Display device and display panel

Abstract

A display device and a display panel according to an embodiment of the present disclosure may include: a substrate including a display area and a non-display area including a pad area positioned in a first direction with respect to the display area; a first sensor electrode disposed in the display area and including a plurality of first sub-sensor electrodes arranged in a second direction crossing the first direction and at least one first bridge electrically connecting the plurality of first sub-sensor electrodes; a first pad disposed in the pad region; and a first touch wiring electrically connecting at least one of the plurality of first sub-sensor electrodes and the first pad. A plurality of first sub-sensor electrodes may be disposed in the first metal layer. The first bridge may be disposed in a second metal layer different from the first metal layer. The first touch wiring may include a metal extending in the first direction in the display area, electrically connected to the first pad, and disposed in a third metal layer different from the first metal layer and the second metal layer.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Korean Patent Application No. 10-2023-0083698, filed on Jun. 28, 2023, which is hereby incorporated by reference for all purposes as if fully set forth herein. Technical Field

[0003] Embodiments of the present disclosure relate to a display device and a display panel. Background Art

[0004] With the development of the information society, the demand for display devices for displaying images in various forms has increased. Various display devices are being used, such as liquid crystal display devices and organic light emitting display devices. In addition, touch display devices provide an input scheme that allows users to input information or commands more easily, intuitively and conveniently without buttons, keyboards, mice or other typical input devices.

[0005] For various reasons such as aesthetics and product applications, a lot of research and development work is being done recently to reduce the size of the bezel (non-display area). However, since various components (e.g., various lines or patterns) are inevitably placed in the bezel, there is a significant limitation in reducing the size of the bezel. Summary of the invention

[0006] Embodiments of the present disclosure may provide a display device and a display panel having a touch sensor structure that allows a narrow bezel.

[0007] Embodiments of the present disclosure may provide a display device and a display panel including a touch sensor that may provide high touch sensitivity while having a narrow bezel.

[0008] Embodiments of the present disclosure may provide a display device and a display panel including a touch sensor that may reduce noise between sensor electrodes.

[0009] Embodiments of the present disclosure may provide a display device and a display panel having a touch sensor stack structure suitable for reducing a bezel size and increasing touch sensitivity.

[0010] A display device according to an embodiment of the present disclosure may include: a substrate including a display area in which a plurality of sub-pixels are provided and a non-display area including a pad area positioned in a first direction relative to the display area; a first sensor electrode, which is provided in the display area and includes a plurality of first sub-sensor electrodes arranged along a second direction intersecting the first direction and at least one first bridge electrically connecting the plurality of first sub-sensor electrodes; a first pad, which is provided in the pad area; and a first touch wiring, which electrically connects at least one of the plurality of first sub-sensor electrodes and the first pad.

[0011] The plurality of first sub sensor electrodes may be disposed in a first metal layer. The first bridge may be disposed in a second metal layer different from the first metal layer.

[0012] The first touch wiring may include a metal extending in the first direction in the display area, electrically connected to the first pad, and disposed in a third metal layer different from the first metal layer and the second metal layer.

[0013] The first touch wiring may be a single-line type or a multi-line type.

[0014] For example, when the first touch wiring is a single line type, the first touch wiring may include a metal provided in the third metal layer.

[0015] For example, when the first touch wiring is a multi-line type, the first touch wiring may include a first sub-line disposed in the third metal layer and a first upper sub-line disposed in the first metal layer. Here, the first sub-line and the first upper sub-line may be electrically connected to each other.

[0016] The display device according to an embodiment of the present disclosure may further include: a second sensor electrode, which is arranged in the display area and includes a plurality of second sub-sensor electrodes arranged along a second direction and at least one second bridge electrically connecting the plurality of second sub-sensor electrodes; a second pad, which is arranged in the pad area; and a second touch wiring, which electrically connects at least one of the plurality of second sub-sensor electrodes and the second pad.

[0017] The second sensor electrode may be disposed closer to the pad area than the first sensor electrode.

[0018] The plurality of second sub sensor electrodes may be disposed in the first metal layer. The second bridge may be disposed in the second metal layer.

[0019] The second touch wiring may include a metal disposed across the display area in the first direction, electrically connected to the second pad, and disposed in the third metal layer.

[0020] The first touch wiring may overlap at least one of the plurality of second sub sensor electrodes.

[0021] The display device according to an embodiment of the present disclosure may further include: a third sensor electrode, which is arranged in the first direction to pass between two adjacent first sub-sensor electrodes among the plurality of first sub-sensor electrodes; a third pad, which is arranged in the pad area; and a third touch wiring, which electrically connects the third sensor electrode and the third pad.

[0022] The third sensor electrode may overlap the first bridge.

[0023] The third touch wiring may include a metal disposed in a different metal layer from the first touch wiring. For example, the third touch wiring may include a metal disposed in a second metal layer.

[0024] The third touch wiring may be a single-line type or a multi-line type.

[0025] For example, when the third touch wiring is a single line type, the third touch wiring may include a metal provided in the second metal layer.

[0026] For example, when the third touch wiring is a multi-line type, the third touch wiring may include a third lower sub-line disposed in the second metal layer and a third upper sub-line disposed in the first metal layer. Here, the third lower sub-line and the third upper sub-line may be electrically connected to each other.

[0027] The third sensor electrode may overlap the first touch wiring.

[0028] A display panel according to an embodiment of the present disclosure may include: a substrate including a display area provided with a plurality of sub-pixels and a non-display area including a pad area positioned in a first direction relative to the display area; a first touch interlayer insulating film on the substrate; a second touch interlayer insulating film on the first touch interlayer insulating film; a touch protection film on the second touch interlayer insulating film; a first metal layer between the second touch interlayer insulating film and the touch protection film; a second metal layer between the first touch interlayer insulating film and the second touch interlayer insulating film; a third metal layer on the substrate and the first touch interlayer insulating film; a first sensor electrode including a plurality of first sub-sensor electrodes arranged in the first metal layer and a first bridge arranged in the second metal layer to electrically connect the plurality of first sub-sensor electrodes; and a first touch wiring electrically connected to the first sensor electrode, including a metal arranged in the third metal layer, and extending along the first direction in the display area.

[0029] The display panel according to an embodiment of the present disclosure may further include: a second sensor electrode, the second sensor electrode including a plurality of second sub-sensor electrodes arranged in the first metal layer and a second bridge arranged in the second metal layer to electrically connect the plurality of second sub-sensor electrodes; and a second touch wiring electrically connected to the second sensor electrode, including a metal arranged in a third metal layer, and extending along the first direction in the display area.

[0030] According to the internal touch routing structure, the first touch wiring may overlap the plurality of second sub sensor electrodes.

[0031] The display panel according to an embodiment of the present disclosure may further include: a third sensor electrode, which is arranged in the first metal layer; a third touch wiring, which is electrically connected to the third sensor electrode and includes a metal arranged in a second metal layer different from the third metal layer; a fourth sensor electrode, which includes a plurality of fourth sub-sensor electrodes arranged in the first metal layer and a second bridge arranged in the second metal layer to electrically connect the plurality of fourth sub-sensor electrodes; and a fourth touch wiring, which is electrically connected to the fourth sensor electrode, includes a metal arranged in the third metal layer, and extends along the first direction in the display area.

[0032] The first sensor electrode, the second sensor electrode, and the fourth sensor electrode may cross the third sensor electrode.

[0033] For example, the first sensor electrode, the second sensor electrode, and the fourth sensor electrode may be receiving sensor electrodes, and the third sensor electrode may be a transmitting sensor electrode.

[0034] As another example, the first sensor electrode, the second sensor electrode, and the fourth sensor electrode may be transmitting sensor electrodes, and the third sensor electrode may be a receiving sensor electrode.

[0035] The display panel according to an embodiment of the present disclosure may further include: a first contact hole connecting the first sensor electrode and the first touch wiring; and a second contact hole connecting the fourth sensor electrode and the fourth touch wiring.

[0036] For example, both the first contact hole and the second contact hole may be positioned on one side of the third sensor electrode, and the first touch interlayer insulating film may include an inorganic film.

[0037] In this case, the third touch wiring and the fourth touch wiring may not overlap.

[0038] As another example, the first contact hole may be positioned on one side of the third sensor electrode, the second contact hole may be positioned on the other side of the third sensor electrode, and the first touch interlayer insulating film may include an organic film.

[0039] In this case, the third touch wiring and the fourth touch wiring may overlap.

[0040] According to an embodiment of the present disclosure, a display device and a display panel having a touch sensor structure allowing a narrow frame may be provided.

[0041] According to an embodiment of the present disclosure, a display device and a display panel including a touch sensor that can provide high touch sensitivity while having a narrow bezel can be provided.

[0042] According to an embodiment of the present disclosure, a display device and a display panel including a touch sensor that can reduce noise between sensor electrodes can be provided.

[0043] According to an embodiment of the present disclosure, a display device and a display panel having a touch sensor stack structure suitable for reducing a frame size and increasing touch sensitivity may be provided.

[0044] According to an embodiment of the present disclosure, as the frame size is significantly reduced, the use of materials corresponding to the reduced frame size can be reduced. This can help reduce the weight of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and other objects, features and advantages of the present disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0046] Figure 1 is a view showing a system configuration of a display device according to an embodiment of the present disclosure;

[0047] Figure 2A A display panel according to an embodiment of the present disclosure is shown;

[0048] Figure 2B A substrate of a display panel according to an embodiment of the present disclosure is shown;

[0049] Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 is a plan view showing a touch sensor included in a display panel according to an embodiment of the present disclosure;

[0050] Figure 8A partial area of ​​a touch sensor included in a display panel according to an embodiment of the present disclosure is exemplarily shown in detail;

[0051] Fig. 9 shows a unit sensor in a touch sensor included in a display panel according to an embodiment of the present disclosure;

[0052] Fig.10 and Fig.11 shows a stacking structure of a touch sensor included in a display panel according to an embodiment of the present disclosure;

[0053] Fig.12 is a plan view showing a display panel according to an embodiment of the present disclosure;

[0054] Fig.13 , Fig.14 and Fig.15 is a cross-sectional view showing the gist of a display panel according to an embodiment of the present disclosure;

[0055] Fig.16 is a plan view showing a display panel according to an embodiment of the present disclosure;

[0056] Fig.17 , Fig.18 and Fig.19 is a cross-sectional view showing the gist of a display panel according to an embodiment of the present disclosure;

[0057] Fig. 20 A touch driving circuit according to an embodiment of the present disclosure is shown; and

[0058] Fig.21 A substrate and an encapsulation layer of a display panel according to an embodiment of the present disclosure are shown. DETAILED DESCRIPTION

[0059] Hereinafter, embodiments of the present disclosure are described in detail with reference to the accompanying drawings. Throughout the specification and the accompanying drawings, the same or substantially the same reference numerals are used to refer to the same or substantially the same elements. When it is determined that the subject matter of the present disclosure is unclear, the details of known technologies or functions can be skipped. As used herein, when a component "includes" another component, "has" another component, or "is composed of another component", the component can add other components unless the component "only" includes another component, has another component, or is composed of another component. As used herein, the singular forms "a", "an", and "the" also include plural forms, unless the context clearly indicates otherwise.

[0060] Indications such as "first," "second," "A," "B," "(a)," and "(b)" may be used to describe components of the present disclosure. These indications are provided merely to distinguish one component from another, and the nature, order, or number of the components is not limited by the indications according to the order or sequence.

[0061] When describing the positional relationship between components, when two or more components are described as being “connected,” “coupled,” or “linked,” the two or more components may be directly “connected,” “coupled,” or “linked,” or another component may intervene. Here, another component may be included in one or more of the two or more components that are “connected,” “coupled,” or “linked” to each other.

[0062] When terms such as "after," "beside," "after," and "before" are used to describe a time-flow relationship associated with components, methods of operation, and methods of manufacture, non-continuous relationships may be included unless the terms "immediately" or "directly" are used.

[0063] At the same time, if a numerical value or its corresponding information (e.g., level, etc.) is mentioned for a component, it can be interpreted that the numerical value or its corresponding information includes an error margin that may be caused by various factors (e.g., processing factors, internal or external shocks, noise, etc.), even if not otherwise explicitly stated.

[0064] Hereinafter, various embodiments of the present disclosure are described in detail with reference to the accompanying drawings.

[0065] Figure 1 is a view showing a system configuration of a display device 100 according to an embodiment of the present disclosure.

[0066] refer to Figure 1 The display device 100 according to an embodiment of the present disclosure may include a display panel 110 and a display driving circuit as components for displaying an image. The display driving circuit is a circuit for driving the display panel 110, and may include a data driving circuit 120, a gate driving circuit 130, and a display controller 140.

[0067] 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.

[0068] The substrate 111 may include a display area DA where a plurality of sub-pixels SP are disposed and a non-display area NDA positioned in a first direction with respect to the display area DA.

[0069] The non-display area NDA may include a pad area for connection with the data driving circuit 120. For example, the pad area may be located in a first direction with respect to the display area DA.

[0070] The non-display area NDA may have only as large a size as, for example, a pad area that it may include. In other words, the non-display area NDA of the display panel 110 according to an embodiment of the present disclosure may have a very small size. For example, although the display panel 110 has the non-display area NDA, the boundary area between the display area and the non-display area NDA may be curved so that the non-display area NDA may be positioned below the display area DA. In this case, the non-display area NDA presented to the user when the user views the display area 100 from the front may be unchanged or slightly changed.

[0071] The display device 100 according to an embodiment of the present disclosure may be a liquid crystal display device or a self-emitting display device in which the display panel 110 emits light itself. When the display device 100 according to an embodiment of the present disclosure is a self-emitting display device, each of the plurality of subpixels SP may include a light emitting element.

[0072] For example, the display device 100 according to an embodiment of the present disclosure may be an organic light emitting diode display, wherein the light emitting element is implemented as an organic light emitting diode (OLED). As another example, the display device 100 according to an embodiment of the present disclosure may be an inorganic light emitting display device, wherein the light emitting element is implemented as a light emitting diode based on an inorganic material. As another example, the display device 100 according to an embodiment of the present disclosure may be a quantum dot display device, wherein the light emitting element is implemented as a quantum dot of a self-emitting semiconductor crystal.

[0073] The structure of each of the plurality of subpixels SP may vary according to the type of display device 100. For example, when display device 100 is a self-emitting display device in which the subpixels SP emit light by themselves, each subpixel SP may include a self-emitting light emitting element, one or more transistors, and one or more capacitors.

[0074] For example, the various types of signal lines may include a plurality of data lines DL transmitting data signals (also referred to as data voltages or image signals) and a plurality of gate lines GL transmitting gate signals (also referred to as scan signals).

[0075] A plurality of data lines DL and a plurality of gate lines GL may cross each other. Each of the plurality of data lines DL may be arranged to extend along a first direction. Each of the plurality of gate lines GL may be arranged to extend along a second direction. Here, the first direction may be a column direction, and the second direction may be a row direction. The first direction may be a row direction, and the second direction may be a column direction. For ease of description, an example is described below in which each of the plurality of data lines DL is arranged along a column direction, and each of the plurality of gate lines GL is arranged along a row direction, and the first direction is a column direction, and the second direction is a row direction.

[0076] 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.

[0077] 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 them to a plurality of data lines DL.

[0078] For example, the data driving circuit 120 may be connected to the display panel 110 via a tape automated bonding (TAB) method, or connected to a bonding pad of the display panel 110 via a chip on glass (COG) or chip on panel (COP) method, or may be implemented and connected to the display panel 110 via a chip on film (COF) method.

[0079] The data driving circuit 120 may be connected outside the display area DA of the display panel 110 , but alternatively, the data driving circuit 120 may be provided in the display area DA of the display panel 110 .

[0080] The gate driving 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.

[0081] The gate driving circuit 130 may receive a first gate voltage corresponding to an on-level voltage and a second gate voltage corresponding to an off-level voltage, and various gate driving control signals GCS, generate gate signals, and supply the generated gate signals to a plurality of gate lines GL.

[0082] In the display device 100 according to an embodiment of the present disclosure, the gate driving circuit 130 may be disposed to overlap with 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 with the display area DA, the gate driving circuit 130 may be disposed not to overlap with the sub-pixels SP, or may be disposed to overlap with all or some of the sub-pixels SP.

[0083] In the display device 100 according to an embodiment of the present disclosure, the gate driving circuit 130 may be embedded in the display panel 110 in a gate-in-panel (GIP) type. When the gate driving circuit 130 is a gate-in-panel type, the gate driving circuit 130 may be formed on a substrate 111 of the display panel 110 during a manufacturing process of the display panel 110.

[0084] The display controller 140 is a device for controlling the data driving circuit 120 and the gate driving circuit 130 , and may control driving timing for a plurality of data lines DL and driving timing for a plurality of gate lines GL.

[0085] The display controller 140 may supply a data driving control signal DCS to the data driving circuit 120 to control data driving, and may supply a gate driving control signal GCS to the gate driving circuit 130 to control gate driving.

[0086] The display controller 140 may receive input image data from the host system 180 and supply image data DATA to the data driving circuit 120 based on the input image data.

[0087] The display controller 140 may be implemented as a component independent of the data driving circuit 120 , or the display controller 140 and the data driving circuit 120 may be integrated into an integrated circuit (IC).

[0088] The display controller 140 may be a timing controller used in typical display technologies, a control device that may perform other control functions as well as the functions of the timing controller, or a control device other than the timing controller, or may be a circuit in the control device. The display controller 140 may be implemented as various circuits or electronic components, such as an integrated circuit (IC), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a processor.

[0089] The display controller 140 may be mounted on a printed circuit board or a flexible printed circuit, and may be electrically connected to the data driving circuit 120 and the gate driving circuit 130 through the printed circuit board or the flexible printed circuit.

[0090] The display controller 140 may transmit / receive signals to / from the data driving 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-to-point interface (EPI), and a serial peripheral interface (SPI).

[0091] Meanwhile, the display device 100 according to an embodiment of the present disclosure may include a touch sensor and a touch sensing circuit 150 to further provide a touch sensing function as well as an image display function.

[0092] The touch sensing circuit 150 may detect the presence of a touch (finger touch or pen touch) of a touch object such as a finger or the pen 10 , or detect a touch position by sensing a touch sensor.

[0093] For example, the touch sensing circuit 150 may include a touch driving circuit 160 that drives and senses a touch sensor and generates and outputs touch sensing data, and a touch controller 170 that may detect occurrence of a touch or a touched position using the touch sensing data.

[0094] 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 screen panel (TSP).

[0095] The touch sensor may be an external type in which it exists outside the display panel 110 , or an internal type in which it exists inside the display panel 110 .

[0096] When the touch sensor is an outside type, the touch sensor and the display panel 110 may be manufactured separately or may be combined during an assembly process. The outside type touch sensor may include a substrate and a plurality of sensor electrodes on the substrate.

[0097] When the touch sensor is an internal type, a plurality of sensor electrodes and various patterns for display driving may be formed in the display panel 110 during a manufacturing process of the display panel 110 .

[0098] The touch driving circuit 160 may supply a touch driving signal to at least one of the plurality of sensor electrodes, and may sense at least one of the plurality of sensor electrodes to generate touch sensing data.

[0099] The touch sensing circuit 150 may perform touch sensing in a self-capacitance sensing scheme or a mutual capacitance sensing scheme.

[0100] When the touch sensing circuit 150 performs touch sensing in a self-capacitance sensing scheme, the touch sensing circuit 150 can perform touch sensing based on the capacitance between each sensor electrode and a touch object (e.g., a finger or pen 1). According to the self-capacitance sensing scheme, each of the plurality of sensor electrodes can be used as a transmitting sensor electrode and a receiving sensor electrode. The touch drive circuit 160 can drive all or some of the plurality of sensor electrodes and sense all or some of the plurality of sensor electrodes.

[0101] When the touch sensing circuit 150 performs touch sensing in a mutual capacitance sensing scheme, the touch sensing circuit 150 may perform touch sensing based on the capacitance between the plurality of sensor electrodes. According to the mutual capacitance sensing scheme, the plurality of sensor electrodes may be divided into a plurality of transmitting sensor electrodes and a plurality of receiving sensor electrodes. The touch driving circuit 160 may drive the plurality of transmitting sensor electrodes and the plurality of receiving sensor electrodes.

[0102] Hereinafter, the transmitting sensor electrode is also referred to as a driving sensor electrode, and the receiving sensor electrode is also referred to as a detecting sensor electrode.

[0103] The touch driving circuit 160 and the touch controller 170 included in the touch sensing circuit 150 may be implemented as separate devices or a single device.

[0104] The touch driving circuit 160 and the data driving circuit 120 may be implemented as separate devices or a single device. For example, the touch driving circuit 160 and the data driving circuit 120 may be configured as a single integrated circuit.

[0105] The display device 100 may further include a power supply circuit for supplying various types of power to the display driver integrated circuit and / or the touch sensing circuit 150 .

[0106] The display device 100 according to an embodiment of the present disclosure may be a mobile terminal such as a smartphone or a tablet, or a monitor or television (TV) of various sizes, but is not limited thereto and may be a display of various types and sizes capable of displaying information or images.

[0107] Figure 2A A display panel 110 according to an embodiment of the present disclosure is shown.

[0108] Reference Figure 2A , the display panel 110 may include a substrate 111 on which a plurality of sub-pixels SP are disposed and an encapsulation layer 200 on the substrate 111. Here, the encapsulation layer 200 may also be referred to as an encapsulation substrate or an encapsulation portion.

[0109] Reference Figure 2A, when the display device 100 according to an embodiment of the present disclosure is a self-luminous display device, each of the plurality of sub-pixels SP may include a light emitting element ED and a sub-pixel circuit unit SPC for driving the light emitting element ED.

[0110] Reference Figure 2A , the sub-pixel circuit unit SPC may include a plurality of pixel driving transistors for driving the light emitting element ED and at least one capacitor.

[0111] The plurality of pixel driving transistors may include a first transistor T1 which is a driving transistor for driving the light emitting element ED and a second transistor T2 for transmitting a data signal VDATA to a second node N2 of the first transistor T1 .

[0112] The at least one capacitor may include a storage capacitor Cst for maintaining a constant voltage during a frame.

[0113] To drive the subpixel SP, a data signal VDATA as an image signal and a scan signal SC as a gate signal may be applied to the subpixel SP. In addition, to drive the subpixel SP, a common pixel driving voltage including a first driving voltage VDD and a second driving voltage VSS may be applied to the subpixel SP.

[0114] 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 sub-pixel SP, and the common electrode CE may be an electrode commonly disposed in all sub-pixels 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).

[0115] 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 provided for each sub-pixel SP, and the first common layer and the second common layer may be provided together in a plurality of sub-pixels SP. Here, the anode may be a pixel electrode PE or a common electrode CE, and the cathode may be a common electrode CE or a pixel electrode PE.

[0116] For example, the common electrode CE may be electrically connected to a second driving voltage line VSSL. A second driving voltage VSS as a type of common pixel driving voltage may be applied to the common electrode CE through the second driving voltage line VSSL. The pixel electrode PE may be electrically connected to a first node N1 of a first transistor T1 of each subpixel SP.

[0117] 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 ease of description, it is assumed below that the pixel electrode PE is an anode and the common electrode CE is a cathode.

[0118] Each light emitting element ED may include a portion where 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 emitting region of each light emitting element ED may include a region where the pixel electrode PE, the element intermediate layer EL, and the common electrode CE overlap.

[0119] According to an embodiment, the light emitting element ED may be an inorganic light emitting diode (LED), a quantum dot light emitting element, or the like.

[0120] The first transistor T1 may be a driving transistor for supplying a driving current to the light emitting element ED. The first transistor T1 may be connected between the first driving voltage line VDDL and the light emitting element ED.

[0121] The first transistor T1 may include a first node N1 electrically connected to the light emitting element ED, a second node N2 to which the data signal VDATA may be applied, and a third node N3 to which the driving voltage VDD is applied from the first driving voltage line VDDL.

[0122] In the first transistor T1, the second node N2 may be a gate node, the first node N1 may be a source node or a drain node, and the third node N3 may be a drain node or a source node. Hereinafter, for ease of description, in the first transistor T1, the second node N2 may be a gate node, the first node N1 may be a source node, and the third node N3 may be a drain node.

[0123] The second transistor T2 may be a switching transistor for transmitting the data signal VDATA, which is an image signal, to the second node N2, which is a gate node of the first transistor T1, which is a driving transistor.

[0124] The second transistor T2 may be turned on and off to control the electrical connection between the second node N2 of the first transistor T1 and the data line DL by a scan signal SC, which is a gate signal applied through a scan line SCL, which is a type of gate line GL. A drain electrode or a source electrode of the second transistor T2 may be electrically connected to the data line DL, a source electrode or a drain electrode of the second transistor T2 may be electrically connected to the second node N2 of the first transistor T1, and a gate electrode of the second transistor T2 may be electrically connected to the scan line SCL.

[0125] The storage capacitor Cst may be electrically connected between the first node N1 and the second node N2 of the first transistor T1. The storage capacitor Cst may include a first capacitor electrode electrically connected to or corresponding to the first node N1 of the first transistor T1, and a second capacitor electrode electrically connected to or corresponding to the second node N2 of the first transistor T1.

[0126] Each of the first transistor T1 and the second transistor T2 may be an n-type transistor or a p-type transistor.

[0127] At least a portion of the sub-pixel circuit unit SPC may overlap at least a portion of the light emitting element ED in the vertical direction. Alternatively, the sub-pixel circuit unit SPC may not overlap the light emitting element ED in the vertical direction.

[0128] like Figure 2A As shown, the sub-pixel circuit unit SPC may have a 2T (transistor) 1C (capacitor) structure including two transistors T1 and T2 and one capacitor Cst. In some cases, the sub-pixel circuit unit SPC may further include one or more transistors, or may further include one or more capacitors.

[0129] According to the structure of the sub-pixel circuit unit SPC, the type and number of gate signals supplied to the sub-pixels SP and the gate lines may vary. In addition, the type and number of common pixel driving voltages supplied to the sub-pixels SP may vary according to the structure of the sub-pixel circuit unit SPC.

[0130] Since the circuit elements in each sub-pixel SP (especially the light emitting element ED implemented as an organic light emitting diode (OLED) including an organic material) are susceptible to external moisture or oxygen, an encapsulation layer 200 for preventing external moisture or oxygen from penetrating into the circuit elements (especially the light emitting element ED) may be provided on the display panel 110. The encapsulation layer 200 may be configured in various forms so that the light emitting element ED does not contact moisture or oxygen.

[0131] Reference Figure 2A The display panel 110 according to an embodiment of the present disclosure may include a plurality of sensor electrodes SE for touch sensing. For example, a plurality of sensor electrodes SE may be provided on the encapsulation layer 200 .

[0132] The display panel 110 according to an embodiment of the present disclosure may further include a plurality of signal lines (hereinafter referred to as a plurality of touch wirings) for electrically connecting the plurality of sensor electrodes SE to the touch driving circuit 160 .

[0133] The display device 100 according to an embodiment of the present disclosure may have an extremely narrow frame structure in which the non-display area NDA of the display panel 110 is very small or almost non-existent. Hereinafter, the extremely narrow frame structure of the display panel 110 of the display device 100 according to an embodiment of the present disclosure is described.

[0134] The display panel 110 according to an embodiment of the present disclosure has an internal touch routing structure as an extremely narrow frame structure. The internal touch routing structure of the display panel 110 according to an embodiment of the present disclosure may be a structure in which a touch wiring for electrical connection between the sensor electrode SE and the touch drive circuit 160 is arranged across the display area DA without passing through the non-display area NDA outside the display area DA. Hereinafter, the internal touch routing structure of the display panel 110 according to an embodiment of the present disclosure is described in more detail.

[0135] Figure 2B A substrate 111 of a display panel 110 according to an embodiment of the present disclosure is shown.

[0136] Reference Figure 2B , the substrate 111 of the display panel 110 according to an embodiment of the present disclosure may include a display area DA where an image may be displayed and a non-display area NDA where an image is not displayed.

[0137] Reference Figure 2B , the non-display area NDA may include a first non-display area NDA1 positioned along a first direction from the display area DA, a second non-display area NDA2 positioned along a second direction from the display area DA, a third non-display area NDA3 positioned along a direction opposite to the first direction from the display area DA, and a fourth non-display area NDA4 positioned along 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). In other words, the first non-display area NDA1 may be adjacent to a first side of the display area DA, the second non-display area NDA2 may be adjacent to a second side of the display area DA, the third non-display area NDA3 may be adjacent to a third side of the display area DA opposite to the first side, and the fourth non-display area NDA4 may be adjacent to a fourth side of the display area DA opposite to the second side.

[0138] Reference Figure 2B , the first non-display area NDA1 may include a pad area PA provided with a plurality of pads. The driving circuit may be electrically connected to the plurality of pads, or a circuit film or printed circuit board 210 on which the driving circuit is mounted may be electrically connected to the plurality of pads. For example, the driving circuit may include a touch driving circuit 160. The driving circuit may also include a data driving circuit 120.

[0139] Reference Figure 2B , the first non-display area NDA1 may further include a bending area BA. In this case, the substrate 111 may be a flexible substrate. In some cases, the first non-display area NDA1 may not include the bending area BA.

[0140] For example, when the display device 100 is a mobile device (small display device) such as a smart phone, a tablet computer, etc., the first non-display area NDA1 may further include the bending area BA. As another example, when the display device 100 is a medium or large display device such as a television (TV), a monitor, etc., the first non-display area NDA1 may not include the bending area BA.

[0141] Reference Figure 2B The display panel 110 may further include a ground line GND disposed in the non-display area NDA of the substrate 111 .

[0142] The ground line GND may be disposed from one point of the pad area PA to another point of the pad area PA via the second, third, and fourth non-display areas NDA2, NDA3, and NDA4. For example, the ground line GND may surround at least three sides of the display area DA.

[0143] Meanwhile, the display panel 110 according to an embodiment of the present disclosure may further include a plurality of touch wirings for electrically connecting the plurality of sensor electrodes SE provided in the display area DA and the plurality of pads provided in the pad area PA.

[0144] Reference Figure 2B , the first non-display area NDA1 of the substrate 111 may include a first touch wiring area TRA1 and a second touch wiring area TRA2.

[0145] Reference Figure 2B The first touch wiring area TRA1 may be an area where a plurality of sensor electrodes SE extending and arranged along the first direction and a plurality of touch wirings for electrically connecting a plurality of pads are disposed.

[0146] Reference Figure 2B The second touch wiring area TRA2 may be an area where a plurality of sensor electrodes SE extending and arranged along the second direction and a plurality of touch wirings for electrically connecting a plurality of pads are disposed.

[0147] Reference Figure 2B , the second non-display area NDA2 and the fourth non-display area NDA4 of the substrate 111 do not include a touch wiring area where a touch wiring is disposed. Therefore, the second non-display area NDA2 and the fourth non-display area NDA4 of the substrate 111 can be significantly reduced.

[0148] Reference Figure 2B , the third non-display area NDA3 of the substrate 111 does not include the pad area PA. In this case, the third non-display area NDA3 of the substrate 111 does not include a touch wiring area where a touch wiring is disposed.

[0149] Alternatively, not only the first non-display area NDA1 but also the third non-display area NDA3 of the substrate 111 may include the pad area PA. In this case, the third non-display area NDA3 of the substrate 111 may further include a touch wiring area.

[0150] Figure 3 is a plan view showing a touch sensor included in the display panel 110 according to an embodiment of the present disclosure.

[0151] Reference Figure 3 , the display panel 110 according to an embodiment of the present disclosure may include a touch sensor including a plurality of sensor electrodes SE disposed in the display area DA.

[0152] Reference Figure 3 The display panel 110 according to an embodiment of the present disclosure may further include a plurality of pads PD disposed in the pad area PA, and a plurality of touch wirings TL for electrically connecting the plurality of sensor electrodes SE and the plurality of pads PD. The plurality of touch wirings TL may be regarded as a component included in the touch sensor.

[0153] Reference Figure 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 touch wirings TL may include a plurality of transmission touch wirings TL_TX and a plurality of reception touch wirings TL_RX. The plurality of pads PD may include a plurality of transmission pads PD_TX and a plurality of reception pads PD_RX.

[0154] The touch drive signal output from the touch drive circuit 160 may be applied to at least one of the plurality of transmission sensor electrodes SE_TX. Here, the touch drive signal may be a signal whose voltage level is changed. For example, the touch drive signal may be a pulse signal having a predetermined frequency and amplitude, and may be a signal having various signal waveforms such as a triangular wave, a spherical wave, or a sine wave.

[0155] Reference Figure 3, the plurality of transmitting sensor electrodes SE_TX and the plurality of receiving sensor electrodes SE_RX may be arranged to cross each other. For example, each of the plurality of transmitting sensor electrodes SE_TX may be arranged to extend along a first direction. Each of the plurality of receiving sensor electrodes SE_RX may be arranged to extend along a second direction different from the first direction.

[0156] The shape of each of the plurality of transmitting sensor electrodes SE_TX and the plurality of receiving sensor electrodes SE_RX may be changed differently. For example, each of the plurality of transmitting sensor electrodes SE_TX and the plurality of receiving sensor electrodes SE_RX may have a bar shape. As another example, each of the plurality of receiving sensor electrodes SE_RX may be composed of a plurality of electrically connected sub-sensor electrodes, or each of the plurality of transmitting sensor electrodes SE_TX may be composed of a plurality of electrically connected sub-sensor electrodes. For example, each of the plurality of sub-sensor electrodes may have various shapes, such as a square, a diamond, or a comb pattern.

[0157] Reference Figure 3 When the internal touch routing structure of the display panel 110 according to an embodiment of the present disclosure is applied, a plurality of transmitting touch wirings TL_TX or a plurality of receiving touch wirings TL_RX may extend from the display area DA to the pad area PA included in the first non-display area NDA1 without passing through the second non-display area NDA2 and the fourth non-display area NDA4 positioned outside the display area DA in the second direction and the opposite direction.

[0158] For example, among the plurality of transmitting touch wirings TL_TX and the plurality of receiving touch wirings TL_RX, the plurality of receiving touch wirings TL_RX may extend from the display area DA to the pad area PA included in the first non-display area NDA1 without passing through the second non-display area NDA2 and the fourth non-display area NDA4 positioned outside in the second direction and the opposite direction. When the plurality of receiving touch wirings TL_RX intersect the display area DA, the plurality of receiving touch wirings TL_RX may be arranged to avoid the light-emitting area of ​​each of the plurality of sub-pixels SP in the display area DA. Therefore, the internal trace structure may be designed without reducing the light-emitting performance. In other words, the plurality of receiving touch wirings TL_RX may overlap with a portion of the display area DA and extend through only one non-display area (e.g., the first non-display area NDA1) on one side to reach the pad.

[0159] In this case, the plurality of reception touch wirings TL_RX may cross the plurality of reception sensor electrodes SE_RX. In other words, the plurality of reception touch wirings TL_RX may be positioned in a different metal layer from the plurality of reception sensor electrodes SE_RX and may overlap the plurality of reception sensor electrodes SE_RX.

[0160] According to the internal touch routing structure of the display panel 110 according to the above-described embodiment of the present disclosure, since wirings may be disposed at one side of the display area (eg, the first non-display area NDA1 ), the size of the non-display area NDA may be significantly reduced.

[0161] Reference Figure 3 , when the internal touch routing structure of the display panel 110 according to an embodiment of the present disclosure is applied, a plurality of touch wirings TL may be provided in the first non-display area NDA1 including the pad area PA between the first non-display area NDA1 to the fourth non-display area NDA4, but a plurality of touch wirings TL may not be provided in the second non-display area NDA2 and the fourth non-display area NDA4. For example, a first trace TL1 connecting the first sensor electrode SE1 to the first pad PD1, a second trace TL2 connecting the second sensor electrode SE2 to the second pad PD2, and a fourth trace TL4 connecting the fourth sensor electrode SE4 to the fourth pad PD4 may extend to the pad area without passing through the second non-display area NDA2 and the fourth non-display area NDA4.

[0162] Therefore, the sizes of the second non-display area NDA2 and the fourth non-display area NDA4 among the first to fourth non-display areas NDA1 to NDA4 may be reduced to the limit.

[0163] Reference Figure 3 The sensor electrode SE including a plurality of transmitting sensor electrodes SE_TX and a plurality of receiving sensor electrodes SE_RX may include a sensor metal ( Figure 8 and Fig. 9 SM). A plurality of transmission touch wirings TL_TX or a plurality of reception touch wirings TL_RX may cross a plurality of transmission sensor electrodes SE_TX or a plurality of reception sensor electrodes SE_RX. A plurality of transmission touch wirings TL_TX or a plurality of reception touch wirings TL_RX may include a bridge metal BM different from a sensor metal included in the plurality of transmission sensor electrodes SE_TX or the plurality of reception sensor electrodes SE_RX.

[0164] For example, Figure 3 As shown, among the multiple transmission touch wirings TL_TX and the multiple reception touch wirings TL_RX, the multiple reception touch wirings TL_RX may pass through the display area DA and simultaneously cross the multiple reception sensor electrodes SE_RX. In this case, the multiple transmission touch wirings TL_TX may include a bridge metal BM or a sensor metal, and the multiple reception touch wirings TL_RX may include a jumper metal JM.

[0165] As another example, among the plurality of transmission touch wirings TL_TX and the plurality of reception touch wirings TL_RX, the plurality of transmission touch wirings TL_TX may pass through the plurality of transmission sensor electrodes SE_TX while crossing the display area DA. In this case, the plurality of reception touch wirings TL_RX may include a bridge metal BM or a sensor metal, and the plurality of transmission touch wirings TL_TX may include a jumper metal JM.

[0166] Meanwhile, outside the display area DA (i.e., in the first non-display area NDA1), the touch wiring TL may be changed from the sensor metal to the bridge metal BM, or from the bridge metal BM to the sensor metal. If necessary, a third metal different from the sensor metal and the bridge metal BM may be used as some metals of the touch wiring TL.

[0167] In the following, reference is made to Figure 4 , Figure 5 , Figure 6 and Figure 7 describe Figure 3 However, in describing Figure 4 , Figure 5 , Figure 6 and Figure 7 When the touch sensor is Figure 3 The same features as those of the touch sensors will be described below, and different features will be mainly described.

[0168] Figure 4 is another plan view illustrating a touch sensor included in the display panel 110 according to an embodiment of the present disclosure.

[0169] Reference Figure 4 , the touch sensor included in the display panel 110 according to the embodiment of the present disclosure may have a design structure with comparable resistance.

[0170] Among the multiple reception sensor electrodes SE_RX, the number of reception touch wirings TL_RX connected to the one reception sensor electrode SE_RX farthest from the pad area PA may be greater than the number of reception touch wirings TL_RX connected to the one reception sensor electrode SE_RX closest to the pad area PA among the multiple reception sensor electrodes SE_RX to reduce resistance.

[0171] For example, Figure 4As shown, two receiving touch wirings TL_RXa and TL_RXb can be connected to each of the two relative ends of a receiving sensor electrode SE_RX farthest from the pad area PA among a plurality of receiving sensor electrodes SE_RX, and one receiving touch wiring TL_RX can be connected to each of the two relative ends of a receiving sensor electrode SE_RX closest to the pad area PA among a plurality of receiving sensor electrodes SE_RX.

[0172] Reference Figure 4 , the first trace TL1 connected to one end of the first sensor electrode SE1 which is the farthest one receiving sensor electrode SE_RX may include two receiving traces TL_RXa and TL_RXb overlapping with the display area DA and extending along the first direction. Similarly, the first trace TL1 connected to the other end of the first sensor electrode SE1 may include two receiving traces TL_RXa and TL_RXb overlapping with the display area DA and extending along the first direction. The two receiving traces TL_RXa and TL_RXb included in the first trace TL1 connected to one end of the first sensor electrode SE1 may be physically connected in the non-display area NDA. The two receiving traces TL_RXa and TL_RXb included in the first trace TL1 connected to the other end of the first sensor electrode SE1 may be physically connected in the non-display area NDA.

[0173] Therefore, the two receiving traces TL_RXa and TL_RXb can be physically connected (ie, merged into one) in the non-display area NDA to connect to one first pad PD1. Therefore, the number of pads in the pad area PA can be reduced, and the number of pads (number of channels) of the touch driving circuit 160 can be reduced.

[0174] For example, when the plurality of reception sensor electrodes SE_RX are divided into n groups, the number of reception touch wirings TL_RX in the n group connected to the reception sensor electrode SE_RX included in the first group closest to the pad area PA may be 1, the number of reception touch wirings TL_RX in the n group connected to the reception sensor electrode SE_RX included in the second group closest to the pad area PA may be 2, the number of reception touch wirings TL_RX in the n group connected to the reception sensor electrode SE_RX included in the third group closest to the pad area PA may be 3, and the number of reception touch wirings TL_RX in the n group connected to the reception sensor electrode SE_RX included in the nth group closest to the pad area PA may be n. In other words, the reception sensor electrode SE_RX positioned farther from the pad area PA may have more reception touch wirings TL_RX connected thereto, so that the resistance may be reduced (for example, the resistance from the pad to each corresponding reception sensor electrode may be formed to be the same or at least substantially the same).

[0175] According to the design structure of the touch sensor included in the display panel 110 according to the embodiment of the present disclosure, even if there is a length deviation between the plurality of receiving touch wirings TL_RX, the resistance deviation of the signal transmission path between the plurality of receiving sensor electrodes SE_RX and the plurality of receiving pads PD_RX can be reduced. Therefore, the touch sensitivity can be enhanced and more uniform across a large touch screen.

[0176] At the same time, refer to Figure 3 and Figure 4 In the touch sensor included in the display panel 110 according to an embodiment of the present disclosure, all of the multiple contact holes CNT connecting the multiple receiving sensor electrodes SE_RX and the multiple receiving touch wirings TL_RX can be positioned at a position outer than the outermost sending touch wiring TL_TX among the multiple sending touch wirings TL_TX.

[0177] In other words, refer to Figure 3 and Figure 4 , the first touch wiring TL1, the second touch wiring TL2, and the fourth trace TL4 may be arranged to extend from the boundary area in the display area DA in the first direction. Here, the boundary area is a partial area included in the display area DA, and may be a partial area outside the sensor electrode SE4 arranged at the outermost side of the sensor electrodes SE_TX extending in the first direction. Figure 3 and Figure 4In the example, the boundary area may include a first boundary area positioned outside the sensor electrode SE_TX extending along the first direction than the sensor electrode SE3 set at the outermost side along the left direction (the direction opposite to the second direction), and a second boundary area positioned outside the sensor electrode SE_TX extending along the first direction than the sensor electrode SE3 set at the outermost side along the right direction (the second direction).

[0178] Figure 5 is another plan view illustrating a touch sensor included in the display panel 110 according to an embodiment of the present disclosure.

[0179] Reference Figure 5 In the touch sensor included in the display panel 110 according to an embodiment of the present disclosure, among the multiple contact holes CNT connecting the multiple receiving sensor electrodes SE_RX and the multiple receiving touch wirings TL_RX, some of the contact holes CNT can be positioned at the outer side of the outermost sending touch wiring TL_TX among the multiple sending touch wirings TL_TX, and other contact holes CNT can be positioned at positions inner than the outermost sending touch wiring TL_TX among the multiple third touch wirings TL_TX and some sending sensor electrodes SE_TX (for example, the third sensor electrode SE3 set at the outermost side).

[0180] For example, the reception touch wirings TL_RX respectively corresponding to different reception sensor electrodes SE_RX may be disposed so that the transmission sensor electrode SE_TX (eg, the third sensor electrode SE3 ) is interposed therebetween.

[0181] Reference Figure 5 , some of the multiple contact holes CNT connecting the multiple receiving sensor electrodes SE_RX and the multiple receiving touch wirings TL_RX can be positioned between two adjacent transmitting touch wirings TL_TX (for example, some of the receiving touch wirings TL_RX can be arranged to pass through the middle of the display area DA to connect to the corresponding receiving sensor electrodes SE_RX).

[0182] Reference Figure 5 , at least one of the plurality of receiving touch wirings TL_RX (e.g., TL4) may cross some of the plurality of transmitting touch wirings TL_TX. In other words, at least one of the plurality of receiving touch wirings TL_RX (e.g., TL4) may overlap some of the plurality of transmitting touch wirings TL_TX.

[0183] exist Figure 3 , Figure 4 and Figure 5In the touch sensor, each of the plurality of transmitting sensor electrodes SE_TX may be arranged to extend along a first direction (eg, a column direction), and each of the plurality of receiving sensor electrodes SE_RX may be arranged to extend along a second direction (eg, a row direction).

[0184] In this case, the touch drive circuit 160 can supply a touch drive signal having a signal waveform whose voltage level varies over time to at least one of a plurality of transmitting sensor electrodes SE_TX arranged to extend along a first direction, and can respectively sense at least one of a plurality of receiving sensor electrodes SE_RX arranged to extend along a second direction.

[0185] Figure 6 is another plan view illustrating a touch sensor included in the display panel 110 according to an embodiment of the present disclosure.

[0186] Reference Figure 6 In the touch sensor included in the display panel 110 according to an embodiment of the present disclosure, each of the plurality of transmitting sensor electrodes SE_TX may be arranged to extend in a second direction (e.g., a row direction), and each of the plurality of receiving sensor electrodes SE_RX may be arranged to extend along a first direction (e.g., a column direction).

[0187] In this case, the touch drive circuit 160 can supply a touch drive signal having a signal waveform whose voltage level varies over time to at least one of a plurality of transmitting sensor electrodes SE_TX arranged to extend along the second direction, and can sense at least one of a plurality of receiving sensor electrodes SE_RX arranged to extend along the first direction.

[0188] exist Figures 3 to 7 In the embodiment, the plurality of sensor electrodes SE disposed to extend along the second direction may include the first sensor electrode SE1 , the second sensor electrode SE2 , and the fourth sensor electrode SE4 , and the plurality of sensor electrodes SE disposed to extend along the first direction may include the third sensor electrode SE3 .

[0189] For example, in Figure 3 , Figure 4 , Figure 5 and Figure 7 , the plurality of reception sensor electrodes SE_RX extending along the second direction may include the first sensor electrode SE1 , the second sensor electrode SE2 , and the fourth sensor electrode SE4 , and the plurality of transmission sensor electrodes SE_TX extending along the first direction may include the third sensor electrode SE3 .

[0190] As another example, in Figure 6, the plurality of transmission sensor electrodes SE_TX extending along the second direction include the first sensor electrode SE1 , the second sensor electrode SE2 , and the fourth sensor electrode SE4 , and the plurality of reception sensor electrodes SE_RX extending along the first direction include the third sensor electrode SE3 .

[0191] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, at least one first touch wiring TL1 may be electrically connected to two opposite ends of the first sensor electrode SE1 that is arranged to extend in the second direction. In other words, one or two or more first touch wirings TL1 may be electrically connected to one end (e.g., the left portion) of the two opposite ends of the first sensor electrode SE1, and one or two or more first touch wirings TL1 may be electrically connected to the other end (e.g., the right portion) of the two opposite ends of the first sensor electrode SE1. In this case, when a signal is transmitted from two opposite sides of the first sensor electrode SE1, even when the first sensor electrode SE1 is longer in the second direction, a signal transmission delay at the first sensor electrode SE1 itself may be reduced.

[0192] Likewise, at least one second touch wiring TL2 may be electrically connected to two opposite ends of the second sensor electrode SE2 arranged to extend along the second direction. At least one fourth touch wiring TL4 may be electrically connected to two opposite ends of the fourth sensor electrode SE4 arranged to extend along the second direction and touch sensing accuracy may be improved.

[0193] Alternatively, at least one first touch wiring TL1 may be electrically connected to only one of two opposite ends of the first sensor electrode SE1 arranged to extend in the second direction. At least one second touch wiring TL2 may be electrically connected to only one of two opposite ends of the second sensor electrode SE2 arranged to extend in the second direction. At least one fourth touch wiring TL4 may be electrically connected to only one of two opposite ends of the fourth sensor electrode SE4 arranged to extend in the second direction.

[0194] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the two first touch wirings TL1 connected to the two opposite ends of the first sensor electrode SE1 can be electrically connected to the two first pads PD1. The two second touch wirings TL2 connected to the two opposite ends of the second sensor electrode SE2 can be electrically connected to the two second pads PD2. The two fourth touch wirings TL4 connected to the two opposite ends of the fourth sensor electrode SE4 can be electrically connected to the two fourth pads PD4.

[0195] Figure 7 is another plan view illustrating a touch sensor included in the display panel 110 according to an embodiment of the present disclosure.

[0196] Reference Figure 7 , two first touch wirings TL1 may be electrically connected to two opposite ends of the first sensor electrode SE1 arranged to extend in the second direction. In other words, one first touch wiring TL1 may be electrically connected to one of the two opposite ends of the first sensor electrode SE1, and one first touch wiring TL1 may be electrically connected to the other of the two opposite ends of the first sensor electrode SE1. In this case, when the first sensor electrode SE1 is longer in the second direction, the signal transmission delay of the first sensor electrode SE1 itself may be reduced.

[0197] Likewise, the two second touch wirings TL2 may be electrically connected to two opposite ends of the second sensor electrode SE2 disposed to extend in the second direction. The two fourth touch wirings TL4 may be electrically connected to two opposite ends of the fourth sensor electrode SE4 disposed to extend in the second direction.

[0198] As described above, by connecting two touch wirings TL to one sensor electrode SE, a signal transmission delay occurring in the sensor electrode SE itself can be reduced.

[0199] Reference Figure 7 , two first touch wirings TL1 connected to two opposite ends of the first sensor electrode SE1 may be connected in common to one first pad PD1. Two second touch wirings TL2 connected to two opposite ends of the second sensor electrode SE2 may be connected in common to one second pad PD2. Two fourth touch wirings TL4 connected to two opposite ends of the fourth sensor electrode SE4 may be connected in common to one fourth pad PD4.

[0200] According to the pad sharing structure, one pad can be connected to two touch wirings TL connected to two opposite ends of one sensor electrode SE. Therefore, the number of pads in the display panel 110 and the size of the pad area PA can be reduced, and the number of pads (the number of channels) of the touch drive circuit 160 connected to the pad area PAD can be reduced. Therefore, the size of the touch drive circuit 160 can also be reduced. In addition, the sending touch wiring TL_TX can overlap with the receiving touch wiring TL_RX in the first non-display area to reach its corresponding pad to save more space and further reduce the wiring occupation area (such as Figure 7 shown).

[0201] Reference Figures 3 to 7, a plurality of transmission pads PD_TX and a plurality of reception pads PD_RX provided in the pad region PD may be arranged to be clustered for each type. In other words, a plurality of transmission pads PD_TX may be arranged together, and a plurality of reception pads PD_RX may be arranged together.

[0202] Alternatively, a plurality of transmission pads PD_TX and a plurality of reception pads PD_RX provided in the pad region PD may be mixedly arranged and wirings may overlap each other.

[0203] Reference Figure 3 , Figure 4 and Figure 6 In the first non-display area NDA1, the plurality of transmission touch wirings TL_TX and the plurality of reception touch wirings TL_RX may not cross each other. In this case, the plurality of transmission touch wirings TL_TX and the plurality of reception touch wirings TL_RX may not overlap in the vertical direction. Therefore, the plurality of transmission touch wirings TL_TX and the plurality of reception touch wirings TL_RX may be provided in different metal layers, or may be provided in the same metal layer.

[0204] Reference Figure 5 and Figure 7 , in the first non-display area NDA1, all or some of the plurality of receiving touch wirings TL_RX may cross all or some of the plurality of transmitting touch wirings TL_TX. In this case, the plurality of transmitting touch wirings TL_TX and the plurality of receiving touch wirings TL_RX may overlap each other in the vertical direction. Therefore, the plurality of transmitting touch wirings TL_TX and the plurality of receiving touch wirings TL_RX should be provided in different metal layers.

[0205] For example, Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, when each of the plurality of transmission sensor electrodes SE_TX is arranged to extend along the first direction and each of the plurality of reception sensor electrodes SE_RX is arranged to extend along the second direction, the plurality of transmission touch wirings TL_TX electrically connected to the plurality of transmission sensor electrodes SE_TX may be arranged in the bridge metal layer, and the plurality of reception touch wirings TL_RX electrically connected to the plurality of reception sensor electrodes SE_RX may be arranged in the jumper metal layer. In other words, the plurality of transmission touch wirings TL_TX electrically connected to the plurality of transmission sensor electrodes SE_TX may include the bridge metal BM, and the plurality of reception touch wirings TL_RX electrically connected to the plurality of reception sensor electrodes SE_RX may include the jumper metal JM.

[0206] For example, Figure 6As shown, when each of the plurality of transmitting sensor electrodes SE_TX is arranged to extend along the second direction and each of the plurality of receiving sensor electrodes SE_RX is arranged to extend along the first direction, the plurality of transmitting touch wirings TL_TX electrically connected to the plurality of transmitting sensor electrodes SE_TX may be arranged in a jumper metal layer, and the plurality of receiving touch wirings TL_RX electrically connected to the plurality of receiving sensor electrodes SE_RX may be arranged in a bridge metal layer. In other words, the plurality of transmitting touch wirings TL_TX electrically connected to the plurality of transmitting sensor electrodes SE_TX may include jumper metals JM, and the plurality of receiving touch wirings TL_RX electrically connected to the plurality of receiving sensor electrodes SE_RX may include bridge metals BM. Referring to Figures 3 to 7 , the substrate 111 may include a display area DA where a plurality of sub-pixels SP are disposed and a non-display area NDA including a pad area PA located along a first direction from the display area DA.

[0207] Reference Figures 3 to 7 , the non-display area NDA may include a first non-display area NDA1 positioned along a first direction from the display area DA, a second non-display area NDA2 positioned along a second direction from the display area DA, a third non-display area NDA3 positioned in a direction opposite to the first direction from the display area DA, and a fourth non-display area NDA4 positioned 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).

[0208] Reference Figures 3 to 7 The plurality of sensor electrodes SE may include a first sensor electrode SE1 disposed in the display area DA and extending along the second direction and a second sensor electrode SE2 disposed in the display area DA and extending along the second direction.

[0209] Reference Figures 3 to 7 , the plurality of pads PD may include a first pad PD1 disposed in the pad area PA and a second pad PD2 disposed in the pad area PA.

[0210] Reference Figures 3 to 7 The plurality of touch wirings TL may include a first touch wiring TL1 electrically connecting the first sensor electrode SE1 and the first pad PD1 , and a second touch wiring TL2 electrically connecting the second sensor electrode SE2 and the second pad PD2 .

[0211] Reference Figures 3 to 7, the second sensor electrode SE2 may be positioned closer to the pad area PA than the first sensor electrode SE1. In this case, since the display panel 110 has an internal touch wiring structure, the first touch wiring TL1 may overlap the second sensor electrode SE2.

[0212] Reference Figures 3 to 7 , the first touch wiring TL1 and the second touch wiring TL2 may extend to the pad area PA across the display area DA along the first direction.

[0213] Reference Figures 3 to 7 The multiple sensor electrodes SE may also include a third sensor electrode SE3 arranged in the display area DA and extending along the first direction and a fourth sensor electrode SE4 arranged in the display area DA and extending along the second direction, the multiple pads PD may also include a third pad PD3 arranged in the pad area PA and a fourth pad PD4 arranged in the pad area PA, and the multiple touch wirings TL may include a third touch wiring TL3 for electrically connecting the third sensor electrode SE3 and the third pad PD3 and a fourth sensor wiring TL4 for electrically connecting the fourth sensor electrode SE4 and the fourth pad PD4.

[0214] The fourth sensor electrode SE4 may be disposed in parallel to the first sensor electrode SE1 and the second sensor electrode SE2 .

[0215] The fourth sensor electrode SE4 may be positioned closer to the pad area PA than the first and second sensor electrodes SE1 and SE2 .

[0216] According to the internal touch routing structure of the display panel 110 , each of the first touch wiring TL1 , the second touch wiring TL2 , and the fourth touch wiring TL4 may overlap the fourth sensor electrode SE4 .

[0217] Reference Figure 3 , Figure 4 , Figure 5 and Figure 7 , among the first sensor electrode SE1 , the second sensor electrode SE2 , the third sensor electrode SE3 , and the fourth sensor electrode SE4 , the third sensor electrode SE3 may be the transmitting sensor electrode SE_TX, and the first sensor electrode SE1 , the second sensor electrode SE2 , and the fourth sensor electrode SE4 may be the receiving sensor electrode SE_RX.

[0218] Therefore, a signal (touch driving signal) whose voltage level is changed may be supplied from the touch driving circuit 160 to the third sensor electrode SE3 .

[0219] Reference Figure 6, among the first sensor electrode SE1 , the second sensor electrode SE2 , the third sensor electrode SE3 , and the fourth sensor electrode SE4 , the third sensor electrode SE3 may be the receiving sensor electrode SE_RX, and the first sensor electrode SE1 , the second sensor electrode SE2 , and the fourth sensor electrode SE4 may be the transmitting sensor electrode SE_TX.

[0220] A signal (touch drive signal) of which a voltage level is changed may be supplied from the touch drive circuit 160 to each of the first sensor electrode SE1 , the second sensor electrode SE2 , and the fourth sensor electrode SE4 .

[0221] Reference Figure 4 , the number of first touch wirings TL1 connected to the first sensor electrode SE1 (for example, two) may be greater than the number of fourth touch wirings TL4 connected to the fourth sensor electrode SE4 (for example, one). For example, the number of first touch wirings TL1 connected to the first sensor electrode SE1 may be twice the number of fourth touch wirings TL4 connected to the fourth sensor electrode SE4. Figure 4 As shown, the number of first touch wirings TL1 connected to the first sensor electrode SE1 may be four, and the number of fourth touch wirings TL4 connected to the fourth sensor electrode SE4 may be two. As another example, the number of first touch wirings TL1 connected to the first sensor electrode SE1 may be two, and the number of fourth touch wirings TL4 connected to the fourth sensor electrode SE4 may be one.

[0222] Reference Figures 3 to 7 , the third sensor electrode SE3 may cross the first sensor electrode SE1 , the second sensor electrode SE2 , and the fourth sensor electrode SE4 .

[0223] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7 , the first to fourth touch wirings TL1, TL2, and TL4 may be disposed on the outermost edge of the third sensor electrode SE3 disposed at the outermost edge of the sensor electrodes SE disposed to extend in the first direction.

[0224] Reference Figure 5 , among the first touch wiring TL1 , the second touch wiring TL2 , and the fourth touch wiring TL4 , the first touch wiring TL1 and the second touch wiring TL2 may be disposed on the outside of the third sensor electrode SE3 , and the fourth touch wiring TL4 may be disposed on the inside of the third sensor electrode SE3 .

[0225] In this case, the third sensor electrode SE3 may be disposed between the first touch wiring TL1 and the fourth touch wiring TL4. Alternatively, the third sensor electrode SE3 may be disposed between the first touch wiring TL1 and the contact hole CNT of the first sensor electrode SE1 and the fourth touch wiring TL4 and the contact hole CNT of the fourth sensor electrode SE4.

[0226] Reference Figures 3 to 7 , a plurality of transmission pads PD_TX and a plurality of reception pads PD_RX provided in the pad region PD may be arranged to be clustered for each type. In other words, a plurality of transmission pads PD_TX may be arranged together, and a plurality of reception pads PD_RX may be arranged together.

[0227] Alternatively, a plurality of transmission pads PD_TX and a plurality of reception pads PD_RX provided in the pad region PD may be mixed and provided.

[0228] Reference Figure 5 , when multiple transmitting pads PD_TX and multiple receiving pads PD_RX set in the pad area PD are set to be clustered for each type, the fourth pad PD4 as the receiving pad PD_RX can be set between the first pad PD1 as the receiving pad PD_RX and the third pad PD3 as the transmitting pad PD_TX.

[0229] In this case, the fourth touch wiring TL4 may cross the third touch wiring TL3. Therefore, the fourth touch wiring TL4 should be located in a different metal layer from the third touch wiring TL3. For example, the fourth touch wiring TL4 may include a jumper metal, and the third touch wiring TL3 may include a bridge metal.

[0230] When a plurality of transmission pads PD_TX and a plurality of reception pads PD_RX provided in the pad area PD are set to be mixed, Figure 5 Differently, the third pad PD3 as the transmission pad PD_TX may be provided between the first pad PD1 as the reception pad PD_RX and the fourth pad PD4 as the reception pad PD_RX.

[0231] The fourth touch wiring TL4 may not cross the third touch wiring TL3. Therefore, the fourth touch wiring TL4 may be located in the same metal layer as the third touch wiring TL3. For example, the fourth touch wiring TL4 and the fourth touch wiring TL4 may include a bridge metal BM or a jumper metal JM.

[0232] In the following, for the convenience of description, the plurality of sensor electrodes SE arranged to extend in the first direction are the transmitting sensor electrodes SE_TX, and the plurality of sensor electrodes SE arranged to extend in the second direction are the receiving sensor electrodes SE_RX. However, even if the plurality of sensor electrodes SE arranged to extend in the first direction are the receiving sensor electrodes SE_RX, and the plurality of sensor electrodes SE arranged to extend in the second direction are the transmitting sensor electrodes SE_TX, the following description may also be applied.

[0233] Figure 8 A partial area 300 of the touch sensor included in the display panel 110 according to an embodiment of the present disclosure is exemplarily shown in detail. Figure 8 It is shown Figure 3 In the following description, reference is also made to Figures 3 to 7 .

[0234] As described above, the substrate 111 of the display panel 110 according to an embodiment of the present disclosure may include the display area DA where the plurality of sub-pixels SP are disposed and the non-display area NDA including the pad area PA located in the first direction from the display area DA.

[0235] Reference Figure 8 ,exist Figure 3 In the partial area 300 of the touch sensor, the first receiving sensor electrode SE_RX1 and the second receiving sensor electrode SE_RX2 extending along the second direction (e.g., the row direction) may be provided, and the first transmitting sensor electrode SE_TX1, the second transmitting sensor electrode SE_TX2, and the third transmitting sensor electrode SE_TX3 extending along the first direction (e.g., the column direction) may be provided. Here, the first direction and the second direction may be directions crossing each other.

[0236] Reference Figure 8 , in Figure 3 In the partial area 300 of the touch sensor, a first reception touch wiring TL_RX1 electrically connected to the first reception sensor electrode SE_RX1 and a second reception touch wiring TL_RX2 electrically connected to the second reception sensor electrode SE_RX2 may also be provided.

[0237] Reference Figure 8 The first, second, and third transmission sensor electrodes SE_TX1, SE_TX2, and SE_TX3 may be electrically connected to the first, second, and third transmission touch wirings TL_TX1, TL_TX2, and TL_TX3, respectively, in or near the first non-display area NDA1.

[0238] Hereinafter, the first receiving sensor electrode SE_RX1 may be referred to as the first sensor electrode SE1, the second receiving sensor electrode SE_RX2 may be referred to as the second sensor electrode SE2, and the first transmitting sensor electrode SE_TX1 may be referred to as the third sensor electrode SE3. In addition, the first receiving touch wiring TL_RX1 may be referred to as the first touch wiring TL1, the second receiving touch wiring TL_RX2 may be referred to as the second touch wiring TL2, and the first transmitting touch wiring TL_TX1 may be referred to as the third touch wiring TL3. In addition, the first receiving pad PD_RX to which the first receiving sensor electrode SE_RX1 is connected through the first receiving touch wiring TL_RX1 may be referred to as the first pad PD1, the second receiving pad PD_RX to which the second receiving sensor electrode SE_RX2 is connected through the second receiving touch wiring TL_RX2 may be referred to as the second pad PD2, and the first transmitting pad PD_TX to which the first transmitting sensor electrode SE_TX1 is connected through the first transmitting touch wiring TL_TX1 may be referred to as the third pad PD3.

[0239] The first sensor electrode SE1 may include: a plurality of first sub sensor electrodes SUB1a, SUB1b, SUB1c, and SUB1d disposed in the display area DA and arranged along the second direction; and at least one first bridge BRG1 electrically connecting the plurality of first sub sensor electrodes.

[0240] The second sensor electrode SE2 may include a plurality of second sub sensor electrodes SUB2a, SUB2b, SUB2c, and SUB2d disposed in the display area DA and arranged along the second direction, and at least one second bridge BRG2 electrically connecting the plurality of second sub sensor electrodes SUB2a, SUB2b, SUB2c, and SUB2d.

[0241] The third sensor electrode SE3 may be disposed in the display area DA, may be disposed in the first direction, and may be disposed to pass between two adjacent first sub sensor electrodes (e.g., SUB1a and SUB1b) among the plurality of first sub sensor electrodes SUB1a, SUB1b, SUB1c, and SUB1d included in the first sensor electrode SE1.

[0242] In addition, the third sensor electrode SE3 can be set in the display area DA, can be set in the first direction, and can be set to pass between two adjacent second sub-sensor electrodes (for example, SUB2a and SUB2b) among the multiple second sub-sensor electrodes SUB2a, SUB2b, SUB2c and SUB2d included in the second sensor electrode SE2.

[0243] In other words, the third sensor electrode SE3 may be configured to extend along the first direction while passing between two first sub sensor electrodes (e.g., SUB1a and SUB1b) included in the first sensor electrode SE1 and between two second sub sensor electrodes (e.g., SUB2a and SUB2b) included in the second sensor electrode SE2.

[0244] The third sensor electrode SE3 may cross and overlap the first bridge BRG1 and the second bridge BRG2 However, the third sensor electrode SE3 may be electrically separated (isolated) from the first bridge BRG1 and the second bridge BRG2.

[0245] The first touch wiring TL1 may electrically connect at least one (for example, SUB1a) of the plurality of first sub sensor electrodes SUB1a, SUB1b, SUB1c, and SUB1d included in the first sensor electrode SE1 to the first pad PD1 provided in the pad area PA.

[0246] In other words, a portion of the first touch wiring TL1 may be electrically connected to at least one (e.g., SUB1a) of the plurality of first sub-sensor electrodes SUB1a, SUB1b, SUB1c, and SUB1d included in the first sensor electrode SE1 through the contact hole CNT, and another portion of the first touch wiring TL1 may be electrically connected to the first pad PD1.

[0247] The second touch wiring TL2 may electrically connect at least one (for example, SUB2a) of the plurality of second sub sensor electrodes SUB2a, SUB2b, SUB2c, and SUB2d included in the second sensor electrode SE2 to the second pad PD2 provided in the pad area PA.

[0248] In other words, a portion of the second touch wiring TL2 can be electrically connected to at least one (e.g., SUB2a) of the plurality of second sub-sensor electrodes SUB2a, SUB2b, SUB2c and SUB2d included in the second sensor electrode SE2 through the contact hole CNT, and another portion of the second touch wiring TL2 can be electrically connected to the second pad PD2.

[0249] The third touch wiring TL3 may electrically connect the third sensor electrode SE3 and the third pad PD3 provided in the pad area PA.

[0250] The first sensor electrode SE1 and the second sensor electrode SE2 may be disposed in parallel with each other. The second sensor electrode SE2 may be disposed closer to the pad area PA than the first sensor electrode SE1.

[0251] The third sensor electrode SE3 may be disposed to cross the first sensor electrode SE1 and the second sensor electrode SE2 .

[0252] Reference Figure 8 Since the display panel 110 has an internal touch routing structure, the first touch wiring TL1 may overlap at least one (eg, SUB2a) of the plurality of second sub sensor electrodes SUB2a, SUB2b, SUB2c, and SUB2d included in the second sensor electrode SE2.

[0253] Reference Figure 8 , the two first sub sensor electrodes SUB1a and SUB1b included in the first sensor electrode SE1 may be placed in a first space set by a narrow portion of the third sensor electrode SE3. The two second sub sensor electrodes SUB2a and SUB2b included in the second sensor electrode SE2 may be placed in a second space set by a narrow portion of the third sensor electrode SE3. Therefore, the effective area of ​​the touch sensor may be significantly expanded to enhance touch sensitivity.

[0254] According to the shape and internal touch routing structure of the touch sensor, the third sensor electrode SE3 may overlap the first touch wiring TL1 and the second touch wiring TL2 .

[0255] Reference Figure 8 , a plurality of first sub sensor electrodes SUB1a, SUB1b, SUB1c, and SUB1d included in the first sensor electrode SE1 may be disposed in the first metal layer SML. The first bridge BRG1 may be disposed in a second metal layer BML different from the first metal layer SML. The first touch wiring TL1 may be disposed across the display area DA in the first direction to extend to the pad area PA, and may be disposed in a third metal layer JML different from the first metal layer SML and the second metal layer BML.

[0256] Reference Figure 8 , a plurality of second sub-sensor electrodes SUB2a, SUB2b, SUB2c, and SUB2d included in the second sensor electrode SE2 may be disposed in the first metal layer SML. The second bridge BRG2 may be disposed in a second metal layer BML different from the first metal layer SML. The second touch wiring TL2 may be disposed across the display area DA in the first direction to extend to the pad area PA, and may be disposed in a third metal layer JML different from the first metal layer SML and the second metal layer BML.

[0257] Reference Figure 8 , the third sensor electrode SE3 may be disposed in the first metal layer SML.

[0258] Reference Figure 8, the third touch wiring TL3 may be disposed in a different metal layer from the first touch wiring TL1 and the second touch wiring TL2 .

[0259] For example, the first touch wiring TL1 and the second touch wiring TL2 may be disposed in the third metal layer JML, and the third touch wiring TL3 may be disposed in the second metal layer BML.

[0260] Hereinafter, for convenience of description, the first metal layer SML is referred to as a sensor metal layer SML, the second metal layer BML is referred to as a bridge metal layer BML, and the third metal layer JML is referred to as a jumping metal layer JML.

[0261] Fig. 9 A unit sensor 800 among the touch sensors included in the display panel 110 according to an embodiment of the present disclosure is shown. Here, the unit sensor 800 may mean a region where one transmitting touch electrode SE_TX and one receiving touch sensor electrode SE_RX cross each other.

[0262] Reference Fig. 9 , each of the plurality of first sub sensor electrodes SUB1a and SUB1b included in the first sensor electrode SE1 may be formed of a mesh sensor metal SM that is disposed in the sensor metal layer SML and has an opening OA.

[0263] The third sensor electrode SE3 may also be formed of a mesh sensor metal SM provided in the sensor metal layer SML and having an opening OA.

[0264] Here, each opening OA formed in each of the first sensor electrode SE1 and the third sensor electrode SE3 may correspond to a light emitting region of at least one sub-pixel SP. In other words, light emitted from the light emitting element ED of at least one sub-pixel SP may pass through each opening OA.

[0265] Reference Fig. 9 , two first sub sensor electrodes SUB1a and SUB1b included in the first sensor electrode SE1 may be placed in a first space set by a narrow portion of the third sensor electrode SE3.

[0266] Reference Fig. 9 The first bridge BRG1 included in the first sensor electrode SE1 may be disposed in the bridge metal layer BML. The first bridge BRG1 included in the first sensor electrode SE1 may be disposed to be bent or curved along the shape of the sensor metal SM constituting the two first sub sensor electrodes SUB1a and SUB1b included in the first sensor electrode SE1.

[0267] Reference Fig. 9, the first bridge BRG1 included in the first sensor electrode SE1 may cross the third sensor electrode SE3 .

[0268] Reference Fig. 9 , the first bridge BRG1 included in the first sensor electrode SE1 may be disposed to be bent or curved along the shape of the mesh sensor metal SM constituting each of the first sensor electrode SE1 and the third sensor electrode SE3 .

[0269] The first bridge BRG1 included in the first sensor electrode SE1 may vertically overlap the mesh sensor metal SM constituting each of the first and third sensor electrodes SE1 and SE3 .

[0270] The first bridge BRG1 included in the first sensor electrode SE1 may be disposed to avoid at least one of the openings OA of the first and third sensor electrodes SE1 and SE3 .

[0271] Therefore, the light emitting area of ​​the sub-pixel SP may be prevented from being reduced due to the first bridge BRG1 , and the light emitting area of ​​the sub-pixel SP may be enlarged and light emitting efficiency may be improved.

[0272] Reference Fig. 9 The first touch wiring TL1 electrically connected to the first sensor electrode SE1 may be disposed in the jumper metal layer JML, and may be disposed to be bent or curved along the shape of the sensor metal SM constituting the first sensor electrode SE1.

[0273] The first touch wiring TL1 electrically connected to the first sensor electrode SE1 may vertically overlap the mesh sensor metal SM constituting each of the first and third sensor electrodes SE1 and SE3 .

[0274] The first touch wiring TL1 electrically connected to the first sensor electrode SE1 may be disposed to avoid at least one of the openings OA of the first and third sensor electrodes SE1 and SE3 .

[0275] Therefore, the light emitting area of ​​the sub-pixel SP may be prevented from being reduced due to the first touch wiring TL1 , and the light emitting area of ​​the sub-pixel SP may be enlarged and light emitting efficiency may be improved.

[0276] Fig.10 and Fig.11 A stack structure of a touch sensor included in the display panel 110 according to an embodiment of the present disclosure is shown. Fig.10 The two first sub-sensor electrodes SUB1a and SUB1b are shown in FIG. Fig. 9 9 is a vertical cross-sectional structure of an area 900 connected by the first bridge BRG1. Fig.11Shown in Fig. 9 A vertical cross-sectional structure along line AB in a region where the first touch wiring TL1 and the first sub sensor electrode SUB1a are electrically connected.

[0277] Reference Fig.10 and Fig.11 When the display panel 110 is a self-luminous display panel, the display panel 110 may include an encapsulation layer 200 on the light emitting element ED.

[0278] Reference Fig.10 and Fig.11 In order to form a touch sensor, the display panel 110 may further include a first touch interlayer insulating film 1010 on the encapsulation layer 200 , a second touch interlayer insulating film 1020 on the first touch interlayer insulating film 1010 , and a touch protection film 1030 on the second touch interlayer insulating film 1020 .

[0279] Reference Fig.10 and Fig.11 The jumper metal layer JML may be disposed between the encapsulation layer 200 and the first touch interlayer insulating film 1010. The bridge metal layer BML may be disposed between the first touch interlayer insulating film 1010 and the second touch interlayer insulating film 1020. The sensor metal layer SML may be disposed between the second touch interlayer insulating film 1020 and the touch protection film 1030.

[0280] Reference Fig.10 and Fig.11 In order to form a touch sensor, the display panel 110 may further include a touch buffer film 1000 between the encapsulation layer 200 and the first touch interlayer insulating film 1010. In this case, a jumper metal layer JML may be provided between the touch buffer film 1000 and the first touch interlayer insulating film 1010.

[0281] In an embodiment of the present disclosure, when the specific metal includes a jumper metal JM, this may mean that the metal is set in a jumper metal layer JML; when the specific metal includes a bridge metal BM, this may mean that the metal is set in a bridge metal layer BML; and when the specific metal includes a sensor metal SM, this may mean that the metal is set in a sensor metal layer SML.

[0282] Reference Fig.10 and Fig.11 , the second touch interlayer insulating film 1020 may include an inorganic film. Alternatively, the second touch interlayer insulating film 1020 may include an organic film.

[0283] Reference Fig.10 and Fig.11When the second touch interlayer insulating film 1020 includes an organic film, noise between the sensor metal layer SML on the second touch interlayer insulating film 1020 and the bridge metal layer BML or the jumper metal layer JML under the second touch interlayer insulating film 1020 can be reduced. For example, parasitic capacitance between the sensor metal layer SML on the second touch interlayer insulating film 1020 and the bridge metal layer BML or the jumper metal layer JML under the second touch interlayer insulating film 1020 can be reduced.

[0284] Reference Fig.10 and Fig.11 , the first touch interlayer insulating film 1010 may include an inorganic film. Alternatively, the first touch interlayer insulating film 1010 may include an organic film.

[0285] Reference Fig.10 and Fig.11 When the first touch interlayer insulating film 1010 includes an organic film, noise between the sensor metal layer SML or the bridge metal layer BML on the first touch interlayer insulating film 1010 and the jumper metal layer JML under the first touch interlayer insulating film 1010 can be reduced. For example, when the first touch interlayer insulating film 1010 includes an organic film, parasitic capacitance between the sensor metal layer SML or the bridge metal layer BML on the first touch interlayer insulating film 1010 and the jumper metal layer JML under the first touch interlayer insulating film 1010 can be reduced.

[0286] Reference Fig.10 To configure the first sensor electrode SE1 , two adjacent first sub sensor electrodes SUB1a and SUB1b may be disposed on the second touch interlayer insulating film 1020 and may be electrically connected to the first bridge BRG1 disposed in the bridge metal layer BML through a contact hole of the second touch interlayer insulating film 1020 .

[0287] Reference Fig.10 , the third sensor electrode SE3 may be disposed between the two first sub sensor electrodes SUB1a and SUB1b. Here, the two first sub sensor electrodes SUB1a and SUB1b and the third sensor electrode SE3 may be disposed together in the sensor metal layer SML.

[0288] Reference Fig.10 , a portion of the first bridge BRG1 disposed in the bridge metal layer BML may overlap the third sensor electrode SE3 disposed in the sensor metal layer SML.

[0289] Reference Fig.11The mesh first sub sensor electrode SUB1a included in the first sensor electrode SE1 may be disposed on the second touch interlayer insulating film 1020 and may be electrically connected to the first touch wiring TL1 disposed in the jumper metal layer JML through contact holes of the second touch interlayer insulating film 1020 and the first touch interlayer insulating film 1010 .

[0290] In the following, reference is made to Figures 12 to 19 The vertical structure of the display panel 110 according to the above-mentioned embodiment of the present disclosure is described in more detail.

[0291] Fig.12 is a plan view of a display panel 110 according to an embodiment of the present disclosure. Figure 2A and Figure 3 .

[0292] Reference Fig.12 , the touch sensor according to the embodiment of the present disclosure may include m transmission sensor electrodes SE_TX1 to SE_TXm and n reception sensor electrodes SE_RX1 to SE_RXn. Here, m is a natural number of 2 or more, and n is a natural number of 2 or more.

[0293] Each of the n reception sensor electrodes SE_RX1 to SE_RXn may be formed of at least one bridge BRG electrically connecting the plurality of reception sub-sensor electrodes SUB and the plurality of reception sub-sensor electrodes SUB.

[0294] Reference Fig.12 , m or more transmission touch wirings TL_TX1 to TL_TXm may electrically connect the m transmission sensor electrodes SE_TX1 to SE_TXm with the transmission pad PD_TX provided in the pad area PA.

[0295] Reference Fig.12 , m or more transmission touch wirings TL_TX1 to TL_TXm may extend to the pad area PA through the first touch wiring area TRA1 in the first non-display area NDA1.

[0296] Reference Fig.12 , n or more reception touch wirings TL_RX1 to TL_RXn may electrically connect the n reception sensor electrodes SE_RX1 to SE_RXn with the reception pad PD_RX provided in the pad area PA.

[0297] Reference Fig.12, n or more receiving touch wirings TL_RX1 to TL_RXn may extend across the display area DA in the first direction to the pad area PA in the first non-display area NDA1 without passing through the second and fourth non-display areas NDA2 and NDA4.

[0298] Reference Fig.12 , the contact hole CNT connecting the n or more reception touch wirings TL_RX1 to TL_RXn and the n reception sensor electrodes SE_RX1 to SE_RXn may be positioned outside the first transmission sensor electrode SE_TX1 disposed at the outermost edge among the m transmission sensor electrodes SE_TX1 to SE_TXm.

[0299] Therefore, n or more receiving touch wirings TL_RX1 to TL_RXn may be arranged to extend to the pad area PA without passing through the first touch wiring area TRA1 in the first non-display area NDA1. In other words, the n or more receiving touch wirings TL_RX1 to TL_RXn may not overlap with the m or more transmitting touch wirings TL_TX1 to TL_TXm arranged in the first touch routing area TRA1. In other words, since the receiving touch wiring TL_RX and the transmitting touch wiring TL_TX do not overlap each other (e.g., Fig.12 As shown), noise (e.g., parasitic capacitance) between the receiving touch wiring TL_RX and the sending touch wiring TL_TX can be avoided.

[0300] Hereinafter, the first receiving sensor electrode SE_RX1 may be referred to as the first sensor electrode SE1, the second receiving sensor electrode SE_RX2 may be referred to as the second sensor electrode SE2, the nth receiving sensor electrode SE_RXn may be referred to as the fourth sensor electrode SE4, and the first transmitting sensor electrode SE_TX1 may be referred to as the third sensor electrode SE3. In addition, the first receiving touch wiring TL_RX1 may be referred to as the first touch wiring TL1, the second receiving touch wiring TL_RX2 may be referred to as the second touch wiring TL2, the nth receiving touch wiring TL_RXn may be referred to as the fourth touch wiring TL4, and the first transmitting touch wiring TL_TX1 may be referred to as the third touch wiring TL3.

[0301] Figures 13 to 15 It is shown Fig.12 The main points of the display panel 110 are shown in FIG. Figures 13 to 15 When describing, we also refer to Figure 2A and Figure 3 .

[0302] Fig.132 is a vertical cross-sectional structure of a portion of the display area DA and the first non-display area NDA1 , and illustrates a portion of the third sensor electrode SE3 and a region where the third touch wiring TL3 is provided. Fig.14 2 is a vertical cross-sectional structure of a portion of the display area DA and the first non-display area NDA1 , and illustrates a portion of the fourth sensor electrode SE4 and a region where the fourth touch wiring TL4 is provided. Fig.15 2 is a vertical cross-sectional structure of a portion of the display area DA and the first non-display area NDA1 , and illustrates a vertical cross-sectional structure of a portion of the first sensor electrode SE1 and a region where the first touch wiring TL1 is provided.

[0303] Reference Fig.13 and Fig.14 The substrate 111 may include a display area DA and a first non-display area NDA1 which is an outer area of ​​the display area DA in the first direction and may include a bending area BA and a pad area PA.

[0304] Reference Fig.15 The substrate 111 may further include a second non-display area NDA2 and a fourth non-display area NDA4, the second non-display area NDA2 being an outer area of ​​the display area DA in the second direction, and the fourth non-display area NDA4 being an outer area of ​​the display area DA in a direction opposite to the second direction. The second non-display area NDA2 and the fourth non-display area NDA4 do not include the bending area BA and the pad area PA.

[0305] Reference Figures 13 to 15 , the first transistor T1 may be disposed on the substrate 111. The first transistor T1 may include a first electrode E1, a second electrode E2, a third electrode E3 and an active layer ACT. The second electrode E2 may be a gate electrode, the first electrode E1 may be a source electrode or a drain electrode, and the third electrode E3 may be a drain electrode or a source electrode.

[0306] For example, when the first transistor T1 has a coplanar structure, the active layer ACT may be disposed on the substrate 111, the gate insulating film 1310 may be disposed on the active layer ACT, and the second electrode E2 corresponding to the gate electrode may be disposed on the gate insulating film 1310. The interlayer insulating film 1330 may be disposed on the second electrode E2. The first electrode E1 and the third electrode E3 may be disposed on the interlayer insulating film 1330. The first electrode E1 may be connected to a portion of the active layer ACT through a contact hole of the interlayer insulating film 1330. The third electrode E3 may be connected to another portion of the active layer ACT through another contact hole of the interlayer insulating film 1330.

[0307] A planarization film 1350 may be disposed on the first transistor T1 .

[0308] Reference Figures 13 to 15 , a light emitting element ED including a pixel electrode PE, an element intermediate layer EL, and a common electrode CE may be formed on the planarization film 1350 .

[0309] The pixel electrode PE may be disposed on the planarization film 1350. The pixel electrode PE may be connected to the first electrode E1 of the first transistor T1 through a contact hole of the planarization film 1350.

[0310] A bank 1360 may be disposed on the pixel electrode PE. The bank 1360 may have an opening in a region where a light emitting region of the light emitting element ED of the sub-pixel SP should be formed.

[0311] A portion of the element intermediate layer EL may be connected to a portion of the upper surface of the pixel electrode PE through the opening of the bank 1360. The common electrode CE may be disposed on the element intermediate layer EL.

[0312] Reference Figures 13 to 15 , the encapsulation layer 200 may be disposed on the common electrode CE. The encapsulation layer 200 may be a single film or a plurality of films.

[0313] For example, when the encapsulation layer 200 includes a plurality of films, the encapsulation layer 200 may have a structure in which inorganic films and organic films are alternately stacked. For example, the encapsulation layer 200 may include a first encapsulation layer 1371, a second encapsulation layer 1372, a third encapsulation layer 1373, etc., and the first encapsulation layer 1371 and the third encapsulation layer 1373 may be inorganic films, and the second encapsulation layer 1372 may be an organic film. The second encapsulation layer 1372 may be thicker than the first encapsulation layer 1371 and the third encapsulation layer 1373.

[0314] The encapsulation layer 200 may extend from the display area DA to a partial area of ​​the first non-display area NDA1.

[0315] The first encapsulation layer 1371 may be disposed on the common electrode CE, and the first encapsulation layer 1371 may be disposed to cover the common electrode CE. The first encapsulation layer 1371 may extend to the first non-display area NDA to cover at least one dam D1 and D2. The first encapsulation layer 1371 may extend to the pad area PA disposed outside the at least one dam D1 and D2 to overlap with the pad PD4.

[0316] The second encapsulation layer 1372 may be disposed on the first encapsulation layer 1371. The second encapsulation layer 1372 may be formed to have a sufficient thickness to prevent foreign matter (particles) from penetrating into the common electrode CE and the element intermediate layer EL including an organic material through the first encapsulation layer 1371. The second encapsulation layer 1372 may be formed through a curing process after being applied in a liquid form through an inkjet process.

[0317] The third encapsulation layer 1373 may be disposed on the second encapsulation layer 1372. The third encapsulation layer 1373 may be disposed to cover the second encapsulation layer 1372. The third encapsulation layer 1373 may cover the second encapsulation layer 1372, and may extend to the first non-display area NDA1 to cover at least one dam D1 and D2. In addition, the third encapsulation layer 1373 may extend to the pad area PA disposed outside the at least one dam D1 and D2 to overlap with the pad PD3. In this case, the first encapsulation layer 1371 and the third encapsulation layer 1373 may be formed to have the same end position.

[0318] For example, each of the first encapsulation layer 1371 and the third encapsulation layer 1373 may be formed of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, or titanium oxide.

[0319] For example, the second encapsulation layer 1372 may be formed of acrylic resin, epoxy resin, phenol resin, polyamide resin, or polyimide resin.

[0320] Reference Figures 13 to 15 , the 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 1000, a jumper metal layer JML, a first touch interlayer insulating film 1010, a bridge metal layer BML, a second touch interlayer insulating film 1020, a sensor metal layer SML, and a touch protection film 1030.

[0321] To form a touch sensor, such as Fig.10 and Fig.11 As shown, the touch buffer film 1000 may be disposed on the encapsulation layer 200, and as shown in FIG. Figures 13 to 15 As shown, the touch buffer film 1000 on the encapsulation layer 200 may be omitted.

[0322] The metal layer directly above the touch buffer film 1000 and the encapsulation layer 200 may be a jumper metal layer JML. The insulating film directly above the jumper metal layer JML may be a first touch interlayer insulating film 1010. The metal layer directly above the first touch interlayer insulating film 1010 may be a bridge metal layer BML. The insulating film directly above the bridge metal layer BML may be a second touch interlayer insulating film 1020. The metal layer directly above the second touch interlayer insulating film 1020 may be a sensor metal layer SML.

[0323] As mentioned above Fig.12 As described, n or more receiving touch wirings TL_RX1 to TL_RXn are arranged to extend to the pad area PA without passing through the first touch wiring area TRA1 in the first non-display area NDA1, and thus the n or more receiving touch wirings TL_RX1 to TL_RXn may not overlap with the m or more sending touch wirings TL_TX1 to TL_TXm arranged in the first touch wiring area TRA1.

[0324] The first touch interlayer insulating film 1010 may be formed of an inorganic film having a thickness less than that of an organic film. Of course, the first touch interlayer insulating film 1010 may be formed of an organic film. The inorganic film may have a thickness less than that of the organic film.

[0325] The second touch interlayer insulating film 1020 may be an inorganic film or an organic film.

[0326] When the first touch interlayer insulating film 1010 and / or the second touch interlayer insulating film 1020 are formed of an inorganic film, the inorganic film may be formed of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, or titanium oxide.

[0327] First, refer to Fig.13 , describes a vertical cross-sectional structure of a portion of the third sensor electrode SE3 and a region where the third touch wiring TL3 is provided.

[0328] Reference Fig.13 , the mesh-shaped third sensor electrode SE3 and the mesh-shaped fourth sensor electrode SE4 may be disposed in the display area DA.

[0329] The mesh third sensor electrode SE3 and the mesh fourth sensor electrode SE4 may be disposed in the sensor metal layer SML to include the sensor metal SM.

[0330] In the display area DA, the mesh-shaped third sensor electrode SE3 may be disposed to extend in the first direction. In the display area DA, the mesh-shaped fourth sensor electrode SE4 may be disposed to extend in the second direction.

[0331] Reference Fig.13 , the touch protection film 1030 may be disposed on the sensor electrodes SE including the third sensor electrode SE3 and the fourth sensor electrode SE4. The touch protection film 1030 may protect the touch sensor by blocking harmful environment and moisture from the outside and stabilize the characteristics of the display device 100. 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.

[0332] Reference Fig.13 , in the display area DA or the first non-display area NDA1, the third touch wiring TL3 electrically connected to or integrated with the mesh third sensor electrode SE3 may be electrically connected to the third pad PD3 provided in the pad area PA.

[0333] according to Fig.13 In the example of FIG. 1 , the third sensor electrode SE3 may be the first transmission sensor electrode SE_TX1 , the third touch wiring TL3 may be the first transmission touch wiring TL_TX1 , and the fourth sensor electrode SE4 may be the nth reception sensor electrode SE_RXn.

[0334] Reference Fig.13 , in the first non-display area NDA1 , the third touch wiring TL3 may be disposed along the first inclined surface SLP1 of the encapsulation layer 200 .

[0335] Reference Fig.13 , the third touch wiring TL3 may be electrically connected to the third pad PD3 disposed in the pad area PA through a connection pattern 1340a disposed outside the encapsulation layer 200. Here, the connection pattern 1340a may be disposed outside the encapsulation layer 200 and may be disposed on the interlayer insulating film 1330.

[0336] The third touch wiring TL3 may be a single-line type or a multi-line type.

[0337] For example, when the third touch wiring TL3 is a single line type, the third touch wiring TL3 may be disposed in the bridge metal layer BML.

[0338] For example, Fig.13 As shown, when the third touch wiring TL3 is a multi-line type, the third touch wiring TL3 may include a third lower sub-line TL3a and a third upper sub-line TL3b electrically connected to each other. The third lower sub-line TL3a may be disposed in the bridge metal layer BML as the second metal layer, and the third upper sub-line TL3b may be disposed in the sensor metal layer SML as the first metal layer.

[0339] Reference Fig.13, the third lower sub-line TL3 a may be disposed on the first touch interlayer insulating film 1010 , and the third upper sub-line TL3 b may be disposed on the second touch interlayer insulating film 1020 .

[0340] Reference Fig.13 The third lower sub-line TL3a and the third upper sub-line TL3b are disposed below and above the second touch interlayer insulating film 1020 to be separated from each other, but can be electrically connected to each other through the contact hole of the second touch interlayer insulating film 1020 in between. Therefore, the resistance of the third touch wiring TL3 can be reduced.

[0341] Reference Fig.13 At least one of the third lower sub-line TL3 a and the third upper sub-line TL3 b may be disposed outside the encapsulation layer 200 in the first non-display area NDA1 and may be electrically connected to the connection pattern 1340 a positioned on the interlayer insulating film 1330 .

[0342] Reference Fig.13 , the connection pattern 1340a may be disposed across the bending area BA and the pad area PA.

[0343] Reference Fig.13 , the display panel 110 may have a dam area DAM disposed in the non-display area NDA and disposed to surround the display area DA. At least one dam D1 or D2 may be disposed in the dam area DAM.

[0344] At least one dam D1 or D2 may be included in the encapsulation layer 200 and may block the flow of the second encapsulation layer 1372, which may be an organic film. In other words, the at least one dam D1 or D2 may prevent the second encapsulation layer 1372, which may be an organic film, from collapsing. Therefore, the at least one dam D1 or D2 may prevent the second encapsulation layer 1372, which may be an organic film, from being exposed to the outside of the display device 100 or intruding into the pad area PA.

[0345] At least one dam D1 and D2 may be provided.

[0346] The first dam D1 may be disposed near an outer point of the second encapsulation layer 1372 included in the encapsulation layer 200. The first dam D1 may be disposed to surround the periphery of the display area DA to mainly block the flow of the second encapsulation layer 1372. In addition, the first dam D1 may be disposed between the display area DA and the pad area PA to mainly block the flow of the second encapsulation layer 1372, thereby preventing the second encapsulation layer 1372 from intruding into the pad area PA.

[0347] The second dam D2 may be disposed around the periphery of the first dam D1 and may be disposed side by side to be spaced apart from the first dam D1. The second dam D2 may secondarily block the second encapsulation layer 1372 from flowing toward the periphery of the first dam D1. Therefore, the first dam D1 and the second dam D2 may more effectively block the second encapsulation layer 1372 from being exposed to the outside of the display device 100 or invading the pad area PA.

[0348] At least one dam D1 or D2 may be formed simultaneously with the planarization film 1350 or the bank 1360, and may be formed of the same material as the planarization film 1350 or the bank 1360. In this case, at least one dam D1 or D2 may be formed of an organic material such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, or the like.

[0349] The third touch wiring TL3 may be formed to extend from the encapsulation layer 200 to the upper portion of at least one dam D1 and D2, and may be electrically connected to the connection pattern 1340a disposed therebelow through the contact hole of the second touch interlayer insulating film 1020. Therefore, the third touch wiring TL3 may not be disposed in the bending area BA.

[0350] Reference Fig.13 The bending area BA may include a bending film 1351 on the substrate 111 and a connection pattern 1340a that electrically connects the third touch wiring TL3 extending between the encapsulation layer 200 and the bending film 1351 with the third pad PD3 disposed in the pad area PA. The connection pattern 1340a may be positioned between the substrate 111 and the bending film 1351.

[0351] The third touch wiring TL3 may be electrically connected to the third pad PD3 in the pad area PA through the connection pattern 1340a. Here, the touch driving circuit 160 may be directly or indirectly connected to the third pad PD3.

[0352] The third pad PD3 may be disposed on at least one of the sensor metal layer SML, the bridge metal layer BML, and the jump metal layer JML.

[0353] The connection pattern 1340a may be disposed on a fourth metal layer different from the sensor metal layer SML, the bridge metal layer BML, and the jumper metal layer JML. Here, the transistor included in each of the plurality of sub-pixels SP includes a source electrode, a drain electrode, and a gate electrode, and the fourth metal layer may include at least one of a gate metal layer on which the gate electrode is disposed and a source-drain metal layer on which the source electrode and the drain electrode are disposed.

[0354] For example, the connection pattern 1340a may be a single connection pattern including the same material as the source-drain electrode of the first transistor T1. Alternatively, the connection pattern 1340a may include: a first connection pattern including the same material as the source-drain electrode of the first transistor T1; and a second connection pattern including the same material as the gate line GL or the gate electrode of the first transistor T1. Here, the first connection pattern and the second connection pattern may be respectively disposed above and below the interlayer insulating film 1330, and may be electrically connected through a contact hole of the interlayer insulating film 1330.

[0355] The bending film 1351 may be disposed on a portion of the connection pattern 1340 a .

[0356] The curved film 1351 may be disposed in the curved area BA, between the dams D1 and D2 and the pad PD4, between the dams D1 and D2 and the pad PD3, and to cover the upper portion of a portion of the connection pattern 1340a. The curved film 1351 may prevent and protect the connection pattern 1340a from being exposed to the outside in the curved area BA where the substrate 111 is curved. In addition, the curved film 1351 may be provided with an opening OH, through which the upper portion of the curved film 1351 is exposed. In other words, the opening OH may be formed by removing an inorganic film (e.g., a first encapsulation layer 1371, a third encapsulation layer 1373, and a second touch interlayer insulating film 1020) that may be disposed on the curved film 1351. When the inorganic film is disposed on the curved film 1351, cracks may occur in the inorganic film when the curved area BA is bent, and moisture or the like may penetrate into the inorganic film where cracks occur. Therefore, the inorganic film disposed on the curved film 1351 is removed.

[0357] There may also be a pattern protection film covering a portion of the connection pattern 1340a. The pattern protection film may be disposed to surround an end portion of the connection pattern 1340a. The pattern protection film may protect an end portion of the connection pattern 1340a disposed at an edge of the first non-display area NDA1.

[0358] The curved film 1351 and the pattern protection film may be disposed on the same layer as the planarization film 1350 and may be formed of the same material. For example, the planarization film 1350, the curved film 1351 and the pattern protection film may be formed of an organic film such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, etc.

[0359] In the pad area PA, the third pad PD3 may be electrically connected to the connection pattern 1340 a through a pad contact hole penetrating the first encapsulation layer 1371 , the third encapsulation layer 1373 , and the second touch interlayer insulating film 1020 .

[0360] Next, refer to Fig.14, describes a vertical cross-sectional structure of a portion of the fourth sensor electrode SE4 and a region where the fourth touch wiring TL4 is provided. Fig.13 Description of the same structural features.

[0361] Reference Fig.14 , the mesh-shaped fourth sensor electrode SE4 and the mesh-shaped third sensor electrode SE3 may be provided in the display area DA.

[0362] The mesh fourth sensor electrode SE4 and the mesh third sensor electrode SE3 may be disposed in the sensor metal layer SML to include the sensor metal SM.

[0363] In the display area DA, the mesh-shaped third sensor electrode SE3 may be disposed to extend in the first direction. In the display area DA, the mesh-shaped fourth sensor electrode SE4 may be disposed to extend in the second direction.

[0364] Reference Fig.14 , in the display area DA or the first non-display area NDA1, the fourth touch wiring TL4 electrically connected to the mesh fourth sensor electrode SE4 may be electrically connected to the fourth pad PD4 provided in the pad area PA.

[0365] according to Fig.14 In the example of FIG. 1 , the fourth sensor electrode SE4 may be the nth receiving sensor electrode SE_RXn, the fourth touch wiring TL4 may be the nth receiving touch wiring TL_RXn, and the third sensor electrode SE3 may be the first transmitting sensor electrode SE_TX1 .

[0366] Fig.14 The illustrated fourth sensor electrode SE4 may be a plurality of fourth sub sensor electrodes SUB disposed in the sensor metal layer SML. In the display area DA, the fourth sensor electrode SE4 may be electrically connected to the fourth touch wiring TL4.

[0367] Reference Fig.14 , in the display area DA, the fourth touch wiring TL4 connected to the plurality of fourth sub sensor electrodes SUB provided in the sensor metal layer SML as the first metal layer included in the fourth sensor electrode SE4 may be a fourth lower sub line TL4a provided in the jumper metal layer JML as the third metal layer.

[0368] Reference Fig.14 The fourth lower sub-line TL4 a may be disposed on the encapsulation layer 200 or the touch buffer film 1000 , and may be disposed under the first touch interlayer insulating film 1010 .

[0369] Reference Fig.14In the display area DA, a plurality of fourth sub-sensor electrodes SUB of the fourth sensor electrode SE4 may be electrically connected to the fourth lower sub-line TL4a of the fourth touch wiring TL4 through the contact holes of the first touch interlayer insulating film 1010 and the second touch interlayer insulating film 1020 .

[0370] Reference Fig.14 , the fourth lower sub-line TL4a of the fourth touch wiring TL4 disposed in the display area DA may extend to the first non-display area NDA1.

[0371] The fourth lower sub-line TL4a of the fourth touch wiring TL4 extending to the first non-display area NDA1 may descend along the first inclined surface SLP1 of the encapsulation layer 200 to be electrically connected to the connection pattern 1340b.

[0372] The connection pattern 1340 b may be disposed in the bending area BA and the pad area PA in the first non-display area NDA1 .

[0373] In the first non-display area NDA1, the fourth touch wiring TL4 may be a single-line type or a multi-line type.

[0374] For example, when the fourth touch wiring TL4 is a single line type in the first non-display area NDA1, the fourth touch wiring TL4 may be disposed in the jumper metal layer JML in the first non-display area NDA1.

[0375] For example, in the first non-display area NDA1, when the fourth touch wiring TL4 is a multi-line type, the fourth touch wiring TL4 may include a fourth lower sub-line TL4a and a fourth upper sub-line TL4b electrically connected to each other.

[0376] The fourth lower sub-line TL4 a may be disposed in the jump metal layer JML which is the third metal layer, and the fourth upper sub-line TL4 b may be disposed in the sensor metal layer SML which is the first metal layer.

[0377] On the first inclined surface SLP1 of the encapsulation layer 200 , the fourth lower sub-line TL4 a and the fourth upper sub-line TL4 b constituting the fourth touch wiring TL4 may be electrically connected through at least one contact hole of the first and second touch interlayer insulating films 1010 and 1020 .

[0378] At least one of the fourth lower sub-line TL4a and the fourth upper sub-line TL4b constituting the fourth touch wiring TL4 may be electrically connected to the fourth pad PD4 in the pad area PA through the connection pattern 1340b. Here, the touch driving circuit 160 may be directly or indirectly connected to the fourth pad PD4.

[0379] The fourth pad PD4 may be disposed on at least one of the sensor metal layer SML, the bridge metal layer BML, and the jump metal layer JML.

[0380] The third touch wiring TL3 may be formed to extend from the encapsulation layer 200 to the upper portion of at least one dam D1 and D2, and may be electrically connected to the connection pattern 1340a disposed therebelow through the contact hole of the second touch interlayer insulating film 1020. Therefore, the fourth touch wiring TL4 may not be disposed in the bending area BA.

[0381] Reference Fig.14 The bending area BA may include a bending film 1351 on the substrate 111 and a connection pattern 1340b that electrically connects the fourth touch wiring TL4 extending between the encapsulation layer 200 and the bending film 1351 with the fourth pad PD4 disposed in the pad area PA. The connection pattern 1340b may be positioned between the substrate 111 and the bending film 1351.

[0382] Next, refer to Fig.15 , describes the internal touch routing structure. For this purpose, a vertical cross-sectional structure of a portion of the first sensor electrode SE1 and a region where the first touch wiring TL1 is disposed is described. Fig.13 and 14 Description of the same structural features.

[0383] Reference Fig.15 , a mesh-shaped first sensor electrode SE1 and a mesh-shaped third sensor electrode SE3 may be provided in the display area DA.

[0384] The mesh-shaped first sensor electrode SE1 and the mesh-shaped third sensor electrode SE3 may be disposed in the sensor metal layer SML to include the sensor metal SM.

[0385] In the display area DA, the mesh-shaped third sensor electrode SE3 may be disposed to extend in the first direction. In the display area DA, the mesh-shaped first sensor electrode SE1 may be disposed to extend in the second direction.

[0386] Reference Fig.15 , in the display area DA, the first touch wiring TL1 electrically connected to the mesh-shaped first sensor electrode SE1 may be disposed to extend along the first direction.

[0387] The first touch wiring TL1 may be arranged to extend through the display area DA in the first direction to the first non-display area NDA1 without passing through the second non-display area NDA2 positioned outside the display area DA in the second direction and the fourth non-display area NDA4 positioned outside the display area DA in the direction opposite to the second direction. Therefore, the size of the second non-display area NDA2 as the right frame area and the size of the fourth non-display area NDA4 as the left frame area may be significantly reduced.

[0388] The first touch wiring TL1 may extend to the first non-display area NDA1 and may be electrically connected to the first pad PD1 in the pad area PA provided in the first non-display area NDA1.

[0389] according to Fig.15 In the example of FIG. 1 , the first sensor electrode SE1 may be the first receiving sensor electrode SE_RX1 , the first touch wiring TL1 may be the first receiving touch wiring TL_RX1 , and the third sensor electrode SE3 may be the first transmitting sensor electrode SE_TX1 .

[0390] Fig.15 The illustrated first sensor electrode SE1 may be a plurality of first sub sensor electrodes SUB disposed in the sensor metal layer SML. In the display area DA, the first sensor electrode SE1 may be electrically connected to the first touch wiring TL1.

[0391] Reference Fig.15 , in the display area DA, the first touch wiring TL1 connected to the plurality of first sub sensor electrodes SUB provided in the sensor metal layer SML as the first metal layer included in the first sensor electrode SE1 may be a first wire provided in the jumper metal layer JML as the third metal layer.

[0392] The first touch wiring TL1 may be connected to Fig.14 The fourth touch wiring TL4 shown is configured and arranged in the same manner.

[0393] The first touch wiring TL1 may be a single-line type or a multi-line type.

[0394] For example, when the first touch wiring TL1 is a single line type, the first touch wiring TL1 may be disposed in the jumper metal layer JML.

[0395] For example, when the first touch wiring TL1 is a multi-line type, the first touch wiring TL1 may include a first line and a first upper sub-line electrically connected to each other. The first line may be disposed in a jumper metal layer JML as a third metal layer, and the first upper sub-line may be disposed in a sensor metal layer SML as a first metal layer.

[0396] In the first non-display area NDA1, the first touch wiring TL1 may be electrically connected to the first pad PD1 provided in the pad area PA through a connection pattern.

[0397] like Fig.15 As shown, according to the internal touch routing structure according to the embodiment of the present disclosure, the touch wiring is not provided in the second non-display area NDA2 (e.g., the right periphery of the display area DA) positioned outside the display area DA along the second direction and the fourth non-display area NDA4 (e.g., the left periphery of the display area DA) positioned outside the display area DA along the direction opposite to the second direction. Therefore, the size of the second non-display area NDA2 as the right frame area and the size of the fourth non-display area NDA4 as the left frame area can be significantly reduced.

[0398] Fig.16 is a plan view of a display panel 110 according to an embodiment of the present disclosure, and Figures 17 to 19 yes Fig.16 1 is a cross-sectional view of key points of the display panel 110.

[0399] Fig.16 is shown with Fig.12 Plan views of different embodiments of the present invention, and Figures 17 to 19 is shown with Figures 13 to 15 Embodiments of the present invention are cross-sectional views of different embodiments.

[0400] Reference Fig.16 , n or more receiving touch wirings TL_RX1 to TL_RXn may extend across the display area DA in the first direction to the pad area PA in the first non-display area NDA1 without passing through the second and fourth non-display areas NDA2 and NDA4.

[0401] Reference Fig.16 ,and Fig.12 Differently, some contact holes CNT connecting n or more receiving touch wirings TL_RX1 to TL_RXn and n receiving sensor electrodes SE_RX1 to SE_RXn may be positioned outside the first transmitting sensor electrode SE_TX1 disposed at the outermost edge among the m transmitting sensor electrodes SE_TX1 to SE_TXm. However, other contact holes CNT connecting n or more receiving touch wirings TL_RX1 to TL_RXn and n receiving sensor electrodes SE_RX1 to SE_RXn may be positioned inside the first transmitting sensor electrode SE_TX1 disposed at the outermost edge among the m transmitting sensor electrodes SE_TX1 to SE_TXm. For example, Fig.16As shown, the contact hole connecting the first receiving touch wiring TL_RX1 and the first receiving sensor electrode SE_RX1 can be positioned from the first transmitting sensor electrode SE_TX1 toward NDA4. Similarly, the contact hole connecting the second receiving touch wiring TL_RX2 and the second receiving sensor electrode SE_RX2 can be positioned from the first transmitting sensor electrode SE_TX1 toward NDA4. However, the contact hole connecting the nth receiving touch wiring TL_RXn and the nth receiving sensor electrode SE_RXn can be positioned from the first transmitting sensor electrode SE_TX1 toward NDA2.

[0402] Therefore, if Fig.16 As shown, at least some of the n or more receiving touch wirings TL_RX1 to TL_RXn may be arranged to extend to the pad area PA through the first touch wiring area TRA1 in the first non-display area NDA1. Fig.16 As shown, the nth receiving touch wiring TL_RXn may be arranged to extend to the pad area PA through the first touch wiring area TRA1 in the first non-display area NDA1. In addition, in the first touch wiring area TRA1 in the first non-display area NDA1, one or more of the receiving touch wirings TL_RX may overlap with one or more of the transmitting touch wirings TL_TX.

[0403] In the first non-display area NDA1, at least some of the n or more receiving touch wirings TL_RX1 to TL_RXn may overlap with the m or more transmitting touch wirings TL_TX1 to TL_TXm disposed in the first touch wiring area TRA1. Fig.16 As shown, the nth receiving touch wiring TL_RXn may overlap the first transmitting touch wiring TL_TX1.

[0404] Therefore, in the first non-display area NDA1 , noise (eg, parasitic capacitance) may occur between the reception touch wiring TL_RX and the transmission touch wiring TL_TX overlapping each other.

[0405] In the display panel 110 according to an embodiment of the present disclosure, in order to reduce the noise between the receiving touch wiring TL_RX and the sending touch wiring TL_TX overlapping each other, the first touch interlayer insulating film 101 positioned between the receiving touch wiring (the sub-line set in the jumping metal layer JML) and the sending touch wiring (the sub-line set in the bridge metal layer BML) in the first non-display area NDA1 can be configured as an insulating film for removing noise.

[0406] Therefore, the first touch interlayer insulating film 1010 may include an organic film.

[0407] For example, the first touch interlayer insulating film 1010 may be formed of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, or titanium oxide.

[0408] Fig.17 The vertical cross-section structure shown is Fig.13 The vertical cross-section shown is identical in structure. However, Fig.17 The first touch interlayer insulating film 1010 shown is formed of an organic film, and Fig.13 The illustrated first touch interlayer insulating film 1010 is formed of an inorganic film.

[0409] Fig.18 The vertical cross-section structure shown is Fig.14 The vertical cross-section shown is identical in structure. However, Fig.18 The first touch interlayer insulating film 1010 shown is formed of an organic film, and Fig.14 The illustrated first touch interlayer insulating film 1010 is formed of an inorganic film.

[0410] Fig.19 The vertical cross-section structure shown is Fig.15 The vertical cross-section shown is identical in structure. However, Fig.19 The first touch interlayer insulating film 1010 shown is formed of an organic film, and Fig.15 The illustrated first touch interlayer insulating film 1010 is formed of an inorganic film.

[0411] Reference Fig.18 , in the first non-display area NDA1, the third lower sub-line TL3a of the third touch wiring TL3 as the first transmission touch wiring TL_TX1 may exist between the fourth lower sub-line TL4a and the fourth upper sub-line TL4b constituting the fourth touch wiring TL4.

[0412] In other words, in the first non-display area NDA1, at least one of the fourth lower sub-line TL4a and the fourth upper sub-line TL4b constituting the fourth touch wiring TL4 may overlap the third lower sub-line TL3a of the third touch wiring TL3 as the first transmission touch wiring TL_TX1.

[0413] In other words, in the first non-display area NDA1 , the fourth touch wiring TL4 as the nth receiving touch wiring TL_RXn and the third touch wiring TL3 as the first transmitting touch wiring TL_TX1 may overlap each other.

[0414] However, in the first non-display area NDA1, the first touch interlayer insulating film 101 positioned between the fourth touch wiring TL4 as the nth receiving touch wiring TL_RXn and the third touch wiring TL3 as the first sending touch wiring TL_TX1 is configured as an insulating film for noise removal, and thus the noise between the fourth touch wiring TL4 as the nth receiving touch wiring TL_RXn and the first sending touch wiring TL_TX1 can be reduced.

[0415] Fig. 20 A touch driving circuit according to an embodiment of the present disclosure is shown.

[0416] Reference Fig. 20 According to an embodiment of the present disclosure, the touch driving circuit 160 may include: a driving unit 2010, which is configured to output a touch driving signal TDS with a changed voltage level to at least one of a plurality of transmitting pads PD_TX; and a sensing unit 2020, which is configured to sense at least one of a plurality of receiving pads PD_RX.

[0417] For example, the driving unit 2010 may include an output buffer including an amplifier and the like.

[0418] For example, the sensing unit 2020 may include: at least one charge amplifier including an operational amplifier and a feedback capacitor; and an analog-to-digital converter. For example, the sensing unit 2020 may also include at least one integrator for integrating an output signal of the at least one charge amplifier.

[0419] For example, the sensing unit 2020 may further include a first selection circuit for selecting at least one of the plurality of transmission pads PD_TX. The first selection circuit may include a switch circuit, a multiplexer circuit, and the like.

[0420] For example, the sensing unit 2020 may further include: a sampling and holding circuit for storing a plurality of integrated values ​​output from a plurality of integrators; and a second selection circuit for selecting at least one of the plurality of integrated values ​​stored in the sampling and holding circuit and providing the selected integrated value to the analog-to-digital converter. The second selection circuit may include a switch circuit, a multiplexer circuit, etc.

[0421] The touch driving circuit 160 may further include a signal generator for generating the touch driving signal TDS.

[0422] Fig.21 A substrate 111 and an encapsulation layer 200 of a display panel 110 according to an embodiment of the present disclosure are shown.

[0423] Reference Fig.21The non-display area NDA may include: a first non-display area NDA1 positioned in a first direction relative to the display area DA; a second non-display area NDA2 positioned in a second direction relative to the display area DA; a third non-display area NDA3 positioned in a direction opposite to the first direction relative to the display area DA; and a fourth non-display area NDA4 positioned in a direction opposite to the second direction relative to the display area DA.

[0424] Reference Fig.21 , the encapsulation layer 200 may be disposed in the display area DA, and may extend to a partial area of ​​the non-display area NDA.

[0425] Reference Fig.21 The encapsulation layer 200 may include: a first inclined surface SLP1 positioned outside in a first direction relative to the center; a second inclined surface SPL2 positioned outside in a second direction intersecting the first direction relative to the center; a third inclined surface SPP3 positioned outside in a direction opposite to the first direction relative to the center; and a fourth inclined surface SLP4 positioned outside in a direction opposite to the second direction relative to the center.

[0426] Reference Fig.21 , the first to fourth inclined surfaces SLP1 , SLP2 , SLP3 , and SLP4 of the encapsulation layer 200 may be positioned in the non-display area NDA.

[0427] Reference Fig.21 In the first inclined surface SLP1, the second inclined surface SLP2, the third inclined surface SLP3 and the fourth inclined surface SLP4 of the encapsulation layer 200, metal (e.g., touch wiring) may not be provided on the second inclined surface SLP2 and the fourth inclined surface SLP4, and the touch wiring TL provided to extend along the first direction may pass on the first inclined surface SLP1 (arranged on the first inclined surface SLP1).

[0428] For example, the first touch wiring TL1 may not be disposed on the second and fourth inclined surfaces SLP2 and SLP4 but may descend along the first inclined surface SLP1 to be electrically connected to the second pad PD2 in the pad area PA.

[0429] The following briefly describes the implementation of the above disclosure.

[0430] A display device according to an embodiment of the present disclosure may include: a substrate including a display area in which a plurality of sub-pixels are provided and a non-display area including a pad area positioned in a first direction relative to the display area; a first sensor electrode, which is provided in the display area and includes a plurality of first sub-sensor electrodes arranged along a second direction intersecting the first direction and at least one first bridge electrically connecting the plurality of first sub-sensor electrodes; a first pad, which is provided in the pad area; and a first touch wiring, which electrically connects at least one of the plurality of first sub-sensor electrodes and the first pad.

[0431] The plurality of first sub sensor electrodes may be disposed in a first metal layer. The first bridge may be disposed in a second metal layer different from the first metal layer.

[0432] The first touch wiring may include a metal extending in the first direction in the display area, electrically connected to the first pad, and disposed in a third metal layer different from the first metal layer and the second metal layer.

[0433] The first touch wiring may be a single-line type or a multi-line type.

[0434] For example, when the first touch wiring is a single line type, the first touch wiring may include a metal provided in the third metal layer.

[0435] For example, when the first touch wiring is a multi-line type, the first touch wiring may include a first sub-line disposed in the third metal layer and a first upper sub-line disposed in the first metal layer. Here, the first sub-line and the first upper sub-line may be electrically connected to each other.

[0436] The display device according to an embodiment of the present disclosure may further include: a second sensor electrode, which is arranged in the display area and includes a plurality of second sub-sensor electrodes arranged along a second direction and at least one second bridge electrically connecting the plurality of second sub-sensor electrodes; a second pad, which is arranged in the pad area; and a second touch wiring, which electrically connects at least one of the plurality of second sub-sensor electrodes and the second pad.

[0437] The second sensor electrode may be disposed closer to the pad area than the first sensor electrode.

[0438] The plurality of second sub sensor electrodes may be disposed in the first metal layer. The second bridge may be disposed in the second metal layer.

[0439] The second touch wiring may include a metal disposed across the display area in the first direction, electrically connected to the second pad, and disposed in the third metal layer.

[0440] The first touch wiring may overlap at least one of the plurality of second sub sensor electrodes.

[0441] The display device according to an embodiment of the present disclosure may further include: a third sensor electrode, which is arranged in the first direction to pass between two adjacent first sub-sensor electrodes among the plurality of first sub-sensor electrodes; a third pad, which is arranged in the pad area; and a third touch wiring, which electrically connects the third sensor electrode and the third pad.

[0442] The third sensor electrode may overlap the first bridge.

[0443] The third touch wiring may include a metal disposed in a different metal layer from the first touch wiring. For example, the third touch wiring may include a metal disposed in a second metal layer.

[0444] The third touch wiring may be a single-line type or a multi-line type.

[0445] For example, when the third touch wiring is a single line type, the third touch wiring may include a metal provided in the second metal layer.

[0446] For example, when the third touch wiring is a multi-line type, the third touch wiring may include a third lower sub-line disposed in the second metal layer and a third upper sub-line disposed in the first metal layer. Here, the third lower sub-line and the third upper sub-line may be electrically connected to each other.

[0447] The third sensor electrode may overlap the first touch wiring.

[0448] The display device according to an embodiment of the present disclosure may further include a circuit (which may include a touch driving circuit) connected to the pad area and configured to supply a signal whose voltage level varies to the first sensor electrode or the third sensor electrode.

[0449] In a display device according to an embodiment of the present disclosure, the non-display area may include: a first non-display area positioned in a first direction relative to the display area; a second non-display area positioned in a second direction relative to the display area; a third non-display area positioned in a direction opposite to the first direction relative to the display area; and a fourth non-display area positioned in a direction opposite to the second direction relative to the display area.

[0450] The pad area may be included in the first non-display area.

[0451] The first touch wiring may extend across the display area to the first non-display area without passing through the second non-display area and the fourth non-display area.

[0452] The display device according to an embodiment of the present disclosure may further include a ground line disposed in the non-display area.

[0453] The ground line may be provided from one point of the pad area to another point of the pad area via the second non-display area, the third non-display area, and the fourth non-display area.

[0454] The first non-display area may include a bent area between the display area and the pad area.

[0455] The bending region may include: a bending film on the substrate; and a connection pattern positioned between the substrate and the bending film. The connection pattern may electrically connect the first touch wiring and the first pad.

[0456] The first pad may be disposed on at least one of the first metal layer, the second metal layer, and the third metal layer.

[0457] The connection pattern may be disposed on a fourth metal layer different from the first metal layer, the second metal layer, and the third metal layer.

[0458] For example, when each of the multiple sub-pixels includes a transistor including a source electrode, a drain electrode, and a gate electrode, the fourth metal layer provided with a connection pattern may include at least one of a gate metal layer having a gate electrode provided thereon and a source-drain metal layer having a source electrode and a drain electrode provided thereon.

[0459] The display device according to an embodiment of the present disclosure may further include: a light emitting element; an encapsulation layer on the light emitting element; a first touch interlayer insulating film on the encapsulation layer; a second touch interlayer insulating film on the first touch interlayer insulating film; and a touch protection film on the second touch interlayer insulating film.

[0460] The third metal layer may be disposed between the encapsulation layer and the first touch interlayer insulating film.

[0461] The second metal layer may be disposed between the first touch interlayer insulating film and the second touch interlayer insulating film.

[0462] The first metal layer may be disposed between the second touch interlayer insulating film and the touch protection film.

[0463] The display device according to an embodiment of the present disclosure may further include a touch buffer film between the encapsulation layer and the first touch interlayer insulating film.

[0464] For example, the second touch interlayer insulating film may include an organic film.

[0465] For example, the first touch interlayer insulating film may include an inorganic film.

[0466] As another example, the first touch interlayer insulating film may include an organic layer.

[0467] The encapsulation layer included in the display device according to an embodiment of the present disclosure may include: a first inclined surface positioned outside in a first direction relative to a center; a second inclined surface positioned outside in a second direction intersecting the first direction relative to the center; a third inclined surface positioned outside in a direction opposite to the first direction relative to the center; and a fourth inclined surface positioned outside in a direction opposite to the second direction relative to the center.

[0468] The first touch wiring may not be disposed on the second and fourth inclined surfaces, but may descend along the first inclined surface and be electrically connected to the first pad positioned outside the first inclined surface.

[0469] Each of the plurality of first sub sensor electrodes may be disposed in the first metal layer, and may include a mesh sensor metal having an opening.

[0470] The first bridge may be disposed in the second metal layer while avoiding at least one of the openings.

[0471] The first touch wiring may be disposed in the third metal layer while avoiding at least one of the openings.

[0472] A display panel according to an embodiment of the present disclosure may include: a substrate including a display area provided with a plurality of sub-pixels and a non-display area including a pad area positioned in a first direction relative to the display area; a first touch interlayer insulating film on the substrate; a second touch interlayer insulating film on the first touch interlayer insulating film; a touch protection film on the second touch interlayer insulating film; a first metal layer between the second touch interlayer insulating film and the touch protection film; a second metal layer between the first touch interlayer insulating film and the second touch interlayer insulating film; a third metal layer on the substrate and the first touch interlayer insulating film; a first sensor electrode including a plurality of first sub-sensor electrodes arranged in the first metal layer and a first bridge arranged in the second metal layer to electrically connect the plurality of first sub-sensor electrodes; and a first touch wiring electrically connected to the first sensor electrode, including a metal arranged in the third metal layer, and extending along the first direction in the display area.

[0473] The display panel according to an embodiment of the present disclosure may further include: a second sensor electrode, the second sensor electrode including a plurality of second sub-sensor electrodes arranged in the first metal layer and a second bridge arranged in the second metal layer to electrically connect the plurality of second sub-sensor electrodes; and a second touch wiring electrically connected to the second sensor electrode, including a metal arranged in a third metal layer, and extending along the first direction in the display area.

[0474] According to the internal touch routing structure, the first touch wiring may overlap the plurality of second sub sensor electrodes.

[0475] The display panel according to an embodiment of the present disclosure may further include: a third sensor electrode, which is arranged in the first metal layer; a third touch wiring, which is electrically connected to the third sensor electrode and includes a metal arranged in a second metal layer different from the third metal layer; a fourth sensor electrode, which includes a plurality of fourth sub-sensor electrodes arranged in the first metal layer and a second bridge arranged in the second metal layer to electrically connect the plurality of fourth sub-sensor electrodes; and a fourth touch wiring, which is electrically connected to the fourth sensor electrode, includes a metal arranged in the third metal layer, and extends along the first direction in the display area.

[0476] The first sensor electrode, the second sensor electrode, and the fourth sensor electrode may cross the third sensor electrode.

[0477] For example, the first sensor electrode, the second sensor electrode, and the fourth sensor electrode may be receiving sensor electrodes, and the third sensor electrode may be a transmitting sensor electrode.

[0478] As another example, the first sensor electrode, the second sensor electrode, and the fourth sensor electrode may be transmitting sensor electrodes, and the third sensor electrode may be a receiving sensor electrode.

[0479] The display panel according to an embodiment of the present disclosure may further include: a first contact hole connecting the first sensor electrode and the first touch wiring; and a second contact hole connecting the fourth sensor electrode and the fourth touch wiring.

[0480] For example, both the first contact hole and the second contact hole may be positioned on one side of the third sensor electrode, and the first touch interlayer insulating film may include an inorganic film.

[0481] In this case, the third touch wiring and the fourth touch wiring may not overlap.

[0482] As another example, the first contact hole may be positioned on one side of the third sensor electrode, the second contact hole may be positioned on the other side of the third sensor electrode, and the first touch interlayer insulating film may include an organic film.

[0483] In this case, the third touch wiring and the fourth touch wiring may overlap.

[0484] A display device according to an embodiment of the present disclosure includes: a substrate including a display area including a plurality of sub-pixels and a non-display area including a pad area arranged in an area in a first direction relative to the display area; a first sensor electrode, the first sensor electrode is arranged in the display area and includes a plurality of first sub-sensor electrodes arranged along a second direction intersecting the first direction and at least one first bridge electrically connecting the plurality of first sub-sensor electrodes; a first pad, the first pad is arranged in the pad area; and a first touch wiring, the first touch wiring electrically connecting at least one of the plurality of first sub-sensor electrodes to the first pad.

[0485] The multiple first sub-sensor electrodes are arranged in a first metal layer, the first bridge is arranged in a second metal layer different from the first metal layer, and the first touch wiring extends along a first direction in the display area to be electrically connected to the first pad, and the first touch wiring is arranged in a third metal layer different from the first metal layer and the second metal layer.

[0486] The first touch wiring has a single-line type and includes a metal set in a third metal layer, or the first touch wiring has a multi-line type and includes a first sub-line set in the third metal layer and a first upper sub-line set in the first metal layer, and the first sub-line and the first upper sub-line are electrically connected to each other.

[0487] The display device may also include: a second sensor electrode, which is arranged in the display area and includes a plurality of second sub-sensor electrodes arranged along a second direction and at least one second bridge electrically connecting the plurality of second sub-sensor electrodes; a second pad, which is arranged in the pad area; and a second touch wiring, which electrically connects at least one of the plurality of second sub-sensor electrodes to the second pad.

[0488] The second sensor electrode is arranged closer to the pad area than the first sensor electrode, the multiple second sub-sensor electrodes are arranged in the first metal layer, the second bridge is arranged in the second metal layer, the second touch wiring extends across the display area in a first direction to be electrically connected to the second pad, and the second touch wiring is arranged in the third metal layer, and the first touch wiring overlaps at least one of the multiple second sub-sensor electrodes.

[0489] The display device may also include: a third sensor electrode, which extends in the first direction and passes between two adjacent first sub-sensor electrodes among the plurality of first sub-sensor electrodes; a third pad, which is disposed in the pad area; and a third touch wiring, which electrically connects the third sensor electrode to the third pad.

[0490] The third sensor electrode overlaps the first bridge.

[0491] The third touch wiring has a single-line type and includes a metal set in the second metal layer, or the third touch wiring has a multi-line type and includes a third lower sub-line set in the second metal layer and a third upper sub-line set in the first metal layer, and the third lower sub-line and the third upper sub-line are electrically connected to each other.

[0492] The third sensor electrode overlaps the first touch wiring.

[0493] The non-display area includes: a first non-display area positioned in a first direction relative to the display area; a second non-display area positioned in a second direction relative to the display area; a third non-display area positioned in a direction opposite to the first direction relative to the display area; and a fourth non-display area positioned in a direction opposite to the second direction relative to the display area.

[0494] The pad area is included in the first non-display area, and the first touch wiring extends from the display area to the first non-display area without passing through the second non-display area and the fourth non-display area.

[0495] The first non-display area includes a curved area between the display area and the pad area. The curved area includes: a curved film disposed on the substrate; and a connection pattern positioned between the substrate and the curved film to electrically connect the first touch wiring and the first pad.

[0496] The first pad is disposed on at least one of the first metal layer, the second metal layer, and the third metal layer, and the connection pattern is disposed on a fourth metal layer different from the first metal layer, the second metal layer, and the third metal layer.

[0497] Each of the multiple sub-pixels includes a transistor, the transistor includes a source electrode, a drain electrode and a gate electrode, the fourth metal layer includes at least one of a gate metal layer and a source-drain metal layer, and a gate electrode is arranged in the gate metal layer, and a source electrode and a drain electrode are arranged in the source-drain metal layer.

[0498] The display device may further include: a light emitting element; an encapsulation layer disposed on the light emitting element; a first touch interlayer insulating film disposed on the encapsulation layer; a second touch interlayer insulating film disposed on the first touch interlayer insulating film; and a touch protection film disposed on the second touch interlayer insulating film.

[0499] The third metal layer is disposed between the encapsulation layer and the first touch interlayer insulating film, the second metal layer is disposed between the first touch interlayer insulating film and the second touch interlayer insulating film, and the first metal layer is disposed between the second touch interlayer insulating film and the touch protection film.

[0500] The display device further includes a touch buffer film between the encapsulation layer and the first touch interlayer insulating film.

[0501] The second touch interlayer insulating film includes an organic film.

[0502] The first touch interlayer insulating film includes an inorganic film or an organic film.

[0503] A display panel according to an embodiment of the present disclosure includes: a substrate, the substrate including a display area having a plurality of sub-pixels and a non-display area including a pad area positioned in a first direction relative to the display area; a first touch interlayer insulating film arranged on the substrate; a second touch interlayer insulating film arranged on the first touch interlayer insulating film; a touch protection film arranged on the second touch interlayer insulating film; a first metal layer arranged between the second touch interlayer insulating film and the touch protection film; a second metal layer arranged between the first touch interlayer insulating film and the second touch interlayer insulating film; a third metal layer arranged on the substrate and the first touch interlayer insulating film; a first sensor electrode, the first sensor electrode including a plurality of first sub-sensor electrodes arranged in the first metal layer and a first bridge arranged in the second metal layer to electrically connect the plurality of first sub-sensor electrodes; and a first touch wiring, the first touch wiring being electrically connected to the first sensor electrode, the first touch wiring including a metal arranged in the third metal layer and extending along the first direction in the display area.

[0504] The display panel may also include: a second sensor electrode, the second sensor electrode including a plurality of second sub-sensor electrodes arranged in the first metal layer and a second bridge arranged in the second metal layer to electrically connect the plurality of second sub-sensor electrodes; and a second touch wiring, the second touch wiring electrically connected to the second sensor electrode, the second touch wiring including a metal arranged in a third metal layer and extending along a first direction in the display area, wherein the first touch wiring overlaps with one or more of the plurality of second sub-sensor electrodes.

[0505] The display panel may also include: a third sensor electrode, which is arranged in the first metal layer; a third touch wiring, which is electrically connected to the third sensor electrode and includes a metal arranged in a second metal layer different from the third metal layer; a fourth sensor electrode, which includes a plurality of fourth sub-sensor electrodes arranged in the first metal layer and a second bridge arranged in the second metal layer to electrically connect the plurality of fourth sub-sensor electrodes; and a fourth touch wiring, which is electrically connected to the fourth sensor electrode, and the fourth touch wiring includes a metal arranged in the third metal layer and extends along the first direction in the display area.

[0506] The display panel may further include: a first contact hole connecting the first sensor electrode with the first touch wiring; and a second contact hole connecting the fourth sensor electrode with the fourth touch wiring.

[0507] Both the first contact hole and the second contact hole are positioned on one side of the third sensor electrode, and the first touch interlayer insulating film includes an inorganic film.

[0508] The display panel may further include: a first contact hole connecting the first sensor electrode with the first touch wiring; and a second contact hole connecting the fourth sensor electrode with the fourth touch wiring.

[0509] The first contact hole is disposed on one side of the third sensor electrode, the second contact hole is disposed on the other side of the third sensor electrode, and the first touch interlayer insulating film includes an organic film.

[0510] The third touch wiring overlaps the fourth touch wiring.

[0511] A display device comprises: a display area including a plurality of sub-pixels and a non-display area separated from the display area; a plurality of first sensor electrodes arranged in the display area; a plurality of second sensor electrodes arranged in the display area; a plurality of first pads arranged in the non-display area; a plurality of second pads arranged in the non-display area; a plurality of first touch wirings electrically connecting the plurality of first sensor electrodes to the plurality of first pads; and a plurality of second touch wirings electrically connecting the plurality of second sensor electrodes to the plurality of second pads.

[0512] One of the plurality of first touch wirings electrically connected to at least one of the plurality of first sensor electrodes overlaps another of the plurality of first sensor electrodes electrically connected to another of the plurality of first touch wirings.

[0513] At least one first touch wiring among the plurality of first touch wirings overlaps at least one second touch wiring among the plurality of second touch wirings in the non-display area.

[0514] The non-display area includes: a first frame area, the first frame area is arranged to be adjacent to a first side of the display area; a second frame area, the second frame area is arranged to be adjacent to a second side of the display area; a third frame area, the third frame area is arranged to be adjacent to a third side of the display area; and a fourth frame area, the fourth frame area is arranged to be adjacent to a fourth side of the display area.

[0515] The plurality of first touch wirings and the plurality of second touch wirings pass through the display area and the first frame area, but do not pass through the second frame area, the third frame area, and the fourth frame area.

[0516] The plurality of first pads and the plurality of second pads are disposed only in the first bezel region.

[0517] At least one of the plurality of first sensor electrodes is arranged farther from the first bezel area than another one of the plurality of first sensor electrodes.

[0518] The number of the plurality of first touch wirings electrically connected to the at least one of the plurality of first sensor electrodes is greater than the number of the plurality of first touch wirings electrically connected to the other one of the plurality of first sensor electrodes.

[0519] At least one of the plurality of first touch wirings includes a lower sub-line and an upper sub-line, and at least one of the plurality of second touch wirings overlaps the lower sub-line and the upper sub-line.

[0520] The display device may further include a touch interlayer insulating film disposed between the at least one of the plurality of second touch wirings and one of the lower sub-line and the upper sub-line.

[0521] The touch interlayer insulating film includes an organic film.

[0522] The plurality of first sensor electrodes and the plurality of second sensor electrodes include a mesh sensor metal including a plurality of openings corresponding to light emitting regions of some of the plurality of sub-pixels, and the plurality of first touch wirings and the plurality of second touch wirings do not overlap the openings in the mesh sensor metal.

[0523] According to an embodiment of the present disclosure, a display device and a display panel having a touch sensor structure allowing a narrow frame may be provided.

[0524] According to an embodiment of the present disclosure, a display device and a display panel including a touch sensor that can provide high touch sensitivity while having a narrow bezel can be provided.

[0525] According to an embodiment of the present disclosure, a display device and a display panel including a touch sensor that can reduce noise between sensor electrodes can be provided.

[0526] According to an embodiment of the present disclosure, a display device and a display panel having a touch sensor stack structure suitable for reducing a frame size and increasing touch sensitivity may be provided.

[0527] According to an embodiment of the present disclosure, as the frame size is significantly reduced, the use of materials corresponding to the reduced frame size can be reduced. This can help reduce the weight of the display device.

[0528] The above embodiments are merely examples, and those skilled in the art will appreciate that various changes may be made thereto without departing from the scope of the present disclosure. Therefore, the embodiments described herein are provided for illustrative purposes only, rather than to limit the scope of the present disclosure, and it will be appreciated that the scope of the present disclosure is not limited by the embodiments.

Claims

1. A display device, comprising: A substrate including a display area provided with a plurality of sub-pixels and a non-display area including a pad area located in a first direction relative to the display area; a first sensor electrode disposed in the display area and including a plurality of first sub-sensor electrodes arranged in a second direction crossing the first direction and at least one first bridge electrically connecting the plurality of first sub-sensor electrodes; a first pad, the first pad being disposed in the pad region; as well as a first touch wiring electrically connecting at least one of the plurality of first sub-sensor electrodes and the first pad, wherein the plurality of first sub-sensor electrodes are arranged in the first metal layer, wherein the first bridge is arranged in a second metal layer different from the first metal layer, and The first touch wiring includes a metal extending along the first direction in the display area, electrically connected to the first pad, and disposed in a third metal layer different from the first metal layer and the second metal layer.

2. The display device according to claim 1, wherein: The first touch wiring has a single-line type or a multi-line type, Wherein, when the first touch wiring has the single-line type, the first touch wiring includes a metal provided in the third metal layer, and When the first touch wiring has the multi-line type, the first touch wiring includes a first sub-line disposed in the third metal layer and a first upper sub-line disposed in the first metal layer, and the first lower sub-line and the first upper sub-line are electrically connected to each other.

3. The display device according to claim 1 , wherein: The first touch wiring is electrically connected to two opposite ends of the first sensor electrode.

4. The display device according to one of claims 1 and 2, further comprising: a second sensor electrode disposed in the display area and including a plurality of second sub-sensor electrodes arranged along the second direction and at least one second bridge electrically connecting the plurality of second sub-sensor electrodes; a second pad, the second pad being disposed in the pad region; as well as a second touch wiring electrically connecting at least one of the plurality of second sub-sensor electrodes and the second pad, wherein the second sensor electrode is disposed closer to the pad area than the first sensor electrode, wherein the plurality of second sub-sensor electrodes are arranged in the first metal layer, Wherein, the second bridge is arranged in the second metal layer, The second touch wiring includes a metal arranged across the display area in the first direction, electrically connected to the second pad, and arranged in the third metal layer, and The first touch wiring overlaps with at least one of the plurality of second sub-sensor electrodes.

5. The display device according to one of claims 1 and 2, further comprising: a third sensor electrode disposed in the first direction to pass between two adjacent first sub-sensor electrodes among the plurality of first sub-sensor electrodes; a third pad, the third pad being arranged in the pad region; as well as a third touch wiring electrically connecting the third sensor electrode and the third pad, Wherein, the third sensor electrode overlaps with the first bridge.

6. The display device according to claim 5, wherein: The third touch wiring has a single-line type or a multi-line type, Wherein, when the third touch wiring has a single-line type, the third touch wiring includes a metal provided in the second metal layer, and When the third touch wiring has a multi-line type, the third touch wiring includes a third lower sub-line disposed in the second metal layer and a third upper sub-line disposed in the first metal layer, and the third lower sub-line and the third upper sub-line are electrically connected to each other.

7. The display device according to claim 5, wherein: The third sensor electrode overlaps the first touch wiring.

8. The display device according to one of claims 1, 2, 6 and 7, wherein: Each of the first sub sensor electrodes is formed of a mesh metal having an opening corresponding to a light emitting region of a sub pixel.

9. The display device according to claim 8, wherein: At least one of the first bridge and the first wiring is disposed to avoid the opening.

10. The display device according to one of claims 1 and 2, wherein: The non-display area includes: a first non-display area positioned in the first direction relative to the display area; a second non-display area positioned relative to the display area in the second direction; a third non-display area located in a direction opposite to the first direction with respect to the display area; and a fourth non-display area located in a direction opposite to the second direction with respect to the display area, wherein the pad area is included in the first non-display area, and The first touch wiring extends across the display area to the first non-display area without passing through the second non-display area and the fourth non-display area.

11. The display device according to claim 10, wherein: The first non-display area includes a bending area between the display area and the pad area, wherein the bending area includes: a curved film on a substrate; and a connection pattern positioned between the substrate and the curved film to electrically connect the first touch wiring and the first pad, wherein the first pad is disposed on at least one of the first metal layer, the second metal layer and the third metal layer, and Wherein, the connection pattern is arranged on a fourth metal layer different from the first metal layer, the second metal layer and the third metal layer.

12. The display device according to claim 11, wherein: Each of the plurality of sub-pixels includes a transistor including a source electrode, a drain electrode, and a gate electrode, and The fourth metal layer includes at least one of a gate metal layer on which the gate electrode is disposed and a source-drain metal layer on which the source electrode and the drain electrode are disposed.

13. The display device according to one of claims 1 and 2, further comprising: Light emitting element; An encapsulation layer on the light-emitting element; a first touch interlayer insulating film on the encapsulation layer; a second touch interlayer insulating film on the first touch interlayer insulating film; as well as The touch protection film on the second touch interlayer insulating film, The third metal layer is disposed between the encapsulation layer and the first touch interlayer insulating film. The second metal layer is disposed between the first touch interlayer insulating film and the second touch interlayer insulating film, and Wherein, the first metal layer is arranged between the second touch interlayer insulating film and the touch protection film. 14 . The display device according to claim 13 , further comprising a touch buffer film between the encapsulation layer and the first touch interlayer insulating film.

15. The display device according to claim 13, wherein: The second touch interlayer insulating film includes an organic film.

16. The display device according to claim 13, wherein: The first touch interlayer insulating film includes an inorganic film.

17. The display device according to claim 13, wherein: The first touch interlayer insulating film includes an organic film.

18. A display panel, comprising: A substrate including a display area provided with a plurality of sub-pixels and a non-display area including a pad area located in a first direction relative to the display area; a first touch interlayer insulating film on the substrate; a second touch interlayer insulating film on the first touch interlayer insulating film; a touch protection film on the second touch interlayer insulating film; a first metal layer between the second touch interlayer insulating film and the touch protection film; a second metal layer between the first touch interlayer insulating film and the second touch interlayer insulating film; a third metal layer on the substrate and the first touch layer interlayer insulating film; a first sensor electrode including a plurality of first sub-sensor electrodes disposed in the first metal layer and a first bridge disposed in the second metal layer to electrically connect the plurality of first sub-sensor electrodes; as well as A first touch wiring electrically connected to the first sensor electrode includes a metal provided in the third metal layer and extends in the first direction in the display area.

19. The display panel according to claim 18, further comprising: a second sensor electrode including a plurality of second sub-sensor electrodes disposed in the first metal layer and a second bridge disposed in the second metal layer to electrically connect the plurality of second sub-sensor electrodes; as well as A second touch wiring, which is electrically connected to the second sensor electrode, includes a metal disposed in the third metal layer and extends along the first direction in the display area, wherein the first touch wiring overlaps the plurality of second sub-sensor electrodes.

20. The display panel according to one of claims 18 and 19, further comprising: a third sensor electrode, the third sensor electrode being disposed in the first metal layer; a third touch wiring electrically connected to the third sensor electrode and including a metal provided in the second metal layer different from the third metal layer; a fourth sensor electrode including a plurality of fourth sub-sensor electrodes disposed in the first metal layer and a second bridge disposed in the second metal layer to electrically connect the plurality of fourth sub-sensor electrodes; as well as A fourth touch wiring electrically connected to the fourth sensor electrode includes a metal provided in the third metal layer and extends along the first direction in the display area.

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