Display device

Abstract

The present disclosure relates to a display device, and more particularly, to a display device capable of providing a touch sensor structure that resists noise from display driving electrodes / wires such as data lines by designing the display device so that touch sensing lines do not overlap with data lines in a region where a cathode is not formed.

Description

[0001] This application is a divisional application of the invention patent application with the application date of October 26, 2018, the application number of 201811254869.3, and the invention name of "Touch Display Device and Display Panel". Technical Field

[0002] The present disclosure relates to a touch display device and a display panel. Background Art

[0003] As society develops into an information society, the demand for various forms of display devices for displaying images has increased. In recent years, various display devices such as liquid crystal display devices, plasma display devices, and organic light emitting diode display devices have been utilized.

[0004] These display devices include touch display devices capable of providing a touch-based input system, and the touch-based input system enables a user to easily, intuitively, and conveniently input information or commands, thereby avoiding traditional input systems such as buttons, keyboards, and mice.

[0005] In order for such a touch display device to provide such a touch-based input system, it is necessary to determine whether there is a user touch and correctly detect the touch coordinates.

[0006] To this end, among various types of touch sensing systems, a capacitance-based touch sensing system is widely used, which detects the presence of a touch, touch coordinates, etc. based on changes in capacitance formed on a plurality of touch electrodes.

[0007] In a conventional touch display device, when a touch panel is included in a display panel, noise of data lines for display driving flows into touch electrodes or touch lines. Therefore, there is a problem that the signal-to-noise ratio of a touch sensing signal decreases and touch sensitivity decreases. Summary of the Invention

[0008] In view of the above, an aspect of an embodiment of the present disclosure is to provide a display device having a touch sensor structure that can resist noise of display driving electrodes / lines such as data lines.

[0009] Another aspect of an embodiment of the present disclosure is to provide a display device having a structure that enables a sensing touch line to be unaffected by noise even when noise of display driving electrodes / lines such as data lines occurs.

[0010] According to one aspect, embodiments of the present disclosure may provide a display device including: a display area and a non-display area; a plurality of data lines arranged in the display area; a plurality of data link lines connected to the plurality of data lines; an encapsulation layer having at least one organic layer and at least one inorganic layer; a touch sensor having a plurality of driving touch electrodes and a plurality of sensing touch electrodes arranged on the encapsulation layer; a plurality of driving touch lines connected to the plurality of driving touch electrodes; and a plurality of sensing touch lines connected to the plurality of sensing touch electrodes, wherein, in the non-display area, at least one of the plurality of data link lines overlaps at least one of the plurality of driving touch lines.

[0011] In the display device, the plurality of driving touch lines or the plurality of sensing touch lines may be arranged on a side surface of the encapsulation layer.

[0012] The display device may further include a touch buffer layer arranged on the encapsulation layer.

[0013] In the display device, the touch buffer layer may be arranged between the encapsulation layer and the plurality of driving touch lines or the plurality of sensing touch lines.

[0014] The display device may further include a touch insulating layer arranged on the touch buffer layer.

[0015] The display device may further include a bridge electrode arranged on the touch buffer layer.

[0016] In the display device, the touch insulating layer may be arranged between the bridge electrode and the touch sensor.

[0017] In the display device, the bridge electrode or the touch sensor may be in the form of a grid including a plurality of open areas.

[0018] The display device may further include an anode, a cathode, and a light-emitting layer arranged between the anode and the cathode.

[0019] In the display device, in the non-display area, the plurality of driving touch lines may overlap a first portion of the cathode, and in the non-display area, the plurality of sensing touch lines may overlap a second portion of the cathode.

[0020] The display device may further include a bank located on the anode, the bank defining a plurality of pixel regions.

[0021] In the display device, each of the plurality of open areas may overlap a corresponding one of the plurality of pixel regions.

[0022] In the display device, in the non-display area, the plurality of sensing touch lines may not overlap any of the plurality of data link lines.

[0023] In the display device, in the display area, a plurality of driving touch lines may be arranged parallel to the plurality of data lines, and a plurality of sensing touch lines may be arranged parallel to the plurality of gate lines.

[0024] In the display device, in the non-display area, a plurality of data pads may be arranged to electrically connect the plurality of data link lines, a plurality of driving touch pads may be arranged to electrically connect the plurality of driving touch lines, a plurality of sensing touch pads may be arranged to electrically connect the plurality of sensing touch lines, and the plurality of driving touch pads may be arranged closer to the plurality of data pads than the plurality of sensing touch pads are arranged relative to the plurality of data pads.

[0025] The display device may further include a thin film transistor having a gate, a semiconductor layer, a source, and a drain.

[0026] In the display device, the plurality of driving touch pads or sensing touch pads may include a lower touch pad electrode and an upper touch pad electrode.

[0027] In the display device, the lower touch pad electrode may be formed in the same layer as the source or the drain.

[0028] In the display device, the upper touch pad electrode may be formed in the same layer as the plurality of driving touch electrodes or the plurality of sensing touch electrodes.

[0029] The display device may further include a touch pad contact hole formed through a touch insulating layer and a touch buffer layer, wherein the lower touch pad electrode may be connected to the upper touch pad electrode in the touch pad contact hole.

[0030] In another aspect, a display device is provided, the display device including: a display area and a non-display area; an anode, a cathode, and a light emitting layer disposed between the anode and the cathode; a plurality of data lines disposed in the display area; a plurality of data link lines connected to the plurality of data lines; a packaging layer disposed on the cathode and having at least one organic layer and at least one inorganic layer; a touch sensor having a plurality of driving touch electrodes and a plurality of sensing touch electrodes disposed on the packaging layer; a plurality of driving touch lines connected to the plurality of driving touch electrodes, wherein in the non-display area the plurality of driving touch lines overlap a first portion of the cathode; a plurality of sensing touch lines connected to the plurality of sensing touch electrodes, wherein in the non-display area the plurality of sensing touch lines overlap a second portion of the cathode, and in the non-display area, at least one of the plurality of data link lines overlaps at least one of the plurality of driving touch lines.

[0031] According to the above embodiments of the present disclosure, a display device having a touch sensor structure capable of resisting noise of display driving electrodes / lines such as data lines can be provided.

[0032] According to an embodiment of the present disclosure, a display device can be provided that has a structure that enables a sensing touch line to be unaffected by noise even when noise occurs in a display driving electrode / line such as a data line.

[0033] Supplementary Note 1. A display device, the display device comprising:

[0034] a display area and a non-display area;

[0035] a plurality of data lines arranged in the display area;

[0036] a plurality of data link lines connected to the plurality of data lines;

[0037] a packaging layer having at least one organic layer and at least one inorganic layer;

[0038] a touch sensor having a plurality of driving touch electrodes and a plurality of sensing touch electrodes arranged on the packaging layer;

[0039] a plurality of driving touch lines connected to the plurality of driving touch electrodes; and

[0040] a plurality of sensing touch lines connected to the plurality of sensing touch electrodes,

[0041] wherein, in the non-display area, at least one of the plurality of data link lines overlaps at least one of the plurality of driving touch lines.

[0042] Supplementary Note 2. The display device according to Supplementary Note 1, wherein the plurality of driving touch lines or the plurality of sensing touch lines are arranged on a side surface of the packaging layer.

[0043] Supplementary Note 3. The display device according to Supplementary Note 1, the display device further comprising a touch buffer layer arranged on the packaging layer.

[0044] Supplementary Note 4. The display device according to Supplementary Note 3, wherein the touch buffer layer is arranged between the packaging layer and the plurality of driving touch lines or the plurality of sensing touch lines.

[0045] Supplementary Note 5. The display device according to Supplementary Note 3, the display device further comprising a touch insulating layer arranged on the touch buffer layer.

[0046] Supplementary Note 6. The display device according to Supplementary Note 5, the display device further comprising a bridge electrode arranged on the touch buffer layer.

[0047] Supplementary Note 7. The display device according to Supplementary Note 6, wherein the touch insulating layer is arranged between the bridge electrode and the touch sensor.

[0048] Supplementary Note 8. The display device according to Supplementary Note 6, wherein the bridge electrode or the touch sensor is in the form of a grid, and the grid includes a plurality of open areas.

[0049] Supplementary Note 9. The display device according to Supplementary Note 8, further comprising an anode, a cathode, and a light-emitting layer disposed between the anode and the cathode.

[0050] Supplementary Note 10. The display device according to Supplementary Note 9, further comprising a bank on the anode, the bank defining a plurality of pixel regions.

[0051] Supplementary Note 11. The display device according to Supplementary Note 10, wherein each of the plurality of open areas overlaps a corresponding one of the plurality of pixel regions.

[0052] Supplementary Note 12. The display device according to Supplementary Note 1, wherein in the non-display area, the plurality of sensing touch lines do not overlap any of the plurality of data link lines.

[0053] Supplementary Note 13. The display device according to Supplementary Note 1, wherein in the display area, a plurality of driving touch lines are arranged parallel to the plurality of data lines, and a plurality of sensing touch lines are arranged parallel to a plurality of gate lines.

[0054] Supplementary Note 14. The display device according to Supplementary Note 1, wherein in the non-display area,

[0055] a plurality of data pads are arranged to electrically connect the plurality of data link lines,

[0056] a plurality of driving touch pads are arranged to electrically connect the plurality of driving touch lines,

[0057] a plurality of sensing touch pads are arranged to electrically connect the plurality of sensing touch lines, and

[0058] the plurality of driving touch pads are arranged closer to the plurality of data pads than the plurality of sensing touch pads are arranged relative to the plurality of data pads.

[0059] Supplementary Note 15. The display device according to Supplementary Note 14, further comprising a thin-film transistor having a gate, a semiconductor layer, a source, and a drain.

[0060] Supplementary Note 16. The display device according to Supplementary Note 15, wherein the plurality of driving touch pads or sensing touch pads include a lower touch pad electrode and an upper touch pad electrode.

[0061] Supplementary Note 17. The display device according to Supplementary Note 16, wherein the lower touch pad electrode is formed in the same layer as the source or the drain.

[0062] Supplement 18. The display device according to Supplement 17, wherein the upper touch pad electrode is formed in the same layer as the plurality of driving touch electrodes or the plurality of sensing touch electrodes.

[0063] Supplement 19. The display device according to Supplement 18, further comprising a touch pad contact hole formed through the touch insulating layer and the touch buffer layer, wherein the lower touch pad electrode is connected to the upper touch pad electrode in the touch pad contact hole.

[0064] Supplement 20. A display device, comprising:

[0065] A display area and a non-display area;

[0066] An anode, a cathode, and a light-emitting layer disposed between the anode and the cathode;

[0067] A plurality of data lines disposed in the display area;

[0068] A plurality of data link lines connected to the plurality of data lines;

[0069] A packaging layer disposed on the cathode and having at least one organic layer and at least one inorganic layer;

[0070] A touch sensor having a plurality of driving touch electrodes and a plurality of sensing touch electrodes disposed on the packaging layer;

[0071] A plurality of driving touch lines connected to the plurality of driving touch electrodes, wherein in the non-display area, the plurality of driving touch lines overlap a first portion of the cathode;

[0072] A plurality of sensing touch lines connected to the plurality of sensing touch electrodes, wherein in the non-display area, the plurality of sensing touch lines overlap a second portion of the cathode, and

[0073] In the non-display area, at least one of the plurality of data link lines overlaps at least one of the plurality of driving touch lines.

[0074] Supplement 21. The display device according to Supplement 20, wherein the plurality of driving touch lines or the plurality of sensing touch lines are disposed on a side surface of the packaging layer.

[0075] Supplement 22. The display device according to Supplement 20, further comprising a touch buffer layer disposed on the packaging layer.

[0076] Supplementary Note 23. The display device according to Supplementary Note 22, wherein the touch buffer layer is disposed between the encapsulation layer and the plurality of driving touch lines or the plurality of sensing touch lines.

[0077] Supplementary Note 24. The display device according to Supplementary Note 22, further comprising a touch insulating layer disposed on the touch buffer layer.

[0078] Supplementary Note 25. The display device according to Supplementary Note 24, further comprising a bridge electrode disposed on the touch buffer layer.

[0079] Supplementary Note 26. The display device according to Supplementary Note 25, wherein the touch insulating layer is disposed between the bridge electrode and the touch sensor.

[0080] Supplementary Note 27. The display device according to Supplementary Note 25, wherein the bridge electrode or the touch sensor is in the form of a grid, and the grid includes a plurality of open areas.

[0081] Supplementary Note 28. The display device according to Supplementary Note 27, further comprising a bank disposed on the anode, and the bank defines a plurality of pixel regions.

[0082] Supplementary Note 29. In the display device according to Supplementary Note 28, each of the plurality of open areas overlaps with a corresponding one of the plurality of pixel regions.

[0083] Supplementary Note 30. The display device according to Supplementary Note 20, wherein in the non-display area, none of the plurality of sensing touch lines overlaps with any of the plurality of data link lines.

[0084] Supplementary Note 31. The display device according to Supplementary Note 20, wherein in the display area, the plurality of driving touch lines are arranged parallel to the plurality of data lines, and the plurality of sensing touch lines are arranged parallel to the plurality of gate lines.

[0085] Supplementary Note 32. The display device according to Supplementary Note 20, wherein in the non-display area,

[0086] a plurality of data pads are arranged to electrically connect the plurality of data link lines,

[0087] a plurality of driving touch pads are arranged to electrically connect the plurality of driving touch lines,

[0088] a plurality of sensing touch pads are arranged to electrically connect the plurality of sensing touch lines, and

[0089] compared with the arrangement of the plurality of sensing touch pads relative to the plurality of data pads, the plurality of driving touch pads are arranged closer to the plurality of data pads.

[0090] Supplementary Note 33. The display device according to Supplementary Note 32 further includes a thin film transistor having a gate, a semiconductor layer, a source, and a drain.

[0091] Supplementary Note 34. The display device according to Supplementary Note 33, wherein the plurality of driving touch pads or sensing touch pads include a lower touch pad electrode and an upper touch pad electrode.

[0092] Supplementary Note 35. The display device according to Supplementary Note 34, wherein the lower touch pad electrode is formed in the same layer as the source or the drain.

[0093] Supplementary Note 36. The display device according to Supplementary Note 35, wherein the upper touch pad electrode is formed in the same layer as the plurality of driving touch electrodes or the plurality of sensing touch electrodes.

[0094] Supplementary Note 37. The display device according to Supplementary Note 36 further includes a touch pad contact hole formed through a touch insulating layer and a touch buffer layer, wherein the lower touch pad electrode is connected to the upper touch pad electrode in the touch pad contact hole.

[0095] Supplementary Note 38. A display panel, the display panel comprising:

[0096] A plurality of data lines arranged in a display area;

[0097] A plurality of data link wirings, the plurality of data lines extending from the plurality of data link wirings or the plurality of data lines being connected to the plurality of data link wirings;

[0098] A plurality of driving touch electrode lines and a plurality of sensing touch electrode lines arranged in the display area;

[0099] A plurality of driving touch wirings connected to the plurality of driving touch electrode lines; and

[0100] A plurality of sensing touch wirings connected to the plurality of sensing touch electrode lines,

[0101] wherein the plurality of data link wirings, the plurality of driving touch wirings, and the plurality of sensing touch wirings are arranged in a non-display area which is an area outside the display area, and

[0102] In the non-display area, at least one of the plurality of data link wirings overlaps at least one of the plurality of driving touch wirings.

[0103] Supplementary Note 39. A display panel, the display panel comprising:

[0104] A plurality of data lines arranged in a display area;

[0105] Multiple data link wirings, where the multiple data lines extend from the multiple data link wirings or the multiple data lines are connected to the multiple data link wirings;

[0106] Multiple driving touch electrode lines and multiple sensing touch electrode lines arranged in a display area;

[0107] Multiple driving touch wirings connected to the multiple driving touch electrode lines; and

[0108] Multiple sensing touch wirings connected to the multiple sensing touch electrode lines,

[0109] wherein the multiple data link wirings, the multiple driving touch wirings, and the multiple sensing touch wirings are arranged in a non-display area that is an area outside the display area, and

[0110] in the non-display area of the display panel, the multiple sensing touch wirings do not overlap with the multiple data link wirings. BRIEF DESCRIPTION OF THE DRAWINGS

[0111] The above and other aspects, features, and advantages of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0112] Figure 1 is a system configuration diagram of a touch display device according to an embodiment of the present disclosure;

[0113] Figure 2 is a schematic diagram showing a touch sensor structure within a touch area of a display panel according to an embodiment of the present disclosure;

[0114] Figure 3 is a diagram showing, as an example, a touch sensor structure within a touch area of a display panel according to an embodiment of the present disclosure;

[0115] Figure 4 is a diagram showing a sub-pixel structure of a display panel according to an embodiment of the present disclosure;

[0116] Figure 5 is a diagram showing another sub-pixel structure of a display panel according to an embodiment of the present disclosure;

[0117] Figure 6 is a diagram showing a non-grid type touch electrode in a touch panel according to an embodiment of the present disclosure;

[0118] Figure 7 is a diagram showing a grid type touch electrode in a touch panel according to an embodiment of the present disclosure;

[0119] Figure 8It is a diagram for explaining the correspondence between the grid-type touch electrodes and sub-pixels in a display panel according to an embodiment of the present disclosure;

[0120] Figure 9 It is a cross-sectional view showing the touch area of a display panel according to an embodiment of the present disclosure;

[0121] Figure 10 It is a cross-sectional view showing another touch area of a display panel according to an embodiment of the present disclosure;

[0122] Figure 11 It is a diagram showing the first touch sensor structure of a display panel according to an embodiment of the present disclosure;

[0123] Figure 12 It is a diagram showing the first touch sensor structure of a display panel according to an exemplary embodiment of the present disclosure;

[0124] Figure 13 It is a diagram showing the structure of setting driving touch lines, sensing touch lines, and data link lines in a non-display area of the first touch sensor structure of a display panel according to an embodiment of the present disclosure;

[0125] Figure 14 It is Figure 13 A cross-sectional view of a part of;

[0126] Figure 15 It is a diagram showing the second touch sensor structure of a display panel according to an embodiment of the present disclosure;

[0127] Figure 16 It is a diagram showing the second touch sensor structure of a display panel according to an exemplary embodiment of the present disclosure;

[0128] Figure 17 It is a diagram showing the structure of setting driving touch lines, sensing touch lines, and data link lines in a non-display area N / A of the second touch sensor structure of a display panel according to an embodiment of the present disclosure;

[0129] Figure 18 It is Figure 17 A cross-sectional view of a part of; and

[0130] Figures 19 to 21 They are diagrams respectively showing the cases where internal virtual metals exist in the grid-type touch electrode areas in a display panel according to an embodiment of the present disclosure. Detailed Description of the Invention

[0131] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. When referring to elements of the drawings by reference numerals, the same elements will be referred to by the same reference numerals even though shown in different drawings. In addition, in the following description of the present disclosure, detailed descriptions of known functions and configurations included herein will be omitted when they may obscure the subject matter of the present disclosure.

[0132] In addition, terms such as first, second, A, B, (a), (b), etc. may be used herein when describing components of the present disclosure. Each of these terms is not used to define the nature, order, or sequence of the corresponding components, but is only used to distinguish the corresponding components from other components. In the case of describing that a first structural element is "connected to", "coupled to", or "in contact with" a second structural element, it should be interpreted that a third structural element may be connected to the first structural element and the second structural element, coupled to the first structural element and the second structural element, or in contact with the first structural element and the second structural element, and that the first structural element is directly connected to the second structural element or in direct contact with the second structural element.

[0133] Figure 1 is a system configuration diagram of a touch display device according to an embodiment of the present disclosure.

[0134] Referring to Figure 1 , a touch display device according to an embodiment of the present disclosure may provide an image display function for displaying an image and a touch sensing function for sensing a user's touch.

[0135] A touch display device according to an embodiment of the present disclosure may include a display panel DISP in which data lines DL and gate lines GL are arranged, a display driving circuit (not shown) configured to drive the display panel DISP, etc. for image display.

[0136] The display driving circuit may include a data driving circuit DDC configured to drive the data lines DL, a gate driving circuit GDC configured to drive the gate lines GL, a display controller D-CTR configured to control the data driving circuit DDC and the gate driving circuit GDC, etc.

[0137] A touch display device according to an embodiment of the present disclosure may include: a touch panel TSP including a plurality of touch electrodes as touch sensors for touch sensing; and a touch sensing circuit TSC configured to perform driving and sensing processing of the touch panel TSP, etc.

[0138] The touch sensing circuit TSC supplies a driving signal to the touch panel TSP to drive the touch panel TSP, detects a sensing signal from the touch panel TSP, and senses whether there is a touch and / or a touch position (touch coordinates).

[0139] This touch sensing circuit TSC may include: a touch driving circuit TDC configured to supply a driving signal and receive a sensing signal; and a touch controller T-CTR configured to calculate whether a touch exists and / or a touch position (touch coordinates), etc.

[0140] The touch sensing circuit TSC may be implemented using one or more components (e.g., an integrated circuit) and may be implemented separately from the display driving circuit.

[0141] In addition, the whole or part of the touch sensing circuit TSC may be integrated with the display driving circuit or one or more internal circuits of the display driving circuit. For example, the touch driving circuit TDC of the touch sensing circuit TSC may be implemented as an integrated circuit together with the data driving circuit DDC of the display driving circuit.

[0142] Furthermore, a touch display device according to an embodiment of the present disclosure is capable of sensing a touch based on a capacitance formed on a touch electrode TE.

[0143] A touch display device according to an embodiment of the present disclosure adopts a capacitance-based touch sensing scheme and is also capable of sensing a touch using a mutual capacitance-based touch sensing scheme.

[0144] In addition, the display panel DISP of a touch display device according to an embodiment of the present disclosure may be of various types, such as an organic light emitting diode (OLED) panel and a liquid crystal display (LCD) panel. Hereinafter, for convenience of explanation, the OLED panel will be mainly described as an example.

[0145] In addition, in a touch display device according to an embodiment of the present disclosure, the touch panel TSP may be an externally attached type that is separately manufactured from the display panel DISP and bonded to the display panel DISP, or may be a built-in type that is manufactured together with the display panel DISP and exists inside the display panel DISP.

[0146] In the case of the built-in type where the touch panel TSP exists inside the display panel DISP, the touch panel TSP may be regarded as a component of the touch electrode incorporated into the display panel DISP.

[0147] Hereinafter, for convenience of explanation, it is assumed that the touch panel TSP is of the built-in type that exists inside the display panel DISP.

[0148] Figure 2 It is a schematic diagram showing a touch sensor structure within a touch area of a display panel DSP according to an embodiment of the present disclosure. Figure 3 It is a schematic diagram showing a touch sensor structure within a touch area of a display panel DSP according to an exemplary embodiment of the present disclosure.

[0149] Referring to Figure 2 and Figure 3 , a touch electrode TE is disposed in a touch area (Touch Area) of a display panel DISP.

[0150] In the display panel DISP, the touch area may be an area where a user can perform touch input, and may be a display area A / A for displaying an image.

[0151] Referring to Figure 2 and Figure 3 , when a touch display device according to an embodiment of the present disclosure senses a touch by a mutual capacitance-based touch sensing scheme, a plurality of touch electrodes TE disposed in the touch area of the display panel DISP may be classified into driving touch electrodes TEd to which a driving signal is applied and sensing touch electrodes TEs configured to sense a sensing signal and form a capacitance with the driving touch electrodes.

[0152] Here, the driving touch electrode TEd may also be referred to as a driving electrode, a transmitting electrode, a driving line, etc. The sensing touch electrode TEs may be referred to as sensing electrodes, receiving electrodes, sensing lines, etc.

[0153] A plurality of driving touch electrodes TEd arranged in the same row (or the same column) are electrically connected to each other by integration (i.e., forming a monolithic piece) (or by connection using a bridge electrode BP) to form a driving touch electrode line DTEL. The bridge electrode BP may be a bridge in the form of a grid including a plurality of open areas OA.

[0154] A plurality of sensing touch electrodes TEs arranged in the same column (or the same row) are electrically connected to each other by the bridge electrode BP (or by integration) to form a sensing touch electrode line STEL.

[0155] In the case of a mutual capacitance-based touch sensing scheme, a touch sensing circuit TSC applies a driving signal to one or more driving touch electrode lines DTEL and receives a sensing signal from one or more sensing touch electrode lines STEL. The term "sensing touch electrode line STEL" is used herein to represent a part of the sensing touch line in the display area A / A. Similarly, the term "driving touch electrode line DTEL" is used herein to represent a part of the driving touch line in the display area A / A of the display. Whether there is a touch and / or coordinates, etc. are detected using the received sensing signal and based on a change in the capacitance (mutual capacitance) between the driving touch electrode line DTEL and the sensing touch electrode line STEL, where the change in capacitance depends on the presence of a pointing object such as a finger or a pen.

[0156] To drive signal transmission and sense signal transmission, each of a plurality of driving touch electrode lines DTEL and a plurality of sensing touch electrode lines STEL is electrically connected to a touch driving circuit TDC via one or more touch lines.

[0157] Figure 4 is a diagram showing a sub-pixel structure of a display panel DISP according to an embodiment of the present disclosure, Figure 5 is a diagram showing another sub-pixel structure of a display panel DISP according to an embodiment of the present disclosure.

[0158] Referring to Figure 4 , when the touch display device 100 according to an embodiment is an OLED display device, each sub-pixel may include: an OLED; a driving transistor DRT configured to drive the OLED; a first transistor T1 configured to send a data voltage to a first node N1 corresponding to a gate node of the driving transistor DRT; and a storage capacitor C1 configured to maintain a data voltage corresponding to an image signal voltage or a voltage corresponding thereto for one frame period.

[0159] The OLED may include a first electrode E1 (e.g., an anode or a cathode), an organic light-emitting layer OEL, a second electrode E2 (e.g., a cathode or an anode), etc.

[0160] A ground voltage EVSS may be applied to the second electrode E2 of the OLED.

[0161] The driving transistor DRT drives the OLED by supplying a driving current to the OLED.

[0162] The driving transistor DRT has a first node N1, a second node N2, and a third node N3.

[0163] The first node N1 of the driving transistor DRT is a node corresponding to the gate node and may be electrically connected to a source node or a drain node of the first transistor T1.

[0164] The second node N2 of the driving transistor DRT may be electrically connected to the first electrode E1 of the OLED and may be a source node or a drain node.

[0165] The third node N3 of the driving transistor DRT may be a node to which a driving voltage EVDD is applied and may be electrically connected to a driving voltage line DVL that supplies the driving voltage EVDD. The third node N3 may be a drain node or a source node.

[0166] The first transistor T1 is electrically connected between a data line DL and the first node N1 of the driving transistor DRT and may be controlled by receiving a scan signal SCAN applied to its gate node through a gate line GL.

[0167] The first transistor T1 can be turned on by the scan signal SCAN to transmit the data voltage Vdata supplied from the data line DL to the first node N1 of the driving transistor DRT.

[0168] The storage capacitor C1 can be electrically connected between the first node N1 and the second node N2 of the driving transistor DRT.

[0169] The storage capacitor C1 is not a parasitic capacitor (an internal capacitor existing between the first node N1 and the second node N2 of the driving transistor DRT), but an external capacitor intentionally designed outside the driving transistor DRT.

[0170] In addition, as Figure 5 shown, each sub-pixel may further include a second transistor T2 to control the voltage of the second node N2 of the driving transistor DRT or sense the characteristic value of the sub-pixel (e.g., the threshold voltage or mobility of the driving transistor DRT or the threshold voltage of the OLED).

[0171] The second transistor T2 can be electrically connected between the second node N2 of the driving transistor DRT and the reference voltage line RVL supplying the reference voltage VREF, and can be controlled by receiving the sense signal SENSE (a kind of scan signal) using the gate node.

[0172] The second transistor T2 is turned on by the sense signal SENSE to apply the reference voltage VREF supplied via the reference voltage line RVL to the second node N2 of the driving transistor DRT.

[0173] In addition, the second transistor T2 can be used as one of the voltage sensing paths of the second node N2 of the driving transistor DRT.

[0174] In addition, the scan signal SCAN and the sense signal SENSE can be separate gating signals. In this case, the scan signal SCAN and the sense signal SENSE can be respectively applied to the gate node of the first transistor T1 and the gate node of the second transistor T2 via different gating lines GL.

[0175] In some cases, the scan signal SCAN and the sense signal SENSE can be the same gating signal. In this case, the scan signal SCAN and the sense signal SENSE can be commonly applied to the gate node of the first transistor T1 and the gate node of the second transistor T2 via the same gating line.

[0176] Each of the driving transistor DRT, the first transistor T1, and the second transistor T2 may be an n-type transistor or a p-type transistor. Similarly, each of the driving transistor DRT, the first transistor T1, and the second transistor T2 may be a thin film transistor. Each of the driving transistor DRT, the first transistor T1, and the second transistor T2 may have a gate, a semiconductor layer, a source, and a drain.

[0177] Except for Figure 4 and Figure 5 as shown, each sub-pixel structure may be modified in various ways.

[0178] Figure 6 is a diagram showing a non-mesh type touch electrode TE in a display panel DISP according to an embodiment of the present disclosure.

[0179] Referring to Figure 6 , in a touch display device according to an embodiment of the present disclosure, each of the plurality of touch electrodes TE provided on the display panel DISP may be non-mesh type.

[0180] The non-mesh type touch electrode TE may be a plate-shaped electrode metal without an open area.

[0181] In this case, the touch electrode TE may be a transparent electrode.

[0182] Figure 7 is a diagram showing a mesh type touch electrode TE provided in a display panel DISP according to an embodiment of the present disclosure, Figure 8 is a diagram for explaining the correspondence between the mesh type touch electrode TE and sub-pixels in a display panel DISP according to an embodiment of the present disclosure.

[0183] Referring to Figure 7 , in a touch display device according to an embodiment of the present disclosure, each of the plurality of touch electrodes TE provided on the display panel DISP may be mesh type.

[0184] The mesh type touch electrode TE may be made of an electrode metal EM patterned in a mesh form.

[0185] Therefore, a plurality of open areas OA may exist in the area of the mesh type touch electrode TE. Each of the plurality of open areas OA may overlap with a corresponding one of the plurality of pixel areas defined by the banks BK in the first electrode E1.

[0186] Referring to Figure 8 , each of the plurality of open areas OA existing in the area of the touch electrode TE made of the electrode metal EM patterned in a mesh type may correspond to the light emitting area of one or more sub-pixels.

[0187] For example, each of the plurality of open areas OA present in the area of a touch electrode TE may correspond to at least one of red, green, and blue sub-pixels.

[0188] In another example, each of the plurality of open areas OA present in the area of a touch electrode TE may correspond to at least one of red, green, blue, and white sub-pixels.

[0189] As described above, since there is a light-emitting area of one or more sub-pixels in each open area OA of each touch electrode TE in the plan view, the aperture ratio and luminous efficiency of the display panel DISP can be further increased while allowing touch sensing.

[0190] As described above, the contour of a touch electrode TE may be approximately diamond-shaped, rectangular (including square), etc., and the open area OA corresponding to the hole in one touch electrode TE may also be diamond-shaped, rectangular (may include square), etc.

[0191] However, the shape of the touch electrode TE and the shape of the open area OA can be differently modified and designed in consideration of the shape of the sub-pixels, the arrangement structure of the sub-pixels, touch sensitivity, etc.

[0192] Figure 9 is a cross-sectional view showing the touch area of the display panel DISP according to an embodiment of the present disclosure, Figure 10 is another cross-sectional view showing the touch area of the display panel DISP according to an embodiment of the present disclosure.

[0193] Referring to Figure 9 and Figure 10 , when the touch panel TSP is built in the display panel DISP and the display panel DISP is implemented as an OLED display panel, the touch panel TSP can be arranged on the encapsulation layer ENCAP in the display panel DISP. In other words, a touch sensor metal such as a plurality of touch electrodes TE can be arranged on the encapsulation layer ENCAP in the display panel DISP.

[0194] As described above, by forming the touch electrode TE on the encapsulation layer ENCAP, the touch electrode TE can be formed without significantly affecting the display performance and the formation of display-related layers.

[0195] In addition, referring to Figure 9 and Figure 10 , a cathode may exist under the encapsulation layer ENCAP, and the cathode may be the second electrode E2 of the OLED.

[0196] The thickness T of the encapsulation layer ENCAP may be, for example, 5 micrometers or more.

[0197] As described above, by designing the thickness of the encapsulation layer ENCAP to be 5 μm or more, the parasitic capacitance formed between the cathode of the OLED and the touch electrode TE can be reduced. Therefore, deterioration of the touch sensitivity due to the parasitic capacitance can be prevented.

[0198] As described above, each of the plurality of touch electrodes TE is patterned in a grid form, where the electrode metal EM has a plurality of open areas OA. In the plurality of open areas OA, when viewed in a plan view, one or more sub-pixels or their light-emitting regions can be seen.

[0199] As described above, the electrode metal EM of the touch electrode TE is patterned such that when viewed in a plan view, the light-emitting region of at least one sub-pixel corresponds to the position of each open area OA within the touch electrode TE, and the light-emitting efficiency of the display panel DISP can be enhanced.

[0200] Therefore, as Figure 9 and Figure 10 shown, the position of the black matrix BM can correspond to the position of the electrode metal EM of the touch electrode TE.

[0201] In addition, the positions of the plurality of color filters CF correspond to the positions of the plurality of touch electrodes TE.

[0202] As described above, since the plurality of color filters CF are provided at positions corresponding to the positions of the plurality of open areas OA, an OLED display panel (specifically, when using a white OLED) and a touch display device having improved light-emitting performance can be provided.

[0203] Now, the positional relationship between the plurality of color filters CF and the plurality of touch electrodes TE will be described.

[0204] As Figure 9 shown, the plurality of color filters CF and the black matrix BM can be arranged on the plurality of touch electrodes TE.

[0205] The plurality of color filters CF and the black matrix BM can be arranged on the cover layer OC on the plurality of touch electrodes TE.

[0206] As Figure 10 shown, the plurality of color filters CF and the black matrix BM can be arranged below the plurality of touch electrodes TE.

[0207] The plurality of touch electrodes TE can be arranged on the cover layer OC on the plurality of color filters CF and the black matrix BM.

[0208] As described above, considering display performance such as light-emitting performance and touch performance, a touch display device having an optimal positional relationship between the color filter CF and the touch electrode TE can be provided.

[0209] In addition, attempts have been made to incorporate a touch panel TSP including a touch electrode TE into a display panel DISP in order to improve the manufacturing convenience of a touch display device and reduce the size of the touch display device.

[0210] However, there are considerable difficulties and many limitations in incorporating the touch panel TSP into the display panel DISP which is an OLED display panel.

[0211] For example, during the manufacturing process of the display panel DISP which is an OLED display panel, there is such a limitation: due to the organic materials, the high-temperature process for forming the touch electrode TE (usually made of a metal material) inside the panel cannot be freely performed.

[0212] Due to constraints such as the structural characteristics and the process of manufacturing the OLED display panel, it is difficult to arrange the touch electrode TE serving as a touch sensor inside the display panel DISP which is an OLED display panel. Therefore, in the prior art, the touch structure is realized by attaching the touch panel TSP to the display panel DISP which is an OLED display panel rather than incorporating the touch panel TSP into the display panel DISP which is an OLED display panel.

[0213] However, as Figure 9 and Figure 10 shown, a display panel DISP which is an OLED display panel can be provided, in which, for example, a touch panel TSP having excellent display performance and touch performance is incorporated by forming a structure of the touch electrode TE on the encapsulation layer ENCAP.

[0214] Figure 11 is a diagram showing a first touch sensor structure of the display panel DISP according to an embodiment of the present disclosure, Figure 12 is a diagram showing a first touch sensor structure of the display panel DISP according to an exemplary embodiment of the present disclosure. Figure 13 is a diagram showing a structure in which drive touch lines TLd, sense touch lines TLs, and data link lines DLL are provided in a non-display area N / A which is an outer area of a display area A / A in a first touch sensor structure of the display panel DISP according to an embodiment of the present disclosure. Figure 14 is Figure 13 a cross-sectional view of a part A - A' of

[0215] Referring to Figures 11 to 13 , in order to drive the touch panel TSP, each of a plurality of drive touch electrode lines DTEL is electrically connected to at least one drive touch line TLd. Each drive touch line TLd is electrically connected to a touch drive circuit TDC via a drive touch pad TPd.

[0216] Referring to Figures 11 to 13, in order to sense the touch panel TSP, each of the plurality of sensing touch electrode lines STEL is electrically connected to one or more sensing touch lines TLs. Each of the sensing touch lines TLs is electrically connected to the touch driving circuit TDC via the sensing touch pads TPs.

[0217] Referring to Figures 11 to 13 , the line arrangement structure of each region of the display panel DISP will be described below.

[0218] A plurality of data lines DL and a plurality of gate lines GL are arranged in the display area A / A of the display panel DISP.

[0219] A plurality of driving touch electrode lines DTEL and a plurality of sensing touch electrode lines STEL are arranged in the display area A / A of the display panel DISP.

[0220] In the non-display area N / A which is the area outside the display area A / A of the display panel DISP, a plurality of data link lines DLL are arranged, and a plurality of data lines DL extend from the plurality of data link lines DLL or a plurality of data lines DL are connected to the plurality of data link lines DLL. In other words, each of the plurality of data lines DL extends from a corresponding one of the plurality of data link lines DLL, or each of the plurality of data lines DL is connected to a corresponding one of the plurality of data link lines DLL. In addition, in the non-display area N / A, a plurality of driving touch lines TLd connected to the plurality of driving touch electrode lines DTEL are arranged, and a plurality of sensing touch lines TLs connected to the plurality of sensing touch electrode lines STEL are arranged.

[0221] According to the first touch sensor structure of the display panel DISP, in the display area A / A corresponding to the touch area of the display panel DISP, the plurality of driving touch electrode lines DTEL can be arranged in the same direction as the plurality of gate lines GL, and the plurality of sensing touch electrode lines STEL can be arranged in the same direction as the plurality of data lines DL.

[0222] According to the first touch sensor structure of the display panel DISP, in the non-display area which is the outer area of the display area A / A of the display panel DISP, a plurality of data link lines DLL can be arranged, a plurality of data lines DL extend from the plurality of data link lines DLL or a plurality of data lines DL are connected to the plurality of data link lines DLL, a plurality of driving touch lines TLd connected to the plurality of driving touch electrode lines DTEL can be arranged, and a plurality of sensing touch lines TLs connected to the plurality of sensing touch electrode lines STEL can be arranged.

[0223] Referring to Figure 13 , the cathode forming area C / A may have a size substantially equal to or larger than the display area A / A.

[0224] According to the first touch sensor structure of the display panel DISP, in the non-display area N / A of the display panel DISP, all or some of the plurality of sensing touch lines TLs may overlap with at least one of the plurality of data link lines DLLs.

[0225] However, in the non-display area N / A of the display panel DISP, the plurality of driving touch lines TLd may not overlap with any of the plurality of data link lines DLLs.

[0226] Referring Figure 14 , a polyimide layer PI is disposed on a substrate or a backplane (not shown).

[0227] The polyimide layer PI may be flexible.

[0228] The polyimide layer PI may be disposed on the substrate, or the polyimide layer PI may exist without a substrate.

[0229] In addition, only the substrate may exist without the polyimide layer PI. Here, the substrate may be flexible or non-flexible.

[0230] A source-drain layer may exist on the polyimide layer PI.

[0231] In the source-drain layer, various signal lines such as data lines DL, source / drains of various transistors, etc. may be formed in the display area A / A.

[0232] In addition, in the source-drain layer, data link lines DLL, touch pads (e.g., TPs), etc. may be formed in the non-display area N / A. Specifically, as discussed below, lower touch pad electrodes may be formed in the source-drain layer.

[0233] A planarization layer PLN may be disposed on the source-drain layer.

[0234] On the planarization layer PLN, a first electrode E1 is provided at the light-emitting position of each sub-pixel, and a bank BK is disposed on the first electrode E1. Here, since the first electrode E1 exists in each sub-pixel, it may be referred to as a pixel electrode. The bank defines a plurality of pixel regions.

[0235] An organic light-emitting layer EL is disposed on the first electrode E1 and is located between two adjacent banks BK.

[0236] A second electrode E2 may be disposed on the organic light-emitting layer EL. Here, the second electrode E2 may be a common electrode formed by all sub-pixel regions together.

[0237] On the second electrode E2, an encapsulation layer ENCAP for preventing infiltration of moisture, air, etc. may exist.

[0238] The encapsulation layer ENCAP can be a single layer, or two or more layers can be laminated. Additionally, the encapsulation layer ENCAP can be a metal layer, or two or more organic and inorganic layers can be laminated.

[0239] Figure 14 Shows a case where the encapsulation layer ENCAP is formed by laminating a first passivation layer PAS1, a second encapsulation layer PCL, and a third passivation layer PAS2. Here, the first passivation layer PAS1 can be a first inorganic layer, the second encapsulation layer PCL can be an organic layer, and the third passivation layer PAS2 can be a second inorganic layer. A plurality of sensing touch lines TLs can be arranged on the side surface of the encapsulation layer ENCAP.

[0240] On the other hand, there can be a dam (DAM) on the outer side of the panel.

[0241] The dam (DAM) can be formed at or near one or more boundary points of the first passivation layer PAS1, the second encapsulation layer PCL, and the third passivation layer PAS2. By laminating the bank BK and the encapsulation layer ENCAP, the dam (DAM) can be formed higher.

[0242] The dam (DAM) can prevent the encapsulation layer ENCAP from collapsing toward the side of the panel.

[0243] Additionally, since the encapsulation layer ENCAP extends partially into the dam (DAM), the dam (DAM) can function as a seal, protecting pixels, etc. from moisture, etc. flowing in from the side of the panel to the inside.

[0244] On the other hand, a touch buffer layer T-BUF is arranged on the encapsulation layer ENCAP. The touch buffer layer T-BUF can be arranged between the encapsulation layer ENCAP and the plurality of sensing touch lines TLs. Bridge electrodes are arranged on the touch buffer layer T-BUF.

[0245] A touch insulating layer ILD is arranged on the touch buffer layer T-BUF. The touch insulating layer ILD is arranged between the bridge electrode BP and the touch electrodes TEd and TEs.

[0246] On the touch insulating layer ILD, touch electrodes TEd and TEs are formed and touch lines TLd and TLs for connecting the touch electrodes TEd and TEs to two touch pads TPd and TPs are formed.

[0247] The touch lines TLd and TLs and the touch electrodes TEd and TEs can be formed on different layers or on the same layer.

[0248] Each of the touch electrodes TEd and TEs is an example of a grid type having a plurality of open areas OA.

[0249] Figure 14 is alongFigure 13 A cross-sectional view taken along line A-A’ shows the sensing touch electrode lines STEL, the sensing touch lines TLs connected to the sensing touch electrode lines STEL, and the sensing touch pads TPs connected to the sensing touch lines TLs. Accordingly, the touch electrodes and touch lines disposed on the touch insulating layer ILD correspond to the sensing touch electrodes TEs and the sensing touch lines TLs, and the touch pads connected to the sensing touch lines TLs also correspond to the sensing touch pads TPs.

[0250] Referring to Figure 14 , the sensing touch pads TPs may have an upper touch pad electrode and a lower touch pad electrode. The lower touch pad electrode may be formed in the same layer as the source or drain. The upper touch pad electrode may be formed in the same layer as the plurality of driving touch electrodes TEd.

[0251] A touch pad contact hole may be formed through the touch insulating layer ILD and the touch buffer layer T-BUF. The lower touch pad electrode may be connected to the upper touch pad electrode in the touch pad contact hole.

[0252] Referring to Figure 14 , the sensing touch lines TLs are connected to the sensing touch electrodes TEs and extend from the non-display area N / A beyond the area where the dam (DAM) is located to the area outside the dam.

[0253] As Figure 14 shown, a part of the sensing touch lines TLs extending to the area outside the dam can be used as the sensing touch pads TPs, and in some cases, can contact the electrode pattern formed in the source-drain layer to be used as the sensing touch pads TPs together with the electrode pattern.

[0254] In addition, a part of the sensing touch lines TLs extending to the area outside the dam is connected to the electrode pattern formed on the source-drain layer, and the electrode pattern can be used as the sensing touch pads TPs.

[0255] Furthermore, the encapsulation layer ENCAP can be formed to have a predetermined thickness. Here, the thickness of the encapsulation layer ENCAP can be designed considering the RC delay and the influence on the touch performance (touch sensitivity) during touch driving and touch sensing.

[0256] Referring to Figure 13 and Figure 14 , since the sensing touch electrodes TEs are formed on the encapsulation layer ENCAP, the sensing touch lines TLs connecting the sensing touch electrodes TEs and the sensing touch pads TPs have no choice but to pass through the data line DL or the data link line DLL connected to the data line DL.

[0257] Referring to Figure 13 and Figure 14, in the display area A / A, the second electrode E2 is present between the sensing touch electrode TEs and the data line DL. The second electrode E2 is also present between the driving touch electrode TEd and the data line DL.

[0258] In addition, even in a part of the outer area of the display area A / A, the second electrode E2 is present between the sensing touch line TLs and the data link line DLL.

[0259] As described above, when the second electrode E2 is present between the data line DL and the data link line DLL and between the sensing touch electrode TEs and the sensing touch line TLs, noise generated from the data line DL can be prevented (shielded) from flowing into the sensing touch electrode TEs and the sensing touch line TLs. For example, the noise generated in the data line DL can be generated according to the change in the data voltage applied to the data line DL.

[0260] However, since there is no second electrode E2 corresponding to the common electrode when the sensing touch line TLs are closer to the sensing touch pads TPs (i.e., in the non-display area N / A outside the cathode area C / A), the noise (also referred to as data noise) generated in the data line DL cannot be shielded.

[0261] When the noise generated in the data line DL flows into the sensing touch line TLs or the sensing touch pads TPs as described above, the signal-to-noise ratio SNR of the sensing signal received by the touch driving circuit TDC can be reduced and the touch sensitivity can also be significantly decreased.

[0262] Therefore, the display panel DISP of the touch display device according to an embodiment of the present disclosure can have a second touch sensor structure that resists data noise. This will be described with reference to Figures 15 to 18 to describe.

[0263] Figure 15 is a diagram showing the second touch sensor structure of the display panel DISP according to an embodiment of the present disclosure, Figure 16 is a diagram showing, as an example, the second touch sensor structure of the display panel DISP according to an embodiment of the present disclosure. Figure 17 is a diagram showing a structure in which a driving touch line TLd, a sensing touch line TLs, and a data link line DLL are provided in the non-display area N / A of the second touch sensor structure of the display panel DISP according to an embodiment of the present disclosure. Figure 18 is Figure 17 a cross-sectional view of a part of

[0264] Refer to Figures 15 to 17, in order to drive the touch panel TSP, each of the plurality of driving touch electrode lines DTEL is electrically connected to at least one driving touch line TLd. Each driving touch line TLd is electrically connected to the touch driving circuit TDC via a driving touch pad TPd.

[0265] Refer to Figures 15 to 17 , in order to sense the touch panel TSP, each of the plurality of sensing touch electrode lines STEL is electrically connected to one or more sensing touch lines TLs. Each sensing touch line TLs is electrically connected to the touch driving circuit TDC via a sensing touch pad TPs.

[0266] Refer to Figures 15 to 17 , the line layout structure of each region of the display panel DISP will be described below.

[0267] A plurality of data lines DL and a plurality of gate lines GL are arranged in the display area A / A of the display panel DISP.

[0268] A plurality of driving touch electrode lines DTEL and a plurality of sensing touch electrode lines STEL are arranged in the display area A / A of the display panel DISP.

[0269] In the non-display area N / A which is the area outside the display area A / A of the display panel DISP, a plurality of data link lines DLL are arranged, a plurality of data lines DL extend from the plurality of data link lines DLL or a plurality of data lines DL are connected to the plurality of data link lines DLL, a plurality of driving touch lines TLd connected to the plurality of driving touch electrode lines DTEL are arranged, and a plurality of sensing touch lines TLs connected to the plurality of sensing touch electrode lines STEL are arranged.

[0270] According to the second touch sensor structure of the display panel DISP, in the display area A / A corresponding to the touch area of the display panel DISP, the plurality of driving touch electrode lines DTEL can be arranged in the same direction as the plurality of data lines DL, and the plurality of sensing touch electrode lines STEL can be arranged in the same direction as the plurality of gate lines GL.

[0271] According to the second touch sensor structure of the display panel DISP, in the non-display area N / A which is the outer area of the display area A / A of the display panel DISP, a plurality of data link lines DLL can be arranged, a plurality of data lines DL can extend from the plurality of data link lines DLL or a plurality of data lines DL are connected to the plurality of data link lines DLL, a plurality of driving touch lines TLd connected to the plurality of driving touch electrode lines DTEL can be arranged, and a plurality of sensing touch lines TLs connected to the plurality of sensing touch electrode lines STEL can be arranged.

[0272] Refer to Figure 17, the cathode formation region C / A may have a size substantially equal to or greater than that of the display region A / A.

[0273] In addition, referring to Figure 17 and Figure 18 , according to the second touch sensor structure of the display panel DISP, in the non-display region of the display panel DISP, none of the plurality of sensing touch lines TLs overlap with any of the plurality of data link lines DLL.

[0274] Therefore, it is possible to prevent the noise generated in the data line DL from flowing into the sensing touch lines TLs or the sensing touch pads TPs, thereby preventing the touch sensitivity from being reduced due to data noise.

[0275] Referring to Figure 17 and Figure 18 , in the case of the second touch sensor structure of the display panel DISP, compared with the first touch sensor structure, the positions and directions of the driving touch electrode line DTEL and the sensing touch electrode line STEL are changed.

[0276] Therefore, in the case of the second touch sensor structure of the display panel DISP, the positions of the driving touch line TLd and the sensing touch line TLs are also changed, and the positions of the driving touch pad TPd and the sensing touch pad TPs are also changed.

[0277] In this second touch sensor structure, in the non-display region N / A of the display panel DISP, at least one of the plurality of data link lines DLL may overlap with at least one of the plurality of driving touch lines TLd.

[0278] Therefore, according to the second touch sensor structure, since the position of the driving touch line TLd is changed to a position where the driving touch line TLd overlaps with the data link line DLL, it is possible to prevent the phenomenon that the noise generated in the data line DL flows into the sensing touch lines TLs or the sensing touch pads TPs, etc., whereby the touch sensitivity can be prevented from being reduced.

[0279] Of course, even if the noise generated in the data line DL may flow into the driving touch line TLd or the driving touch pad TPd, the noise will not greatly affect the touch sensitivity.

[0280] Referring to Figure 18 , a polyimide layer PI is disposed on a substrate or a backplane (not shown).

[0281] A source-drain layer may exist on the polyimide layer PI.

[0282] In the source-drain layer, various signal lines such as data lines DL, source / drains of various transistors, etc. may be formed in the display region A / A.

[0283] In addition, in the source-drain layer, data link lines DLL, touch pads (e.g., TPs), etc. can be formed in the non-display area N / A. Specifically, as discussed below, the lower touch pad electrodes can be formed in the source-drain layer.

[0284] The planarization layer PLN can be disposed on the source-drain layer.

[0285] On the planarization layer PLN, the first electrode E1 is disposed at the light-emitting positions of the respective sub-pixels, and the bank BK is disposed on the first electrode E1.

[0286] The organic light-emitting layer EL is disposed on the first electrode E1 and is located between two adjacent banks BK.

[0287] The second electrode E2 can be disposed on the organic light-emitting layer EL. Here, the second electrode E2 can be a common electrode formed commonly in all sub-pixel regions.

[0288] On the second electrode E2, an encapsulation layer ENCAP for preventing infiltration of moisture, air, etc. can be present.

[0289] The encapsulation layer ENCAP can be a single layer, or two or more layers can be laminated. In addition, the encapsulation layer ENCAP can be a metal layer, or two or more organic and inorganic layers can be laminated.

[0290] Figure 18 The case where the encapsulation layer ENCAP is formed by laminating a first encapsulation layer PAS1, a second encapsulation layer PCL, and a third encapsulation layer PAS2 is shown. Here, the first encapsulation layer PAS1 can be a first inorganic layer, the second encapsulation layer PCL can be an organic layer, and the third encapsulation layer PAS2 can be a second inorganic layer. A plurality of driving touch lines TLd can be disposed on the side surface of the encapsulation layer ENCAP.

[0291] On the other hand, a dam (DAM) can be present on the outer side of the panel.

[0292] The dam (DAM) can be formed at or near one or more boundary points of the first encapsulation layer PAS1, the second encapsulation layer PCL, and the third encapsulation layer PAS2. By laminating the bank BK and the encapsulation layer ENCAP, the dam (DAM) can be formed higher.

[0293] The dam (DAM) can prevent the encapsulation layer ENCAP from collapsing toward the contour of the panel.

[0294] In addition, since the encapsulation layer ENCAP extends partially in the dam (DAM), the dam (DAM) can function as a seal, thereby protecting pixels, etc. from moisture, etc. flowing from the side of the panel to the inside.

[0295] On the other hand, a touch buffer layer T-BUF is disposed on the encapsulation layer ENCAP. The touch buffer layer T-BUF may be disposed between the encapsulation layer ENCAP and a plurality of sensing touch lines TLs. A bridge electrode is disposed on the touch buffer layer T-BUF.

[0296] A touch insulating layer ILD is disposed on the touch buffer layer T-BUF. The touch insulating layer ILD is disposed between the bridge electrode BP and the touch electrodes TEd and TEs.

[0297] On the touch insulating layer ILD, touch electrodes TEd and TEs are formed and touch lines TLd and TLs for connecting the touch electrodes TEd and TEs to two touch pads TPd and TPs are formed.

[0298] The touch lines TLd and TLs and the touch electrodes TEd and TEs may be formed on different layers or the same layer.

[0299] Each of the touch electrodes TEd and TEs is an example of a mesh type having a plurality of open areas OA.

[0300] Figure 18 is a cross-sectional view taken along line B-B’ Figure 17 showing a case where there are a driving touch electrode line DTEL, a driving touch line TLd connected to the driving touch electrode line DTEL, and a driving touch pad TPd connected to the driving touch line TLd. Accordingly, the touch electrodes and touch lines disposed on the touch insulating layer ILD correspond to the driving touch electrodes TEd and the driving touch line TLd, and the touch pad connected to the driving touch line TLd also corresponds to the driving touch pad TPd.

[0301] Referring to Figure 18 , the driving touch pad TPd may have an upper touch pad electrode and a lower touch pad electrode. The lower touch pad electrode may be formed in the same layer as the source or drain. The upper touch pad electrode may be formed in the same layer as the plurality of driving touch electrodes TEd.

[0302] A touch pad contact hole may be formed through the touch insulating layer ILD and the touch buffer layer T-BUF. The lower touch pad electrode may be connected to the upper touch pad electrode in the touch pad contact hole.

[0303] Referring to Figure 18 , the driving touch line TLd is connected to the driving touch electrode TEd and extends from a non-display area N / A beyond the area where the dam (DAM) is located to an area outside the dam.

[0304] As Figure 18As shown, a part of the driving touch line TLd extending to the area outside the dam can be used as a driving touch pad TPd, and in some cases, it can be in contact with the electrode pattern formed in the source-drain layer and used as the driving touch pad TPd together with the electrode pattern.

[0305] In addition, a part of the driving touch line TLd extending to the area outside the dam is connected to the electrode pattern formed on the source-drain layer, and the electrode pattern can be used as the driving touch pad TPd.

[0306] Furthermore, the encapsulation layer ENCAP can be formed to have a predetermined thickness. Here, the thickness of the encapsulation layer ENCAP can be designed in consideration of the RC delay and the influence on the touch performance (touch sensitivity) during touch driving and touch sensing.

[0307] Referring to Figure 17 and Figure 18 , according to the second touch sensor structure of the display panel DISP of the touch display device according to an embodiment of the present disclosure, in the area where there is no second electrode E2 corresponding to the common electrode (i.e., the area outside the cathode forming area C / A), the sensing touch line TLs and the data link line DLL do not overlap with each other.

[0308] Therefore, the noise generated in the data line DL can be prevented from flowing into the sensing touch line TLs, the sensing touch pad TPs, etc.

[0309] Referring to Figure 18 , according to the second touch sensor structure, the non-display area N / A of the display panel DISP can include the area where the common electrode E2 is formed (the area within the cathode forming area C / A). In other words, multiple driving touch lines TLd can overlap with a part of the common electrode E2. Similarly, multiple sensing touch lines TLs can overlap with different parts of the common electrode E2.

[0310] The non-display area N / A of the display panel DISP can include the area where there is no common electrode (e.g., the second electrode E2) between at least one of the multiple driving touch lines TLd and at least one of the multiple data link lines DLL.

[0311] As described above, in the non-display area N / A of the display panel DISP, since there is no common electrode (e.g., the second electrode E2) between at least one of the multiple driving touch lines TLd and at least one of the multiple data link lines DLL, the noise generated in the data line DL can flow into the driving touch line TLd.

[0312] As described above, as in Figures 15 to 17As shown, according to the second touch sensor structure, a plurality of driving touch electrode lines DTEL can be arranged in parallel with a plurality of data lines DL, and a plurality of sensing touch electrode lines STEL can be arranged in parallel with a plurality of gate lines GL.

[0313] According to this structure, a plurality of driving touch lines TLd connected to the plurality of driving touch electrode lines DTEL can be disposed in a region of the non-display area N / A where a plurality of data link lines DLL are formed.

[0314] Referring to Figure 15 and Figure 16 , each of the plurality of driving touch electrode lines DTEL can be formed of a plurality of driving touch electrodes TEd integrated with or electrically connected to each other. In addition, each of the plurality of sensing touch electrode lines STEL can be formed of a plurality of sensing touch electrodes TEs integrated with or electrically connected to each other.

[0315] Referring to Figure 15 and Figure 16 , one end of each of the plurality of driving touch electrode lines DTEL is connected to the driving touch line TLd, or both ends of each of the plurality of driving touch electrode lines DTEL are connected to the driving touch line TLd. One end of each of the plurality of sensing touch electrode lines STEL can be connected to the sensing touch line TLs, or both ends of each of the plurality of sensing touch electrode lines STEL can be connected to the sensing touch line TLs.

[0316] According to the above description, various touch sensor structures can be fabricated for capacitance-based touch sensing. For example, when one driving touch line is connected to one driving touch electrode line, the size of the driving touch line forming space can be reduced. In contrast, when two driving touch lines TLd are connected to one driving touch electrode line, a driving signal can be stably supplied to one driving touch electrode line. For example, when one sensing touch line is connected to one sensing touch electrode line, the size of the sensing touch line forming space can be reduced. In contrast, when two driving touch lines TLd are connected to one sensing touch electrode line, a sensing signal can be stably detected from one sensing touch electrode line.

[0317] Referring to Figures 15 to 17 , in the non-display area N / A of the display panel DISP, a plurality of data pads DP for electrically connecting the plurality of data link lines DLL and the data driver circuit DDC are arranged. That is, each of the plurality of data pads DP is electrically connected to a corresponding one of the plurality of data link lines DLL.

[0318] Referring to Figures 15 to 17, in the non-display area N / A of the display panel DISP, a plurality of driving touch pads TPd for electrically connecting a plurality of driving touch lines TLd to the touch sensing circuit TSC are provided, and a plurality of sensing touch pads TPs for electrically connecting a plurality of sensing touch lines TLs to the touch sensing circuit TSC are provided. That is, each of the plurality of sensing touch pads TPs is electrically connected to a corresponding one of the plurality of sensing touch lines TLs. Similarly, each of the plurality of driving touch pads TPd is electrically connected to a corresponding one of the plurality of driving touch lines TLd. Compared with the plurality of sensing touch pads TPs, the plurality of driving touch pads TPd are disposed adjacent to the plurality of data pads DP. That is, the plurality of driving touch pads TPd are arranged closer to the plurality of data pads DP than the plurality of sensing touch pads TPs are arranged relative to the plurality of data pads DP.

[0319] According to the above description, a pad structure capable of protecting a plurality of sensing touch lines TLs from data noise can be provided.

[0320] Referring to Figure 18 , a plurality of pixel electrodes E1 can be provided in the display area A / A of the display panel DISP, a common electrode E2 can be provided on the plurality of pixel electrodes E1, and an encapsulation layer ENCAP can be provided on the common electrode E2.

[0321] A plurality of driving touch electrode lines DTEL and a plurality of sensing touch electrode lines STEL corresponding to the plurality of touch electrodes TE can be arranged on the encapsulation layer ENCAP.

[0322] As described above, by forming the touch electrode TE on the encapsulation layer ENCAP, the touch electrode TE can be formed without greatly affecting the display performance and the formation of the display-related layers.

[0323] In the display area A / A of the display panel DISP, the common electrode E2 can be provided between the plurality of driving touch electrode lines DTEL and the plurality of data lines DL.

[0324] In the display area A / A of the display panel DISP, the common electrode E2 can be provided between the plurality of sensing touch electrode lines STEL and the plurality of data lines DL.

[0325] Noise generated in the data lines DL can be prevented (shielded) from flowing into the plurality of sensing touch electrode lines STEL and the plurality of driving touch electrode lines DTEL in the display area A / A.

[0326] Referring to Figure 18, the non-display area N / A of the display panel DISP may include an area where a common electrode E2 is formed (an area within the cathode formation area C / A). In other words, multiple driving touch lines TLd may overlap with a part of the common electrode E2. Similarly, multiple sensing touch lines TLs may overlap with different parts of the common electrode E2.

[0327] The non-display area N / A of the display panel DISP may include an area where the common electrode E2 is not formed (an area outside the cathode formation area C / A).

[0328] Refer to Figure 18 , in an area where the common electrode E2 is not formed, at least one of the multiple data link lines DLL may overlap with at least one of the multiple driving touch lines TLd.

[0329] The non-display area N / A of the display panel DISP may include an area where the common electrode E2 is not formed.

[0330] In an area where the common electrode is not formed, the multiple sensing touch lines TLs may not overlap with any of the multiple data link lines DLL.

[0331] Figures 19 to 21 are diagrams each showing a case where an internal virtual metal exists in a grid-type touch electrode TE area in a display panel according to an embodiment of the present disclosure.

[0332] Refer to Figures 19 to 21 , in an area of all or some of the multiple touch electrodes TE provided on the touch panel TSP, an electrode metal EM patterned in a grid form and at least one disconnected internal virtual metal INDUM may be provided.

[0333] In addition, when there is no at least one internal virtual metal INDUM in the area of a touch electrode TE and only the electrode metal EM exists in a grid form, a visibility problem may occur, which causes the outline of the electrode metal EM to be visible on the screen. However, by forming the internal virtual metal INDUM in the touch electrode area, the visibility problem that may occur when a touch electrode TE is patterned in a grid form can be prevented.

[0334] The electrode metal EM is patterned in a grid form, and then the electrode metal EM patterned in a grid form is cut to form a touch electrode (a cutting process for touch electrode formation).

[0335] Thereafter, the electrode metal EM patterned in a grid form in an area of a touch electrode is cut into a predetermined pattern (a cutting process for internal virtual metal formation) to form an internal virtual metal INDUM disconnected from the electrode metal EM.

[0336] When forming the internal virtual metal INDUM as described above, the internal virtual metal INDUM is a part disconnected from the electrode metal EM through a cutting process.

[0337] Therefore, at least one internal virtual metal INDUM in the touch electrode region can be disposed in the same layer as the electrode metal EM corresponding to each of the plurality of touch electrodes TE, and can be made of the same material as the electrode metal EM.

[0338] According to the above method of forming the internal virtual metal INDUM, there is an advantage that the internal virtual metal INDUM can be formed more easily and the electrode metal EM and the virtual metal DM can be formed as a single layer.

[0339] Figure 20 is a diagram showing Figure 19 the electrode metal EM corresponding to the touch electrode TE in which the internal virtual metal INDUM is omitted, Figure 15 which is a diagram showing in a simplified form Figure 14 of

[0340] Referring to Figure 20 and Figure 21 , it can be seen that the size of the electrode metal to which a driving signal is applied or from which a sensing signal is received in one touch electrode TE reduces the space IDA occupied by the internal virtual metal INDUM.

[0341] According to the above-described embodiments of the present disclosure, a touch display device and a display panel DISP can be provided, which have a touch sensor structure that resists noise of display driving electrodes / wires such as data lines DL.

[0342] According to the embodiments of the present disclosure, a touch display device and a display panel DISP can be provided, which have a structure that enables the sensing touch lines TLs to be unaffected by noise even when noise of display driving electrodes / wires such as data lines DL occurs.

[0343] The above description and drawings provide examples of the technical concept of the present disclosure for illustrative purposes only. Those of ordinary skill in the art to which the present disclosure pertains will recognize that various formal modifications and changes can be made without departing from the basic features of the present disclosure, such as combinations, separations, permutations, and changes of configurations. Therefore, the embodiments disclosed in the present disclosure are intended to show the scope of the technical concept of the present disclosure, and the scope of the present disclosure is not limited by the embodiments. The scope of the present disclosure should be interpreted based on the appended claims, such that all technical concepts within the equivalent scope of the claims belong to the present disclosure.

[0344] The following list provides aspects of the present disclosure and forms part of the specification. These aspects may be combined in any compatible combination except those explicitly stated. These aspects may also be combined with any compatible features described herein.

[0345] Aspect 1. A touch display device, the touch display device comprising:

[0346] A display panel, which includes a display area and a non-display area, wherein, in the display area, a plurality of data lines, a plurality of gate lines, a plurality of driving touch electrode lines, and a plurality of sensing touch electrode lines are arranged in the display area, and wherein, in the non-display area, a plurality of data link wirings from which the plurality of driving touch lines extend or to which the plurality of driving touch lines are connected, a plurality of driving touch wirings connected to the plurality of driving touch electrode lines, and a plurality of sensing touch wirings connected to the plurality of sensing touch electrode lines are arranged;

[0347] A data driving circuit configured to drive the plurality of data lines;

[0348] A gate driving circuit configured to drive the plurality of gate lines; and

[0349] A touch sensing circuit configured to output a driving signal to at least one of the plurality of driving touch wirings and receive a sensing signal from at least one of the plurality of sensing touch wirings,

[0350] wherein, in the non-display area of the display panel, at least one of the plurality of data link wirings overlaps at least one of the plurality of driving touch wirings.

[0351] Aspect 2. The touch display device according to Aspect 1, wherein, in the non-display area of the display panel, the plurality of sensing touch wirings do not overlap the plurality of data link wirings.

[0352] Aspect 3. The touch display device according to Aspect 1, wherein the non-display area of the display panel includes a region where there is no voltage application electrode between at least one of the plurality of driving touch wirings and at least one of the plurality of data link wirings.

[0353] Aspect 4. The touch display device according to Aspect 1, wherein the plurality of driving touch electrode lines are arranged parallel to the plurality of data lines, and the plurality of sensing touch electrode lines are arranged parallel to the plurality of gate lines.

[0354] Aspect 5. The touch display device according to Aspect 1, wherein one end of each of the plurality of driving touch electrode lines is connected to a driving touch wiring, or both ends of each of the plurality of driving touch electrode lines are connected to a driving touch wiring, and

[0355] One end of each of the plurality of sensing touch electrode lines is connected to the sensing touch wiring, or both ends of each of the plurality of sensing touch electrode lines are connected to the sensing touch wiring.

[0356] Aspect 6. The touch display device according to aspect 1, wherein each of the plurality of driving touch electrode lines includes a plurality of driving touch electrodes integrated or electrically connected, and

[0357] each of the plurality of sensing touch electrode lines includes a plurality of sensing electrodes integrated or electrically connected to each other.

[0358] Aspect 7. The touch display device according to aspect 1, wherein in a non-display area of the display panel,

[0359] a plurality of data pads are arranged to electrically connect the plurality of data link wirings and the data driving circuit to each other,

[0360] a plurality of driving touch pads are arranged to electrically connect the plurality of driving touch wirings and the touch sensing circuit to each other,

[0361] a plurality of sensing touch pads are arranged to electrically connect the plurality of sensing touch wirings and the touch sensing circuit to each other, and

[0362] the plurality of driving touch pads are arranged adjacent to the plurality of data pads as compared with the plurality of sensing touch pads.

[0363] Aspect 8. The touch display device according to aspect 1, wherein in a display area of the display panel, a plurality of pixel electrodes are arranged, a common electrode is arranged on the plurality of pixel electrodes, an encapsulation layer is arranged on the common electrode, and

[0364] the plurality of driving touch electrode lines and the plurality of sensing touch electrode lines are placed on the encapsulation layer.

[0365] Aspect 9. The touch display device according to aspect 8, wherein in a display area of the display panel,

[0366] the common electrode is arranged between the plurality of driving touch electrode lines and the plurality of data lines, and

[0367] the common electrode is arranged between the plurality of sensing touch electrode lines and the plurality of data lines.

[0368] Aspect 10. The touch display device according to aspect 8, wherein a non-display area of the display panel includes an area where the common electrode is not formed, and

[0369] In a region where a common electrode is not formed, at least one of the plurality of data link wirings overlaps at least one of the plurality of driving touch wirings.

[0370] Aspect 11. The touch display device according to aspect 6, wherein a non-display region of the display panel includes a region where a common electrode is not formed, and

[0371] in a region where a common electrode is not formed, the plurality of sensing touch wirings do not overlap with the plurality of data link wirings.

[0372] Aspect 12. A touch display device, the touch display device comprising:

[0373] A display panel including a display region and a non-display region, wherein, in the display region, a plurality of data lines, a plurality of gate lines, a plurality of driving touch electrode lines, and a plurality of sensing touch electrode lines are arranged in the display region, and wherein, in the non-display region, the plurality of driving touch lines from which the plurality of driving touch lines extend or to which the plurality of driving touch lines are connected, a plurality of driving touch wirings connected to the plurality of driving touch electrode lines, and a plurality of sensing touch wirings connected to the plurality of sensing touch electrode lines are arranged;

[0374] A data driving circuit configured to drive the plurality of data lines;

[0375] A gate driving circuit configured to drive the plurality of gate lines; and

[0376] A touch sensing circuit configured to output a driving signal to at least one of the plurality of driving touch wirings and receive a sensing signal from at least one of the plurality of sensing touch wirings,

[0377] in a non-display region of the display panel, the plurality of sensing touch wirings do not overlap with the plurality of data link wirings.

[0378] Aspect 13. The touch display device according to aspect 12, wherein, in a non-display region of the display panel, at least one of the plurality of data link wirings overlaps at least one of the plurality of driving touch wirings.

[0379] Aspect 14. A display panel, the display panel comprising:

[0380] A plurality of data lines arranged in a display region;

[0381] A plurality of data link wirings, the plurality of data lines extending from the plurality of data link wirings or the plurality of data lines being connected to the plurality of data link wirings;

[0382] A plurality of driving touch electrode lines and a plurality of sensing touch electrode lines arranged in a display area;

[0383] A plurality of driving touch wirings connected to the plurality of driving touch electrode lines; and

[0384] A plurality of sensing touch wirings connected to the plurality of sensing touch electrode lines,

[0385] wherein the plurality of data link wirings, the plurality of driving touch wirings, and the plurality of sensing touch wirings are arranged in a non-display area that is an area outside the display area, and

[0386] in the non-display area, at least one of the plurality of data link wirings overlaps at least one of the plurality of driving touch wirings.

[0387] Aspect 15. A display panel, the display panel comprising:

[0388] A plurality of data lines arranged in a display area;

[0389] A plurality of data link wirings, the plurality of data lines extending from the plurality of data link wirings or the plurality of data lines being connected to the plurality of data link wirings;

[0390] A plurality of driving touch electrode lines and a plurality of sensing touch electrode lines arranged in a display area;

[0391] A plurality of driving touch wirings connected to the plurality of driving touch electrode lines; and

[0392] A plurality of sensing touch wirings connected to the plurality of sensing touch electrode lines,

[0393] wherein the plurality of data link wirings, the plurality of driving touch wirings, and the plurality of sensing touch wirings are arranged in a non-display area that is an area outside the display area, and

[0394] in the non-display area of the display panel, the plurality of sensing touch wirings do not overlap the plurality of data link wirings.

Claims

1. A display device, the display device comprising: A display area and a non-display area; A light-emitting element, the light-emitting element including a first electrode, a second electrode, and a light-emitting layer disposed between the first electrode and the second electrode; A plurality of gate lines, the plurality of gate lines being provided in the display area and arranged in a first direction; A plurality of data lines, the plurality of data lines being provided in the display area and arranged in a second direction different from the first direction; A plurality of data link lines, the plurality of data link lines being connected to the plurality of data lines; A encapsulation layer, the encapsulation layer being located on the second electrode, the encapsulation layer including at least one organic layer and at least one inorganic layer; A touch sensor, the touch sensor being located on the encapsulation layer, the touch sensor including a plurality of driving touch electrodes and a plurality of sensing touch electrodes, the plurality of driving touch electrodes being arranged in the second direction same as the plurality of data lines, and the plurality of sensing touch electrodes being arranged in the first direction same as the plurality of gate lines; A plurality of driving touch lines, the plurality of driving touch lines being connected to the plurality of driving touch electrodes, the plurality of driving touch lines overlapping a first portion of the second electrode in the non-display area; And A plurality of sensing touch lines, the plurality of sensing touch lines being connected to the plurality of sensing touch electrodes, the plurality of sensing touch lines overlapping a second portion of the second electrode in the non-display area, Wherein, at least one of the plurality of driving touch lines overlaps at least one of the plurality of data link lines, Wherein, in an area of the display device where the second electrode is not formed, the plurality of sensing touch lines do not overlap the plurality of data link lines.

2. The display device according to claim 1, wherein, A driving signal is supplied to the plurality of driving touch electrodes through the plurality of driving touch lines; And Wherein, a sensing signal is received from the plurality of sensing touch electrodes through the plurality of sensing touch lines.

3. The display device according to claim 1, wherein, A dam is provided in the non-display area, and Wherein, at least one of the plurality of driving touch lines overlaps the at least one of the plurality of data link lines and the dam in the non-display area.

4. The display device according to claim 1, wherein, A plurality of data pads are provided in the non-display area and electrically connected to the plurality of data link lines, Wherein, a plurality of driving touch pads are provided in the non-display area and electrically connected to the plurality of driving touch lines, and Wherein, a plurality of sensing touch pads are provided in the non-display area and electrically connected to the plurality of sensing touch lines.

5. The display device according to claim 4, wherein, In the non-display area, the plurality of sensing touch lines are arranged outside the plurality of driving touch lines and the plurality of data link lines.

6. The display device according to claim 4, wherein, In the non-display area, the plurality of sensing touch pads are arranged outside the plurality of driving touch pads and the plurality of data pads.

7. The display device according to claim 6, wherein, The plurality of driving touch pads include a first group arranged adjacent to a first side of the plurality of data pads and a second group arranged adjacent to a second side of the plurality of data pads, and the first group of the plurality of driving touch pads is located between the plurality of sensing touch pads and the plurality of data pads.

8. The display device according to claim 1, wherein, At least a part of the first part of the second electrode in the non-display area overlaps with the plurality of driving touch lines and the plurality of data link lines.

9. The display device according to claim 1, wherein, The first electrode is an anode, and the second electrode is a cathode.

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