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公开(公告)号：US12135850B2
公开(公告)日：2024-11-05
申请号：US18242353
申请日：2023-09-05
Applicant: LG Display Co., Ltd.
Inventor： Yangsik Lee , SangHyuck Bae
Abstract: A touch display device can include a substrate having a display area and a non-display area located outside of the display area; at least one subpixel disposed in the display area including a display anode electrode, an emission layer and a display cathode electrode; and a display driving transistor disposed in the display area and being configured to drive the display anode electrode. Also, the touch display device can include a touch electrode disposed in the display area; a touch driving transistor disposed in the display area and configured to drive the touch electrode, the touch driving transistor including a first active layer, a first source electrode, a first drain electrode and a first gate electrode; and a control transistor configured to control turn-on and turn-off operations of the touch driving transistor, and including a second active layer, a second source electrode, a second drain electrode and a second gate electrode.
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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.
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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.
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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.
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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
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.
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Patent Agency Ranking
公开(公告)号：US11157102B2
公开(公告)日：2021-10-26
申请号：US16037727
申请日：2018-07-17
Applicant: LG DISPLAY CO., LTD.
Inventor： JaeGyun Lee , Yangsik Lee
IPC: G06F3/041 , G06F3/044 , G06F3/047 , G09G3/3266 , G09G3/3291 , H01L27/32 , H01L51/52
Abstract: A touch display device can include a panel including a plurality of touch electrodes including a first touch electrode and a second touch electrode, the first touch electrode being adjacent to and electrically isolated from the second touch electrode; a touch sensing circuit configured to drive the panel to sense a touch or a touch position; and at least one external dummy metal disposed in a boundary region between the first touch electrode and the second touch electrode, in which the at least one external dummy metal is spaced apart from and electrically isolated from the first and second touch electrodes.
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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
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.
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公开(公告)号：US10996806B2
公开(公告)日：2021-05-04
申请号：US16395604
申请日：2019-04-26
Applicant: LG Display Co., Ltd.
Inventor： Ruda Rhe , JiHyun Jung , DeukSu Lee , SuChang An , JaeGyun Lee , Hyangmyoung Gwon , Yangsik Lee
Abstract: A touch display device includes: a display panel comprising: a plurality of subpixels; and a plurality of touch electrodes; and a touch sensing circuit configured to: supply a touch driving signal to the display panel; and detect a touch sensing signal to sense a touch, wherein the plurality of touch electrodes comprises: a plurality of X-touch electrode (XTE) lines, each comprising a plurality of XTEs, the plurality of XTE connecting lines being configured to connect adjacent XTEs to each other, among the plurality of XTEs, and a plurality of Y-touch electrode (YTE) lines intersecting the plurality of XTE lines, each YTE line comprising a plurality of YTEs, the plurality of YTE connecting lines being configured to connect adjacent YTEs to each other, and wherein at least two YTE connecting lines, among the plurality of YTE connecting lines, are between two neighboring subpixels of the plurality of subpixels.
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公开(公告)号：US10996785B2
公开(公告)日：2021-05-04
申请号：US16845979
申请日：2020-04-10
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.
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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.
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