JP2017211774A - Conductive film, touch panel, and display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conductive film that can suppress a local increase in line width of an electrode wire, a touch panel, and a display.SOLUTION: A sensing electrode wire 33SR comprises: a plurality of inclined parts 33E that extend from the base end to the tip along the sensing electrode wire 33SR in a direction inclined with respect to a first electrode direction D1; and a plurality of linear relay parts 33Q that connect the tip of one of the two inclined parts 33E adjacent to each other in the first electrode direction D1 to the base end of the other. The inclined parts 33E and the relay parts 33Q are arranged alternately along the sensing electrode wire 33SR, and the angle formed by the inclined part 33E and the relay part 33Q adjacent to each other is an obtuse angle.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a conductive film including a plurality of electrode wires, a touch panel including the conductive film, and a display device including the touch panel.

  A display device using a touch panel as an input device includes a display panel that displays an image and the touch panel overlaid on the display panel. As a method for detecting the contact position of a finger or the like on a touch panel, a capacitance method that detects a finger touching the operation surface of the touch panel as a change in capacitance is widely used. In the capacitive touch panel, the conductive film included in the touch panel includes a plurality of first electrodes extending along a first direction, a plurality of second electrodes extending along a second direction orthogonal to the first direction, And a transparent dielectric layer sandwiched between the first electrode and the second electrode. Then, a change in electrostatic capacitance between one first electrode and each of the plurality of second electrodes is detected for each first electrode, and a contact position such as a finger on the operation surface is detected.

  In an example of such a conductive film, each of the plurality of first electrodes includes a plurality of first electrode lines extending along the first direction, and each of the plurality of second electrodes extends along the second direction. It comprises a plurality of second electrode lines. As the electrode wire, a thin wire made of a metal such as silver or copper is used. By using a metal as the material of the electrode wire, it is possible to obtain quick response and high resolution when detecting the contact position, and it is possible to increase the size of the touch panel and reduce manufacturing costs.

  By the way, in the configuration in which the electrode lines are formed from a metal that absorbs or reflects visible light, the plurality of first electrode lines and the plurality of second electrode lines are the electrode lines as viewed from the operation surface of the touch panel. Form a lattice-like pattern orthogonal to each other. On the other hand, even in a display panel on which a touch panel is stacked, a black matrix that partitions a plurality of pixels along a first direction and a second direction forms a lattice pattern.

  At this time, the interval between the first electrode lines adjacent to each other is generally different from the interval between the pixels adjacent to each other in the second direction, and the interval between the second electrode lines adjacent to each other is also set. This is different from the interval in the first direction between adjacent pixels. Then, when viewed from the operation surface of the touch panel, the lattice-like periodic structure formed by the first electrode line and the second electrode line overlaps with the lattice-like periodic structure that partitions the pixels, thereby providing two periodic structures. Deviation of the case may induce moire. When the moiré is visually recognized, the quality of the image visually recognized by the display device is deteriorated.

  As one of the measures for suppressing such moire, it has been proposed to reduce the periodicity of the periodic structure of the electrode wire. If the periodicity of a pattern composed of a plurality of electrode lines is low, this electrode line pattern is difficult to be recognized as a periodic structure. Therefore, the deviation between the pattern defining the pixel and the electrode line pattern is a deviation between the two periodic structures. It becomes difficult to be recognized as. Therefore, it is possible to suppress the moire from being visually recognized.

  For example, in the touch panel described in Patent Document 1, each of the first electrode line and the second electrode line has a polygonal line shape in which peaks and valleys are alternately repeated, and is configured from these electrode lines. The pattern to be formed has a polygonal repeating structure different from the rectangle. Therefore, the periodicity of such an electrode line pattern is lower than that of a grid-like electrode line pattern in which rectangles are arranged.

International Publication No. 2014/115831

By the way, in the corner | angular part in the polygonal line shape where a peak part and a trough part are repeated alternately as described in patent document 1, the extending direction of an electrode line changes a lot in a unit area. Therefore, when manufacturing the electrode wire, it is difficult to accurately form the corner portion according to the design shape. In particular, when the electrode line is formed by etching a metal thin film, the line width of the electrode line at the corner tends to be thicker than the design dimension. Such a local increase in line width may lead to an increase in the deviation between the design value and the actual measurement value in the electrical characteristics of the touch panel and a reduction in the quality of the image visually recognized on the display device.
An object of the present invention is to provide a conductive film, a touch panel, and a display device that can suppress a local increase in line width in an electrode line.

  The conductive film that solves the above problems includes a transparent dielectric layer having a first surface and a second surface opposite to the first surface, and the first surface of the transparent dielectric layer. A plurality of electrode lines extending along the first direction and arranged along the first intersecting direction intersecting the first direction, and the second surface of the transparent dielectric layer, and the first direction A plurality of electrode lines extending along a second intersecting direction and arranged along a second intersecting direction intersecting the second direction, and the plurality of electrode lines positioned on the first surface are bent A first electrode line having a linear shape, wherein the first electrode line has a linear shape extending from the proximal end toward the distal end along the first electrode line in a direction inclined with respect to the first direction; For a plurality of first inclined portions and two first inclined portions adjacent to each other in the first direction A plurality of first relay portions having a straight line connecting the distal end and the other base end, and the first inclined portion and the first relay portion are alternately arranged along the first electrode line. An angle formed between the first inclined portion and the first relay portion that are arranged and adjacent to each other is an obtuse angle.

  According to the above configuration, the crests and the troughs are alternately repeated in the bent part formed of the first relay part and the first inclined part connected to the first relay part in the first electrode line having the bent line shape. The change in the unit area in the extending direction of the electrode line is more gradual than the bent part of the broken line-shaped electrode line in which the first inclined part is extended. Therefore, the formation of the first electrode line is easy, and the line width of the electrode line can be prevented from locally expanding in the vicinity of the bent portion in the manufacturing process. As a result, in a touch panel including a conductive film having such an electrode line pattern, it is possible to suppress a deviation between a design value and an actual measurement value in electrical characteristics, and an image visually recognized on a display device including the touch panel. It is also possible to suppress the deterioration of quality.

The said structure WHEREIN: The said 1st relay part may be extended along the said 1st direction.
According to the above configuration, compared to the configuration in which the first relay portion is largely inclined with respect to the first direction, the change in the unit area in the direction in which the electrode line extends in the bent portion is likely to be moderate, and the first relay portion is bent in the manufacturing process. It is easy to obtain an effect of suppressing the local expansion of the electrode line width in the vicinity of the portion.

  In the above configuration, the intersection of the extended lines of the two first inclined portions connected to both ends of the first relay portion is a virtual intersection, and between the two virtual intersections adjacent to each other along the first electrode line The maximum length along the first direction in the above may be the distance between the intersections, and the length of the first relay unit may be 0.2 times or less the distance between the intersections.

  According to the above configuration, the electrode line is actually formed with a polygonal line shape passing through the first inclined portion and the virtual intersection as a design shape, and the line width in the vicinity of the bent portion is locally thick. Compared with the pattern formed from the above, it is possible to suppress the moiré from being visually recognized when superimposed on the pixel pattern.

In the above configuration, the intersection of the extension lines of each of the two first inclined portions connected to both ends of the first relay portion is a virtual intersection, and on one side of the first intersection direction with respect to the first electrode line The plurality of virtual intersections located and the plurality of virtual intersections located on the other side of the first intersecting direction with respect to the first electrode line are located on separate straight lines extending in the first direction, The length along the first intersecting direction between the straight lines is a bending width, and the plurality of electrode lines positioned on the first surface are electrode lines having a predetermined interval along the first intersecting direction. A plurality of the first electrode lines arranged at intervals may be included, and a ratio of the bending width to the electrode line interval may be 0.7 or more and 1.3 or less.
According to the above configuration, it is easier to suppress the moire from being visually recognized when the electrode line pattern and the pixel pattern are superimposed.

  In the above configuration, the intersection of the extension lines of each of the two first inclined portions connected to both ends of the first relay portion is a virtual intersection, and on one side of the first intersection direction with respect to the first electrode line Each of the plurality of virtual intersections that are located is a displacement virtual intersection, and the position of the displacement virtual intersection in the first intersection direction is not relative to the order in which the displacement virtual intersections are arranged on one side of the first intersection direction. The first electrode line may be configured to change regularly.

  According to the above configuration, since the electrode line pattern includes a bent line that bends irregularly, the periodicity of the electrode line pattern is lower than that of an electrode line pattern formed of a regular bent line. As a result, since the shift between the pixel pattern and the electrode line pattern is not easily recognized as a shift between the two periodic structures, it is further suppressed that the moire is visually recognized when the pixel pattern and the electrode line pattern are overlapped. It is done.

  In the above configuration, a reference interval having a plurality of first virtual bent portions and a plurality of second virtual bent portions and having a polygonal line shape extending along the first direction and having a predetermined interval in the first intersecting direction. Each of the plurality of virtual electrode lines arranged with a gap is a reference electrode line, and the first virtual bent portion and the second virtual bent portion are periodically arranged one by one along the reference electrode line. The plurality of first virtual bent portions and the plurality of second virtual bent portions are arranged on separate straight lines extending in the first direction, the first virtual bent portions and the second virtual bent portions being alternately arranged. At least one of the virtual bent portions is a reference bent portion, a distance between two reference bent portions adjacent to each other in the first direction in the reference electrode line is a reference period, and the reference bent portion is the center. Having a length not more than 0.5 times the reference period, A rhombic virtual region having a diagonal line extending in one direction and a diagonal line having a length equal to or shorter than the reference interval and extending in the first intersecting direction is a displacement region, and each of the plurality of displacement virtual intersections is The first electrode line may be configured so as to be located in each of the different displacement regions.

  According to the said structure, it can suppress that the pattern of the electrode line located in a 1st surface becomes too irregular, for example, it can suppress that the electrode line which mutually adjoins crosses or contacts.

  In the above-described configuration, the plurality of electrode lines positioned on the second surface include a second electrode line having a bent line shape, and the second electrode line extends in a direction inclined with respect to the second direction. A plurality of second inclined portions having a linear shape extending from the base end toward the tip end along the two-electrode line, and one tip end and the other with respect to the two second inclined portions adjacent to each other in the second direction A plurality of second relay parts having a straight line connecting the base ends of the first and second relay parts, and the second inclined parts and the second relay parts are alternately arranged along the second electrode line and adjacent to each other. The angle formed between the second inclined part and the second relay part to be fitted is an obtuse angle.

According to the above configuration, in the second electrode line, similarly to the first electrode line, in the bent portion formed of the second relay portion and the second inclined portion connected to the second relay portion, The change in the unit area in the direction in which the electrode line extends is gradual as compared with the bent portion of the broken line-shaped electrode line in which the second inclined portion is extended alternately. Therefore, it is easy to form the second electrode line, and also in the second electrode line, it is possible to suppress the line width of the electrode line from locally expanding in the vicinity of the bent portion in the manufacturing process. In the touch panel provided with the conductive film having such an electrode line pattern, it is possible to suppress the local expansion of the line width of the electrode line in both the first electrode line and the second electrode line. Further, it is possible to further suppress the occurrence of a deviation between the design value and the actual measurement value and the deterioration of the quality of the image visually recognized on the display device including the touch panel.
In the above configuration, the plurality of electrode lines positioned on the first surface and the plurality of electrode lines positioned on the second surface may be disposed on different base materials.
According to the said structure, compared with the structure by which an electrode wire is formed in both surfaces of one base material, formation of an electrode wire is easy.

In the above configuration, the first direction and the second direction may be orthogonal to each other.
According to the said structure, the electrode line pattern on which the electrode line located in the 1st surface and the electrode line located in the 2nd surface were piled up is obtained easily. Further, when manufacturing the conductive film, it is easy to align the electrode lines located on the first surface and the electrode lines located on the second surface.

  A touch panel that solves the above-described problems is a static touch between the conductive film, a cover layer that covers the conductive film, an electrode wire disposed on the first surface, and an electrode wire disposed on the second surface. And a peripheral circuit for measuring the capacitance.

  According to the above configuration, since the first electrode line included in the touch panel is prevented from locally expanding the line width of the electrode line, a deviation occurs between the design value and the actual measurement value in the electrical characteristics. In addition, it is possible to suppress deterioration in the quality of an image visually recognized on a display device including a touch panel.

A display device that solves the above problems includes a display panel that includes a plurality of pixels arranged in a grid and displays information, a touch panel that transmits the information displayed on the display panel, and controls driving of the touch panel. And the control panel is the touch panel.
According to the said structure, the display apparatus provided with the touchscreen which has an electrode line by which the line | wire width was suppressed from expanding locally is realizable.

  ADVANTAGE OF THE INVENTION According to this invention, the expansion of the local line | wire width which arises in the manufacture process of an electrode wire can be suppressed.

Sectional drawing which shows the cross-section in 1st Embodiment of a display apparatus. The top view which shows the planar structure of the electroconductive film in 1st Embodiment. The top view which shows the pixel arrangement | sequence of the display panel in 1st Embodiment. The schematic diagram for demonstrating the electrical structure of the touchscreen in 1st Embodiment. The figure which shows the structure of the sensing electrode wire in 1st Embodiment. The figure which shows the structure of the drive electrode line in 1st Embodiment. It is a top view which shows the one part planar structure of the electroconductive film in 1st Embodiment, Comprising: The figure which shows the structure of the electrode line pattern comprised from a sensing electrode line and a drive electrode line. The figure which shows the structure of the sensing reference electrode line in 1st Embodiment. The figure which shows an example of the FFT analysis result of the pattern comprised from the some sensing reference electrode line in 1st Embodiment. The figure which shows the relationship between an occupation ratio and the intensity | strength of the frequency component in a FFT analysis result about the sensing reference electrode wire in 1st Embodiment. (A) is a figure which shows the shape of an ideal electrode wire, (b) is a figure which shows typically the shape of the electrode wire actually formed. The figure which shows the simulation result which evaluated the generation | occurrence | production degree of the moire about the pattern of an ideal electrode line and the pattern of the electrode line actually formed. The figure which shows the simulation result which changed the magnitude | size of the relay length of the relay part about the sensing electrode wire of 1st Embodiment, and evaluated the generation | occurrence | production degree of the moire. The figure which shows the other example of the preparation method of the sensing electrode wire of 1st Embodiment. The figure which shows the simulation result which changed the magnitude | size of the relay length of a relay part about the sensing electrode wire produced by the method shown in FIG. 14, and evaluated the generation | occurrence | production degree of the moire. The figure which shows the structure of the sensing electrode wire in 2nd Embodiment. The figure which shows an example of the sensing displacement electrode line created based on the sensing reference electrode line of 2nd Embodiment. The figure which shows an example of the sensing electrode line created based on the sensing displacement electrode line of 2nd Embodiment. The figure which shows an example of the drive electrode line produced based on the drive reference electrode line of 2nd Embodiment. The figure which shows the structure of the sensing electrode wire of the modification of 2nd Embodiment. Sectional drawing which shows the cross-section of the display apparatus in a modification. Sectional drawing which shows the cross-section of the display apparatus in a modification.

(First embodiment)
With reference to FIGS. 1-15, 1st Embodiment of an electroconductive film, a touchscreen, and a display apparatus is described. In addition, each figure is the figure which showed these structures typically in order to demonstrate the electroconductive film, touch panel, and display apparatus of 1st Embodiment, and each part which the structure shown by each figure has The size ratio may be different from the actual ratio.

[Configuration of display device]
The configuration of the display device will be described with reference to FIG.

As shown in FIG. 1, the display device 100 includes, for example, a laminated body in which a display panel 10 that is a liquid crystal panel and a touch panel 20 are bonded together by a single transparent adhesive layer (not shown), and further drives the touch panel 20. And a control unit that controls driving of the touch panel 20. Note that the transparent adhesive layer may be omitted as long as the relative position between the display panel 10 and the touch panel 20 is fixed by another configuration such as a housing.
A substantially rectangular display surface is partitioned on the surface of the display panel 10, and information such as an image based on image data is displayed on the display surface.

  The components constituting the display panel 10 are arranged in the following order from the components far from the touch panel 20. That is, the lower polarizing plate 11, the thin film transistor (hereinafter referred to as TFT) substrate 12, the TFT layer 13, the liquid crystal layer 14, the color filter layer 15, the color filter substrate 16, and the upper polarizing plate 17 are positioned in order from the touch panel 20. Yes.

  Among these, in the TFT layer 13, pixel electrodes constituting subpixels are located in a matrix. Further, the black matrix included in the color filter layer 15 has a lattice shape composed of a plurality of unit lattices having a rectangular shape. The black matrix defines a plurality of regions having a rectangular shape as regions facing each of the sub-pixels by such a lattice shape, and white light is red, green, and blue in each region defined by the black matrix. A colored layer for changing to any one of the colors is located.

  The display panel 10 is an EL panel that outputs colored light, and includes a red pixel that outputs red light, a green pixel that outputs green light, and a blue pixel that outputs blue light. If present, the above-described color filter layer 15 may be omitted. At this time, the boundary portion between adjacent pixels in the EL panel functions as a black matrix. Further, the display panel 10 may be a plasma panel that emits light by discharge. In this case, a boundary portion that partitions the red phosphor layer, the green phosphor layer, and the blue phosphor layer is a black matrix. Function.

  The touch panel 20 is a capacitive touch panel, and is a laminated body in which a conductive film 21 and a cover layer 22 are bonded together by a transparent adhesive layer 23, and transmits light that transmits information displayed on the display panel 10. have.

  Specifically, the transparent substrate 31, the plurality of drive electrodes 31 DP, the transparent adhesive layer 32, the transparent dielectric substrate 33, and the plurality of sensing electrodes are sequentially arranged from the components that make up the touch panel 20, closer to the display panel 10. 33SP, the transparent adhesive layer 23, and the cover layer 22 are located. Among these, the transparent substrate 31, the drive electrode 31DP, the transparent adhesive layer 32, the transparent dielectric substrate 33, and the sensing electrode 33SP constitute the conductive film 21.

  The transparent substrate 31 has light transmittance and insulating properties that transmit information such as an image displayed on the display surface of the display panel 10 and is superimposed on the entire display surface. The transparent substrate 31 is composed of a base material such as a transparent glass substrate, a transparent resin film, or a silicon substrate, for example. Examples of the resin used for the transparent substrate 31 include PET (Polyethylene Terephthalate), PMMA (Polymethyl methacrylate), PP (Polypropylene), PS (Polystyrene), and the like. The transparent substrate 31 may be a single-layer structure composed of one base material, or a multilayer structure in which two or more base materials are stacked.

  A surface of the transparent substrate 31 opposite to the display panel 10 is set as a drive electrode surface 31S, and a plurality of drive electrodes 31DP are arranged on the drive electrode surface 31S. A plurality of drive electrodes 31DP and a portion of the drive electrode surface 31S where the drive electrode 31DP is not located are bonded to the transparent dielectric substrate 33 by one transparent adhesive layer 32.

  The transparent adhesive layer 32 has a light transmission property that transmits information such as an image displayed on the display surface. For the transparent adhesive layer 32, for example, a polyether adhesive or an acrylic adhesive is used.

  The transparent dielectric substrate 33 has optical transparency that transmits information such as an image displayed on the display surface, and a relative dielectric constant suitable for detecting capacitance between electrodes. The transparent dielectric substrate 33 is composed of a base material such as a transparent glass substrate, a transparent resin film, or a silicon substrate, for example. Examples of the resin used for the transparent dielectric substrate 33 include PET, PMMA, PP, PS, and the like. The transparent dielectric substrate 33 may be a single-layer structure composed of one base material, or a multilayer structure in which two or more base materials are stacked.

  As a result of the plurality of drive electrodes 31DP being bonded to the transparent dielectric substrate 33 by the transparent adhesive layer 32, the plurality of drive electrodes 31DP are arranged on the back surface of the transparent dielectric substrate 33, which is the surface facing the transparent substrate 31.

  The surface of the transparent dielectric substrate 33 opposite to the transparent adhesive layer 32 is set as a sensing electrode surface 33S, and a plurality of sensing electrodes 33SP are arranged on the sensing electrode surface 33S. That is, the transparent dielectric substrate 33 is sandwiched between the plurality of drive electrodes 31DP and the plurality of sensing electrodes 33SP. The plurality of sensing electrodes 33SP and the portion where the sensing electrode 33SP is not located on the sensing electrode surface 33S are bonded to the cover layer 22 by one transparent adhesive layer 23.

  The transparent adhesive layer 23 has a light transmission property that transmits information such as an image displayed on the display surface. For the transparent adhesive layer 23, for example, a polyether adhesive or an acrylic adhesive is used. The adhesive used as the transparent adhesive layer 23 may be a wet laminate adhesive, a dry laminate adhesive, or a hot laminate adhesive.

  The cover layer 22 is formed from a glass substrate such as tempered glass or a resin film, and the surface of the cover layer 22 opposite to the transparent adhesive layer 23 is the surface of the touch panel 20 and functions as the operation surface 20S.

  In addition, the transparent contact bonding layer 23 may be omitted among the said components. In the configuration in which the transparent adhesive layer 23 is omitted, the surface facing the transparent dielectric substrate 33 among the surfaces of the cover layer 22 is set as the sensing electrode surface 33S, and one thin film formed on the sensing electrode surface 33S. A plurality of sensing electrodes 33SP may be formed by patterning.

  In manufacturing the touch panel 20, a method in which the conductive film 21 and the cover layer 22 are bonded together by the transparent adhesive layer 23 may be employed. As another example different from such a manufacturing method, A manufacturing method may be adopted. That is, a thin film layer made of a conductive metal such as copper is formed directly or through an underlayer on the cover layer 22 such as a resin film, and the sensing electrode 33SP has a pattern shape on the thin film layer. A resist layer is formed. Next, the thin film layer is processed into a plurality of sensing electrodes 33SP by a wet etching method using ferric chloride or the like, and a first film is obtained. Similarly to the sensing electrode 33SP, a thin film layer formed on another resin film functioning as the transparent substrate 31 is processed into a plurality of drive electrodes 31DP to obtain a second film. Then, the first film and the second film are attached to the transparent dielectric substrate 33 by the transparent adhesive layers 23 and 32 so as to sandwich the transparent dielectric substrate 33.

[Plane structure of conductive film]
With reference to FIG. 2, the planar structure of the conductive film 21 will be described focusing on the positional relationship between the sensing electrode 33SP and the drive electrode 31DP. 2 is a view of the conductive film 21 as viewed from the direction facing the surface of the transparent dielectric substrate 33, and each of the belt-like regions extending along the horizontal direction surrounded by the two-dot chain line is one Each of the strip-shaped regions extending along the vertical direction surrounded by the two-dot chain line indicates a region where one drive electrode 31DP is disposed. The numbers of sensing electrodes 33SP and drive electrodes 31DP are shown in a simplified manner.

  Further, in order to facilitate understanding of the configuration of the sensing electrode 33SP and the drive electrode 31DP, only the sensing electrode 33SP positioned at the uppermost side in FIG. In FIG. 2, only the drive electrode 31DP located on the leftmost side indicates a drive electrode line constituting the drive electrode 31DP by a thin line. In FIG. 2, the shape of the sensing electrode line and the shape of the drive electrode line are schematically shown.

  As shown in FIG. 2, in the sensing electrode surface 33S of the transparent dielectric substrate 33, each of the plurality of sensing electrodes 33SP has a band shape extending along the first electrode direction D1, which is one direction, and They are arranged along a second electrode direction D2 orthogonal to the first electrode direction D1. Each sensing electrode 33SP is insulated from another adjacent sensing electrode 33SP.

  Each sensing electrode 33SP is composed of a plurality of sensing electrode lines 33SR, and a sensing electrode line group 33SG which is a set of all the plurality of sensing electrode lines 33SR is arranged on the sensing electrode surface 33S. A metal film such as copper, silver, or aluminum is used as a material for forming the sensing electrode line 33SR. The sensing electrode line 33SR is formed by, for example, patterning a metal film formed on the sensing electrode surface 33S by etching. It is formed. Each of the plurality of sensing electrodes 33SP is individually connected to a detection circuit which is an example of a peripheral circuit of the touch panel 20 via the sensing pad 33P, and a current value is measured by the detection circuit.

  In the drive electrode surface 31S of the transparent substrate 31, each of the plurality of drive electrodes 31DP has a strip shape extending along the second electrode direction D2, and is arranged along the first electrode direction D1. Each drive electrode 31DP is insulated from another adjacent drive electrode 31DP.

  Each drive electrode 31DP is composed of a plurality of drive electrode lines 31DR, and a drive electrode line group 31DG that is a set of all the plurality of drive electrode lines 31DR is arranged on the drive electrode surface 31S. A metal film such as copper, silver or aluminum is used as a material for forming the drive electrode line 31DR. The drive electrode line 31DR is formed by, for example, patterning a metal film formed on the drive electrode surface 31S by etching. It is formed. Each of the plurality of drive electrodes 31DP is individually connected to a selection circuit which is an example of a peripheral circuit of the touch panel 20 via the drive pad 31P, and is selected by the selection circuit by receiving a drive signal output from the selection circuit.

  In plan view opposite to the surface of the transparent dielectric substrate 33, the portion where the sensing electrode 33SP and the drive electrode 31DP overlap each other is a capacitance detection unit ND having a quadrangular shape defined by the two-dot chain line in FIG. . One capacitance detection unit ND is a portion where one sensing electrode 33SP and one drive electrode 31DP intersect three-dimensionally, and detects a position touched by a user's finger or the like on the touch panel 20. The smallest unit possible.

  The method for forming the sensing electrode line 33SR and the drive electrode line 31DR is not limited to the above-described etching, and other methods such as a printing method may be used.

[Plane structure of display panel]
With reference to FIG. 3, the planar structure of the color filter layer 15 in the display panel 10, that is, the pixel arrangement of the display panel 10 will be described.
As shown in FIG. 3, the black matrix 15a of the color filter layer 15 is a lattice pattern composed of a plurality of unit lattices having a rectangular shape arranged along the first electrode direction D1 and the second electrode direction D2. have. One pixel 15P is composed of three unit lattices that are continuous along the first electrode direction D1, and the plurality of pixels 15P are arranged in a lattice shape along the first electrode direction D1 and the second electrode direction D2. It is out.

  Each of the plurality of pixels 15P includes a red coloring layer 15R for displaying red, a green coloring layer 15G for displaying green, and a blue coloring layer 15B for displaying blue. In the color filter layer 15, for example, the red colored layer 15R, the green colored layer 15G, and the blue colored layer 15B are repeatedly arranged in this order along the first electrode direction D1. The plurality of red colored layers 15R are continuously arranged along the second electrode direction D2, and the plurality of green colored layers 15G are arranged continuously along the second electrode direction D2, and the plurality of blue colored layers 15B. Are continuously arranged along the second electrode direction D2.

  One red colored layer 15R, one green colored layer 15G, and one blue colored layer 15B constitute one pixel 15P, and the plurality of pixels 15P includes the red colored layer 15R, green in the first electrode direction D1. The colored layers 15G and the blue colored layer 15B are arranged along the first electrode direction D1 while maintaining the order of arrangement. In other words, the plurality of pixels 15P are arranged in a stripe shape extending along the second electrode direction D2.

  The width along the first electrode direction D1 in the pixel 15P is the first pixel width P1, and the width along the second electrode direction D2 in the pixel 15P is the second pixel width P2. Each of the first pixel width P1 and the second pixel width P2 is set to a value according to the size of the display panel 10, the resolution required for the display panel 10, and the like.

[Electrical configuration of touch panel]
With reference to FIG. 4, the electrical configuration of touch panel 20 will be described together with the function of the control unit included in display device 100. Hereinafter, as an example of the capacitive touch panel 20, an electrical configuration of the mutual capacitive touch panel 20 will be described.

  As illustrated in FIG. 4, the touch panel 20 includes a selection circuit 34 and a detection circuit 35 as peripheral circuits. The selection circuit 34 is connected to the plurality of drive electrodes 31DP, the detection circuit 35 is connected to the plurality of sensing electrodes 33SP, and the control unit 36 included in the display device 100 is connected to the selection circuit 34 and the detection circuit 35. Yes.

  The control unit 36 generates and outputs a start timing signal for causing the selection circuit 34 to start generating a drive signal for each drive electrode 31DP. The control unit 36 generates and outputs a scan timing signal for causing the selection circuit 34 to sequentially scan the target to which the drive signal is supplied from the first drive electrode 31DP1 toward the nth drive electrode 31DPn.

  The control unit 36 generates and outputs a start timing signal for causing the detection circuit 35 to start detecting the current flowing through each sensing electrode 33SP. The control unit 36 generates and outputs a scanning timing signal for causing the detection circuit 35 to sequentially scan the detection target from the first sensing electrode 33SP1 toward the nth sensing electrode 33SPn.

  The selection circuit 34 starts generating a drive signal based on the start timing signal output from the control unit 36, and sets the output destination of the drive signal to the first drive electrode based on the scanning timing signal output from the control unit 36. Scanning from 31DP1 toward the nth drive electrode 31DPn.

  The detection circuit 35 includes a signal acquisition unit 35a and a signal processing unit 35b. Based on the start timing signal output from the control unit 36, the signal acquisition unit 35a starts acquiring a current signal that is an analog signal generated in each sensing electrode 33SP. Then, the signal acquisition unit 35a scans the current signal acquisition source from the first sensing electrode 33SP1 to the nth sensing electrode 33SPn based on the scanning timing signal output from the control unit 36.

  The signal processing unit 35b processes each current signal acquired by the signal acquisition unit 35a, generates a voltage signal that is a digital value, and outputs the generated voltage signal to the control unit 36. As described above, the selection circuit 34 and the detection circuit 35 generate the voltage signal from the current signal that changes in accordance with the change in capacitance, thereby changing the capacitance between the drive electrode 31DP and the sensing electrode 33SP. Measure.

  Based on the voltage signal output from the signal processing unit 35b, the control unit 36 detects a position touched by the user's finger or the like on the touch panel 20, and displays information on the detected position on the display surface of the display panel 10. It is used for various processes such as generating information. The touch panel 20 is not limited to the above-described mutual capacitive touch panel 20, and may be a self capacitive touch panel.

[Configuration of sensing electrode group]
The configuration of the sensing electrode line group 33SG will be described with reference to FIG.
As shown in FIG. 5, each of the plurality of sensing electrode wires 33SR has a bent line shape including a series of linear portions. Each sensing electrode line 33SR extends as a whole along the first electrode direction D1, and the plurality of sensing electrode lines 33SR are arranged at intervals along the second electrode direction D2. Each of the plurality of sensing electrode lines 33SR constituting one sensing electrode 33SP is connected to the sensing pad 33P at one end in the first electrode direction D1.

  Specifically, each of the plurality of sensing electrode lines 33SR includes a plurality of inclined portions 33E extending in a direction inclined with respect to the first electrode direction D1, and a plurality of relay portions 33Q connecting the ends of the two inclined portions 33E. And have. Both the inclined portion 33E and the relay portion 33Q have a linear shape, and the relay portion 33Q extends along the first electrode direction D1. The inclined portions 33E and the relay portions 33Q are alternately arranged along the sensing electrode lines 33SR.

  Each of the plurality of inclined portions 33E extends from the proximal end toward the distal end along the sensing electrode line 33SR, and has a length L1 along the direction in which the inclined portion 33E extends. In the plurality of inclined portions 33E, the length L1 is constant. Further, the plurality of inclined portions 33E have an inclined portion 33Ea having an inclination of an angle + θ1 with respect to a base axis A1 that is a straight line extending along the first electrode direction D1, and an inclination of an angle −θ1 with respect to the basic axis A1. The inclined portions 33Ea and the inclined portions 33Eb are alternately arranged along the first electrode direction D1. That is, in the plurality of inclined portions 33E, the absolute value of the inclination of each inclined portion 33E with respect to the base axis A1 is constant, and in one sensing electrode line 33SR, the inclined portion 33E having the positive inclination and the above inclination are The negative inclined portions 33E are alternately repeated along the first electrode direction D1. And the relay part 33Q is located between the inclined part 33Ea and the inclined part 33Eb, and the relay part 33Q has one distal end and the other proximal end of two inclined parts 33E adjacent to each other along the first electrode direction D1. Are connected.

  The length of the relay unit 33Q along the extending direction is the relay length Ls, and the relay length Ls is constant in the plurality of relay units 33Q. The angle formed between the adjacent inclined portion 33E and the relay portion 33Q, that is, the angle formed between the inclined portion 33E and the relay portion 33Q connected to each other is the adjacent angle γs, and the adjacent angle γs is greater than 90 °. . That is, the angle formed between the inclined portion 33E and the relay portion 33Q adjacent to each other is an obtuse angle. The adjacent angle γs between the inclined portion 33Ea and the relay portion 33Q is equal to the adjacent angle γs between the inclined portion 33Eb and the relay portion 33Q, and the adjacent angle γs is constant in one sensing electrode line 33SR.

The relay portion 33Q and the vicinity of the end portion of the inclined portion 33E connected to the relay portion 33Q constitute a bent portion having a bent line shape, and a bent portion corresponding to a mountain portion in the drawing and a bent portion corresponding to a valley portion in the drawing Are alternately arranged one by one along the sensing electrode line 33SR.
Each of the plurality of sensing electrode lines 33SR has a shape in which one sensing electrode line 33SR is translated along the second electrode direction D2.

  Here, a virtual straight line extending on the inclined portion 33E is a virtual line K1, and an intersection of the virtual lines K1 set for each of the two inclined portions 33E sandwiching one relay portion 33Q is a virtual intersection. 33KP. In other words, the virtual intersection point 33KP is an intersection point of the extension lines of the two inclined portions 33E connected to both ends of the one relay portion 33Q.

  The angle formed by the virtual line K1 set for each of the two inclined portions 33E connected to both ends of one relay portion 33Q is a bending angle αs. In one sensing electrode line 33SR, the bending angle αs is It is constant. Further, the bending angle αs is bisected by a straight line that extends in the direction along the second electrode direction D2 through the virtual intersection 33KP.

  A plurality of virtual intersections 33KP located on one side in the second electrode direction D2 with respect to one sensing electrode line 33SR is located on a straight line extending along the first electrode direction D1 and on the other side in the second electrode direction D2 The plurality of virtual intersections 33KP located at the same position are also located on a straight line extending along the first electrode direction D1.

  On one side or the other side of the second electrode direction D2, the distance between the virtual intersections 33KP adjacent along the first electrode direction D1 is the bending period Ws, and is set for one sensing electrode line 33SR. The bending period Ws is constant at the plurality of virtual intersections 33KP.

  Further, two virtual intersections 33KP adjacent to each other along the sensing electrode line 33SR, that is, a virtual intersection 33KP located on one side of the second electrode direction D2 and a virtual intersection located on the other side of the second electrode direction D2 The maximum length along the first electrode direction D1 between 33 KP is the inter-intersection distance Ts. In the first embodiment, the lengths along the first electrode direction D1 between the two virtual intersections 33KP adjacent to each other along the sensing electrode line 33SR are equal, and this length is the inter-intersection distance Ts. The inter-intersection distance Ts is a length that is half of the bending cycle Ws. In the sensing electrode line 33SR, the relay length Ls of the relay portion 33Q is preferably 0.2 times or less of the inter-intersection distance Ts.

  Further, the maximum length along the second electrode direction D2 between the virtual intersection 33KP located on one side in the second electrode direction D2 and the virtual intersection 33KP located on the other side in the second electrode direction D2 is The bending width Hs. In the first embodiment, the length along the second electrode direction D2 between the virtual intersection 33KP located on one side in the second electrode direction D2 and the virtual intersection 33KP located on the other side in the second electrode direction D2. The lengths are equal, and this length is the bending width Hs. In other words, the bending width Hs is a straight line where a plurality of virtual intersections 33KP on one side in the second electrode direction D2 is located and a straight line where a plurality of virtual intersections 33KP on the other side in the second electrode direction D2 are located. Is the length along the second electrode direction D2.

  The plurality of sensing electrode lines 33SR are arranged along the second electrode direction D2 with an electrode line interval Ps that is a constant interval. That is, the electrode line interval Ps is the distance between the adjacent virtual intersections 33KP located on a straight line extending along the second electrode direction D2 among the virtual intersections 33KP set for the adjacent sensing electrode lines 33SR. It is.

[Configuration of drive electrode group]
The configuration of drive electrode line group 31DG will be described with reference to FIG.
As shown in FIG. 6, the drive electrode line 31 </ b> DR has a shape obtained by rotating the sensing electrode line 33 </ b> SR by 90 degrees when viewed from the direction facing the surface of the transparent dielectric substrate 33.

  That is, each drive electrode line 31DR extends as a whole along the second electrode direction D2, and the plurality of drive electrode lines 31DR are arranged at intervals along the first electrode direction D1. Each of the plurality of drive electrode lines 31DR constituting one drive electrode 31DP is connected to the drive pad 31P at one end in the second electrode direction D2.

  Each of the plurality of drive electrode lines 31DR has a plurality of inclined portions 31E extending in a direction inclined with respect to the second electrode direction D2, and a plurality of relay portions 31Q connecting the ends of the two inclined portions 31E. ing. Both the inclined part 31E and the relay part 31Q have a linear shape, and the relay part 31Q extends along the second electrode direction D2. The inclined portions 31E and the relay portions 31Q are alternately arranged along the drive electrode lines 31DR. Each of the plurality of drive electrode lines 31DR has a shape in which one drive electrode line 31DR is translated along the first electrode direction D1.

  Each of the plurality of inclined portions 31E extends from the base end toward the distal end along the drive electrode line 31DR, and has a length L2 along the extending direction of the inclined portion 31E. The length L2 is constant in the plurality of inclined portions 31E, and the length L2 is equal to the length L1 of the inclined portion 33E in the sensing electrode line 33SR. In the plurality of inclined portions 31E, the absolute value of the inclination of each inclined portion 31E with respect to the base axis A2 that is a straight line extending along the second electrode direction D2 is constant, and the inclination is positive in one drive electrode line 31DR. The inclined portions 31E and the inclined portions 31E having a negative inclination are alternately repeated along the first electrode direction D1. The absolute value of the inclination of the inclined portion 31E with respect to the base axis A2 is equal to the absolute value of the inclination of the inclined portion 33E with respect to the base axis A1 of the sensing electrode line 33SR.

  The relay portion 31Q connects one distal end and the other proximal end of two inclined portions 31E adjacent to each other along the second electrode direction D2. The relay length Ld, which is the length along the extending direction in the relay unit 31Q, is constant in the plurality of relay units 31Q and is equal to the relay length Ls of the relay unit 33Q in the sensing electrode line 33SR. The adjacent angle γd, which is an angle formed between the inclined portion 31E and the relay portion 31Q adjacent to each other, is greater than 90 °, and the adjacent angle γd is constant in one drive electrode line 31DR, and the adjacent angle γs in the sensing electrode line 33SR. Is equal to

  A virtual straight line extending over the inclined portion 31E is the virtual line K2, and the intersection of the virtual lines K2 set for each of the two inclined portions 31E sandwiching one relay portion 31Q, that is, one relay An intersection of the extension lines of the two inclined portions 31E connected to both ends of the portion 31Q is a virtual intersection 31KP. The bending angle αd, which is the angle formed by the virtual line K2 set for each of the two inclined portions 31E, is constant in each drive electrode line 31DR.

  A plurality of virtual intersections 31KP located on one side in the first electrode direction D1 with respect to one drive electrode line 31DR are located on a straight line extending along the second electrode direction D2, and the other side in the first electrode direction D1 The plurality of virtual intersection points 31KP located at the same position are also located on a straight line extending along the second electrode direction D2.

  On one side or the other side of the first electrode direction D1, the bending period Wd, which is the distance between the virtual intersection points 31KP adjacent in the second electrode direction D2, is set for one drive electrode line 31DR. It is constant at a plurality of virtual intersections 31KP. Further, the lengths along the second electrode direction between the two virtual intersections 31KP adjacent to each other along the drive electrode line 31DR are equal, and this length is the distance between the intersections Td, and the distance between the intersections Td is The length is one half of the bending period Wd. Also in the drive electrode line 31DR, it is preferable that the relay length Ld of the relay part 31Q is 0.2 times or less the distance Td between the intersections.

  Further, the length along the first electrode direction D1 between the virtual intersection 31KP located on one side in the first electrode direction D1 and the virtual intersection 31KP located on the other side in the first electrode direction D1 is constant. Yes, this length is the bending width Hd.

  Of the virtual intersections 31KP set for the drive electrode lines 31DR adjacent to each other, the distance between the adjacent virtual intersections 31KP located on a straight line extending along the first electrode direction D1 is the electrode line interval Pd. The plurality of drive electrode lines 31DR are arranged along the first electrode direction D1 at a constant interval that is an electrode line interval Pd.

  The bending angle αd is equal to the bending angle αs in the sensing electrode line 33SR, the bending period Wd is equal to the bending period Ws in the sensing electrode line 33SR, the inter-intersection distance Td is equal to the inter-intersection distance Ts in the sensing electrode line 33SR, The bending width Hd is equal to the bending width Hs of the sensing electrode line 33SR, and the electrode line interval Pd is equal to the electrode line interval Ps with respect to the sensing electrode line 33SR.

[Detailed structure of conductive film]
With reference to FIG. 7, the electrode line pattern which is a pattern formed by superimposing sensing electrode line group 33SG and drive electrode line group 31DG is demonstrated.

  As shown in FIG. 7, in the conductive film 21, when viewed from the direction facing the surface of the transparent dielectric substrate 33, the pattern composed of the plurality of sensing electrode lines 33SR and the plurality of drive electrode lines 31DR are used. A pattern in which the pattern to be configured is superimposed is formed. At this time, these electrode lines are overlapped so that the sensing electrode 33SP and the drive electrode 31DP are orthogonal to each other, that is, the direction in which the sensing electrode line 33SR extends and the direction in which the drive electrode line 31DR extends are orthogonal. .

  At least some of the plurality of relay portions 33Q in the sensing electrode line 33SR are opposed to the gap between the drive electrode lines 31DR, and at least some of the plurality of relay portions 31Q in the drive electrode line 31DR are gaps between the sensing electrode lines 33SR. Is facing. Then, a plurality of shapes of figures surrounded by straight lines with various lengths and inclinations are arranged in the first electrode direction D1 and the second electrode direction D2 by the plurality of sensing electrode lines 33SR and the plurality of drive electrode lines 31DR. A pattern is formed.

[Electrode line pattern conditions]
With reference to FIGS. 8 to 13, the above-described bending angles αs, αd, bending periods Ws, Wd, distances between intersections Ts, Td, bending widths Hs, Hd, electrode line intervals Ps, Pd, and The reason for defining the ratio of the relay lengths Ld and Ls to the inter-intersection distances Ts and Td will be described.

  Hereinafter, the sensing electrode line 33SR will be described as an example, but the drive electrode line 31DR also has the same effect under the same conditions as the sensing electrode line 33SR, and the same effect can be obtained.

  The sensing electrode line 33SR is formed by connecting the line segments constituting the bent portion of the sensing reference electrode line 40KR linearly before the apex, based on the sensing reference electrode line 40KR having a periodic broken line shape shown in FIG. It has the resulting shape. That is, the sensing reference electrode line 40KR has a polygonal line shape that is bent at the virtual intersection point 33KP.

  Specifically, each of the plurality of sensing reference electrode lines 40KR includes a plurality of reference short line portions 40E having a linear shape, which are connected via a reference bent portion 40Q, which is a portion to which adjacent reference short line portions 40E are connected, It has a polygonal line shape extending along the first electrode direction D1. The position of the reference bent portion 40Q in the sensing reference electrode line 40KR corresponds to the position of the virtual intersection 33KP in the sensing electrode line 33SR created based on the sensing reference electrode line 40KR.

  Each reference short line portion 40E has a certain length Lk along the direction in which the reference short line portion 40E extends. The inclination of the reference short line portion 40E with respect to the base axis A1 matches the inclination of the inclined portion 33E with respect to the base axis A1 of the sensing electrode line 33SR. An angle formed by two reference short line portions 40E adjacent to each other is a reference angle Kαs, and the reference angle Kαs coincides with the above-described bending angle αs. The length between the reference bending portions 40Q adjacent along the first electrode direction D1 is the reference period KWs, and the reference period KWs coincides with the above-described bending period Ws. The length between the reference bent portions 40Q adjacent to each other along the sensing reference electrode line 40KR, that is, the length of one half of the reference period KWs is the reference intersection distance KTs, which is the distance between the intersections Ts described above. Match.

  Further, the width occupied by one sensing reference electrode line 40KR in the second electrode direction D2, that is, the length along the second electrode direction D2 between the reference bent portions 40Q adjacent to each other along the sensing reference electrode line 40KR is the reference. The width KHs is the same as the above-described bending width Hs. In the sensing reference electrode lines 40KR adjacent to each other, the length between the reference bent portions 40Q arranged along the second electrode direction D2 is the reference interval KPs, and the reference interval KPs matches the above-described electrode line interval Ps. To do.

  Each parameter of the reference angle Kαs, the reference period KWs, the reference intersection distance KTs, the reference width KHs, and the reference interval KPs uses a Fourier analysis, and a pattern of a plurality of sensing reference electrode lines 40KR and a pixel of the display panel 10 It is preferably set to a value that suppresses the occurrence of moire when superimposed on the pattern. Specifically, the moiré contrast that occurs when a pattern composed of a plurality of sensing reference electrode lines 40KR is overlapped with a pixel pattern of a predetermined period, and the pitch and angle of stripes that are visually recognized as moiré are calculated. The value of each parameter is set so that it is difficult to do so. At this time, it is preferable that the values of the respective parameters that can suppress the occurrence of moire are commonly obtained for the pixel patterns of the plurality of display panels 10 having different sizes and different resolutions. The plurality of display panels 10 to be superimposed may include at least two types of display panels having different sizes or two types of display panels having different resolutions.

  In Fourier analysis, frequency information is obtained by performing Fourier transform on the superimposed pattern, and the obtained two-dimensional Fourier pattern is convolved (convolution), then applied with a two-dimensional mask, and then subjected to inverse Fourier transform. To reconstruct the image. Since the pitch of the moire is larger than the period of the original pattern to be superimposed, it is only necessary that the two-dimensional mask removes high-frequency components by the two-dimensional mask and extracts only low-frequency components. By setting the size of the mask to a size that is determined according to the human visual response characteristics, the degree of moiré that is visible is determined after calculating the moiré contrast, pitch, and angle after image reconstruction. it can.

  The reference interval KPs is preferably set in a range of 10% to 600% of the first pixel width P1 and the second pixel width P2 in the display panel 10. When the first pixel width P1 and the second pixel width P2 are different, the larger pixel width of the first pixel width P1 and the second pixel width P2 may be used as a reference.

  If the reference interval KPs is 10% or more of the first pixel width P1 and the second pixel width P2, the ratio of the electrode lines in the pattern does not become excessive, so that the light transmittance in the touch panel 20 decreases. It can be suppressed. On the other hand, if the reference interval KPs is 600% or less of the first pixel width P1 and the second pixel width P2, the position detection accuracy on the touch panel is improved.

The reference width KHs is preferably set in a range where the occupation ratio KHs / KPs, which is the ratio of the reference width KHs to the reference interval KPs set as described above, is 0.7 or more and 1.3 or less.
The reason for defining the range of the occupation ratio KHs / KPs will be described with reference to FIG. 9 and FIG.

  FIG. 9 is a result of analyzing an example of a pattern including a plurality of sensing reference electrode lines 40KR illustrated in FIG. 8 by FFT (Fast Fourier Transformation), and includes a plurality of sensing reference electrode lines 40KR. The power spectrum by the two-dimensional Fourier transform of a pattern is shown. FIG. 10 highlights characteristic peaks, and weak points that are not related to the pattern of the sensing reference electrode line 40KR are omitted.

  The origin in the figure shows the peak of the direct current component, and in the two-dimensional frequency space, basic spatial frequency components f1 and f2 defined by the reference angle Kαs and the reference period KWs and higher-order components appear. In the figure, frequency components resulting from the reference period KWs appear on the left and right of the basic spatial frequency component f1 and on the left and right of the basic spatial frequency component f2.

  Here, a frequency component g which is a spatial frequency only in the v direction appears between the basic spatial frequency component f1 and the basic spatial frequency component f2. The frequency component g is a frequency component generated due to the reference interval KPs, and is derived from the periodicity of only the second electrode direction D2 included in the pattern of the sensing reference electrode line 40KR. High intensity of the frequency component g indicates that the frequency component of the element extending in the first electrode direction D1 is large in the pattern of the sensing reference electrode line 40KR, and in this case, the display panel 10 also extending in the first electrode direction D1. When the pixel pattern and the pattern of the sensing reference electrode line 40KR are overlapped, these patterns interfere with each other, and moire with high contrast is likely to occur.

  FIG. 10 shows a result of analyzing how the intensity of the frequency component g in the FFT analysis result changes when the reference width KHs and the occupation ratio KHs / KPs are changed. That is, the relationship between the intensity of the frequency component g and the degree of overlap between the region occupied by one sensing reference electrode line 40KR and the region occupied by another sensing reference electrode line 40KR along the first electrode direction D1 is shown. In FIG. 10, the vertical axis represents the logarithmic display of the relative value obtained by dividing the intensity of the frequency component g by the intensity of the DC component of the entire pattern of the sensing reference electrode line 40KR, and the horizontal axis represents the occupation ratio KHs / KPs. Show.

  As shown in FIG. 10, when the occupation ratio KHs / KPs is increased from 0.4, if the occupation ratio KHs / KPs exceeds 0.7, the intensity of the frequency component g rapidly decreases, and the occupation ratio When KHs / KPs is 1.0, the intensity of the frequency component g is minimum. When the occupation ratio KHs / KPs exceeds 1.0, the intensity of the frequency component g increases, and when the occupation ratio KHs / KPs exceeds 1.3, the intensity of the frequency component g becomes high and constant.

  Therefore, when the occupation ratio KHs / KPs is 0.7 or more and 1.3 or less, the intensity of the frequency component g can be suppressed low, and therefore, moire is generated when the pixel pattern and the pattern of the sensing reference electrode line 40KR are overlaid. In particular, when the occupation ratio KHs / KPs is 1.0, the intensity of the frequency component g is minimum, which suggests that moiré is least likely to occur.

  The reference angle Kαs is preferably 95 degrees or more and 150 degrees or less, and more preferably 100 degrees or more and 140 degrees or less. When the reference angle Kαs is 95 degrees or more, the number of the reference short line portions 40E increases, and the ratio of the electrode lines in the pattern is suppressed from being excessive. Therefore, a decrease in light transmittance in the touch panel 20 is suppressed. It is done. On the other hand, if the reference angle Kαs is 150 degrees or less, the reference period KWs is kept in a range that is not too large, and therefore it is easy to set the reference interval KPs and the occupation ratio KHs / KPs to values within appropriate ranges. It becomes. When the reference angle Kαs is 90 degrees, the ratio between the reference period KWs and the reference width KHs is 2: 1. When the occupation ratio KHs / KPs is 1.0, the ratio between the reference period KWs and the reference interval KPs. The ratio is 2: 1. As a result, the interference between the reference period KWs and the reference interval KPs becomes strong, which is not preferable.

  That is, in the sensing electrode wire 33SR, the bending angle αs is preferably 95 degrees or more and 150 degrees or less, and more preferably 100 degrees or more and 140 degrees or less. The electrode line interval Ps is preferably set in the range of 10% to 600% of the first pixel width P1 and the second pixel width P2 in the display panel 10. Further, the bending width Hs is preferably set in a range where the ratio (Hs / Ps) of the bending width Hs to the electrode line interval Ps is 0.7 or more and 1.3 or less.

  The sensing electrode wire 33SR is changed from a shape near the bent portion of the sensing reference electrode wire 40KR to a shape connecting the reference short wire portion 40E with a line segment having a length of the relay length Ls before the reference bent portion 40Q. Created by. The reason for defining the ratio of the relay length Ls to the inter-intersection distance Ts (reference intersection distance KTs) will be described.

  First, with reference to FIG. 11, the structure of the electrode line in which the local line width is increased in the manufacturing process will be described. FIG. 11A is a diagram illustrating an example of an ideal electrode line pattern, that is, an example of a designed electrode line pattern. The electrode line 50R illustrated in FIG. The same configuration as the sensing reference electrode line 40KR shown in FIG. The line width of the electrode line 50R is constant between the end and the center of the short line portion 50E corresponding to the reference short line portion 40E, that is, apart from the bent portion 50Q even in the vicinity of the bent portion 50Q corresponding to the reference bent portion 40Q. Even in this portion, the line width of the electrode line 50R does not change. The electrode wire 50R has a sharp shape at the bent portion 50Q.

  FIG. 11B is a diagram schematically showing an example of the shape of an electrode line actually formed when the electrode line 50R is to be formed by etching a metal thin film. In the vicinity of the bent portion 50Q of the electrode line 50R, the extending direction of the electrode line 50R changes abruptly in the unit area. Therefore, when the bent portion 50Q is to be formed, a portion where the vicinity of the bent portion 50Q is to be formed. Thus, the flow of the etching solution is uneven. As a result, even if the shape of the electrode line 50R is accurately reproduced as the shape of the mask used for etching, the actually formed electrode line 60R is in the vicinity of the bent portion 60Q, that is, the end of the short line portion 60E. The line width of the electrode line 60R is increased at the portion, and the bent portion 60Q is formed in a shape that swells mainly inside the corner portion than the ideal bent portion 50Q.

  On the other hand, in the sensing electrode line 33SR of the present embodiment, the inclined portion 33E is connected by the relay portion 33Q before the virtual intersection 33KP. Accordingly, the angle between the inclined portion 33E and the relay portion 33Q is equal to the angle between the two virtual lines K1 at the virtual intersection 33KP, that is, the two short line portions at the bent portion 50Q of the electrode wire 50R. It is larger than the size of the angle formed by 50E. Specifically, the angle formed by the two virtual lines K1 at the virtual intersection 33KP is the bending angle αs, whereas the adjacent angle γs that is the angle formed by the inclined portion 33E and the relay portion 33Q. Is a size obtained by adding an angle θ1 of inclination of the inclined portion 33E with respect to the first electrode direction D1 to the bending angle αs.

  Therefore, in the sensing electrode line 33SR, the change in the unit area in the extending direction of the electrode line at the bent portion is gentler than that of the electrode line 50R. It is suppressed that the line width becomes locally thick. As a result, it is possible to suppress a deviation between the design value and the actual measurement value in the electrical characteristics of the touch panel 20. Further, since it is difficult for a portion where the line width of the electrode line is locally thick to be noticeable when viewed from the operation surface 20S of the touch panel 20, the appearance quality of the touch panel 20 viewed from the operation surface 20S is deteriorated or the display device is displayed. A reduction in the quality of an image viewed at 100 can also be suppressed.

  In order to enhance the effect of suppressing local expansion of the line width of the electrode line, the relay length Ls of the relay part 33Q is preferably at least twice as long as the line width of the sensing electrode line 33SR. Since the reference resolution when forming the electrode line is the line width of the electrode line, if the relay length Ls is twice or more the line width of the electrode line, the local expansion of the line width of the electrode line is suppressed. The sensing electrode wire 33SR can be formed.

Even when the electrode line is formed by a method other than etching, it is difficult to precisely form a minute corner portion near the bent portion 50Q of the electrode line 50R. Even if is used, the effect according to the above-described effect can be obtained.
Here, the relationship between the ratio of the relay length Ls of the relay unit 33Q to the distance Ts between the intersections in the sensing electrode line 33SR and the moire will be described.

  FIG. 12 shows each of a pattern composed of electrode lines 50R having an ideal shape and a pattern composed of electrode lines 60R having a shape actually formed when these electrode lines 50R are formed. The simulation result about the moire produced when it superimposes with a pixel pattern is shown. Moire is a phenomenon caused by the relative relationship between the periodicity of the electrode line pattern and the periodicity of the pixel pattern. In particular, the relationship between the spacing between the electrode lines in the electrode line pattern and the pixel width in the pixel pattern is the moiré. It is an important factor that affects the occurrence of Therefore, six test examples having different ratios between the distance between the electrode lines and the pixel width were used as simulation targets.

  Table 1 shows a combination of the electrode line pattern and the pixel pattern in each of Test Examples 1 to 6 to be simulated, and a pixel width (first pixel width P1, first pixel pattern) in each of Test Examples 1 to 6. The ratio between the electrode lines of the electrode line pattern (reference interval KPs, electrode line interval Ps) with respect to 2 pixel width P2) is shown.

  As the electrode line pattern, three types of patterns A-1, A-2, and A-3 having different intervals between the electrode lines are used, and as the pixel pattern, two types of patterns B-1 having different pixel widths, B-2 was used. The pixel patterns B-1 and B-2 correspond to the resolution of a display panel of, for example, 13.3 inches to 19 inches used in a general notebook personal computer, and the first pixel width P1 and the second pixel pattern in each pixel pattern. It is equal to the pixel width P2.

  The moiré contrast used in the evaluation of moiré is an index that represents the density of moiré.The moiré density obtained by simulation is digitized, and the difference between the maximum and minimum values is the sum of the maximum and minimum values. It is a value calculated by dividing. In FIG. 12, the moiré contrast when the pattern of the ideal electrode line 50R is used is 1, and the ratio of the moiré contrast when the pattern of the electrode line 60R that is actually formed is used is shown on the vertical axis. . The larger the moiré contrast value, the darker the stripes that appear as moiré, and the moiré is more visible.

  As shown in FIG. 12, in any test example, the moiré contrast when the pattern of the electrode line 60R is used is larger than the moiré contrast when the pattern of the ideal electrode line 50R is used. It has risen to about 15 to 1.4 times. That is, in the pattern in which the line width of the electrode line is locally thick in the vicinity of the bent portion, such as the pattern of the electrode line 60R, the moire is less than that of the electrode line pattern in which the bent portion is precisely formed. It was confirmed that it was strongly visible. This is because when the line width of the electrode line is locally thick in the vicinity of the bent portion, it becomes easy to visually recognize the expanded portion of the line width so that it is arranged in a dot pattern. This is considered to be because it is easily recognized as a periodic structure having periodicity in the same direction.

  FIG. 13 shows the combinations of the electrode line pattern and the pixel pattern in each of Test Examples 1 to 6, with the electrode line shape being the shape of the sensing electrode line 33SR of the present embodiment, and the relay length Ls of the relay unit 33Q being changed. The simulation result about the moire which arises in the case of a case is shown.

  In FIG. 13, the moiré contrast when the pattern of the electrode line 50R is used is 1, and the ratio of the moiré contrast when the pattern of the sensing electrode line 33SR of the present embodiment is used is shown on the vertical axis. In FIG. 13, the relay length Ls of the relay portion 33Q in each electrode line pattern is shown on the horizontal axis as a ratio to the inter-intersection distance Ts. As the ratio of the relay length Ls to the inter-interval distance Ts increases, the length L1 of the inclined portion 33E decreases.

  In FIG. 13, the relationship between the moiré contrast obtained for each test example and the ratio of the relay length Ls to the inter-intersection distance Ts is shown together with an approximate curve for the plotted points.

  As shown in FIG. 12, when the pattern of the electrode line 60R in which the line width of the electrode line is locally thick in the vicinity of the bent portion is used, the pattern of the electrode line 50R is used. The moire contrast increases to about 1.15 times to 1.4 times. As shown in FIG. 13, if the ratio of the relay length Ls to the inter-interval distance Ts is 0.2 or less, the moiré contrast when the pattern of the sensing electrode line 33SR is used in any test example is the electrode line. It can be suppressed to 1.1 times or less of the moire contrast when the 50R pattern is used. Therefore, if the relay length Ls of the relay part 33Q is 0.2 times or less of the inter-intersection distance Ts, it is compared with the electrode line pattern in which the line width of the electrode line is locally thick in the vicinity of the bent portion. Thus, it is possible to suppress the moire from being visually recognized.

  Further, as shown in FIG. 13, when the ratio of the relay length Ls to the inter-interval distance Ts is 0.15 or less, the pattern of the sensing electrode line 33SR is used in the approximate curve of the result shown in each test example. The moiré contrast can be suppressed to 1.03 times or less of the moiré contrast when the pattern of the electrode lines 50R is used. In such a range, the pattern of the electrode line 50R was used depending on the relationship between the pixel pattern and the electrode line pattern, that is, the ratio of the electrode line interval Ps to the pixel widths P1 and P2, as in Test Example 5 and the like. The moiré contrast is smaller when the pattern of the sensing electrode wire 33SR composed of the inclined portion 33E and the relay portion 33Q is used. Therefore, if the relay length Ls of the relay unit 33Q is 0.15 times or less of the inter-intersection distance Ts, it is further suppressed that the moire is visually recognized.

  By the way, in the method of creating the sensing electrode line 33SR, the reference short line portion 40E adjacent to each other is separated by the line segment of the relay length Ls without changing the inclination of the reference short line portion 40E with respect to the first electrode direction D1 in the sensing reference electrode line 40KR. By connecting, the shape of the sensing electrode wire 33SR was obtained. Therefore, when the sensing electrode wire 33SR is created from the sensing reference electrode wire 40KR having a predetermined shape, the longer the relay length Ls, the shorter the inclined portion 33E of the created sensing electrode wire 33SR, while the relay length Even if Ls changes, the inclination of the inclined portion 33E with respect to the first electrode direction D1 does not change.

  On the other hand, as a method of creating the sensing electrode wire 33SR composed of the inclined portion 33E inclined with respect to the first electrode direction D1 and the relay portion 33Q connecting the two inclined portions 33E, as shown in FIG. There is a method of obtaining the shape of the sensing electrode wire 33SR by connecting the reference short wire portion 40E with the line segment of the relay length Ls without changing the length of the reference short wire portion 40E in the sensing reference electrode wire 40KR. In this case, the longer the relay length Ls, the greater the inclination of the inclined portion 33E with respect to the first electrode direction D1 in the sensing electrode line 33SR that is created. Even if the relay length Ls changes, the length of the inclined portion 33E increases. does not change. In FIG. 14, the sensing reference electrode line 40KR is indicated by a broken line, and the sensing electrode line 33SR is indicated by a solid line.

  Note that the position of the virtual intersection 33KP set for the sensing electrode line 33SR obtained in this way does not coincide with the position of the reference bending portion 40Q in the sensing reference electrode line 40KR, and the bending width Hs and the reference width The size is different from KHs.

  FIG. 15 shows the combinations of the electrode line pattern and the pixel pattern in each of the test examples 1 to 6 described above, and the electrode line shape is changed without changing the length of the reference short line portion 40E. The simulation result about the moire produced when it is set as the shape of the sensing electrode wire 33SR obtained by this is shown.

  As shown in FIG. 15, when the length of the inclined portion 33 </ b> E is constant, the degree of increase in moire contrast when the relay length Ls is increased is larger than in FIG. 13. In all the test examples, the distance Ts between the intersections when the moire contrast when the pattern of the sensing electrode line 33SR is used is 1.1 times or less than the moire contrast when the pattern of the electrode line 50R is used. The ratio of the relay length Ls to is 0.05 or less, suggesting that the range of the relay length Ls allowed for suppressing moire is narrower than the result of FIG. This is because if the inclination of the inclined portion 33E with respect to the first electrode direction D1 increases due to the increase of the relay length Ls, the bending angle αs of the sensing electrode line 33SR decreases, which increases moire. It is believed that there is.

  Therefore, when the sensing electrode wire 33SR is created based on the sensing reference electrode wire 40KR having a predetermined shape, the reference short wire portions 40E adjacent to each other are changed without changing the inclination of the reference short wire portion 40E with respect to the first electrode direction D1. It is preferable to obtain the shape of the sensing electrode wire 33SR by connecting with a line segment of the relay length Ls.

  However, even if it is a shape obtained by connecting with the line segment of the relay length Ls without changing the length of the reference short line portion 40E, it is compared with a broken line-shaped electrode line passing through the inclined portion 33E and the virtual intersection point 33KP. Since the change in the extending direction of the electrode line at the bent portion is gentle, an effect of suppressing local expansion of the line width of the electrode line in the vicinity of the bent portion can be obtained in the manufacturing process. Further, it is suggested that the same result as in FIG. 13 can be obtained by evaluating the degree of moire generated with reference to a broken line electrode line passing through the inclined portion 33E and the virtual intersection 33KP.

  Similarly for the drive electrode line 31DR, the bending angle αd, the bending period Wd, the distance Td between the intersection points, the bending width Hd, and the electrode line interval Pd are the bending angle αs, the bending period Ws, the intersection point in the above description. It is preferable to set so as to satisfy the same conditions as those shown for each of the inter-distance Ts, the bending width Hs, and the electrode line interval Ps.

  That is, the parameters of the bending angle αd, the bending period Wd, the distance between the intersection points Td, the bending width Hd, and the electrode line interval Pd are the reference electrode line pattern having a periodic broken line shape bent at the virtual intersection point 31KP. It is preferably set to a value that suppresses the generation of moire when the pixel pattern of the display panel 10 is superimposed. The bending angle αd is preferably 95 degrees or more and 150 degrees or less, and more preferably 100 degrees or more and 140 degrees or less. The electrode line interval Pd is preferably set in a range of 10% to 600% of the first pixel width P1 and the second pixel width P2 in the display panel 10. The bending width Hd is preferably set in a range where the ratio of the bending width Hd to the electrode line interval Pd (Hd / Pd) is 0.7 or more and 1.3 or less.

  If the relay length Ld of the relay part 31Q is 0.2 times or less of the distance Td between the intersections, it is compared with the electrode line pattern in which the line width of the electrode line is locally thick in the vicinity of the bent portion. Thus, it is possible to suppress the moire from being visually recognized when overlapping with the pixel pattern.

  In other words, the shape of the sensing electrode line 33SR is, in other words, a connecting portion that is a portion connecting the two inclined portions 33E adjacent to each other in the sensing electrode line 33SR is an intersection of the extended lines of these inclined portions 33E. The shape is located closer to these inclined portions 33E in the second electrode direction D2 than the virtual intersection point 33KP. That is, within the triangular area surrounded by connecting the virtual intersection 33KP and the two inclined portions 33E in a straight line, the ends of the two inclined portions 33E closer to the virtual intersection 33KP are connected to each other. It is. The inclined portion 33E is a connected portion that is connected to another inclined portion 33E by a relay portion 33Q that is a linear connecting portion.

  Similarly, the shape of the drive electrode line 31DR is a virtual intersection point 31KP in which a connecting portion, which is a portion connecting two inclined portions 31E adjacent to each other in the drive electrode line 31DR, is an intersection of the extended lines of these inclined portions 31E. Rather, the shape is located closer to these inclined portions 31E in the first electrode direction D1. The inclined portion 31E is a connected portion that is connected to another inclined portion 31E by a relay portion 31Q that is a linear connecting portion.

  According to such a configuration, since the change in the unit area in the extending direction of the electrode line at the bent portion is gentle as compared with the broken line-shaped electrode line passing through the inclined portions 33E and 31E and the virtual intersections 33KP and 31KP, In the manufacturing process, it is possible to prevent the electrode line from locally increasing in the vicinity of the bent portion.

  In the first embodiment, the transparent dielectric substrate 33 is an example of a transparent dielectric layer. When the surface of the transparent dielectric substrate 33 is the first surface, the back surface of the transparent dielectric substrate 33 is the second surface, the sensing electrode line 33SR is the first electrode line, and the drive electrode line 31DR is the second surface. The first electrode direction D1 is the first direction and the second intersecting direction, and the second electrode direction D2 is the second direction and the first intersecting direction. When the surface of the transparent dielectric substrate 33 is the second surface, the back surface of the transparent dielectric substrate 33 is the first surface, the sensing electrode line 33SR is the second electrode line, and the drive electrode line 31DR is the first surface. The first electrode direction D1 is the second direction and the first intersecting direction, and the second electrode direction D2 is the first direction and the second intersecting direction.

As described above, according to the first embodiment, the effects listed below can be obtained.
(1) In each of the sensing electrode line 33SR and the drive electrode line 31DR, the inclined parts 33E and 31E are connected by the relay parts 33Q and 31Q before the virtual intersections 33KP and 31KP. Therefore, the change in the unit area in the extending direction of the electrode line at the bent portion is moderate as compared with the broken line-shaped electrode line passing through the inclined portions 33E and 31E and the virtual intersections 33KP and 31KP. Therefore, the electrode lines 33SR and 31DR can be easily formed, and the line width of the electrode lines can be prevented from locally expanding in the vicinity of the bent portion in the manufacturing process. As a result, it is possible to suppress a difference between the design value and the actual measurement value in the electrical characteristics of the touch panel 20 and the deterioration of the quality of the image visually recognized on the display device 100.

  (2) The relay portion 33Q extends along the first electrode direction D1, and the relay portion 31Q extends along the second electrode direction D2. According to such a configuration, the effect (1) can be accurately obtained as compared with the configuration in which the relay portions 33Q and 31Q are greatly inclined with respect to the direction in which the electrode lines extend.

  (3) In each of the sensing electrode line 33SR and the drive electrode line 31DR, the relay lengths Ls and Ld of the relay portions 33Q and 31Q are not more than 0.2 times the distances Ts and Td between the intersection points. Thus, the electrode line actually formed with the polygonal line shape passing through the inclined portions 33E and 31E and the virtual intersections 33KP and 31KP as the design shape, and the line width of the electrode line is locally thick in the vicinity of the bent portion. Compared with the electrode line pattern, the moiré can be suppressed from being visually recognized when overlapping with the pixel pattern.

  (4) In each of the pattern of the sensing electrode line 33SR and the pattern of the drive electrode line 31DR, the ratio of the bending widths Hs and Hd to the electrode line intervals Ps and Pd is 0.7 or more and 1.3 or less. According to such a configuration, the intensity of the frequency component of the element extending in the extending direction of the reference electrode line, which appears in the FFT analysis of the reference electrode line pattern that is the basis of the sensing electrode line 33SR and the drive electrode line 31DR, can be suppressed. In addition, moire becomes difficult to be visually recognized when the pattern of the reference electrode line and the pixel pattern are overlapped. As a result, even in the electrode line pattern created based on the reference electrode line, it is easier to suppress the moire from being visually recognized when overlapping with the pixel pattern.

(Modification of the first embodiment)
The first embodiment can be implemented with the following modifications.
The extending direction of the relay part 33Q may be inclined with respect to the first electrode direction D1, and the extending direction of the relay part 31Q may be inclined with respect to the second electrode direction D2. Even in such a configuration, if the inclined portions 33E and 31E are connected by the relay portions 33Q and 31Q before the virtual intersections 33KP and 31KP, the effect according to the above (1) can be obtained. However, in order to accurately obtain the effect of suppressing the local expansion of the line width of the electrode line, the absolute value of the angle of inclination of the relay portion 33Q with respect to the first electrode direction D1 and the second electrode direction D2 Each absolute value of the inclination angle of the relay portion 31Q is preferably 10 ° or less.

  Each of the bending angle αs, the bending period Ws, the distance between intersections Ts, the bending width Hs, and the electrode line interval Ps in the sensing electrode line 33SR, the bending angle αd, the bending period Wd, and the distance between the intersections Td in the drive electrode line 31DR The bending width Hd and the electrode line interval Pd may be different from each other.

  The relay length Ls of the relay part 33Q in the sensing electrode line 33SR and the relay length Ld of the relay part 31Q in the drive electrode line 31DR may be the same or different. Further, the plurality of relay portions 33Q in the plurality of sensing electrode lines 33SR may include relay portions 33Q having different relay lengths Ls. Further, the relay units 33Q having different relay lengths Ls may be included in the plurality of relay units 33Q in one sensing electrode line 33SR. Similarly, relay portions 31Q having different relay lengths Ld may be included in the plurality of relay electrode portions 31Q in the plurality of drive electrode lines 31DR or one drive electrode line 31DR.

  The shape of the reference electrode line that is the basis of the sensing electrode line 33SR and the drive electrode line 31DR is not limited to the shape of the above-described embodiment, and may be a periodic bent line shape. Specifically, the shape of the reference electrode line is a bent line shape in which peaks and valleys are alternately repeated, and a plurality of reference bent portions located in the peaks and a plurality of references located in the valleys. The bent portion only needs to be positioned on each of the other straight lines extending along the direction in which the reference electrode line extends. For example, in the sensing reference electrode line 40KR, the reference angle Kαs is not bisected by a straight line that passes through the reference bent part 40Q and extends in a direction orthogonal to the direction in which the sensing reference electrode line 40KR extends, and is adjacent to each other. The angle formed by 40E may be an asymmetric angle with respect to the straight line.

(Second Embodiment)
With reference to FIGS. 16-20, 2nd Embodiment of an electroconductive film, a touch panel, and a display apparatus is described. Below, it demonstrates centering around the difference between 2nd Embodiment and 1st Embodiment, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

[Configuration of sensing electrode group]
With reference to FIG. 16, the structure of sensing electrode wire group 33SG of 2nd Embodiment is demonstrated.
As shown in FIG. 16, in the sensing electrode line 33SR of the second embodiment, the position of the virtual intersection 33KP changes irregularly. That is, for the plurality of virtual intersections 33KP located on one side of the second electrode direction D2 with respect to the sensing electrode line 33SR, the position of the virtual intersection 33KP in the second electrode direction D2 is one side of the second electrode direction D2. The order of the virtual intersections 33KP is irregularly changed. Similarly, for the plurality of virtual intersections 33KP located on the other side of the second electrode direction D2 with respect to the sensing electrode line 33SR, the positions of the virtual intersection 33KP in the second electrode direction D2 are the same as those in the second electrode direction D2. The order of the virtual intersections 33KP on the other side changes irregularly.

  In such a configuration, the plurality of virtual intersections 33KP are not located on one straight line on either one side or the other side in the second electrode direction D2, and the line connecting these virtual intersections 33KP is irregular. A broken line that bends in the direction. In addition, each of the length of the inclined portion 33E and the absolute value of the inclination of the inclined portion 33E with respect to the base axis A1 is between a plurality of inclined portions 33E arranged along the first electrode direction D1 in one sensing electrode line 33SR. It changes irregularly with respect to the arrangement order of the inclined portions 33E.

  Further, in one sensing electrode line 33SR, each of the adjacent angle γs, the bending angle αs, and the bending period Ws is not constant, and in the plurality of sensing electrode lines 33SR, the electrode line interval between the adjacent sensing electrode lines 33SR. Ps is not constant.

  Further, in the above configuration, the inter-intersection distance Ts is the maximum length along the first electrode direction D1 between the two virtual intersections 33KP adjacent to each other along the sensing electrode line 33SR. The bending width Hs is between the virtual intersection 33KP located on one side of the second electrode direction D2 and the virtual intersection 33KP located on the other side of the second electrode direction D2 with respect to the sensing electrode line 33SR. It is the maximum length along the second electrode direction D2. That is, the bending width Hs is equal to the virtual intersection 33KP located on the outermost side of the second electrode direction D2 on one side of the second electrode direction D2, and the second electrode direction D2 on the other side of the second electrode direction D2. This is the length along the second electrode direction D2 between the virtual intersection 33KP located outside.

[How to create sensing electrode wires]
With reference to FIG. 17 and FIG. 18, a method of creating the sensing electrode wire 33SR of the second embodiment will be described. In the sensing electrode line 33SR of the second embodiment, the position of the reference bent portion 40Q in the sensing reference electrode line 40KR described in the first embodiment is irregularly displaced, and then the shape in the vicinity of the reference bent portion 40Q is changed to the reference. It is obtained by changing the short line portion 40E into a shape connected by a line segment of the relay length Ls.

  As shown in FIG. 17, first, the sensing displacement electrode wire 45TR is created by irregularly displacing the position of the reference bent portion 40Q with the sensing reference electrode wire 40KR. The sensing reference electrode line 40KR is set as a virtual electrode line having a first virtual bent part and a second virtual bent part as the reference bent part 40Q. The first virtual bent portion and the second virtual bent portion are alternately arranged periodically one by one along the sensing reference electrode line 40KR, and the plurality of first virtual bent portions and the plurality of second virtual bent portions are: It is located on a separate straight line extending along the first electrode direction D1. A sensing displacement electrode line 45TR, which is a second virtual electrode line, is created from the sensing reference electrode line 40KR, which is the first virtual electrode line.

  The position of the reference bent portion 40Q is moved within a rhombic displacement region Ss centered on the reference bent portion 40Q. In one sensing displacement electrode line 45TR, the position of each reference bent portion 40Q in one sensing reference electrode line 40KR is along the first electrode direction D1 of the reference bent portion 40Q within the displacement region Ss for each reference bent portion 40Q. It has a shape that is moved irregularly with respect to the order of the sequence.

  FIG. 17 shows an example of the pattern of the sensing displacement electrode line 45TR obtained by irregularly displacing the position of each reference bent portion 40Q in the plurality of sensing reference electrode lines 40KR within the displacement region Ss. In FIG. 17, the sensing reference electrode line 40KR is indicated by a thin line, and the sensing displacement electrode line 45TR is indicated by a thick line.

  The displacement region Ss has a rhombus shape having a reference direction diagonal line Ns1 which is a diagonal line extending along the first electrode direction D1 and a cross direction diagonal line Ns2 which is a diagonal line extending along the second electrode direction D2. The length of the reference direction diagonal line Ns1 is the length ds1, and the length ds1 is preferably set in a range of more than 0 times and less than 0.5 times the reference period KWs. The length of the diagonal line Ns2 in the intersecting direction is the length ds2, and the length ds2 is preferably set in the range of more than 0 and less than or equal to 1.0 times the reference interval KPs.

  If the lengths ds1 and ds2 are equal to or less than the upper limit, it is possible to suppress the pattern of the created sensing electrode line 33SR from becoming excessively irregular. For example, the adjacent sensing electrode lines 33SR intersect or contact each other. Is suppressed.

  As shown in FIG. 18, subsequently, the bent portion of the sensing displacement electrode wire 45TR, that is, the shape in the vicinity of the displacement bent portion 45Q that is the reference bent portion 40Q after being moved in the displacement region Ss, The sensing electrode line 33SR is created by changing the line segment extending toward 45Q to a shape connected by the line segment of the relay length Ls before the displacement bending portion 45Q. The position of the displacement bending portion 45Q of the sensing displacement electrode line 45TR corresponds to the position of the virtual intersection 33KP in the sensing electrode line 33SR created based on the sensing displacement electrode line 45TR.

  In the second embodiment, the reference angle Kαs, the reference period KWs, and the reference interval KPs of the sensing reference electrode line 40KR are the bending angle αs, the bending period Ws, and the electrode line in the most part of the sensing electrode line 33SR. Each of the intervals Ps does not coincide with each other, and each of the reference intersection distance KTs and the reference width KHs does not coincide with each of the distance between intersections Ts and the bending width Hs. It is preferable that each of the reference angle Kαs, the reference period KWs, the reference intersection distance KTs, the reference width KHs, and the reference interval KPs of the sensing reference electrode line 40KR is set so as to satisfy the same condition as in the first embodiment.

  Here, it is preferable that the relay length Ls of each relay part 33Q of the sensing electrode line 33SR is 0.2 times or less the reference intersection distance KTs of the sensing reference electrode line 40KR. In such a configuration, the relay length Ls is often 0.2 times or less the intersection distance Ts of the sensing electrode line 33SR.

  For example, when the sensing electrode line 33SR is created, a relay length Ls having a predetermined value with a ratio of the sensing reference electrode line 40KR to the reference intersection distance KTs being 0.2 or less is determined and connected by a line segment of the relay length Ls. In this way, the shape in the vicinity of each displacement bending portion 45Q in the sensing displacement electrode wire 45TR may be changed.

  The sensing displacement electrode line 45TR described above is a virtual electrode line used for explaining the process of creating the sensing electrode line 33SR from the sensing reference electrode line 40KR, and the sensing displacement electrode line 45TR is explicitly set. Without passing through, the sensing electrode wire 33SR may be formed by the displacement of the reference bent portion 40Q in the sensing reference electrode wire 40KR and the change in the shape of the bent portion.

[Configuration of drive electrode group]
With reference to FIG. 19, the configuration of the drive electrode line group 31DG of the second embodiment and a method for producing the same will be described.
As shown in FIG. 19, also in the drive electrode line 31DR, the position of the virtual intersection point 31KP in the first electrode direction D1 with respect to the plurality of virtual intersection points 31KP located on one side in the first electrode direction D1 with respect to the drive electrode line 31DR. Changes irregularly with respect to the order in which the virtual intersections 31KP are arranged on one side in the first electrode direction D1. Similarly, for the plurality of virtual intersections 31KP located on the other side of the first electrode direction D1 with respect to the drive electrode line 31DR, the position of the virtual intersection 31KP in the first electrode direction D1 is the other of the first electrode direction D1. The order of the virtual intersections 31KP on the side changes irregularly.

  In such a configuration, the length of the inclined portion 31E and the absolute value of the inclination of the inclined portion 31E with respect to the base axis A2 are the values of the plurality of inclined portions 31E arranged along the second electrode direction D2 in one drive electrode line 31DR. In the meantime, it changes irregularly with respect to the order of arrangement of the inclined portions 31E. In addition, in one drive electrode line 31DR, each of the adjacent angle γd, the bending angle αd, and the bending period Wd is not constant, and in the plurality of drive electrode lines 31DR, the electrode line spacing between adjacent drive electrode lines 31DR Pd is not constant.

  The inter-intersection distance Td is the maximum length along the second electrode direction D2 between the two virtual intersections 31KP adjacent to each other along the drive electrode line 31DR. The bending width Hd is between the virtual intersection 31KP located on one side in the first electrode direction D1 and the virtual intersection 31KP located on the other side in the first electrode direction D1 with respect to the drive electrode line 31DR. It is the maximum length along the first electrode direction D1.

  Similarly to the sensing electrode line 33SR, the drive electrode line 31DR also irregularly displaces the position of the reference bent portion 41Q in the drive reference electrode line 41KR, which is a virtual electrode line having a periodic broken line shape, It is obtained by changing the shape in the vicinity of the bent portion 41Q to a shape in which the reference short line portion 41E is connected by a line segment of the relay length Ld. In FIG. 19, the drive reference electrode line 41KR is indicated by a thin line, and an example of the drive electrode line 31DR formed based on the drive reference electrode line 41KR is indicated by a thick line.

  The pattern composed of the plurality of drive reference electrode lines 41KR is a pattern obtained by rotating the pattern composed of the plurality of sensing reference electrode lines 40KR by 90 degrees. That is, the drive reference electrode line 41KR has a polygonal line shape in which a plurality of reference short line portions 41E are connected via the reference bent portion 41Q and extend along the second electrode direction D2. The reference bent portion 41Q includes a first virtual bent portion and a second virtual bent portion, and the first virtual bent portion and the second virtual bent portion are periodically arranged one by one along the drive reference electrode line 41KR. The plurality of first virtual bent portions and the plurality of second virtual bent portions are alternately arranged and located on separate straight lines extending along the second electrode direction D2.

  An angle formed by two reference short line portions 41E adjacent to each other is a reference angle Kαd, and a length between reference bending portions 41Q adjacent to each other along the second electrode direction D2 is a reference period KWd. The length along the second electrode direction D2 between the reference bending portions 41Q adjacent along the drive reference electrode line 41KR is the reference intersection distance KTd, and the reference bending portion adjacent along the drive reference electrode line 41KR. The length along the first electrode direction D1 between 41Q is the reference width KHd. The plurality of drive reference electrode lines 41KR are arranged at a reference interval KPd along the first electrode direction D1. The reference angle Kαd, the reference period KWd, the reference intersection distance KTd, the reference width KHd, and the reference interval KPd are respectively the reference angle Kαs, the reference period KWs, and the reference intersection distance KTs of the sensing reference electrode line 40KR in the first embodiment. The reference width KHs and the reference interval KPs are preferably set so as to satisfy the same conditions as those described above.

  That is, each parameter of the reference angle Kαd, the reference period KWd, the reference intersection distance KTd, the reference width KHd, and the reference interval KPd overlaps the pattern composed of the plurality of drive reference electrode lines 41KR and the pixel pattern of the display panel 10. Is preferably set to a value that suppresses the occurrence of moire. The reference angle Kαd is preferably 95 degrees or more and 150 degrees or less, and more preferably 100 degrees or more and 140 degrees or less. The reference interval KPd is preferably set in the range of 10% to 600% of the first pixel width P1 and the second pixel width P2 in the display panel 10. The reference width KHd is preferably set in a range where the ratio (KHd / KPd) of the reference width KHd to the reference interval KPd is 0.7 or more and 1.3 or less.

  The position of the reference bent portion 41Q is moved within the rhombic displacement region Sd centered on the reference bent portion 41Q. The displacement region Sd has a rhombus shape having a reference direction diagonal line Nd1 that is a diagonal line extending along the second electrode direction D2 and a cross direction diagonal line Nd2 that is a diagonal line extending along the first electrode direction D1. The length of the reference direction diagonal line Nd1 is the length dd1, and the length dd1 is preferably set in a range of more than 0 times and less than 0.5 times the reference period KWd. The length of the crossing direction diagonal line Nd2 is the length dd2, and the length dd2 is preferably set in the range of more than 0 and less than or equal to 1.0 times the reference interval KPd.

  The length dd1 of the reference direction diagonal Nd1 may be the same as or different from the length ds1 of the reference direction diagonal Ns1 in the sensing reference electrode line 40KR. Further, the length dd2 of the cross direction diagonal Nd2 may be the same as or different from the length ds2 of the cross direction diagonal Ns2 in the sensing reference electrode line 40KR.

  The position of each reference bending portion 41Q in the drive reference electrode line 41KR is moved irregularly with respect to the arrangement order of the reference bending portions 41Q along the second electrode direction D2 within the displacement region Sd for each reference bending portion 41Q. Subsequently, the shape in the vicinity of the reference bent portion 40Q after being moved in the displacement region Sd is changed so as to be connected by the line segment of the relay length Ld. Thereby, the drive electrode line 31DR is created. The position of the reference bent portion 40Q after being moved in the displacement area Sd corresponds to the position of the virtual intersection 31KP in the drive electrode line 31DR.

  The reference angle Kαd, the reference period KWd, and the reference interval KPd of the drive reference electrode line 41KR are the same as the bending angle αd, the bending period Wd, and the electrode line interval Pd in most of the drive electrode line 31DR. In addition, each of the reference intersection distance KTd and the reference width KHd does not match the distance between the intersections Td and the bending width Hd. The relay length Ld of the relay portion 31Q of the drive electrode line 31DR is preferably 0.2 times or less the reference intersection distance KTd of the drive reference electrode line 41KR, and 0 of the inter-intersection distance Td of the drive electrode line 31DR. It is preferable that the length is twice or less.

  As described above, in the second embodiment, the pattern of the sensing electrode line 33SR is created based on the pattern in which the periodicity of the pattern of the sensing reference electrode line 40KR is broken, and the pattern of the drive electrode line 31DR is the drive It is created based on a pattern in which the periodicity of the pattern of the reference electrode line 41KR is broken. That is, the periodicity of the pattern of the sensing electrode line 33SR in the second embodiment is lower than the periodicity of the pattern of the sensing electrode line 33SR in the first embodiment, and the periodicity of the pattern of the drive electrode line 31DR in the second embodiment. Is lower than the periodicity of the pattern of the drive electrode line 31DR of the first embodiment.

  Thus, compared with 1st Embodiment, the periodicity of the electrode line pattern of 2nd Embodiment, ie, the periodicity of the presence or absence of the structure in each of 1st electrode direction D1 and 2nd electrode direction D2, is low. Therefore, when such an electrode line pattern is used, a shift between the pixel pattern and the electrode line pattern is not easily recognized as a shift between the two periodic structures. Therefore, when the electrode line pattern of this embodiment is overlapped with the pixel pattern of the display panel 10, it is further suppressed that the moire is visually recognized. For example, even when the touch panel 20 having the electrode line pattern of the second embodiment is overlapped with a plurality of display panels 10 having different sizes and resolutions, moire can be visually recognized on each display panel 10. It can be suppressed.

  In the second embodiment, the plurality of relay portions 33Q in the plurality of sensing electrode lines 33SR may include a relay portion 33Q extending in a direction inclined with respect to the first electrode direction D1. In addition, the plurality of relay portions 33Q in one sensing electrode line 33SR may include a relay portion 33Q extending in a direction inclined with respect to the first electrode direction D1. For example, as shown in FIG. 20, when the absolute values of the inclination angles of the two inclined portions 33E connected to the relay portion 33Q with respect to the first electrode direction D1 are different, the relay portion 33Q is different from the relay portion 33Q in the first electrode direction. Compared with the case of extending in the direction along D1, the difference between the adjacent angle γs between the one inclined portion 33E and the adjacent angle γs between the other inclined portion 33E is reduced. You may incline with respect to 1 electrode direction D1. According to such a configuration, the variation of the adjacent angle γs in the sensing electrode line 33SR can be suppressed, and the minimum value of the adjacent angle γs can be increased. Therefore, it is easier to form a corner portion in the sensing electrode line 33SR, and the line of the electrode line Local expansion of the width is further suppressed.

  Similarly, the relay portions 31Q extending in the direction inclined with respect to the second electrode direction D2 may be included in the plurality of drive electrode lines 31DR and the plurality of relay portions 31Q in one drive electrode line 31DR. Each of the absolute value of the inclination angle of the relay portion 33Q with respect to the first electrode direction D1 and the absolute value of the inclination angle of the relay portion 31Q with respect to the second electrode direction D2 may be, for example, 10 ° or less. .

  Further, the relay portions 33Q having different relay lengths Ls may be included in the plurality of relay portions 33Q in the plurality of sensing electrode lines 33SR or one sensing electrode line 33SR. Similarly, the relay portions 33Q having different relay lengths Ld may be included in the plurality of relay electrode portions 31Q in the plurality of drive electrode lines 31DR or one drive electrode line 31DR.

  In the second embodiment, each of the virtual intersection 33KP located on one side of the second electrode direction D2 and the virtual intersection 33KP located on the other side of the second electrode direction D2 with respect to the sensing electrode line 33SR This is a virtual displacement intersection where the position in the two-electrode direction D2 changes irregularly. Further, each of the virtual intersection 31KP located on one side of the first electrode direction D1 and the virtual intersection 31KP located on the other side of the first electrode direction D1 with respect to the drive electrode line 31DR in the first electrode direction D1 It is a displacement virtual intersection whose position changes irregularly.

As described above, according to the second embodiment, the effects listed below can be obtained in addition to the effect (1) of the first embodiment.
(5) On each of one side and the other side of the second electrode direction D2 with respect to the sensing electrode line 33SR, the position of the virtual intersection 33KP in the second electrode direction D2 changes irregularly with respect to the order in which the virtual intersections 33KP are arranged. doing. Similarly, on each of one side and the other side of the first electrode direction D1 with respect to the drive electrode line 31DR, the position of the virtual intersection 31KP in the first electrode direction D1 changes irregularly with respect to the order in which the virtual intersections 31KP are arranged. doing. According to such a configuration, since the electrode line pattern formed by the plurality of sensing electrode lines 33SR and the plurality of drive electrode lines 31DR includes a bent line that bends irregularly, the electrode line pattern formed by regular bent lines. Compared with, the periodicity of the electrode line pattern is low. As a result, since the shift between the pixel pattern and the electrode line pattern is not easily recognized as a shift between the two periodic structures, it is further suppressed that the moire is visually recognized when the pixel pattern and the electrode line pattern are overlapped. It is done.

  (6) The sensing electrode line 33SR is configured such that each of the plurality of virtual intersections 33KP is located in each of the different displacement regions Ss centered on the reference bending portion 40Q of the sensing reference electrode line 40KR. The length ds1 of the reference direction diagonal line Ns1 in the displacement region Ss is 0.5 times or less of the reference period KWs, and the length ds2 of the cross direction diagonal line Ns2 is 1.0 times or less of the reference interval KPs. Is the length of Similarly, the drive electrode line 31DR is configured such that each of the plurality of virtual intersection points 31KP is located in each of the different displacement regions Sd centered on the reference bent portion 41Q of the drive reference electrode line 41KR. The length dd1 of the reference direction diagonal Nd1 in the displacement region Sd is 0.5 times or less of the reference period KWd, and the length dd2 of the cross direction diagonal Nd2 is 1.0 times or less of the reference interval KPd. Is the length of According to such a configuration, the pattern of the sensing electrode line 33SR and the drive electrode line 31DR can be prevented from becoming excessively irregular, and for example, the adjacent sensing electrode lines 33SR can be prevented from crossing or contacting each other. .

(Modification of the second embodiment)
The second embodiment can be implemented with the following modifications.
In the above embodiment, after the sensing electrode line 33SR and the drive electrode line 31DR are irregularly displaced at the positions of the reference bent portions 40Q and 41Q in the reference electrode lines 40KR and 41KR, the vicinity of the reference bent portions 40Q and 41Q The shape was created by changing the reference short line portions 40E and 41E to be connected by the relay portions 33Q and 31Q. Not limited to this, if the sensing electrode line 33SR and the drive electrode line 31DR in which the positions of the virtual intersections 33KP and 31KP change irregularly with respect to the order in which the virtual intersections 33KP and 31KP are arranged can be created, these electrode lines 33SR , 31DR may be created differently from the above embodiment. For example, the sensing electrode line 33SR and the drive electrode line 31DR are configured so that the positions of the relay parts 33Q and 31Q in the sensing electrode line 33SR and the drive electrode line 31DR of the first embodiment are not relative to the order in which the relay parts 33Q and 31Q are arranged. It may be created by displacing into a rule.

  In the sensing electrode line 33SR, the position of the virtual intersection 33KP in the second electrode direction D2 is irregular with respect to the order in which the virtual intersections 33KP are arranged on at least one side of the second electrode direction D2 with respect to the sensing electrode line 33SR. It only has to be changed. For example, the virtual intersection 33KP may be located on one straight line extending along the first electrode direction D1 on either side of the second electrode direction D2 with respect to the sensing electrode line 33SR. Similarly, in the drive electrode line 31DR, the position of the virtual intersection point 31KP in the first electrode direction D1 is at least one side of the first electrode direction D1 with respect to the drive electrode line 31DR with respect to the order in which the virtual intersection points 31KP are arranged. It only has to change irregularly. In such a case, the virtual intersections 33KP and 31KP arranged irregularly are the displacement virtual intersections.

  The virtual intersections may be irregularly arranged only in any one of the pattern constituted by the plurality of sensing electrode lines 33SR and the pattern constituted by the plurality of drive electrode lines 31DR. Further, the virtual intersections 33KP may be irregularly arranged in only a part of the plurality of sensing electrode lines 33SR or only in a part of the one sensing electrode line 33SR, or one of the plurality of drive electrode lines 31DR. The virtual intersection points 31KP may be irregularly arranged only in a part or only in a part of one drive electrode line 31DR. Even with such a configuration, since the periodicity of the electrode line pattern is lower than that of the electrode line pattern in which all the virtual intersections 33KP and 31KP are regularly arranged, the effect according to the above (5) can be obtained.

(Other variations)
The first embodiment, the second embodiment, and the modifications of these embodiments can be implemented with the following modifications.
When the sensing electrode line 33SR and the drive electrode line 31DR are overlapped, the first electrode direction D1 that is the direction in which the sensing electrode line 33SR extends and the second electrode direction D2 that is the direction in which the drive electrode line 31DR extends are orthogonal to each other. It is not necessary that these directions intersect. That is, the first direction, which is the direction in which one electrode line extends, and the second direction, which is the direction in which the other electrode line extends, do not have to be orthogonal.

  In the configuration in which the first direction and the second direction are orthogonal to each other, an electrode line pattern in which the sensing electrode line 33SR and the drive electrode line 31DR are superimposed can be easily obtained, and when the conductive film 21 is manufactured, sensing is performed. Positioning of electrode line 33SR and drive electrode line 31DR is easy.

  Further, the direction in which the sensing electrode line 33SR extends and the direction in which the sensing electrode line 33SR are arranged do not have to be orthogonal to each other, and these directions only need to intersect. Similarly, the direction in which drive electrode line 31DR extends and the direction in which drive electrode line 31DR is arranged do not have to be orthogonal to each other, and these directions only need to intersect. That is, the first direction, which is the direction in which one electrode line extends, and the first intersecting direction, in which the one electrode line is arranged, need only intersect with each other, and the first direction in which the other electrode line extends. The two directions and the second intersecting direction, which is the direction in which the other electrode lines are arranged, only need to intersect each other.

  In the above embodiment, the first direction and the second intersecting direction are the same direction, and the second direction and the first intersecting direction are the same direction, but all of these directions are different from each other. There may be.

  -Only one of the pattern composed of the plurality of sensing electrode lines 33SR and the pattern composed of the plurality of drive electrode lines 31DR is from the bent line-shaped electrode line composed of the inclined portion and the relay portion. It may be a pattern. Further, the pattern constituted by the plurality of sensing electrode lines 33SR and the pattern constituted by the plurality of drive electrode lines 31DR include a bent portion having a shape different from the shape constituted by the inclined portion and the relay portion. May be. For example, in the second embodiment, after the reference bent portions 40Q and 41Q of the reference electrode lines 40KR and 41KR are displaced, the angles formed by the two reference short line portions 40E and 41E connected by the reference bent portions 40Q and 41Q are relatively The sensing electrode line 33SR and the drive electrode line 31DR may be created by changing the shape of the electrode lines so as to be connected by the relay portions 33Q and 31Q only in the vicinity of the extremely small reference bent portions 40Q and 41Q. That is, the bent portion may be formed of an inclined portion and a relay portion at a location where the local line width of the electrode line is particularly likely to increase. Even with such a configuration, the local line width of the electrode line can be increased as compared with the case where the shape of the electrode line is a polygonal line shape passing through the inclined portions 33E and 31E and the virtual intersections 33KP and 31KP over the whole. It can be suppressed.

  In addition, for example, each of the sensing electrode line 33SR and the drive electrode line 31DR may have a bent line shape including an inclined portion and a relay portion at least in a portion arranged in a region where moire is desired to be suppressed. .

  As shown in FIG. 21, the transparent substrate 31 and the transparent adhesive layer 32 may be omitted from the conductive film 21 constituting the touch panel 20. In such a configuration, the back surface facing the display panel 10 is set as the drive electrode surface 31S in the surface of the transparent dielectric substrate 33, and the drive electrode 31DP is located on the drive electrode surface 31S. And the surface which is a surface on the opposite side to the back surface in the transparent dielectric substrate 33 is the sensing electrode surface 33S, and sensing electrode 33SP is located in the sensing electrode surface 33S. In such a configuration, the drive electrode 31DP is formed, for example, by patterning one thin film formed on one surface of the transparent dielectric substrate 33 by etching, and the sensing electrode 33SP is, for example, a transparent dielectric One thin film formed on the other surface of the body substrate 33 is formed by patterning by etching.

  In the configuration in which the sensing electrode line group 33SG and the drive electrode line group 31DG are formed on different base materials as in the above embodiments, the electrode lines are formed on both surfaces of one base material. Compared to the configuration, it is easier to form the electrode lines.

  As shown in FIG. 22, in the touch panel 20, the drive electrode 31 DP, the transparent substrate 31, the transparent adhesive layer 32, the transparent dielectric substrate 33, the sensing electrode 33 SP, and the transparent adhesive layer 23 in order from the components close to the display panel 10. The cover layer 22 may be located.

  In such a configuration, for example, the drive electrode 31DP is formed on one surface serving as the drive electrode surface 31S of the transparent substrate 31, and the sensing electrode 33SP is formed on one surface serving as the sensing electrode surface 33S of the transparent dielectric substrate 33. Is done. Then, the surface of the transparent substrate 31 opposite to the drive electrode surface 31S and the surface of the transparent dielectric substrate 33 opposite to the sensing electrode surface 33S are bonded by the transparent adhesive layer 32. In this case, the transparent substrate 31, the transparent adhesive layer 32, and the transparent dielectric substrate 33 constitute a transparent dielectric layer, and the drive electrode surface 31S of the transparent substrate 31 is one of the first surface and the second surface. The sensing electrode surface 33S of the transparent dielectric substrate 33 is the other of the first surface and the second surface.

  The display panel 10 and the touch panel 20 may not be formed separately, and the touch panel 20 may be formed integrally with the display panel 10. In such a configuration, for example, in the in-cell type, in the conductive film 21, the plurality of drive electrodes 31 DP are positioned on the TFT layer 13, while the plurality of sensing electrodes 33 SP are positioned between the color filter substrate 16 and the upper polarizing plate 17. It can be set as this structure. Alternatively, an on-cell configuration in which the conductive film 21 is located between the color filter substrate 16 and the upper polarizing plate 17 may be used. In such a configuration, the layer sandwiched between the drive electrode 31DP and the sensing electrode 33SP constitutes a transparent dielectric layer.

  A1, A2 ... Base axis, K1, K2 ... Virtual line, D1 ... First electrode direction, D2 ... Second electrode direction, ND ... Capacitance detector, Ss, Sd ... Displacement region, Ns1, Nd1 ... Reference direction diagonal, Ns2 , Nd2 ... cross direction diagonal line, KPs, KPd ... reference interval, KHs, KHd ... reference width, KWs, KWd ... reference period, KTs, KTd ... reference intersection distance, Kαs, Kαd ... reference angle, Ps, Pd ... electrode line interval , Hs, Hd: bending width, Ws, Wd: bending period, Ts, Td: distance between intersections, αs, αd: bending angle, Ls, Ld: relay length, 10: display panel, 11: lower polarizing plate, 12 Thin film transistor substrate, 13 TFT layer, 14 Liquid crystal layer, 15 Color filter layer, 15P Pixel, 16 Color filter substrate, 17 Upper polarizing plate, 20 Touch panel, 21 Conductive film, 2 ... Cover layer, 23 ... Transparent adhesive layer, 31 ... Transparent substrate, 31DP ... Drive electrode, 31DR ... Drive electrode line, 31DG ... Drive electrode line group, 31S ... Drive electrode surface, 31E ... Inclined part, 31Q ... Relay part, 31KP ... virtual intersection, 33 ... transparent dielectric substrate, 33SP ... sensing electrode, 33SR ... sensing electrode wire, 33SG ... sensing electrode wire group, 33S ... sensing electrode surface, 33E ... inclined part, 33Q ... relay part, 33KP ... virtual intersection, 34 ... selection circuit, 35 ... detection circuit, 36 ... control unit, 40KR ... sensing reference electrode wire, 41KR ... drive reference electrode wire, 40E, 41E ... reference short wire portion, 40Q, 41Q ... reference bending portion, 100 ... display device.

Claims (11)

A transparent dielectric layer having a first surface and a second surface opposite to the first surface;
A plurality of electrode lines extending along a first direction on the first surface of the transparent dielectric layer and arranged along a first intersecting direction intersecting the first direction;
A plurality of electrode lines extending along a second direction intersecting the first direction on the second surface of the transparent dielectric layer and arranged along a second intersecting direction intersecting the second direction;
With
The plurality of electrode lines located on the first surface includes a first electrode line having a bent line shape,
The first electrode line includes a plurality of first inclined portions having a linear shape extending from the proximal end toward the distal end along the first electrode line in a direction inclined with respect to the first direction; A plurality of first relay portions having a straight line connecting one distal end and the other proximal end with respect to the two first inclined portions adjacent to each other in the direction;
The first inclined portion and the first relay portion are alternately arranged along the first electrode line, and an angle formed between the first inclined portion and the first relay portion adjacent to each other is an obtuse angle. the film. The conductive film according to claim 1, wherein the first relay portion extends along the first direction. The intersection of the extension lines of the two first inclined portions connected to both ends of the first relay portion is a virtual intersection, and the first between the two virtual intersections adjacent to each other along the first electrode line. The maximum length along the direction is the distance between intersections,
The conductive film according to claim 1, wherein a length of the first relay portion is 0.2 times or less of a distance between the intersections. The intersection of the extension lines of each of the two first inclined portions connected to both ends of the first relay portion is a virtual intersection, and a plurality of points located on one side of the first intersection direction with respect to the first electrode line The virtual intersection and the plurality of virtual intersections located on the other side of the first crossing direction with respect to the first electrode line are located on separate straight lines extending in the first direction, and between these straight lines The length along the first intersecting direction is the bending width,
The plurality of electrode lines located on the first surface includes a plurality of the first electrode lines arranged at a predetermined interval along the first intersecting direction with a predetermined interval between the electrode lines.
The ratio of the said bending width with respect to the said electrode wire space | interval is 0.7 or more and 1.3 or less. The electroconductive film as described in any one of Claims 1-3. The intersection of the extension lines of each of the two first inclined portions connected to both ends of the first relay portion is a virtual intersection,
Each of the plurality of virtual intersections located on one side of the first intersection direction with respect to the first electrode line is a displacement virtual intersection, and the position of the displacement virtual intersection in the first intersection direction is the first intersection The conductive film according to claim 1, wherein the first electrode line is configured to change irregularly with respect to the order in which the displacement virtual intersections are arranged on one side in the intersecting direction. It has a plurality of first virtual bent portions and a plurality of second virtual bent portions, has a polygonal line shape extending along the first direction, and is arranged at a predetermined interval in the first intersecting direction. Each of the plurality of virtual electrode lines is a reference electrode line,
The first virtual bent portion and the second virtual bent portion are alternately arranged one by one periodically along the reference electrode line, and the plurality of first virtual bent portions and the plurality of second virtual bent portions are arranged. The part is located on a separate straight line extending in the first direction,
At least one of the first virtual bent portion and the second virtual bent portion is a reference bent portion, and a distance between two reference bent portions adjacent in the first direction on the reference electrode line is a reference period. ,
Centering on the reference bent portion, the diagonal extends in the first direction with a length of 0.5 times or less of the reference period, and extends in the first intersecting direction with a length of the reference interval or less. A diamond-shaped virtual region having a diagonal line is a displacement region,
The conductive film according to claim 5, wherein the first electrode line is configured such that each of the plurality of displacement virtual intersections is located in each of the different displacement regions. The plurality of electrode lines located on the second surface includes a second electrode line having a bent line shape,
The second electrode line includes a plurality of second inclined portions having a linear shape extending from the proximal end toward the distal end along the second electrode line in a direction inclined with respect to the second direction; A plurality of second relay portions having a straight line connecting one distal end and the other proximal end to the two second inclined portions adjacent to each other in the direction;
The second inclined part and the second relay part are alternately arranged along the second electrode line, and an angle formed between the second inclined part and the second relay part adjacent to each other is an obtuse angle. The electroconductive film as described in any one of 1-6. The plurality of electrode lines positioned on the first surface and the plurality of electrode lines positioned on the second surface are disposed on different base materials from each other. Sex film. The conductive film according to claim 1, wherein the first direction and the second direction are orthogonal to each other. The conductive film according to any one of claims 1 to 9,
A cover layer covering the conductive film;
A peripheral circuit that measures a capacitance between an electrode line disposed on the first surface and an electrode line disposed on the second surface. A display panel having a plurality of pixels arranged in a grid and displaying information;
A touch panel that transmits the information displayed on the display panel;
A control unit for controlling the drive of the touch panel,
The said touch panel is a touch panel of Claim 10. A display apparatus.