JP2021002274A - Wiring body, wiring board, and touch sensor - Google Patents

Abstract

To provide a wiring body which can improve visibility and can suppress increase of resistance of an electrode pattern.SOLUTION: A wiring body according to the present invention has a first mesh-shaped electrode pattern intersecting with a first conductor line 321, a second mesh-shaped electrode pattern intersecting with a second conductor line 521, a first dummy pattern 37 including a first dummy fine line 371, and a second dummy pattern 57 including a second dummy fine line 571. In a plan view, the first dummy pattern 37 is overlapped with the second electrode pattern, and the second dummy pattern 57 is overlapped with the first electrode pattern. Further, the following expressions are satisfied: W1>WD1, W2>WD1, W1>WD2, W2>WD2, where W1 means a line width of the first conductor line 321, W2 means a line width of the second conductor line 521, WD1 means a line width of the first dummy fine line 371, and WD2 means a line width of the second dummy fine line 571.SELECTED DRAWING: Figure 7

Description

The present invention relates to a wiring body, a wiring board, and a touch sensor.

It has a first electrode pattern including a plurality of lattices composed of fine metal wires and a second electrode pattern including a plurality of lattices composed of fine metal wires, and in top view, a lattice of the first electrode pattern and a lattice of the second electrode pattern. A conductive sheet is known which forms a small lattice by overlapping with each other (see, for example, Patent Document 1). The first electrode pattern has a first conductive pattern and a first non-conductive pattern that is insulated from the first conductive pattern, and the second electrode pattern is from the second conductive pattern and the second conductive pattern. It has a second non-conductive pattern that is insulated.

Japanese Unexamined Patent Publication No. 2012-256320

In the above structure, the first conductive pattern and the second non-conductive pattern are overlapped, and the second conductive pattern and the first non-conductive pattern are overlapped to form a small lattice with a uniform pitch to improve visibility. ing. In such a structure, the number of thin metal wires of the first and second conductive patterns must be reduced as compared with the structure that does not form the first and second non-conductive patterns, so that the first and second conductive patterns have There is a problem that the resistance value increases.

An object to be solved by the present invention is to provide a wiring body capable of suppressing an increase in resistance of an electrode pattern while improving visibility, and a wiring board and a touch sensor provided with the wiring body. Is.

[1] The wiring body according to the present invention has a mesh-shaped first electrode pattern formed on one main surface of an insulating portion and the insulating portion and formed by intersecting a plurality of first conductor wires. And a mesh-shaped second electrode pattern formed on the other main surface of the insulating portion and formed by intersecting a plurality of second conductor wires, and formed on one main surface of the insulating portion. , A first dummy pattern electrically insulated from the first electrode pattern, and formed on one main surface or the other main surface of the insulating portion, and insulated from the first and second electrode patterns. The first dummy pattern includes a first dummy wire, the second dummy pattern includes a second dummy wire, and the first dummy pattern includes a second dummy pattern. Wiring that overlaps with the second electrode pattern in plan view and overlaps with the first electrode pattern in plan view and satisfies the following equations (1) to (4). The body.
W ₁ > W _{D 1} ... (1)
W ₂ > W _{D 1} ... (2)
W ₁ > W _D2 ... (3)
W ₂ > W _{D 2} ... (4)
However, in the above equations (1) to (4), W ₁ is the line width of the first conductor wire, W ₂ is the line width of the second conductor wire, and W _{D 1} is the line width of the second conductor wire. a line width of the first dummy thin line, W _D2 is a line width of the second dummy thin line.

[2] In the above invention, the following equations (5) to (8) may be satisfied.
W ₁ ≤ 2.0 x WD ₁ ... (5)
W ₂ ≤ 2.0 × W _{D 1} … (6)
W ₁ ≤ 2.0 × W _D2 … (7)
W ₂ ≤ 2.0 × W _{D 2} … (8)

[3] In the above invention, the first electrode pattern includes a mesh-shaped first main body portion and a mesh-shaped first main body portion that connects the first main body portions to each other. The electrode pattern 2 includes a mesh-shaped second main body portion and a mesh-shaped second main body portion that connects the second main body portions to each other, and the first main body portion is the second main body portion. In the wiring body, the first dummy pattern overlaps the second main body in a plan view, and the second dummy pattern is in a plan view. The first region has a second region that overlaps with the first main body portion, and the first region is adjacent to the second region and satisfies the following formula (9) or (10). You may.
99.38 ≦ (A ₁ / A ₂ ) × 100 ≦ 100… (9)
99.38 ≦ (A ₂ / A ₁ ) × 100 ≦ 100… (10)
However, in the above equations (9) and (10), A ₁ is the mesh opening ratio (%) in the first region, and A ₂ is the mesh opening ratio (%) in the second region.

[4] In the above invention, the wiring body has a third region in which the first connecting portion and the second connecting portion overlap in a plan view, and the following equations (11) and (12) are expressed. It may be satisfied.
99.38 ≤ (A ₃ / A ₁ ) x 100 ≤ 100 ... (11)
99.38 ≦ (A ₃ / A ₂ ) × 100 ≦ 100… (12)
However, in the above (11) and (12), _{A 3} is a mesh opening ratio in the third region (%).

[5] In the above invention, the wiring body does not overlap the first electrode pattern and the second electrode pattern in a plan view, and is between the first region and the second region. It may have a fourth intervening region and satisfy the following equation (13).
99.38 ≤ (A ₃ / A ₄ ) x 100 ≤ 100 ... (13)
However, in the above equation (13), A ₃ is the mesh aperture ratio (%) in the third region, and A ₄ is the mesh aperture ratio (%) in the fourth region.

[6] In the above invention, the following equations (14) and (15) may be satisfied.
W ₁ = W ₂ ... (14)
W _D1 = W _D2 ... (15)

[7] In the above invention, the following formula (16) or (17) may be satisfied.
73 ≦ (D ₁ / D ₂ ) × 100 ≦ 100… (16)
73 ≦ (D ₂ / D ₁ ) × 100 ≦ 100… (17)
However, D ₁ is the diffuse reflectance (%) in the first region, and D ₂ is the diffuse reflectance (%) in the second region.

[8] The wiring board according to the present invention is a wiring board including the above-mentioned wiring body and a support body for supporting the wiring body.

[9] The touch sensor according to the present invention is a touch sensor provided with the above wiring board.

According to the present invention, the first and second conductor wires that include the second and first dummy patterns that overlap the first and second electrode patterns and that form the first and second electrode patterns The line width is larger than the line width of the first and second dummy thin wires constituting the first and second dummy patterns. Therefore, in the present invention, it is possible to improve the visibility and suppress the increase in the resistance of the first and second electrodes.

FIG. 1 is a plan view showing a touch panel according to the first embodiment of the present invention. FIG. 2 is an exploded perspective view showing a touch panel according to the first embodiment of the present invention. FIG. 3 is an enlarged plan view showing a first conductor portion according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. FIG. 5 is a cross-sectional view taken along the line VV of FIG. FIG. 6 is an enlarged plan view showing a second conductor portion according to the first embodiment of the present invention. FIG. 7 is an enlarged plan view showing a state in which the first conductor portion of FIG. 3 and the second conductor portion of FIG. 6 are overlapped with each other. FIG. 8 is an enlarged plan view showing the first conductor portion in the second embodiment of the present invention. FIG. 9 is an enlarged plan view showing a second conductor portion in the second embodiment of the present invention. FIG. 10 is an enlarged plan view showing a state in which the first conductor portion of FIG. 8 and the second conductor portion of FIG. 9 are overlapped with each other.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<< First Embodiment >>
FIG. 1 is a plan view showing a touch panel according to the first embodiment, and FIG. 2 is an exploded perspective view showing a touch panel according to the first embodiment. For convenience, the third insulating portion 60 and the cover panel 70 are not shown in FIG. 1, but in reality, as shown in FIG. 2, the touch sensor 1 has the third insulating portion 60 and the cover. It includes a panel 70.

The touch sensor 1 shown in FIG. 1 is a projection type capacitance type touch panel sensor, and is used as an input device (touch panel) having a function of detecting a touch position in combination with a display device (not shown) or the like. Be done. The display device is not particularly limited, and a liquid crystal display, an organic EL display, electronic paper, or the like can be used. The touch sensor 1 in the present embodiment corresponds to an example of the "touch sensor" in the present invention.

The touch sensor 1 has a detection electrode and a drive electrode (first electrode pattern 31 and second electrode pattern 51, which will be described later) arranged so as to correspond to the display area of the display device, and these two touch sensors 1. A predetermined voltage is periodically applied between the electrodes from an external circuit (not shown).

In such a touch sensor 1, for example, as shown in FIG. 2, when the operator's finger (external conductor) F approaches the touch sensor 1, a capacitor (electrical capacity) is formed between the external conductor F and the touch sensor 1. ) Is formed and the electrical state between the two electrodes changes. The touch sensor 1 can detect the operating position of the operator based on the electrical change between the two electrodes.

As shown in FIG. 2, the touch sensor 1 includes a wiring board 2 including a wiring body 10 and a support 80, and a cover panel 70 attached to one side of the wiring board 2. The wiring body 10 in the present embodiment corresponds to an example of the "wiring body" in the present invention, the support 80 in the present embodiment corresponds to an example of the "support" in the present invention, and the wiring board 2 in the present embodiment corresponds to the example. It corresponds to an example of the "wiring plate" in the present invention.

The support 80 has a rectangular outer shape, and is made of a transparent material in order to ensure the visibility of the display device. Examples of the material constituting the support 80 include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyimide resin (PI), polyetherimide resin (PEI), polycarbonate (PC), and polyetheretherketone (PET). PEEK), liquid crystal polymer (LCP), cycloolefin polymer (COP), silicone resin (SI), acrylic resin, phenol resin, epoxy resin, green sheet, glass and the like can be used. A wiring body 10 is attached to the support body 80, and the wiring body 10 is supported by the support body 80. In this case, the support 80 preferably has a rigidity sufficient to support the wiring body 10.

As shown in FIG. 2, the wiring body 10 includes a first insulating portion 20, a first conductor portion 30, a second insulating portion 40, a second conductor portion 50, and a third insulating portion 60. And have. The wiring body 10 is configured to have transparency (translucency) as a whole in order to ensure the visibility of the display device. The second insulating portion 40 in the present embodiment corresponds to an example of the “insulating portion” in the present invention.

In the present embodiment, the first conductor portion 30 is arranged on the first insulating portion 20, and the second conductor portion 50 is arranged on the second insulating portion 40, so that the first insulating portion 30 is arranged. A second insulating portion 40 is laminated on the portion 20. That is, the first conductor portion 30 is formed on one main surface of the second insulating portion 40, while the second conductor portion 50 is formed on the other main surface of the second insulating portion 40. The first conductor portion 30 and the second conductor portion 50 face each other via the second insulating portion 40.

The second conductor portion 50 is arranged at a position closer to the side where the outer conductor F comes into contact than the first conductor portion 30. That is, the first conductor portion 30 is located on the display device side, and the second conductor portion 50 is located on the operator side (the surface side with which the outer conductor F contacts).

The first insulating portion 20 has a rectangular outer shape, and is made of a resin material having transparency and electrical insulation. Examples of this resin material include UV curable resin, thermosetting resin, thermoplastic resin, and the like, and more specifically, epoxy resin, acrylic resin, polyester resin, urethane resin, vinyl resin, and the like. Examples thereof include silicone resin, phenol resin, and polyimide resin. The lower surface of the first insulating portion 20 is attached to the support 80.

The first conductor portion 30 is provided on the first insulating portion 20, and is held by the first insulating portion 20. The first conductor portion 30 is formed by printing and curing a conductive paste. As a specific example of the conductive paste, a paste obtained by mixing a conductive material and a binder resin with water or a solvent and various additives can be exemplified. The binder resin may be omitted from the conductive paste.

Specific examples of the conductive particles include metal materials and carbon-based materials. More specifically, examples of the metal material include silver, copper, nickel, tin, bismuth, zinc, indium, and palladium. Moreover, as a carbon-based material, graphite, carbon black (furness black, acetylene black, Ketjen black), carbon nanotube, carbon nanofiber and the like can be exemplified. A metal salt may be used as the conductive particles. Specific examples of the metal salt include the above-mentioned metal salt.

Specific examples of the binder resin include acrylic resin, polyester resin, epoxy resin, vinyl resin, urethane resin, phenol resin, polyimide resin, silicone resin, fluororesin and the like. Specific examples of the solvent include α-terpineol, butyl carbitol acetate, butyl carbitol, 1-decanol, butyl cell solve, diethylene glycol monoethyl ether acetate, tetradecane and the like.

As shown in FIGS. 1 and 2, the first conductor portion 30 includes a plurality of first electrode patterns 31, a plurality of first leader wires 34, a plurality of first terminal portions 35, and a plurality of first conductor portions 30. The first dummy pattern 37 and the like are included. The first electrode pattern 31 in the present embodiment corresponds to an example of the "first electrode pattern" in the present invention, and the first dummy pattern 37 in the present embodiment is the "first dummy pattern" in the present invention. Corresponds to one example.

Each of the first electrode patterns 31 extends in the X direction in the figure. The plurality of first electrode patterns 31 are arranged in the Y direction in the drawing. Each of the first electrode patterns 31 includes a plurality of first main body portions 32 and a plurality of first connecting portions 33, as shown in FIGS. 1 and 2. The first main body 32 in the present embodiment corresponds to an example of the "first main body" in the present invention, and the first connecting 33 in the present embodiment is the "first connecting" in the present invention. Corresponds to one example.

The first main body 32 located at both ends of the first electrode pattern 31 has a substantially triangular shape, and the other first main body 32 has a substantially rhombic shape. The plurality of first main body portions 32 are arranged in the extending direction (X direction in the drawing) of the first electrode pattern 31. The first main body portions 32 adjacent to each other are electrically connected to each other via the first connecting portion 33. The electrode width of the first electrode pattern 31 in the first connecting portion 33 is narrower than the electrode width of the first electrode pattern 31 in the first main body portion 32.

FIG. 3 is an enlarged plan view showing the first conductor portion 30. In FIG. 3, the alternate long and short dash line shows the outer shape of the first electrode pattern 31. As shown in FIG. 3, the first electrode pattern 31 has a plurality of linear first conductor wires 321a and 321b. The first conductor wire 321a extends in the first direction D ₁ , while the first conductor wire 321b extends in a _second direction D ₂ different from the _first direction D _1. ing. In the present embodiment, the first conductor wires 321a and 321b are collectively referred to as "first conductor wires". Further, the first conductor wire 321 in the present embodiment corresponds to an example of the "first conductor wire" in the present invention.

The plurality of first conductor wires 321a are arranged at equal intervals (equal pitch), and similarly, the plurality of first conductor wires 321b are also arranged at equal intervals. The first conductor wires 321a and 321b intersect with each other to form a plurality of lattices, and the first main body portion 32 and the first connecting portion 33 are formed from the plurality of first conductor wires 321a and 321b. It is in the form of a mesh composed of lattices. The number of the first conductor wires 321a and 321b constituting the first main body portion 32 and the first connecting portion 33 is not particularly limited.

As described above, the electrode width of the first electrode pattern 31 in the first connecting portion 33 is narrower than the electrode width of the first electrode pattern 31 in the first main body portion 32. In other words, the number of the first conductor wires 321 in the first connecting portion 33 is smaller than the number of the first conductor wires 321 in the first main body portion 32. Therefore, the total cross-sectional area of the first conductor wire 321 when the first connecting portion 33 is cut along the width direction of the first electrode pattern 31 cuts the first main body portion 32 in the same direction. It is smaller than the total cross-sectional area of the first conductor wire 321 at that time. As described above, the connecting portion means a portion in the electrode pattern in which the total cross-sectional area of the conductor wires is relatively small.

FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. As shown in FIG. 4, the first insulating portion 20 has a flat portion 21 and a convex portion 22, and the first conductor wire 321a is provided on the convex portion 22. The first conductor wire 321a has a tapered shape that gradually narrows as the distance from the first insulating portion 20 increases when the cross section cut in the width direction of the first conductor wire 321a is viewed. In the first conductor wire 321a, the first contact surface 321c in contact with the convex portion 22 is relatively rough with respect to the second contact surface 321d in contact with the second insulating portion 40.

Specifically, the surface roughness Ra of the first contact surface 321c is 0.1 μm to 3 μm, whereas the surface roughness Ra of the second contact surface 321d is 0.001 μm to 1.0 μm. It has become. This surface roughness Ra is the "arithmetic mean roughness Ra" defined in the JIS method (JIS B0601 (revised on March 21, 2013)). The first conductor wire 321b also has the same cross-sectional shape as the first conductor wire 321a shown in FIG.

Further, in the present embodiment, the line width W ₁ of the first conductor wire 321 is constant along the extending direction (first direction D ₁ or second direction D ₂ ). In the present embodiment, the line width W ₁ of the first conductor wire 321 is larger than the line width W _{D 1} (described later) of the first dummy thin wire 371 of the first dummy pattern 37 as shown in the following equation (18). It's getting fat.
W ₁ > W _{D 1} ... (18)

In particular, the line width W ₁ of the first conductor wire 321 is less than twice the line width W _D1 (described later) of the first dummy thin wire 371 of the first dummy pattern 37, as shown in the following equation (19). It is preferable to have. As described above, the line width W ₁ of the first conductor wire 321 is not more than twice the line width W _{D1 of} the first dummy thin wire 371, so that the first conductor wire 321 and the first dummy Deterioration of visibility due to the difference in line width of the thin wire 371 can be suppressed.
W ₁ ≤ 2.0 × WD ₁ … (19)

Specifically, the line width W ₁ of the first conductor wires 321a and 321b is preferably 1.0 μm or more and 4.5 μm or less (1.0 μm ≦ W ₁ ≦ 4.5 μm). The line width of the first conductor wire 321a means the line width of the widest portion when the cross section cut in the width direction of the first conductor wire 321a is viewed, and the line width of the first conductor wire 321a is shown in FIG. Corresponds to the line width W1 on the contact surface 321c of ₁ . The same applies to the first conductor wire 321b, and the first conductor wire 321b has the same line width as the first conductor wire 321a.

As shown in FIGS. 1 and 2, one end of the first leader wire 34 is connected to one end in the longitudinal direction of each of the first electrode patterns 31. A first terminal portion 35 is connected to the other end of each of the first leader wires 34. The first terminal portion 35 is located at the edge portion of the wiring body 10. The first terminal portion 35 is electrically connected to an external circuit. The first electrode pattern 31 is arranged in a detection region that can be visually recognized from the outside. On the other hand, the first leader wire 34 and the first terminal portion 35 are arranged in a frame area that is not visible from the outside.

Further, the number of the first electrode patterns 31 is not particularly limited and can be set arbitrarily. Further, the number of the first leader wire 34 and the first terminal portion 35 is not particularly limited, and is set according to the number of the first electrode patterns 31.

As shown in FIG. 2, the plurality of first dummy patterns 37 are arranged in the region where the first electrode pattern 31 is not formed in the above detection region, and the first electrode pattern 31 is electrically different from the first electrode pattern 31. Insulated in. In the present embodiment, the first dummy pattern 37 is arranged between the plurality of first electrode patterns 31, and the first dummy pattern 37 is the second via the second insulating portion 40. It faces the electrode pattern 51 (described later) of.

Further, the first dummy pattern 37, the first electrode pattern 31, the first leader wire 34, and the first terminal portion 35 are provided on substantially the same plane. As shown in FIG. 3, the first dummy pattern 37 and the first electrode pattern 31 form a uniform lattice pattern in which the same large lattice is repeated on the same plane.

As shown in FIG. 3, each first dummy pattern 37 has linear first dummy thin lines 371a and 371b that intersect each other. In the present embodiment, the first dummy thin wires 371a and 371b are collectively referred to as "first dummy thin wires". Further, the first dummy wire 371 in the present embodiment corresponds to an example of the "first dummy wire" in the present invention.

The first dummy wire 371a extends in the first direction D ₁ , while the first dummy wire 371b extends in the second direction D ₂ . Further, the first dummy thin wire 371a extends substantially on the same straight line as the above-mentioned first conductor wire 321a, and the first dummy thin wire 371b is substantially the same as the above-mentioned first conductor wire 321b. It extends on the same straight line.

FIG. 5 is a cross-sectional view taken along the line VV of FIG. As shown in FIG. 5, the first dummy thin wire 371 has substantially the same cross-sectional shape as the cross-sectional shape of the first conductor wire 321 described above, except for the line width _WD1 . The line width W _D1 of the first dummy thin wire 371 is narrower than the line width W _{1 of} the first conductor wire 321 as described in the above equation (18). Specifically, the line width W ₁ of the first conductor wires 321a and 321b is preferably 0.5 μm or more and 4 μm or less (0.5 μm ≦ _WD1 ≦ 4 μm).

As shown in FIG. 3, a disconnection portion 372 is formed between the first dummy thin wires 371a and 371b and the first conductor wires 321a and 321b. The first dummy thin wires 371a and 371a and the first conductor wires 321a and 321b are electrically insulated by the disconnection portion 372. In the present embodiment, the disconnection portion 372 is formed only at the boundary between the first dummy thin wire 371 and the first conductor wire 321, but is not particularly limited thereto. The disconnection portion 372 may be formed in a portion other than the boundary portion in addition to the boundary portion between the first dummy thin wire 371 and the first conductor wire 321. For example, a disconnection portion 372 may be provided at the intersection of the first dummy thin wires 371a and 371b. By further providing a disconnection portion 372 at the intersection of the first dummy thin wires 371a and 371b, the first dummy pattern 37 and the first electrode pattern 31 can be more reliably insulated.

As shown in FIG. 2, the second insulating portion 40 has a rectangular outer shape and is made of a transparent resin material. As the resin material having this transparency, for example, the same material as the resin material constituting the first insulating portion 20 can be used.

The second insulating portion 40 is provided on the first insulating portion 20 so as to cover the first conductor portion 30. A notch 41 is formed in the second insulating portion 40. The first terminal portion 35 is exposed from the notch portion 41.

The second conductor portion 50 is provided on the second insulating portion 40 and is held by the second insulating portion 40. The second conductor portion 50 is formed by printing and curing a conductive paste. As a specific example of the conductive paste, the same one as the conductive paste constituting the first conductor portion 30 can be exemplified.

As shown in FIGS. 1 and 2, the second conductor portion 50 includes a plurality of second electrode patterns 51, a plurality of second leader wires 54, a plurality of second terminal portions 55, and a plurality of second conductor portions 55. A second dummy pattern 57 and the like are included. The second electrode pattern 51 in the present embodiment corresponds to an example of the "second electrode pattern" in the present invention, and the second dummy pattern 57 in the present embodiment is an example of the "second dummy pattern" in the present invention. Corresponds to.

Each of the second electrode patterns 51 extends in the Y direction in the drawing. The plurality of second electrode patterns 51 are arranged in the X direction in the drawing. Each second electrode pattern 51 includes a plurality of second main body portions 52 and a plurality of second connecting portions 53. The second main body 52 in the present embodiment corresponds to an example of the "second main body" in the present invention, and the second connecting portion 53 in the present embodiment is an example of the "second connecting portion" in the present invention. Corresponds to.

As shown in FIG. 2, the second main body 52 located at both ends of the second electrode pattern 51 has a substantially triangular shape, and the other second main body 52 has a substantially rhombic shape. doing. The plurality of second main body portions 52 of the second electrode pattern 51 are arranged in the extending direction (Y direction in the drawing) of the second electrode pattern 51. The second main body portions 52 adjacent to each other are electrically connected to each other via the second connecting portion 53. The electrode width of the second electrode pattern 51 in the second connecting portion 53 is narrower than the electrode width of the second electrode pattern 51 in the second main body portion 52.

FIG. 6 is an enlarged plan view showing the second conductor portion 50. As shown in FIG. 6, the second electrode pattern 51 has a plurality of linear second conductor wires 521a and 521b. In the present embodiment, the second conductor wires 521a and 521b are collectively referred to as "second conductor wire 521". The number of the second conductor wires 521a and 521b constituting the second main body 52 is not particularly limited. The second conductor wire 521 in the present embodiment corresponds to an example of the "second conductor wire" in the present invention.

The second conductor line 521a extends in a first direction _{D 1,} while the second conductor line 521b is Mashimashi second extending direction _{D 2} of the. The plurality of second conductor wires 521a are arranged at equal intervals, and similarly, the plurality of second conductor wires 521b are also arranged at equal intervals. The second conductor wires 521a and 521b intersect with each other to form a plurality of lattices, and the second main body portion 52 and the second connecting portion 53 are formed from the plurality of second conductor wires 521a and 521b. It is in the form of a mesh composed of lattices. The number of the second conductor wires 521a and 521b constituting the second main body portion 52 and the second connecting portion 53 is not particularly limited.

The second conductor wire 521 is provided on the convex portion of the second insulating portion 40 (see FIG. 4). The second conductor wire 521 has the same cross-sectional shape as the first conductor wire 321 described above, and when the cross section cut in the width direction of the second conductor wire 521 is viewed, the second insulation is provided. It has a tapered shape that gradually narrows as it moves away from the portion 40. Also in the second conductor wire 521, the contact surface in contact with the convex portion of the second insulating portion is relatively rough with respect to the contact surface in contact with the third insulating portion 60.

The line width W ₂ of the second conductor wires 521a and 521b is constant along the extending direction (first direction D ₁ or second direction D ₂ ). In the present embodiment, the line width W ₂ of the second conductor wire 521 is equal to the line width W _{1 of} the first conductor wire 321 as shown in the following equation (20). Therefore, the line width W ₂ of the second conductor wire 521 is larger than the line width W _D1 of the first dummy thin wire as shown in the following equation (21). By setting the first conductor wire 321 and the second conductor wire 521 to have the same line width as in the following equation (20), the visibility can be further improved.
W ₁ = W ₂ ... (20)
W ₂ > W _{D 1} ... (21)

Further, the line width W ₂ of the second conductor wire 521 is preferably twice or less the line width W _{D1 of} the first dummy thin wire 371 as shown in the following equation (22). As described above, the line width W ₁ of the second conductor wire 521 is not more than twice the line width W _{D1 of} the first dummy thin wire 371, so that the second conductor wire 521 and the first dummy Deterioration of visibility due to the difference in line width of the thin wire 371 can be suppressed.
W ₂ ≤ 2.0 × W _{D 1} … (22)

Further, the line width W ₂ of the second conductor wire 521 is preferably 1.0 μm or more and 4.5 μm or less (1.0 μm ≦ W ₂ ≦ 4.5 μm).

Returning to FIGS. 1 and 2, one end of the second leader line 54 is connected to one end in the longitudinal direction of each of the second electrode patterns 51. A second terminal portion 55 is connected to the other end of each of the second leader wires 54, and each of the second terminal portions 55 is located at an edge portion of the wiring body 10. The second terminal portion 55 is electrically connected to an external circuit.

As shown in FIG. 2, the second dummy pattern 57 is arranged in a region where the second electrode pattern 51 is not formed in the second insulating portion 40, and is electrically different from the second electrode pattern 51. Insulated in. In the present embodiment, the second dummy pattern 57 is arranged between the plurality of second electrode patterns 51, and the second dummy pattern 57 is the first through the second insulating portion 40. It faces the electrode pattern 31. Further, the second dummy pattern 57, the second electrode pattern 51, the second leader wire 54, and the second terminal portion 55 are provided on substantially the same plane.

As shown in FIG. 6, the second dummy pattern 57 and the second electrode pattern 51 form a uniform lattice pattern in which the same large lattice is repeated on the same plane. Each of the second dummy patterns 57 has linear second dummy thin lines 571a and 571b that intersect each other. In the present embodiment, the second dummy thin wires 571a and 571b are collectively referred to as "second dummy thin wires". Further, the second dummy wire 571 in the present embodiment corresponds to an example of the "second dummy wire" in the present invention.

One of the second dummy thin line 571a extends in a first direction _{D 1,} the other of the second dummy thin line 571b extends in the second direction _{D 2.} Further, the second dummy thin wire 571a extends substantially on the same straight line as the above-mentioned second conductor wire 521a, and the second dummy thin wire 571b is substantially the same as the above-mentioned second conductor wire 521b. It extends on the same straight line.

The second dummy wire 571 has the same cross-sectional shape as the first dummy wire 371 described above (see FIG. 5). Therefore, have as follows (23), the line width _{W D2} of the second dummy thin line 571 the first same line width and the dummy thin wire 371. By making the second dummy thin wire 571 the same line width as the first dummy thin wire 371, the visibility can be further improved.
W _D1 = W _D2 ... (23)

Further, since the line width W _D2 of the second dummy thin wire 571 is the same as the line width W _{D1 of} the first dummy thin wire 371, the line widths W ₁ , 521 of the first and second conductor wires 321 and 521 are W ₁ , W. ₂ is larger than the line width W _{D2 of} the second dummy thin wire 571 as shown in the following equations (24) and (25).
W ₁ > W _{D 2} ... (24)
W ₂ > W _{D 2} ... (25)

Further, the line widths W ₁ and W ₂ of the first and second conductor wires 321 and 521 are twice the line width W _D2 of the second dummy thin wire 571 as shown in the following equations (26) and (27). The following is preferable. As described above, the line widths W ₁ and W _{2 of} the first and second conductor wires 321 and 521 are not more than twice the line width W _D2 of the second dummy thin wire 571, so that the line width is increased. It is possible to suppress the deterioration of visibility due to the difference.
W ₁ ≤ 2.0 x W _D2 ... (26)
W ₂ ≤ 2.0 x W _{D 2} ... (27)

The second dummy thin wires 571a and 571b may have a cross-sectional shape different from that of the first dummy thin wire 371, or may have a line width different from that of the first dummy thin wire 371.

A disconnection portion 572 is formed between the second dummy thin wires 571a and 571b and the second conductor wires 521a and 521b. The second dummy thin wires 571a and 571b and the second conductor wires 521a and 521b are electrically insulated from each other by the disconnection portion 572.

FIG. 7 is an enlarged plan view showing a state in which the first conductor portion 30 of FIG. 3 and the second conductor portion 50 of FIG. 6 are overlapped. As shown in FIG. 7, in a plan view, the first electrode pattern 31 and the second electrode pattern 51 intersect with each other, and the first connecting portion 33 of the first electrode pattern 31 and the second electrode pattern 31 The second connecting portion 53 of the electrode pattern 51 overlaps with the second connecting portion 53. On the other hand, in a plan view, the first main body 32 of the first electrode pattern 31 and the second main body 52 of the second electrode pattern 51 do not overlap and are adjacent to each other. Further, the first main body portion 32 overlaps with the second dummy pattern 57, and the second main body portion 52 overlaps with the first dummy pattern 37.

By overlapping the first electrode pattern 31, the first dummy pattern 37, the second electrode pattern 51, and the second dummy pattern 57 in this way, the wiring bodies 10 are apparently the same small size in the plan view. A grid pattern that repeats the grid is formed. In this grid pattern, the wiring body 10 includes a first region R ₁ , a second region R ₂ , a third region R _3, and a fourth region R ₄ .

In the first region R _1, the second body portion 52 of the first dummy pattern 37 and the second electrode pattern 51 are overlapped in a plan view. In the first region R _1, in a plan view, the first dummy thin line 371, to form a small lattice perpendicular to the second conductor line 521. The first region R ₁ of this embodiment is equivalent to an example of the "first region" in the present invention.

The second region R ₂ is adjacent to the first region R ₁ via the fourth region R ₄ (described later). In the second region R _2, the second dummy pattern 57 and the first body portion 32 of the first electrode patterns 31 are overlapped in a plan view. In the second region R _2, in a plan view, the second dummy thin lines 571, to form a small lattice orthogonal to the first conductor line 321. The second region R ₂ in the present embodiment corresponds to an example of the “second region” in the present invention.

The third region R ₃ is arranged so as to be sandwiched between two first regions R ₁ and sandwiched between two second regions R ₂ . In the third region R _3, the first connecting portion 33 of the first electrode pattern 31 and the second connecting portion 53 of the second electrode pattern 51 are overlapped in a plan view. In the third region R _3, in a plan view, the first conductor line 321, to form a small lattice perpendicular to the second conductor line 521. The third region R ₃ in the present embodiment corresponds to an example of the "third area" in the present invention.

The fourth region R ₄ is interposed between the first region R ₁ and the second region R ₂ . In the fourth region R _4, and overlaps with the first dummy patterns 37 and second dummy patterns 57. On the other hand, the fourth region R _4, the first electrode pattern 31 and the second electrode pattern 51 is not disposed. In the fourth region R _4, it forms a small grating and the first dummy thin line 371 and the second dummy thin lines 571 are orthogonal. Fourth region R ₄ in the present embodiment is equivalent to an example of the "fourth region" in the present invention.

Here, from the viewpoint of improving the visibility at the time of light transmission, a small difference between the first region _{R 1} ~ fourth region _{R 4} first to fourth in the mesh opening ratio _A 1 _{to A} 4 (%) Is preferable. The first and the first mesh opening ratio A ₁ in the region R ₁ in the present embodiment, are defined as (28) below. Further, it is possible to the second region _{R 2} ~ fourth region _{R 4} first to fourth in the mesh opening ratio _A 2 to A ₄ may be calculated in the same manner as the first mesh opening ratio _{A 1.}
A ₁ (%) = (S ₁ − (S ₂ + S ₃ )) ÷ S ₁ × 100… (28)
However, in the above equation (28), S ₁ is the area of the first region R ₁ , and S ₂ is the area of the first electrode pattern 31 and the second electrode pattern in the first region R ₁ . 51 the sum of the area of a (electrode area), S ₃ is the total value of the area of the first dummy pattern 37 in the first region R ₁ and the area of the second dummy pattern 57 (dummy area) Is.

When the first mesh aperture ratio A ₁ is equal to or less than the _second mesh aperture ratio A _2, (A ₁ ≤ A ₂ ), it is preferable to satisfy the following equation (29). On the other hand, when the first mesh aperture ratio A ₁ is the second mesh aperture ratio A ₂ or more (A ₁ ≧ A ₂ ), it is preferable to satisfy the following equation (30). If the difference between the first and second regions _R 1, the _{R 2} mesh opening ratio adjacent satisfying the following (29) or (30), the outer shape of the first and second electrode patterns 31 and 51 is visually recognized There is almost no problem.
99.38 ≤ (A ₁ / A ₂ ) x 100 ≤ 100 ... (29)
99.38 ≤ (A ₂ / A ₁ ) x 100 ≤ 100 ... (30)

In the present embodiment, in the third region R _3, the first connecting portion 33 overlaps the second connection portion 53, all of the small grid to the first and second dummy thin lines 371,571 It is formed of relatively wide first and second conductor wires 321 and 521. Therefore, the third mesh aperture ratio A ₃ is the smallest value among the _first to fourth mesh aperture ratios A _{1 to} A ₄ . In this case, the first and second mesh opening ratio _A 1, _{A 2} and the third mesh opening ratio _{A 3,} below (31), it is preferable to satisfy the equation (32). Thus, in the first to third regions _R 1 to R _3, little that the outer shape of the first and second electrode patterns 31 and 51 is visible.
99.38 ≤ (A ₃ / A ₁ ) x 100 ≤ 100 ... (31)
99.38 ≦ (A ₃ / A ₂ ) × 100 ≦ 100… (32)

Furthermore, in the present embodiment, in the fourth section R _4, all the small grating is formed by the first and second dummy thin lines 371,571 narrow. Therefore, the fourth mesh aperture ratio A ₄ is the largest value among the _first to fourth mesh aperture ratios A _{1 to} A ₄ . In this case, the third mesh opening ratio A ₃ and the fourth mesh opening ratio A _4, it is preferable to satisfy the following equation (33). In this way, when the difference between the maximum value (third mesh aperture ratio A ₃ ) and the minimum value (fourth mesh aperture ratio A ₄ ) of the mesh aperture ratio in the detection region is small, the first and second mesh aperture ratios are used. The outer shape of the electrode patterns 31 and 51 is hardly visible.
99.38 ≤ (A ₃ / A ₄ ) x 100 ≤ 100 ... (33)

From the viewpoint of improving the visibility at the time of light reflection, the first and diffuse reflectance D ₁ in the first region R _1, the smaller second difference diffuse reflectance D ₂ of the second region R ₂ Is preferable. In particular, when the first diffuse reflectance D ₁ is equal to or less than the _second diffuse reflectance D ₂ (D ₁ ≤ D ₂ ), it is preferable to satisfy the following equation (34), and the first diffuse reflectance D _{When 1} is the second diffuse reflectance D ₂ or more (D ₁ ≧ D ₂ ), it is preferable to satisfy the following equation (35).
73 ≦ (D ₁ / D ₂ ) × 100 ≦ 100… (34)
73 ≦ (D ₂ / D ₁ ) × 100 ≦ 100… (35)

Further, although not particularly limited, it is preferable that the third diffuse reflectance D ₃ of the third region R ₃ satisfies the relationship of the following equations (36) and (37).
73 ≦ (D ₁ / D ₃ ) × 100 ≦ 100… (36)
73 ≦ (D ₂ / D ₃ ) × 100 ≦ 100… (37)

Further, although not particularly limited, the relative relationship of the third region R 3 diffuse reflectance D ₃ and the fourth region R fourth diffuse reflectance D _{4 4 3,} following equation (38) It is preferable to satisfy.
73 ≦ (D ₄ / D ₃ ) × 100 ≦ 100… (38)

Here, the diffuse reflectance can be calculated as follows. First, a light-shielding film (for example, Shibuya Optical's light-shielding / absorbing sheet Super Black IR) having an opening so that only the measurement target area of the wiring body 10 is exposed is prepared, and the light-shielding film is installed on the wiring body 10. To do. Then, meter (e.g., manufactured by JASCO Corporation ultraviolet-visible-near-infrared spectrophotometer V-670) by, measuring the diffuse reflectance D _a. Next, by subtracting the diffuse reflectance D _b of only the surface of the light-shielding film from the diffuse reflectance D _a , the diffuse reflectance D _{1 to} D ₄ of a desired region of the wiring body 10 can be obtained. Here, when the opening shape of the light-shielding film is different for each, it is desirable to use a value (standardized) obtained by dividing the diffuse reflectance by the opening area.

Returning to FIG. 2, the third insulating portion 60 has a rectangular outer shape and is made of a transparent resin material. As the resin material having this transparency, for example, the same material as the resin material constituting the first insulating portion 20 can be used.

The third insulating portion 60 is provided on the second insulating portion 40 so as to cover the second conductor portion 50. A notch 61 is formed in the third insulating portion 60. The second terminal portion 55 is exposed from the notch portion 61. Further, the cutout portion 61 overlaps with the cutout portion 41 of the second insulating portion 40 described above, and the first and second terminal portions 35 and 55 are exposed from the cutout portion 61.

The cover panel 70 is attached to the wiring body 10 via an adhesive layer (not shown). As shown in FIG. 2, the cover panel 70 includes a transparent portion 71 capable of transmitting visible light and a shielding portion 72 that shields visible light. The transparent portion 71 is formed in a rectangular shape, and the shielding portion 72 is formed in a rectangular frame shape around the transparent portion 71.

The transparent material constituting the cover panel 70 is, for example, a glass material or a resin material. Specific examples of the glass material include soda lime glass and borosilicate glass. Further, as the resin material, specifically, polymethyl methacrylate (PMMA), polycarbonate (PC) and the like can be exemplified. Further, the shielding portion 72 is formed by applying, for example, black ink to the outer peripheral portion of the cover panel 70. An adhesive layer (not shown) is provided on the back side of the cover panel 70 (the side in contact with the third insulating portion 60).

As described above, in the present embodiment, the first electrode pattern 31 and the second dummy pattern 57 overlap to form a small grid, and the second electrode pattern 51 and the first dummy pattern 37 form a small grid. The small lattices are formed by overlapping. As a result, a small grid is uniformly formed over the entire detection region. Therefore, the first electrode pattern 31 and the second electrode pattern 51 are difficult to be visually recognized by the operator, and the visibility can be improved.

Further, in the present embodiment, the line widths W ₁ and W ₂ of the first and _second conductor wires 321 and 521 constituting the first and second electrode patterns 31 and 51 are the first and second dummy patterns. The line widths of the first and second dummy thin wires 371 and 571 constituting 37 and 57 are larger than those of W _D1 and W _D2 . Therefore, it is possible to suppress an increase in the resistance of the first and second electrode patterns 31 and 51, and it is possible to improve the detection sensitivity of the touch sensor 1.

<< Second Embodiment >>
8 is an enlarged plan view showing the first conductor portion according to the second embodiment of the present invention, FIG. 9 is an enlarged plan view showing the second conductor portion according to the second embodiment, and FIG. 10 is an enlarged plan view showing the second conductor portion. It is an enlarged plan view which shows the state in which the 1st conductor part of FIG. 9 and the 2nd conductor part of FIG. 9 are overlapped.

The present embodiment is different from the first embodiment in that the first conductor portion includes the second dummy pattern and the second conductor portion does not include the second dummy pattern, but the other configurations are different. It is the same as the first embodiment. Hereinafter, only the differences between the first conductor portion 30B and the second conductor portion 50B in the second embodiment from those in the first embodiment will be described, and the parts having the same configuration as those in the first embodiment have the same reference numerals. Is added to omit the description.

As shown in FIG. 8, in the present embodiment, the second dummy pattern 57B is formed inside the first main body 32 of the first electrode pattern 31 and around the first main body 32. ing. That is, the first electrode pattern 31, the first dummy pattern 37, and the second dummy pattern 57 are formed on the same plane.

The second dummy pattern 57B has a plurality of cross portions 573 that are independent of each other, and the inside of the large lattice in which each cross portion 573 constitutes the first main body portion 32 and the first main body portion 32. And inside the large grid formed by the first dummy pattern 37. Further, the cross portion 573 is not provided at a position where it overlaps with the second electrode pattern 51 in a plan view.

The cross portion 573 is formed by making the second dummy thin wires 571a and 571b orthogonal to each other, and the second dummy thin wires 571a and 571b are separated from the first conductor wire 321 so that the first electrode pattern is formed. It is insulated from 31. The second dummy thin wire 571 extends so as to bisect between the first conductor wires 321 and each other.

On the other hand, as shown in FIG. 9, the second conductor portion 50B does not have the second dummy pattern 57B, but has only a plurality of second electrode patterns 51.

As shown in FIG. 10, also in the present embodiment, the same small grid is formed by the first and second electrode patterns 31, 51 and the first and second dummy patterns 37, 57B, as in the first embodiment. A repeating grid pattern is formed.

Also in this second embodiment, as in the case of the first embodiment described above, it is possible to suppress an increase in resistance of the first and second electrode patterns 31 and 51 while improving visibility.

It should be noted that the embodiments described above are described for facilitating the understanding of the present invention, and are not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

For example, in the above-described embodiment, the first electrode pattern 31 has a diamond-shaped pattern, but the pattern shape of the first electrode pattern 31 is not particularly limited to this. For example, the first electrode pattern may have a band-shaped pattern.

Further, as shown in FIG. 4, the first and second conductor wires 321 and 521 have a trapezoidal cross-sectional shape that is convex upward, but the present invention is not particularly limited thereto. For example, the upper surfaces of the first and second conductor wires 321 and 521 may have a curved surface shape that is convex upward. In this case, the upper surfaces of the first and second conductor wires 321 and 521 are connected to two planes forming a tapered shape. Similarly, the upper surfaces of the first and second dummy thin wires 371 and 571 may also have a curved surface shape that is convex upward.

Further, in order to improve visibility, the first and second conductor wires 321 and 521 have a black layer having a reflectance lower than that of the conductive layer in addition to the conductive layer containing the conductive particles described above. You may be doing it. This black layer is formed by printing a carbon paste and contains a carbon-based material. The black layer is arranged at a position closer to the side where the outer conductor contacts than the conductive layer. That is, the conductive layer is located on the display device side, and the black layer is located on the operator side (the surface side where the outer conductor contacts).

In addition, black metal oxide particles may be used instead of the carbon-based material. In this case, the black layer can be formed by oxidizing the metal particles located on the operator side in the conductive layer.

Alternatively, this black layer does not have to have conductivity. In this case, for example, a black layer can be formed by printing black ink, and the black layer contains a black pigment.

Further, in the above-described embodiment, the wiring body has been described as being used for the touch sensor, but the wiring body is not particularly limited thereto. For example, the wiring body may be used as a heater by energizing the wiring body and generating heat by resistance heating or the like. Further, the wiring body may be used as an electromagnetic shielding shield by grounding a part of the conductor portion of the wiring body. Further, the wiring body may be used as an antenna. In this case, the mounting target on which the wiring body is mounted corresponds to an example of the support of the present invention. Moreover, the wiring body can be used for a switch.

1 ... Touch sensor 2 ... Wiring plate 10 ... Wiring body 20 ... First insulating part 21 ... Flat part 22 ... Convex part 30, 30B ... First conductor part
31 ... First electrode pattern
32 ... First main body
3211, 321a, 321b ... First conductor wire
33 ... 1st connecting portion 34 ... 1st leader wire 35 ... 1st terminal portion 37 ... 1st dummy pattern
371, 371a, 371b ... First dummy thin wire
372 ... Disconnection part 40 ... Second insulating part 41 ... Notch part 50, 50B ... Second conductor part 51 ... Second electrode pattern
52 ... Second main body
521, 521a, 521b ... Second conductor wire
53 ... 2nd connecting portion 54 ... 2nd leader wire 55 ... 2nd terminal portion 57, 57B ... 2nd dummy pattern
571, 571a, 571b ... Second dummy thin wire
572 ... Disconnection part
573 ... Cross 60 ... Third insulating part 61 ... Notch 70 ... Cover panel 71 ... Transparent part 72 ... Shielding part 80 ... Support F ... External conductor

Claims (9)

Insulation and
A mesh-shaped first electrode pattern formed on one main surface of the insulating portion and formed by intersecting a plurality of first conductor wires,
A mesh-shaped second electrode pattern formed on the other main surface of the insulating portion and formed by intersecting a plurality of second conductor wires,
A first dummy pattern formed on one main surface of the insulating portion and electrically insulated from the first electrode pattern,
A second dummy pattern formed on one main surface or the other main surface of the insulating portion and insulated from the first and second electrode patterns is provided.
The first dummy pattern includes a first dummy wire.
The second dummy pattern includes a second dummy wire.
The first dummy pattern overlaps with the second electrode pattern in a plan view.
The second dummy pattern overlaps with the first electrode pattern in a plan view.
A wiring body that satisfies the following equations (1) to (4).
W ₁ > W _{D 1} ... (1)
W ₂ > W _{D 1} ... (2)
W ₁ > W _D2 ... (3)
W ₂ > W _{D 2} ... (4)
However, in the above equations (1) to (4), W ₁ is the line width of the first conductor wire, W ₂ is the line width of the second conductor wire, and W _{D 1} is the line width of the second conductor wire. a line width of the first dummy thin line, W _D2 is a line width of the second dummy thin line. The wiring body according to claim 1.
A wiring body that satisfies the following equations (5) to (8).
W ₁ ≤ 2.0 x WD ₁ ... (5)
W ₂ ≤ 2.0 × W _{D 1} … (6)
W ₁ ≤ 2.0 × W _D2 … (7)
W ₂ ≤ 2.0 × W _{D 2} … (8) The wiring body according to claim 1 or 2.
The first electrode pattern is
The first mesh-shaped body and
Includes a mesh-shaped first connecting portion that connects the first main body portions to each other.
The second electrode pattern is
The mesh-shaped second body and
A mesh-shaped second connecting portion for connecting the second main body portions is included.
The first main body is adjacent to the second main body, and the first main body is adjacent to the second main body.
The wiring body is
The first dummy pattern overlaps with the second main body in a plan view.
The second dummy pattern has a second region that overlaps with the first main body portion in a plan view.
The first region is adjacent to the second region and
A wiring body that satisfies the following formula (9) or (10).
99.38 ≦ (A ₁ / A ₂ ) × 100 ≦ 100… (9)
99.38 ≦ (A ₂ / A ₁ ) × 100 ≦ 100… (10)
However, in the above equations (9) and (10), A ₁ is the mesh opening ratio (%) in the first region, and A ₂ is the mesh opening ratio (%) in the second region. The wiring body according to claim 3.
The wiring body has a third region in which the first connecting portion and the second connecting portion overlap in a plan view.
A wiring body that satisfies the following equations (11) and (12).
99.38 ≤ (A ₃ / A ₁ ) x 100 ≤ 100 ... (11)
99.38 ≦ (A ₃ / A ₂ ) × 100 ≦ 100… (12)
However, in the above (11) and (12), _{A 3} is a mesh opening ratio in the third region (%). The wiring body according to claim 3 or 4.
The wiring body has a fourth region interposed between the first region and the second region in a plan view.
A wiring body that satisfies the following equation (13).
99.38 ≤ (A ₃ / A ₄ ) x 100 ≤ 100 ... (13)
However, in the above equation (13), A ₃ is the mesh aperture ratio (%) in the third region, and A ₄ is the mesh aperture ratio (%) in the fourth region. The wiring body according to any one of claims 1 to 5.
A wiring body that satisfies the following equations (14) and (15).
W ₁ = W ₂ ... (14)
W _D1 = W _D2 ... (15) The wiring body according to any one of claims 3 to 6.
A wiring body that satisfies the following formula (16) or (17).
73 ≦ (D ₁ / D ₂ ) × 100 ≦ 100… (16)
73 ≦ (D ₂ / D ₁ ) × 100 ≦ 100… (17)
However, D ₁ is the diffuse reflectance (%) in the first region, and D ₂ is the diffuse reflectance (%) in the second region. The wiring body according to any one of claims 1 to 7.
A wiring board provided with a support that supports the wiring body. The touch sensor provided with the wiring board according to claim 8.

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