DISPLAY DEVICE AND DISPLAY PANEL

Abstract

A display device (100) and a display panel (110) can comprise: a substrate (111) comprising: a display area (DA) having multiple subpixels (SP), and a non-display area (NDA) having a pad area (PA) spaced at a distance from the display area (DA) in a first direction; a first sensor electrode (SE1) in the display area (DA) extending in a second direction intersecting the first direction; a second sensor electrode (SE2) in the display area (DA) extending in the second direction; a first pad (PD1) in the pad area (PA); a second pad (PD2) in the pad area (PA); a first trace (TL1) electrically connecting the first sensor electrode (SE1) and the first pad (PD1); and a second trace (TL2) electrically connecting the second sensor electrode (SE2) and the second pad (PD2). The second sensor electrode (SE2) can be located closer to the pad area (PA) than the first sensor electrode (SE1).The first trace line (TL1) overlaps the second sensor electrode (SE2), and the second trace line (TL2) may have a first meander section (MP1).

Description

CROSS REFERENCE TO RELATED APPLICATIONThis application claims priority to Republic-Korea Patent Application No. 10-2023-0083694, filed Jun. 28, 2023.BACKGROUNDREGIONEmbodiments of the disclosure relate to a display device and a display panel.DESCRIPTION OF THE RELATED ARTAs information society has evolved, there is an increasing demand for display devices for displaying images in various forms. Various display devices such as liquid crystal display devices and organic light emitting display devices are used. Among other things, touch display devices provide an input scheme that allows users to input information or commands more easily and intuitively and more conveniently without requiring buttons, keyboard, mouse, or other typical input means.For various reasons, such as aesthetic and product use, intensive research and development efforts have recently been made to reduce the size of the aperture (non-display area). However, there are significant restrictions on reducing the size of the aperture due to the inevitable placement of various components (e.g., various lines or patterns) in the aperture.OVERVIEWEmbodiments of the disclosure may provide a display device and a display panel having a touch sensor structure that enables a narrow aperture.Embodiments of the disclosure may provide a display device and a display panel including a touch sensor that provides high touch sensitivity while providing a narrow aperture.Embodiments of the disclosure may provide a display device and a display panel including a touch sensor that may reduce noise between the sensor electrodes. Various embodiments of the disclosure provide a display device and display panels according to the independent claims. Further embodiments are described in the dependent claims.In an embodiment, a display panel includes: a substrate including: a display region including a plurality of sub-pixels, and a non-display region including a pad region spaced apart from the display region in a first direction; first to third sensor electrodes disposed in the display region such that the second sensor electrode is closer to the pad region than the first sensor electrode, each of the first to third sensor electrodes extending in a second direction crossing the first direction; a fourth sensor electrode in the display region, the fourth sensor electrode extending along the first direction such that the fourth sensor electrode crosses the first to third sensor electrodes; first to fourth pads in the pad region; a first trace line electrically connecting the first sensor electrode and the first pad, the first trace line overlapping the second sensor electrode; a second trace line electrically connecting the second sensor electrode and the second pad, the second trace line including a first meander portion including at least a part extending in the first direction and at least a part extending in the second direction in the display area; a third trace line electrically connecting the third sensor electrode and the third pad; and a fourth trace line electrically connecting the fourth sensor electrode and the fourth pad.In an embodiment, a display panel includes: a substrate including: a display region including a plurality of sub-pixels, and a non-display region including a pad region spaced apart from the display region in a first direction; a light emitting element in the display region of the substrate; an encapsulating layer on the light emitting element; first to third sensor electrodes on the encapsulating layer in the display region, each of the first to third sensor electrodes extending in a second direction crossing the first direction; a fourth sensor electrode on the encapsulating layer in the display region, the fourth sensor electrode crossing the first to third sensor electrodes; first to fourth pads in the pad region; a first trace line extending over the display region in the first direction, the first trace line electrically connecting the first sensor electrode and the first pad; a second trace line extending across the display area in the first direction, the second trace line electrically connecting the second sensor electrode and the second pad; a third trace line extending across the display area in the first direction, the third trace line electrically connecting the third sensor electrode and the third pad; and a fourth trace line electrically connecting the fourth sensor electrode and the fourth pad, wherein the encapsulation layer includes: a first inclined surface at a first portion of the non-display area that is adjacent to a first side of the display area that extends in the second direction, a second inclined surface at a second portion of the non-display area that is adjacent to a second side of the display area that extends in the first direction, a third inclined surface at a third portion of the non-display area, adjoining a third side of the display area extending in the second direction and spaced apart from the first side of the display area in the first direction, and a fourth inclined surface at a fourth part of the non-display area adjoining a fourth side of the display area extending in the first direction and spaced apart from the second side of the display area in the second direction, wherein no metal is disposed on the second inclined surface and the fourth inclined surface, and wherein the first trace, the second trace, the third trace, and the fourth trace overlap the first inclined surface without overlapping the second inclined surface, the third inclined surface, and the fourth inclined surface.In an embodiment, a display panel includes: a substrate including: a display area including a plurality of sub-pixels and a non-display area including a pad area spaced apart from the display area in a first direction; a first sensor electrode in the display area, the first sensor electrode extending in a second direction crossing the first direction; a second sensor electrode in the display area, the second sensor electrode extending in the second direction and being closer to the pad area than the first sensor electrode; a first trace line extending from the pad area to the first sensor electrode such that the first trace line overlaps the first sensor electrode and the second sensor electrode; and a second trace line extending from the pad portion to the second sensor electrode such that the second trace line overlaps the second sensor electrode without overlapping the first sensor electrode, wherein a total length of the second trace line is substantially the same as a total length of the first trace line.According to an embodiment of the disclosure, a display device and a display panel may be provided having a touch sensor structure that enables a narrow aperture.According to an embodiment of the disclosure, a display device and a display panel may be provided that include a touch sensor having high touch sensitivity and a narrow aperture at the same time.According to an embodiment of the disclosure, a display device and a display panel including a touch sensor that can reduce noise between sensor electrodes may be provided.According to embodiments of the disclosure, the use of materials corresponding to the reduced aperture size may be reduced because the aperture size is significantly reduced. This may help reduce the weight of the display device.BRIEF DESCRIPTION OF THE DRAWINGSThe above and other objects, features and advantages of the disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. 1 is a view showing a system configuration of a display device according to embodiments of the disclosure; FIG. 2 illustrates a display panel according to an embodiment of the disclosure; FIGS. 3, 4, 5, 6, and 7 are plan views illustrating a touch sensor provided in a display panel according to embodiments of the disclosure; FIG. 8 illustrates, by way of example, in detail a portion of a touch sensor included in a display panel according to embodiments of the disclosure; FIG. 9 shows a unit sensor in a touch sensor provided in a display panel according to embodiments of the disclosure; FIG. 10A shows a stack structure of a sensor electrode and a bridge in a touch sensor included in a display panel according to embodiments of the disclosure; FIG. 10B shows a stack structure of a sensor electrode and a trace line in a touch sensor provided in a display panel according to embodiments of the disclosure; FIGS. 11, 12, and 13 are plan views showing examples of a trace structure in a touch sensor provided in a display panel according to embodiments of the disclosure; FIG. 14 illustrates a touch driver circuit according to embodiments of the disclosure; FIG. 15 is a plan view showing a substrate and an encapsulation layer according to embodiments of the disclosure; and FIGS. 16, 17 and 18 are cross-sectional views showing principal points of a display panel according to embodiments of the disclosure.DETAILED DESCRIPTIONHereinafter, embodiments of the disclosure will be described in detail with reference to the accompanying drawings. The same or substantially the same reference numerals are used to refer to the same or substantially the same elements throughout the specification and the drawings. If the subject disclosure becomes unclear thereby, the details of the related art or the functions may be skipped. When a component "comprises", "has", or "is formed from" another component, the component may comprise other components unless the component "comprises", has", or is formed from the other component "only". As used herein, the singular forms "a", "an", and "the / s" are intended to include the plural forms as well, unless the context clearly indicates otherwise.Terms such as "first", "second", "A", "B", "(a)", and "(b)" may be used to describe the components of the disclosure. These labels are provided only to distinguish one component from another, and the nature, order, or number of components is not limited by the labels in terms of order or sequence.When two or more components are referred to as "connected", "coupled", or "linked" in describing the positional relationship between components, the two or more components may be directly "connected", "coupled", or "linked", or another component may be interposed therebetween. In this case, the other component may be included in one or more of the two or more components that are "connected", "coupled", or "linked" to each other.When terms such as "after", "next", "after", and "before" are used to describe the time sequence with respect to components, operating methods, and manufacturing methods, it may have a non-continuous relationship unless the term "immediately" or "directly" is used.When a numerical value or corresponding information (e.g., fill level, etc.) for a component is mentioned, this may be interpreted as having the numerical value or corresponding information a margin of error that may be caused by various factors (e.g., process factors, internal or external impacts, noise, etc.), although not explicitly indicated.Hereinafter, various embodiments of the disclosure will be described in detail with reference to the accompanying drawings.FIG. 1 is a view showing a system configuration of a display device 100 according to embodiments of the disclosure.Referring to FIG. 1, a display device 100 according to embodiments of the disclosure may include a display panel 110 and display driving circuits as components for displaying images. The display control circuits are circuits for driving the display panel 110, and may include a data driving circuit 120, a gate driving circuit 130, and a display controller 140.The display panel 110 may include a substrate 111, a plurality of sub-pixels SP disposed on the substrate 111, and various signal lines disposed on the substrate 111 to drive the plurality of sub-pixels SP.The substrate 111 may include a display area DA in which the plurality of subpixels SP are arranged, and a non-display area NDA arranged in a first direction from the display area DA.The non-display area NDA may include a pad area for connection to the data driving circuit 120. For example, the pad region may be disposed in the display region DA in the first direction.The non-display area NDA may be only as large as the pad area, for example. In other words, the non-display area NDA of the display panel 110 according to embodiments of the disclosure may be very small in size. For example, although the display panel 110 includes the non-display area NDA, the boundary area between the display area and the non-display area NDA may be bent, so that the non-display area NDA may be disposed below the display area DA. In this case, the non-display area NDA displayed to the user when the user views the display area DA from the front may not be changed or may be changed only slightly.The display device 100 according to embodiments of the disclosure may be a liquid crystal display device or a self-emitting display device in which the display panel 110 emits light by itself. When the display device 100 according to embodiments of the disclosure is a self-emission display device, each of the plurality of subpixels SP may include a light emitting element.For example, the display device 100 according to embodiments of the disclosure may be an organic light emitting display device in which the light emitting element is implemented as an organic light emitting diode (OLED). As another example, the display device 100 according to embodiments of the disclosure may be an inorganic light emitting display device in which the light emitting element is configured as an inorganic material-based light emitting diode. As another example, the display device 100 according to embodiments of the disclosure may be a quantum dot display device in which the light emitting element is implemented as a quantum dot that is a self-emitting semiconductor crystal.The structure of each of the plurality of subpixels SP may vary depending on the type of the display device 100. For example, when the display device 100 is a self-emitting display device in which the subpixels SP emit light by themselves, each subpixel SP may include a light emitting element that emits light by themselves, one or more transistors, and one or more capacitors.Various types of signal lines may include, for example, a plurality of data lines DL for transmitting data signals (also referred to as data voltages or image signals) and a plurality of gate lines GL for transmitting gate signals (also referred to as scan signals).The plurality of data lines DL and the plurality of gate lines GL may cross each other. Each of the plurality of data lines DL may be arranged to extend in the first direction. Each of the plurality of gate lines GL may be disposed to extend in the second direction. In this case, the first direction can be a column direction and the second direction can be a row direction. The first direction may be the row direction and the second direction may be the column direction. For convenience of description, an example in which each of the plurality of data lines DL is arranged in the column direction and each of the plurality of gate lines GL is arranged in the row direction, and the first direction is the column direction and the second direction is the row direction will be described below.The data driving circuit 120 is a circuit for driving the plurality of data lines DL, and may output data signals to the plurality of data lines DL.The data driving circuit 120 may receive digital image data DATA from the display controller 140, and may convert the received image data DATA into analog data signals and output it to the plurality of data lines DL.The data driving circuit 120 may be connected to the display panel 110 by a tape automated bonding (TAB) method, or may be connected to a connection pad of the display panel 110 by a chip-on-glass (COG) or chip-on-panel (COP) method, or may be implemented by a chip-on-sheet (COF) method, and may be connected to the display panel 110, for example.The data driving circuit 120 may be disposed outside the display area DA of the display panel 110, but alternatively, the data driving circuit 120 may be disposed in the display area DA of the display panel 110.The gate drive circuit 130 is a circuit for driving the plurality of gate lines GL, and may output gate signals to the plurality of gate lines GL.The gate driving circuit 130 may receive a first gate voltage corresponding to a turn-on level voltage and a second gate voltage corresponding to a turn-off level voltage together with various gate driving control signals GCS, generate gate signals, and supply the generated gate signals to the plurality of gate lines GL.In the display device 100 according to embodiments of the disclosure, the gate driving circuit 130 may be disposed to overlap the display area DA of the display panel 110. For example, the gate driving circuit 130 may be disposed in the entire display area DA or may be disposed only in a portion (e.g., two opposite sides) of the display area DA. When the gate driving circuit 130 is disposed to overlap the display area DA, the gate driving circuit 130 may be disposed not to overlap the subpixels SP, or may be disposed to overlap all or some of the subpixels SP.In the display device 100 according to embodiments of the disclosure, the gate driving circuit 130 may be embedded in the display panel 110 as a gate-in-panel (GIP) type. When the gate driving circuit 130 is of a gate-in-panel type, the gate driving circuit 130 may be formed on the substrate 111 of the display panel 110 during the manufacturing process of the display panel 110.The display controller 140 is a device for controlling the data driving circuit 120 and the gate driving circuit 130, and may control the driving timings for the plurality of data lines DL and the driving timings for the plurality of gate lines GL.The display controller 140 may supply a data driving control signal DCS for data driving control to the data driving circuit 120, and a gate driving control signal GCS for gate driving control to the gate driving circuit 130.The display controller 140 may receive input image data from the host system 180 and provide image data DATA to the data driving circuit 120 based on the input image data.The display controller 140 may be implemented as a component separate from the data driving circuit 120, or the display controller 140 and the data driving circuit 120 may be integrated into an integrated circuit (IC).The display device 140 may be a timer controller used in the typical display technique, a controller that can perform other control functions besides the functions of the timer controller, or a controller other than the timer controller, or a circuit in the controller. The display controller 140 may be implemented in the form of various circuits or electronic components, for example, an integrated circuit (IC), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a processor.The display controller 140 may be mounted on a printed circuit board or a flexible printed circuit board and electrically connected to the data driving circuit 120 and the gate driving circuit 130 via the printed circuit board or the flexible printed circuit board.The display controller 140 may transmit or receive signals to or from the data driver circuit 120 according to one or more predetermined interfaces. The interface may include, for example, a low voltage differential signaling (LVDS) interface, an embedded clock point point interface (EPI), and a serial peripheral interface (SPI).Meanwhile, the display device 100 according to embodiments of the disclosure may include a touch sensor and a touch sensing circuit 150 to further provide a touch sensing function and an image display function.The touch sensing circuit 150 may detect the presence of a touch (finger touch or pen touch) by a touch object such as a finger or pen 10, or a touch position by sensing the touch sensor.The touch sensing circuit 150 may include, for example, a touch driving circuit 160 that drives and scans the touch sensor and generates and outputs touch sensing data, and a touch controller 170 that may recognize an occurrence of a touch or the position of the touch using touch sensing data.The touch sensor may include a plurality of sensor electrodes. Here, the touch sensor may also be referred to as a touch panel or a touch panel (TSP).The touch sensor may be an external type in which it is located outside the display panel 110 or an internal type in which it is located inside the display panel 110.When the touch sensor is of an external type, the touch sensor and the display panel 110 may be separately manufactured or combined during an assembly process. The external type touch sensor may include a substrate and a plurality of sensor electrodes on the substrate.When the touch sensor is of an internal type, a plurality of sensor electrodes may be formed together with various patterns for driving the display in the display panel 110 during the manufacturing process of the display panel 110.The touch driving circuit 160 may provide a touch driving signal to at least one of the plurality of sensor electrodes and may scan at least one of the plurality of sensor electrodes to generate touch sensing data.The touch sensing circuit 150 may perform touch sensing in a self-capacitance sensing scheme or a mutual capacitance sensing scheme.When the touch sensing circuit 150 performs touch sensing according to the self-capacitance sensing scheme, the touch sensing circuit 150 may perform touch sensing based on the capacitance between each sensor electrode and the touch object (e.g., finger or pen 10). According to the self-capacitance detection scheme, each of the plurality of sensor electrodes may serve as both a transmission sensor electrode and a reception sensor electrode. The touch driving circuit 160 may drive all or some of the plurality of sensor electrodes and scan all or some of the plurality of sensor electrodes.When the touch sensing circuit 150 performs the touch sensing according to the mutual capacitance sensing scheme, the touch sensing circuit 150 may perform the touch sensing based on the capacitance between the plurality of sensor electrodes. According to the mutual capacitance detection scheme, the plurality of sensor electrodes may be divided into a plurality of transmission sensor electrodes and a plurality of reception sensor electrodes. The touch driving circuit 160 may drive the plurality of transmission sensor electrodes and the plurality of reception sensor electrodes.Hereinafter, the transmission sensor electrode is also referred to as a driving sensor electrode, and the reception sensor electrode is also referred to as a detection sensor electrode.The touch driving circuit 160 and the touch controller 170 included in the touch sensing circuit 150 may be implemented as separate devices or as a single device.The touch driver circuit 160 and the data driver circuit 120 may be implemented as separate devices or as a single device. For example, the touch driver circuit 160 and the data driver circuit 120 may be configured as a single integrated circuit.The display device 100 may further include a power supply circuit to supply various types of power to the display driver integrated circuit and / or the touch sensing circuit 150.The display device 100 according to embodiments of the disclosure may be a mobile terminal such as a smartphone or a tablet, or a monitor or a television (TV) in various sizes, but may be, but is not limited to, a display in various types and various sizes capable of displaying information or images.FIG. 2 illustrates a display panel 110 according to an embodiment of the disclosure.Referring to FIG. 2, the display panel 110 may include a substrate 111 and a plurality of sub-pixels SP and an encapsulation layer 200 on the substrate 111. Here, the encapsulation layer 200 may also be referred to as an encapsulation substrate or as an encapsulation portion.Referring to FIG. 2, when the display device 100 according to embodiments of the disclosure is a self-lighting display device, each of the plurality of subpixels SP may include a light emitting element ED and a subpixel circuit unit SPC for driving the light emitting element ED.Referring to FIG. 2, the subpixel circuit unit SPC may include a plurality of pixel driving transistors for driving the light emitting element ED and at least one capacitor.The plurality of pixel driving transistors may include a first transistor T 1 that is a driving transistor for driving the light emitting element ED and a second transistor T 2 for transmitting the data signal VDATA to the second node N 2 of the first transistor T 1.The at least one capacitor may include a storage capacitor Cst for maintaining a constant voltage during a frame.In order to drive the subpixel SP, a data signal VDATA may be applied to the subpixel SP as an image signal and a scan signal SC may be applied to the subpixel SP as a gate signal. Furthermore, for driving the subpixel SP, a common pixel driving voltage having the first driving voltage VDD and the second driving voltage VSS may be applied to the subpixel SP.The light emitting element ED may include a pixel electrode PE, an element intermediate layer EL, and a common electrode CE. The pixel electrode PE may be an electrode disposed in each subpixel SP, and the common electrode CE may be an electrode disposed in common in all subpixels SP. The element intermediate layer EL may be a layer disposed between the pixel electrode PE and the common electrode CE, and may include an emission layer (EML).When the light emitting element ED is an organic light emitting element, the element intermediate layer EL may include an emission layer (EML), a first common layer between the anode and the emission layer, and a second common layer between the emission layer and the cathode. The emission layer may be arranged for each subpixel SP, and the first and second common layers may be arranged in common in the plurality of subpixels SP. Here, the anode may be the pixel electrode PE or the common electrode CE, and the cathode may be the common electrode CE or the pixel electrode PE.The common electrode CE may be electrically connected to the second drive voltage line VSSL, for example. The second drive voltage VSS, which is one kind of the common pixel drive voltage, may be applied to the common electrode CE via the second drive voltage line VSSL. The pixel electrode PE may be electrically connected to the first node N 1 of the first transistor T 1 of each subpixel SP.For example, the pixel electrode PE may be an anode, and the common electrode CE may be a cathode. Conversely, the pixel electrode PE may be a cathode and the common electrode CE may be an anode. For convenience of description, it is hereinafter assumed that the pixel electrode PE is an anode and the common electrode CE is a cathode.Each of the light emitting elements ED may include portions in which the pixel electrode PE, the element intermediate layer EL, and the common electrode CE overlap each other. A predetermined light emitting region may be formed by each light emitting element ED. For example, the light emission region of each light emission element ED may include a region where the pixel electrode PE, the element intermediate layer EL, and the common electrode CE overlap each other.The light emitting element ED may be, for example, an organic light emitting diode (OLED), an inorganic light emitting diode (LED), or a quantum dot light emitting element.The first transistor T 1 may be a driving transistor for supplying a driving current to the light emitting element ED. The first transistor T 1 may be connected between the first driving voltage line VDDL and the light emitting element ED.The first transistor T 1 may include a first node N 1 electrically connected to the light emitting element ED, a second node N 2 to which the data signal VDATA may be applied, and a third node N 3 to which the driving voltage VDD is applied from the driving voltage line VDDL.In the first transistor T 1, the second node N 2 may be the gate node, the first node N 1 may be the source node or the drain node, and the third node N 3 may be the drain node or the source node. Hereinafter, for convenience, it will be described that in the first transistor T 1, the second node N 2 may be the gate node, the first node N 1 may be the source node, and the third node N 3 may be the drain node.The second transistor T 2 may be a switching transistor for transmitting a data signal VDATA, which is an image signal, to the second node N 2, which is the gate node of the first transistor T 1, which is a driving transistor.The second transistor T 2 may be controlled to be turned on and off by the scan signal SC, which is a gate signal applied via the scan line SCL, which is a type of the gate line GL, to control the electrical connection between the second node N 2 of the first transistor T 1 and the data line DL. The drain electrode or the source electrode of the second transistor T 2 may be electrically connected to the data line DL, the source electrode or the drain electrode of the second transistor T 2 may be electrically connected to the second node N 2 of the first transistor T 1, and the gate electrode of the second transistor T 2 may be electrically connected to the scan line SCL.The storage capacitor Cst may be electrically connected between the first node N 1 and the second node N 2 of the first transistor T 1. The storage capacitor Cst may include a first capacitor electrode electrically connected to the first node N 1 of the first transistor T 1 or corresponding to the first node N 1 of the first transistor T 1, and a second capacitor electrode electrically connected to the second node N 2 of the first transistor T 1 or corresponding to the second node N 2 of the first transistor T 1.Each of the first transistor T 1 and the second transistor T 2 may be an n-type transistor or a p-type transistor.At least a portion of the subpixel circuit unit SPC may overlap at least a portion of the light emitting element ED in a vertical direction. Alternatively, the subpixel circuit unit SPC may not overlap the light emitting element ED in the vertical direction.As shown in FIG. 2, the subpixel circuit unit SPC may have a 2T (transistor)1C (capacitor) structure including two transistors T 1 and T 2 and a capacitor Cst. In some cases, the subpixel circuit unit SPC may further include one or more transistors or include one or more capacitors.Depending on the configuration of the subpixel circuit unit SPC, the type and the number of gate signals supplied to the subpixel SP and the gate lines may vary. Further, the type and the number of common pixel driving voltages supplied to the subpixel SP may vary depending on the structure of the subpixel circuit unit SPC.Since the circuit elements (specifically, the light emitting element ED implemented as an organic light emitting diode (OLED) including an organic material) in each subpixel SP are susceptible to moisture or oxygen from the outside, the encapsulation layer 200 for preventing moisture or oxygen from entering the circuit elements (specifically, the light emitting element ED) from the outside may be disposed on the display panel 110. The encapsulation layer 200 may be configured in various shapes so that the light emitting elements ED do not come into contact with moisture or oxygen.Referring to FIG. 2, the display panel 110 according to embodiments of the disclosure may include a plurality of sensor electrodes SE for touch sensing. For example, a plurality of sensor electrodes SE may be disposed on the encapsulation layer 200.The display panel 110 according to embodiments of the disclosure may further include a plurality of signal lines (hereinafter, referred to as a plurality of trace lines) for electrically connecting the plurality of sensor electrodes SE to the touch driving circuit 160.The display device 100 according to an embodiment of the disclosure may have an extremely narrow aperture structure in which the non-display area NDA of the display panel 110 is very small or almost absent. Hereinafter, an extremely narrow bezel structure of the display panel 110 of the display device 100 according to an embodiment of the disclosure will be described.The display panel 110 according to embodiments of the disclosure has an internal wiring structure as an extremely narrow aperture structure. The internal wiring structure of the display panel 110 according to embodiments of the disclosure may be a structure in which a trace line for electrical connection between the sensor electrode SE and the touch driving circuit 160 is disposed across the display area DA without bypassing the non-display area NDA outside the display area DA. Hereinafter, an internal wiring structure of the display panel 110 according to embodiments of the disclosure will be described in more detail.FIG. 3 is a plan view showing a touch sensor included in a display panel 110 according to embodiments of the disclosure.Referring to FIG. 3, the substrate 111 of the display panel 110 according to embodiments of the disclosure may include a display region DA in which a plurality of subpixels SP are arranged, and a non-display region NDA including a pad region PA arranged in a first direction from the display region DA.Referring to FIG. 3, the display panel 110 according to embodiments of the disclosure may include a touch sensor including a plurality of sensor electrodes SE arranged in the display area DA.Referring to FIG. 3, the display panel 110 according to embodiments of the disclosure may further include: a plurality of pads PD disposed in the pad region PA; and a plurality of trace lines TL for electrically connecting the plurality of sensor electrodes SE and the plurality of pads PD. The plurality of trace lines TL may be considered as the components included in the touch sensor.Referring to FIG. 3, the plurality of sensor electrodes SE may include a plurality of transmission sensor electrodes SE_TX and a plurality of reception sensor electrodes SE_RX. The plurality of track lines TL may include a plurality of transmission track lines TL_TX and a plurality of reception track lines TL_RX. The plurality of pads PD may include a plurality of transmission pads PD_TX and a plurality of reception pads PD_RX.A touch driving signal output from the touch driving circuit 160 may be applied to at least one of the plurality of transmission sensor electrodes SE_TX. Here, the touch driving signal may be a signal whose voltage level is changed. For example, the touch driving signal may be a pulse signal having a predetermined frequency and amplitude, and may be a signal having different signal waveforms such as a triangular wave, a spherical wave, or a sine wave.Referring to FIG. 3, the plurality of transmission sensor electrodes SE_TX and the plurality of reception sensor electrodes SE_RX may be arranged to cross each other. For example, each of the plurality of transmission sensor electrodes SE_TX may be arranged to extend in the first direction. Each of the plurality of reception sensor electrodes SE_RX may be arranged to extend in the second direction different from the first direction.The shape of each of the plurality of transmission sensor electrodes SE_TX and the plurality of reception sensor electrodes SE_RX may be modified in various ways. For example, each of the plurality of transmission sensor electrodes SE_TX and the plurality of reception sensor electrodes SE_RX may have a bar shape. As another example, each of the plurality of reception sensor electrodes SE_RX may be formed of a plurality of electrically connected sub-sensor electrodes, or each of the plurality of transmission sensor electrodes SE_TX may be formed of a plurality of electrically connected sub-sensor electrodes. For example, each of the plurality of sub-sensor electrodes may have different shapes, such as a square, a diamond, or a comb pattern.Referring to FIG. 3, when applying the internal wiring structure of the display panel 110 according to embodiments of the disclosure, one of the plurality of transmission trace lines TL_TX or the plurality of reception trace lines TL_RX may extend to the pad area PA via the display area DA without bypassing the non-display area NDA outside the display area DA.For example, a plurality of reception track lines TL_RX among the plurality of transmission track lines TL_TX or the plurality of reception track lines TL_RX may extend to the pad area PA via the display area DA without bypassing the non-display area NDA outside the display area DA. When the plurality of reception tracking lines TL_RX pass through the display area DA, the plurality of reception tracking lines TL_RX may be arranged to bypass the light emission area of each of the plurality of subpixels SP in the display area DA. Accordingly, it is possible to design an internal wiring structure without degrading light emission performance.In this case, the plurality of reception track lines TL_RX may cross the plurality of reception sensor electrodes SE_RX. In other words, the plurality of reception trace lines TL_RX may be disposed in a metal layer different from the plurality of reception sensor electrodes SE_RX, and the plurality of reception sensor electrodes SE_RX may overlap.According to the internal wiring structure of the display panel 110 according to embodiments of the disclosure, the size of the non-display region NDA can be significantly reduced.Referring to FIG. 3, the non-display area NDA may include a first non-display area NDA 1 arranged in the first direction from the display area DA, a second non-display area NDA 2 arranged in the second direction from the display area DA, a third non-display area NDA 3 arranged in a direction opposite to the first direction from the display area DA, and a fourth non-display area NDA 4 arranged in a direction opposite to the second direction from the display area DA. That is, the first non-display area NDA 1 is located below the display area DA (e.g., a first side of the display area DA), the second non-display area NDA 2 is located to the right of the display area DA (e.g., a second side of the display area DA), the third non-display area NDA 3 is located above the display area DA (e.g., a third side of the display area DA), and the fourth non-display area NDA 4 is located at a left side of the display area DA (e.g., a fourth side of the display area DA).Referring to FIG. 3, when applying the internal wiring structure of the display panel 110 according to embodiments of the disclosure, a plurality of trace lines TL may be disposed in the first non-display region NDA 1 including the pad region PA below the first to fourth non-display regions NDA 1 to NDA 4, but a plurality of trace lines TL may not be disposed in the second non-display region NDA 2 and the fourth non-display region NDA 4.Accordingly, the sizes of the second non-display area NDA 2 and the fourth non-display area NDA 4 among the first to fourth non-display areas NDA 1 to NDA 4 can be reduced to a limit.Referring to FIG. 3, the plurality of transmission sensor electrodes SE_TX and the plurality of reception sensor electrodes SE_RX may include a sensor metal SM.The plurality of transmission trace lines TL_TX or the plurality of reception trace lines TL_RX may cross the plurality of transmission sensor electrodes SE_TX or the plurality of reception sensor electrodes SE_RX. Accordingly, the plurality of transmission trace lines TL_TX or the plurality of reception trace lines TL_RX may include a bridge metal BM different from the sensor metal SM included in the plurality of transmission sensor electrodes SE_TX or the plurality of reception sensor electrodes SE_RX.For example, as shown in FIG. 3, of the plurality of transmission trace lines TL_TX and the plurality of reception trace lines TL_RX, the plurality of reception trace lines TL_RX may cross the display area DA while crossing the plurality of reception sensor electrodes SE_RX.In this case, the plurality of reception track lines TL_RX may include a bridge metal BM different from the sensor metal SM. In this case, the plurality of transmission trace lines TL_TX may include the sensor metal SM or the bridge metal BM.As another example, of the plurality of transmission trace lines TL_TX and the plurality of reception trace lines TL_RX, the plurality of transmission trace lines TL_TX may cross the plurality of transmission sensor electrodes SE_TX while traversing the display area DA. In this case, the plurality of transmission trace lines TL_TX may include a bridge metal BM different from the sensor metal SM. In this case, the plurality of reception track lines TL_RX may include the sensor metal SM or the bridge metal BM.Outside the display area DA (i.e., in the first non-display area NDA 1), the trace lines TL may change from the sensor metal SM to the bridge metal BM or from the bridge metal BM to the sensor metal SM. If necessary, a third metal different from the sensor metal SM and the bridge metal BM may be used as some metals of the trace lines TL.Hereinafter, modified examples of the touch sensor of FIG. 3 will be described with reference to FIGS. 4, 5, 6, and 7. However, in the description of the touch sensor of FIGS. 4, 5, 6, and 7, the description of the same features as the touch sensor of FIG. 3 is omitted, and other features are mainly described.FIG. 4 is another plan view showing a touch sensor included in a display panel 110 according to embodiments of the disclosure.Referring to FIG. 4, the touch sensor included in the display panel 110 according to embodiments of the disclosure may have a resistance equivalent design structure.The number of the reception track lines TL_RX connected to a reception sensor electrode SE_RX that is the farthest from the pad area PA among the plurality of reception sensor electrodes SE_RX may be larger than the number of the reception track lines TL_RX connected to a reception sensor electrode SE_RX that is the closest to the pad area PA among the plurality of reception sensor electrodes SE_RX.For example, as shown in FIG. 4, two reception trace lines TL_RXa and TL_RXb may be connected to each of two opposite ends of a reception sensor electrode SE_RX that is farthest from the pad area PA, among the plurality of reception sensor electrodes SE_RX, and one reception trace line TL_RX may be connected to each of two opposite ends of a reception sensor electrode SE_RX that is closest to the pad area PA, among the plurality of reception sensor electrodes SE_RX.Referring to FIG. 4, the first trace line TL 1 connected to an end of the first sensor electrode SE 1, which is the furthest receiving sensor electrode SE_RX, may include two receiving trace lines TL_RXa and TL_RXb that overlap the display area DA and extend in the first direction. Similarly, the first trace line TL 1 connected to the other end of the first sensor electrode SE 1 may include two reception trace lines TL_RXa and TL_RXb that overlap the display area DA and extend in the first direction. The two reception tracking lines TL_RXa and TL_RXb included in the first tracking line TL 1 connected to one end of the first sensor electrode SE 1 may be physically connected in the non-display area NDA. The two reception tracking lines TL_RXa and TL_RXb included in the first tracking line TL 1 connected to the other end of the first sensor electrode SE 1 may be physically connected in the non-display area NDA.Thus, the two receive track lines TL_RXa and TL_RXb may be physically connected (i.e., merged into a single one) in the non-display area NDA to be connected to a first pad PD 1. Accordingly, the number of pads in the pad region PA can be reduced, and the number of pads (the number of channels) of the touch driving circuit 160 can be reduced. For example, when the plurality of reception sensor electrodes SE_RX are divided into n groups, the number of reception track lines TL_RX connected to the reception sensor electrode SE_RX included in the first group closest to the pad area PA among the n groups may be 1, the number of reception track lines TL_RX connected to the reception sensor electrode SE_RX included in the second group closest to the pad area PA among the n groups may be 2, the number of reception track lines TL_RX connected to the reception sensor electrode SE_RX included in the third group may be 1, which is closest to the pad region PA among the n groups may be 3, and the number of the reception track lines TL_RX connected to the reception sensor electrode SE_RX included in the nth group closest to the pad region PA among the n groups may be n.According to the resistance equivalent design structure of the touch sensor included in the display panel 110 according to embodiments of the disclosure, even if there is a length deviation between the plurality of reception track lines TL_RX, the resistance deviation of the signal transmission path between the plurality of reception sensor electrodes SE_RX and the plurality of reception pads PD_RX can be reduced. This can improve the touch sensitivity.Referring to FIGS. 3 and 4, in the touch sensor included in the display panel 110 according to embodiments of the disclosure, all of the plurality of contact holes CNTs in which the plurality of reception sensor electrodes SE_RX and the plurality of reception track lines TL_RX are connected may be disposed further outside than the outermost transmission track line TL_TX among the plurality of transmission track lines TL_TX.In other words, referring to FIGS. 3 and 4, the first track line TL 1, the second track line TL 2, the third track line TL 3, and the fifth track line TL 5 may be arranged to extend in the first direction from a periphery in the display area DA. Here, the edge portion is a portion included in the display region DA, and may be a portion disposed more outside than the sensor electrode SE 4 disposed at the outermost side among the sensor electrodes SE_TX extending in the first direction. In the examples of FIGS. 3 and 4, the edge portion may include a first edge portion disposed more outward among the transmission sensor electrodes SE_TX extending in the first direction than the sensor electrode SE 4 disposed at the outermost side in the left direction (a direction opposite to the second direction), and a second edge portion disposed more outward among the sensor electrodes SE_TX extending in the first direction than the sensor electrode disposed at the outermost side in the right direction (the second direction). FIG. 5 is another plan view showing a touch sensor included in a display panel 110 according to embodiments of the disclosure.Referring to FIG. 5, in the touch sensor included in the display panel 110 according to embodiments of the disclosure, among the plurality of contact holes CNTs at which the plurality of reception sensor electrodes SE_RX and the plurality of reception track lines TL_RX are connected, some of the contact holes CNTs may be disposed further outside the outermost transmission track line TL_TX among the plurality of transmission track lines TL_TX, and other contact holes CNTs may be disposed further inside than the outermost transmission track line TL_TX or TL4 among the plurality of transmission track lines TL_TX and some transmission sensor electrodes SE_TX (e.g., the fourth sensor electrode SE4 disposed at the outermost side).For example, the reception track lines TL_RX corresponding to the various reception sensor electrodes SE_RX in an associated manner may be arranged with the transmission sensor electrode SE_TX (e.g., the fourth sensor electrode SE 4) arranged therebetween.In the touch sensor of FIGS. 3, 4, and 5, each of the plurality of transmission sensor electrodes SE_TX may be disposed to extend in a first direction (e.g., a column direction), and each of the plurality of reception sensor electrodes SE_RX may be disposed to extend in a second direction (e.g., a row direction).FIG. 6 is another plan view showing a touch sensor included in a display panel 110 according to embodiments of the disclosure.Referring to FIG. 6, in the touch sensor included in the display panel 110 according to embodiments of the disclosure, each of the plurality of transmission sensor electrodes SE_TX may be disposed to extend in the second direction (e.g., row direction), and each of the plurality of reception sensor electrodes SE_RX may be disposed to extend in the first direction (e.g., column direction).In FIGS. 3 to 7, the plurality of sensor electrodes SE arranged to extend in the second direction may include a first sensor electrode SE 1, a second sensor electrode SE 2, a third sensor electrode SE 3, and a fifth sensor electrode SE 5, and the plurality of sensor electrodes SE arranged to extend in the first direction include a fourth sensor electrode SE 4, for example.In FIGS. 3, 4, 5, and 7, for example, the plurality of reception sensor electrodes SE_RX extending in the second direction includes a first sensor electrode SE 1, a second sensor electrode SE 2, a third sensor electrode SE 3, and a fifth sensor electrode SE 5, and the plurality of transmission sensor electrodes SE_TX extending in the first direction includes a fourth sensor electrode SE 4.As another example, in FIG. 6, the plurality of transmission sensor electrodes SE_TX extending in the second direction include a first sensor electrode SE 1, a second sensor electrode SE 2, a third sensor electrode SE 3, and a fifth sensor electrode SE 5, and the plurality of reception sensor electrodes SE_RX extending in the first direction include a fourth sensor electrode SE 4.As shown in FIGS. 3, 4, 5, and 6, at least one first trace line TL 1 may be electrically connected to two opposite ends of the first sensor electrode SE 1 disposed to extend in the second direction. In other words, one or two or more first trace lines TL 1 may be electrically connected to one end of two opposite ends of the first sensor electrode SE 1, and one or two or more first trace lines TL 1 may be electrically connected to the other end of the two opposite ends of the first sensor electrode SE 1. In this case, the signal transmission delay at the first sensor electrode SE 1 itself elongated in the second direction can be reduced.Also, at least one second trace line TL 2 may be electrically connected to two opposite ends of the second sensor electrode SE 2 extending in the second direction. At least one third trace line TL 3 may be electrically connected to two opposite ends of the third sensor electrode SE 3 disposed to extend in the second direction. At least one fifth trace line TL 5 may be electrically connected to two opposite ends of the fifth sensor electrode SE 5 disposed to extend in the second direction.Alternatively, at least one first trace line TL 1 may be electrically connected to only one end of two opposite ends of the first sensor electrode SE 1 disposed to extend in the second direction. At least one second trace line TL 2 may be electrically connected to only one end of two opposite ends of the second sensor electrode SE 2 disposed to extend in the second direction. At least one third trace line TL 3 may be electrically connected to only one of two opposite ends of the third sensor electrode SE 3 disposed to extend in the second direction. At least one fifth trace line TL 5 may be electrically connected to only one of two opposite ends of the fifth sensor electrode SE 5 disposed to extend in the second direction.As shown in FIGS. 3, 4, 5, and 6, the two first trace lines TL 1 connected to two opposite ends of the first sensor electrode SE 1 may be electrically connected to two first pads PD 1. The two second trace lines TL 2 connected to two opposite ends of the second sensor electrode SE 2 may be electrically connected to two second pads PD 2. The two third trace lines TL 3 connected to two opposite ends of the third sensor electrode SE 3 may be electrically connected to two third pads PD 3. The two fifth trace lines TL 5 connected to two opposite ends of the fifth sensor electrode SE 5 may be electrically connected to two fifth pads PD 5.FIG. 7 is another plan view showing a touch sensor included in a display panel 110 according to embodiments of the disclosure.Referring to FIG. 7, two first trace lines TL 1 may be electrically connected to two opposite ends of the first sensor electrode SE 1 disposed to extend in the second direction. In other words, a first trace line TL 1 may be electrically connected to one end of two opposite ends of the first sensor electrode SE 1, and a first trace line TL 1 may be electrically connected to the other end of the two opposite ends of the first sensor electrode SE 1. In this case, the signal transmission delay at the first sensor electrode SE 1 itself may be reduced as the first sensor electrode SE 1 is longer in the second direction.Also, two second trace lines TL 2 may be electrically connected to two opposite ends of the second sensor electrode SE 2 disposed to extend in the second direction. Two third trace lines TL 3 may be electrically connected to two opposite ends of the third sensor electrode SE 3 disposed to extend in the second direction. Two fifth trace lines TL 5 may be electrically connected to two opposite ends of the fifth sensor electrode SE 5 disposed to extend in the second direction.As described above, by connecting two trace lines TL to one sensor electrode SE, signal transmission delay occurring in the sensor electrode SE itself can be reduced.Referring to FIG. 7, two first trace lines TL 1 connected to two opposite ends of the first sensor electrode SE 1 may be commonly connected to a first pad PD 1. The two second trace lines TL 2 connected to two opposite ends of the second sensor electrode SE 2 may be commonly connected to a second pad PD 2. The two third trace lines TL 3 connected to two opposite ends of the third sensor electrode SE 3 may be commonly connected to a third pad PD 3. The two fifth trace lines TL 5 connected to two opposite ends of the fifth sensor electrode SE 5 may be commonly connected to a fifth pad PD 5.According to this divided pad structure, a pad may be connected to two trace lines TL connected to two opposite ends of a sensor electrode SE. Accordingly, the number of pads and the size of the pad area PA in the display panel 110 can be reduced, and the number of pads (the number of channels) of the touch driving circuit 160 connected to the pad area PA can be reduced. Accordingly, the size of the touch driving circuit 160 can also be reduced.Referring to FIGS. 3 to 7, the plurality of transmission pads PD_TX and the plurality of reception pads PD_RX disposed in the pad area PA may be disposed to be collected for each type. In other words, the plurality of transmission pads PD_TX may be collectively arranged, and the plurality of reception pads PD_RX may be collectively arranged.Alternatively, the plurality of transmission pads PD_TX and the plurality of reception pads PD_RX arranged in the pad area PA may be mixed and arranged.Referring to FIGS. 3, 4, and 6, in the first non-display area NDA 1, the plurality of transmission track lines TL_TX and the plurality of reception track lines TL_RX may not cross each other. In this case, the plurality of transmission track lines TL_TX and the plurality of reception track lines TL_RX may not overlap in the vertical direction. Accordingly, the plurality of transmission trace lines TL_TX and the plurality of reception trace lines TL_RX may be disposed in different metal layers or in the same metal layer.Referring to FIGS. 5 and 7, in the first non-display area NDA 1, all or some of the plurality of reception track lines TL_RX may cross all or some of the plurality of transmission track lines TL_TX. In this case, the plurality of transmission track lines TL_TX and the plurality of reception track lines TL_RX may overlap in the vertical direction. Accordingly, the plurality of transmission lane lines TL_TX and the plurality of reception lane lines TL_RX should be arranged in different metal layers.Referring to FIGS. 3 to 7, the substrate 111 may include a display region DA in which a plurality of subpixels SP are arranged, and a non-display region NDA including a pad region PA arranged in a first direction from the display region DA.Referring to FIGS. 3 to 7, the non-display area NDA may include a first non-display area NDA 1 arranged in the first direction from the display area DA, a second non-display area NDA 2 arranged in the second direction from the display area DA, a third non-display area NDA 3 arranged in a direction opposite to the first direction from the display area DA, and a fourth non-display area NDA 4 arranged in a direction opposite to the second direction from the display area DA. For example, the first direction may be a column direction (Y-axis direction), and the second direction crossing the first direction may be a row direction (X-axis direction).Referring to FIGS. 3 to 7, the plurality of sensor electrodes SE may include a first sensor electrode SE 1 disposed in the display area DA and extending in the second direction, and a second sensor electrode SE 2 disposed in the display area DA and extending in the second direction.Referring to FIGS. 3 to 7, the plurality of pads PD may include a first pad PD 1 disposed in the pad region PA and a second pad PD 2 disposed in the pad region PA.Referring to FIGS. 3 to 7, the plurality of trace lines TL may include: a first trace line TL 1 electrically connecting the first sensor electrode SE 1 and the first pad PD 1; and a second trace line TL 2 electrically connecting the second sensor electrode SE 2 and the second pad PD 2.Referring to FIGS. 3 to 7, the second sensor electrode SE 2 may be disposed closer to the pad area PA than the first sensor electrode SE 1. The first trace line TL 1 may overlap the second sensor electrode SE 2.Referring to FIGS. 3 to 7, the first track line TL 1 and the second track line TL 2 may extend to the pad region PA via the display region DA in the first direction.Referring to FIGS. 3 to 7, the plurality of sensor electrodes SE may further include a third sensor electrode SE 3 disposed in the display region DA and extending in the second direction, the plurality of pads PD may further include a third pad PD 3 disposed in the pad region PA, and the plurality of trace lines TL may further include a third trace line TL 3 electrically connecting the third sensor electrode SE 3 and the third pad PD 3.The third sensor electrode SE 3 may be disposed closer to the pad region PA than the second sensor electrode SE 2.Each of the first trace line TL 1 and the second trace line TL 2 may overlap the third sensor electrode SE 3.Referring to FIGS. 3 to 7, the plurality of sensor electrodes SE may further include a fourth sensor electrode SE 4 disposed in the display region DA and extending in the first direction, and a fifth sensor electrode SE 5 disposed in the display region DA and extending in the second direction, the plurality of pads PD may further include a fourth pad PD 4 disposed in the pad region PA and a fifth pad PD 5 disposed in the pad region PA, and the plurality of trace lines TL may include a fourth trace line TL 4 for electrically connecting the fourth sensor electrode SE 4 and the fourth pad PD 4 and a fifth trace line TL 5 for electrically connecting the fifth sensor electrode SE 5 and the fifth pad PD 5.The fourth sensor electrode SE 4 may be disposed closer to the pad region PA than the first sensor electrode SE 1 and the second sensor electrode SE 2.Each of the first trace line TL 1, the second trace line TL 2, and the third trace line TL 3 may overlap the fifth sensor electrode SE 5.Referring to FIGS. 3, 4, 5, and 7, the fourth sensor electrode SE 4 among the first sensor electrode SE 1, the second sensor electrode SE 2, the third sensor electrode SE 3, the fourth sensor electrode SE 4, and the fifth sensor electrode SE 5 may be a transmission sensor electrode, and the first sensor electrode SE 1, the second sensor electrode SE 2, the third sensor electrode SE 3, and the fifth sensor electrode SE 5 may be reception sensor electrodes.Accordingly, the fourth sensor electrode SE 4 may be supplied from the touch driving circuit 160 with a signal (touch driving signal) whose voltage level is varied.Referring to FIG. 6, among the first sensor electrode SE 1, the second sensor electrode SE 2, the third sensor electrode SE 3, the fourth sensor electrode SE 4, and the fifth sensor electrode SE 5, the fourth sensor electrode SE 4 may be a reception sensor electrode, and the first sensor electrode SE 1, the second sensor electrode SE 2, the third sensor electrode SE 3, and the fifth sensor electrode SE 5 may be transmission sensor electrodes.Each of the first sensor electrode SE 1, the second sensor electrode SE 2, the third sensor electrode SE 3, and the fifth sensor electrode SE 5 may be supplied with a signal (a touch driving signal) whose voltage level is changed by the touch driving circuit 160.Referring to FIG. 4, the number of the first trace lines TL 1 connected to the first sensor electrode SE 1 may be larger than the number of the fifth trace lines TL 5 connected to the fifth sensor electrode SE 5. For example, the number of the first trace lines TL 1 connected to the first sensor electrode SE 1 may be twice as large as the number of the fifth trace lines TL 5 connected to the fifth sensor electrode SE 5. As shown in FIG. 4, the number of the first trace lines TL 1 connected to the first sensor electrode SE 1 may be four, and the number of the fifth trace lines TL 5 connected to the fifth sensor electrode SE 5 may be two. As another example, the number of the first trace lines TL 1 connected to the first sensor electrode SE 1 may be two, and the number of the fifth trace lines TL 5 connected to the fifth sensor electrode SE 5 may be one.Referring to FIGS. 3 to 7, the fourth sensor electrode SE 4 may cross the first sensor electrode SE 1, the second sensor electrode SE 2, and the fifth sensor electrode SE 5.Referring to FIGS. 3, 4, 6, and 7, the first trace line TL 1, the second trace line TL 2, the third trace line TL 3, and the fifth trace line TL 5 may all be disposed outside the fourth sensor electrode SE 4.Referring to FIG. 5, of the first trace line TL 1, the second trace line TL 2, the third trace line TL 3, and the fifth trace line TL 5, the first trace line TL 1, the second trace line TL 2, and the third trace line TL 3 may be disposed outside the fourth sensor electrode SE 4, and the fifth trace line TL 5 may be disposed inside the fourth sensor electrode SE 4. That is, the fourth sensor electrode SE 4 is interposed between the first trace line TL 1 and the fifth trace line TL 5. In this case, the fourth sensor electrode SE 4 may be disposed between the first trace line TL 1 and the fifth trace line TL 5. Alternatively, the fourth sensor electrode SE 4 may be disposed between the contact hole CNT of the first trace line TL 1 and the first sensor electrode SE 1, and the contact hole CNT of the fifth trace line TL 5 and the fifth sensor electrode SE 5.Referring to FIGS. 3 to 7, the plurality of transmission pads PD_TX and the plurality of reception pads PD_RX disposed in the pad area PA may be disposed to be collected for each type. In other words, the plurality of transmission pads PD_TX may be collectively arranged, and the plurality of reception pads PD_RX may be collectively arranged.Alternatively, the plurality of transmission pads PD_TX and the plurality of reception pads PD_RX arranged in the pad area PA may be mixed and arranged.Referring to FIG. 5, when the plurality of transmission pads PD_TX and the plurality of reception pads PD_RX are disposed in the pad area PA so as to be collected for each type, the fifth pad PD 5 may be disposed between the first pad PD 1 and the fourth pad PD 4.In this case, the fifth track line TL 5 may cross the fourth track line TL 4. Accordingly, the fifth track line TL 5 should be disposed in a metal layer other than the fourth track line TL 4. For example, the fifth trace line TL 5 may include a bridge metal, and the fourth trace line TL 4 may include a sensor metal.When the plurality of transmission pads PD_TX and the plurality of reception pads PD_RX disposed in the pad area PA are mixedly disposed, unlike FIG. 5, the fourth pad PD 4 may be disposed between the first pad PD 1 and the fifth pad PD 5.The fifth track line TL 5 may not cross the fourth track line TL 4. Accordingly, the fifth trace line TL 5 may be disposed in the same metal layer as the fourth trace line TL 4. For example, the fifth trace line TL 5 and the fourth trace line TL 4 may include a bridge metal or a sensor metal.Hereinafter, for convenience of description, the plurality of sensor electrodes SE arranged to extend in the first direction are the transmission sensor electrodes SE_TX, and the plurality of sensor electrodes SE arranged to extend in the second direction are the reception sensor electrodes SE_RX. However, the following description may be applied even when the plurality of sensor electrodes SE arranged to extend in the first direction are the reception sensor electrodes SE_RX, and the plurality of sensor electrodes SE arranged to extend in the second direction are the transmission sensor electrodes SE_TX.FIG. 8 shows in detail an example of a portion 300 of a touch sensor included in a display panel 110 according to embodiments of the disclosure. FIG. 9 shows a unit sensor in a touch sensor included in a display panel 110 according to embodiments of the disclosure, and is an enlarged view of the area 800 illustrating the unit sensor of FIG. 8. In the following description, reference is also made to FIG. 3. Here, the unit sensor 800 may mean an area where a transmission touch electrode SE_TX and a reception touch sensor electrode SE_RX cross each other.FIG. 8 is an enlarged plan view of the portion 300 of FIG. 3, and shows an example in which each sensor electrode SE included in the touch sensor has a comb-tooth shape.Referring to FIG. 8, a sensor electrode SE may be configured as an integrated electrode or a plurality of sub-sensor electrodes electrically connected to each other.Referring to FIG. 8, in a portion 300 of the touch sensor of FIG. 3, a first reception sensor electrode SE_RX 1 and a second reception sensor electrode SE_RX 2 extending in the second direction (e.g., row direction), and a first transmission sensor electrode SE_TX 1, a second transmission sensor electrode SE_TX 2, and a third transmission sensor electrode SE_TX 3 extending in the first direction (e.g., column direction) may be disposed. Here, the first direction and the second direction may be directions intersecting each other.Referring to FIG. 8, in the partial region 300 of the touch sensor of FIG. 3, a first reception trace line TL_RX 1 electrically connected to the first reception sensor electrode SE_RX 1 and a second reception trace line TL_RX 2 electrically connected to the second reception sensor electrode SE_RX 2 may be further disposed.Referring to FIG. 8, the first transmission sensor electrode SE_TX 1, the second transmission sensor electrode SE_TX 2, and the third transmission sensor electrode SE_TX 3 may be electrically connected to the first transmission trace line TL_TX 1, the second transmission trace line TL_TX 2, and the third transmission trace line TL_TX 3 in or near the first non-display area NDA 1 in an associated manner.Hereinafter, the first reception sensor electrode SE_RX 1 may be referred to as a first sensor electrode SE 1, the second reception sensor electrode SE_RX 2 may be referred to as a second sensor electrode SE 2, and the first transmission sensor electrode SE_TX 1 may be referred to as a fourth sensor electrode SE 4. Further, the first reception track line TL_RX 1 may be referred to as a first track line TL 1, the second reception track line TL_RX 2 may be referred to as a second track line TL 2, and the first transmission track line TL_TX 1 may be referred to as a fourth track line TL 4. Further, the first reception pad PD_RX to which the first reception sensor electrode SE_RX 1 is connected via the first reception track line TL_RX 1 may be referred to as a first pad PD 1, the second reception pad PD_RX to which the second reception sensor electrode SE_RX 2 is connected via the second reception track line TL_RX 2 may be referred to as a second pad PD 2, and the first transmission pad PD_TX to which the first transmission sensor electrode SE_TX 1 is connected via the first transmission track line TL_TX 1 may be referred to as a fourth pad PD 4.Also, the third reception sensor electrode SE_RX disposed next to the second reception sensor electrode SE 2 in the first direction may be referred to as a third sensor electrode SE 3, and the reception sensor electrode SE_RX disposed closest to the pad region PA among the plurality of reception sensor electrodes SE_RX may be referred to as a fifth sensor electrode SE 5. Further, the reception trace line TL_RX connected to the third sensor electrode SE 3 may be referred to as a third trace line TL 3, and the reception trace line TL_RX connected to the fifth sensor electrode SE 5 may be referred to as a fifth trace line TL 5. Further, the receiving pad PD_RX to which the third sensor electrode SE 3 is connected via the third trace line TL 3 may be referred to as a third pad PD 3, and the receiving pad PD_RX to which the fifth sensor electrode SE 5 is connected via the fifth trace line TL 5 may be referred to as a fifth pad PD 5.Each of the first, second, and third transmission sensor electrodes SE_TX 1, SE_TX 2, and SE_TX 3 may be configured as an integrated electrode. The first reception sensor electrode SE_RX 1 may include a plurality of first sub sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 delectrically connected via the first bridge BRG 1. The second reception sensor electrode SE_RX 2 may include a plurality of second sub sensor electrodes SUB 2 a, SUB 2 b, SUB 2 c, and SUB 2 delectrically connected by the second bridge BRG 2.The first bridge BRG 1 may overlap the first, second, and third transmission sensor electrodes SE_TX 1, SE_TX 2, and SE_TX 3. The second bridge BRG 2 may overlap the first, second, and third transmission sensor electrodes SE_TX 1, SE_TX 2, and SE_TX 3.Referring to FIG. 8, the first transmission sensor electrode SE_TX 1 may extend between the two first sub-sensor electrodes SUB 1 aand SUB 1 bprovided in the first reception sensor electrode SE_RX 1 and between the two second sub-sensor electrodes SUB 2 aand SUB 2 bprovided in the second reception sensor electrode SE_RX 2. That is, a first portion of the first transmission sensor electrode SE_TX1 is located between the two first sub-sensor electrodes SUB1a and SUB1b and overlaps the first bridge BRG1, and a second portion of the first transmission sensor electrode SE_TX1 is located between the two second sub-sensor electrodes SUB2a and SUB2b and overlaps the second bridge BRG2.The first bridge BRG 1 electrically connecting the two first sub-sensor electrodes SUB 1 aand SUB 1 bincluded in the first reception sensor electrode SE_RX 1 may overlap the first transmission sensor electrode SE_TX 1.The second bridge BRG 2 electrically connecting the two second sub-sensor electrodes SUB 2 aand SUB 2 bincluded in the second reception sensor electrode SE_RX 2 may overlap with the first transmission sensor electrode SE_TX 1.Referring to FIG. 8, the second transmission sensor electrode SE_TX 2 may extend between other two first sub-sensor electrodes SUB 1 band SUB 1 cincluded in the first reception sensor electrode SE_RX 1 and between other two second sub-sensor electrodes SUB 2 band SUB 2 cincluded in the second reception sensor electrode SE_RX 2.The first bridge BRG 1 electrically connecting the other two first sub-sensor electrodes SUB 1 band SUB 1 cincluded in the first reception sensor electrode SE_RX 1 may overlap the second transmission sensor electrode SE_TX 2.The second bridge BRG 2 electrically connecting the other two second sub-sensor electrodes SUB 2 band SUB 2 cincluded in the second reception sensor electrode SE_RX 2 may overlap with the second transmission sensor electrode SE_TX 2.Referring to FIG. 8, the third transmission sensor electrode SE_TX 3 may extend between other two first sub-sensor electrodes SUB 1 cand SUB 1 dincluded in the first reception sensor electrode SE_RX 1 and between other two second sub-sensor electrodes SUB 2 cand SUB 2 dincluded in the second reception sensor electrode SE_RX 2.The first bridge BRG 1 electrically connecting the other two first sub-sensor electrodes SUB 1 cand SUB 1 dincluded in the first reception sensor electrode SE_RX 1 may overlap the third transmission sensor electrode SE_TX 3.The second bridge BRG 2 electrically connecting the other two second sub-sensor electrodes SUB 2 cand SUB 2 dincluded in the second reception sensor electrode SE_RX 2 may overlap with the third transmission sensor electrode SE_TX 3.Referring to FIG. 8, the first reception trace line TL_RX 1 may be electrically connected to at least one (e.g., SUB 1 a) of the plurality of first sub sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 dforming the first reception sensor electrode SE_RX 1 via a contact hole CNT.The second reception trace line TL_RX 2 may be electrically connected to at least one (e.g., SUB 2 a) of the plurality of second sub sensor electrodes SUB 2 a, SUB 2 b, SUB 2 c, and SUB 2 dforming the second reception sensor electrode SE_RX 2 through the contact hole CNT.Referring to FIG. 8, the first transmission sensor electrode SE_TX 1 may be electrically connected to the first transmission trace line TL_TX 1 at a point closest to the first non-display area NDA 1. Alternatively, the first transmission sensor electrode SE_TX 1 may extend to the first non-display area NDA 1. A portion extending to the first non-display area NDA 1 in the first transmission sensor electrode SE_TX 1 may correspond to the first transmission trace line TL_TX 1.The second transmission sensor electrode SE_TX 2 may be electrically connected to the second transmission trace line TL_TX 2 at a point closest to the first non-display area NDA 1. Alternatively, the second transmission sensor electrode SE_TX 2 may extend to the first non-display area NDA 1. A portion extending to the first non-display area NDA 1 in the second transmission sensor electrode SE_TX 2 may correspond to the second transmission trace line TL_TX 2.The third transmission sensor electrode SE_TX 3 may be electrically connected to the third transmission trace line TL_TX 3 at a point closest to the first non-display area NDA 1. Alternatively, the third transmission sensor electrode SE_TX 3 may extend to the first non-display area NDA 1. A portion extending to the first non-display area NDA 1 in the third transmission sensor electrode SE_TX 3 may correspond to the third transmission trace line TL_TX 3.Referring to FIG. 8, the plurality of first sub-sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 dincluded in the first reception sensor electrode SE_RX 1 and the plurality of second sub-sensor electrodes SUB 2 a, SUB 2 b, SUB 2 c, and SUB 2 dincluded in the second reception sensor electrode SE_RX 2 may be formed of a sensor metal SM disposed in the sensor metal layer.The first bridge BRG 1 and the second bridge BRG 2 may be formed of a bridge metal BM disposed in a bridge metal layer that is a metal layer different from the sensor metal layer.An insulating layer may be present between the bridge metal layer and the sensor metal layer.Referring to FIG. 8, the first reception trace line TL_RX 1 may overlap the first transmission sensor electrode SE_TX 1 and / or the second reception sensor electrode SE_RX 2 disposed in the sensor metal layer, and should be electrically disconnected. Accordingly, the first reception trace line TL_RX 1 should be disposed in a bridge metal layer other than the sensor metal layer. In other words, the first reception track line TL_RX 1 may include a bridge metal BM.The second reception trace line TL_RX 2 may overlap the first transmission sensor electrode SE_TX 1 and / or the first reception sensor electrode SE_RX 1, which may be disposed in the sensor metal layer to be electrically disconnected. Accordingly, the second reception trace line TL_RX 2 should be disposed in a bridge metal layer other than the sensor metal layer. In other words, the second reception track line TL_RX 2 may include a bridge metal BM.Referring to FIG. 8, the first transmission trace line TL_TX 1, the second transmission trace line TL_TX 2, and the third transmission trace line TL_TX 3 may be disposed in the sensor metal layer or the bridge metal layer. In other words, the first transmission trace line TL_TX 1, the second transmission trace line TL_TX 2, and the third transmission trace line TL_TX 3 may include a sensor metal SM or a bridge metal BM.For example, in the first non-display area NDA 1, when at least one of the first transmission trace line TL_TX 1, the second transmission trace line TL_TX 2, and the third transmission trace line TL_TX 3 crosses and overlaps at least one of the first reception trace line TL_RX 1 and the second reception trace line TL_RX 2, the first transmission trace line TL_TX 1, the second transmission trace line TL_TX 2, and the third transmission trace line TL_TX 3 should be disposed in a metal layer different from the first reception trace line TL_RX 1 and the second reception trace line TL_RX 2.Accordingly, in the first non-display area NDA 1, when at least one of the first transmission trace line TL_TX 1, the second transmission trace line TL_TX 2, and the third transmission trace line TL_TX 3 crosses and overlaps at least one of the first reception trace line TL_RX 1 and the second reception trace line TL_RX 2, the first transmission trace line TL_TX 1, the second transmission trace line TL_TX 2, and the third transmission trace line TL_TX 3 may be disposed in the sensor metal layer. In other words, the first transmission trace line TL_TX 1, the second transmission trace line TL_TX 2, and the third transmission trace line TL_TX 3 may be formed of the sensor metal SM.Referring to FIGS. 8 and 9, the first sensor electrode SE 1 may include a first bridge BRG 1 electrically connecting two or more first sub-sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 dand two or more first sub-sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 darranged in the second direction. For example, the first sensor electrode SE 1 may be a first reception sensor electrode SE_RX 1.Referring to FIGS. 8 and 9, the first trace line TL 1 may be electrically connected to the first sensor electrode SE 1 and the first pad PD 1. One point of the first trace line TL 1 may be electrically connected to at least one of two or more first sub-sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 dincluded in the first sensor electrode SE 1, and another point of the first trace line TL 1 may be electrically connected to the first pad PD 1.Referring to FIG. 8, the second sensor electrode SE 2 may include a second bridge BRG 2 electrically connecting two or more second sub-sensor electrodes SUB 2 a, SUB 2 b, SUB 2 c, and SUB 2 d, and two or more second sub-sensor electrodes SUB 2 a, SUB 2 b, SUB 2 c, and SUB 2 darranged in the second direction. For example, the second sensor electrode SE 2 may be a second reception sensor electrode SE_RX 2.Referring to FIG. 8, the second trace line TL 2 may be electrically connected to the second sensor electrode SE 2 and the second pad PD 2. One point of the second trace line TL 2 may be electrically connected to at least one of two or more second sub-sensor electrodes SUB 2 a, SUB 2 b, SUB 2 c, and SUB 2 dincluded in the second sensor electrode SE 2, and another point of the second trace line TL 2 may be electrically connected to the second pad PD 2.Referring to FIGS. 8 and 9, the fourth sensor electrode SE 4 may be disposed to extend between the two first sub-sensor electrodes SUB 1 aand SUB 1 bincluded in the first sensor electrode SE 1 and between the two second sub-sensor electrodes SUB 2 aand SUB 2 bincluded in the second sensor electrode SE 2.Referring to FIGS. 8 and 9, the fourth sensor electrode SE 4 may overlap the first bridge BRG 1 and the second bridge BRG 2.The fourth trace line TL 4 may electrically connect the fourth pad PD 4 disposed in the pad region PA included in the first non-display region NDA 1 and the fourth sensor electrode SE 4 disposed in the display region DA.Referring to FIG. 9, in the touch sensor included in the display panel 110 according to embodiments of the disclosure, the sensor electrodes SE 1 and SE 4 may be a sensor metal SM in a mesh shape having openings OA formed therein. Here, the openings OA may overlap the light emission areas of the subpixels SP.In this case, the first trace line TL 1 connected to the first sensor electrode SE 1 and / or the first bridge BRG 1 included in the first sensor electrode SE 1 may be disposed along the mesh-shaped sensor metal SM constituting the first sensor electrode SE 1. In other words, the first bridge BRG 1 may be disposed curved or bent along the mesh-shaped sensor metal SM of the fourth sensor electrode SE 4.Accordingly, the first trace line TL 1 connected to the first sensor electrode SE 1 and / or the first bridge BRG 1 included in the first sensor electrode SE 1 may vertically overlap the mesh-shaped sensor metal SM constituting the first sensor electrode SE 1.Accordingly, the openings OA formed in the first sensor electrode SE 1 and the fourth sensor electrode SE 4 are not covered by the first trace line TL 1 and / or the first bridge BRG 1, so that the light emission areas of the subpixels SP can be enlarged and the light emission efficiency can be improved.FIG. 10A shows a stack structure of sensor electrodes SE 1 and SE 4 and a bridge BRG 1 in a touch sensor included in a display panel 110 according to embodiments of the disclosure, and FIG. 10B shows a stack structure of a sensor electrode SE 4 and a trace line TL 1 in a touch sensor included in a display panel 110 according to embodiments of the disclosure. In the following description, reference may also be made to FIGS. 3 and 8.FIG. 10A shows a vertical cross-sectional structure of a region 900 in which the first bridge BRG 1 of FIG. 9 is formed, and FIG. 10B shows a vertical cross-sectional structure taken along line A-B of FIG. 9.Referring to FIGS. 10A and 10B, the touch sensor may be formed on the encapsulation layer 200.Referring to FIGS. 10A and 10B, a touch buffer film 1010 may be disposed on the encapsulation layer 200, and a bridge metal layer BML may be disposed on the touch buffer film 1010.The touch interlayer insulating film 1020 may be disposed on the bridge metal layer BML, and the sensor metal layer SML may be disposed on the touch interlayer insulating film 1020.A touch protection film 1030 may be disposed on the sensor metal layer SML.In the examples of FIGS. 10A and 10B, the sensor metal layer SML is disposed on the bridge metal layer BML. Alternatively, the bridge metal layer BML may be disposed on the sensor metal layer SML.Referring to FIG. 10A, two or more first sub-sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 d, and a fourth sensor electrode SE 4 included in the first sensor electrode SE 1 may be disposed on the sensor metal layer SML. In other words, the two or more first sub-sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 d, and the fourth sensor electrode SE 4 included in the first sensor electrode SE 1 may include the sensor metal SM.The first bridge BRG 1 may electrically connect two or more first sub-sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 dincluded in the first sensor electrode SE 1. The first bridge BRG 1 may be disposed in the bridge metal layer BML, which is a metal layer other than the sensor metal layer SML. In other words, the first bridge BRG 1 may include a bridge metal BM.As described above, the two or more second sub-sensor electrodes SUB 2 a, SUB 2 b, SUB 2 c, and SUB 2 dincluded in the second sensor electrode SE 2 may also be disposed in the sensor metal layer SML and include the sensor metal SM. The second bridge BRG 2 electrically connecting the two or more second sub-sensor electrodes SUB 2 a, SUB 2 b, SUB 2 c, and SUB 2 dincluded in the second sensor electrode SE 2 may be disposed in the bridge metal layer BML and include the bridge metal BM.Referring to FIG. 10B, the first trace line TL 1 may be electrically connected to at least one of two or more first sub-sensor electrodes SUB 1 a, SUB 1 b, SUB 1 c, and SUB 1 dincluded in the first sensor electrode SE 1. In the display region DA, the first trace line TL 1 may be disposed in the bridge metal layer BML. In other words, in the display area DA, the first trace line TL 1 may include a bridge metal BM.The first trace line TL 1 may overlap the first sensor electrode SE 1 while being electrically connected to the first sensor electrode SE 1. The first trace line TL 1 may overlap the fourth sensor electrode SE 4 while being electrically separated from the fourth sensor electrode SE 4.The second trace line TL 2 may be electrically connected to at least one of two or more second sub-sensor electrodes SUB 2 a, SUB 2 b, SUB 2 c, and SUB 2 dprovided in the second sensor electrode SE 2. In the display region DA, the second trace line TL 2 may be disposed in the bridge metal layer BML. In other words, in the display area DA, the second trace line TL 2 may include a bridge metal BM.The second trace line TL 2 may overlap the second sensor electrode SE 2 while being electrically connected to the second sensor electrode SE 2. The second trace line TL 2 may overlap the fourth sensor electrode SE 4 while being electrically separated from the fourth sensor electrode SE 4.The fourth trace line TL 4, which is electrically connected to the fourth sensor electrode SE 4 and crosses the first sensor electrode SE 1 and the second sensor electrode SE 2, may include a sensor metal SM or a bridge metal BM.FIGS. 11, 12, and 13 are plan views illustrating examples of a trace TL structure in a touch sensor included in a display panel 110 according to embodiments of the disclosure. In the following description, reference is also made to FIG. 3.FIGS. 11 to 13 each show a portion of a first sensor electrode SE1, a second sensor electrode SE2, a third sensor electrode SE3 and a fourth sensor electrode SE4.Referring to FIGS. 11 to 13, the first sensor electrode SE 1 may include a plurality of first sub-sensor electrodes SUB 1 aand SUB 1 belectrically connected by the first bridge BRG 1. The second sensor electrode SE 2 may include a plurality of second sub-sensor electrodes SUB 2 aand SUB 2 belectrically connected by the second bridge BRG 2. The third sensor electrode SE 3 may include a plurality of third sub-sensor electrodes SUB 3 aand SUB 3 belectrically connected by the third bridge BRG 3.Referring to FIGS. 11 to 13, the fourth sensor electrode SE 4 may extend between the plurality of first sub-sensor electrodes SUB 1 aand SUB 1 b, between the plurality of second sub-sensor electrodes SUB 2 aand SUB 2 b, and between the plurality of third sub-sensor electrodes SUB 3 aand SUB 3 b.Referring to FIGS. 11 to 13, the fourth sensor electrode SE 4 may overlap a first bridge BRG 1 electrically connecting the plurality of first sub-sensor electrodes SUB 1 aand SUB 1 b, a second bridge BRG 2 electrically connecting the plurality of second sub-sensor electrodes SUB 2 aand SUB 2 b, and a third bridge BRG 3 electrically connecting the plurality of third sub-sensor electrodes SUB 3 aand SUB 3 b.Referring to FIGS. 11 to 13, the plurality of first sub-sensor electrodes SUB 1 aand SUB 1 bincluded in the first sensor electrode SE 1, the plurality of second sub-sensor electrodes SUB 2 aand SUB 2 bincluded in the second sensor electrode SE 2, and the plurality of third sub-sensor electrodes SUB 3 aand SUB 3 bincluded in the third sensor electrode SE 3 may be disposed in the sensor metal layer SML.In other words, the first sub-sensor electrodes SUB 1 aand SUB 1 b, the second sub-sensor electrodes SUB 2 aand SUB 2 b, and the third sub-sensor electrodes SUB 3 aand SUB 3 bmay include a sensor metal SM formed in the sensor metal layer SML.Referring to FIGS. 11 to 13, the fourth sensor electrode SE 4 may also be disposed in the sensor metal layer SML. In other words, the fourth sensor electrode SE 4 may also include a sensor metal SM formed on the sensor metal layer SML.Referring to FIGS. 11 to 13, the first bridge BRG 1, the second bridge BRG 2, and the third bridge BRG 3 may be disposed in the bridge metal layer BML different from the sensor metal layer SML. In other words, the first bridge BRG 1, the second bridge BRG 2, and the third bridge BRG 3 may include a bridge metal BM formed in the bridge metal layer BML.Referring to FIGS. 11 to 13, the first track line TL 1 may be electrically connected to at least one (e.g., SUB 1 a) of the first sub sensor electrodes SUB 1 aand SUB 1 b. The second trace line TL 2 may be electrically connected to at least one (e.g., SUB 2 a) of the second sub sensor electrodes SUB 2 aand SUB 2 b. The third trace line TL 3 may be electrically connected to at least one (e.g., SUB 3 a) of the third sub sensor electrodes SUB 3 aand SUB 3 b.Referring to FIGS. 11 to 13, the first trace line TL 1, the second trace line TL 2, and the third trace line TL 3 may be disposed on the bridge metal layer BML, which is a metal layer different from the sensor metal layer SML. In other words, the first track line TL 1, the second track line TL 2, and the third track line TL 3 may include a bridge metal BM formed in the bridge metal layer BML.Referring to FIGS. 11 to 13, at least one of the first trace line TL 1, the second trace line TL 2, and the third trace line TL 3 may overlap the fourth sensor electrode SE 4.Referring to FIGS. 11 to 13, the first sensor electrode SE 1, the second sensor electrode SE 2, and the third sensor electrode SE 3 may be reception sensor electrodes SE_RX, and the fourth sensor electrode SE 4 may be a transmission sensor electrode SE_TX.Conversely, the first sensor electrode SE 1, the second sensor electrode SE 2, and the third sensor electrode SE 3 may be transmission sensor electrodes SE_TX, and the fourth sensor electrode SE 4 may be a reception sensor electrode SE_RX.According to the wiring pattern of FIG. 11, each trace line TL may be disposed from the pad region PA to the contact hole CNT electrically connected to the corresponding sensor electrode SE. Accordingly, each trace line TL may overlap at least one sensor electrode SE located on the path on which it is arranged.Referring to FIG. 11, the first trace line TL 1 may extend from the pad region PA to the first contact hole CNT 1 electrically connected to the first sensor electrode SE 1. Accordingly, the first trace line TL 1 may overlap not only the first sensor electrode SE 1 electrically connected to the first trace line TL 1, but also the second sensor electrode SE 2 and the third sensor electrode SE 3 not electrically connected to the first trace line TL 1.Referring to FIG. 11, the second trace line TL 2 may be disposed from the pad region PA to the second contact hole CNT 2 electrically connected to the second sensor electrode SE 2. Accordingly, the second trace line TL 2 may not only overlap the second sensor electrode SE 2 electrically connected to the second trace line TL 2, but may also overlap the third sensor electrode SE 3 not electrically connected to the second trace line TL 2.Referring to FIG. 11, the third trace line TL 3 may extend from the pad region PA to the third contact hole CNT 3 electrically connected to the third sensor electrode SE 3. Accordingly, the third trace line TL 3 may overlap not only the third sensor electrode SE 3 electrically connected to the third trace line TL 3 but also another sensor electrode SE not electrically connected to the third trace line TL 3.The wiring pattern of FIG. 12 is a parasitic capacitance equivalent design pattern for each track line TL. According to the wiring pattern of FIG. 12, each trace line TL may be arranged to extend from the pad region PA via the display region DA to the opposite end of the pad region PA and electrically connected to the corresponding sensor electrode SE in the corresponding contact hole CNT. Accordingly, each track line TL may overlap all of the plurality of sensor electrodes SE located on the path on which it is arranged.Referring to FIG. 12, the first trace line TL 1 may be disposed to extend from the pad region PA to the opposite end of the pad region PA via the display region DA, and may be electrically connected to the first sensor electrode SE 1 in the first contact hole CNT 1. Accordingly, the first trace line TL 1 may overlap not only the first sensor electrode SE 1 electrically connected to the first trace line TL 1, but also the second sensor electrode SE 2 and the third sensor electrode SE 3 not electrically connected to the first trace line TL 1.Referring to FIG. 12, the second trace line TL 2 may be disposed to extend from the pad region PA to the opposite end of the pad region PA via the display region DA, and may be electrically connected to the second sensor electrode SE 2 in the second contact hole CNT 2. Accordingly, the second trace line TL 2 may overlap not only the second sensor electrode SE 2 electrically connected to the second trace line TL 2 but also the first sensor electrode SE 1 and the third sensor electrode SE 3 not electrically connected to the second trace line TL 2. Here, the first sensor electrode SE 1 may be a sensor electrode SE disposed between the opposite end of the pad region PA and the second contact hole CNT 2.Referring to FIG. 12, the third trace line TL 3 may be disposed to extend from the pad region PA to the opposite end of the pad region PA via the display region DA, and may be electrically connected to the third sensor electrode SE 3 in the third contact hole CNT 3. Accordingly, the third trace line TL 3 may overlap not only the third sensor electrode SE 3 electrically connected to the third trace line TL 3 but also the first sensor electrode SE 1 and the second sensor electrode SE 2 not electrically connected to the third trace line TL 3. Here, the first sensor electrode SE 1 and the second sensor electrode SE 2 may be sensor electrodes SE disposed between the opposite end of the pad region PA and the third contact hole CNT 3.According to the wiring structure of FIG. 12, a parasitic capacitance deviation due to each of the first track line TL 1, the second track line TL 2, and the third track line TL 3 can be reduced.The wiring pattern of FIG. 13 is a design pattern equivalent to the load value of each track line TL. Here, the load value may refer to a resistance-capacitance (RC) value obtained by multiplying the resistance and the capacitance.According to the wiring pattern of FIG. 13, each trace line TL may be disposed from the pad region PA to the contact hole CNT electrically connected to the corresponding sensor electrode SE. Accordingly, each trace line TL may overlap at least one sensor electrode SE located on the path on which it is arranged.Referring to FIG. 13, the first trace line TL 1 may extend from the pad region PA to the first contact hole CNT 1 via the display region DA, and is electrically connected to the first sensor electrode SE 1. Accordingly, the first trace line TL 1 may overlap not only the first sensor electrode SE 1 electrically connected to the first trace line TL 1, but also the second sensor electrode SE 2 and the third sensor electrode SE 3 not electrically connected to the first trace line TL 1.Referring to FIG. 13, the second trace line TL 2 may be disposed from the pad region PA to the second contact hole CNT 2 via the display region DA to electrically connect to the second sensor electrode SE 2. Accordingly, the second trace line TL 2 may overlap not only the second sensor electrode SE 2 electrically connected to the second trace line TL 2 but also the third sensor electrode SE 3 not electrically connected to the second connection electrode TL 2 without overlapping the first sensor electrode SE 1.Referring to FIG. 13, the third trace line TL 3 may be disposed across the display region DA from the pad region PA to the third contact hole CNT 3 to establish an electrical connection with the third sensor electrode SE 3. Accordingly, the third trace line TL 3 may not only overlap the third sensor electrode SE 3 electrically connected to the third trace line TL 3, but may also overlap another sensor electrode SE not electrically connected to the third trace line TL 3 without overlapping the first sensor electrode SE 1 and the second sensor electrode SE 3.Referring to FIG. 13, the second trace line TL 2 may include a first meander portion MP 1. At least a portion of the first meander portion MP 1 may overlap the area occupied by the second sensor electrode SE 2.For example, the first meander portion MP 1 included in the second trace line TL 2 may be a meandering trace portion in the second trace line TL 2, a bent trace portion in the second trace line TL 2, or a twisted trace portion in the second trace line TL 2, and may also be referred to as a curved portion or a bent portion. That is, the first meander portion MP 1 includes a plurality of parts each extending along one of the first direction, the second direction, or a third direction different from the first direction and the second direction in the display area DA.Accordingly, the deviation between the load value of the second track line TL 2 and the load value of the first track line TL 1 can be reduced when the length of the second track line TL 2 is compensated. The second sensor electrode SE 2 may have a load value corresponding to the load value of the first sensor electrode SE 1 through the first meander portion MP 1 of the second trace line TL 2.For example, when the capacitance (parasitic capacitance) between the second trace line TL 2 and the peripheral electrodes (e.g., SE 3) is the same as the capacitance (parasitic capacitance) between the first trace line TL 1 and the peripheral electrodes (e.g., SE 2 and SE 3), when the resistance of the second trace line TL 2 is the same (e.g., substantially matches) as the resistance of the first trace line TL 1, the load value through the second trace line TL 2 and the load value through the first trace line TL 1 may be the same. According to the wiring design for compensating the resistance of the second track line TL 2 to be equal to the resistance of the first track line TL 1, the total length of the second track line TL 2 in the display area DA may be equal to or similar to the total length of the first track line TL 1 through the meander portion MP 1.As another example, as shown in FIG. 13, the capacitance (parasitic capacitance) between the second trace line TL 2 and the peripheral electrodes (e.g., SE 3) may be smaller than the capacitance (parasitic capacitance) between the first trace line TL 1 and the peripheral electrodes (e.g., SE 2 and SE 3) when the first contact hole CNT 1 is farther from the pad region PA than the second contact hole CNT 2. In this case, when the resistance of the second track line TL 2 becomes larger than the resistance of the first track line TL 1, the load value through the second track line TL 2 and the load value through the first track line TL 1 may be equal to or substantially equal to each other. According to a configuration in which the resistance of the second trace line TL 2 is greater than the resistance of the first trace line TL 1, the total length of the second trace line TL 2 in the display area DA around the meander portion MP 1 may be greater than the total length of the first trace line TL 1.Referring to FIG. 13, the first trace line TL 1 may not include a meander portion. Alternatively, the first track line TL 1 may include a meander portion. When the first trace line TL 1 includes the meander portion, when the meander portion of the first trace line TL 1 is straightened, the length of the meander portion may be shorter than the length of the first meander portion MP 1 when the first meander portion MP 1 of the second trace line TL 2 is straightened.Referring to FIG. 13, the third trace line TL 3 may include a second meander portion MP 2. The second meander portion MP 2 may be arranged in the area occupied by the third sensor electrode SE 3.The second meander portion MP 2 included in the third track line TL 3 may be, for example, a meandering line portion in the third track line TL 3, a bent line portion in the third track line TL 3, or a twisted line portion in the third track line TL 3.The third sensor electrode SE 3 may be disposed closer to the pad region PA than the second sensor electrode SE 2. In view of this, the length of the second meander portion MP 2 when the second meander portion MP 2 of the third trace line TL 3 is straightened may be larger than the length of the first meander portion MP 1 when the first meander portion MP 1 of the second trace line TL 2 is straightened.Referring to FIG. 13, the first meander portion MP 1 of the second trace line TL 2 may overlap the fourth sensor electrode SE 4. The second meander portion MP 2 of the third trace line TL 3 may overlap with the fourth sensor electrode SE 4.FIG. 14 illustrates a touch driver circuit 160 according to embodiments of the disclosure.Referring to FIG. 14, the touch driving circuit 160 according to embodiments of the disclosure may include: a driving unit 1410 (e.g., a circuit) configured to output a touch driving signal TDS whose voltage level changes to at least one of the plurality of transmission pads PD_TX; and a sensing unit 1420 (e.g., a circuit) configured to sense at least one of the plurality of reception pads PD_RX.The driving unit 1410 may include, for example, an output buffer including an amplifier or the like.The sensing unit 1420 may include, for example, at least one charge amplifier including an operational amplifier and a feedback capacitor, and an analog-to-digital converter. For example, the sensing unit 1420 may further include at least one integrator for integrating the output signals of the at least one charge amplifier.For example, the sensing unit 1420 may further include a first selection circuit to select at least one of a plurality of transmission pads PD_TX. The first selection circuit may include a switch circuit, a multiplexer circuit, or the like.For example, the sampling unit 1420 may further include: a sample and hold circuit for storing a plurality of integral values output from the plurality of integrators, and a second selection circuit for selecting at least one of the plurality of integral values stored in the sample and hold circuit and for providing the selected integral value to an analog-to-digital converter. The second selection circuit may include a switch circuit, a multiplexer circuit, or the like.The touch driving circuit 160 may further include a signal generator for generating the touch driving signal TDS.FIG. 15 is a plan view showing a substrate 111 and an encapsulation layer 200 according to embodiments of the disclosure. In the following description, reference is also made to FIG. 3.A display panel 110 according to embodiments of the disclosure may include a substrate 111 including a display region DA in which a plurality of subpixels SP are arranged, and a non-display region NDA including a pad region PA arranged in a first direction from the display region DA, a light emitting element ED arranged on the substrate 111 and arranged in the display region DA, an encapsulation layer 200 arranged on the light emitting element ED, a first sensor electrode SE 1 arranged in the display region DA and arranged on the encapsulation layer 200, a second sensor electrode SE 2 arranged in the display region DA and arranged on the encapsulation layer 200, a first pad PD 1 arranged in the pad region PA, a second pad PD 2 disposed in the pad region PA, a first trace line TL 1 electrically connecting the first sensor electrode SE 1 and the first pad PD 1 and extending over the display region DA to the pad region PA in the first direction, and a second trace line TL 2 electrically connecting the second sensor electrode SE 2 and the second pad PD 2 and extending over the display region DA to the pad region PA in the first direction.Referring to FIG. 15, the non-display area NDA may include a first non-display area NDA 1 (e.g., a first part) arranged in the first direction of the display area DA, a second non-display area NDA 2 (e.g., a second part) arranged in the second direction of the display area DA, a third non-display area NDA 3 (e.g., a third part) arranged in a direction opposite to the first direction of the display area DA, and a fourth non-display area NDA 4 (e.g., a fourth part) arranged in a direction opposite to the second direction of the display area DA.Referring to FIG. 15, the encapsulation layer 200 may be disposed in the display region DA and may extend to a partial region of the non-display region NDA.Referring to FIG. 15, the encapsulation layer 200 may include a first inclined surface SLP 1 disposed outside in the first direction with respect to a center, a second inclined surface SLP 2 disposed outside in the second direction crossing the first direction with respect to the center, a third inclined surface SLP 3 disposed outside in a direction opposite to the first direction with respect to the center, and a fourth inclined surface SLP 4 disposed outside in a direction opposite to the second direction with respect to the center. The term "center" in this embodiment refers to, for example, the center of the display panel, the substrate, or the display area. That is, the encapsulation layer 200 includes: the first inclined surface SLP 1 at a first part of the non-display region (e.g., NDA 1) adjacent to a first side of the display region DA extending in the second direction, a second inclined surface SLP 2 at a second part of the non-display region NDA 2 adjacent to a second side of the display region DA extending in the first direction, a third inclined surface SLP 3 at a third part of the non-display region NDA 3 adjacent to a third side of the display region extending in the second direction and spaced apart from the first side of the display region DA in the first direction, and a fourth inclined surface SLP 4 at a fourth part of the non-display area NDA 4 that is adjacent to a fourth side of the display area DA extending in the first direction and spaced apart from the second side of the display area DA in the second direction.The first inclined surface SLP 1, the second inclined surface SLP 2, the third inclined surface SLP 3, and the fourth inclined surface SLP 4 of the encapsulation layer 200 may be disposed in the non-display region NDA.Among the first inclined surface SLP 1, the second inclined surface SLP 2, the third inclined surface SLP 3, and the fourth inclined surface SLP 4 of the encapsulation layer 200, a metal (e.g., a trace line) may not be disposed on the second inclined surface SLP 2 and the fourth inclined surface SLP 4, and a trace line TL including the first trace line TL 1 disposed to extend in the first direction may extend on the first inclined surface SLP 1. That is, the track lines (e.g., TL 1, TL 2, etc.) overlap the first inclined surface SLP 1 without overlapping the remaining inclined surfaces SLP 2 to SLP 4.In the case of the touch sensors of FIGS. 3, 4, and 5, for example, the first direction extending track lines including the first track line TL 1 at the first slope SLP 1 may be receiving track lines TL_RX.As another example, in the case of the touch sensor of FIG. 6, the first direction extending tracking lines including the first tracking line TL 1 on the first inclined surface SLP 1 may be transmission tracking lines TL_TX.Referring to FIG. 15, the first non-display region NDA 1 may include the pad region PA. The pad region PA may include, for example, pads to which the driving circuit is electrically connected, or may include pads to which a circuit film or a circuit board on which the driving circuit is mounted is electrically connected. The driving circuit may include, for example, a touch driving circuit 160. The driving circuit may further include the data driving circuit 120.For example, when the driving circuit is of a chip-on-glass (COG) type, the pad region may include PA pads to which the driving circuit is electrically connected. As another example, when the driving circuit is of a chip-on-foil (COF) type, the pad region PA may include pads to which the circuit film (also referred to as a flexible printed circuit (FPC)) on which the driving circuit is mounted is electrically connected.Referring to FIG. 15, the first non-display region NDA 1 may further include a bending region BA. In this case, the substrate 111 may be a flexible substrate. In some cases, the first non-display area NDA 1 may not include the bending area BA.FIGS. 16, 17, and 18 are cross-sectional views illustrating principal points of a display panel 110 according to embodiments of the disclosure. However, FIGS. 16 to 18 show an example in which a bending region BA is included in the first non-display region NDA1.FIGS. 16 and 17 are cross-sectional views showing a region including the first non-display region NDA 1 and a portion of the display region DA adjacent thereto. FIG. 16 shows a vertical cross-sectional structure for a path in which the fourth sensor electrode SE 4 and the fourth pad PD 4 are connected by the fourth trace line TL 4 in FIG. 3. FIG. 17 shows a vertical cross-sectional structure for a path in which the fifth sensor electrode SE 5 and the fifth pad PD 5 are connected by the fifth trace line TL 5 in FIG. 3.FIG. 18 is a cross-sectional view showing a region including the second non-display region NDA 2 or the fourth non-display region NDA 4 and a portion of the display region DA adjacent thereto. FIG. 18 shows a vertical cross-sectional structure for a region where the first sensor electrode SE 1 and the first trace line TL 1 are connected.Referring to FIG. 16, a substrate 111 may include a display region DA and a first non-display region NDA 1 that is an outer region of the display region DA in the first direction, and the first non-display region NDA 1 may include a bending region BA and a pad region PA.A first transistor T 1 may be disposed on the substrate 111. The first transistor T 1 may include a first electrode E 1, a second electrode E 2, a third electrode E 3, and an active layer ACT. The second electrode E 2 may be a gate electrode, the first electrode E 1 may be a source electrode or a drain electrode, and the third electrode E 3 may be a drain electrode or a source electrode.For example, when the first transistor T 1 has a coplanar structure, the active layer ACT may be disposed on the substrate 111, the gate insulating layer 1610 may be disposed on the active layer ACT, and the second electrode E 2 corresponding to the gate electrode may be disposed on the gate insulating layer 1610. An interlayer insulating film 1630 may be disposed on the second electrode E 2. The first electrode E 1 and the third electrode E 3 may be disposed on the interlayer insulating film 1630. The first electrode E 1 may be connected to a portion of the active layer ACT through a contact hole of the interlayer insulating film 1630. The third electrode E 3 may be connected to another portion of the active layer ACT through another contact hole of the interlayer insulating film 1630.A planarization film 1650 may be disposed on the first transistor T 1.The pixel electrode PE may be disposed on the planarization film 1650. The pixel electrode PE may be connected to the first electrode E 1 of the first transistor T 1 through a contact hole of the planarization film 1650.A bank 1660 may be disposed on the pixel electrode PE. The bank 1660 may have an opening in a region where a light emission region of the light emitting element ED of the subpixel SP should be formed.An element interlayer EL may be disposed on the bank 1660. A portion of the element intermediate layer EL may be connected to a partial upper surface of the pixel electrode PE through an opening of the bank 1660.The common electrode CE may be disposed on the element interlayer EL.An encapsulation layer 200 may be disposed on the common electrode CE. The encapsulation layer 200 may be a single film or a multilayer film.For example, when the encapsulation layer 200 includes a plurality of films, the encapsulation layer 200 may have a structure in which an inorganic film and an organic film are alternately stacked. For example, the encapsulation layer 200 may include a first encapsulation layer 1671, a second encapsulation layer 1672, a third encapsulation layer 1673, and the like, and the first encapsulation layer 1671 and the third encapsulation layer 1673 may be inorganic films, and the second encapsulation layer 1672 may be organic films. The second encapsulation layer 1672 may be thicker than the first encapsulation layer 1671 and the third encapsulation layer 1673.The encapsulation layer 200 may extend from the display region DA to a partial region of the first non-display region NDA 1.The first encapsulation layer 1671 may be disposed on the common electrode CE, and the first encapsulation layer 1671 may be disposed to cover the common electrode CE. The first encapsulation layer 1671 may cover the common electrode CE and extend to the first non-display region NDA 1 to cover at least one bank D 1 and D 2. The first encapsulation layer 1671 may extend to the pad region PA disposed outside the at least one bank D 1 and D 2 to overlap the pad PD 4.The second encapsulation layer 1672 may be disposed on the first encapsulation layer 1671. The second encapsulation layer 1672 may be formed to have a sufficient thickness to prevent intrusion of impurities (particles) into the common electrode CE and the element intermediate layer EL including an organic material through the first encapsulation layer 1671. The second encapsulation layer 1672 may be formed by a curing process after being deposited in liquid form by an inkjet process.The third encapsulation layer 1673 may be disposed on the second encapsulation layer 1672. The third encapsulation layer 1673 may be disposed to cover the second encapsulation layer 1672. The third encapsulation layer 1673 may cover the second encapsulation layer 1672 and extend to the first non-display region NDA 1 to cover at least one bank D 1 and D 2. Further, the third encapsulation layer 1673 may extend to the pad region PA disposed outside the at least one bank D 1 and D 2 to overlap the pad PD 4. In this case, the first encapsulation layer 1671 and the third encapsulation layer 1673 may be formed to have the same end position.The first encapsulation layer 1671 and the third encapsulation layer 1673 may be formed of, for example, silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, or titanium oxide, respectively.The second encapsulation layer 1672 may be formed of, for example, an acrylic resin, an epoxy resin, a phenol resin, a polyamide resin, or a polyimide resin.A touch sensor may be formed on the encapsulation layer 200. The touch sensor forming layer on the encapsulation layer 200 may include a touch buffer film 1010 (omitted in FIG. 16 ), a bridge metal layer BML, a touch interlayer insulating film 1020, a sensor metal layer SML, and a touch protection film 1030.To form a touch sensor, the touch buffer film 1010 may be disposed on the encapsulation layer 200 as shown in FIGS. 10A and 10B, and the touch buffer film 1010 may be omitted on the encapsulation layer 200 as shown in FIG. 16.The metal layer directly over the touch buffer film 1010 and the encapsulation layer 200 may be the bridge metal layer BML. The insulating film directly over the bridge metal layer BML may be the touch interlayer insulating film 1020. The metal layer directly above the touch interlayer insulating film 1020 may be the sensor metal layer SML.According to the example of FIG. 16, a fifth bridge BRG 5 formed of a bridge metal BM may be disposed on the encapsulation layer 200. The touch interlayer insulating film 1020 may be disposed on the fifth bridge BRG 5. A fourth sensor electrode SE 4 formed of the sensor metal SM may be disposed on the touch interlayer insulating film 1020.Referring to FIG. 16, the portion extending to the first non-display area NDA 1 in the fourth sensor electrode SE 4 may be the fourth trace line TL 4. Accordingly, the fourth trace line TL 4 may be formed of a sensor metal SM.The fourth trace line TL 4 may extend along the first inclined surface SLP 1 of the encapsulation layer 200 and extend to the pad region PA of the first non-display region NDA 1.The touch protection film 1030 may be disposed on the sensor electrodes SE including the fourth sensor electrode SE 4 and the fifth sensor electrode SE 5. The touch protection film 1030 may protect the touch sensor and stabilize the characteristics of the display device 100 by blocking a harmful environment from the outside. For example, the touch protection film 1030 may be an organic film. The touch protection film 1030 may be disposed to extend to the non-display area NDA.The display panel 110 may include a dam region DAM located in the non-display region NDA and arranged to surround the display region DA. In the dam area DAM, at least one dam D 1 or D 2 may be disposed.The at least one bank D 1 or D 2 may be included in the encapsulation layer 200 and block the flow of the second encapsulation layer 1672, which may be an organic film. In other words, the at least one bank D 1 or D 2 may prevent the second encapsulation layer 1672, which may be an organic film, from collapsing. Accordingly, the at least one bank D 1 or D 2 may prevent the second encapsulation layer 1672, which is an organic film, from being exposed from the outside of the display device 100 or entering the pad region PA.At least one bank D 1 and D 2 may be disposed.The first bank D 1 may be disposed near an outer point of the second encapsulation layer 1672 included in the encapsulation layer 200. The first bank D 1 may be disposed to surround the outer periphery of the display region DA to mainly block the flow of the second encapsulation layer 1672. Further, the first bank D 1 may be disposed between the display region DA and the pad region PA to primarily block the flow of the second encapsulation layer 1672 and prevent the second encapsulation layer 1672 from entering the pad region PA.The second bank D 2 may be disposed to surround the outer periphery of the first bank D 1, and may be disposed adjacent to the first bank D 1 to be spaced apart from the first bank D 1. The second bank D 2 may secondaryally block a flow of the second encapsulation layer 1672 to the outer periphery of the first bank D 1. Accordingly, the first bank D 1 and the second bank D 2 may more effectively prevent the second encapsulation layer 1672 from getting to the outside of the display device 100 or entering the pad region PA.The at least one bank D 1 or D 2 may be formed simultaneously with the planarization film 1650 or the bank 1660, and may be formed of the same material as the planarization film 1650 or the bank 1660. In this case, the at least one bank D 1 or D 2 may be formed of an organic material such as an acrylic resin, an epoxy resin, a phenol resin, a polyamide resin, a polyimide resin, or the like.The fourth trace line TL 4 may be formed to extend from the top surface of the encapsulation layer 200 to an upper portion of the at least one bank D 1 and D 2 and may be electrically connected to the first connection pattern 1640 aarranged thereunder through the contact hole TCT being a contact hole of the touch interlayer insulating film 1020. Accordingly, the fourth trace line TL 4 may not be disposed in the bending region BA.The fourth track line TL 4 may be electrically connected to the fourth pad PD 4 in the pad area PA via the first connection pattern 1640 a, the second connection pattern 1620 a, and the third connection pattern 1641 a. Here, the touch driving circuit 160 may be directly or indirectly connected to the fourth pad PD 4.The first connection pattern 1640 aand the third connection pattern 1641 amay include the same material as the source-drain electrode of the first transistor T 1. The second connection pattern 1620 amay include the same material as the gate electrode or the gate line GL of the first transistor T 1.A bending film 1651 may be disposed on a portion of the third connection pattern 1641 a, and a pattern protection film 1652 may be disposed on another portion of the third connection pattern 1641 a.The bending film 1651 may be disposed in the bending area BA, may be disposed between the dams D 1 and D 2 and the pad PD 4, and may be disposed to cover an upper portion of a portion of the third connection pattern 1641 a. The bending film 1651 can prevent and protect the third connection pattern 1641 afrom being exposed to the outside in the bending region BA in which the substrate 111 is bent. Further, the bending film 1651 may be provided with an open hole OH through which an upper portion thereof is exposed. In other words, the open hole OH may be formed by removing inorganic films (e.g., the first encapsulation layer 1671, the third encapsulation layer 1673, and the touch interlayer insulating film 1020) that may be disposed on the bending film 1651. When the inorganic film is disposed on the bending film 1651, a crack may be generated in the inorganic film when the bending portion BA is bent, and moisture or the like may enter the inorganic film in which the crack is generated. Therefore, the inorganic films provided on the bending film 1651 are removed.The pattern protection film 1652 may be disposed so as to surround an end of the third connection pattern 1641 a. The pattern protection film 1652 may protect an end of the third connection pattern 1641 adisposed at an edge of the first non-display region NDA 1.The bending film 1651 and the pattern protection film 1652 may be disposed on the same layer as the planarization film 1650, and may be formed of the same material.For example, the planarization film 1650, the bending film 1651, and the pattern protection film 1652 may be formed of an organic film such as an acrylic resin, an epoxy resin, a phenol resin, a polyamide resin, a polyimide resin, or the like.In the pad region PA, the fourth pad PD 4 may be electrically connected to the third connection pattern 1641 athrough a pad via hole PCT penetrating the first encapsulation layer 1671, the third encapsulation layer 1673, and the touch interlayer insulating film 1020.Next, a vertical cross-sectional structure of a path through which the fifth sensor electrode SE 5 and the fifth pad PD 5 are connected by the fifth trace line TL 5 will be described with reference to FIG. 17 The following description will focus primarily on the differences, and the same content as the vertical cross-sectional structure of FIG. 16 will be omitted in the description.Referring to FIG. 17, the fifth sensor electrode SE 5 disposed in the display area DA may include a fifth bridge BRG 5 electrically connecting the plurality of fifth sub-sensor electrodes SUB 5 aand SUB 5 band the plurality of fifth sub-sensor electrodes SUB 5 aand SUB 5 b.The fifth bridge BRG 5 may overlap the fourth sensor electrode SE 4.The plurality of fifth sub-sensor electrodes SUB 5 aand SUB 5 bincluded in the fifth sensor electrode SE 5 and the fourth sensor electrode SE 4 may be disposed in the sensor metal layer SML. In other words, the plurality of fifth sub-sensor electrodes SUB 5 aand SUB 5 bincluded in the fifth sensor electrode SE 5 and the fourth sensor electrode SE 4 may include the sensor metal SM.The fifth bridge BRG 5 may be disposed in the bridge metal layer BML. In other words, the fifth bridge BRG 5 may be formed of a bridge metal BM.The fifth trace line TL 5 electrically connected to one (e.g., SUB 5 a) of the plurality of fifth sub sensor electrodes SUB 5 aand SUB 5 bincluded in the fifth sensor electrode SE 5 may be disposed in the bridge metal layer BML. In other words, the fifth trace line TL 5 may be formed of a bridge metal BM.The fifth trace line TL 5 may extend along the first inclined surface SLP 1 of the encapsulation layer 200 and extend to the pad region PA.The fifth trace line TL 5 may be formed to extend from the top surface of the encapsulation layer 200 to an upper portion of the at least one bank D 1 and D 2, and may be electrically connected to the fourth connection pattern 1640 bdisposed thereunder through the contact hole TCT, which is a contact hole of the touch interlayer insulating film 1020. Accordingly, the fifth trace line TL 5 may not be disposed in the bending region BA.The fifth track line TL 5 may be electrically connected to the fifth pad PD 5 in the pad area PA via the fourth connection pattern 1640 b, the fifth connection pattern 1620 b, and the sixth connection pattern 1641 b. Here, the touch driving circuit 160 may be directly or indirectly connected to the fifth pad PD 5.The fourth connection pattern 1640 band the sixth connection pattern 1641 bmay include the same material as the source-drain electrode of the first transistor T 1. The fifth connection pattern 1620 bmay include the same material as the gate electrode or the gate line GL of the first transistor T 1.Referring to FIG. 17, the touch protection film 1030 may be disposed on the sensor electrodes SE including the fourth sensor electrode SE 4 and the fifth sensor electrode SE 5. The touch protection film 1030 may protect the touch sensor and stabilize the characteristics of the display device 100 by blocking a harmful environment from the outside. Further, the touch protection film 1030 may be disposed between the transmission sensor electrode (e.g., the fourth sensor electrode SE 4) and the reception sensor electrode (e.g., the fifth sensor electrode SE 5), and on the sensor electrodes SE including the fourth sensor electrode SE 4 and the fifth sensor electrode SE 5. Accordingly, the transmission sensor electrode (e.g., the fourth sensor electrode SE 4) may be insulated from the reception sensor electrode (e.g., the fifth sensor electrode SE 5) by the touch protection film 1030.A vertical structure for a region including the second non-display region NDA 2 and the fourth non-display region NDA 4 and a portion of the display region DA adjacent thereto will be described below with reference to FIG. 18. For this purpose, for example, a vertical cross-sectional structure of a region in which the first sensor electrode SE 1 and the first trace line TL 1 are connected will be described. The following description focuses primarily on the differences, and the same contents as those of the vertical cross-sectional structure of FIG. 16 will be omitted from the description.Referring to FIG. 18, the second non-display region NDA 2 and the fourth non-display region NDA 4 may not include a bending region BA and a pad region PA. Accordingly, the sizes of the second non-display area NDA 2 and the fourth non-display area NDA 4 can be reduced.Further, the trace line TL is not disposed in the second non-display area NDA 2 and the fourth non-display area NDA 4 of the display panel 110 according to embodiments of the disclosure. Accordingly, an extremely narrow bezel structure of the display panel 110 may be possible.Referring to FIG. 18, the first sensor electrode SE 1 disposed in the display region DA may include a plurality of first sub-sensor electrodes SUB 1 aand SUB 1 band a first bridge BRG 1 electrically connecting the plurality of first sub-sensor electrodes SUB 1 aand SUB 1 b.The first bridge BRG 1 may overlap the fourth sensor electrode SE 4.The plurality of first sub-sensor electrodes SUB 1 aand SUB 1 bincluded in the first sensor electrode SE 1 and the fourth sensor electrode SE 4 may be disposed in the sensor metal layer SML. In other words, the plurality of first sub-sensor electrodes SUB 1 aand SUB 1 bincluded in the first sensor electrode SE 1 and the fourth sensor electrode SE 4 may include the sensor metal SM.The first bridge BRG 1 may be disposed in the bridge metal layer BML. In other words, the first bridge BRG 1 may be formed of a bridge metal BM.The first trace line TL 1 electrically connected to one (e.g., SUB 1 a) of the plurality of first sub sensor electrodes SUB 1 aand SUB 1 bincluded in the first sensor electrode SE 1 may be disposed in the bridge metal layer BML. In other words, the first trace line TL 1 may be formed of a bridge metal BM.The first trace line TL 1 may extend to the first non-display area NDA 1 via the display area DA without bypassing the second non-display area NDA 2 and the fourth non-display area NDA 4, and may be connected to the first pad P 1 in the pad area PA included in the first non-display area NDA 1.Accordingly, the first trace line TL 1 may not be disposed on the second inclined surface SLP 2 and the fourth inclined surface SLP 4 of the encapsulation layer 200, but may be disposed along the first inclined surface SLP 1 of the encapsulation layer 200 to extend to the pad region PA.Referring to FIG. 18, when the first trace line TL 1 crosses the display area DA without bypassing the second non-display area NDA 2 and the fourth non-display area NDA 4, the first trace line TL 1 may be arranged to bypass the light emission area EA of each of the plurality of subpixels SP in the display area DA. In other words, the first track line TL 1 may overlap the bank 1660 without overlapping the light emission area EA of each of the plurality of subpixels SP. Accordingly, it is possible to design an internal wiring structure without degrading light emitting performance.Referring to FIG. 18, the first sensor electrode SE 1 electrically connected to the first trace line TL 1 and the first trace line TL 1 may not overlap the light emission area EA of each of the plurality of subpixels SP but overlap the bank 1660.Embodiments of the disclosure described above will be briefly described below.A display device according to embodiments of the disclosure may include a substrate including a display region in which a plurality of sub-pixels are arranged and a non-display region including a pad region arranged in a first direction from the display region, a first sensor electrode arranged in the display region and extending in a second direction crossing the first direction, a second sensor electrode arranged in the display region and extending in the second direction, a first pad arranged in the pad region, a second pad arranged in the pad region, a first trace electrically connecting the first sensor electrode and the first pad, and a second trace electrically connecting the second sensor electrode and the second pad.The second sensor electrode may be disposed closer to the pad region than the first sensor electrode.The first trace may overlap with the second sensor electrode, and the second trace may include a first meander portion.The first track line and the second track line may be electrically connected to the first pad and the second pad in the pad region via the display region in the first direction.The first track line may not have a meandering section or may have a meandering section which is shorter than the first meandering section of the second track line.The second sensor electrode may have a load value corresponding to the load value of the first sensor electrode through the first meander portion of the second trace line.The first meander section can be arranged in a region occupied by the second sensor electrode.The display device according to embodiments of the disclosure may further include: a third sensor electrode disposed in the display region and extending in the second direction; a third pad disposed in the pad region; and a third trace line electrically connecting the third sensor electrode and the third pad.The third sensor electrode may be disposed closer to the pad region than the second sensor electrode.The first trace line and the second trace line may each overlap the third sensor electrode, and the third trace line may have a second meander portion.The second meander section may be longer than the first meander section.The first sensor electrode may include: two first sub-sensor electrodes arranged in the second direction; and a first bridge electrically connecting the two first sub-sensor electrodes.The second sensor electrode may include: two second sub-sensor electrodes arranged in the second direction; and a second bridge electrically connecting the two second sub-sensor electrodes.The display device according to embodiments of the disclosure may further include: a fourth sensor electrode disposed to extend between the two first sub-sensor electrodes and between the two second sub-sensor electrodes and overlap the first bridge and the second bridge; a fourth pad disposed in the pad region; and a fourth trace electrically connecting the fourth sensor electrode and the fourth pad.The first meander portion may overlap the fourth sensor electrode.The two first sub-sensor electrodes, the two second sub-sensor electrodes and the fourth sensor electrode may be arranged in a sensor metal layer.The first bridge and the second bridge may be disposed in a bridge metal layer that is a metal layer other than the sensor metal layer.The first trace line and the second trace line may be disposed in the bridge metal layer in the display region.The fourth trace may include a sensor metal or a bridge metal. In other words, the fourth trace line may be disposed in the sensor metal layer or the bridge metal layer.In the first non-display area, the fourth trace line may or may not cross the first trace line and the second trace line.When the fourth trace line crosses the first trace line and the second trace line in the first non-display region, the fourth trace line may be disposed in a metal layer (e.g., the sensor metal layer) other than the bridge metal layer.When the fourth trace line does not cross the first trace line and the second trace line in the first non-display region, the fourth trace line may be disposed in any metal layer (e.g., the bridge metal layer or the sensor metal layer).The two first sub-sensor electrodes included in the first sensor electrode, the two second sub-sensor electrodes included in the second sensor electrode, and the fourth sensor electrode may each include a mesh-shaped sensor metal.The two first sub-sensor electrodes included in the first sensor electrode, the two second sub-sensor electrodes included in the second sensor electrode, and the fourth sensor electrode may each have a comb-tooth shape.The first bridge and the second bridge may include a bridge metal disposed in a metal layer other than the sensor metal.The first bridge and the second bridge may be disposed to be bent or curved along the mesh-shaped sensor metal of the fourth sensor electrode.In the display area, the second trace line may be electrically separated from the first sensor electrode and overlap the first sensor electrode.The display device according to embodiments of the disclosure may further include: a fourth sensor electrode disposed in the display region and extending in the first direction; a fifth sensor electrode disposed in the display region and extending in the second direction; a fourth pad disposed in the pad region; a fifth pad disposed in the pad region; a fourth trace electrically connecting the fourth sensor electrode and the fourth pad; and a fifth trace electrically connecting the fifth sensor electrode and the fifth pad.The fifth sensor electrode may be disposed closer to the pad region than the first sensor electrode and the second sensor electrode.In the display area, the first trace line and the second trace line may each be electrically separated from the fifth sensor electrode, and may overlap the fifth sensor electrode.The fourth sensor electrode may cross the first sensor electrode, the second sensor electrode, and the fifth sensor electrode.The fourth sensor electrode may be disposed between the first trace line and the fifth trace line.The first pad, the second pad, the third pad, and the fifth pad may be receiving pads, and the fourth pad may be a transmitting pad. Alternatively, the first pad, the second pad, the third pad, and the fifth pad may be transmission pads, and the fourth pad may be a reception pad.For example, the receiving pads may be arranged to be collected and the transmitting pads may be arranged to be collected. In this case, the fifth pad may be disposed between the first pad and the fourth pad. The fifth trace line may cross the fourth trace line. The fifth trace may be disposed in a metal layer other than the fourth trace.As another example, the receive pads and the transmit pads may be mixed and arranged. In this case, the fourth pad may be disposed between the first pad and the fifth pad. The fifth trace line may not cross the fourth trace line. The fifth trace may be disposed in a metal layer that is identical to or different from the fourth trace.The number of the first trace lines connected to the first sensor electrode may be larger than the number of the fifth trace lines connected to the fifth sensor electrode.The first sensor electrode, the second sensor electrode, the third sensor electrode, and the fifth sensor electrode may be arranged in parallel with each other. The fourth sensor electrode may cross the first sensor electrode, the second sensor electrode, the third sensor electrode, and the fifth sensor electrode.When the fourth sensor electrode is a transmission sensor electrode, and the first sensor electrode, the second sensor electrode, the third sensor electrode, and the fifth sensor electrode are reception electrodes, the fourth sensor electrode may be supplied with a signal (touch driving signal for touch sensing) whose voltage level is varied by a circuit.When the first sensor electrode, the second sensor electrode, the third sensor electrode, and the fifth sensor electrode are transmitting electrodes, and the fourth sensor electrode is a receiving sensor electrode, each of the first sensor electrode, the second sensor electrode, the third sensor electrode, and the fifth sensor electrode may be supplied from a circuit with a signal (touch driving signal for touch sensing) whose voltage level is varied.A display panel according to embodiments of the disclosure may include a substrate including a display region in which a plurality of sub-pixels are arranged and a non-display region including a pad region arranged in a first direction from the display region, a light emitting element arranged on the substrate and arranged in the display region, an encapsulation layer arranged on the light emitting element, first to third sensor electrodes arranged in the display region are arranged on the encapsulation layer and each extend in a second direction crossing the first direction, a fourth sensor electrode arranged in the display region is arranged on the encapsulation layer and crosses the first to third sensor electrodes, first to fourth pads arranged in the pad region, a first trace line, electrically connecting the first sensor electrode and the first pad and electrically connected to the first pad via the display area in the first direction, a second trace electrically connecting the second sensor electrode and the second pad and electrically connected to the second pad via the display area in the first direction, a third trace electrically connecting the third sensor electrode and the third pad and electrically connected to the third pad via the display area in the first direction, and a fourth trace electrically connecting the fourth sensor electrode and the fourth pad.The encapsulation layer may include a first inclined surface disposed outward in the first direction with respect to a center, a second inclined surface disposed outward in the second direction crossing the first direction with respect to the center, a third inclined surface disposed outward in a direction opposite to the first direction with respect to the center, and a fourth inclined surface disposed outward in a direction opposite to the second direction with respect to the center.The first inclined surface, the second inclined surface, the third inclined surface, and the fourth inclined surface may be disposed in the non-display region.No metal may be disposed on the second inclined surface and the fourth inclined surface, and the first trace may extend over the first inclined surface.The second sensor electrode may be disposed closer to the pad region than the first sensor electrode. The first trace line may overlap the second sensor electrode, and the second trace line may include a first meander portion.The first meander section can be arranged in a region occupied by the second sensor electrode. The first meander portion may overlap the second sensor electrode.According to the above-described embodiments of the disclosure, a display device and a display panel having a narrow aperture may be provided.According to an embodiment of the disclosure, a display device and a display panel may be provided having a touch sensor structure that enables a narrow aperture.According to an embodiment of the disclosure, a display device and a display panel may be provided that include a touch sensor that may have high touch sensitivity and at the same time, have a narrow aperture. According to an embodiment of the disclosure, a display device and a display panel may be provided having a stacked structure for the touch sensor capable of reducing the size of the aperture and increasing the touch sensitivity.According to an embodiment of the disclosure, a display device and a display panel including a touch sensor that can reduce noise between sensor electrodes may be provided.According to embodiments of the disclosure, the use of materials corresponding to the reduced aperture size may be reduced because the aperture size is significantly reduced. This may help reduce the weight of the display device.The embodiments described above are merely examples, and one skilled in the art will understand that various changes may be made thereto without departing from the scope of the disclosure. Accordingly, the embodiments illustrated herein are provided for illustrative purposes, but not to limit the scope of the disclosure, and it should be appreciated that the scope of the disclosure is not limited by the embodiments.

Claims

A display device (100) comprising: a substrate (111) including: a display region (DA) including a plurality of sub-pixels (SP) and a non-display region (NDA) including a pad region (PA) spaced apart from the display region (DA) in a first direction; first to third sensor electrodes (SE1, SE2, SE3) disposed in the display region (DA) such that the second sensor electrode (SE2) is closer to the pad region (PA) than the first sensor electrode (SE1), each of the first to third sensor electrodes (SE1, SE2, SE3) extending in a second direction crossing the first direction; a fourth sensor electrode (SE4) in the display area (DA), the fourth sensor electrode (SE4) extending along the first direction such that the fourth sensor electrode (SE4) crosses the first to third sensor electrodes (SE1, SE2, SE3); first to fourth pads (PD1, PD2, PD3, PD4) in the pad area (PA); a first trace line (TL1) electrically connecting the first sensor electrode (SE1) and the first pad (PD1), the first trace line (TL1) overlapping the second sensor electrode (SE2); a second trace line (TL2) electrically connecting the second sensor electrode (SE2) and the second pad (PD2), the second trace line (TL2) including a first meander portion (MP1) including: at least a part extending in the first direction and at least a part extending in the second direction in the display area (DA); a third trace line (TL3) electrically connecting the third sensor electrode (SE3) and the third pad (PD3); and a fourth trace line (TL4) electrically connecting the fourth sensor electrode (SE4) and the fourth pad (PD4).The display device (100) of claim 1, wherein the first trace line (TL1) is electrically connected to the first pad (PD1) and extends over the display area (DA) in the first direction, and the second trace line (TL2) is electrically connected to the second pad (PD2) and extends over the display area (DA) in the first direction.The display device (100) according to claim 1, wherein the first trace line (TL1) extends over the display area (DA) in the first direction without extending in the second direction in the display area (DA), or has a meander portion shorter than the first meander portion (MP1), wherein the meander portion of the first trace line (TL1) includes: at least a part extending in the first direction and at least a part extending in the second direction in the display area (DA).The display device (100) according to any one of claims 1 to 3, wherein the first meandering portion (MP1) overlaps the second sensor electrode (SE2).The display device (100) according to any one of claims 1 to 4, wherein the third sensor electrode (SE3) is closer to the pad region (PA) than the second sensor electrode (SE2) such that the first trace line (TL1) and the second trace line (TL2) respectively overlap the third sensor electrode (SE3), and the third trace line (TL3) includes a second meander portion (MP2) including: at least a part extending in the first direction and at least a part extending in the second direction across the third sensor electrode (SE3) in the display region (DA).The display device (100) according to any one of claims 1 to 5, wherein the first sensor electrode (SE1) includes: two first sub-sensor electrodes (SUB1a, SUB1b) arranged in the second direction, and a first bridge (BRG1) electrically connecting the two first sub-sensor electrodes (SUB1a, SUB1b), wherein the second sensor electrode (SE2) includes: two second sub-sensor electrodes (SUB2a, SUB2b) arranged in the second direction, and a second bridge (BRG2) electrically connecting the two second sub-sensor electrodes (SUB2a, SUB2b), and wherein a first portion of the fourth sensor electrode (SE4) between the two first sub-sensor electrodes (SUB1a, SUB1b) and overlaps the first bridge (BRG1), and a second portion of the fourth sensor electrode (SE4) is between the two second subsensor electrodes (SUB2a, SUB2b) and overlaps the second bridge (BRG2).The display device (100) according to claim 6, wherein the first meandering portion (MP1) overlaps the fourth sensor electrode (SE4).The display device (100) according to claim 6 or 7, wherein the two first sub-sensor electrodes (SUB1a, SUB1b), the two second sub-sensor electrodes (SUB2a, SUB2b), and the fourth sensor electrode (SE4) are located in a sensor metal layer (SML), wherein the first bridge (BRG1), the second bridge (BRG2), the first trace line (TL1), and the second trace line (TL2) are located in a bridge metal layer (BML) different from the sensor metal layer (SML), and wherein the fourth trace line (TL4) is located in the sensor metal layer (SML) or the bridge metal layer (BML).The display device (100) according to any one of claims 6 to 8, wherein the two first sub-sensor electrodes (SUB1a, SUB1b) included in the first sensor electrode (SE1), the two second sub-sensor electrodes (SUB2a, SUB2b) included in the second sensor electrode (SE2), and the fourth sensor electrode (SE4) each include a mesh-shaped sensor metal (SM), wherein the first bridge (BRG1) and the second bridge (BRG2) include a bridge metal (BM) located in a different layer from the mesh-shaped sensor metal (SM), and wherein the first bridge (BRG1) and the second bridge (BRG2) are bent or curved along the mesh-shaped sensor metal (SM) of the fourth sensor electrode (SE4).The display device (100) according to any one of claims 1 to 9, wherein the second trace line (TL2) overlaps the first sensor electrode (SE1).The display device (100) according to any one of claims 1 to 10, further comprising: a fifth sensor electrode (SE5) disposed in the display region (DA) such that the fifth sensor electrode (SE5) is closer to the pad region (PA) than the first sensor electrode (SE1), the second sensor electrode (SE2), and the third sensor electrode (SE3), the fifth sensor electrode (SE5) extending in the second direction; a fifth pad (PD5) in the pad region (PA); and a fifth trace line (TL5) electrically connecting the fifth sensor electrode (SE5) and the fifth pad (PD5), wherein the first trace line (TL1), the second trace line (TL2) and the third trace line (TL3) respectively overlap the fifth sensor electrode (SE5).The display device (100) according to claim 11, wherein a number of first trace lines (TL1) connected to the first sensor electrode (SE1) is larger than a number of fifth trace lines (TL5) connected to the fifth sensor electrode (SE5).A display panel (110) comprising: a substrate (111) comprising: a display region (DA) including a plurality of sub-pixels (SP) and a non-display region (NDA) including a pad region (PA) spaced apart from the display region (DA) in a first direction; a light emitting element (ED) in the display region (DA) of the substrate (111); an encapsulation layer (200) on the light emitting element (ED); first to third sensor electrodes (SE1, SE2, SE3) on the encapsulation layer (200) in the display region (DA), each of the first to third sensor electrodes (SE1, SE2, SE3) extending in a second direction crossing the first direction; a fourth sensor electrode (SE4) on the encapsulation layer (200) in the display area (DA), the fourth sensor electrode (SE4) crossing the first to third sensor electrodes (SE1, SE2, SE3); first to fourth pads (PD1, PD2, PD3, PD4) in the pad area (PA); a first trace line (TL1) extending over the display area (DA) in the first direction, the first trace line (TL1) electrically connecting the first sensor electrode (SE1) and the first pad (PD1); a second trace line (TL2) extending over the display area (DA) in the first direction, the second trace line (TL2) electrically connecting the second sensor electrode (SE2) and the second pad (PD2); a third trace line (TL3) extending over the display area (DA) in the first direction, the third trace line (TL3) electrically connecting the third sensor electrode (SE3) and the third pad (PD3); and a fourth trace line (TL4) electrically connecting the fourth sensor electrode (SE4) and the fourth pad (PD4), wherein the encapsulation layer (200) comprises: a first inclined surface (SLP 1) at a first part of the non-display area (NDA) adjoining a first side of the display area (DA) extending in the second direction, a second inclined surface (SLP 2) at a second part of the non-display area (NDA) adjoining a second side of the display area (DA) extending in the first direction, a third inclined surface (SLP 3) at a third part of the non-display area (NDA) adjoining a third side of the display area (DA), which extends in the second direction and is spaced apart from the first side of the display area (DA) in the first direction, and a fourth inclined surface (SLP4) at a fourth part of the non-display area (NDA) which adjoins a fourth side of the display area (DA) which extends in the first direction and is spaced apart from the second side of the display area (DA) in the second direction, wherein no metal is disposed on the second inclined surface (SLP2) and the fourth inclined surface (SLP4), and wherein the first trace line (TL1), the second trace line (TL2), the third tracking line (TL 3) and the fourth tracking line (TL 4) overlap the first inclined surface (SLP 1) without overlapping the second inclined surface (SLP 2), the third inclined surface (SLP 3), and the fourth inclined surface (SLP 4).The display panel (110) according to claim 13, wherein the second sensor electrode (SE2) is closer to the pad region (PA) than the first sensor electrode (SE1), and the first trace line (TL1) overlaps the second sensor electrode (SE2), and the second trace line (TL2) includes a first meander portion (MP1) including at least a part extending in the first direction and at least a part extending in the second direction in the display region (DA).A display panel (110) comprising: a substrate (111) comprising: a display area (DA) including a plurality of sub-pixels (SP) and a non-display area (NDA) including a pad area (PA) spaced apart from the display area (DA) in a first direction; a first sensor electrode (SE1) in the display area (DA), the first sensor electrode (SE1) extending in a second direction crossing the first direction; a second sensor electrode (SE2) in the display area (DA), the second sensor electrode (SE2) extending in the second direction and being closer to the pad area (PA) than the first sensor electrode (SE1); a first trace line (TL 1) extending from the pad region (PA) to the first sensor electrode (SE 1) such that the first trace line (TL 1) overlaps the first sensor electrode (SE 1) and the second sensor electrode (SE 2); and a second trace line (TL 2) extending from the pad region (PA) to the second sensor electrode (SE 2) such that the second trace line (TL 2) overlaps the second sensor electrode (SE 2) without overlapping the first sensor electrode (SE 1), wherein a total length of the second trace line (TL 2) is substantially the same as a total length of the first trace line (TL 1).The display panel (110) according to claim 15, wherein the second trace line (TL2) includes a meander portion (MP1) including: at least a part extending in the first direction and at least a part extending in the second direction in the display area (DA).The display panel (110) according to claim 16, wherein the meander portion (MP1) overlaps the second sensor electrode (SE2).The display panel (110) according to claim 16 or 17, wherein the first trace line (TL1) extends in the first direction in the display area (DA) without extending in the second direction in the display area (DA).The display panel (110) according to any one of claims 15 to 18, further comprising: a third sensor electrode (SE3) in the display area (DA), the third sensor electrode (SE3) extending along the first direction such that the third sensor electrode (SE3) crosses the first sensor electrode (SE1) and the second sensor electrode (SE2); a third trace line (TL3) connected to the third sensor electrode (SE3); a first pad (PD1) in the pad area (PA), the first pad (PD1) being connected to the first trace line (TL1) electrically connecting the first pad (PD1) to the first sensor electrode (SE1); a second pad (PD2) in the pad area (PA), the second pad (PD2) being connected to the second trace line (TL2) electrically connecting the second pad (PD2) to the second sensor electrode (SE2); and a third pad (PD3) in the pad area (PA), the third pad (PD3) being connected to the third trace line (TL3) electrically connecting the third pad (PD3) to the third sensor electrode (SE3).The display panel (110) according to any one of claims 15 to 19, further comprising: an encapsulation layer (200) extending from the display area (DA) to the non-display area (NDA), wherein the encapsulation layer (200) includes a plurality of inclined surfaces (SLP1, SLP2, SLP3, SLP4) in the non-display area (NDA), wherein the first trace line (TL1) and the second trace line (TL2) overlap an inclined surface of the plurality of inclined surfaces (SLP1, SLP2, SLP3, SLP4) located between the display area (DA) and the pad area (PA) without overlapping the remaining inclined surfaces of the plurality of inclined surfaces (SLP1, SLP2, SLP3, SLP4).

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