JP2017103317A - Printed wiring, touch panel, electronic device, method of producing printed wiring, and method of producing touch panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed wiring in which a doctor blade does not fall into a recess of a gravure plate by gravure printing so that a wiring pattern can be favorably gravure printed.SOLUTION: In a printed wiring formed of a film of a conductive ink cured on a base material, a wiring pattern which is extended in a specific direction on a surface of the base material and is not formed of a thin line mesh is represented by a wavy line. The specific direction may be two directions orthogonal to each other on the surface and may be a single direction on the surface.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a printed wiring, an electronic device including the printed wiring, a touch panel on which a conductor layer is formed by printing, and further relates to a printed wiring production method and a touch panel production method.

  In recent years, printing methods that are excellent in productivity and advantageous in terms of manufacturing cost have been used for forming electrode patterns and wiring patterns of various electronic devices such as touch panels, membrane switches, and liquid crystal displays. In particular, gravure offset printing is attracting attention as being suitable for forming fine patterns.

  In gravure offset printing, a gravure plate with recesses corresponding to the desired printing pattern, a doctor blade that fills the recesses of the gravure plate with ink, and a blanket that rotates while in contact with the gravure plate and receives ink are used. It is done. The ink transferred to the blanket is transferred to the printing object, whereby a desired printing pattern is printed on the printing object.

  The blade of the doctor blade is pressed against the gravure plate with the required pressure and slides relative to the gravure plate, filling the gravure plate with ink and scraping off excess ink on the surface of the gravure plate (squeezing). For example, if the direction in which the concave portion of the printing pattern formed on the gravure plate extends and the direction of the doctor blade (arrangement direction) match, the tip of the doctor blade falls into the concave portion. Can occur.

  When such a drop in the doctor blade occurs, scratches or a part of the ink in the recesses are scraped off, which causes printing defects such as untransferred and defective shapes.

  Patent Document 1 describes a method (inking method) for avoiding a printing defect caused by such a drop in the doctor blade. FIG. 8 and FIG. 9 show the inking state described in Patent Document 1 and the apparatus configuration used for the inking.

  In FIG. 9, 11 is a base, 12 is a linear guide, 13 is a moving table that can travel (reciprocate) along the linear guide 12, and an angle can be changed (turned) in a horizontal plane on the moving table 13. An alignment mechanism 14 is provided, and a plate fixing stage 15 is provided thereon. The plate fixing stage 15 is configured to hold a flat plate (gravure plate) 16. When the plate 16 moves along with the travel along the linear guide 12 of the moving table 13, the plate surface of the plate 16 is brought into contact with a blade (doctor blade) 17 extending in the horizontal direction perpendicular to the longitudinal direction of the linear guide 12 from above. On the other hand, the blade 17 is slid relatively to perform inking.

  In Patent Document 1, when inking, first, a divided area is set by dividing the printing pattern 18 of the plate 16 into a plurality of parts in the moving direction (X direction) of the moving table 13 during inking. In FIG. 8, divided areas 18a and 18b divided into two are set, and the main groove pattern directions (directions in which the angles of the plate grooves coincide most) 19a, for the plate grooves provided in the divided areas 18a and 18b, respectively. 19b is calculated for each of the divided regions 18a and 18b based on data such as the groove angle (direction in which the plate groove extends), the number of grooves, and the groove width.

  When the blade 17 is slid and inked, as shown in FIG. 8A, when the blade 17 is in contact with the divided region 18a, the main groove pattern direction 19a is at an angle larger than 0 degrees with the longitudinal direction of the blade 17. The plate 16 is rotated together with the plate fixing stage 15 by the alignment mechanism 14 so as to be arranged. As a result, the blade 17 slides at an angular posture in which the longitudinal direction of the blade 17 is deviated from the main groove pattern direction 19a, so that the tip of the blade 17 can be prevented from being caught in the plate groove.

  When the blade 17 comes into contact with the divided region 18b as the moving table 13 travels, alignment is performed so that the main groove pattern direction 19b is arranged at an angle greater than 0 degrees with the longitudinal direction of the blade 17 as described above. The plate 16 is rotated by the mechanism 14. Thereby, similarly to the above, it is possible to avoid the tip of the blade 17 from being caught in the plate groove.

  As described above, in Patent Document 1, the printing pattern of the plate is divided into a plurality of divided areas in the direction of relative movement with the blade at the time of inking, and the main groove pattern direction is obtained for each divided area. By rotating the plate and the blade relatively so that the main groove pattern direction obtained for the divided area where the blade is in contact with the blade and the divided area where the blade is in contact with each other at an angle larger than 0 degrees when performing The blade tip can be prevented from falling into the plate groove and caught, thereby preventing the occurrence of printing defects.

Japanese Patent No. 5347990

  By the way, in the inking method as described in Patent Document 1 described above, a troublesome operation of dividing a gravure printing pattern and obtaining a main groove pattern direction for each divided region is necessary. This printing apparatus cannot be used as it is, and it is necessary to prepare a new printing apparatus having an alignment mechanism. In addition, there is a problem that it cannot be applied to roll-type gravure offset printing.

  Furthermore, since the blade does not become parallel to the main groove pattern direction of the gravure plate, the parallel relationship between the blade and the groove pattern is not completely eliminated, and therefore the blade is not dropped or caught completely. It cannot be avoided.

  In view of such a situation, an object of the present invention is to provide a printed wiring, a printed wiring production method, and a printed wiring capable of printing a wiring pattern satisfactorily without causing a printing defect by gravure printing. Another object of the present invention is to provide a touch panel and a touch panel production method in which a conductor layer can be satisfactorily formed without causing printing failure by gravure printing.

According to invention of Claim 1, the printed wiring formed by the wiring pattern which consists of the film | membrane of the conductive ink hardened | cured on the base material is a fine wire mesh extended in the specific direction on the surface of a base material. The wiring pattern that is not formed is assumed to be composed of wavy lines.
According to a second aspect of the present invention, in the first aspect of the invention, the specific direction is two directions perpendicular to each other on the surface.
In the invention of claim 3, in the invention of claim 1, the specific direction is a single direction on the surface.

  According to the invention of claim 4, in the invention of any one of claims 1 to 3, the wavy line is cut at the apex of the folded portion protruding in at least one of the two directions in the orthogonal direction to the extension direction. It is assumed that a notch is provided.

  According to a fifth aspect of the present invention, an electronic device includes the printed wiring according to the first to fourth aspects.

  A sixth aspect of the invention is a method for producing a printed wiring according to the first aspect of the invention, wherein a gravure plate having a concave portion defining a wiring pattern is parallel to one direction coinciding with the specific direction. The printed wiring is printed by gravure printing having a step of filling the conductive ink by squeezing the conductive ink in a direction orthogonal to the doctor blade by the installed doctor blade.

  A seventh aspect of the invention is a method for producing a printed wiring according to the fourth aspect of the invention, wherein a gravure plate having a recess that defines a wiring pattern is parallel to one direction that coincides with the specific direction. A gravure having a step of filling conductive ink with an installed doctor blade by squeezing in a direction in which the apex of the folded portion provided with the notch out of two directions in a direction orthogonal to the doctor blade is projected Print the printed wiring by printing.

  According to the invention of claim 8, it is configured to include a conductor layer made of a cured conductive ink film and having a sensor electrode array arranged in a rectangular sensor region and a lead-out wiring led out from the sensor electrode array. The touch panel is formed of a fine line mesh composed of line segments obliquely intersecting both the short side and the long side of the rectangle, and is extended in parallel to the short side of the lead-out wiring. At least one of the short side parallel part and the long side parallel part extending in parallel with the long side, the wiring not formed by the fine line mesh is configured by wavy lines.

  In the invention of claim 9, in the invention of claim 8, the wavy line has a notch at the apex of the folded portion protruding in at least one of two directions in the direction orthogonal to the extension direction. It is said.

  A tenth aspect of the invention is a method for producing the touch panel according to the eighth aspect of the invention, wherein the gravure plate having a recess defining the pattern of the conductor layer is parallel to one direction corresponding to the extending direction of the wavy line. The conductor layer is printed by gravure printing having a step of filling the conductive ink by squeezing the conductive ink in a direction perpendicular to the doctor blade by the doctor blade installed in this manner.

  The invention of claim 11 is a method for producing the touch panel according to claim 9, wherein the gravure plate having a recess defining the pattern of the conductor layer is parallel to one direction coinciding with the extending direction of the wavy line. A gravure having a step of filling the conductive ink by squeezing in a direction in which the apex of the folded portion having the notch out of two directions in a direction orthogonal to the doctor blade is projected by the doctor blade installed The conductor layer is printed by printing.

  According to the printed wiring, the printed wiring production method, and the electronic device including the printed wiring according to the present invention, the wiring pattern is satisfactorily gravure-printed without causing a printing defect due to the drop of the doctor blade into the concave portion of the gravure plate. be able to.

  In addition, according to the touch panel and the touch panel production method of the present invention, the conductor layer can be satisfactorily formed by gravure printing without causing printing failure due to the drop of the doctor blade into the concave portion of the gravure plate.

The schematic diagram for demonstrating the outline | summary of a roll-type gravure offset printing apparatus. The figure for demonstrating the structure outline | summary of the touchscreen which is the object of this invention. FIG. 3A is a partially enlarged view showing details of a first sensor electrode array of the touch panel shown in FIG. 2, and B is a partially enlarged view showing details of a second sensor electrode array of the touch panel shown in FIG. The elements on larger scale which show the 1st sensor electrode row | line | column and the extraction | drawer wiring pulled out from the 1st sensor electrode row | line | column in one Example of the touchscreen by this invention. The elements on larger scale which show the extraction wiring extracted from the 1st sensor electrode row | line | column in one Example of the touchscreen by this invention. FIG. 3A is a diagram illustrating a first example of a wavy shape of a wiring pattern, and FIG. 3B is a diagram for explaining ink tailing and bleeding. A is a diagram showing a second example of the wavy shape of the wiring pattern, B is a diagram showing a third example of the wavy shape of the wiring pattern, and C is a diagram showing a fourth example of the wavy shape of the wiring pattern. A is a plan view showing a state in which the blade is in contact with the first divided area of the print pattern in the conventional inking method in the gravure offset printing, and B is a second divided area of the print pattern after the state of A. The top view which shows the state which touches. The side view which shows the apparatus structure used for implementation of the conventional inking method in gravure offset printing.

  First, an outline of roll-type gravure offset printing applied to the present invention will be described.

  FIG. 1 shows a configuration of a gravure offset printing apparatus. Ink 24 is supplied to a cylindrical gravure plate 22 attached to a gravure cylinder 21 by a dispenser 23. The ink 24 is filled by the doctor blade 25 into the recess 22a that defines the printing pattern formed on the gravure plate 22, and the excess ink 24 is scraped by the doctor blade 25 so that the ink 24 is uniformly contained in the recess 22a. Be accustomed to. The ink 24 filled in the recess 22 a of the gravure plate 22 is attached to the blanket cylinder 26, and a blanket 27 that rotates while being pressed against the gravure plate 22 is pulled out and transferred onto the blanket 27. The ink 24 transferred onto the blanket 27. Is re-transferred (transferred) to the substrate (printing substrate) 28 that has been flown, and is printed.

  In this gravure offset printing, the present invention is capable of eliminating the printing failure caused by the drop of the doctor blade 25 into the recess 22a of the gravure plate 22 using the conventional gravure offset printing apparatus as it is. Yes, and will be described below with specific examples.

  FIG. 2 shows an outline of the configuration of a capacitive touch panel. In FIG. 2, 30 indicates a transparent substrate. The capacitive touch panel has a configuration in which, for example, a first conductor layer, an insulating layer, a second conductor layer, and a protective film are sequentially stacked on the transparent substrate 30.

  Although the detailed illustration of the sensor electrode array is omitted in FIG. 2, the sensor electrode array includes a plurality of first sensor electrode arrays and a plurality of second sensor electrode arrays, and the plurality of first sensor electrode arrays are the first conductors. The plurality of second sensor electrode arrays are formed by a second conductor layer that is insulated from the first conductor layer by an insulating layer. In FIG. 2, a portion surrounded by a rectangular frame indicates a sensor region 40 where the sensor electrode array is located.

  FIG. 3A shows details of the first sensor electrode array 51 formed by the first conductor layer, and FIG. 3B shows the second sensor electrode array 61 formed by the second conductor layer. Details are shown.

  The first sensor electrode array 51 includes a plurality of island electrodes 52 arranged in the X direction parallel to the long side 41 of the rectangular sensor region 40, and a connecting portion 53 that connects adjacent island electrodes 52. . A plurality of first sensor electrode arrays 51 are arranged in parallel in the Y direction parallel to the short side 42 of the rectangular sensor region 40. The second sensor electrode array 61 includes a plurality of island electrodes 62 arranged in the Y direction and a connecting portion 63 that connects adjacent island electrodes 62. A plurality of second sensor electrode rows 61 are arranged in parallel in the X direction. The first sensor electrode array 51 and the second sensor electrode array 61 intersect with each other while being insulated from each other, and the connecting portions 53 and 63 are positioned so as to overlap each other. As shown in FIGS. 3A and 3B, the first sensor electrode array 51 and the second sensor electrode array 61 are composed of line segments obliquely intersecting both the long side 41 and the short side 42 of the sensor region 40, It is formed of a fine line mesh that forms a large number of cellular voids, and the outer shape of the island-shaped electrodes 52 and 62 has a rhombus shape.

  The lead wires 71 and 72 and the terminal portion 73 shown in FIG. 2 are formed by the first conductor layer, and the ground wire 74 is formed by both the first and second conductor layers. The lead wiring 71 is led out from both ends of each first sensor electrode array 51 in the X direction, and the lead wiring 72 is led out from one end of each second sensor electrode array 61 in the Y direction. In FIG. 2, a plurality of lead wires 71 and 72 arranged in a plurality and led out from the sensor region 40 are only shown at both ends of the array, and those other than those at both ends are not shown.

  The terminal portion 73 is arranged and formed in the central portion of one long side of the transparent substrate 30 having a rectangular shape. The lead wires 71 and 72 extend to the terminal portion 73 and are connected to the terminal portion 73. The ground wiring 74 is formed on the periphery of the transparent substrate 30 so as to surround the sensor region 40 and the lead wirings 71 and 72. The ground wiring 74 is also connected to the terminal portion 73.

  Although the detailed illustration of the thick terminal portion 73 and the ground wiring 74 is omitted, like the first and second sensor electrode rows 51 and 61, it crosses both the long side 41 and the short side 42 of the sensor region 40. It is composed of a line segment and is formed of a fine line mesh including a large number of cellular voids in the extending direction and the width direction. The thin lead wires 71 and 72 are line-shaped (line-shaped) wires.

  When the first and second conductor layers having the above-described configuration are printed by the gravure offset printing apparatus shown in FIG. 1 using a conductive ink containing conductive particles such as silver, a pattern of the conductor layer is defined. The squeezing direction of the doctor blade with respect to the gravure plate having the concave portion is parallel to the long side 41 of the sensor region 40, that is, in the X direction parallel to the long side of the transparent substrate 30 or parallel to the short side 42 of the sensor region 40, One of the Y directions is parallel to the short side of the transparent substrate 30.

  Since the first and second sensor electrode rows 51 and 61, the terminal portion 73, and the ground wiring 74 are formed of a mesh that obliquely crosses both in the X direction and the Y direction, these first and second sensor electrode rows. The doctor blade does not fall into the concave portion of the gravure plate that defines the patterns of 51 and 61, the terminal portion 73 and the ground wiring 74. On the other hand, since the lead wires 71 and 72 are each composed of line segments extending in the X direction and the Y direction, the doctor blade may fall into the concave portion of the gravure plate that defines the pattern of the lead wires 71 and 72. Can do.

  In order to eliminate such a drop of the doctor blade in the concave portion of the gravure plate, in the present invention, the long side parallel portion extended in the X direction parallel to the long side 41 of the sensor region 40 of the lead wires 71 and 72 in the present invention. One of the short side parallel portions extending in the Y direction parallel to the short side 42 of the sensor region 40 is configured by a wavy line.

  As shown in FIG. 2, the lead-out wiring 71 has a long side parallel portion 71 a, a short side parallel portion 71 b, and a long side parallel from the connection portion with the first sensor electrode array 51 toward the connection portion with the terminal portion 73. It has a portion 71c and a short side parallel portion 71d, and the lead-out wiring 72 is directed from the connecting portion with the second sensor electrode array 61 toward the connecting portion with the terminal portion 73, and the short side parallel portion 72a and the long side parallel portion. It has the part 72b and the short side parallel part 72c. For these portions, in this example, the long short side parallel portion 71b of the lead-out wiring 71 is constituted by a wavy line.

  FIG. 4 shows in detail a state in which the short side parallel portions 71b of the lead wires 71 arranged in a large number are formed by wavy lines, and FIG. 5 shows the long side parallel portions from the short side parallel portions 71b of the lead wires 71. The transition part to the part 71c is shown in more detail. In this example, the short long side parallel portion 71a, which is the connecting portion of the lead wire 71 with the first sensor electrode row 51, is a mesh that crosses both the X direction and the Y direction as shown in FIG. It is formed with.

  As described above, in this example, the long short side parallel portion 71b of the lead-out wiring 71 is constituted by a wavy line. The long side parallel portion 72b of the lead wiring 72 is formed by a normal straight line. Although the short side parallel portion 71d of the other lead wiring 71 and the short short side parallel portions 72a and 72c of the lead wiring 72 are not shown in detail, in this example, similarly to the long side parallel portion 71a of the lead wiring 71, It is made of mesh.

  In this way, the short-side parallel portion 71b of the lead-out wiring 71 is configured by a wavy line, and the first conductor layer is printed by gravure offset printing. When printing, the conductive ink is applied to the gravure plate having the recesses defining the pattern of the first conductor layer so that it is parallel to the extending direction of the wavy line, that is, with the doctor blade installed in the Y direction. Filling is performed by squeezing in a direction orthogonal to the direction (X direction). Thereby, it is possible to prevent the doctor blade from dropping into the concave portion of the gravure plate, and it is possible to eliminate the occurrence of printing defects due to the doctor blade being dropped or caught.

  6A and 7A to 7C show various examples of wavy line shapes applied to the wiring pattern.

  The wiring pattern 100 forming the wavy line shown in FIG. 6A is a wave line made of a triangular wave. FIG. 6B shows a shape defect that may occur in the printed wiring pattern 100 when the wavy line is a triangular wave and the gravure offset printing is performed. In FIG. 6B, the arrow S indicates the squeezing direction of the doctor blade. Ink tailing with a may occur from the folded portion (corner) of the triangular wave located on the front side with respect to the squeezing direction, and ink bleeding with b may occur in the folded portion of the triangular wave. .

  When such tailing or bleeding of the ink becomes large, it comes into contact with the adjacent wiring pattern and causes a circuit failure, and therefore it becomes a factor that hinders the narrowing of the arrangement pitch of the wiring pattern.

  The wavy lines of the wiring patterns 110, 120, and 130 shown in FIGS. 7A to 7C are located on the front side with respect to the squeezing direction so as to reduce the risk of tailing and bleeding contacting the adjacent wiring patterns. A notch is formed at the apex of the folded portion of the triangular wave.

  The wiring pattern 110 shown in FIG. 7A has a V-shaped notch 111 formed in the folded portion. The wiring pattern 120 shown in FIG. 7B has the folded portion cut out in a straight line to form a notch 121. It has been done. In addition, the wiring pattern 130 shown in FIG. 7C has a W-shaped cutout 131 formed in the folded portion. If notches are provided in this way, even if ink tailing or bleeding occurs, their dimensions will be small, so the risk of contact with adjacent wiring patterns can be reduced. The pitch can be narrowed. The wiring patterns 110, 120, and 130 shown in FIGS. 7A to 7C are all cut out in a straight line at the folded portion that protrudes in the opposite direction to the folded portion where the notches 111, 121, and 131 are formed. 112, 122, and 132 are formed.

  The wavy shape of the wiring pattern is not limited to the triangular wave as described above, and may be a wavy shape made of a curve such as a sine wave, for example, and if it is short enough not to cause the doctor blade to drop, the extending direction of the wavy line For example, a wavy line shape such as a trapezoidal wave may be included.

  The wavy line shape shown in FIG. 7A is applied to the short side parallel portion 71b of the lead wire 71 of the touch panel shown in detail in FIGS.

  In the touch panel shown in FIG. 2, the long short side parallel portion 71 b of the lead wiring 71 parallel to the short side 42 of the sensor region 40 is configured by a wavy line. The long long side parallel part 71c of the parallel lead-out wiring 71 and the long long side parallel part 72b of the lead-out wiring 72 may be constituted by wavy lines, and either one of the short side parallel part or the long side parallel part is constituted by wavy lines. The In the case of gravure offset printing, the conductive ink is squeezed in a direction orthogonal to the extending direction of the wavy line by a doctor blade installed so as to be parallel to the extending direction of the wavy line. Moreover, when providing a notch as shown to FIG. 7A-C in the vertex of the folding | returning part which protrudes in the specific one direction of the two directions in the orthogonal direction with respect to the extension direction of a wavy line, when the specific one The conductive ink is squeezed with a doctor blade in the direction.

  As still another form, the long short side parallel portion 71b of the lead wire 71 parallel to the short side 42 of the sensor region 40 and the long long side parallel portion 71c of the lead wire 71 parallel to the long side 41 and the lead wire 72 All of the long long side parallel portions 72b may be configured by wavy lines so that good squeezing can be performed in both the direction parallel to the short side 42 and the direction parallel to the long side 41 of the sensor region 40.

  As yet another form, the notch of the folded portion of the wavy line shown in FIGS. 7A to 7C is formed at the apexes on both sides of the wavy line, and in either of two opposite directions. It may be possible to perform good squeezing. This is useful, for example, when thorough ink filling is performed by performing squeezing twice in total in both directions.

  As described above, the touch panel has been described as an example. In a printed wiring having a wiring pattern made of a conductive ink film cured on a substrate, the wiring pattern is extended in one or more specific directions on the surface of the substrate. In the gravure offset printing, all of the wiring patterns that are not formed by the fine line mesh, which are extended in one or more specific directions, are configured by the wavy lines. When printing a wiring pattern, the conductive ink is squeezed in a direction perpendicular to the direction of the doctor blade by a doctor blade installed so as to be parallel to one specific direction of one or more of the wiring patterns. This will prevent the doctor blade from falling into the concave part of the gravure plate. Drop in coater blades, it is possible to eliminate the occurrence of printing failure attributed to snag. Also, for example, when the external shape of the device that prints the wiring is a square, two orthogonal directions parallel to each side are set as specific directions, and further, when a notch is provided in the folded portion of the wavy line, it is provided at the apexes on both sides. In addition, it is possible to perform good squeezing even if it is installed in the printing machine in any direction along each side, or select one according to the situation when printing from multiple specific directions, etc. Is also possible. The present invention is directed to an electronic device such as a printed wiring that can eliminate the occurrence of printing defects and a touch panel that includes the printed wiring.

  The printing to be used is not limited to roll-type gravure offset printing, but may be flat-type gravure offset printing or gravure printing.

11 Base 12 Linear Guide 13 Moving Table 14 Alignment Mechanism 15 Plate Fixing Stage 16 Plate 17 Blade 18 Print Patterns 18a and 18b Divided Areas 19a and 19b Main Groove Pattern Direction 21 Gravure Cylinder 22 Gravure Plate 22a Recess 23 Dispenser 24 Ink 25 Doctor Blade 26 Blanket cylinder 27 Blanket 28 Base material 30 Transparent substrate 40 Sensor region 41 Long side 42 Short side 51 First sensor electrode row 52 Island-like electrode 53 Connection portion 61 Second sensor electrode row 62 Island-like electrode 63 Connection portion 71 Lead-out wiring 71a, 71c Long side parallel part 71b, 71d Short side parallel part 72 Lead-out wiring 72a, 72c Short side parallel part 72b Long side parallel part 73 Terminal part 74 Ground wiring 100, 110, 120, 130 Wiring patterns 111, 1 2,121,122,131,132 notch

Claims (11)

Printed wiring in which a wiring pattern made of a cured conductive ink film is formed on a substrate,
A printed wiring, characterized in that a wiring pattern that is extended in a specific direction on the surface of the base material and is not formed of a fine-line mesh is composed of wavy lines. The printed wiring according to claim 1,
The printed wiring is characterized in that the specific direction is two directions orthogonal to each other on the surface. The printed wiring according to claim 1,
The printed wiring, wherein the specific direction is only one direction on the surface. In the printed wiring in any one of Claims 1 thru | or 3,
The printed wiring, wherein the wavy line is provided with a notch at the apex of the folded portion protruding in at least one of two directions in a direction orthogonal to the extension direction.   An electronic device comprising the printed wiring according to claim 1. A method for producing printed wiring according to claim 1, comprising:
The conductive ink is squeezed in a direction perpendicular to the doctor blade by a doctor blade installed on a gravure plate having a recess for defining the wiring pattern so as to be parallel to one direction corresponding to the specific direction. A printed wiring production method, wherein the printed wiring is printed by gravure printing having a filling step. A method for producing a printed wiring according to claim 4,
Two conductive inks in a direction orthogonal to the doctor blade are placed on a gravure plate having a concave portion that defines the wiring pattern by a doctor blade installed so as to be parallel to one direction coinciding with the specific direction. A printed wiring production method comprising printing the printed wiring by gravure printing having a step of filling by squeezing in a direction in which the apex of the folded portion provided with the notch in the direction protrudes. . The touch panel is composed of a cured conductive ink film and includes a conductor layer having a sensor electrode array arranged in a rectangular sensor region, and a lead-out wiring led out from the sensor electrode array,
The sensor electrode array is formed of a fine line mesh composed of line segments obliquely intersecting both the short side and the long side of the rectangle,
Of the lead wires, at least one of a short side parallel portion extending parallel to the short side and a long side parallel portion extending parallel to the long side is not formed of a fine line mesh. A touch panel characterized in that the wiring is composed of wavy lines. The touch panel according to claim 8.
The touch panel, wherein the wavy line includes a notch at a vertex of the folded portion that protrudes in at least one of two directions in a direction orthogonal to the extension direction. A method for producing the touch panel according to claim 8, comprising:
A direction perpendicular to the doctor blade by the doctor blade installed on a gravure plate having a recess defining the pattern of the conductor layer so as to be parallel to one direction coinciding with the extending direction of the wavy line A method for producing a touch panel, wherein the conductor layer is printed by gravure printing having a step of filling by squeezing. A method for producing the touch panel according to claim 9,
A direction perpendicular to the doctor blade by the doctor blade installed on a gravure plate having a recess defining the pattern of the conductor layer so as to be parallel to one direction coinciding with the extending direction of the wavy line Production of the touch panel, wherein the conductor layer is printed by gravure printing having a step of filling by squeezing in a protruding direction of the apex of the folded portion having the notch in the two directions Method.

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