公开(公告)号：US12069916B2

公开(公告)日：2024-08-20

申请号：US17957771

申请日：2022-09-30

Applicant: LG Display Co., Ltd.

Inventor： Yangsik Lee ,  HwiDeuk Lee

IPC: G06F3/044 ,  G06F3/041 ,  H10K59/131 ,  H10K59/40

CPC classification number: H10K59/131 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/0446 ,  G06F2203/04107 ,  H10K59/40

Abstract: A touch display device can include a touch electrode implemented using a material and disposed on a transmissive area of a subpixel. The touch electrode can be disposed easily in a display panel which a transmittance is high. Furthermore, a short circuit prevention electrode can be disposed between a second electrode of a light-emitting element and the touch electrode to reduce a defect occurrence of the touch electrode in a process, and various types of touch sensing function can be provided or a performance of a touch sensing can be improved by using the short circuit prevention electrode as an electrode performing a certain function.

公开(公告)号：US20240160323A1

公开(公告)日：2024-05-16

申请号：US18499788

申请日：2023-11-01

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk Lee ,  JuHong Kim

IPC: G06F3/044 ,  G09G3/3233 ,  H10K59/40

CPC classification number: G06F3/044 ,  G09G3/3233 ,  H10K59/40 ,  G06F2203/04111 ,  G09G2300/0413 ,  G09G2300/0842 ,  G09G2354/00

Abstract: The present disclosure relates to a touch display device including a substrate, a pixel area in which at least one subpixel is disposed, a first touch sensor area located on a first side of the pixel area, a second touch sensor area located on a second opposing side of the pixel area, at least one pixel electrode disposed in the pixel area, a first electrode disposed in the first touch sensor area, and a second electrode disposed in the second touch sensor area. As the first electrode and the second electrode include a metal included in the at least one pixel electrode, the touch display device can provide an effect of reducing the thickness of a display panel even though a touch sensor is embedded in the display panel.

公开(公告)号：US20240090283A1

公开(公告)日：2024-03-14

申请号：US18239638

申请日：2023-08-29

Applicant: LG Display Co., Ltd.

Inventor： Yangsik Lee ,  HwiDeuk Lee ,  YoungJoon Lee

IPC: H10K59/131 ,  G06F3/041 ,  G06F3/044 ,  H10K59/40

CPC classification number: H10K59/131 ,  G06F3/0412 ,  G06F3/04184 ,  G06F3/044 ,  H10K59/40 ,  G06F2203/04112 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842

Abstract: A touch display device and a display panel are disclosed. Specifically, there may be provided a touch display device comprising a display area in which a plurality of subpixels are arranged in a first direction and a second direction, a reference voltage line extending along the first direction in a first line area between the plurality of subpixels, a data line extending along the first direction in a second line area between the plurality of subpixels, a driving voltage line extending along the first direction in a third line area between the plurality of subpixels, a touch electrode pattern disposed to overlap the reference voltage line or the driving voltage line, and a touch driving circuit applying a touch driving signal to the touch electrode pattern through a touch line and detecting touch according to a change in capacitance.

公开(公告)号：US11314349B2

公开(公告)日：2022-04-26

申请号：US16922409

申请日：2020-07-07

Applicant: LG DISPLAY CO., LTD.

Inventor： HwiDeuk Lee ,  Yangsik Lee

IPC: 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：US20220083175A1

公开(公告)日：2022-03-17

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 ,  H01L27/32

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：US11106299B2

公开(公告)日：2021-08-31

申请号：US16512818

申请日：2019-07-16

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk Lee ,  Yangsik Lee

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch display device includes a substrate defining an active area and a non-active area around the active area; a touch pad in the non-active area; a plurality of signal lines; a signal line insulation layer; first electrodes; at least one noise reduction electrode on the signal line insulation layer and in a portion other than the area corresponding to the first electrodes; a second electrode over the plurality of first electrodes and the at least one noise reduction electrode; an encapsulation layer on the second electrode; touch lines on the encapsulation layer and connected to the touch pad; and touch electrodes on the encapsulation layer and electrically connected to at least one touch line. The encapsulation layer has a sloped surface between the touch pad and the touch electrodes, and the touch lines are arranged on the sloped surface of the encapsulation layer having a corresponding slope.

公开(公告)号：US10976865B2

公开(公告)日：2021-04-13

申请号：US16517163

申请日：2019-07-19

Applicant: LG DISPLAY CO., LTD.

Inventor： HwiDeuk Lee ,  Sangkyu Kim ,  Taeyun Kim ,  Yangsik Lee ,  Jaeseung Kim

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

Abstract: Discussed are a touch display panel, a touch display device, and a driving method thereof, wherein a constant voltage is applied to a cathode electrode during a period for sensing a finger touch or a pen touch, thereby performing touch sensing while performing display driving. In addition, a signal having the same phase and potential as the signal applied to the touch electrode is applied to the cathode electrode during a period for transmitting an uplink signal to the pen, thereby eliminating parasitic capacitance between the touch electrode and the cathode electrode, preventing transmission delay of the uplink signal, improving the recognition rate of the uplink signal, and enhancing the performance of pen-touch sensing.

公开(公告)号：US10950193B2

公开(公告)日：2021-03-16

申请号：US16510257

申请日：2019-07-12

Applicant: LG Display Co., Ltd.

Inventor： Jaeseung Kim ,  HwiDeuk Lee ,  Yangsik Lee

IPC: G09G3/36 ,  G02F1/1345 ,  G09G3/3208 ,  H01L29/786 ,  G06F3/041

Abstract: A display apparatus includes a substrate including an active area where a plurality of pixels is connected to gate lines and data lines intersecting with each other, and a non-active area where a plurality of lines for transmitting signals for driving the plurality of pixels is disposed; a touch signal generation circuit disposed on the non-active area, receiving a touch clock signal and outputting a touch driving signal; and a touch sensor part receiving the touch driving signal and generating touch information on a touch point at the active area.

公开(公告)号：US10915210B2

公开(公告)日：2021-02-09

申请号：US16525488

申请日：2019-07-29

Applicant: LG Display Co., Ltd.

Inventor： HwiDeuk Lee ,  Yangsik Lee ,  Jaeseung Kim

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

Abstract: Example embodiments of the present disclosure relate to a touch display device. In one example, a touch display device includes a substrate including an active area in which multiple subpixels are arranged and a nonactive area positioned outside the active area; wherein each of the multiple subpixels includes a first electrode, an organic light emitting layer and a second electrode on the organic light emitting layer; an encapsulation layer arranged on the second electrode; a plurality of touch electrodes and a plurality of touch routing wires arranged on the encapsulation layer; a touch sensing circuit configured to drive the plurality of touch electrodes through the plurality of touch routing wires; multiple connection patterns arranged on the encapsulation layer in the active area so as to electrically connect at least a portion of the plurality of touch electrodes to each other; multiple first compensation patterns arranged in the nonactive area and electrically connected to the plurality of touch routing wires; and multiple second compensation patterns arranged on the encapsulation layer corresponding to the multiple first compensation patterns.

公开(公告)号：US11500501B2

公开(公告)日：2022-11-15

申请号：US17306447

申请日：2021-05-03

Applicant: LG Display Co., Ltd.

Inventor： Yangsik Lee ,  HwiDeuk Lee ,  Sungsu Han

IPC: G06F3/044 ,  G06F3/041

Abstract: Embodiments of the present disclosure are related to a touch display device, as a portion of a touch routing line is disposed on an area surrounded by a touch electrode line on an active area and is electrically connected to the touch electrode line, the touch routing line can be disposed on the active area while reducing an influence of a noise. Thus, as an additional arrangement of the touch routing line and a free adjustment of a connecting point of the touch routing line become possible without an increase of an area for arranging the touch routing line, a load by the touch routing line and a difference of a sensitivity according to positions of the touch electrode line are reduced and a performance of a touch sensing can be improved.