Wiring sheet

Abstract

To provide a wiring sheet that can change the amperage for each place in a sheet plane and can selectively energize a part under pressure.SOLUTION: A wiring sheet 100 includes a first quasi-sheet structure 2 where a plurality of first conductive striped bodies 21 are arranged at intervals, a first electrode 41 electrically connected to one or more of the first conductive striped bodies 21, a second electrode 42, which forms a pair with the first electrode 41, electrically connected to the other first conductive striped bodies 21 that are not electrically connected to the first electrode 41, and a second quasi-sheet structure 7 where a plurality of second conductive striped bodies 71 are arranged at intervals. The volume resistivity of the first conductive striped bodies 21 is lower than that of the second conductive striped bodies 71. In a plan view of the wiring sheet 100, when the first quasi-sheet structure 2 and the second quasi-sheet structure 7 intersecting at each intersection are electrically connected, the resistance value is different at any point between the second conductive striped bodies 71 between the intersections.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a wiring sheet. [Background technology]

[0002] For example, there are cases where a planar heater is required to keep warm only the area that a person touches. For example, Patent Document 1 describes a planar heater that includes a heating element and multiple electrode portions each consisting of a pair of electrode components facing each other at a certain distance. In this planar heater, the area other than the electrode portions forms a double-structure woven or knitted fabric.

[0003] However, the sheet heater described in Patent Document 1 uses a woven structure to achieve a pressure-sensitive switch function, and because this woven structure cannot be removed, for example, the sheet heater cannot be made transparent, resulting in a problem of low design freedom. On the other hand, in the case of a sheet heater, there are cases where it is required to set the temperature for each location within the plane of the sheet, and the sheet heater described in Patent Document 1 cannot meet such a requirement. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. Hei 1-197990 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a wiring sheet that can change the amount of current at each location within the plane of the sheet and can selectively energize portions where pressure is applied. [Means for solving the problem]

[0006] According to one aspect of the present invention, there is provided a wiring sheet comprising: a first pseudo sheet structure in which a plurality of first conductive linear bodies are arranged at intervals; a first electrode electrically connected to one or more of the first conductive linear bodies; a second electrode paired with the first electrode and electrically connected to one of the first conductive linear bodies that is not electrically connected to the first electrode; and a second pseudo sheet structure in which a plurality of second conductive linear bodies are arranged at intervals, wherein the second pseudo sheet structure is disposed facing the first pseudo sheet structure at a distance and is not electrically connected to the first electrode or the second electrode, the volume resistivity of the first conductive linear bodies is lower than the volume resistivity of the second conductive linear bodies, the first conductive linear bodies and the second conductive linear bodies intersect at each intersection in a plan view of the wiring sheet, and when the first pseudo sheet structure and the second pseudo sheet structure are electrically connected, resistance values ​​differ between any of the second conductive linear bodies between the intersections.

[0007] In the wiring sheet according to one aspect of the present invention, it is preferable that any two of the second conductive linear elements have different thicknesses.

[0008] In the wiring sheet according to one aspect of the present invention, it is preferable that any two of the second conductive linear elements be made of different materials.

[0009] In the wiring sheet according to one aspect of the present invention, it is preferable that the intervals between any two of the first conductive linear elements are different.

[0010] In a wiring sheet according to one embodiment of the present invention, it is preferable that the second pseudo sheet structure is not in contact with the first pseudo sheet structure when no stress is applied in the direction from the second pseudo sheet structure to the first pseudo sheet structure, and is in contact with the first pseudo sheet structure when stress is applied in the direction from the second pseudo sheet structure to the first pseudo sheet structure.

[0011] In a wiring sheet according to one embodiment of the present invention, it is preferable that the wiring sheet further comprises a resin layer supporting the first pseudo sheet structure, and that the resin layer does not maintain contact with the second pseudo sheet structure when the resin layer comes into contact with the second pseudo sheet structure.

[0012] In the wiring sheet according to one aspect of the present invention, it is preferable that the first electrode is electrically connected to the second conductive linear body, or the second electrode is electrically connected to the second conductive linear body.

[0013] In the wiring sheet according to one aspect of the present invention, the wiring sheet preferably includes a spacer member that separates the first pseudo sheet structure and the second pseudo sheet structure.

[0014] In the wiring sheet according to one aspect of the present invention, the first conductive linear element and the second conductive linear element are preferably gold-plated linear elements. [Effects of the Invention]

[0015] According to the present invention, it is possible to provide a wiring sheet that can change the amount of current for each location within the plane of the sheet and can selectively energize areas where pressure is applied. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a schematic exploded perspective view showing a wiring sheet according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view showing the II-II cross section of FIG. [Figure 3] FIG. 2 is a cross-sectional view showing the cross section III-III of FIG. [Figure 4] 1 is a schematic plan view showing a wiring sheet according to a first embodiment of the present invention. [Figure 5] FIG. 4 is a schematic plan view showing a wiring sheet according to a second embodiment of the present invention. [Figure 6]A schematic perspective view showing a first pseudo sheet structure, a first electrode, and a second electrode according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] [First embodiment] The present invention will be described below with reference to the drawings, taking an embodiment as an example. The present invention is not limited to the content of the embodiment. In the drawings, some parts are illustrated enlarged or reduced in size for ease of explanation.

[0018] (wiring sheet) As shown in Figures 1, 2, 3, and 4, the wiring sheet 100 of this embodiment comprises a first substrate 1, a first pseudo sheet structure 2 in which a plurality of first conductive linear members 21 are arranged at intervals, a first resin layer 3, a first electrode 41, a second electrode 42, a spacer member 5, a second substrate 6, a second pseudo sheet structure 7 in which a plurality of second conductive linear members 71 are arranged at intervals, and a second resin layer 8. The first electrode 41 and the second electrode 42 form a pair. The first electrode 41 is electrically connected to one or more of the first conductive linear bodies 21. The second electrode 42 is electrically connected to the first conductive linear bodies 21 that are not electrically connected to the first electrode 41. On the other hand, the second electrode 42 is not electrically connected to the first conductive linear bodies 21 that are electrically connected to the first electrode 41. The spacer member 5 is arranged between the first pseudo sheet structure 2, the first electrode 41, the second electrode 42, and the second pseudo sheet structure 7. Therefore, the second pseudo sheet structure 7 is arranged at a distance so as to face the first pseudo sheet structure 2, and is not electrically connected to the first electrode 41 and the second electrode 42. The volume resistivity of the first conductive linear body 21 is smaller than the volume resistivity of the second conductive linear body 71. In addition, in a plan view of the wiring sheet 100, the first conductive linear body 21 and the second conductive linear body 71 intersect at each intersection point. When the first pseudo sheet structure 2 and the second pseudo sheet structure 7 are electrically connected, the resistance value differs between any of the second conductive linear bodies 71 between the intersections.

[0019] In the wiring sheet 100 according to the present embodiment, the volume resistivity of the first conductive linear body 21 is smaller than the volume resistivity of the second conductive linear body 71. Therefore, when the first conductive linear body 21 and the second conductive linear body 71 are electrically connected, the heat generation in the first conductive linear body 21 can be reduced and the heat generation in the second conductive linear body 71 can be increased. Note that when the second conductive linear body 71 generates heat, the portion corresponding to the pressurized portion can be more appropriately heated.

[0020] In wiring sheet 100 according to the present embodiment, the resistance value differs between any of the second conductive linear bodies 71 between the intersections, and therefore the amount of current can be changed for each of the intersections. By changing the amount of current between each of the intersections, the amount of heat generated can be adjusted for each location within the sheet plane, and therefore the temperature can be set for each location within the sheet plane.

[0021] Here, examples of a method for changing the resistance value between the second conductive linear bodies 71 between the intersections include the following methods. For example, as shown in FIG. 2, the intervals between any of the first conductive linear bodies 21 may be different. When the intervals L1 between the first conductive linear bodies 21 are different, the lengths of the second conductive linear bodies 71 between the intersections are different. In this case, if the material and thickness of the second conductive linear bodies 71 are the same, the resistance values ​​of the second conductive linear bodies 71 between the intersections are different. Then, as shown in FIG. 2 , when the intervals L1 between the first conductive linear bodies 21 are longer toward the end, the resistance value of the second conductive linear bodies 71 between the intersections is higher toward the end. Therefore, the amount of current flowing through the second conductive linear bodies 71 between the intersections is smaller toward the end.

[0022] As shown in FIG. 3, the thicknesses of any of the second conductive linear bodies 71 may be different. If the second conductive linear body 71 is made of the same material, the resistance value of the second conductive linear body 71 decreases as the thickness (diameter) D2 of the second conductive linear body 71 increases. As shown in Fig. 3, if the thickness of the second conductive linear body 71 increases toward the center, the resistance value of the second conductive linear body 71 between the intersections decreases toward the center. Therefore, the amount of current flowing through the second conductive linear body 71 between the intersections increases toward the center.

[0023] The materials of any of the second conductive linear bodies 71 may be different. By changing the material, the resistance value of the second conductive linear body 71 can be changed according to the material. For example, the higher the volume resistivity of the material used for the second conductive linear body 71, the higher the resistance value of the second conductive linear body 71 between the intersections.

[0024] In the wiring sheet 100 of this embodiment, it is preferable that the second pseudo sheet structure 7 is not in contact with the first pseudo sheet structure 2 when no stress is applied in the direction from the second pseudo sheet structure 7 to the first pseudo sheet structure 2, and is in contact with the first pseudo sheet structure 2 when stress is applied in the direction from the second pseudo sheet structure 7 to the first pseudo sheet structure 2. With this structure, when a hand or the like touches a portion of the wiring sheet 100 and stress is applied, a connection point is formed where the first conductive linear body 21 and the second conductive linear body 71 are electrically connected. If there are two or more connection points, electricity can flow between the connection points. Heat can be generated in the area where electricity is flowing in this way. On the other hand, in areas where stress is not applied, there are no connection points, so electricity does not flow and no heat is generated. In this way, the wiring sheet 100 can selectively generate heat in areas where pressure is applied when a hand or the like touches it. In other words, the wiring sheet 100 has both a pressure-sensitive function and a heat-generating function. The pressure-sensitive function refers to the function of selectively passing electricity through areas where pressure is applied.

[0025] (base material) The first substrate 1 can directly or indirectly support the first pseudo sheet structure 2. The second substrate 6 can directly or indirectly support the second pseudo sheet structure 7. Note that the first substrate 1 and the second substrate 6 are not necessarily provided. The first substrate 1 and the second substrate 6 are components that are provided as needed. Examples of the first substrate 1 and the second substrate 6 include synthetic resin films, paper, nonwoven fabrics, cloths, and glass films. The first substrate 1 and the second substrate 6 are preferably transparent substrates or substrates with visibility. With this configuration, the wiring sheet 100 can be made transparent or have visibility. Furthermore, first substrate 1 and second substrate 6 may be stretchable substrates. For example, if first substrate 1 is a stretchable substrate, the stretchability of wiring sheet 100 can be ensured even when first pseudo sheet structure 2 is provided on first substrate 1. The first substrate 1 and the second substrate 6 may be made of a synthetic resin film, a nonwoven fabric, a cloth, or the like. Examples of synthetic resin films include polyethylene films, polypropylene films, polybutene films, polybutadiene films, polymethylpentene films, polyvinyl chloride films, vinyl chloride copolymer films, polyethylene terephthalate films, polyethylene naphthalate films, polybutylene terephthalate films, polyurethane films, ethylene-vinyl acetate copolymer films, ionomer resin films, ethylene-(meth)acrylic acid copolymer films, ethylene-(meth)acrylic acid ester copolymer films, polystyrene films, polycarbonate films, and polyimide films. Other stretchable substrates include crosslinked films and laminated films of these. Examples of nonwoven fabrics include spunbond nonwoven fabrics, needle-punched nonwoven fabrics, melt-blown nonwoven fabrics, and spunlace nonwoven fabrics. Examples of cloth include woven fabrics and knitted fabrics. The paper, nonwoven fabric, and cloth used as the stretchable substrate are not limited to these. The thickness of the stretchable substrate is not particularly limited, and is preferably 10 μm to 10 mm, more preferably 15 μm to 3 mm, and even more preferably 50 μm to 1.5 mm.

[0026] (pseudo seat structure) The first pseudo sheet structure 2 has a structure in which a plurality of first conductive linear members 21 are arranged at intervals from one another. The first pseudo sheet structure 2 also has a structure in which a plurality of first conductive linear members 21 are arranged in a direction intersecting the axial direction of the first conductive linear members 21. Similarly, the second pseudo sheet structure 7 has a structure in which a plurality of second conductive linear members 71 are arranged at intervals from one another. The second pseudo sheet structure 7 also has a structure in which a plurality of second conductive linear members 71 are arranged in a direction intersecting the axial direction of the second conductive linear members 71.

[0027] The first conductive linear body 21 and the second conductive linear body 71 may be linear or wavy in a plan view of the wiring sheet 100. Examples of the wavy shape include a sine wave, a rectangular wave, a triangular wave, and a sawtooth wave. For example, if the first pseudo sheet structure 2 has such a structure, breakage of the first conductive linear body 21 can be suppressed when the wiring sheet 100 is stretched in the axial direction of the first conductive linear body 21.

[0028] The volume resistivity of the first conductive linear body 21 is 1.0×10 -9 Ω m or more 1.0×10 -5 It is preferable that the resistance is 5.0×10 Ω·m or less. -9 Ω m or more 5.0×10 -6 If the volume resistivity of the first conductive linear body 21 is in the above range, when the first conductive linear body 21 and the second conductive linear body 71 are electrically connected, the heat generation in the first conductive linear body 21 can be reduced and the heat generation in the second conductive linear body 71 can be increased. The volume resistivity of the second conductive linear body 71 is 1.0×10 -9 Ω m or more 1.0×10 -3It is preferable that the resistance is Ω·m or less, and 1.0×10 -8 Ω m or more 1.0×10 -4 It is more preferable that the volume resistivity is Ω·m or less. When the volume resistivity of the second conductive linear members 71 is in the above range, the surface resistance of the second pseudo sheet structure 7 tends to decrease. The volume resistivity of the first conductive linear body 21 and the second conductive linear body 71 is measured as follows. Silver paste is applied to one end of the first conductive linear body 21 or the second conductive linear body 71 and to a section 40 mm from the end, and the resistance of the end and the section 40 mm from the end is measured to determine the resistance value of the first conductive linear body 21 or the second conductive linear body 71. Then, the cross-sectional area (unit: m 2 ) is multiplied by the resistance value, and the obtained value is divided by the measured length (0.04 m) to calculate the volume resistivity of the first conductive linear body 21 or the second conductive linear body 71.

[0029] The cross-sectional shapes of the first conductive linear body 21 and the second conductive linear body 71 are not particularly limited and may be polygonal, flat, elliptical, circular, etc. From the viewpoint of compatibility with the first resin layer 3 and the second resin layer 8, the cross-sectional shapes of the first conductive linear body 21 and the second conductive linear body 71 are preferably elliptical or circular.

[0030] When the first conductive linear body 21 and the second conductive linear body 71 have circular cross sections, the thickness (diameter) D1 of the first conductive linear body 21 and the thickness (diameter) D2 of the second conductive linear body 71 (see FIGS. 2 and 3) are preferably 5 μm or more and 200 μm or less. From the viewpoints of suppressing an increase in sheet resistance and improving the heat generation efficiency and dielectric breakdown resistance characteristics of the wiring sheet 100, the diameter D1 of the first conductive linear body 21 and the diameter D2 of the second conductive linear body 71 are more preferably 8 μm or more and 150 μm or less, and even more preferably 12 μm or more and 100 μm or less. When the cross section of the first conductive linear body 21 and the second conductive linear body 71 is elliptical, it is preferable that the major axis is in the same range as the above-mentioned diameter D1 and diameter D2.

[0031] The diameter D1 of the first conductive linear body 21 and the diameter D2 of the second conductive linear body 71 are determined by observing the first conductive linear body 21 and the second conductive linear body 71 using a digital microscope, measuring the diameters of the first conductive linear body 21 and the second conductive linear body 71 at five randomly selected points, and averaging the measured diameters.

[0032] The spacing L1 of the first conductive linear members 21 (see FIG. 2) and the spacing L2 of the second conductive linear members 71 (see FIG. 3) are preferably 0.3 mm or more and 50 mm or less, more preferably 0.5 mm or more and 30 mm or less, and even more preferably 0.8 mm or more and 20 mm or less. If the spacing between the first conductive linear bodies 21 or the second conductive linear bodies 71 is within the above range, the conductive linear bodies are relatively densely packed, which improves the functionality of the wiring sheet 100, such as maintaining a low resistance of the pseudo-sheet structure.

[0033] The spacing L1 between the first conductive linear members 21 and the spacing L2 between the second conductive linear members 71 are determined, for example, by observing the first conductive linear members 21 of the first pseudo sheet structure 2 using a digital microscope and measuring the spacing between two adjacent first conductive linear members 21. The interval between two adjacent first conductive linear bodies 21 is the length along the direction in which the first conductive linear bodies 21 are arranged, and is the length between opposing portions of the two first conductive linear bodies 21 (see FIG. 2). When the first conductive linear bodies 21 are arranged at irregular intervals, the interval L1 is the average value of the intervals between all adjacent first conductive linear bodies 21. When the second conductive linear bodies 71 are arranged at irregular intervals, the interval L2 is the average value of the intervals between all adjacent second conductive linear bodies 71.

[0034] The first conductive linear body 21 and the second conductive linear body 71 may be formed in any form, but preferably are linear bodies including metal wires (hereinafter also referred to as "metal wire linear bodies"). Metal wires have high thermal conductivity, high electrical conductivity, easy handling, and versatility. Metal wire linear bodies can significantly reduce resistance, and even if the diameter of the metal wire linear body is extremely small, it can still pass a current necessary to heat the wiring sheet 100. This makes it possible to make the first conductive linear body 21 and the second conductive linear body 71 less visible. In other words, when metal wire linear bodies are used as the first conductive linear body 21 and the second conductive linear body 71, the resistance values ​​of the first pseudo sheet structure 2 and the second pseudo sheet structure 7 are reduced, while the light transmittance is likely to be improved. Furthermore, the wiring sheet 100 is likely to generate heat quickly. Furthermore, as described above, linear bodies with small diameters are easily obtained. In addition, examples of the first conductive linear body 21 and the second conductive linear body 71 include, in addition to metal wire linear bodies, linear bodies containing carbon nanotubes and linear bodies in which a conductive coating is applied to a thread.

[0035] The metal wire linear body may be a linear body made of a single metal wire, or may be a linear body made of a plurality of twisted metal wires. Examples of metal wires include wires containing metals such as copper, aluminum, tungsten, iron, molybdenum, nickel, titanium, silver, and gold, or alloys containing two or more metals (e.g., steels such as stainless steel and carbon steel, brass, phosphor bronze, zirconium-copper alloys, beryllium copper, iron-nickel, nichrome, nickel-titanium, Kanthal, Hastelloy, and rhenium-tungsten). Furthermore, the metal wire may be plated with tin, zinc, silver, nickel, chromium, nickel-chromium alloys, or solder, or may be surface-coated with a carbon material, as described below. Wires containing one or more metals selected from tungsten and molybdenum, and alloys containing these metals, are particularly preferred from the viewpoint of low volume resistivity. The metal wire may be a metal wire coated with a carbon material. When the metal wire is coated with a carbon material, the metallic luster of the metal wire is reduced, making it easier to make the metal wire less noticeable. Furthermore, when the metal wire is coated with a carbon material, metal corrosion is also suppressed. Examples of carbon materials that can be used to coat the metal wire include amorphous carbon (such as carbon black, activated carbon, hard carbon, soft carbon, mesoporous carbon, and carbon fiber), graphite, fullerene, graphene, and carbon nanotubes.

[0036] A linear body containing carbon nanotubes can be obtained, for example, by drawing carbon nanotubes into a sheet from the end of a carbon nanotube forest (a growth body in which multiple carbon nanotubes are grown on a substrate so as to be aligned perpendicular to the substrate; sometimes referred to as an "array"), bundling the drawn carbon nanotube sheets, and then twisting the bundles of carbon nanotubes. In this production method, if no twist is applied during twisting, a ribbon-shaped linear body of carbon nanotubes is obtained, whereas if twist is applied, a thread-shaped linear body is obtained. A ribbon-shaped linear body of carbon nanotubes is a linear body in which the carbon nanotubes do not have a twisted structure. Alternatively, a linear body of carbon nanotubes can be obtained by spinning a dispersion of carbon nanotubes. The production of linear carbon nanotubes by spinning can be performed, for example, by the method disclosed in U.S. Patent Application Publication No. 2013 / 0251619 (JP Patent Publication No. 2012-126635). From the viewpoint of obtaining uniformity in the diameter of the carbon nanotube linear bodies, it is desirable to use thread-like carbon nanotube linear bodies, and from the viewpoint of obtaining highly pure carbon nanotube linear bodies, it is preferable to obtain thread-like carbon nanotube linear bodies by twisting a carbon nanotube sheet. The carbon nanotube linear body may be a linear body formed by weaving two or more carbon nanotube linear bodies together. Furthermore, the carbon nanotube linear body may be a linear body formed by combining carbon nanotubes with other conductive materials (hereinafter also referred to as a "composite linear body").

[0037] Examples of composite linear bodies include: (1) a composite linear body in which, in the process of obtaining a carbon nanotube linear body by drawing carbon nanotubes into a sheet form from the end of a carbon nanotube forest, bundling the drawn carbon nanotube sheet, and then twisting the carbon nanotube bundles, a metal element or a metal alloy is supported on the surface of the carbon nanotube forest, sheet, or bundle, or twisted linear body by vapor deposition, ion plating, sputtering, wet plating, or the like; (2) a composite linear body in which bundles of carbon nanotubes are twisted together with linear bodies of a metal element or a metal alloy, or a composite linear body; and (3) a composite linear body in which linear bodies of a metal element or a metal alloy, or a composite linear body, are braided with linear bodies of a carbon nanotube element or a composite linear body. In the composite linear body of (2), a metal may be supported on the carbon nanotubes when twisting the bundles of carbon nanotubes, as in the composite linear body of (1). Furthermore, the composite linear body of (3) is a composite linear body in which two linear bodies are woven together, but it may also be a composite linear body in which three or more carbon nanotube linear bodies, or linear bodies of a single metal or a metal alloy, or composite linear bodies are woven together, as long as it contains at least one linear body of a single metal or a metal alloy, or composite linear body. Examples of metals for the composite linear body include simple metals such as gold, silver, copper, iron, aluminum, nickel, chromium, tin, and zinc, as well as alloys containing at least one of these simple metals (such as copper-nickel-phosphorus alloys and copper-iron-phosphorus-zinc alloys).

[0038] The first conductive linear body 21 and the second conductive linear body 71 may be linear bodies formed by applying a conductive coating to the thread. Examples of the thread include threads spun from resins such as nylon and polyester. Other examples of the thread include threads made of metal fiber, carbon fiber, and ion-conductive polymer fiber. Examples of the conductive coating include coatings made of metal, conductive polymer, carbon material, etc. The conductive coating can be formed by plating, vapor deposition, etc. A linear body formed by applying a conductive coating to the thread can improve the conductivity of the linear body while maintaining the flexibility of the thread. In other words, it becomes easier to reduce the resistance of the first pseudo sheet structure 2 and the second pseudo sheet structure 7.

[0039] The first conductive linear body 21 is preferably gold-plated from the viewpoint of suppressing contact resistance between the first conductive linear body 21 and the first electrode 41 and the second electrode 42. By gold-plating the first conductive linear body 21, the resistance value of the first pseudo sheet structure 2 is stabilized, which makes it easier to suppress uneven heat generation. Moreover, from the same viewpoint, the second conductive linear body 71 is also preferably gold-plated.

[0040] (resin layer) The first resin layer 3 and the second resin layer 8 are layers containing resin. The first resin layer 3 can directly or indirectly support the first pseudo sheet structure 2. The second resin layer 8 can directly or indirectly support the second pseudo sheet structure 7. The first resin layer 3 and the second resin layer 8 are preferably layers containing an adhesive. For example, when forming the first pseudo sheet structure 2 on the first resin layer 3, the adhesive makes it easy to attach the first conductive linear member 21 to the first resin layer 3.

[0041] The first resin layer 3 and the second resin layer 8 may be layers made of a dryable or curable resin. This provides the first resin layer 3 and the second resin layer 8 with sufficient hardness to protect the first pseudo sheet structure 2 and the second pseudo sheet structure 7, and the first resin layer 3 and the second resin layer 8 also function as a protective film. Furthermore, after curing or drying, the first resin layer 3 and the second resin layer 8 have impact resistance, and can also suppress deformation of the wiring sheet 100 due to impact.

[0042] The first resin layer 3 and the second resin layer 8 are preferably energy ray-curable, such as ultraviolet rays, visible energy rays, infrared rays, or electron beams, since they can be easily cured in a short time. Note that "energy ray curing" also includes heat curing by heating using energy rays.

[0043] The adhesive contained in the first resin layer 3 and the second resin layer 8 may be a thermosetting adhesive that hardens when heated, a so-called heat-seal type adhesive that bonds when heated, or an adhesive that becomes adhesive when moistened. However, for ease of application, it is preferable that the first resin layer 3 and the second resin layer 8 are energy ray-curable. Examples of energy ray-curable resins include compounds having at least one polymerizable double bond in the molecule, and acrylate compounds having a (meth)acryloyl group are preferred.

[0044] Examples of the acrylate-based compound include (meth)acrylates containing a chain aliphatic skeleton (trimethylolpropane tri(meth)acrylate, tetramethylolmethane tetra(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol monohydroxypenta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, 1,4-butylene glycol di(meth)acrylate, and 1,6-hexanediol di(meth)acrylate. acrylates, etc.), alicyclic skeleton-containing (meth)acrylates (dicyclopentanyl di(meth)acrylate, dicyclopentadiene di(meth)acrylate, etc.), polyalkylene glycol (meth)acrylates (polyethylene glycol di(meth)acrylate, etc.), oligoester (meth)acrylates, urethane (meth)acrylate oligomers, epoxy-modified (meth)acrylates, polyether (meth)acrylates other than the above-mentioned polyalkylene glycol (meth)acrylates, and itaconic acid oligomers.

[0045] The weight average molecular weight (Mw) of the energy ray curable resin is preferably 100 or more and 30,000 or less, and more preferably 300 or more and 10,000 or less.

[0046] The adhesive composition may contain one or more types of energy ray-curable resins, and when two or more types are contained, the combination and ratio thereof can be selected arbitrarily. Furthermore, the adhesive composition may contain a thermoplastic resin described below, and the combination and ratio thereof can be selected arbitrarily.

[0047] The first resin layer 3 and the second resin layer 8 may be adhesive layers formed from an adhesive (pressure-sensitive adhesive). The adhesive of the adhesive layer is not particularly limited. Examples of adhesives include acrylic adhesives, urethane adhesives, rubber adhesives, polyester adhesives, silicone adhesives, and polyvinyl ether adhesives. Among these, the adhesive is preferably at least one selected from the group consisting of acrylic adhesives, urethane adhesives, and rubber adhesives, and more preferably an acrylic adhesive.

[0048] Examples of acrylic adhesives include polymers containing structural units derived from alkyl (meth)acrylates having a linear alkyl group or a branched alkyl group (i.e., polymers obtained by polymerizing at least alkyl (meth)acrylates), acrylic polymers containing structural units derived from (meth)acrylates having a cyclic structure (i.e., polymers obtained by polymerizing at least (meth)acrylates having a cyclic structure), etc. Here, the term "(meth)acrylate" is used to refer to both "acrylate" and "methacrylate," and the same applies to other similar terms.

[0049] When the acrylic polymer is a copolymer, the form of the copolymerization is not particularly limited, and the acrylic copolymer may be any of a block copolymer, a random copolymer, or a graft copolymer.

[0050] When the acrylic polymer is a copolymer, the form of the copolymerization is not particularly limited, and the acrylic copolymer may be any of a block copolymer, a random copolymer, or a graft copolymer.

[0051] The acrylic copolymer may be crosslinked with a crosslinking agent. Examples of the crosslinking agent include known epoxy crosslinking agents, isocyanate crosslinking agents, aziridine crosslinking agents, and metal chelate crosslinking agents. When the acrylic copolymer is crosslinked, a functional group derived from the monomer component of the acrylic polymer, such as a hydroxyl group or a carboxyl group that reacts with these crosslinking agents, can be introduced into the acrylic copolymer.

[0052] When the first resin layer 3 and the second resin layer 8 are formed from an adhesive, the first resin layer 3 and the second resin layer 8 may further contain the above-mentioned energy ray-curable resin in addition to the adhesive. Furthermore, when an acrylic adhesive is used as the adhesive, a compound having both a functional group reactive with a functional group derived from a monomer component in an acrylic copolymer and an energy ray-polymerizable functional group in one molecule may be used as the energy ray-curable component. The reaction between the functional group of the compound and the functional group derived from the monomer component in the acrylic copolymer makes the side chain of the acrylic copolymer curable by energy ray irradiation. Even when the adhesive is not an acrylic adhesive, a component whose side chain is energy ray-polymerizable may also be used as the polymer component other than the acrylic polymer.

[0053] The thermosetting resin used in the first resin layer 3 and the second resin layer 8 is not particularly limited, and specific examples include epoxy resins, phenolic resins, melamine resins, urea resins, polyester resins, urethane resins, acrylic resins, benzoxazine resins, phenoxy resins, amine compounds, and acid anhydride compounds. These can be used alone or in combination of two or more. Among these, epoxy resins, phenolic resins, melamine resins, urea resins, amine compounds, and acid anhydride compounds are preferred because they are suitable for curing using an imidazole curing catalyst. In particular, epoxy resins, phenolic resins, mixtures thereof, or mixtures of epoxy resins with at least one selected from the group consisting of phenolic resins, melamine resins, urea resins, amine compounds, and acid anhydride compounds are preferred because they exhibit excellent curability.

[0054] The moisture-curable resin used in the first resin layer 3 and the second resin layer 8 is not particularly limited, and examples thereof include urethane resins and modified silicone resins, which are resins that generate isocyanate groups when exposed to moisture.

[0055] When an energy ray curable resin is used as the resin used for the first resin layer 3 and the second resin layer 8, it is preferable to use a photopolymerization initiator or the like. Furthermore, when a thermosetting resin is used as the resin used for the first resin layer 3 and the second resin layer 8, it is preferable to use a thermal polymerization initiator or the like. By using a photopolymerization initiator, a thermal polymerization initiator or the like in the first resin layer 3 and the second resin layer 8, a crosslinked structure is formed in the first resin layer 3 and the second resin layer 8, making it possible to more firmly protect the first pseudo sheet structure 2 and the second pseudo sheet structure 7.

[0056] Examples of the photopolymerization initiator include benzophenone, acetophenone, benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, benzoin benzoic acid, benzoin methyl benzoate, benzoin dimethyl ketal, 2,4-diethylthioxanthone, 1-hydroxycyclohexyl phenyl ketone, benzyl diphenyl sulfide, tetramethylthiuram monosulfide, azobisisobutyronitrile, 2-chloroanthraquinone, diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, and bis(2,4,6-trimethylbenzoyl)-phenyl-phosphine oxide.

[0057] Examples of the thermal polymerization initiator include hydrogen peroxide, peroxodisulfates (ammonium peroxodisulfate, sodium peroxodisulfate, potassium peroxodisulfate, etc.), azo compounds (2,2'-azobis(2-amidinopropane) dihydrochloride, 4,4'-azobis(4-cyanovaleric acid), 2,2'-azobisisobutyronitrile, 2,2'-azobis(4-methoxy-2,4-dimethylvaleronitrile), etc.), and organic peroxides (benzoyl peroxide, lauroyl peroxide, peracetic acid, persuccinic acid, di-t-butyl peroxide, t-butyl hydroperoxide, cumene hydroperoxide, etc.).

[0058] These polymerization initiators can be used alone or in combination of two or more. When forming a crosslinked structure using these polymerization initiators, the amount used is preferably 0.1 parts by mass or more and 100 parts by mass or less, more preferably 1 part by mass or more and 100 parts by mass or less, and even more preferably 1 part by mass or more and 10 parts by mass or less, relative to 100 parts by mass of at least one curable resin selected from the energy ray-curable resin and the thermosetting resin.

[0059] The first resin layer 3 and the second resin layer 8 may be layers made of a non-curable thermoplastic resin composition, for example. The thermoplastic resin layer can be softened by adding a solvent to the thermoplastic resin composition. This makes it easier to attach the first conductive linear member 21 to the first resin layer 3, for example, when forming the first pseudo sheet structure 2 on the first resin layer 3. Meanwhile, the thermoplastic resin layer can be dried and solidified by volatilizing the solvent in the thermoplastic resin composition.

[0060] Examples of the thermoplastic resin include polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyvinyl acetate, polyurethane, polyether, polyethersulfone, polyimide, and acrylic resin. Examples of the solvent include alcohol-based solvents, ketone-based solvents, ester-based solvents, ether-based solvents, hydrocarbon-based solvents, alkyl halide-based solvents, and water.

[0061] The first resin layer 3 and the second resin layer 8 may contain an inorganic filler. By containing an inorganic filler, the hardness of the first resin layer 3 and the second resin layer 8 after curing can be further improved.

[0062] Examples of inorganic fillers include inorganic powders (such as silica, alumina, talc, calcium carbonate, titanium white, red iron oxide, silicon carbide, and boron nitride powders), beads obtained by spheroidizing inorganic powders, single-crystal fibers, and glass fibers. Among these, silica fillers and alumina fillers are preferred as inorganic fillers. One type of inorganic filler may be used alone, or two or more types may be used in combination.

[0063] The first resin layer 3 and the second resin layer 8 may contain other components, such as well-known additives such as organic solvents, flame retardants, tackifiers, ultraviolet absorbers, antioxidants, preservatives, antifungal agents, plasticizers, antifoaming agents, and wettability adjusters.

[0064] The first resin layer 3 and the second resin layer 8 may or may not be curable. When arranging the first conductive linear body 21 in the first resin layer 3 and when arranging the second conductive linear body 71 in the second resin layer 8, it is preferable that the first resin layer 3 and the second resin layer 8 have tackiness for ease of arrangement. In this case, it is preferable that the first resin layer 3 and the second resin layer 8 have high tackiness. On the other hand, it is preferable that the first resin layer 3 and the second resin layer 8 have low tackiness so that the second pseudo sheet structure 7 and the first pseudo sheet structure 2 return to a non-contact state when a transition is made from a state in which stress is applied in a direction from the second pseudo sheet structure 7 to the first pseudo sheet structure 2 to a state in which the stress is not applied. In this case, it is preferable that the first resin layer 3 and the second resin layer 8 do not have tackiness. From this viewpoint, it is preferable that the first resin layer 3 and the second resin layer 8 are curable, and more preferably are curable adhesive layers containing an energy ray-curable resin. Here, tackiness refers to a sticky feeling that occurs on the surface of a substance. In this embodiment, tackiness refers to a sticky feeling that occurs on the surfaces of the first resin layer 3 and the second resin layer 8. With this configuration, when the first resin layer 3 comes into contact with the second pseudo sheet structure 7, it is possible to prevent the first resin layer 3 from maintaining contact with the second pseudo sheet structure 7.

[0065] The thicknesses of the first resin layer 3 and the second resin layer 8 are determined depending on the application of the wiring sheet 100. For example, from the viewpoint of adhesiveness, the thicknesses of the first resin layer 3 and the second resin layer 8 are preferably 3 μm or more and 150 μm or less, and more preferably 5 μm or more and 100 μm or less.

[0066] (electrode) The first electrode 41 and the second electrode 42 are used to supply current to the first conductive linear body 21. The first electrode 41 and the second electrode 42 form a pair. The first electrode 41 is electrically connected to one or more of the first conductive linear bodies 21. The second electrode 42 is electrically connected to those of the first conductive linear bodies 21 that are not electrically connected to the first electrode 41. It is preferable that the multiple arranged first conductive linear bodies 21 be in alternate contact with the first electrode 41 and the second electrode 42. With this configuration, in a plan view of the wiring sheet 100, the intersections of the first conductive linear bodies 21 and the second conductive linear bodies 71 can be arranged without variation. The first electrode 41 and the second electrode 42 can be formed using a known electrode material. Examples of the electrode material include a conductive paste (such as silver paste), a metal foil (such as copper foil), and a metal wire. When the electrode material is a metal wire, the number of metal wires may be one, but is preferably two or more.

[0067] When the electrode material is a metal foil or metal wire, examples of the metal for the metal foil or metal wire include copper, aluminum, tungsten, iron, molybdenum, nickel, titanium, silver, gold, etc., or alloys containing two or more metals (for example, steels such as stainless steel and carbon steel, brass, phosphor bronze, zirconium-copper alloys, beryllium copper, iron-nickel, nichrome, nickel-titanium, Kanthal, Hastelloy, and rhenium-tungsten, etc.). The metal foil or metal wire may also be plated with gold, tin, zinc, silver, nickel, chromium, nickel-chromium alloys, solder, etc.

[0068] The width of one of first electrode 41 and second electrode 42 is preferably 10 mm or less, more preferably 3000 μm or less, and even more preferably 1500 μm or less, in a plan view of wiring sheet 100. When one electrode is a metal wire, the width of the electrode is the diameter of the metal wire, and when two or more metal wires are used, the width of one electrode refers to the sum of the diameters of the metal wires.

[0069] The thickness of the first electrode 41 and the second electrode 42 is preferably 2 μm or more and 200 μm or less, more preferably 2 μm or more and 170 μm or less, and even more preferably 10 μm or more and 150 μm or less. If the thickness of the first electrode 41 and the second electrode 42 is within the above range, the electrical conductivity is high and the resistance is low, and the resistance value with the pseudo sheet structure can be kept low. In addition, sufficient strength as an electrode can be obtained. Note that, when the electrode is a metal wire, the thickness of the electrode is the diameter of the metal wire.

[0070] (Spacer member) As shown in Figures 1 and 4, the wiring sheet 100 includes a spacer member 5. The spacer member 5 is used to separate the first pseudo sheet structure 2, the first electrode 41, and the second electrode 42 from the second pseudo sheet structure 7. Without being limited to this, the wiring sheet 100 of this embodiment may or may not include the spacer member 5, as long as the second pseudo sheet structure 7 can be positioned at a distance so as to face the first pseudo sheet structure 2. The spacer member 5 is a member that is provided as needed. The locations where spacer members 5 are provided are not particularly limited, as long as they are located at locations other than the locations where first conductive linear members 21 and second conductive linear members 71 intersect in a plan view of wiring sheet 100. For example, as shown in Figs. 1 and 4, spacer members 5 may be provided at four corners of wiring sheet 100.

[0071] Because the wiring sheet 100 includes the spacer member 5, it is easier to maintain a state in which the first pseudo sheet structure 2 and the second pseudo sheet structure 7 are not in contact when no stress is applied in the direction from the second pseudo sheet structure 7 to the first pseudo sheet structure 2. Therefore, the wiring sheet 100 maintains an insulated state by including the spacer member 5. When stress is applied in the direction from the second pseudo sheet structure 7 to the first pseudo sheet structure 2, for example, the second pseudo sheet structure 7 and the first pseudo sheet structure 2 deform, or the spacer member 5 deforms, causing the second pseudo sheet structure 7 and the first pseudo sheet structure 2 to come into contact.

[0072] The material of the spacer member 5 is not particularly limited as long as it is an insulating material. Known insulating materials can be used for the spacer member 5. The spacer member 5 may be in the form of, for example, a sheet, a strip, or a line. The material of the spacer member 5 may be, for example, a material containing a thermoplastic resin. Examples of thermoplastic resins include polyolefin resins, polyester resins, polyamide resins, polyimide resins, and polyamideimide resins. When the spacer member 5 contains a thermoplastic resin, examples of the material include films, resin foams, fabrics, and nonwoven fabrics containing these thermoplastic resins. The form of the spacer member 5 is not limited as long as the second pseudo sheet structure 7 and the first pseudo sheet structure 2 can come into contact when stress is applied in the direction from the second pseudo sheet structure 7 to the first pseudo sheet structure 2.

[0073] The thickness of the spacer member 5 is not particularly limited as long as it can separate the first pseudo sheet structure 2 and the second pseudo sheet structure 7. The thickness of the spacer member 5 may be, for example, 5 mm or less, or may be 0.1 mm or more and 3 mm or less. Regarding the insulating properties of the spacer member 5, the volume resistivity of the spacer member 5 is 10 12 It may be Ω·cm or more.

[0074] (Method of manufacturing wiring sheet) There are no particular limitations on the method for manufacturing interconnect sheet 100 according to this embodiment. Interconnect sheet 100 can be manufactured, for example, by the following steps. First, a composition for forming the first resin layer 3 is applied onto the first substrate 1 to form a coating film. Next, the coating film is dried to produce the first resin layer 3. Next, first conductive linear members 21 are arranged and disposed on the first resin layer 3 to form a first pseudo sheet structure 2. For example, with the first resin layer 3 with the first substrate 1 disposed on the outer circumferential surface of a drum member, the drum member is rotated and the first conductive linear members 21 are spirally wound around the first resin layer 3. Then, the bundle of spirally wound first conductive linear members 21 is cut along the axial direction of the drum member. This forms the first pseudo sheet structure 2 and places it on the first resin layer 3. The first resin layer 3 with the first substrate 1 formed thereon is then removed from the drum member to obtain a first sheet-like conductive member. According to this method, for example, by rotating the drum member and moving the payout portion of the first conductive linear member 21 along a direction parallel to the axis of the drum member, it is easy to adjust the spacing L1 between adjacent first conductive linear members 21 in the first pseudo sheet structure 2. Next, the first electrode 41 and the second electrode 42 are attached to both end portions of the first conductive linear body 21 in the first pseudo sheet structure 2 of the sheet-like conductive member. At this time, the first electrode 41 is electrically connected to one or more of the first conductive linear bodies 21. The second electrode 42 is electrically connected to the first conductive linear body 21 that is not electrically connected to the first electrode 41. To achieve this, a part of the first conductive linear body 21 may be cut to shorten it, or insulating tape may be attached to one of the end portions of the first conductive linear body 21. Next, a second sheet-like conductive member is produced using the same method as for producing the first sheet-like conductive member described above, the second sheet-like conductive member including a second substrate 6, a second pseudo sheet structure 7, and a second resin layer 8. Then, the second resin layer 8 of the second sheet-like conductive member is cured. Next, a spacer member 5 is placed on the first sheet-like conductive member provided with the first electrode 41 and the second electrode 42, and the first resin layer 3 is cured. Furthermore, a second sheet-like conductive member with a cured second resin layer 8 is placed on top of this, spaced apart so that the second pseudo sheet structure 7 faces the first pseudo sheet structure 2. In this manner, wiring sheet 100 can be produced.

[0075] (Operation and effect of the first embodiment) According to this embodiment, the following effects can be achieved. (1) In wiring sheet 100, the resistance value differs between any of second conductive linear bodies 71 between intersections, and therefore the amount of current can be changed for each of the intersections. (2) Interconnection sheet 100 can selectively conduct electricity to a portion that is contacted with a hand or the like and subjected to pressure, thereby providing interconnection sheet 100 with a pressure-sensitive function.

[0076] [Second embodiment] Next, a second embodiment of the present invention will be described with reference to the drawings. The present invention is not limited to the content of this embodiment. Note that in the drawings, some parts are illustrated enlarged or reduced in size for ease of explanation. The second embodiment differs from the first embodiment in that, in a plan view of the wiring sheet 100A, a contact fixing portion 9 is provided at a portion of the intersection between the first conductive linear body 21 and the second conductive linear body 71. In the following description, differences from the first embodiment will be mainly described, and overlapping descriptions will be omitted or simplified. The same components as those in the first embodiment will be assigned the same reference numerals, and descriptions thereof will be omitted or simplified.

[0077] As shown in FIG. 5, the wiring sheet 100A of this embodiment comprises a first substrate 1, a first pseudo sheet structure 2 in which a plurality of first conductive linear members 21 are arranged at intervals, a first resin layer 3, a first electrode 41, a second electrode 42, a spacer member 5, a second substrate 6, a second pseudo sheet structure 7 in which a plurality of second conductive linear members 71 are arranged at intervals, and a second resin layer 8. The wiring sheet 100A is provided with a contact fixing portion 9 at a location where, in a plan view of the wiring sheet 100A, the first conductive linear body 21 electrically connected to the second electrode 42 among the first conductive linear body 21 intersects with the second conductive linear body 71. The contact fixing portion 9 electrically connects the first conductive linear body 21 electrically connected to the second electrode 42 with the second conductive linear body 71. The first conductive linear body 21 electrically connected to the first electrode 41 may be electrically connected to the second conductive linear body 71. Such a structure can improve pressure sensitivity as follows. That is, in the wiring sheet 100 according to the first embodiment described above, when stress is applied to the wiring sheet 100, connection points are formed where the first conductive linear body 21 and the second conductive linear body 71 are electrically connected. When two or more such connection points are formed, electricity can flow between the connection points. In contrast, in the wiring sheet 100A, connection points that are connected in advance by the contact fixing portion 9 exist. Therefore, electricity can be passed between the connection points even if just one other connection point is formed adjacent to the connection point. Therefore, pressure sensitivity can be improved compared to the wiring sheet 100.

[0078] The contact fixing portion 9 can ensure stable electrical connection between the first conductive linear member 21 and the second conductive linear member 71. The contact fixing portion 9 may be made of at least one material selected from the group consisting of metal, adhesive, and caulking. Examples of the metal include solder. When solder is used, the first conductive linear body 21 and the second conductive linear body 71 can be joined by soldering. As the solder alloy, a known solder alloy can be used, and for example, a lead-free solder containing tin, silver, and copper can be used. The adhesive can be the same as that used in the first resin layer 3 described above. The adhesive may also be a conductive adhesive. From the viewpoint of firmly fixing the first conductive linear body 21 and the second conductive linear body 71, the adhesive is preferably a curable adhesive. Examples of the curable adhesive include a thermosetting adhesive that is cured by heat and an energy ray-curable adhesive. Examples of the energy ray include ultraviolet light, visible energy rays, infrared rays, and electron beams. The term "energy ray curing" also includes thermal curing by heating using energy rays. As for the crimping, the contact point between the first conductive linear body 21 and the second conductive linear body 71 is crimped, whereby the contact point fixing portion 9 can be provided.

[0079] The contact fixing portion 9 can be formed by melting and solidifying the resin that constitutes at least one of the first substrate 1, the first resin layer 3, the second substrate 6, and the second resin layer 8. More specifically, the contact fixing portion 9 can be formed by at least one method selected from the group consisting of a heat press method, a high-frequency welder fusion method, a hot air fusion method, a hot plate fusion method, and an ultrasonic welder fusion method. Among these methods, the ultrasonic welder fusion method is preferred because it can melt the material in a short time.

[0080] (Operation and effect of the second embodiment) According to this embodiment, in addition to the effects (1) and (2) of the first embodiment, the following effect (3) can be achieved. (3) In wiring sheet 100A, there are connection points that are previously connected by contact fixing portions 9. Therefore, if even one other connection point is created adjacent to this connection point, electricity can be passed through. Therefore, sensitivity to pressure can be improved compared to wiring sheet 100.

[0081] [Third embodiment] Next, a third embodiment of the present invention will be described with reference to the drawings. The present invention is not limited to the content of this embodiment. Note that in the drawings, some parts are illustrated enlarged or reduced in size for ease of explanation. In the third embodiment, the method for providing the first electrode 41 and the second electrode 42 is different from that in the first embodiment. In the following description, differences from the first embodiment will be mainly described, and overlapping descriptions will be omitted or simplified. The same components as those in the first embodiment will be assigned the same reference numerals, and descriptions thereof will be omitted or simplified.

[0082] 6 , an insulating member 10 is provided at one of both ends of the first conductive linear body 21. The second and fourth first conductive linear bodies 21 from the left have the insulating member 10 provided between the first conductive linear body 21 and the first electrode 41, and therefore the first conductive linear body 21 and the first electrode 41 are not electrically connected to each other. On the other hand, the first, third, and fifth first conductive linear bodies 21 from the left have the insulating member 10 provided between the first conductive linear body 21 and the second electrode 42, and therefore the first conductive linear body 21 and the second electrode 42 are not electrically connected to each other. In this way, the first electrode 41 is electrically connected to the first, third, and fifth first conductive linear members 21 from the left side. The second electrode 42 is electrically connected to the second and fourth first conductive linear members 21 from the left side that are not electrically connected to the first electrode 41. With this structure, unlike the wiring sheet 100 according to the first embodiment described above, the first electrode 41 can be electrically connected to a portion of the first conductive linear body 21 without having to shorten that portion of the first conductive linear body 21, and the second electrode 42 can be electrically connected to the portion of the first conductive linear body 21 that is not electrically connected to the first electrode 41. As the insulating member 10, a known insulating tape or the like can be used as appropriate, for example, a polyimide tape.

[0083] (Operation and effect of the third embodiment) According to this embodiment, in addition to the effect (1) of the first embodiment, the following effect (4) can be achieved. (4) The first electrode 41 can be electrically connected to a part of the first conductive linear body 21 without shortening a part of the first conductive linear body 21, and the second electrode 42 can be electrically connected to a part of the first conductive linear body 21 that is not electrically connected to the first electrode 41.

[0084] [Modification of the embodiment] The present invention is not limited to the above-described embodiment, and includes modifications and improvements within the scope of achieving the object of the present invention. For example, in the above-described embodiment, interconnect sheet 100 includes first substrate 1 and second substrate 6, but is not limited to this. For example, interconnect sheet 100 does not have to include first substrate 1 and second substrate 6. In such a case, interconnect sheet 100 can be used by being attached to an adherend by first resin layer 3 or second resin layer 8. [Explanation of symbols]

[0085] 1...first substrate, 2...first pseudo sheet structure, 21...first conductive linear body, 3...first resin layer, 41...first electrode, 42...second electrode, 5...spacer member, 6...second substrate, 7...second pseudo sheet structure, 71...second conductive linear body, 8...second resin layer, 9...contact fixing portion, 10...insulating member, 100, 100A...wiring sheet.

Claims

1. a first pseudo sheet structure in which a plurality of first conductive linear bodies are arranged at intervals; a first electrode electrically connected to one or more of the first conductive linear bodies; a second electrode paired with the first electrode and electrically connected to the first conductive linear body that is not electrically connected to the first electrode; a second pseudo sheet structure in which a plurality of second conductive linear members are arranged at intervals, the second pseudo sheet structure is disposed opposite to and spaced from the first pseudo sheet structure, and is not electrically connected to the first electrode and the second electrode; the volume resistivity of the first conductive linear body is smaller than the volume resistivity of the second conductive linear body, In a plan view of the wiring sheet, the first conductive linear body and the second conductive linear body intersect at each intersection point, When the first pseudo sheet structure and the second pseudo sheet structure are electrically connected, a resistance value is different between any of the second conductive linear bodies between the intersections, the intervals between any of the first conductive linear bodies are different, The thickness of any of the second conductive linear bodies is different from that of the other. Wiring sheet.

2. The wiring sheet according to claim 1 , The second pseudo-sheet structure is When no stress is applied in a direction from the second false seat structure to the first false seat structure, the second false seat structure is not in contact with the first false seat structure, When a stress is applied in a direction from the second false seat structure to the first false seat structure, the second false seat structure comes into contact with the first false seat structure. Wiring sheet.

3. The wiring sheet according to claim 1 or 2, Further provided is a resin layer supporting the first pseudo sheet structure, The resin layer is When the resin layer comes into contact with the second pseudo sheet structure, the resin layer does not maintain contact with the second pseudo sheet structure. Wiring sheet.

4. The wiring sheet according to any one of claims 1 to 3, the first electrode is electrically connected to the second conductive linear body, or the second electrode is electrically connected to the second conductive linear body; Wiring sheet.

5. The wiring sheet according to any one of claims 1 to 4, The wiring sheet is a spacer member separating the first pseudo seat structure from the second pseudo seat structure; Wiring sheet.

6. The wiring sheet according to any one of claims 1 to 5, the first conductive linear body and the second conductive linear body are gold-plated linear bodies, Wiring sheet.

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