Capacitive touch panel

Abstract

Provided is a capacitive touch panel in which, in a touch panel having sensor electrodes formed in a mesh pattern, reduction in sensitivity due to disconnection can be prevented while suppressing generation of bubbles within a mesh. A capacitive touch panel (1) is a capacitive touch panel in which X-axis electrodes, which are formed by arranging a plurality of X-axis grids in the X-axis direction, and Y-axis electrodes, which are arranged in a matrix shape in a plan view when viewed from the touch surface of the capacitive touch panel, are laminated with an insulating layer interposed therebetween, and in which the X-axis electrodes are formed by arranging a plurality of X-axis grids in the X-axis direction and the Y-axis electrodes are formed by arranging a plurality of Y-axis grids in the X-axis direction. The Y-axis electrode is formed by arranging a plurality of Y-axis grids y1, y2 in a Y-axis direction intersecting the X-axis direction, the X-axis grids and the Y-axis grids y1, y2 are formed by a plurality of fine grids, a gap 14 is provided in a part of at least one of the grid sides in each fine grid, and the gap 14 is provided in a part of at least one of the grid sides in the X-axis grids and the Y-axis grids y1, y2. Two or more conduction paths with adjacent grids are formed along the grid edges of the fine grids.

Description

Technical Field

[0001] The present invention relates to a capacitive touch panel that detects the proximity of a user's finger or the like to any position on a touch surface (XY plane) by utilizing changes in capacitance, and more particularly to a capacitive touch panel in which sensor electrodes are provided on a glass substrate. Background Art

[0002] Projected capacitive touch panels are used as a means of input for home appliances, audiovisual equipment, PC / OA equipment, industrial machinery, and other electronic devices. These panels detect touch locations by reading changes in capacitance using sensor electrodes arranged in a predetermined pattern along the X and Y axes.

[0003] For example, as a pattern of sensor electrodes, a pattern in which diamond-shaped grids are arranged in the vertical (Y) and horizontal (X) directions (hereinafter also referred to as a diamond pattern) is known (see Patent Document 1). In this touch panel, in a top view observed from the touch surface, grids arranged along the X-axis direction (X-axis grid) and grids arranged along the Y-axis direction (Y-axis grid) are arranged in a matrix. The X-axis grid and the Y-axis grid are each formed with a metal thin film composed of a finer grid. In this touch panel, a structure is formed in which the X-axis electrodes and the Y-axis electrodes are stacked with a transparent insulating layer therebetween so that the intersection of the X-axis electrodes and the Y-axis electrodes can be electrically insulated.

[0004] As a method for forming a stacked structure such as the above-mentioned X-axis electrode, insulating layer, and Y-axis electrode, there are the following methods: (1) a method of forming a stacked structure by applying a transparent liquid insulating material between the X-axis electrode and the Y-axis electrode on a single glass substrate; (2) a method of forming a stacked structure by forming the X-axis electrode and the Y-axis electrode on separate glass substrates and bonding them together using an insulating material such as an optical adhesive film (OCA) or an optical resin (OCR).

[0005] Furthermore, projection-type touch panels, because they are placed on the front surface of a liquid crystal display, require that the sensor electrode wiring be difficult to discern. For example, Patent Document 2 proposes a technical solution that, when the X-axis electrodes and Y-axis electrodes are superimposed, obscures the wiring connecting adjacent X-axis grids in the X-axis direction and the wiring connecting adjacent Y-axis grids in the Y-axis direction (see Patent Document 2).

[0006] according to Figure 12 The structure of the connection wiring of Patent Document 2 will be described. Figure 12 An enlarged schematic diagram showing a state where the X-axis electrode 31 and the Y-axis electrode 32 are superimposed. Figure 12As shown, the X-axis grids x1 and x2 and the Y-axis grids y1 and y2 are formed by a plurality of fine grids. Furthermore, the X-axis grid x1 and the X-axis grid x2 are connected via a connection wiring 33 formed by edges parallel to the grid edges of the fine grids. The Y-axis grid y1 and the Y-axis grid y2 are connected via a connection wiring 35 formed by edges parallel to the grid edges of the fine grids.

[0007] Furthermore, the X-axis grids x1 and x2 have a defect 34 at a location overlapping with the connection wiring 35 of the Y-axis electrode 32 in the stacking direction. This defect 34 is formed by a portion of the mesh edge of the fine grid being lost. The Y-axis grids y1 and y2 have a defect 36 at a location overlapping with the connection wiring 33 of the X-axis electrode 31 in the stacking direction. This defect 36 is formed by a portion of the mesh edge of the fine grid being lost.

[0008] Prior art literature

[0009] Patent Literature

[0010] Patent Document 1: International Publication No. 2015 / 137477

[0011] Patent Document 2: Japanese Patent Application Laid-Open No. 2020-166705 Summary of the Invention

[0012] Technical issues to be solved by the invention

[0013] However, regarding the method of forming a stacked structure such as an X-axis electrode, an insulating layer, and a Y-axis electrode, in either of the above methods (1) and (2), if the fine mesh constituting the X-axis grid and the Y-axis grid is closed when forming the insulating layer, the unevenness (height difference) of the metal film may cause the air release channel to disappear, and bubbles may be trapped inside the fine mesh. Then, these bubbles may cause the touch panel to malfunction or malfunction. On the other hand, as a touch panel, it is necessary to prevent sensitivity reduction caused by wiring disconnection, etc.

[0014] In addition, Figure 12 In the connection method shown, a missing portion (blank portion) is formed in one sensor electrode and the connection wiring of the other sensor electrode is passed through the missing portion, thereby making the wiring pattern uniform, achieving more uniform transmittance and reflectance in the entire sensor section, and suppressing visibility. However, when connecting the X-axis grids and the Y-axis grids, Figure 12 The conventional connection method shown above may cause a decrease in sensitivity due to wiring disconnection, and it is generally believed that there is room for further improvement.

[0015] The present invention was developed in light of these circumstances, and its object is to provide a capacitive touch panel having sensor electrodes formed in a grid pattern, capable of preventing sensitivity reduction due to, for example, wire breakage. Specifically, the first invention described below aims to suppress the generation of bubbles within the grid and prevent sensitivity reduction due to wire breakage, while the second invention described below aims to suppress visibility of the sensor electrodes and prevent sensitivity reduction due to, for example, wire breakage.

[0016] Technical solutions to solve technical problems

[0017] A first aspect of the present invention is a capacitive touch panel in which X-axis electrodes and Y-axis electrodes are stacked with an insulating layer interposed therebetween and arranged in a matrix in a plan view from a touch surface of the capacitive touch panel. The X-axis electrodes are formed by arranging a plurality of X-axis grids in the X-axis direction, and the Y-axis electrodes are formed by arranging a plurality of Y-axis grids in a Y-axis direction intersecting the X-axis direction. The capacitive touch panel is characterized in that the X-axis grids and the Y-axis grids are formed by a plurality of fine grids, each of the fine grids having a gap provided in a portion of at least one of the grid edges, and the X-axis grids and the Y-axis grids have two or more conductive paths formed along the grid edges of each of the fine grids to connect to adjacent grids.

[0018] In the first invention, the term "conductive paths" with adjacent grids in the X-axis and Y-axis grids refers to, for example, paths that provide conductivity from one X-axis grid to the other X-axis grid adjacent in the X-axis direction in any X-axis grid. More specifically, paths that provide conductivity from a connection point of a wiring line connecting one X-axis grid to a connection point of a wiring line connecting the other X-axis grid in any X-axis grid. The same applies to the Y-axis grid. Furthermore, "forming two or more conductive paths" means ensuring two or more paths (excluding intersections) as conductive paths with adjacent grids in the X-axis and Y-axis grids, where wiring lines do not overlap.

[0019] The conductive paths in the X-axis grid and the Y-axis grid include a path formed by two sides of a frame line forming part of an outer contour and a path passing through an internal wiring formed by mesh sides of the fine grid located inside.

[0020] The present invention is characterized in that the gaps are respectively provided in the fine meshes located on both sides of the internal wiring.

[0021] The X-axis grid and the Y-axis grid are characterized in that they include fine grids having the gaps provided at two locations.

[0022] In the X-axis grid and the Y-axis grid, the gap is provided in at least one of the four sides of the frame lines constituting the outer outline.

[0023] The conductive paths in the X-axis grid and the Y-axis grid include a path formed by two sides of frame lines forming a portion of an outer contour, and a path passing through internal wiring formed by mesh edges of the fine mesh located inside. The X-axis grid and the Y-axis grid include fine meshes having the gaps provided at two locations as the fine meshes. In the X-axis grid and the Y-axis grid, the gaps are provided in at least one of the four sides of the frame lines forming the outer contour.

[0024] A second aspect of the present invention is a capacitive touch panel in which X-axis electrodes and Y-axis electrodes are stacked with an insulating layer interposed therebetween and arranged in a matrix in a plan view viewed from a touch surface of the capacitive touch panel. The X-axis electrodes are formed by arranging a plurality of X-axis grids in the X-axis direction, and the Y-axis electrodes are formed by arranging a plurality of Y-axis grids in a Y-axis direction intersecting the X-axis direction. The capacitive touch panel is characterized in that the X-axis grids and the Y-axis grids are formed by a plurality of fine grids, each grid in the X-axis electrodes and the Y-axis electrodes is connected to an adjacent grid via two or more connecting wirings, the two or more connecting wirings being formed by sides parallel to grid sides of the fine grids, and each grid has a defect portion at a location overlapping with the connecting wiring of the other electrode in the stacking direction, the defect portion being formed by at least a portion of a grid side of the fine grid being defective.

[0025] In the second invention, connecting adjacent meshes via two or more connecting wirings means ensuring two or more non-overlapping conductive paths (excluding intersections) as wiring patterns connecting X-axis meshes and Y-axis meshes.

[0026] The feature is that the connection wirings in the X-axis electrodes and the Y-axis electrodes are provided so as to overlap with, rather than be parallel to, the mesh sides of the fine mesh of the counterpart electrode in a stacking direction.

[0027] The feature is that, in the X-axis electrodes and the Y-axis electrodes, the two or more connection wirings are provided line-symmetrically with respect to a center line of each grid of the electrodes in an arrangement direction.

[0028] The invention is characterized in that, in one of the X-axis electrode and the Y-axis electrode, the two or more connection wirings are provided in a grid pattern so as to connect opposing vertices of adjacent grids.

[0029] It is characterized in that, at the above-mentioned vertex portion, the ends of a pair of frame lines that constitute the outline of each grid and are arranged in a manner close to each other are not connected to each other but are separated from each other, the end of one of the pair of frame lines is connected to the connecting wiring of one of the above-mentioned two or more connecting wirings, and the end of the other frame line is connected to the connecting wiring of the other side.

[0030] It is characterized in that, in the above-mentioned vertex portion, the connection boundary portion between the end portion of the frame line on one side and the connection wiring on one side and the connection boundary portion between the end portion of the frame line on the other side and the connection wiring on the other side are formed into arc-shaped shapes that are bent in a manner that is close to each other.

[0031] Effects of the Invention

[0032] A first aspect of the present invention is a capacitive touch panel comprising X-axis electrodes and Y-axis electrodes stacked with an insulating layer interposed therebetween. The X-axis electrodes are formed by arranging a plurality of X-axis grids in the X-axis direction, and the Y-axis electrodes are formed by arranging a plurality of Y-axis grids in the Y-axis direction. The X-axis grids and the Y-axis grids are formed by a plurality of fine grids. A gap is provided in a portion of at least one of the grid edges of each fine grid. Two or more conductive paths are formed along the grid edges of each fine grid, connecting the X-axis grid and the Y-axis grid to adjacent grids. Therefore, an air release path is ensured at least in one location in each fine grid. By ensuring two or more conductive paths, it is possible to prevent sensitivity reduction due to disconnection while suppressing the generation of bubbles within the grid.

[0033] The X-axis grid and the Y-axis grid have fine grids with gaps provided at two locations, and thus it is easier to suppress the generation of bubbles in the grids.

[0034] A second aspect of the present invention is a capacitive touch panel comprising X-axis electrodes and Y-axis electrodes stacked with an insulating layer interposed therebetween, wherein the X-axis electrodes are formed by arranging a plurality of X-axis grids in the X-axis direction, and the Y-axis electrodes are formed by arranging a plurality of Y-axis grids in the Y-axis direction, wherein the X-axis grids and the Y-axis grids are formed by a plurality of fine grids, and each grid in the X-axis electrodes and the Y-axis electrodes is connected to an adjacent grid via two or more connecting wirings, wherein the two or more connecting wirings are formed by sides parallel to grid sides of the fine grids, and each grid has a defective portion at a location overlapping with a connecting wiring of an electrode on the other side in the stacking direction, wherein the defective portion is formed by at least a portion of a grid side of the fine grid being defective, thereby suppressing visibility of the sensor electrodes and preventing sensitivity reduction due to disconnection, etc.

[0035] The connecting wiring for the X-axis and Y-axis electrodes is arranged to overlap, rather than overlap, parallel to the mesh edges of the other electrode's fine mesh in the stacking direction. This prevents disconnection while also preventing, for example, increased capacitive coupling between the electrodes and reduced sensitivity due to the parallel overlap of the connecting wiring with the mesh edges of the fine mesh.

[0036] In the X-axis electrodes and Y-axis electrodes, two or more connecting wirings are arranged to be line-symmetrical about the center line of each grid of the electrode in the arrangement direction, so while implementing a countermeasure for wire breakage, it is easy to achieve more uniform transmittance and reflectivity in the entire sensor part, and it is easy to further suppress visibility.

[0037] In one of the X-axis electrodes and the Y-axis electrodes, two or more connecting wires are arranged in a grid pattern to connect the opposing vertices of adjacent grids. At the vertices, the ends of a pair of frame wires in each grid are separated from each other and are not connected. The end of one of the pair of frame wires is connected to one of the two or more connecting wires, and the end of the other frame wire is connected to the other connecting wire. Therefore, the two or more connecting wires do not intersect at the vertices, but are independently connected to the adjacent grids, thereby making the disconnection countermeasure more effective.

[0038] In addition, at the vertex portion, the connecting boundary portion on one side and the connecting boundary portion on the other side, which are separated from each other, are formed into an arc shape in a manner that is close to each other, so it is easier to suppress visibility than when they are formed into a straight line along the X-axis direction or the Y-axis direction, for example. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 1 and 2 are a plan view and a side view showing an example of a capacitive touch panel of the present invention.

[0040] Figure 2 To show Figure 1 Schematic diagram of an enlarged cross section of a touch panel.

[0041] Figure 3 It is an enlarged view for explaining the state in which the X-axis electrodes and the Y-axis electrodes are stacked.

[0042] Figure 4 A diagram showing a wiring pattern in a conventional touch panel.

[0043] Figure 5 This is a diagram showing an example of a wiring pattern in the touch panel of the first invention.

[0044] Figure 6 This is a diagram showing another example of the wiring pattern in the touch panel of the first invention.

[0045] Figure 7This is a diagram showing another example of the wiring pattern in the touch panel of the first invention.

[0046] Figure 8 A diagram showing an example of a wiring pattern of X-axis electrodes in a touch panel according to the second invention.

[0047] Figure 9 This is a diagram showing an example of a wiring pattern of Y-axis electrodes in a touch panel according to the second invention.

[0048] Figure 10 A diagram for explaining the structure of the apex portion of the Y-axis mesh in the Y-axis electrode.

[0049] Figure 11 This is a diagram showing an example of a state in which X-axis electrodes and Y-axis electrodes are superimposed on each other in the touch panel of the second invention.

[0050] Figure 12 This is a diagram showing an example of a state in which X-axis electrodes and Y-axis electrodes are superimposed on each other in a conventional touch panel.

[0051] Reference numerals

[0052] 1: Capacitive touch panel; 2: First glass substrate; 3: X-axis electrode; 4: Second glass substrate; 5: Y-axis electrode; 6: Insulation layer; 7: Wiring; 8: External connection terminal; 9: Flexible printed wiring board (FPC); 11: Protrusion; 12: Connection wiring; 13: Connection wiring; 14: Gap; 15: Fine grid; 16: Defective portion; 17: Defective portion; x1, x2: X-axis grid; y1, y2: Y-axis grid; p, q: Connection points; Gx, Gy: Frame lines; Gy 1A 、Gy 1B 、Gy 1C 、Gy 1D : frame line; R1-R4: redundant wiring; L1: first path; L2: second path; 21: protrusion; 22A, 22B: connection wiring; 23: missing portion; 24A, 24B: connection wiring; 25: missing portion; 26A, 26B: connection wiring; 27A, 27B: connection wiring; P, Q: connection boundary; Gx 1A 、Gx 1B 、Gx 2A 、Gx 2B : Frame line; Gy 1A 、Gy 1B 、Gy 2A 、Gy 2B : frame line. DETAILED DESCRIPTION

[0053] according to Figure 1 An example of the capacitive touch panel of the present invention will be described. Figure 1(a) is a schematic top view of a capacitive touch panel. Figure 1 (b) is its side view. Figure 1 As shown in (b), the capacitive touch panel 1 includes a first light-transmitting glass substrate 2 and a second light-transmitting glass substrate 4, wherein the first glass substrate 2 has an X-axis electrode 3 for detecting in the X-axis direction, and the second glass substrate 4 has a Y-axis electrode 5 for detecting in the Y-axis direction. The capacitive touch panel 1 has a laminated structure in which the first glass substrate 2 and the second glass substrate 4 are bonded together. The surface of the first glass substrate 2 is a touch surface 2a, and the X-axis electrode 3 is provided on the opposite surface 2b of the touch surface 2a. In addition, a Y-axis electrode 5 is provided on one surface of the second glass substrate 4. The X-axis electrode 3 and the Y-axis electrode 5 are sandwiched between the two glass substrates in an opposing manner. Since the glass substrate is not located between the two electrodes, the gap between the electrodes is greatly reduced compared to the case where the glass substrate is located between the two electrodes.

[0054] The X-axis electrodes 3 and the Y-axis electrodes 5 are connected to terminals 8 for electrical connection to external wiring via lead-out wiring 7. For example, a flexible printed wiring board (FPC) 9 is connected as external wiring, and a control unit (not shown) for touch detection is connected via FPC 9. In addition, to improve environmental resistance, a metal lead frame may be provided in place of FPC 9. The capacitive touch panel of the present invention utilizes the property that electrostatic coupling is generated between the sensor electrodes and the finger, thereby changing the capacitance of the electrodes. As the specific detection process in the control unit, a known process can be adopted.

[0055] Figure 2 A schematic diagram showing an enlarged cross section of the panel is shown. Figure 2 2 shows a structure in which two glass substrates are stacked to sandwich the sensor portions therebetween as an example, but the present invention is not limited thereto. X-axis electrodes and Y-axis electrodes may be formed on one glass substrate.

[0056] like Figure 2 As shown, the X-axis electrode 3 includes an intermediate layer 3b formed on the surface of the first glass substrate 2 opposite the touch surface 2a, and a sensor electrode 3a formed thereon, made of a metal thin film. Furthermore, the Y-axis electrode 5 includes a sensor electrode 5a formed on one surface (the first glass substrate side) of the second glass substrate 4, made of a metal thin film, and an intermediate layer 5b formed thereon. When viewed from the touch surface 2a, each electrode is formed so that the metal thin film is located below the intermediate layer. This reduces the reflectivity of visible light and ensures visibility.

[0057] The metal thin films constituting the sensor electrodes 3a and 5a are formed by known thin film forming methods using materials such as aluminum (Al), Al alloy, niobium, molybdenum, gold, silver, and copper. Among them, Al thin films are preferably used due to their excellent environmental resistance and low cost.

[0058] The intermediate layers 3b and 5b are thin films containing at least one metal selected from (1) Cr, Mo, and W. In addition, the intermediate layers 3b and 5b are layers (black layers) that appear black due to the interference of visible light and absorb incident light. From the touch surface 2a, the switch portion appears black, which can suppress reflection. Similar to the formation of the above-mentioned Al thin film, the intermediate layer can be formed by sputtering, etc. In addition, the intermediate layer preferably contains a predetermined amount of at least one oxide selected from (2) Al oxide (Al2O3, etc.) and Ti oxide (TiO2, etc.). By containing a predetermined amount of these oxides, the reflectivity is further reduced. As the intermediate layer, a mixed layer of Mo and Al2O3 is more preferred. In addition, the film thickness of the intermediate layer is preferably 5nm to 500nm, and more preferably 20nm to 200nm.

[0059] The first and second glass substrates 2 and 4 are translucent insulating substrates. Soda-lime glass, quartz glass, borosilicate glass, or alkali-free glass containing no alkaline components can be used. Soda-lime glass is preferred because it has high transmittance and is very inexpensive, as it is commonly used in window glass for building materials. Each glass substrate has a thickness of approximately 0.5 to 5 mm, preferably approximately 0.5 to 3.0 mm.

[0060] exist Figure 2 Insulating layer 6 is formed between the X-axis electrode 3 and the Y-axis electrode 5—more precisely, between the X-side sensor electrode 3a and the Y-side intermediate layer 5b—to insulate the sensor electrodes. The thickness of the insulating layer is preferably 50 μm to 500 μm. If the insulating layer is thicker than 500 μm, the gap between the sensor electrodes becomes larger, resulting in a difference in sensitivity between the X-axis and Y-axis electrodes.

[0061] In addition, Figure 2 In the embodiment, the X-axis electrodes are provided on the first glass substrate on the touch surface side. However, the Y-axis electrodes may be provided on the first glass substrate and the X-axis electrodes may be provided on the second glass substrate.

[0062] exist Figure 1 In (a), each electrode 3, 5 is patterned in a rhombus pattern. Specifically, the X-axis electrode 3 has a plurality of rhombus-shaped X-axis grids x1, x2 arranged in a straight line along the X-axis direction (see Figure 3 ). In addition, the Y-axis electrode 5 has a plurality of rhombus-shaped Y-axis grids y1 and y2 arranged in a straight line along the Y-axis direction orthogonal to the X-axis direction (see Figure 3 ). The X-axis electrodes 3 and the Y-axis electrodes 5 are arranged at positions that do not overlap when viewed from the XY plane (in a top view), and the X-axis grid and the Y-axis grid are arranged in a matrix.

[0063] The following describes details of each sensor electrode in the capacitive touch panel of the first invention.

[0064] Figure 3 An enlarged schematic diagram showing the stacking state of the X-axis electrodes and the Y-axis electrodes. Figure 3 As shown, the X-axis grids x1 and x2 have four-sided frame lines Gx that form their outer contours. Within the area enclosed by these frame lines Gx, multiple finer meshes (microgrids) are formed. Similarly, the Y-axis grids y1 and y2 have four-sided frame lines Gy that form their outer contours. Within the area enclosed by these frame lines Gy, multiple microgrids are formed. Furthermore, in the X-axis grids x1 and x2 and the Y-axis grids y1 and y2, the frame lines Gx and Gy and their internal wiring are formed by the mesh edges of the microgrids.

[0065] The fine mesh section is formed by overlapping the sensor electrodes and the intermediate layer in the above order. The openings between the meshes are areas where neither the sensor electrodes nor the intermediate layer are formed. Because the mesh section is extremely fine, it appears transparent and visible to the naked eye. The mesh section typically has a line width W of 3μm to 50μm and a line pitch P of approximately 0.2mm to 1mm.

[0066] exist Figure 3 In the Y-axis grids y1 and y2, protrusions 11 are provided, projecting outward from the four sides of the frame lines Gy. These protrusions 11 are arranged as extensions of the fine mesh edges and are parallel to them. These protrusions 11 are designed to fill the gaps between the X-axis grid lines Gx and the Y-axis grid lines Gy. This ensures that the transmittance of the gaps and that of the diamond-shaped grids are approximately the same, making the gaps less noticeable.

[0067] like Figure 3 As shown, the X-axis grid x1 and the X-axis grid x2 are connected via a connection wiring 12 formed by edges parallel to the grid edges of the fine grid. The connection wiring 12 is set asymmetrically with respect to the center line of the X-axis grid in the X-axis direction. In addition, the Y-axis grid y1 and the Y-axis grid y2 are connected via a connection wiring 13 formed by edges parallel to the grid edges of the fine grid. The connection wiring 13 is formed using a part of the protrusion 11 and is set asymmetrically with respect to the center line of the Y-axis grid in the Y-axis direction. Figure 3 As shown, by forming the connection wiring 12 and 13 with the edges parallel to the mesh edges of the fine mesh, these connection wirings are made inconspicuous. Figure 3 For example, the following structure can also be used. Figures 8 to 11 structure.

[0068] In addition, Figure 3In the embodiment, the X-axis grids x1 and x2 have a defective portion 16 at a location overlapping with the connection wiring 13 of the Y-axis electrode 5 in the stacking direction. The defective portion 16 is formed by a portion of the grid edge of the fine grid being missing. In this case, the defective portion 16 is provided on the frame line Gx. In addition, the Y-axis grids y1 and y2 have a defective portion 17 at a location overlapping with the connection wiring 12 of the X-axis electrode 3 in the stacking direction. The defective portion 17 is formed by a portion of the grid edge of the fine grid being missing. In this way, by adopting a structure in which the X-axis electrode 3 and the Y-axis electrode 5 do not overlap as much as possible in the stacking direction, it is possible to improve detection accuracy and achieve more uniform transmittance and reflectivity in the entire sensor unit. In addition, the protrusion 11 and the connection wiring 12 and 13 are made of a metal thin film in the same manner as the structure of the fine grid. Specifically, they are composed of the above-mentioned sensor electrode and the intermediate layer.

[0069] Here, the insulating layer 6 (see Figure 2 ) is formed by the above-mentioned method (1) or (2). However, when attaching OCA or filling OCR, the unevenness (height difference) of the metal film may cause the air release path to disappear in the fine mesh, and bubbles may be trapped inside the fine mesh. Therefore, in the past, gaps for air evacuation were provided in each grid of the X-axis grid and the Y-axis grid to prevent the interior of the fine mesh from being blocked. Figure 4 An example of this method is shown below.

[0070] Figure 4 A portion of the Y-axis grid y1 and the Y-axis grid y2 is shown. In this figure, the conductive path is shown thicker than other wirings to make it easier to see the conductive path, but the actual thickness of the wiring is the same as that of the other wirings. Figure 4 Omitted Figure 3 The structure of the protrusion and the defect shown in FIG. Figures 5 to 7 The same is true.

[0071] exist Figure 4 In the Y-axis grid y1, the frame line Gy is formed by four sides. 1A ~Frame line Gy 1D A plurality of fine grids are formed in the enclosed area. Specifically, there are 12 fine grids arranged along the a direction parallel to one direction of the grid edge, and 12 fine grids arranged along the b direction intersecting the a direction and parallel to the other direction of the grid edge, forming a total of 144. Moreover, a gap 14 is formed in each fine grid. The gap 14 is formed by cutting off a portion of the grid edge extending along the b direction of each fine grid. In addition, the frame line Gy 1D It is also formed discontinuously due to the gap 14. On the other hand, the mesh sides of each fine mesh extending in the a direction are continuous wiring.

[0072] exist Figure 4In the case of a wiring pattern, in the Y-axis grid y1, the internal wiring is not connected, and there is only one conductive path from the connection point p of one connection wiring 13 (left side of the figure) to the connection point q of the other connection wiring 13 (right side of the figure). This conductive path L is defined by the frame lines Gy on both sides. 1A 、Gy 1B Specifically, the frame line Gy extending from the connection point p in the direction b is 1A and from the frame line Gy 1A The frame line Gy extending from the end of the connection point q along the direction a 1B constitute.

[0073] However, in Figure 4 In the wiring pattern, for example, when the frame line Gy 1A or frame line Gy 1B If a wire break occurs, there's a risk that the wire will no longer be able to conduct electricity to the Y-axis grid in front of it, rendering the Y-axis grid inoperative. In contrast, in the first invention, gaps are provided between each fine grid in the X-axis grid and the Y-axis grid, and two or more conductive paths are ensured along the grid edges of each fine grid, connecting the grid to adjacent grids.

[0074] Figure 5 FIG. 1 shows a Y-axis grid wiring pattern of one embodiment of the touch panel of the first invention. Figure 5 As shown in FIG. 1 , each fine grid of the Y-axis grid y1 has a gap 14 in a portion of at least one of the grid edges. The gap 14 is formed by cutting off a portion of the grid edge extending in the b direction. In this case, the four sides of each fine grid are not closed, and a gap 14 is provided in at least one of the four sides. In addition, Figure 5 in Figure 4 On the basis of the wiring pattern of the present invention, redundant wiring R1 to R4 is added, thereby forming two or more conductive paths in the Y-axis grid y1. In addition, the redundant wiring referred to in this article refers to the addition of redundant wiring R1 to R4 in the Y-axis grid y1. Figure 4 The continuous wiring portion is formed by connecting the unconnected portion (the portion of the gap 14) in the wiring pattern. 1D Also serves as redundant wiring R4.

[0075] exist Figure 5 In the example, redundant wirings R1 to R4 extend in a straight line along the direction b, and the opposing frame lines Gy 1B and frame line Gy 1C Furthermore, the redundant wirings R1 to R4 are arranged parallel to each other and at equal intervals. Specifically, three fine grids are arranged between the redundant wirings adjacent to each other in the a direction. Figure 5In the embodiment, there is no particular limitation on the spacing between redundant wirings (equivalent to the number of fine grids), but it is preferable to configure two or more fine grids between redundant wirings, and more preferably to configure three or more fine grids. Figure 5 As shown, for example, in a configuration in which three fine meshes are arranged between redundant wirings, a fine mesh is formed in which gaps 14 are provided at two locations for each fine mesh (for example, Figure 5 (b) The fine mesh 15) results in an easier suppression of the generation of bubbles within the mesh.

[0076] exist Figure 5 In the Y-axis grid y1, the conductive paths include the first path and the second path whose wiring does not overlap with each other (except for the intersection). 1A 、Gy 1B When the constructed path is referred to as the first path L1, a path in which wiring does not overlap with the first path L1 is referred to as the second path.

[0077] exist Figure 5 In the example, as the second path, a path is formed that passes through the internal wiring formed by the mesh edge of the fine mesh located inside. For example, as shown by the arrow in the figure, a path is formed from the connection point p through the frame line Gy 1C , redundant wiring R2, wiring a1 extending in the a direction, and frame wire Gy 1D The path to the connection point q is referred to as the second path L2. The redundant wiring R2 and the wiring a1 correspond to the internal wiring in the second path L2.

[0078] In addition, Figure 5 In the example, the second path is not limited to the above-mentioned path, but can include a path passing through other redundant wiring (R1, R3, etc.), a path passing through other wiring extending in the a direction, a frame line Gy formed by two sides of a part of the outer contour of the Y-axis grid y1, and a path passing through other redundant wiring (R1, R3, etc.). 1C , Gy 1D As a measure against disconnection, it is preferable to provide redundant wiring so that a plurality of paths can be constructed as the second path.

[0079] Furthermore, even in a wiring pattern provided with redundant wiring for forming a second path, according to the first invention, for example, Figure 5 As shown in (b), gaps 14 are also provided in each fine mesh located on both sides of the redundant wiring R1 (internal wiring constituting the second path), thereby ensuring multiple conductive paths while suppressing the generation of bubbles.

[0080] The cutoff distance (opening distance) of the mesh side of the gap 14 is not particularly limited, but is preferably 20 μm to 50 μm. In terms of the length of one side of the mesh side, it is preferably 1 / 20 to 1 / 5 of the length of one side of the mesh side, and more preferably 1 / 10 to 1 / 6 of the length of the mesh side.

[0081] In addition, the gaps 14 in the fine mesh are preferably formed in a direction (in one direction) with respect to the mesh edge. Figure 5 The gaps 14 between adjacent fine cells in the direction a are arranged in a straight line along this direction. This facilitates smooth air flow between the fine cells whose internal spaces are connected during roller processing, making it easier to suppress the generation of bubbles.

[0082] Like this, in Figure 5 In the wiring pattern, even if, for example, the frame line Gy of the Y-axis grid y1 1A and frame line Gy 1B Even if a disconnection occurs in the first path, conduction to the Y-axis grid y2 can be ensured through the second path as a detour path, thereby preventing a decrease in sensitivity.

[0083] Furthermore, there are no particular restrictions on the number, location, and arrangement of redundant wiring.

[0084] For example, in Figure 5 In the embodiment, redundant wiring R1 to R4 are each composed of one straight line, but they may also be composed of two straight lines, for example Figure 6 The figure is composed of a combination of multiple straight lines. Figure 6 For example, redundant wiring R1 is constructed by connecting four straight sections extending in the b-direction, with each straight section interlaced with a fine mesh. Furthermore, each straight section connects three mesh edges of a fine mesh. The same applies to redundant wiring R2 and R3. Furthermore, multiple fine meshes are arranged between adjacent redundant wirings in the a-direction.

[0085] exist Figure 6 In the example, the first and second paths are also provided as conductive paths in the Y-axis grid y1. 1A 、Gy 1B When the constructed path is the first path L1, for example, as shown by the arrow in the figure, a path is formed from the connection point p through the frame line Gy 1C , redundant wiring R2, wiring a2 extending in the direction a, redundant wiring R3, wiring a3 extending in the direction a, and frame wire Gy 1D The path to the connection point q is referred to as the second path L2. Alternatively, another path may be used as the second path.

[0086] Alternatively, as another wiring pattern, a gap may be provided in at least one of the four frame lines forming the outer contour in each of the X-axis grid and the Y-axis grid. This can easily suppress the generation of bubbles that accumulate in the frame line portion.

[0087] For example, in Figure 7 In the wiring pattern, the frame line Gy of the Y-axis grid y1 1A ~Gy 1D The frame line Gy 1D A gap 14 is provided. In the Y-axis grid y1, redundant wirings R1 and R2 are provided. For example, a second path L2 is formed as a path passing through these redundant wirings R1 and R2. The redundant wiring R1 extends along the b direction, and the frame line Gy 1C It is connected to the wiring a4 in the middle. In addition, the redundant wiring R2 constitutes the frame line Gy 1D A portion of the wiring a4 extends along the direction b and connects the wiring a4 and the connection point q.

[0088] In the above Figures 5 to 7 The Y-axis grid is described in the above, and the X-axis grid can also adopt the same structure. In addition, the X-axis grid and the Y-axis grid can be used as needed. Figure 3 The structure of the protrusion and the defective portion described in .

[0089] The structure of the capacitive touch panel of the first invention is not limited to the structure described in the drawings.

[0090] The following uses Figures 8 to 11 , details of each sensor electrode in the capacitive touch panel of the second invention will be described. Note that descriptions of portions overlapping with those of the first invention will be partially omitted.

[0091] Figure 8 An example of the wiring pattern of the X-axis electrodes is shown. The X-axis grids x1 and x2 have four-sided frame lines Gx that constitute their outer contours. Within the area surrounded by these frame lines Gx, a plurality of finer grid-like portions (fine grids) are formed. For example, in the X-axis grid x1, the frame line Gx among the four-sided frame lines Gx is 1A and frame line Gx 1B A pair of frame lines on the side facing the X-axis grid x2 are arranged close to each other. In addition, for the fine grid, the above-mentioned line width W and line pitch P can be adopted as appropriate.

[0092] exist Figure 8In the example, the X-axis grids x1 and x2 are provided with protrusions 21 protruding outward from the four-side frame lines Gx. The protrusions 21 are provided as extensions of the grid edges of the fine grid and are formed parallel to the grid edges of the fine grid. The protrusions 21 are provided to fill the gap formed between the frame lines Gx of the X-axis grid and the frame lines Gy of the Y-axis grid (see Figure 11 ). Accordingly, the transmittance of the gap portion and the portion of each rhombus mesh is made approximately the same, making the gap inconspicuous.

[0093] like Figure 8 As shown in FIG. 1 , the X-axis grid x1 and the X-axis grid x2 adjacent to each other in the X-axis direction are connected by two connecting wires 22A and 22B. The connecting wires 22A and 22B are formed by sides (e.g., two sides) parallel to the grid sides of the fine grid. Figure 8 , formed by connecting the extended lines of the mesh edges of the fine mesh of X-axis grid x1 and the extended lines of the mesh edges of X-axis grid x2. In this case, a portion of connecting wiring 22A and 22B can also be considered a protrusion. Furthermore, protrusion 21 and connecting wiring 22A and 22B (and also 24A, 24B, 26A, 26B, 27A, and 27B, described later) are made of a metal thin film, similar to the structure of the fine mesh. Specifically, they are composed of the aforementioned sensor electrodes and an intermediate layer.

[0094] One end of the connection wiring 22A is connected to the frame line Gx of the X-axis grid x1. 1A , the other end is connected to the frame line Gx of the X-axis grid x2 2A In addition, one end of the connection wiring 22B is connected to the frame line Gx of the X-axis grid x1. 1B , the other end is connected to the frame line Gx of the X-axis grid x2 2B In this case, in each X-axis grid x1, x2, the frame line Gx 1A 、Gx 1B 、Gx 2A 、Gx 2B Therefore, even if a disconnection occurs in one of the connection wirings 22A and 22B, conduction from the X-axis grid x1 to the X-axis grid x2 can be achieved through the other connection wiring, thereby preventing a decrease in sensitivity.

[0095] like Figure 8 As shown, in the X-axis electrode 3 , the connection wirings 22A and 22B are provided line-symmetrically with respect to the center line Ox of the X-axis grids x1 and x2 in the arrangement direction (X-axis direction).

[0096] In addition, the X-axis grids x1 and x2 are connected to the other-side electrodes (Y-axis electrodes) by wiring 24A and 24B (see Figure 9) The overlapping portion in the stacking direction has a defective portion 23, which is formed by a portion of the mesh edge of the fine mesh being defective. Figure 8 In the embodiment, two missing portions 23 are provided in each X-axis grid x1 and x2, and missing portions 23 are provided at the vertices facing each other between adjacent grids. In this case, the frame line Gx 1A With frame line Gx 1B The ends of the frame wires are not connected to each other.

[0097] Next, Figure 9 An example of a wiring pattern of a Y-axis electrode is shown. The Y-axis grids y1 and y2 have four-sided frame lines Gy forming their outer contours, and a plurality of fine grids are formed in the area surrounded by these frame lines Gy. For example, in the Y-axis grid y1, the frame line Gy 1A and frame line Gy 1B These are a pair of frame lines on the side facing the Y-axis grid y2, and are arranged close to each other.

[0098] like Figure 9 As shown in FIG. 1 , the Y-axis grid y1 and the Y-axis grid y2 adjacent to each other in the Y-axis direction are connected by two connecting wires 24A and 24B. The connecting wires 24A and 24B are formed by sides (for example, two sides) parallel to the grid sides of the fine grid. Figure 9 In the figure, the connection wiring 24A is the frame line Gy of the Y-axis grid y1. 1B The extension line and the frame line Gy of the Y-axis grid y2 2B In addition, the connection wiring 24B is the frame line Gy of the Y-axis grid y1. 1A The extension line and the frame line Gy of the Y-axis grid y2 2A It is formed by connecting the extension lines of .

[0099] In the Y-axis electrode 5, the connection wirings 24A and 24B are provided in a grid pattern to connect the vertices T1 and T2 facing each other between the Y-axis grid y1 and the Y-axis grid y2. Figure 9 In the vertex T1, a pair of frame lines Gy 1A 、Gy 1B The ends are connected to each other, and at the vertex T2, a pair of frame lines Gy 2A 、Gy 2B The ends of the grids y1 and y2 are connected to each other. A 、Gy 1B 、Gy 2A 、Gy 2B Therefore, even if one of the connection wirings 24A and 24B is disconnected, the other connection wiring can be used to conduct electricity from the Y-axis grid y1 to the Y-axis grid y2, thereby preventing a decrease in sensitivity.

[0100] like Figure 9 As shown, in the Y-axis electrode 5 , the connection wirings 24A and 24B are provided line-symmetrically with respect to the center line Oy of the Y-axis grids y1 and y2 in the arrangement direction (Y-axis direction).

[0101] In addition, the Y-axis grids y1 and y2 are connected to the other-side electrodes (X-axis electrodes) by wiring 22A and 22B (see Figure 8 ) The overlapping portion in the stacking direction has a defective portion 25, which is formed by a portion of the mesh edge of the fine mesh being defective. Figure 9 In the embodiment, two notches 25 are provided in each of the Y-axis meshes y1 and y2. Due to the notches 25, blank areas are formed between two sides of the fine mesh and the intersections where the two sides meet.

[0102] Here, in Figure 9 In the case of a wiring pattern, connecting wirings 24A and 24B intersect at vertices T1 and T2. However, these intersections of four wirings are more susceptible to disconnection due to, for example, touch panel assembly or static electricity. Therefore, considering disconnection at these intersections, a connection method in which connecting wirings are formed at the vertices is preferred.

[0103] Figure 10 (a) and (b) show enlarged views of connection wiring for illustrating such connection methods. In these connection methods, two or more connection wirings are arranged in a grid pattern to connect opposing vertices T1 and T2. Furthermore, the two or more connection wirings do not intersect at vertices T1 and T2, but are independently connected to adjacent grids.

[0104] Specifically, in Figure 10 In (a), at the vertex T1, a pair of frame lines Gy 1A 、Gy 1B The ends of the frame line Gy are not connected to each other but are separated from each other. 1A The end of the frame line Gy is connected to the connection wiring 26A, and the other end of the frame line Gy is connected to the connection wiring 26A. 1B The end of is connected to the connection wiring 26B. In addition, at the vertex T2, a pair of frame lines Gy 2A 、Gy 2B The ends of the frame line Gy are not connected to each other but are separated from each other. 2A Connected to the connection wiring 26A, the other frame line Gy 2B Connected to the connection wiring 26B. In addition, Figure 10 The same applies to the connection wirings 27A and 27B in (b).

[0105] like Figure 10As shown in (a) and (b), the frame line on one side (for example, the frame line Gy 1A ) end portion and the connection boundary portion (eg, P portion) of one connection wiring (eg, connection wiring 26A) and the other frame line (eg, frame line Gy 1B ) is separated from the connection boundary portion (e.g., Q portion) of the connection wiring on the other side (e.g., connection wiring 26B). The separation distance CL between the connection boundary portion (e.g., P portion) on one side and the connection boundary portion (e.g., Q portion) on the other side is not particularly limited, and is, for example, about 30 μm to 50 μm. By setting the separation distance CL within this range, it is possible to easily form wiring to a certain extent, and it is also easy to prevent the gap from becoming conspicuous while effectively preventing short circuits. In addition, when the separation distance CL changes, it refers to its minimum separation distance.

[0106] Here, in Figure 10 In (a) and (b), the connection wiring of the vertex is different. Figure 10 In (a), at the vertex T1, the connection boundary portion P and the connection boundary portion Q are formed into an arc shape so as to be close to each other. In this case, the curvature of the arc is set as appropriate according to the separation distance CL, etc., and the curvature can be constant or variable. On the other hand, Figure 10 In (b), at the vertex portion T1 , the connection boundary portion P and the connection boundary portion Q are formed into straight lines parallel to each other along the Y-axis direction.

[0107] Although it is possible to use Figure 10 Any of the methods (a) and (b), but from the perspective of eliminating the continuity of the connecting boundary portion, Figure 10 The embodiment (a) is preferable. If the connection boundary portion is provided in a linear shape, there is a possibility that a noticeable moiré fringe or the like may be generated in the portion.

[0108] Figure 11 Show that Figure 8 The X-axis electrodes shown have Figure 10 An example of a state where the Y-axis electrodes of the connection wiring shown in (a) are overlapped. Figure 11 As shown, in both the X-axis electrode 3 and the Y-axis electrode 5, a countermeasure for disconnection is implemented by connecting adjacent grids with two or more connecting wirings 22A and 22B, 26A and 26B, and by adopting a structure in which the X-axis electrode 3 and the Y-axis electrode 5 do not overlap as much as possible in the stacking direction, thereby improving the detection accuracy and achieving more uniform transmittance and reflectance in the entire sensor unit.

[0109] In the second invention, from the viewpoint of making the wiring pattern of the connection wiring redundant, the number of wirings constituting the connection wiring can be further increased, and three or more connection wirings connecting adjacent meshes can be provided.

[0110] On the other hand, when the number of connection wirings increases, it is easy for the connection wirings to overlap with the wirings of the other side electrodes (grid edges of fine meshes or connection wirings) in parallel in the stacking direction. In this case, the capacitive coupling between the electrodes becomes stronger, which may also affect the touch sensitivity. Therefore, if Figure 11 As shown, the connection wirings 22A and 22B, 26A and 26B of the X-axis electrodes 3 and the Y-axis electrodes 5 are preferably arranged so as to intersect with the mesh edges of the fine mesh of the other electrode instead of overlapping in parallel in the stacking direction. Figure 11 In FIG, when viewed in the XY plane, four adjacent grids (x1, x2, y1, y2) intersect only at four locations surrounded by dotted circles, minimizing the effect of capacitance increase at the intersections.

[0111] Furthermore, it is preferable that the connection wirings 22A and 22B of the X-axis electrodes 3 and the connection wirings 26A and 26B of the Y-axis electrodes 5 do not overlap with each other.

[0112] The X-axis electrodes and Y-axis electrodes of each sensor unit are formed of a metal thin film. For example, when the metal thin film is an Al thin film, the Al thin film is formed by sputtering or vacuum deposition using a solid Al target (evaporation material) as a vacuum process. Figure 1 (a)) is also formed integrally with each electrode simultaneously. Sputtering is more preferred as a vacuum process because it can form a uniform film. Sputtering is a method of forming a film by causing accelerated argon ions to collide with a solid target, causing atoms or molecules ejected from the target surface to adhere to the glass substrate.

[0113] The method for processing the Al thin film into a predetermined shape, such as a grid, is not particularly limited. However, known photo resolution techniques are preferred because they allow for highly precise formation of the wiring connecting the electrodes and the aforementioned fine grid. For example, after forming the Al thin film by sputtering or vacuum deposition, a mask layer is formed using a resist material by screen printing to form an etching pattern. The fine wiring is then formed by wet etching using a predetermined etchant. The Al thin film preferably has a thickness of 100 to 5000 nm.

[0114] The structure of the capacitive touch panel of the second invention is not limited to the structure described in the drawings. Figures 8 to 11 In the diagram, the protrusions 21 are formed on the X-axis grids x1 and x2, but the protrusions may be formed on the Y-axis grids y1 and y2. Furthermore, the connection wiring method between the X-axis electrodes 3 and the Y-axis electrodes 5 may be reversed.

[0115] There is no limitation on the form of two or more connecting wires as long as they are formed by edges parallel to the mesh edges of the fine mesh and connect adjacent meshes. Figure 9 In the embodiment, although the opposing vertices of adjacent grids are connected in a single grid pattern, the opposing vertices of adjacent grids may be connected in a row of multiple grids. Furthermore, two or more connecting wires may be arranged asymmetrically with respect to the center line of each grid in the arrangement direction of the electrode.

[0116] Industrial Applicability

[0117] Regarding the capacitive touch panel of the present invention, in a touch panel having sensor electrodes formed in a grid pattern, it is possible to prevent a decrease in sensitivity caused by disconnection, etc., and therefore it can be suitably used as an input means for various devices such as home appliances, AV equipment, PC / OA equipment, industrial machinery and other electronic devices.

Claims

1. A capacitive touch panel, wherein X-axis electrodes and Y-axis electrodes are stacked with an insulating layer therebetween and arranged in a matrix in a plan view from a touch surface of the capacitive touch panel, wherein the X-axis electrodes are formed by arranging a plurality of X-axis grids in an X-axis direction, and the Y-axis electrodes are formed by arranging a plurality of Y-axis grids in a Y-axis direction intersecting the X-axis direction, wherein the capacitive touch panel is characterized in that: The X-axis grid and the Y-axis grid are formed by a plurality of fine grids. In each of the fine grids, a gap is provided in a portion of at least one of the grid edges. In the X-axis grid and the Y-axis grid, two or more conductive paths are formed along the grid edges of each fine grid to connect to adjacent grids.

2. The capacitive touch panel according to claim 1, wherein: The conductive paths in the X-axis grid and the Y-axis grid include a path formed by two sides of a frame forming part of an outer outline and a path passing through an internal wiring formed by mesh sides of the fine grid located inside.

3. The capacitive touch panel according to claim 2, wherein: The gaps are respectively provided in the fine meshes located on both sides of the internal wiring.

4. The capacitive touch panel according to claim 1 or 2, wherein: The X-axis grid and the Y-axis grid include fine grids in which the gaps are provided at two locations as the fine grids.

5. The capacitive touch panel according to claim 1 or 2, wherein: In the X-axis grid and the Y-axis grid, the gap is provided in at least one of four frame lines constituting the outer outline.

6. The capacitive touch panel according to claim 1, wherein: As the conductive paths in the X-axis grid and the Y-axis grid, a path formed by two frame lines forming part of the outer outline and a path passing through internal wiring formed by mesh edges of the fine grid located inside are formed. The X-axis grid and the Y-axis grid have fine grids with the gaps provided at two locations as the fine grids, In the X-axis grid and the Y-axis grid, the gap is provided in at least one of four frame lines constituting the outer outline.

7. A capacitive touch panel, wherein X-axis electrodes and Y-axis electrodes are stacked with an insulating layer therebetween and arranged in a matrix in a plan view from a touch surface of the capacitive touch panel, the X-axis electrodes being formed by arranging a plurality of X-axis grids in an X-axis direction, and the Y-axis electrodes being formed by arranging a plurality of Y-axis grids in a Y-axis direction intersecting the X-axis direction, wherein the capacitive touch panel is characterized in that: The X-axis grid and the Y-axis grid are formed by a plurality of fine grids. Each mesh in the X-axis electrode and the Y-axis electrode is connected to an adjacent mesh via two or more connecting wires, wherein the two or more connecting wires are formed by sides parallel to mesh sides of the fine mesh, and each mesh has a defective portion at a location overlapping with the connecting wire of the other electrode in the stacking direction, wherein the defective portion is formed by at least a portion of the mesh side of the fine mesh being defective.

8. The capacitive touch panel according to claim 7, wherein: The connection wirings of the X-axis electrodes and the Y-axis electrodes are provided so as to overlap, not in parallel with, but intersecting with mesh sides of the fine mesh of the counterpart electrode in a stacking direction.

9. The capacitive touch panel according to claim 7 or 8, characterized in that: In the X-axis electrode and the Y-axis electrode, the two or more connection wirings are provided line-symmetrically with respect to a center line of each mesh of the electrode in an arrangement direction.

10. The capacitive touch panel according to claim 7 or 8, characterized in that: In one of the X-axis electrode and the Y-axis electrode, the two or more connection wirings are provided in a grid pattern so as to connect opposing vertices of adjacent grids.

11. The capacitive touch panel according to claim 10, wherein: At the vertex, the ends of a pair of frame lines that constitute the outline of each grid and are arranged in a manner close to each other are not connected to each other but are separated from each other, the end of one of the pair of frame lines is connected to the connection wiring of one of the two or more connection wirings, and the end of the other frame line is connected to the connection wiring of the other.

12. The capacitive touch panel according to claim 11, wherein: At the apex, a connection boundary between the end of the one frame wire and the one connection wiring and a connection boundary between the end of the other frame wire and the other connection wiring are formed to be curved in an arc shape so as to face each other and approach each other.

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