公开(公告)号：US11726623B2

公开(公告)日：2023-08-15

申请号：US17538758

申请日：2021-11-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Yangsik Lee ,  HwiDeuk Lee ,  TaeWoo Kim ,  YongChan Park

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

CPC classification number: G06F3/0446 ,  G06F3/0412 ,  G06F3/0443 ,  H10K59/40 ,  G06F2203/04102

Abstract: A touch display device can include an active area in which a plurality of subpixels each including a light emitting element are disposed, the active area including a plurality of first areas and at least one folding area between the plurality of first areas; an encapsulation layer disposed on the active area; a plurality of touch electrodes disposed on the encapsulation layer; and a touch insulation layer between the plurality of touch electrode and the encapsulation layer, in which the touch insulation layer has a pattern structure in an area where the plurality of touch electrodes are not disposed in the at least one folding area.

公开(公告)号：US11307719B2

公开(公告)日：2022-04-19

申请号：US17098559

申请日：2020-11-16

Applicant: LG DISPLAY CO., LTD.

Inventor： Yangsik Lee ,  JiHyun Jung

IPC: G06F3/044 ,  H01L51/52 ,  H01L27/32 ,  G06F3/041 ,  H05K9/00

Abstract: A display device includes a light-emitting device; an encapsulation layer disposed on the light-emitting device; an insulating layer on the encapsulation layer; a plurality of first touch sensors on an upper surface of the insulating layer, and arranged in a first direction; a plurality of second touch sensors on the upper surface of the insulating layer, and arranged in a second direction intersecting the first direction; and a discharge pattern disposed between the encapsulation layer and the insulating layer, and overlapping an area between a first touch sensor of the plurality of first touch sensors and a second touch sensor of the plurality of second touch sensors. Further, a first end of the discharge pattern is connected to one of the first touch sensor and the second touch sensor through a contact hole of the insulating layer.

公开(公告)号：US11275459B2

公开(公告)日：2022-03-15

申请号：US16660356

申请日：2019-10-22

Applicant: LG Display Co., Ltd.

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

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  G02F1/1333 ,  H01B7/04

Abstract: The present embodiments generally relate to a display panel and a display device which may recognize touch. A display panel is provided in which a touch sensor and a touch line are disposed in an active area in which a part of an outer edge of the touch line is curved to correspond to a curved shape of the active area in the display panel so that the touch sensing is allowed in display panels having various shapes. Further, a touch display device is provided in which an open area is located between two adjacent touch lines disposed on the display panel so that touch sensing is allowed also in the display panel including an open area such as a hole or a notch.

公开(公告)号：US11194414B2

公开(公告)日：2021-12-07

申请号：US16922390

申请日：2020-07-07

Applicant: LG DISPLAY CO., LTD.

Inventor： HwiDeuk Lee ,  Yangsik Lee ,  YongChan Park ,  Sungsu Han

IPC: G09G5/00 ,  G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3266

Abstract: Embodiments of the present disclosure relate to a touch display device, and more particularly, to a touch display device which can have a small bezel size even when touch routing lines connecting a touch sensor to a touch sensing circuit are disposed in a non-display area and which can improve touch sensitivity by preventing or minimizing the formation of parasitic capacitance that can be caused by the touch routing lines.

公开(公告)号：US20210124448A1

公开(公告)日：2021-04-29

申请号：US16985013

申请日：2020-08-04

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk Lee ,  YongChan Park ,  Taeyun Kim ,  Yangsik Lee

IPC: G06F3/041 ,  G06F3/044

Abstract: The present disclosure relates to a touch display device, and more specifically, relates to a touch display device having a bottom emission structure. According to the touch display device, by disposing a touch electrode and a touch planarization layer between a substrate and a thin film transistor, a touch sensing function can be implemented without affecting the disposing of components for display driving. Further, by disposing a shielding electrode to which a constant voltage or a signal equal to a touch driving signal is applied between the touch electrode and a light emitting element, a noise of a touch sensing signal caused by display driving can be reduced and the performance of touch sensing performed together with the display driving can be improved.

公开(公告)号：US10795483B2

公开(公告)日：2020-10-06

申请号：US16505057

申请日：2019-07-08

Applicant: LG DISPLAY CO., LTD.

Inventor： KwangJo Hwang ,  HwiDeuk Lee ,  Yangsik Lee

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

Abstract: Discussed is a touch display device having a touch circuit that includes an operational amplifier having a first input terminal for inputting a reference voltage, a second input terminal connected to a sensing target touch electrode, and an output terminal for outputting an output voltage, and wherein a common voltage applied to a common electrode and a reference voltage inputted to the first input terminal of the operational amplifier are synchronized with each other.

公开(公告)号：US10649565B2

公开(公告)日：2020-05-12

申请号：US15807288

申请日：2017-11-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Yangsik Lee ,  JiHyun Jung ,  DeukSu Lee ,  JaeGyun Lee ,  Ruda Rhe ,  Jeonghoon Lee ,  Su Chang An

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G06F3/047 ,  H01L51/52

Abstract: A touch display device and a touch display panel are provided. The touch display panel includes a bend area adjacent to the periphery of the touch display panel, and touch lines disposed in the bend area have zigzag shapes that extend at angles with respect to a bend axis about which the bend area is bent. A first dielectric layer includes a compensation pattern that is located in the bend area and includes an opening that extends in a direction parallel to the bend axis. A second dielectric layer protrudes into the opening of the compensation pattern in a depth direction. During bending of the bend area, this configuration disperses force applied to portions of the touch lines and the dielectric layers in the bend area. This can consequently prevent both cracking due to bending and moisture permeation due to cracks.

公开(公告)号：US10572056B2

公开(公告)日：2020-02-25

申请号：US15391743

申请日：2016-12-27

Applicant: LG Display Co., Ltd.

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

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

Abstract: An organic light-emitting display panel having a built-in touchscreen 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. An 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：US10551979B2

公开(公告)日：2020-02-04

申请号：US15851220

申请日：2017-12-21

Applicant: LG Display Co., Ltd.

Inventor： Yangsik Lee ,  Jae Gyun Lee ,  Deuk Su Lee

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch display device and a touch display panel. Touch lines and contact pads are disposed between touch electrodes, arranged in touch electrode lines in the touch display panel, and a driver circuit. A total of the area of each touch line and the area of the corresponding contact pad has a predetermined value. Differences in parasitic capacitance among the touch lines according to the positions of the touch electrodes are compensated for. It is possible to prevent the accuracy of sensing from being lowered by differences in parasitic capacitance among the touch electrodes disposed in different positions.

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.