Touch unit and display device including the same

Abstract

A touch unit and a display apparatus are provided. The touch unit is provided to include a touch electrode provided in a sensor area. A touch driving wire is connected to the touch electrode. The touch driving wire includes a first wire connected to a first side of the touch electrode and a second wire branched from the first wire and connected to a second side of the touch electrode. A pad electrode line is spaced apart from the touch driving wire. The pad electrode line is connected to a pad. A pad connection line is connected to the touch driving wire and the pad electrode line. The pad connection line is provided in a different layer from the touch driving wire. An area where the pad connection line contacts the first wire is greater than an area where the pad connection line contacts the pad electrode line.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2019-0082523, filed on July 9, 2019, with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present invention relates to a touch unit and a display device including the touch unit. Background Technology

[0004] Electronic devices such as smartphones, tablet PCs, digital cameras, laptops, navigation devices, and televisions (TVs) include display devices for displaying images to a user. Display devices include display panels configured to generate and display images, as well as various input devices.

[0005] Recently, touch units that detect touch input have been applied to display devices such as smartphones and tablet computers. The touch unit detects the user's touch input and calculates the touch input coordinates corresponding to the position of the touch input.

[0006] The touch unit includes a first touch electrode electrically connected in one direction and a second touch electrode electrically connected in another direction intersecting the first direction. Touch driving wiring is connected to the first touch electrode, and touch sensing wiring is connected to the second touch electrode. In this case, electrostatic defects may occur in some areas of the touch driving wiring, and therefore, the touch unit may become inoperable. Summary of the Invention

[0007] According to an embodiment of the present invention, a touch unit is configured to include a first touch electrode disposed in a touch sensor region of the touch unit. Touch driving wiring is electrically connected to the first touch electrode. The touch driving wiring includes a first wiring and a second wiring; the first wiring is connected to a first side of a plurality of first touch electrodes, and the second wiring branches from the first wiring and connects to a second side of the first touch electrodes. Pad electrode lines are spaced apart from the touch driving wiring. Pad electrode lines are connected to pads. Pad connection lines are connected to the touch driving wiring and the pad electrode lines. The pad connection lines are disposed in a different layer than the touch driving wiring. The contact area between the pad connection lines and the first wiring is larger than the contact area between the pad connection lines and the pad electrode lines.

[0008] According to an embodiment of the present invention, the pad connection line includes a first region that contacts the first wiring, and the width of the first region in a first direction is greater than the width of the second wiring in the first direction.

[0009] According to an embodiment of the present invention, the pad connection line includes a second region that contacts the pad electrode line, and the width of the first region in the first direction is greater than the width of the second region in the first direction.

[0010] According to an embodiment of the present invention, the touch driving wiring includes first touch driving wiring and second touch driving wiring connected to different first touch electrodes in the first touch electrodes. The pad connection lines include first pad connection lines and second pad connection lines. The first pad connection lines are connected to the first touch driving wiring and overlap at least a portion of the second touch driving wiring.

[0011] According to an embodiment of the present invention, the first pad connection line connected to the first touch driving wiring further includes a third region overlapping with the second wiring of the second touch driving wiring. The width of the first region in the first direction is greater than the width of the third region in the first direction.

[0012] According to an embodiment of the present invention, a first touch conductive layer, a second touch conductive layer disposed above the first touch conductive layer, and a touch insulating layer disposed between the first touch conductive layer and the second touch conductive layer are provided. The pad electrode lines include first pad electrode lines and second pad electrode lines. The first touch electrode, the first pad connection line, and the second pad connection line are formed by the first touch conductive layer. The first touch driving wiring, the second touch driving wiring, the first pad electrode line, and the second pad electrode line are formed by the second touch conductive layer.

[0013] According to an embodiment of the present invention, the touch insulating layer has a first contact hole and a second contact hole. The first contact hole exposes a first end of each of the first pad connection line and the second pad connection line, and the second contact hole exposes a second end of each of the first pad connection line and the second pad connection line. A first wiring of a first touch driving wiring and a first wiring of a second touch driving wiring are electrically connected to the first pad connection line and the second pad connection line respectively through the first contact hole. A first pad electrode line and a second pad electrode line are electrically connected to the first pad connection line and the second pad connection line respectively through the second contact hole.

[0014] According to an embodiment of the present invention, a touch unit is configured to include a plurality of first touch electrodes disposed in a touch sensor region of the touch unit. A plurality of touch driving wirings are electrically connected to the plurality of first touch electrodes. A plurality of pad electrode lines are spaced apart from the plurality of touch driving wirings and connected to a plurality of pads. A plurality of pad connection lines are connected to the plurality of touch driving wirings and the plurality of pad electrode lines. The plurality of pad connection lines are disposed below the plurality of touch driving wirings. Each of the plurality of touch driving wirings includes a first wiring and a second wiring; the first wiring is connected to a first side of the plurality of first touch electrodes, and the second wiring branches from the first wiring and connects to a second side of the plurality of first touch electrodes. Each of the plurality of pad connection lines includes a first region that contacts the first wiring. The first wiring includes a fourth region that does not overlap with one of the plurality of pad connection lines. The width of the fourth region in a first direction is greater than the width of the first region in the first direction.

[0015] According to an embodiment of the present invention, a first touch conductive layer, a second touch conductive layer disposed above the first touch conductive layer, and a touch insulating layer disposed between the first touch conductive layer and the second touch conductive layer are provided. A plurality of first touch electrodes and a plurality of pad connection lines are formed by the first touch conductive layer. A plurality of touch driving wiring lines and a plurality of pad electrode lines are formed by the second touch conductive layer.

[0016] According to an embodiment of the present invention, the touch insulating layer has a plurality of first contact holes and a plurality of second contact holes. The plurality of first contact holes expose a first end of each of a plurality of pad connection lines, and the plurality of second contact holes expose a second end of each of the plurality of pad connection lines. A first wiring is electrically connected to the pad connection line through the first contact holes. The pad electrode line is electrically connected to the pad connection line through the second contact holes, and the first contact holes are formed in a first region.

[0017] According to an embodiment of the present invention, the area of ​​the fourth region is larger than the area of ​​the first region.

[0018] According to an embodiment of the present invention, each of the plurality of pad connection lines has a second region that contacts the pad electrode line, and the width of the first region in the first direction is greater than the width of the second region in the first direction.

[0019] According to an embodiment of the present invention, the connecting electrode connects adjacent first touch electrodes among a plurality of first touch electrodes in a first direction, and the connecting electrode is composed of a second touch conductive layer.

[0020] According to an embodiment of the present invention, a plurality of second touch electrodes are spaced apart from the first touch electrode in the touch sensor region. A plurality of touch sensing wires are electrically connected to the second touch electrodes. The plurality of second touch electrodes are formed by a first touch conductive layer, and the plurality of touch sensing wires are formed by a second touch conductive layer.

[0021] According to an embodiment of the present invention, the touch signal layer is disposed in the same layer as the multiple pad connection lines and is spaced apart from the multiple pad connection lines.

[0022] According to an embodiment of the present invention, a touch signal layer is disposed below a plurality of touch driving wirings, and the touch signal layer at least partially overlaps with the first wirings in the thickness direction.

[0023] According to an embodiment of the present invention, the first wiring is electrically connected to the touch signal layer through a third contact hole at the end of the exposed touch signal layer.

[0024] According to an embodiment of the present invention, each of the multiple touch driving wirings includes a first touch driving wiring and a second touch driving wiring connected to different first touch electrodes among the multiple first touch electrodes, and the pad connection line connected to the first touch driving wiring at least partially overlaps with the second wiring of the second touch driving wiring.

[0025] According to an embodiment of the present invention, the pad connection line connected to the first touch driving wiring further includes a third region overlapping with the second wiring of the second touch driving wiring, and the width of the fourth region in the first direction is greater than the width of the third region in the first direction.

[0026] According to an embodiment of the present invention, a display device is configured to include a display unit and a touch unit. The display unit includes a display area having a plurality of pixels, and the touch unit includes a touch sensor area, the touch sensor area at least partially overlapping the display area. The touch unit includes a plurality of first touch electrodes disposed in the touch sensor area, a plurality of touch driving wirings electrically connected to the plurality of first touch electrodes, a plurality of pad electrode lines spaced apart from the plurality of touch driving wirings and connected to a plurality of pads, and a plurality of pad connection lines connected to the plurality of touch driving wirings and the plurality of pad electrode lines. The plurality of pad connection lines are disposed below the plurality of touch driving wirings.

[0027] Each of the multiple touch driver wirings includes a first wiring and a second wiring. The first wiring is connected to a first side of a plurality of first touch electrodes, and the second wiring branches from the first wiring and connects to a second side of the plurality of first touch electrodes. The contact area between each of the multiple pad connection lines and the first wiring is different from the contact area between each of the multiple pad connection lines and one of the multiple pad electrode lines.

[0028] According to an embodiment of the present invention, a plurality of second touch electrodes are disposed between a plurality of first touch electrodes within a touch sensor region, and are connected to a plurality of touch sensing wires at a third side of the touch sensor region. A first protection wire is disposed at the third side of the touch unit between the outermost touch sensing wire and the first ground wire. A second protection wire is inserted at the first side of the touch sensor region between the innermost second wire and the first wire, and is located between the third side of the touch sensor region and the innermost second wire. A third protection wire is inserted at the corner defined between the first side and the fourth side of the touch sensor region between the outermost first wire and the innermost touch sensing wire. A fourth protection wire is inserted at the second side of the touch sensor region between the outermost second wire and the second ground wire. Attached Figure Description

[0029] The above and other aspects and features of this disclosure will become more apparent from the detailed description of embodiments thereof with reference to the accompanying drawings, in which:

[0030] Figure 1 This is a perspective view showing a display device according to an embodiment of the present invention;

[0031] Figure 2 This illustrates an embodiment of the present invention. Figure 1 A floor plan of the display device;

[0032] Figure 3 This illustrates the following according to an embodiment of the invention: Figure 2 A sectional view of the section cut by line I-I';

[0033] Figure 4 This illustrates an embodiment of the present invention. Figure 3 A plan view of the display unit;

[0034] Figure 5 This illustrates an embodiment of the present invention. Figure 3 A plan view of the touch unit;

[0035] Figure 6 This illustrates an embodiment of the present invention. Figure 5 A plan view of area A;

[0036] Figure 7 This illustrates the following according to an embodiment of the invention: Figure 6 A sectional view of the section cut by line II-II';

[0037] Figure 8 This illustrates an embodiment of the present invention. Figure 5 An enlarged plan view of region B;

[0038] Figure 9This illustrates an embodiment of the present invention. Figure 8 Some touch driver wiring diagrams;

[0039] Figure 10 This illustrates the following according to an embodiment of the invention: Figure 9 A sectional view of the section cut by line III-III';

[0040] Figure 11 This is a plan view showing a portion of a touch unit according to an embodiment of the present invention;

[0041] Figure 12 This illustrates the following according to an embodiment of the invention: Figure 11 A sectional view of the section cut by line IV-IV';

[0042] Figure 13 This is a plan view showing a portion of a touch unit according to an embodiment of the present invention;

[0043] Figure 14 This illustrates the following according to an embodiment of the invention: Figure 13 A sectional view of the section cut by line V-V';

[0044] Figure 15 This is a plan view showing a portion of a touch unit according to an embodiment of the present invention;

[0045] Figure 16 This illustrates the following according to an embodiment of the invention: Figure 15 A sectional view of the section cut by line VI-VI';

[0046] Figure 17 This is a plan view illustrating a touch unit according to an embodiment of the present invention; and

[0047] Figure 18 This illustrates an embodiment of the present invention. Figure 17 A magnified plan view of region C. Detailed Implementation

[0048] The invention will be described more fully below with reference to the accompanying drawings, in which various embodiments are illustrated.

[0049] Throughout the following description and corresponding drawings, the same reference numerals may refer to the same elements. In the drawings, the thickness, scale, and dimensions of parts may be exaggerated for the purpose of effectively illustrating the technical content. However, the invention is not limited thereto. It should also be understood that when a layer is referred to as being "on" another layer or substrate, it may be directly on the other layer or substrate, or there may be an intermediate layer.

[0050] In the following description, embodiments of the invention will be described with reference to the accompanying drawings.

[0051] Figure 1 This is a perspective view showing a display device 10 according to an embodiment of the present invention. Figure 2 This illustrates an embodiment of the present invention. Figure 1 A plan view of the display device 10.

[0052] The first direction (e.g., DR1 direction) may also be referred to as the Y-axis direction in this paper, the second direction (e.g., DR2 direction) may also be referred to as the X-axis direction in this paper, and the third direction (e.g., DR3 direction) may also be referred to as the Z-axis direction in this paper.

[0053] Reference Figure 1 and Figure 2 The display device 10 is a device for displaying still or moving images. The display device 10 can be used in portable electronic devices such as mobile phones, smartphones, tablet PCs, smartwatches, watch phones, mobile communication terminals, electronic notebooks, e-books, portable multimedia players (PMPs), navigation devices, and ultra-mobile PCs (UMPCs), and can also be used as a display screen for various products such as televisions, laptops, monitors, billboards, and devices for the Internet of Things (IoT). The display device 10 can be any of an organic light-emitting display device, a liquid crystal display device, a plasma display device, a field emission display device, an electrophoretic display device, an electrowetting display device, a quantum dot light-emitting display device, and a micro light-emitting diode (LED) display device. In the following description, the display device 10 will primarily be described as an organic light-emitting display device, but the invention is not limited thereto.

[0054] The display device 10 according to an embodiment of the present invention includes a display panel 100, a display driving circuit 200, a display circuit board 300, a touch driving circuit 400, a touch circuit board 410, and a touch unit TDU.

[0055] The top view of the display panel 100 may have a generally rectangular shape, having a long side extending in a first direction (e.g., DR1 direction) and a short side extending in a second direction (e.g., DR2 direction) intersecting the first direction (e.g., DR1 direction). The corner where the long side extending in the first direction (e.g., DR1 direction) intersects the short side extending in the second direction (e.g., DR2 direction) may be rounded to have a certain curvature, or may form a right angle. The shape of the top view of the display device 10 is not limited to a rectangular shape, but may be formed as another polygonal shape, a circular shape, or an elliptical shape. The display panel 100 may have a flat upper surface. However, the invention is not limited to this, and the display device 10 may include curved portions disposed at its left and right ends. In this case, the curved portions may have a constant curvature or a variable curvature. Furthermore, the display panel 100 may be curved or bent.

[0056] The display panel 100 may include pixels disposed in the display area for displaying images and display electrode pads disposed in a non-display area surrounding the display area. The display electrode pads may be disposed on one side edge of the display panel 100 and may be electrically connected to the display circuit board 300. Reference will be made below. Figure 3 and Figure 4 Detailed description of display panel 100.

[0057] The display driver circuit 200 outputs signals and voltages for driving the display panel 100. For example, the display driver circuit 200 can provide data voltages to data lines. Furthermore, the display driver circuit 200 can provide power supply voltages to power lines and scan control signals to the scan driver. The display driver circuit 200 can be formed as an integrated circuit (IC) and can be attached to the display panel 100 by a chip-on-glass (COG) method, a chip-on-plastic (COP) method, or an ultrasonic bonding method. The display driver circuit 200 can be attached to the display panel 100 that is not covered by the touch unit TDU and is exposed. For example, the display driver circuit 200 can extend across the short side of the display panel 100 in a second direction (e.g., DR2 direction) and can be disposed between the display circuit board 300 and the touch unit TDU. Alternatively, the display driver circuit 200 can be mounted on the display circuit board 300.

[0058] The display circuit board 300 can be attached to the display electrode pads of the display panel 100 using an anisotropic conductive film. For example, the display circuit board 300 can at least partially overlap with the short side of the display panel 100. Therefore, the leads of the display circuit board 300 can be electrically connected to the display electrode pads of the display panel 100. The display circuit board 300 can be a flexible film, such as a flexible printed circuit board, a printed circuit board, or a chip on film.

[0059] The touch unit (TDU) can be disposed on the display panel 100. In a plan view, the touch unit TDU can have a generally rectangular shape, having a long side extending in a first direction (e.g., DR1 direction) and a short side extending in a second direction (e.g., DR2 direction). The corner where the long side in the first direction (e.g., DR1 direction) intersects the short side in the second direction (e.g., DR2 direction) can be rounded to have a certain curvature, or it can form a right angle. The top view shape of the touch unit TDU is not limited to a rectangular shape, but can be formed into another polygonal shape, a circular shape, or an elliptical shape. The top view shape of the touch unit TDU can be similar to the top view shape of the display panel 100.

[0060] The touch unit TDU can be configured to be flat. However, the invention is not limited thereto, and the touch unit TDU may include curved portions disposed at its left and right ends. In this case, the curved portions may have a constant curvature or a variable curvature. Furthermore, the touch unit TDU may be curved or bent, just like the display panel 100.

[0061] The touch unit (TDU) may include touch electrodes and touch electrode pads. The touch electrodes are disposed in the touch sensor area and can sense user touches. The touch electrode pads are disposed in a touch periphery area located around the touch sensor area. The touch electrode pads may be disposed on one edge of the touch unit TDU and can be electrically connected to the touch circuit board 410. See below for further details. Figure 3 and Figure 5 Detailed description of the touch unit (TDU).

[0062] The touch circuit board 410 can be attached to the touch electrode pads of the touch unit TDU using an anisotropic conductive film. Therefore, the leads of the touch circuit board 410 can be electrically connected to the touch electrode pads of the touch unit TDU. The touch circuit board 410 can be a flexible film, such as a flexible printed circuit board, a printed circuit board, or a chip-on-film device.

[0063] The touch driving circuit 400 can be connected to the touch electrodes of the touch unit TDU. For example, the touch driving circuit 400 can be located at one end of the touch circuit board 410 in a first direction (e.g., DR1 direction). The touch driving circuit 400 applies a touch driving signal to the touch electrodes of the touch unit TDU and measures the capacitance value of the touch electrodes. The touch driving signal can be a signal with multiple driving pulses. The touch driving circuit 400 can determine whether a touch is input based on the capacitance value, and can also calculate the touch coordinates at the point of input touch. The touch driving circuit 400 can be formed as an integrated circuit (IC) and mounted on the touch circuit board 410.

[0064] Figure 3 It is along Figure 2 A sectional view taken by line I-I'.

[0065] Reference Figure 3 The display device 10 may include a display unit DU, a touch unit TDU, and an adhesive member SEAL for bonding the display unit DU and the touch unit TDU.

[0066] The display unit DU may include a first substrate SUB1, a thin film transistor layer TFTL, and a light-emitting element layer EML.

[0067] The first substrate SUB1 may include a rigid substrate and / or a flexible substrate that is bendable, foldable, and rollable. The first substrate SUB1 may include an insulating material, such as glass, quartz, and / or a polymeric resin. Examples of polymeric materials may include polyethersulfone (PES), polyacrylate (PA), polyarylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyimide (PI), polycarbonate (PC), cellulose triacetate (CAT), and / or cellulose acetate propionate (CAP). Alternatively, the first substrate SUB1 may include a metallic material.

[0068] A thin-film transistor layer (TFTL) can be disposed on the first substrate SUB1. Not only can the thin-film transistor for each pixel be disposed on the TFTL, but scan lines, data lines, power lines, scan control lines, data connection lines for connecting the display driving circuit 200 and the data lines, and pad connection lines for connecting the display driving circuit 200 and the display electrode pads can also be disposed on the TFTL. Each of the thin-film transistors may include a gate electrode, a semiconductor layer, a source electrode, and a drain electrode. This will be described in detail below.

[0069] The light-emitting element layer (EML) can be disposed on the thin-film transistor layer (TFTL). The EML may include pixels in which a first electrode, a light-emitting layer, and a second electrode are sequentially stacked to emit light, and a pixel-defining film defining the pixels. The pixels of the EML can be disposed in the display area.

[0070] The light-emitting layer can be an organic light-emitting layer comprising organic materials. In this case, the light-emitting layer may include a hole transport layer, an organic light-emitting layer, and an electron transport layer. When a specific voltage is applied to the first electrode and a cathode voltage is applied to the second electrode through the thin-film transistor (TFTL), holes and electrons move through the hole transport layer and the electron transport layer to the organic light-emitting layer and combine with each other in the organic light-emitting layer to emit light. In this case, the first electrode can be an anode electrode, and the second electrode can be a cathode electrode.

[0071] The touch unit TDU may include a second substrate SUB2 and a touch sensor layer TSL.

[0072] The second substrate SUB2 may include a rigid substrate and / or a flexible substrate that is bendable, foldable, and rollable. The second substrate SUB2 may be made of an insulating material, such as glass, quartz, and / or a polymer resin. Examples of polymer materials may be selected from PES, PA, PAR, PEI, PEN, PET, PPS, PI, PC, CAT, and CAP. Alternatively, the second substrate SUB2 may include a metallic material. Furthermore, the second substrate SUB2 may be used as a packaging substrate configured to seal the light-emitting element layer EML.

[0073] A touch sensor layer (TSL) can be disposed on a second substrate (SUB2). The TSL may include touch electrodes, touch electrode pads, and touch signal lines. The touch electrodes are used to sense the user's touch using a capacitive method, and the touch signal lines are used to connect the touch electrode pads and the touch electrodes. For example, the TSL can use a self-capacitance method or a mutual capacitance method to sense the user's touch. This will be described in detail below.

[0074] A polarizing film and a cover window can be additionally disposed above the touch sensor layer (TSL). In this case, the polarizing film can be disposed on the touch sensor layer (TSL), and the cover window can be attached to the polarizing film by means of a transparent adhesive component.

[0075] The adhesive seam can bond the first substrate SUB1 of the display unit DU and the second substrate SUB2 of the touch unit TDU. The adhesive seam can include a glass frit adhesive layer, a UV-curable resin, and / or a thermosetting resin, but the invention is not limited thereto. For example, the adhesive seam can extend from the first substrate SUB1 to the second substrate SUB2 in a third direction (e.g., DR3 direction), in which case the upper surface contacts the second substrate SUB2 and the lower surface contacts the first substrate SUB1. The adhesive seams can be spaced apart in a second direction (e.g., DR2 direction) to overlap the edge portions of the first substrate SUB1 and the second substrate SUB2.

[0076] Figure 3 The illustration shows an empty space formed between the light-emitting element layer EML, the second substrate SUB2, and the adhesive member SEAL; however, embodiments of the invention are not limited thereto. For example, a filler film may be disposed between the light-emitting element layer EML and the second substrate SUB2. The filler film may include an epoxy filler film and / or a silicon filler film.

[0077] Figure 4 It is shown Figure 3 A plan view of the display unit DU.

[0078] For ease of description, Figure 4 The image only shows the pixel P of the display unit DU, the scan line SL, the data line DL, the power line PL, the scan control line SCL, the scan driver 110, the display driver circuit 200, the display electrode pad DP, the data connection line DLL, and the pad connection line PLL.

[0079] Reference Figure 4 The display panel 100 may include a display area DA and a non-display area NDA. In the display area DA, pixels P are formed to form a display image, and the non-display area NDA is the peripheral area of ​​the display area DA. The non-display area NDA can be defined as the area from the outermost part of the display area DA to the edge of the display panel 100.

[0080] Scan lines SL, data lines DL, power lines PL, and pixels P can be disposed in the display area DA. Scan lines SL can be configured to extend parallel to each other in a second direction (e.g., DR2 direction) and spaced apart in a first direction (e.g., DR1 direction), and data lines DL can be configured to extend parallel to each other in a first direction (e.g., DR1 direction) intersecting the second direction (e.g., DR2 direction). Power lines PL can include at least one line configured to be parallel to data lines DL in the first direction (e.g., DR1 direction) and multiple lines branching from the at least one line in the second direction (e.g., DR2 direction).

[0081] Each pixel P can be connected to at least one scan line SL, any one of the data lines DL, and a power line PL. Each pixel P may include a thin-film transistor, which includes a driving transistor, at least one switching transistor, an organic light-emitting diode, and a capacitor. When a scan signal is applied from the scan line SL, each pixel P can receive a data voltage from the data line DL and can provide a driving current to the organic light-emitting diode to emit light in response to the data voltage applied to the gate electrode.

[0082] The scan driver 110, display driver circuit 200, scan control line SCL, data connection line DLL, and pad connection line PLL can be set in the non-display area NDA.

[0083] The scan driver 110 is connected to the display driver circuit 200 via at least one scan control line SCL. Therefore, the scan driver 110 can receive scan control signals from the display driver circuit 200. The scan driver 110 generates scan signals in response to the scan control signals and provides the scan signals to the scan lines SCL.

[0084] Scan drive 110 in Figure 4The diagram shows a non-display area NDA located outside one side of the display area DA, but the invention is not limited thereto. For example, the scan driver 110 may be located in the non-display area NDA adjacent to the two long sides of the display area DA extending in a first direction (e.g., the DR1 direction).

[0085] The display driver circuit 200 is connected to the display electrode pads DP of the display pad area DPA via pad connection lines PLL and receives digital video data and timing signals. The display driver circuit 200 converts the digital video data into analog positive / negative data voltages and provides these analog positive / negative data voltages to the data line DL via the data connection line DLL. Furthermore, the display driver circuit 200 generates a scan control signal for controlling the scan driver 110 and provides this scan control signal via the scan control line SCL. The scan signal from the scan driver 110 selects the pixel P to which data voltage is provided, and the data voltage is provided to the selected pixel P. The display driver circuit 200 can be formed as an IC and can be attached to a substrate using COG, COP, or ultrasonic bonding methods.

[0086] Figure 5 It is shown Figure 3 A plan view of the touch unit (TDU). (Refer to...) Figure 5 The touch unit TDU includes a touch sensor region TSA for sensing user touches and a touch peripheral region TPA disposed around the touch sensor region TSA. The touch sensor region TSA may overlap with the display region DA of the display unit DU, and the touch peripheral region TPA may overlap with the non-display region NDA of the display unit DU in a third direction (e.g., the DR3 direction). For example, the touch peripheral region TPA may have a shape corresponding to the shape of the non-display region NDA of the display unit DU, and the touch sensor region TSA may have a shape corresponding to the shape of the display region DA.

[0087] The first touch electrode TE and the second touch electrode RE can be disposed in the touch sensor area TSA. The first touch electrode TE and the second touch electrode RE can have a rhomboid or triangular shape in a planar view. Specifically, the first touch electrode TE and the second touch electrode RE disposed at the edge of the touch sensor area TSA can have a triangular shape in a planar view, and the other first touch electrodes TE and the second touch electrode RE can have a rhomboid shape in a planar view. To prevent moiré patterns caused by the first touch electrodes TE and the second touch electrode RE when viewing images on the display device 10, the first touch electrodes TE and the second touch electrode RE can have uneven sides in a planar view. However, the planar shape of the first touch electrode TE and the second touch electrode RE is not limited to... Figure 5 The planar shape shown.

[0088] The first touch electrode TE and the second touch electrode RE can be arranged spaced apart from each other. The first touch electrode TE can be arranged in multiple columns along a first direction (e.g., DR1 direction), and the second touch electrode RE can be arranged in multiple rows along a second direction (e.g., DR2 direction). The first touch electrode TE in each of the multiple columns along the first direction (e.g., DR1 direction) can be electrically connected. Furthermore, the second touch electrode RE in each of the multiple rows along the second direction (e.g., DR2 direction) can be electrically connected.

[0089] To prevent the first touch electrode TE and the second touch electrode RE from short-circuiting each other in their intersection area, the first touch electrodes TE, which are adjacent to each other in the first direction (e.g., the DR1 direction), can be connected via the connecting electrode CE (see...). Figure 6 Electrical connection. The connection electrode CE can extend in a direction inclined to a first direction (e.g., DR1 direction) and a second direction (e.g., DR2 direction). The first touch electrode TE and the second touch electrode RE can be disposed in one layer, and the connection electrode CE can be disposed in a layer different from the first touch electrode TE and the second touch electrode RE. Therefore, the first touch electrode TE, which is electrically connected in the first direction (e.g., DR1 direction), and the second touch electrode RE, which is electrically connected in the second direction (e.g., DR2 direction), are electrically insulated from each other.

[0090] The first touch electrode TE and the second touch electrode RE can be driven by mutual capacitance or self-capacitance.

[0091] When the first touch electrode TE and the second touch electrode RE are driven using a mutual capacitance method, a touch drive signal can be provided to the first touch electrode TE via touch drive wiring TL1 to TLp to charge the mutual capacitance formed in the cross region between the first touch electrode TE and the second touch electrode RE. Then, the amount of charge change in the mutual capacitance is measured via the second touch electrode RE, and whether a touch input is received is determined based on the amount of charge change in the mutual capacitance. The touch drive signal can be a signal with multiple touch drive pulses.

[0092] Furthermore, when driving the first touch electrode TE and the second touch electrode RE using the self-capacitance method, touch drive signals can be provided to all the first touch electrodes TE and the second touch electrode RE through touch drive wiring TL1 to TLp and touch sensing wiring RL1 to RLq to charge the self-capacitance of the first touch electrodes TE and the second touch electrode RE. Then, the change in charge of the self-capacitance is measured through touch drive wiring TL1 to TLp and touch sensing wiring RL1 to RLq, and whether a touch input is received is determined based on the change in charge of the self-capacitance.

[0093] For ease of description, the following text will primarily describe driving the first touch electrode TE and the second touch electrode RE using a mutual capacitance method. In this method, multiple touch driving pulses are applied to the first touch electrode TE, and the charge change of the mutual capacitance is measured through touch sensing wirings RL1 to RLq connected to the second touch electrode RE.

[0094] Touch driver wiring TL1 to TLp (where p is a positive integer equal to or greater than 2), touch sensing wiring RL1 to RLq (where q is a positive integer equal to or greater than 2), and touch electrode pads TP can be set in the touch peripheral area TPA.

[0095] Touch driver wirings TL1 to TLp can be connected to the first touch electrode TE. For example, the first touch driver wiring TL1 can be electrically connected to the first touch electrode TE disposed in the first column of the touch sensor area TSA, and the second touch driver wiring TL2 can be electrically connected to the first touch electrode TE disposed in the second column. Furthermore, the p-th touch driver wiring TLp can be electrically connected to the first touch electrode TE disposed in the p-th column.

[0096] The touch driver wiring TL1 to TLp (where p is a positive integer equal to or greater than 2) may include first wiring TL11 to TLp1 and second wiring TL12 to TLp2.

[0097] The first ends of the first wirings TL11 to TLp1 (where p is a positive integer equal to or greater than 2) of the touch driver wirings TL1 to TLp can be connected to the first touch electrode TE located on the first side (e.g., the short side) of the touch sensor region TSA. The first side of the touch sensor region TSA can refer to the side closest to the touch pad region TDA in which the touch electrode pad TP is located. The second ends of the first wirings TL11 to TLp1 opposite to the first ends can be connected to a corresponding touch electrode pad TP of the touch pad region TDA. For example, the first wirings TL11 to TLp1 can connect the first touch electrode TE located on the first side of the touch sensor region TSA to the corresponding touch electrode pad TP of the touch pad region TDA.

[0098] For example, such as Figure 5As shown, the first wiring TL11 of the first touch driving wiring TL1 can be electrically connected to the first touch electrode TE disposed in the first column of the touch sensor region TSA. The first wiring TL21 of the second touch driving wiring TL2 can be electrically connected to the first touch electrode TE disposed in the second column of the touch sensor region TSA. Furthermore, the first wiring TLp1 of the p-th touch driving wiring TLp can be electrically connected to the first touch electrode TE disposed in the p-th column of the touch sensor region TSA. In this case, the first column of the touch sensor region TSA can be the leftmost column of the touch sensor region TSA, and the p-th column of the touch sensor region TSA can be the rightmost column of the touch sensor region TSA.

[0099] The first ends of the second wirings TL12 to TLp2 of the touch driver wirings TL1 to TLp can be connected to the first touch electrode TE disposed on the second side of the touch sensor region TSA. The second side of the touch sensor region TSA can be the side opposite to the first side of the touch sensor region TSA. The second ends of the second wirings TL12 to TLp2 can be connected to the touch electrode pad TP of the touch pad region TDA. For example, the second wirings TL12 to TLp2 can connect the first touch electrode TE disposed on the second side of the touch sensor region TSA and the touch electrode pad TP of the touch pad region TDA.

[0100] For example, such as Figure 5 As shown, the second wiring TL12 of the first touch driving wiring TL1 can be electrically connected to the first touch electrode TE disposed in the first column of the touch sensor area TSA. The second wiring TL22 of the second touch driving wiring TL2 can be electrically connected to the first touch electrode TE located in the second column of the touch sensor area TSA. Furthermore, the second wiring TLp2 of the p-th touch driving wiring TLp can be electrically connected to the first touch electrode TE disposed in the p-th column of the touch sensor area TSA.

[0101] The second wirings TL12 to TLp2 of the touch drive wirings TL1 to TLp can branch from the first wirings TL11 to TLp1 and can pass through the outside of the first and fourth sides (e.g., the leftmost long side) of the touch sensor area TSA, and can be connected to the first touch electrode TE located on the second side of the touch sensor area TSA.

[0102] For example, such as Figure 5 As shown, the second wiring TL12 of the first touch driver wiring TL1 can branch from the first wiring TL11, and the second wiring TL22 of the second touch driver wiring TL2 can branch from the first wiring TL21. Furthermore, the second wiring TLp2 of the p-th touch driver wiring TLp can branch from the first wiring TLp1.

[0103] The first end of the touch sensing wirings RL1 to RLq can be connected to the second touch electrode RE located on the third side (e.g., the rightmost long side) of the touch sensor region TSA. The third side of the touch sensor region TSA can be the side opposite to the fourth side of the touch sensor region TSA. The second end of the touch sensing wirings RL1 to RLq can be connected to the remaining touch electrode pad TP of the touch pad region TDA. For example, the touch sensing wirings RL1 to RLq can connect the second touch electrode RE located on the third side of the touch sensor region TSA and the remaining touch electrode pad TP of the touch pad region TDA.

[0104] For example, such as Figure 5 As shown, the first touch sensing wiring RL1 can be electrically connected to the second touch electrode RE disposed in the first row of the touch sensor region TSA. The second touch sensing wiring RL2 can be electrically connected to the second touch electrode RE disposed in the second row of the touch sensor region TSA. Furthermore, the qth touch sensing wiring RLq can be electrically connected to the second touch electrode RE disposed in the qth row. For example, the second touch electrode RE connected to the corresponding touch sensing wiring can be the outermost second touch electrode RE located on the third side of the touch sensor region TSA in each row.

[0105] The touch electrode pad TP can be located on the first side of the touch peripheral area TPA. Touch circuit board 410 (see...) Figure 1 An anisotropic conductive film can be attached to the touch electrode pad TP. Therefore, the touch electrode pad TP can be electrically connected to the touch circuit board 410. The touch electrode pad TP can be connected via the pad electrode line PEL (see...). Figure 8 Connect the touch driver wiring TL1 to TLp. This will be referenced below. Figures 8 to 10 Detailed description.

[0106] The first protective line GL1, the second protective line GL2, the third protective line GL3, the fourth protective line GL4, the first ground line GRL1, and the second ground line GRL2 can be disposed in the touch peripheral area TPA. The protective lines GL1, GL2, GL3, GL4 and the ground lines GRL1, GRL2 can be formed as opaque metallic conductive layers, such as single or multiple layers of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and / or copper (Cu).

[0107] A first guard line GL1 can be disposed outside the qth touch sensing wiring RLq, which is the outermost touch sensing wiring in the second direction (e.g., the DR2 direction). Furthermore, a first ground line GRL1 can be disposed outside the first guard line GL1. For example, the first guard line GL1 can be disposed between the first ground line GRL1 and the qth touch sensing wiring RLq, which is the outermost touch sensing wiring, to minimize the impact of voltage variations on the qth touch sensing wiring RLq caused by the first ground line GRL1. The first ends of the first guard line GL1 and the first ground line GRL1 can be connected to the touch electrode pad TP located at the rightmost position. For example, the first guard line GL1 can be inserted from the touch pad region TDA across the third side of the touch sensor region TSA between the outermost qth touch sensing wiring RLq and the first ground line GRL1.

[0108] The second guard line GL2 can be disposed between the first wiring TLp1 of the p-th touch driving wiring TLp and the innermost first touch sensing wiring RL1, which is set between touch sensing wirings RL1 and RLq. Therefore, the second guard line GL2 can minimize the mutual influence between the first touch sensing wiring RL1 and the first wiring TLp1 of the p-th touch driving wiring TLp. The first end of the second guard line GL2 can be connected to the touch electrode pad TP. For example, the second guard line GL2 can be inserted from the touch pad region TDA between the first wiring TLp1 and the first touch sensing wiring RL1 across the edge portion defined by the first side of the touch sensor region TSA.

[0109] A third guard line GL3 can be disposed between the first wiring TL11 and the second wiring TL12 of the first touch driving wiring TL1. For example, the third guard line GL3 can have a first portion inserted between the first wiring TL11 and the second wiring TL12, starting from a point adjacent to the branch point of the first wiring TL11 and the second wiring TL12, and can extend across a first side of the touch sensor region TSA in a second direction (e.g., DR2 direction) parallel to the first wiring TL11 and the second wiring TL12. A second portion of the third guard line GL3 can extend from the first portion across a fourth side of the touch sensor region TSA in a first direction (e.g., DR1 direction), and can be disposed between the fourth side of the touch sensor region TSA and the second wiring TL12. The third guard line GL3 can minimize the influence between the first wiring TL11 and the second wiring TL12. One end of the third guard line GL3 can be connected to the touch electrode pad TP.

[0110] The fourth guard line GL4 can be positioned outside the second wiring TLp2, which is the outermost second wiring among the second wirings TL12 to TLp2 of the touch driver wirings TL1 to TLp. Furthermore, the second ground line GRL2 can be positioned outside the fourth guard line GL4. For example, the fourth guard line GL4 can be positioned between the second ground line GRL2 and the second wiring TLp2, where the second wiring TLp2 is the outermost second wiring among the second wirings TL12 to TLp2, and the fourth guard line GL4 can minimize the impact of voltage variations on the second wiring TLp2 caused by the second ground line GRL2. The first end of the fourth guard line GL4 and the first end of the second ground line GRL2 can be connected to the touch electrode pad TP located on the first side of the touch sensor region TSA. For example, the fourth guard line GL4 and the second ground line GRL2 can extend from the touch pad region TDA around the first side, fourth side, and second side of the touch sensor region TSA.

[0111] The first grounding wire GRL1 is located at the outermost right side of the touch unit TDU, and the second grounding wire GRL2 is located at the outermost bottom, left, and top sides of the touch unit TDU. A grounding voltage is applied to the first grounding wire GRL1 and the second grounding wire GRL2. When static electricity is introduced from the outside, the static electricity can be discharged to the first grounding wire GRL1 and the second grounding wire GRL2.

[0112] Meanwhile, when the first touch electrode TE and the second touch electrode RE are driven by mutual capacitance, a grounding voltage can be applied to the first protection line GL1, the second protection line GL2, the third protection line GL3 and the fourth protection line GL4.

[0113] according to Figure 5 In an embodiment of the present invention, the second wirings TL12 to TLp2 of the touch driving wirings TL1 to TLp branch from the first wirings TL11 to TLp1. The first wirings TL11 to TLp1 and the second wirings TL12 to TLp2 can be used to apply a touch driving signal to a first touch electrode TE disposed on a first side and a second side of the touch sensor region TSA. Therefore, the touch driving signal can be stably applied to the first touch electrode TE.

[0114] The Touch Sensor Area (TSA) will be described in more detail below.

[0115] Figure 6 It is shown Figure 5 A plan view of area A. Figure 7 It is along Figure 6 The sectional view taken from line II-II'.

[0116] Reference Figure 6 and Figure 7A thin-film transistor layer (TFTL) is disposed on a first substrate SUB1. The TFTL includes a thin-film transistor 120, a gate insulating film 130, an interlayer insulating film 140, a protective film 150, and a planarization film 160.

[0117] A buffer film BF can be formed on one surface (e.g., the upper surface) of the first substrate SUB1. For example, the buffer film BF can be disposed between the thin-film transistor layer TFTL and the first substrate SUB1. The buffer film BF can be disposed on one surface of the first substrate SUB1 to protect the thin-film transistor 120 and the organic light-emitting layer 172 of the light-emitting element layer EML from the influence of moisture permeating through the first substrate SUB1, which is susceptible to moisture permeation. The buffer film BF may comprise a plurality of alternately stacked inorganic films. For example, the buffer film BF can be formed as a multi-film composed of inorganic films, such as alternately stacked silicon nitride layers, silicon oxynitride layers, silicon oxide layers, titanium oxide layers, and / or aluminum oxide layers. However, according to embodiments of the present invention, the buffer film BF may be omitted.

[0118] A thin-film transistor 120 is disposed on a buffer film BF. The thin-film transistor 120 includes an active layer 121, a gate electrode 122, a source electrode 123, and a drain electrode 124. Figure 7 In the illustration, the thin-film transistor 120 is shown as a top-gate type with the gate electrode 122 disposed on the active layer 121, but the present disclosure is not limited thereto. For example, the thin-film transistor 120 may be formed as a bottom-gate type or a dual-gate type. In the bottom-gate type, the gate electrode 122 is disposed below the active layer 121, and in the dual-gate type, the gate electrode 122 is disposed on both the upper and lower portions of the active layer 121.

[0119] An active layer 121 is formed on a buffer film BF. The active layer 121 may include an organic semiconductor or oxide semiconductor having polycrystalline silicon, monocrystalline silicon, low-temperature polycrystalline silicon, and / or amorphous silicon. A light-blocking layer configured to block external light incident on the active layer 121 may be formed between the buffer film BF and the active layer 121.

[0120] The gate insulating film 130 may be disposed on the active layer 121. The gate insulating film 130 may include an inorganic film, such as silicon nitride, silicon oxynitride, silicon oxide, titanium oxide, and / or aluminum oxide.

[0121] The gate electrode 122 and the gate line can be formed on the gate insulating film 130. The gate electrode 122 and the gate line can be formed as a single layer or multiple layers including molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd) and / or copper (Cu).

[0122] Interlayer insulating film 140 may be disposed on gate electrode 122 and gate line. Interlayer insulating film 140 may include inorganic film, such as silicon nitride, silicon oxynitride, silicon oxide, titanium oxide, or aluminum oxide.

[0123] The source electrode 123 and drain electrode 124 can be disposed on the interlayer insulating film 140. The source electrode 123 and drain electrode 124 can be connected to the active layer 121 through contact holes passing through the gate insulating film 130 and the interlayer insulating film 140. The source electrode 123 and drain electrode 124 can be formed as a single layer or multiple layers made of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd) and / or copper (Cu).

[0124] A protective film 150 may be formed on the source electrode 123 and the drain electrode 124, and may insulate the thin-film transistor 120. The protective film 150 may include an inorganic film, such as silicon nitride, silicon oxynitride, silicon oxide, titanium oxide, or aluminum oxide.

[0125] A planarization film 160 may be formed on the protective film 150 to planarize the step portions formed due to the thin-film transistor 120. The planarization film 160 may comprise an organic film made of acrylic resin, epoxy resin, phenolic resin, polyamide resin, and / or polyimide resin.

[0126] The light-emitting element layer (EML) can be disposed on the thin-film transistor layer (TFTL). The light-emitting element layer (EML) includes a light-emitting element 170 and a pixel defining film 180.

[0127] Light-emitting elements 170 and pixel defining films 180 are disposed on planarization films 160. Each of the light-emitting elements 170 may include a first electrode 171, an organic light-emitting layer 172, and a second electrode 173.

[0128] The first electrode 171 can be disposed on the planarization film 160. The first electrode 171 is connected to the drain electrode 124 of the thin film transistor 120 through contact holes passing through the protective film 150 and the planarization film 160.

[0129] The pixel defining film 180 can be configured to separate the first electrode 171 on the planarization film 160. The pixel defining film 180 can be configured to cover the edge of the first electrode 171. The pixel defining film 180 can be an organic film, including acrylic resin, epoxy resin, phenolic resin, polyamide resin and / or polyimide resin.

[0130] Each pixel P refers to the region in which the first electrode 171, the organic light-emitting layer 172, and the second electrode 173 are stacked in sequence. Holes from the first electrode 171 and electrons from the second electrode 173 combine with each other in the organic light-emitting layer 172 to emit light.

[0131] An organic light-emitting layer 172 may be formed on the first electrode 171 and the pixel defining film 180. The organic light-emitting layer 172 may include organic materials to emit light of a specific color. For example, the organic light-emitting layer 172 may include a hole transport layer, an organic material layer, and an electron transport layer.

[0132] The second electrode 173 is disposed on the organic light-emitting layer 172. The second electrode 173 may be configured to cover the organic light-emitting layer 172. The second electrode 173 may be a common layer formed in pixel P. A capping layer may be formed on the second electrode 173.

[0133] The second substrate SUB2 is disposed on the light-emitting element layer EML, and the touch sensor layer TSL is disposed on the second substrate SUB2. The touch sensor layer TSL includes a first touch electrode TE, a second touch electrode RE, a connection electrode CE, touch driving wiring TL1 to TLp, touch sensing wiring RL1 to RLq, guard lines GL1, GL2, GL3, and GL4, and ground lines GRL1 and GRL2. For ease of description and illustration, in... Figure 6 and Figure 7 The image only shows the first touch electrode TE and the second touch electrode RE disposed in the touch sensor area TSA of the touch sensor layer TSL, the first touch island electrode TEI disposed between the first touch electrode TE, and the connecting electrode CE.

[0134] A first touch conductive layer 610 is disposed on the second substrate SUB2. The first touch conductive layer 610 may include a transparent metal oxide (TCO), such as indium tin oxide (ITO) or indium zinc oxide (IZO) that can transmit light.

[0135] The first touch conductive layer 610 may include a first touch electrode TE, a second touch electrode RE, and a first touch island electrode TEI. The first touch electrode TE, the second touch electrode RE, and the first touch island electrode TEI are made of transparent metal oxide, and the aperture ratio of pixel P will not decrease even when the first touch electrode TE, the second touch electrode RE, and the first touch island electrode TEI overlap with pixel P.

[0136] The first touch electrode TE and the first touch island electrode TEI may be alternately arranged in a first direction (e.g., DR1 direction) and may be spaced apart from each other in the first direction (e.g., DR1 direction). The spaced-apart first touch electrode TE and first touch island electrode TEI may be electrically connected by the connection electrode CE, which will be described below.

[0137] A first touch insulating layer 510 is disposed on the first touch conductive layer 610. The first touch insulating layer 510 covers the first touch conductive layer 610 except for the portions in which touch contact holes TCNT1 and TCNT2 are formed. The first touch insulating layer 510 insulates the first touch conductive layer 610 and the second touch conductive layer 620 from each other (except at the contact holes CNT1, CNT2 (see...)). Figure 10 ), CNT3 (see Figure 15 CNT4, CNT5 (see CNT5) Figure 18 (and / or outside of the touch contact holes TCNT1, TCNT2). The first touch insulating layer 510 may be formed as an inorganic layer, which includes, for example, silicon nitride, silicon oxynitride, silicon oxide, titanium oxide and / or aluminum oxide.

[0138] The second touch conductive layer 620 is disposed on the first touch insulating layer 510. The second touch conductive layer 620 may be formed as an opaque metallic conductive layer, such as a single layer or multiple layers of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd) and / or copper (Cu).

[0139] The second touch conductive layer 620 may include a connection electrode CE. The connection electrode CE is composed of a conductive layer including an opaque metal, to prevent a reduction in the aperture ratio of the pixel P, such as... Figure 7 As shown, the connecting electrode CE can be configured not to overlap with pixel P and to overlap with pixel defining film 180.

[0140] The connecting electrode CE can connect to the first touch electrode TE and the first touch island electrode TEI. For example, the connecting electrode CE can be connected to the first touch electrode TE through a first touch contact hole TCNT1, which passes through the first touch insulating layer 510 and exposes the first touch electrode TE. The connecting electrode CE can also be connected to the first touch island electrode TEI through a second touch contact hole TCNT2, which passes through the first touch insulating layer 510 and exposes the first touch island electrode TEI. Therefore, the first touch electrode TE and the first touch island electrode TEI can be connected via the connecting electrode CE.

[0141] A second touch insulating layer 520 is disposed on the second touch conductive layer 620. The second touch insulating layer 520 covers the second touch conductive layer 620. The second touch insulating layer 520 may include an inorganic layer, such as silicon nitride, silicon oxynitride, silicon oxide, titanium oxide, and / or aluminum oxide.

[0142] The connection between touch driver wiring TL1 and TLp will be described in more detail later in this article.

[0143] Figure 8 It is shown Figure 5 A magnified plan view of region B. Figure 9 It is shown Figure 8 Some planar diagrams of the touch driver wiring. Figure 10 It is along Figure 9 The sectional view taken from line III-III'.

[0144] Reference Figure 8 , Figure 9 and Figure 10 The first touch driver wiring TL1 to the (p-1)th touch driver wiring TL(p-1) are connected to the touch electrode pad TP via pad electrode lines PEL and pad connection lines PCL1 to PCLp-1. Conversely, the p-th touch driver wiring TLp can be directly connected to the touch electrode pad TP without the need for pad electrode lines PEL and pad connection lines. For example, the first touch driver wiring TL1 can be connected to the pad electrode line PEL via the first pad connection line PCL1. The second touch driver wiring TL2 can be connected to the pad electrode line PEL via the second pad connection line PCL2. Furthermore, the (p-1)th touch driver wiring TL(p-1) can be connected to the pad electrode line PEL via the (p-1)th pad connection line PCLp-1. Multiple pad electrode lines PEL are connected to the touch electrode pad TP, and the first touch driver wiring TL1 to the (p-1)th touch driver wiring TL(p-1) can be connected to the touch electrode pad TP via pad electrode lines PEL and pad connection lines PCL1 to PCLp-1. For ease of description, the first touch driver wiring TL1 will be described in the following text.

[0145] The first touch driver wiring TL1 and the pad electrode line PEL can be spaced apart from each other in a plan view. For example, the first touch driver wiring TL1 and the pad electrode line PEL can be spaced apart from each other in a first direction (e.g., the DR1 direction). The first touch driver wiring TL1 and the pad electrode line PEL can be electrically connected through a first pad connection line PCL1. The first pad connection line PCL1 can extend in the first direction (e.g., the DR1 direction).

[0146] For example, the first wiring TL11 of the first touch driver wiring TL1 can contact the first pad connection line PCL1 through the first contact hole CNT1 that exposes the first end of the first pad connection line PCL1. The pad electrode line PEL can contact the first pad connection line PCL1 through the second contact hole CNT2 that exposes the second end of the first pad connection line PCL1. Therefore, the first touch driver wiring TL1 can be electrically connected to the pad electrode line PEL through the first pad connection line PCL1 (e.g., through the first contact hole CNT1 and the second contact hole CNT2), and can be electrically connected to the touch electrode pad TP through the pad electrode line PEL.

[0147] The first pad connection line PCL1 can be disposed on the second substrate SUB2. The first pad connection line PCL1 can be formed by the first touch conductive layer 610. Furthermore, the first pad connection line PCL1 can be disposed in the same layer as the first touch electrode TE described above. For example, the first pad connection line PCL1 can include the same material as the first touch electrode TE, or it can include at least one material selected from the materials chosen as the structural material of the first touch electrode TE.

[0148] The first touch driving wiring TL1 and the pad electrode line PEL can be disposed on the first pad connection line PCL1. The first touch driving wiring TL1 and the pad electrode line PEL can be formed by the second touch conductive layer 620. Furthermore, the first touch driving wiring TL1 and the pad electrode line PEL can be disposed in the same layer as the aforementioned connection electrode CE. Additionally, although not shown, touch sensing wirings RL1 to RLq can be disposed in the same layer as the aforementioned touch driving wirings TL1 to TLp, and are formed by the second touch conductive layer 620. For example, the first touch driving wiring TL1 and the pad electrode line PEL can include the same material as the connection electrode CE, or can include at least one material selected from the materials chosen as structural materials for the connection electrode CE.

[0149] According to an embodiment of the present invention, the lower surface of the pad electrode line PEL can be disposed on the upper surface of the first pad connection line PCL1.

[0150] The first touch insulating layer 510 can be disposed between the first touch driver wiring TL1 and the pad electrode line PEL and the first pad connection line PCL1.

[0151] The first touch insulating layer 510 may have a first contact hole CNT1 exposing a first end of the first pad connection line PCL1 and a second contact hole CNT2 exposing a second end of the first pad connection line PCL1. The first wiring TL11 of the first touch driving wiring TL1 can contact the first end of the first pad connection line PCL1 through the first contact hole CNT1. The pad electrode line PEL can contact the second end of the first pad connection line PCL1 through the second contact hole CNT2. Therefore, the first touch driving wiring TL1 can be electrically connected to the pad electrode line PEL through the first pad connection line PCL1.

[0152] The first pad connection line PCL1 may include a first region A1, which is the region that contacts the first wiring TL11 of the first touch driving wiring TL1. For example, the area of ​​the first region A1 may substantially correspond to the area of ​​the first contact hole CNT1. Furthermore, the first pad connection line PCL1 may include a second region A2, which is the region that contacts the pad electrode line PEL. The width of the first region A1 in a first direction (e.g., the DR1 direction) may be greater than the width of the second region A2 in the first direction (e.g., the DR1 direction). For example, the area of ​​the second region A2 may substantially correspond to the area of ​​the second contact hole CNT2. Furthermore, the area of ​​the first region A1 may be greater than the area of ​​the second region A2. For example, the area of ​​the first pad connection line PCL1 in contact with the first wiring TL11 of the first touch driving wiring TL1 may be greater than the area of ​​the first pad connection line PCL1 in contact with the pad electrode line PEL. In this case, even when the first wiring TL11 of the first touch drive wiring TL1 overlaps with the first pad connection line PCL1, the contact area between the first wiring TL11 and the first pad connection line PCL1 can be increased, thereby preventing the formation of capacitors in the corresponding area. For example, the space for accumulated charge in the area where the first wiring TL11 overlaps with the first pad connection line PCL1 can be removed, thereby preventing electrostatic defects. However, the invention is not limited thereto. For example, the first region A1 can be smaller than the second region A2.

[0153] Furthermore, the first pad connection line PCL1 may partially overlap with the second wirings TL22 to TLp2 of the second touch driver wirings TL2 to TLp2 of the p-th touch driver wirings TLp. The area where the first pad connection line PCL1 partially overlaps with each of the second wirings TL22 to TLp2 of the second touch driver wirings TL2 to TLp2 of the p-th touch driver wirings TLp may be defined as a third region A3. For example, the area of ​​the third region A3 may correspond to the area defined by the width of the second wirings TL22 to TLp2 overlapping with the first pad connection line PCL1 in a first direction (e.g., the DR1 direction) and the length in a second direction (e.g., the DR2 direction). For example, the length of the third region A3 may refer to the length of the first pad connection line PCL1 in the second direction (e.g., the DR2 direction). The width of the first region A1 in the first direction (e.g., the DR1 direction) may be greater than the width of the third region A3 in the first direction (e.g., the DR1 direction). For example, the width of the first region A1 in the first direction (e.g., the DR1 direction) may be greater than the width of the second wirings TL22 to TLp2 of the second touch driving wirings TL2 to TLp2 in the first direction (e.g., the DR1 direction). However, the invention is not limited thereto. For example, the third region A3 may have a width in the first direction (e.g., the DR1 direction) that is greater than the width of the first region A1.

[0154] As described above, the area of ​​the first region A1 of the first contact hole CNT1 in which the corresponding first wirings TL11 to TL(p-1)1 of the touch drive wirings TL1 to TL(p-1) contact with the corresponding pad connection line PCL can be increased, thereby preventing the formation of capacitors in the areas where each of the first wirings TL11 to TL(p-1)1 overlaps with each of the pad connection lines PCL. For example, space for accumulated charge can be removed from the areas where each of the first wirings TL11 to TL(p-1)1 overlaps with each of the pad connection lines PCL, thereby preventing electrostatic defects.

[0155] According to an embodiment of the invention, the first end of the pad connection line PCL, which contacts the first contact hole CNT1 and overlaps with the first region A1, may overlap with the branch point of each of the touch driving wirings TL1 to TL(p-1). The first region A1 associated with the corresponding touch driving wirings TL1 to TL(p-1) may extend in a first direction (e.g., the DR1 direction) and may be spaced apart from each other in a second direction (e.g., the DR2 direction). The second wirings (e.g., second wirings TL12 and TL22) may have a width corresponding to the width of the third region A3.

[0156] Figure 11 This is a plan view showing a portion of a touch unit TDU according to an embodiment of the present invention. Figure 12 It is along Figure 11 A sectional view taken from line IV-IV'.

[0157] Reference Figure 11 and Figure 12According to this embodiment of the present invention, each of the touch drive wirings TL1 to TL(p-1) of the display device may include a fourth region A4, which does not partially overlap with the pad connection line PCL. For example, the pad connection line PCL may not be provided in the fourth region A4. For example, the first end of the pad connection line PCL may correspond to the width of the first region A1 in a first direction (e.g., the DR1 direction). The pad connection line PCL may contact each of the touch drive wirings TL1 to TL(p-1), and the pad connection line PCL may be provided in a region including the first region A1, the second region A2, and the third region A3, but excluding the fourth region A4. Therefore, the area of ​​overlap between the pad connection line PCL and each of the touch drive wirings TL1 to TL(p-1) in a third direction (e.g., the DR3 direction) can be minimized. Therefore, the formation of capacitors due to the overlap between the pad connection line PCL and each of the touch drive wirings TL1 to TL(p-1) can be prevented. For example, the space for accumulated charge in the overlapping region of the pad connection line PCL and each of the touch drive wirings TL1 to TL(p-1) can be minimized to prevent electrostatic defects. According to an embodiment of the invention, the first end of the pad connection line PCL, which contacts the first contact hole CNT1 and overlaps with the first region A1, may overlap with the branch point of each of the touch drive wirings TL1 to TL(p-1). The first region A1 may have a width in a first direction (e.g., the DR1 direction) substantially similar to the first end of the pad connection line PCL and the first contact hole CNT1.

[0158] For example, the width of the fourth region A4 in the first direction (e.g., DR1 direction) may be greater than the width of the first region A1 in the first direction (e.g., DR1 direction). The width of the fourth region A4 in the second direction (e.g., DR2 direction) may be greater than the width of the first region A1 in the second direction (e.g., DR2 direction). Furthermore, the area of ​​the fourth region A4 may be greater than the area of ​​the first region A1. For example, the fourth region A4 may refer to a portion of the first wiring TL11 to TL(p-1)1 extending perpendicularly to the second wiring TL12 to TL(p-1)2 of the corresponding branch that does not overlap with the pad connection line PCL.

[0159] Furthermore, the width of the fourth region A4 in the first direction (e.g., the DR1 direction) is greater than the width of the second region A2 in the first direction (e.g., the DR1 direction), and the area of ​​the fourth region A4 is greater than the area of ​​the second region A2.

[0160] Additionally, the width of the fourth region A4 in the first direction (e.g., the DR1 direction) may be greater than the width of the third region A3 in the first direction (e.g., the DR1 direction). For example, the width of the fourth region A4 in the first direction (e.g., the DR1 direction) may be greater than the width of the second wirings TL22 to TLp2 of the second touch driver wiring TL2 to the p-th touch driver wiring TLp in the first direction (e.g., the DR1 direction).

[0161] The pad connection line PCL is not located in the fourth region A4, and the first touch insulating layer 510 can directly contact the second substrate SUB2 in the fourth region A4.

[0162] Embodiments of the present invention will be described below.

[0163] Figure 13 This is a plan view showing a portion of a touch unit TDU according to another embodiment of the present invention. Figure 14 It is along Figure 13 A sectional view taken by line V-V'.

[0164] Reference Figure 13 and Figure 14 The display device according to this embodiment may further include a touch signal layer (TDL).

[0165] A touch signal layer TDL can be disposed on the second substrate SUB2. The touch signal layer TDL can be composed of a first touch conductive layer 610. Furthermore, the touch signal layer TDL can be disposed in the same layer as the pad connection line PCL described above. For example, the touch signal layer TDL can include the same material as the pad connection line PCL, or can include at least one material selected from the materials described as the structural material of the pad connection line PCL. Furthermore, the touch signal layer TDL can be disposed in the same layer as the first touch electrode TE described above. For example, the touch signal layer TDL can include the same material as the first touch electrode TE, or can include at least one material selected from the materials described as the structural material of the first touch electrode TE.

[0166] Touch driver wiring TL1 to TLp can be disposed above the touch signal layer TDL. A first touch insulating layer 510 can be disposed between the touch signal layer TDL and the touch driver wiring TL1 to TLp. For ease of description, the first touch driver wiring TL1 will be described primarily below.

[0167] The touch signal layer TDL may overlap with the first touch driver wiring TL1 in a third direction (e.g., the DR3 direction). For example, the touch signal layer TDL may overlap with the first wiring TL11 of the first touch driver wiring TL1 in a third direction (e.g., the DR3 direction).

[0168] The first wiring TL11 of the first touch driving wiring TL1 may include a fifth region A5 that overlaps with the touch signal layer TDL. The first wiring TL11 of the first touch driving wiring TL1 may include a sixth region A6 that does not overlap with the touch signal layer TDL and the first pad connection line PCL1. For example, the first touch conductive layer 610 may not be disposed in the sixth region A6. The first touch conductive layer 610 is disposed in the first region A1 in which the first touch conductive layer 610 contacts the first touch driving wiring TL1 and in the fifth region A5 in which the first touch conductive layer 610 overlaps with the first touch driving wiring TL1. The first touch conductive layer 610 may not be disposed in the sixth region A6. Therefore, the area in which the first touch conductive layer 610 overlaps with the first touch driving wiring TL1 in a third direction (e.g., the DR3 direction) can be minimized. Therefore, the formation of capacitors due to the overlap of the first touch conductive layer 610 with the first touch driving wiring TL1 can be prevented. For example, the space for accumulated charge in the region in which the first touch conductive layer 610 overlaps with the first touch driving wiring TL1 can be minimized, thereby preventing electrostatic defects as described above.

[0169] The first touch conductive layer 610 is not disposed in the sixth region A6, and the first touch insulating layer 510 can directly contact the second substrate SUB2 in the sixth region A6.

[0170] The width of the fifth region A5 in the first direction (e.g., the DR1 direction) may be greater than the width of the first regions A1 to the third regions A3 in the first direction (e.g., the DR1 direction). Furthermore, the area of ​​the fifth region A5 may be greater than the area of ​​the first regions A1 to the third regions A3.

[0171] The width of the sixth region A6 in the first direction (e.g., the DR1 direction) may be greater than the width of the first regions A1 to the third regions A3 in the first direction (e.g., the DR1 direction). Furthermore, the area of ​​the sixth region A6 may be greater than the area of ​​the first regions A1 to the third regions A3.

[0172] Furthermore, the width of the fifth region A5 in the first direction (e.g., the DR1 direction) may be greater than the width of the sixth region A6 in the first direction (e.g., the DR1 direction). Additionally, the area of ​​the fifth region A5 may be greater than the area of ​​the sixth region A6.

[0173] Figure 15 This is a plan view showing a portion of a touch unit TDU according to an embodiment of the present invention. Figure 16 It is along Figure 15 A sectional view taken from line VI-VI'.

[0174] Reference Figure 15 and Figure 16The display device according to this embodiment and Figure 13 and Figure 14 The difference in the illustrated implementation is that the touch signal layer TDL is electrically connected to each of the touch driver wirings TL1 to TLp. For ease of description, the first touch driver wiring TL1 will be described primarily below.

[0175] The touch signal layer TDL and the first touch drive wiring TL1 can be in contact with each other in the fifth region A5. For example, the first touch insulating layer 510 disposed between the touch signal layer TDL and the first touch drive wiring TL1 can have a third contact hole CNT3 exposing the end of the touch signal layer TDL. The third contact hole CNT3 can be formed in the fifth region A5. The first wiring TL11 of the first touch drive wiring TL1 can contact the end of the touch signal layer TDL through the third contact hole CNT3. Therefore, the first wiring TL11 of the first touch drive wiring TL1 can be electrically connected to the touch signal layer TDL. In this case, even if the first wiring TL11 of the first touch drive wiring TL1 is partially broken due to scratches, etc., the touch signal layer TDL can maintain conductivity. Therefore, it is possible to prevent some touch electrodes in the touch unit TDU from failing to work.

[0176] The contact area between the touch signal layer TDL and the first touch driver wiring TL1 can be larger than the contact area between the first pad connection line PCL1 and the first touch driver wiring TL1.

[0177] Figure 17 This is a plan view showing a touch unit TDU according to an embodiment of the present invention.

[0178] Reference Figure 17 According to this embodiment, the touch sensor region TSA of the touch unit TDU may include a first touch sensor region TSA1, a second touch sensor region TSA2, and a third touch sensor region TSA3. The first touch sensor region TSA1 may have a rectangular shape in a plan view. The first touch sensor region TSA1 may occupy most of the touch sensor region TSA.

[0179] The second touch sensor region TSA2 and the third touch sensor region TSA3 may protrude from opposite sides of the first touch sensor region TSA1, for example, in a second direction (e.g., the DR2 direction). The second touch sensor region TSA2 may protrude from the edge of a first side of the first touch sensor region TSA1, and the third touch sensor region TSA3 may protrude from the edge of a second side of the first touch sensor region TSA1. Therefore, the touch sensor region TSA may also include a recessed region BA having a central recessed shape on one side. Furthermore, the recessed region BA may be disposed between the second touch sensor region TSA2 and the third touch sensor region TSA3 in the second direction (e.g., the DR2 direction).

[0180] Furthermore, the blank area EA can be formed outside the recessed area BA in a first direction (e.g., the DR1 direction). When the display device 10 is implemented as a mobile phone, smartphone, or tablet PC, the camera device, proximity sensor device, brightness sensor device, and iris recognition sensor device can be configured to overlap with the blank area EA. Therefore, the bezels for accommodating the camera device, proximity sensor device, brightness sensor device, and iris recognition sensor device of the mobile phone, smartphone, or tablet PC can be omitted. Therefore, the bezel located on one side of the mobile phone, smartphone, or tablet PC can be significantly reduced.

[0181] Furthermore, the second substrate SUB2 can be removed from the blank area EA. In this case, the first substrate SUB1, the thin film transistor layer TFTL, and the light-emitting element layer EML of the display unit DU can also be removed from the area overlapping with the blank area EA.

[0182] The recessed area BA of the touch sensor area TSA will be described in detail below.

[0183] Figure 18 It is shown Figure 17 A magnified plan view of region C.

[0184] Reference Figure 18 The touch electrode line TEL, the first touch electrode connection line TCL1, and the second touch electrode connection line TCL2 can be set in the recessed area BA.

[0185] The touch electrode line TEL can be connected to the first touch electrode TE located on the first side of the touch sensor area TSA.

[0186] In the plan view, the touch electrode line TEL can be spaced apart from the second wirings TL12 to TLp2 of the touch drive wirings TL1 to TLp. The spaced-apart touch electrode line TEL and the second wirings TL12 to TLp2 can be electrically connected through the first touch electrode connection line TCL1. The width of the touch electrode line TEL can be substantially the same as the width of the second wirings TL12 to TLp2.

[0187] The touch electrode line TEL and the second wiring TL12 to TLp2 can be formed by the second touch conductive layer 620. The touch electrode line TEL and the second wiring TL12 to TLp2 can be disposed in the same layer as the connection electrode CE described above. For example, the touch electrode line TEL and the second wiring TL12 to TLp2 can include the same material as the connection electrode CE, or can include at least one material selected from the materials selected as structural materials for the connection electrode CE described above.

[0188] The first end of the first touch electrode connection line TCL1 can be connected to the second wiring TL12 to TLp2 of the touch driver wiring TL1 to TLp, and the second end of the first touch electrode connection line TCL1 can be connected to the touch electrode line TEL.

[0189] The width of the first touch electrode connection line TCL1 can be greater than the width of the second wiring TL12 to TLp2 and the width of the touch electrode line TEL. However, the present invention is not limited thereto.

[0190] The first touch electrode connection line TCL1 may be formed by the first touch conductive layer 610. The first touch electrode connection line TCL1 may be disposed in the same layer as the first touch electrode TE. For example, the first touch electrode connection line TCL1 may include the same material as the first touch electrode TE, or may include at least one material selected from the materials selected as structural materials of the first touch electrode TE.

[0191] The second wiring TL12 to TLp2 and the touch electrode line TEL can be disposed on the first touch electrode connection line TCL1. The second wiring TL12 to TLp2 can be electrically connected to the first touch electrode connection line TCL1 through the fourth contact hole CNT4 exposing the first end of the first touch electrode connection line TCL1. The touch electrode line TEL can be electrically connected to the first touch electrode connection line TCL1 through the fifth contact hole CNT5 exposing the second end of the first touch electrode connection line TCL1.

[0192] The second touch electrode connection line TCL2 can connect the second touch electrode RE of the second touch sensor area TSA2 and the second touch electrode RE of the third touch sensor area TSA3. The first touch electrode connection line TCL1 and the second touch electrode connection line TCL2 can intersect each other in area C of the recessed area BA.

[0193] The second touch electrode connection line TCL2 can be disposed in a different layer than the first touch electrode connection line TCL1. The second touch electrode connection line TCL2 can be composed of a second touch conductive layer 620. The second touch electrode connection line TCL2 can be disposed in the same layer as the aforementioned connection electrode CE. For example, the second touch electrode connection line TCL2 may include the same material as the connection electrode CE, or it may include at least one material selected from the materials chosen as structural materials for the connection electrode CE.

[0194] Although embodiments of the invention have been described so far, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as set forth in the appended claims.

Claims

1. A touch unit, comprising: The first touch electrode is disposed in the touch sensor area of ​​the touch unit; A touch driving wiring is electrically connected to the first touch electrode, wherein the touch driving wiring includes a first wiring and a second wiring, the first wiring is connected to a first side of the first touch electrode, and the second wiring branches from the first wiring and is connected to a second side of the first touch electrode; The pad electrode lines are spaced apart from the touch drive wiring and are connected to the pads; and The pad connection line connects to the touch driver wiring and the pad electrode line. The pad connection lines are located in a different layer than the touch driver wiring. Wherein, the area of ​​contact between the pad connection line and the first wiring is greater than the area of ​​contact between the pad connection line and the pad electrode line.

2. The touch unit according to claim 1, wherein, The pad connection line includes a first area that contacts the first wiring, and Wherein, the width of the first region in the first direction is greater than the width of the second wiring in the first direction.

3. The touch unit according to claim 2, wherein, The pad connection line includes a second region that contacts the pad electrode line, and Wherein, the width of the first region in the first direction is greater than the width of the second region in the first direction.

4. The touch unit according to claim 3, wherein, The touch driving wiring includes first touch driving wiring and second touch driving wiring connected to different first touch electrodes in the first touch electrode. The pad connection lines include a first pad connection line and a second pad connection line, and The first pad connection line is connected to the first touch driver wiring and overlaps with at least a portion of the second touch driver wiring.

5. The touch unit according to claim 4, wherein, The first pad connection line connected to the first touch driver wiring further includes a third region, which overlaps with the second wiring of the second touch driver wiring. Wherein, the width of the first region in the first direction is greater than the width of the third region in the first direction.

6. The touch unit according to claim 5, further comprising: First touch conductive layer; A second touch conductive layer is disposed above the first touch conductive layer; as well as A touch insulating layer is disposed between the first touch conductive layer and the second touch conductive layer. The pad electrode lines include a first pad electrode line and a second pad electrode line. Wherein, the first touch electrode, the first pad connection line, and the second pad connection line are composed of the first touch conductive layer, and The first touch driving wiring, the second touch driving wiring, the first pad electrode line, and the second pad electrode line are all composed of the second touch conductive layer.

7. The touch unit according to claim 6, wherein, The touch insulating layer has a first contact hole and a second contact hole, the first contact hole exposing a first end of each of the first pad connection line and the second pad connection line, and the second contact hole exposing a second end of each of the first pad connection line and the second pad connection line. The first wiring of the first touch driver wiring and the first wiring of the second touch driver wiring are electrically connected to the first pad connection line and the second pad connection line respectively through the first contact hole, and The first pad electrode line and the second pad electrode line are electrically connected to the first pad connection line and the second pad connection line respectively through the second contact hole.

8. A touch unit, including: Multiple first touch electrodes are disposed in the touch sensor area of ​​the touch unit; Multiple touch drive wirings are electrically connected to the multiple first touch electrodes; Multiple pad electrode lines, spaced apart from the multiple touch drive wirings and connected to multiple pads; and Multiple pad connection lines are connected to the multiple touch driver wirings and the multiple pad electrode lines, and the multiple pad connection lines are disposed below the multiple touch driver wirings. Each of the plurality of touch driving wirings includes a first wiring and a second wiring. The first wiring is connected to a first side of the plurality of first touch electrodes, and the second wiring branches from the first wiring and connects to a second side of the plurality of first touch electrodes. Each of the plurality of pad connection lines includes a first area that contacts the first wiring. The first wiring includes a fourth region that does not overlap with one of the plurality of pad connection lines, and Wherein, the width of the fourth region in the first direction is greater than the width of the first region in the first direction.

9. The touch unit according to claim 8, further comprising: First touch conductive layer; A second touch conductive layer is disposed above the first touch conductive layer; as well as A touch insulating layer is disposed between the first touch conductive layer and the second touch conductive layer. Wherein, the plurality of first touch electrodes and the plurality of pad connection lines are composed of the first touch conductive layer, and The multiple touch driving wirings and the multiple pad electrode lines are formed by the second touch conductive layer.

10. The touch unit according to claim 9, wherein, The touch insulating layer has a plurality of first contact holes and a plurality of second contact holes, the plurality of first contact holes exposing a first end of each of the plurality of pad connection lines, and the plurality of second contact holes exposing a second end of each of the plurality of pad connection lines. The first wiring is electrically connected to the pad connection line through the first contact hole. The pad electrode line is electrically connected to the pad connection line through the second contact hole, and The first contact hole is formed in the first region.

11. The touch unit according to claim 10, wherein, The area of ​​the fourth region is greater than the area of ​​the first region.

12. The touch unit according to claim 11, wherein, Each of the plurality of pad connection lines has a second region that contacts the pad electrode line, and Wherein, the width of the first region in the first direction is greater than the width of the second region in the first direction.

13. The touch unit according to claim 12, further comprising: Connecting electrodes are used to connect adjacent first touch electrodes among the plurality of first touch electrodes in the first direction. The connection electrode is composed of the second touch conductive layer.

14. The touch unit according to claim 13, further comprising: Multiple second touch electrodes are spaced apart from the first touch electrode in the touch sensor region; as well as Multiple touch sensing wires are electrically connected to the multiple second touch electrodes. Wherein, the plurality of second touch electrodes are composed of the first touch conductive layer, and The multiple touch sensing wires are composed of the second touch conductive layer.

15. The touch unit according to claim 14, further comprising a touch signal layer, the touch signal layer being disposed in the same layer as the plurality of pad connection lines and spaced apart from the plurality of pad connection lines.

16. The touch unit according to claim 15, wherein, The touch signal layer is disposed below the plurality of touch driver wirings, and The touch signal layer at least partially overlaps with the first wiring in the thickness direction.

17. The touch unit according to claim 16, wherein, The first wiring is electrically connected to the touch signal layer through a third contact hole at the end of the exposed touch signal layer.

18. The touch unit according to claim 17, wherein, Each of the plurality of touch driving wirings includes a first touch driving wiring and a second touch driving wiring connected to different first touch electrodes among the plurality of first touch electrodes, and The pad connection line connected to the first touch driver wiring overlaps at least partially with the second wiring of the second touch driver wiring.

19. The touch unit according to claim 18, wherein, The pad connection line connected to the first touch driver wiring further includes a third region, which overlaps with the second wiring of the second touch driver wiring. Wherein, the width of the fourth region in the first direction is greater than the width of the third region in the first direction.

20. A display device, including: The display unit includes a display area, which includes a plurality of pixels; as well as The touch unit includes a touch sensor area that at least partially overlaps with the display area. The touch unit includes multiple first touch electrodes, multiple touch driving wirings, multiple pad electrode lines, and multiple pad connection lines. The multiple first touch electrodes are disposed in the touch sensor area. The multiple touch driving wirings are electrically connected to the multiple first touch electrodes. The multiple pad electrode lines are spaced apart from the multiple touch driving wirings and connected to multiple pads. The multiple pad connection lines are connected to the multiple touch driving wirings and the multiple pad electrode lines. The multiple pad connection lines are located below the multiple touch driver wiring lines. Each of the plurality of touch driving wirings includes a first wiring and a second wiring. The first wiring is connected to a first side of the plurality of first touch electrodes, and the second wiring branches from the first wiring and connects to a second side of the plurality of first touch electrodes. The contact area between each of the plurality of pad connection lines and the first wiring is different from the contact area between each of the plurality of pad connection lines and the pad electrode line among the plurality of pad electrode lines.

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