Capacitive touch panel

Abstract

To provide a capacitive touch panel that includes sensor electrodes formed in a lattice pattern, capable of preventing a decrease in sensitivity due to disconnection while suppressing the generation of air bubbles within the lattice.SOLUTION: The capacitive touch panel 1 includes an X-axis electrode having a plurality of X-axis lattices arranged in the X-axis direction, and a Y-axis electrode having a plurality of Y-axis lattices y1 and y2 arranged in a Y-axis direction intersecting the X-axis direction, the electrodes being laminated with an insulating layer interposed therebetween. In a plan view from the touch surface of the capacitive touch panel, the electrodes are arranged in a matrix pattern. The X-axis lattices and the Y-axis lattices y1 and y2 are each formed of a plurality of fine lattices, and each fine lattice is provided with a gap 14 in a part of at least one of its lattice sides. In the X-axis lattices and the Y-axis lattices y1 and y2, at least two conductive paths are formed between adjacent lattices along the lattice sides of the fine lattices.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a capacitive touch panel that detects the approach of a user's finger or the like to any position on the touch surface (XY plane) by a change in capacitance, and in particular to a capacitive touch panel having sensor electrodes provided on a glass substrate. [Background technology]

[0002] Projected capacitive touch panels are used as one of the input means for home appliances, AV equipment, PCs / OA equipment, industrial machinery, and other electronic devices. Projected capacitive touch panels are devices that detect touch position by reading changes in capacitance using sensor electrodes formed in specific patterns in the X-axis and Y-axis directions.

[0003] For example, a known sensor electrode pattern is one in which diamond-shaped lattices are arranged vertically (Y) and horizontally (X) (hereinafter also referred to as a diamond pattern) (see Patent Document 1). In this touch panel, in a plan view seen from the touch surface, lattices arranged in the X-axis direction (X-axis lattice) and lattices arranged in the Y-axis direction (Y-axis lattice) are arranged in a matrix. The X-axis lattice and the Y-axis lattice are each formed of a metal thin film consisting of finer lattices. In this touch panel, the X-axis electrodes and the Y-axis electrodes are stacked with a transparent insulating layer in between so that the intersections of the X-axis electrodes and the Y-axis electrodes can be electrically insulated.

[0004] There are two ways to form the laminated structure of the X-axis electrode, insulating layer, and Y-axis electrode described above: (1) a method in which a transparent liquid insulating material is applied between the X-axis electrode and the Y-axis electrode on a single glass substrate, and (2) a method in which the X-axis electrode and the Y-axis electrode are formed on separate glass substrates and then bonded together with an insulating material such as optically adhesive film (OCA) or optical resin (OCR). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2015 / 137477 Summary of the Invention [Problem to be solved by the invention]

[0006] In either method (1) or (2), if the fine grids that make up the X-axis grid and Y-axis grid are blocked when forming the insulating layer, the unevenness (steps) in the metal thin film can prevent air from escaping, potentially trapping air bubbles inside the fine grids. These air bubbles can cause problems with the touch panel, such as malfunctions. However, touch panels are required to prevent loss of sensitivity due to disconnections in the wiring.

[0007] The present invention has been made in consideration of these circumstances, and aims to provide a capacitive touch panel having sensor electrodes formed in a grid pattern, which can prevent a decrease in sensitivity due to disconnections while suppressing the generation of air bubbles within the grid. [Means for solving the problem]

[0008] The capacitive touch panel of the present invention is a capacitive touch panel in which X-axis electrodes, each having a plurality of X-axis lattices arranged in the X-axis direction, and Y-axis electrodes, each having a plurality of Y-axis lattices arranged in the Y-axis direction intersecting the X-axis direction, are stacked via an insulating layer, and are arranged in a matrix pattern when viewed in a plan view from the touch surface of the capacitive touch panel, wherein the X-axis lattices and the Y-axis lattices are formed of a plurality of fine lattices, each of which has a gap in a portion of at least one of its lattice sides, and the X-axis lattices and the Y-axis lattices have two or more conduction paths formed by tracing the lattice sides of each of the fine lattices to adjacent lattices.

[0009] In the present invention, a conductive path between adjacent lattices in the X-axis lattice and the Y-axis lattice refers to, for example, a path that provides electrical continuity from one X-axis lattice adjacent to the other X-axis lattice in the X-axis direction in any X-axis lattice, and more specifically, a path that provides electrical continuity from a connection point of a connection part with one X-axis lattice to a connection point of a connection part with the other X-axis lattice in any X-axis lattice. The same applies to the Y-axis lattice. Furthermore, forming two or more conductive paths means that, in the X-axis lattice and the Y-axis lattice, two or more paths (excluding intersections) where wiring does not overlap with each other are secured as conductive paths between adjacent lattices.

[0010] The conductive paths in the X-axis lattice and the Y-axis lattice are characterized in that a path consisting of two frame lines that form part of the outer periphery and a path that passes through internal wiring that is made up of the lattice sides of the fine lattice located inside are formed.

[0011] The fine grids located on both sides of the internal wiring are each provided with the gap.

[0012] The X-axis grating and the Y-axis grating are characterized in that the fine grating has the gaps provided at two locations.

[0013] In the X-axis lattice and the Y-axis lattice, the gap is provided in at least one of the four frame lines that form the outer contour.

[0014] The conductive paths in the X-axis lattice and the Y-axis lattice are formed as a path consisting of two frame lines that form part of the outer hull, and a path that passes through internal wiring that is composed of the lattice edges of the fine lattice located inside, and the X-axis lattice and the Y-axis lattice have fine lattices in which the gaps are provided in two locations as the fine lattice, and in the X-axis lattice and the Y-axis lattice, the gap is provided in at least one frame line of the four frame lines that form the outer hull. [Effects of the Invention]

[0015] The capacitive touch panel of the present invention is a capacitive touch panel in which an X-axis electrode having a plurality of X-axis lattices arranged in the X-axis direction and a Y-axis electrode having a plurality of Y-axis lattices arranged in the Y-axis direction are stacked via an insulating layer, and the X-axis lattices and Y-axis lattices are formed from a plurality of fine lattices, and each fine lattice has a gap in part of at least one of its lattice sides, and in the X-axis lattice and Y-axis lattice, two or more conductive paths are formed with adjacent lattices that are formed by tracing the lattice sides of each fine lattice.Therefore, at least one air escape route is secured in each fine lattice, and the generation of air bubbles within the lattice is suppressed, while ensuring two or more conductive paths prevents a decrease in sensitivity due to disconnections.

[0016] The X-axis lattice and the Y-axis lattice have fine lattices with gaps provided in two locations, which makes it easier to suppress the generation of bubbles within the lattices. [Brief explanation of the drawings]

[0017] [Figure 1] 1A and 1B are a plan view and a side view showing an example of a capacitive touch panel of the present invention. [Figure 2] 2 is a schematic diagram showing an enlarged cross section of the touch panel of FIG. 1. [Figure 3] FIG. 2 is an enlarged view illustrating a state in which the X-axis electrode and the Y-axis electrode are stacked. [Figure 4] FIG. 1 is a diagram showing a wiring pattern in a conventional touch panel. [Figure 5] FIG. 2 is a diagram showing an example of a wiring pattern in the touch panel of the present invention. [Figure 6] 10A and 10B are diagrams showing other examples of wiring patterns in the touch panel of the present invention. [Figure 7] 10A and 10B are diagrams showing other examples of wiring patterns in the touch panel of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] An example of a capacitive touch panel of the present invention will be described with reference to FIG. 1. FIG. 1(a) is a schematic plan view of the capacitive touch panel, and FIG. 1(b) is its side view. As shown in FIG. 1(b), the capacitive touch panel 1 includes a light-transmitting first glass substrate 2 having an X-axis electrode 3 for detecting the X-axis direction and a light-transmitting second glass substrate 4 having a Y-axis electrode 5 for detecting the Y-axis direction, and 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 forms a touch surface 2a, and the X-axis electrode 3 is provided on the surface 2b opposite the touch surface 2a. In addition, the 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, facing each other. Because no glass substrate is interposed between the two electrodes, the gap between the electrodes is significantly smaller than when a glass substrate is interposed.

[0019] The X-axis electrode 3 and the Y-axis electrode 5 are connected to terminals 8 via lead wiring 7 for electrical connection with external wiring. For example, a flexible printed circuit board (FPC) 9 is connected as the external wiring, and a control unit (not shown) that performs touch detection is connected via the FPC 9. Furthermore, to improve environmental resistance, a metal lead frame may be provided instead of the FPC 9. The capacitive touch panel of the present invention utilizes the change in the capacitance of the electrode caused by electrostatic coupling between the sensor electrode and the finger, and the specific detection procedure in the control unit can be a known procedure.

[0020] An enlarged cross-sectional view of the panel is shown in Fig. 2. While Fig. 2 shows an example of a structure in which two glass substrates are stacked and each sensor unit is sandwiched between them, the present invention is not limited to this structure, and the X-axis electrode and the Y-axis electrode may be formed on a single glass substrate.

[0021] As shown in Figure 2, the X-axis electrode 3 has an intermediate layer 3b formed on the surface opposite the touch surface 2a of the first glass substrate 2, and a sensor electrode 3a made of a thin metal film formed thereon. The Y-axis electrode 5 has a sensor electrode 5a made of a thin metal film formed on one surface (the first glass substrate side) of the second glass substrate 4, and an intermediate layer 5b formed thereon. When viewed from the touch surface 2a, both electrodes are formed so that the thin metal film is located below the intermediate layer. This reduces the reflectance of visible light and ensures visibility.

[0022] The metal thin film constituting the sensor electrodes 3a and 5a is formed by a known thin film forming method using materials such as aluminum (Al), Al alloy, niobium, molybdenum, gold, silver, copper, etc. Among these, it is preferable to use an Al thin film because of its excellent environmental resistance and low cost.

[0023] The intermediate layers 3b and 5b are (1) thin films containing at least one metal selected from Cr, Mo, and W. The intermediate layers 3b and 5b are layers (black layers) that appear black by absorbing incident light through visible light interference. From the touch surface 2a, the switch section appears black, suppressing reflection. The intermediate layers can be formed by sputtering, similar to the formation of the Al thin film described above. The intermediate layers preferably contain a predetermined amount of (2) at least one oxide selected from an oxide of Al (e.g., Al2O3) and an oxide of Ti (e.g., TiO2). By including a predetermined amount of these oxides, reflectance can be further reduced. A mixed layer of Mo and Al2O3 is more preferable as the intermediate layer. The thickness of the intermediate layer is preferably 5 nm to 500 nm, more preferably 20 nm to 200 nm.

[0024] The first glass substrate 2 and the second glass substrate 4 are light-transmitting insulating substrates, and may be made of soda-lime glass, quartz glass, borosilicate glass, or alkali-free glass containing no alkali components. Soda-lime glass is preferred because it has high transmittance, is commonly used as window glass in general buildings, and is very inexpensive. Each glass substrate has a thickness of approximately 0.5 to 5 mm, preferably 0.5 to 3.0 mm.

[0025] In Figure 2, an insulating layer 6 is formed between the X-axis electrode 3 and the Y-axis electrode 5, specifically between the X-side sensor electrode 3a and the Y-side intermediate layer 5b, to insulate the sensor electrodes. The appropriate thickness of the insulating layer is 50 μm to 500 μm. If the insulating layer thickness exceeds 500 μm, the gap between the sensor electrodes becomes large, resulting in a difference in sensitivity between the X-axis electrode and the Y-axis electrode.

[0026] In FIG. 2, the X-axis electrodes are provided on the first glass substrate on the touch surface side, but 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.

[0027] In Figure 1(a), the electrodes 3 and 5 are patterned in a diamond pattern. Specifically, the X-axis electrode 3 has multiple diamond-shaped X-axis lattices x1 and x2 (see Figure 3) arranged in a straight line in the X-axis direction. Furthermore, the Y-axis electrode 5 has multiple diamond-shaped Y-axis lattices y1 and y2 (see Figure 3) arranged in a straight line in the Y-axis direction perpendicular to the X-axis direction. The X-axis electrode 3 and the Y-axis electrode 5 are arranged in positions that do not overlap when viewed in the XY plane (in a planar view), and the X-axis lattices and the Y-axis lattices are arranged in a matrix.

[0028] FIG. 3 shows an enlarged schematic diagram of the X-axis electrodes and Y-axis electrodes stacked together. As shown in FIG. 3, X-axis lattices x1 and x2 have four frame lines Gx that define their outer periphery, and multiple finer lattice-like portions (fine lattices) are formed within the area surrounded by these frame lines Gx. Similarly, Y-axis lattices y1 and y2 have four frame lines Gy that define their outer periphery, and multiple fine lattices are formed within the area surrounded by these frame lines Gy. In the X-axis lattices x1 and x2 and the Y-axis lattices y1 and y2, the frame lines Gx and Gy and their internal wiring are formed by each lattice side of the fine lattice.

[0029] In the fine lattice, the lattice-like portion is formed by stacking the above-mentioned sensor electrodes and intermediate layers in the above order. The spaces between the lattices are openings, and no sensor electrodes or intermediate layers are formed in these areas. Because the lattice-like portion is an extremely fine lattice, it becomes a translucent portion that appears transparent to the naked eye at first glance. The lattice-like portion typically has a line width W of 3 μm to 50 μm and a line pitch P of about 0.2 mm to 1 mm.

[0030] In Figure 3, the Y-axis gratings y1 and y2 have protrusions 11 that protrude outward from the four frame lines Gy of each of the four sides. The protrusions 11 are provided as extensions of the grid sides of the fine grid, and are formed parallel to the grid sides of the fine grid. The protrusions 11 are provided so as to fill the gaps formed between the frame lines Gx of the X-axis grating and the frame lines Gy of the Y-axis grating. This makes the transmittance of the gaps and that of each diamond grid approximately the same, making the gaps less noticeable.

[0031] As shown in FIG. 3, X-axis grating x1 and X-axis grating x2 are connected via connecting portion 12 formed by sides parallel to the grating sides of the fine grating. Connecting portion 12 is provided asymmetrically with respect to the center line of the X-axis grating in the X-axis direction. Furthermore, Y-axis grating y1 and Y-axis grating y2 are connected via connecting portion 13 formed by sides parallel to the grating sides of the fine grating. Connecting portion 13 is formed using a part of protrusion 11 and is provided asymmetrically with respect to the center line of the Y-axis grating in the Y-axis direction. As shown in FIG. 3, by forming connecting portions 12 and 13 on sides parallel to the grating sides of the fine grating, these connecting portions are made less noticeable. Note that the form of the connecting portion connecting each grating is not limited to the configuration shown in FIG. 3.

[0032] In the embodiment shown in FIG. 3, the X-axis gratings x1 and x2 have a missing portion A, where a portion of a lattice edge of the fine grating is missing, at a location where the X-axis gratings x1 and x2 overlap with the connecting portion 13 of the Y-axis electrode 5 in the stacking direction. In this case, the missing portion A is located on the frame line Gx. The Y-axis gratings y1 and y2 also have a missing portion B, where a portion of a lattice edge of the fine grating is missing, at a location where the Y-axis gratings y1 and y2 overlap with the connecting portion 12 of the X-axis electrode 3 in the stacking direction. By minimizing overlap between the X-axis electrode 3 and the Y-axis electrode 5 in the stacking direction, detection accuracy is improved and more consistent transmittance and reflectance can be achieved throughout the sensor. The protrusions 11 and connecting portions 12 and 13 are made of a thin metal film, similar to the configuration of the fine grating. Specifically, they are made of the sensor electrode and intermediate layer described above.

[0033] Here, the insulating layer 6 (see FIG. 2) interposed between the X-axis electrode 3 and the Y-axis electrode 5 is formed by the above-mentioned method (1) or (2). However, when attaching the OCA or filling the OCR, the unevenness (steps) of the metal thin film in the fine grid may prevent air from escaping, and air bubbles may become trapped inside the fine grid. For this reason, in the past, gaps were provided in each of the X-axis and Y-axis grids to allow air to escape so that the inside of the fine grid would not become clogged. An example of this configuration is shown in FIG. 4.

[0034] FIG. 4 shows a portion of the Y-axis grid y1 and the Y-axis grid y2. In this figure, the wiring is shown thicker than the other wiring to make the conduction path easier to understand, but the actual wiring thickness is the same as the other wiring. Also, in FIG. 4, the configuration of the protrusions and missing parts shown in FIG. 3 is omitted. This also applies to FIGS. 5 to 7 described later.

[0035] In FIG. 4, the Y-axis lattice y1 has a plurality of fine lattices formed within an area surrounded by four frame lines G1 to G4. Specifically, 12 fine lattices are arranged along the a direction parallel to one of the lattice sides, and 12 fine lattices are arranged along the b direction intersecting the a direction and parallel to the other direction of the lattice sides, for a total of 144 fine lattices. Gaps 14 are provided in each fine lattice. The gaps 14 are formed by cutting off a portion of the lattice side extending in the b direction of each fine lattice. The frame line G4 is also formed intermittently by the gaps 14. Meanwhile, the lattice sides of each fine lattice extending in the a direction are continuous wiring.

[0036] In the wiring pattern of Figure 4, in the Y-axis grid y1, the internal wiring is not connected, and there is only one conductive path from connection point p of one connection part 13 (left side of the figure) to connection point q of the other connection part 13 (right side of the figure). This conductive path L is made up of two frame lines G1 and G2. Specifically, it is made up of frame line G1 extending from connection point p in the b direction, and frame line G2 extending from the end of frame line G1 to connection point q in the a direction.

[0037] 4, if a break occurs in frame line G1 or frame line G2, for example, electrical continuity to the Y-axis lattice beyond it will be lost, and that Y-axis lattice may cease to function. In contrast, in the present invention, gaps are provided in each fine lattice of the X-axis lattice and the Y-axis lattice, and two or more electrical continuity paths are secured between the X-axis lattice and the Y-axis lattice and between each fine lattice and an adjacent lattice formed by tracing the lattice sides of the fine lattice.

[0038] FIG. 5 shows a wiring pattern of a Y-axis grid in one embodiment of the touch panel of the present invention. As shown in FIG. 5, each fine grid of the Y-axis grid y1 has a gap 14 in a portion of at least one of its grid sides. The gap 14 is formed by cutting off a portion of the grid side extending in the b direction of the fine grid. In this case, four sides of each fine grid are open, and a gap 14 is provided in at least one of the four sides. Furthermore, in FIG. 5, by adding redundant wiring R1 to R4 to the wiring pattern of FIG. 4, two or more conductive paths are formed in the Y-axis grid y1. Note that the redundant wiring here refers to a continuous wiring portion formed by connecting unconnected portions (portions of the gap 14) in the wiring pattern of FIG. 4. Note that the frame line G4 is also referred to as redundant wiring R4.

[0039] In FIG. 5, the redundant wirings R1 to R4 each extend in a straight line along the b direction, connecting the opposing frame lines G3 and G2. The redundant wirings R1 to R4 are arranged parallel to one another at equal intervals. Specifically, three micro-grids are arranged between adjacent redundant wirings in the a direction. In FIG. 5, the spacing between the redundant wirings (corresponding to the number of micro-grids) is not particularly limited, but it is preferable to arrange two or more micro-grids between the redundant wirings, and more preferably to arrange three or more micro-grids. As shown in FIG. 5, in a configuration in which three micro-grids are arranged between the redundant wirings, for example, a micro-grid is formed in which gaps 14 are provided at two locations per micro-grid (for example, the micro-grid 15 in FIG. 5(b)). As a result, it is easier to suppress the generation of bubbles within the grating.

[0040] 5, the conduction paths in the Y-axis grid y1 include a first path and a second path whose wiring does not overlap with each other (except at intersections). For example, if the path consisting of two frame lines G1 and G2 that form part of the outer periphery is the first path L1, then the path whose wiring does not overlap with this first path L1 is the second path.

[0041] 5, the second path is formed, for example, via internal wiring formed by the lattice edges of the fine lattice located inside. For example, as shown by the arrow in the figure, the second path L2 is formed as a path from the connection point p to the connection point q via the frame line G3, the redundant wiring R2, the wiring a1 extending in the a direction, and the frame line G4. The internal wiring in this second path L2 corresponds to the redundant wiring R2 and the wiring a1.

[0042] 5, the second path is not limited to the path described above, and can be a path via other redundant wiring (such as R1 or R3), a path via other wiring extending in the a direction, a path consisting of two frame lines G3 and G4 that form part of the outline of the Y-axis grid y1, etc. As a measure against wire breakage, it is preferable to provide redundant wiring so that multiple paths can be constructed as the second path.

[0043] Furthermore, even in a wiring pattern in which redundant wiring is provided to form a second path, according to the present invention, gaps 14 are also provided in each of the fine gratings located on both sides of the redundant wiring R1 (internal wiring that constitutes the second path), as shown in Figure 5(b), for example, so that the generation of air bubbles can be suppressed while ensuring multiple conductive paths.

[0044] The separation distance (opening distance) of the lattice sides of the gaps 14 is not particularly limited, but is preferably 20 μm to 50 μm. In relation to the length of one side of the lattice, the separation distance is preferably 1 / 20 to 1 / 5 of the length of one side of the lattice, and more preferably 1 / 10 to 1 / 6 of the length of the lattice side.

[0045] Furthermore, the gaps 14 in the fine lattice are preferably aligned in a straight line with the gaps 14 of other adjacent fine lattices in one direction of the lattice edge (direction a in FIG. 5). This facilitates smooth air flow between the interconnected fine lattices during roller processing, making it easier to suppress the generation of bubbles.

[0046] In this way, in the wiring pattern of Figure 5, even if a break occurs in the first path consisting of the frame lines G1 and G2 of the Y-axis lattice y1, the second path, which serves as a detour path, ensures continuity to the Y-axis lattice y2, thereby preventing a decrease in sensitivity.

[0047] The number, position and arrangement of the redundant wiring are not particularly limited.

[0048] For example, in FIG. 5, each of the redundant wirings R1 to R4 is configured by one straight line, but as shown in FIG. 6, it may be configured by a combination of multiple straight lines. In FIG. 6, for example, the redundant wiring R1 is configured so that four straight line sections each extending along the b direction are connected to each other, and each straight line section is staggered with one fine grid space between them. Furthermore, each straight line section is configured by connecting three grid sides of the fine grid. The same applies to the redundant wirings R2 and R3. Furthermore, multiple fine grids are arranged between adjacent redundant wirings in the a direction.

[0049] 6 also has a first path and a second path as conduction paths in the Y-axis grid y1. For example, if the path consisting of two frame lines G1 and G2 on each side is defined as the first path L1, then as shown by the arrow in the figure, the second path L2 is formed from the connection point p via the frame line G3, the redundant wiring R2, the wiring a2 extending in the a direction, the redundant wiring R3, the wiring a3 extending in the a direction, and the frame line G4 to the connection point q. Note that another path can also be defined as the second path.

[0050] As another wiring pattern, a gap may be provided in at least one of the four frame lines that form the outer periphery of each of the X-axis and Y-axis grids, which makes it easier to prevent air bubbles from accumulating in the frame line area.

[0051] For example, in the wiring pattern of Fig. 7, of the frame lines G1 to G4 of the Y-axis lattice y1, a gap 14 is provided in the frame line G4. In this Y-axis lattice y1, redundant wirings R1 and R2 are provided, and 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 connects the frame line G3 to the wiring a4 along the way. In addition, the redundant wiring R2 constitutes part of the frame line G4, extends along the b direction, and connects the wiring a4 to the connection point q.

[0052] 5 to 7, the Y-axis grating has been described, but the same configuration can be adopted for the X-axis grating. Furthermore, the configuration of the protrusions and cutouts described in Fig. 3 can be adopted for the X-axis grating and the Y-axis grating as needed.

[0053] The configuration of the capacitive touch panel of the present invention is not limited to the configurations explained in the drawings. [Industrial Applicability]

[0054] The capacitive touch panel of the present invention is a touch panel having sensor electrodes formed in a grid pattern, which can suppress the generation of air bubbles within the grid while preventing a decrease in sensitivity due to disconnections, and therefore 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. [Explanation of symbols]

[0055] 1 Capacitive touch panel 2. First glass substrate 3 X-axis electrode 4 Second glass substrate 5 Y-axis electrode 6 insulating layer 7 Wiring 8 External connection terminal 9 Flexible Printed Circuits (FPC) 11 Protrusion 12 Connection 13 Connection 14 Gap 15 Fine lattice x1, x2 X-axis grid y1, y2 Y-axis grid p, q connection points Gx, Gy border G1~G4 borders R1~R4 redundant wiring L1 1st pathway L2 Secondary pathway A, B Defective area

Claims

1. A capacitive touch panel in which X-axis electrodes, each having a plurality of X-axis grids arranged in an X-axis direction, and Y-axis electrodes, each having a plurality of Y-axis grids arranged in a Y-axis direction intersecting the X-axis direction, are stacked via an insulating layer, and are arranged in a matrix pattern in a plan view seen from the touch surface of the capacitive touch panel, A capacitive touch panel characterized in that the X-axis lattice and the Y-axis lattice are formed of a plurality of fine lattices, each of the fine lattices has a gap in a portion of at least one of the lattice sides, and in the X-axis lattice and the Y-axis lattice, two or more conductive paths are formed with adjacent lattices that are formed by tracing the lattice sides of each of the fine lattices.

2. The capacitive touch panel of claim 1, characterized in that the conductive paths in the X-axis lattice and the Y-axis lattice include a path consisting of two frame lines that form part of the outer casing, and a path that passes through internal wiring that is formed by the lattice edges of the fine lattice located inside.

3. 3. The capacitive touch panel according to claim 2, wherein the gap is provided in each of the fine grids located on both sides of the internal wiring.

4. 3. The capacitive touch panel according to claim 1, wherein the X-axis grating and the Y-axis grating each have a fine grating in which the gap is provided at two locations.

5. 3. The capacitive touch panel according to claim 1, wherein the gap is provided in at least one of the four frame lines that form the outer periphery of the X-axis lattice and the Y-axis lattice.

6. As the conduction paths in the X-axis lattice and the Y-axis lattice, a path formed by two frame lines constituting a part of the outer periphery and a path passing through internal wiring formed by lattice sides of the fine lattice located inside are formed, the X-axis grating and the Y-axis grating each have a fine grating in which the gap is provided at two locations; 2. The capacitive touch panel according to claim 1, wherein the gap is provided in at least one of the four frame lines that form the outer periphery of the X-axis lattice and the Y-axis lattice.

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