which are allocated between the display periods; a plurality of multiplexers that connect one of sensor lines connected to the plurality of touch sensors to the touch sensing part; and a touch sensor controller that performs full sensing to detect a multiplexer with a sensed touch input by supplying a driving signal to the touch sensors within the touch sensing periods, performs pre-sensing to determine whether or not a touch input is sensed in multiplexers adjacent to the multiplexer with a sensed touch input, and performs local sensing to scan the touch sensors connected to the multiplexer with a sensed touch input based on the pre-sensing result and to calculate the coordinates of the touch input.

公开(公告)号：US20240160313A1

公开(公告)日：2024-05-16

申请号：US18500788

申请日：2023-11-02

Applicant: LG Display Co., Ltd.

Inventor： Sungsu HAN ,  SangHyuck BAE ,  HwiDeuk LEE ,  Hyunsuk CHO

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/32 ,  H01L25/075 ,  H01L25/16 ,  H01L33/40

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  G06F3/041662 ,  G06F3/0448 ,  G09G3/32 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/405 ,  G06F2203/04104 ,  G09G2310/0267 ,  G09G2310/08

Abstract: The present disclosure provides a touch sensor embedded light emitting diode display device and a touch display panel. The device includes a substrate, a light emitting diode (LED) disposed over the substrate. The LED includes a first electrode and a second electrode. The device includes a pixel electrode electrically connected to the first electrode and a common electrode electrically connected to the second electrode. The device includes a driving transistor disposed over the substrate. The transistor includes an active layer, a source electrode, a drain electrode, and a gate electrode. The device includes a relay electrode electrically connecting the source electrode or drain electrode to the pixel electrode. The device includes a first touch sensor electrode disposed spaced apart from the light emitting diode and including the same conductive material as the pixel electrode.

公开(公告)号：US20220206651A1

公开(公告)日：2022-06-30

申请号：US17494596

申请日：2021-10-05

Applicant: LG Display Co., Ltd.

Inventor： YongChan PARK ,  HwiDeuk LEE ,  Yangsik LEE ,  Hyunsuk CHO

IPC: G06F3/041

Abstract: Embodiments of the present disclosure are related to a touch display device, as a plurality of first line parts disposed on a first sensor layer and a plurality of second line parts disposed on a second sensor layer are alternated to make a touch line, at least a portion of different touch lines can be disposed to be overlapped each other, thus a plurality of touch lines can be disposed while reducing or minimizing a reduction of an aperture ratio or a transmittance of a subpixel due to an arrangement of the touch line. Accordingly, a touch sensitivity can be enhanced by further disposing touch electrodes, or the touch display device having a large area with many channels can be implemented easily by further disposing touch lines.

公开(公告)号：US20210181893A1

公开(公告)日：2021-06-17

申请号：US17187146

申请日：2021-02-26

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

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：US20210124473A1

公开(公告)日：2021-04-29

申请号：US17078544

申请日：2020-10-23

Applicant: LG Display Co., Ltd.

Inventor： YoungGyu KIM ,  Hyunsuk CHO ,  NamYong GONG ,  HyungUk JANG ,  DoYoung JUNG ,  Jongsung KIM

IPC: G06F3/041

Abstract: Embodiments of the present disclosure relate to a touch circuit, a touch display device, and a touch driving method, and more specifically, to a touch circuit, a touch display device, and a touch driving method for simply configuring a system for transmitting signals between a touch display device and a stylus by uniformly arranging intervals between touch driving periods in a touch frame.

公开(公告)号：US20210124449A1

公开(公告)日：2021-04-29

申请号：US17022768

申请日：2020-09-16

Applicant: LG Display Co., Ltd.

Inventor： HyungUk JANG ,  NamYong GONG ,  SangHyuck BAE ,  YoungGyu KIM ,  DoYoung JUNG ,  Hyunsuk CHO ,  Jongsung KIM

IPC: G06F3/041 ,  G06F3/044

Abstract: Provided are a touch display device and a touch circuit that can effectively simultaneously sense a plurality of pens in a predetermined touch frame time (a driving time) by simultaneously performing sensing of pen information and sensing of a pen position using pen data.

公开(公告)号：US20180113559A1

公开(公告)日：2018-04-26

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

CPC classification number: G06F3/0416 ,  G06F3/03545 ,  G06F3/0383 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04104 ,  G06F2203/04111 ,  G06F2203/04112

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.