WO2016068161A1 - Pattern, patterned base material, and touch panel - Google Patents
Pattern, patterned base material, and touch panel Download PDFInfo
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- WO2016068161A1 WO2016068161A1 PCT/JP2015/080318 JP2015080318W WO2016068161A1 WO 2016068161 A1 WO2016068161 A1 WO 2016068161A1 JP 2015080318 W JP2015080318 W JP 2015080318W WO 2016068161 A1 WO2016068161 A1 WO 2016068161A1
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- Prior art keywords
- parallel lines
- line
- transparent substrate
- sets
- pattern
- Prior art date
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
Definitions
- the present invention relates to a conductive pattern formed on both surfaces of a transparent substrate, a substrate with a pattern, and a touch panel.
- the capacitive touch panel includes a plurality of arranged X-axis transparent electrodes and a plurality of Y-axis transparent electrodes, and changes in capacitance based on electrostatic coupling between these electrodes and a human finger.
- the position coordinates on the touch panel are detected using the generated induced current.
- an X-axis transparent electrode and a Y-axis transparent electrode are formed on two separate substrates, and the two substrates are separated by an insulating material between the X-axis and Y-axis transparent electrodes. Since it is made by bonding, it is disadvantageous for lightening and thinning, and it is necessary to align the X-axis and Y-axis transparent electrodes at the time of bonding, so the processing process is difficult and the yield is further increased. There was room for further improvement in terms of improving
- a complex oxide of indium-tin (ITO) is manufactured by a sputtering method.
- Membranes have been used.
- Patent Document 1 discloses a method of forming a conductive layer on both surfaces of a single substrate.
- a new transparent conductive film has been proposed in place of a transparent conductive film such as ITO.
- a metal mesh type transparent conductive film composed of a line pattern, a lattice pattern, a random pattern, etc., composed of conductive thin wires mainly composed of silver, copper or the like has been proposed.
- Patent Documents 2 and 3 a method for forming a transparent conductive film having a fine line pattern by using an inkjet method.
- a liquid containing a conductive material is applied to the surface of the substrate as a single line segment pattern.
- the patterning method method for applying the liquid to the substrate surface
- the drying conditions etc.
- Such a pattern constituted by parallel lines has a property that each line segment can achieve a line width of 10 ⁇ m or less, has a property that it is difficult to be visually recognized, and can also realize low resistance.
- the present inventor further studied, and the pattern constituted by such parallel lines can easily set the regularity of the line segment arrangement such that the arrangement interval of the line segments can be appropriately set, and this can be applied to both surfaces of the substrate. It has been found that the effect of improving the low visibility when the patterns on both sides are seen through the transparent base material can be achieved by providing. In particular, it has been found that the low visibility when the patterns on both sides are viewed through the transparent substrate can be remarkably improved by associating the regularity of the line segment arrangement between the pattern on the front surface and the pattern on the back surface.
- an object of the present invention is to provide a pattern, a substrate with a pattern, and a touch panel that can improve low visibility when a pattern on both sides is viewed through a transparent substrate.
- a pattern with functionality On both sides of the transparent substrate, Have one or more sets of two parallel lines containing conductive material, The one or more sets of parallel lines on any one of the surfaces is a pattern formed as a result of the conductive material being separated by the movement of the liquid. 2.
- the pattern according to 1 above wherein each of the front surface and the back surface of the transparent substrate is provided with one or more sets of parallel lines formed as a result of the conductive material being separated by liquid movement.
- 3. The pattern according to 1 or 2 wherein the arrangement of the parallel lines is mutually adjusted between the front surface and the back surface of the transparent substrate. 4).
- the pitches of the parallel lines formed on the back surface of the transparent substrate are adjusted so that the pitch of the parallel lines formed on the surface of the transparent substrate is within a range of ⁇ 20%. 4.
- the parallel lines of the line spacing L a has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged at the arrangement interval L a from one another
- the back surface of the transparent substrate, the parallel lines of the line spacing L b has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged at the arrangement interval L b from each other, 5.
- the parallel lines of the line spacing L a has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged in a L a larger arrangement intervals
- the parallel lines of the line spacing L b has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged in a L b larger arrangement intervals And 5.
- the surface of the transparent substrate has a plurality of sets of first parallel lines having a line interval L a1 , and at least two sets of these parallel lines do not intersect each other and are arranged at intervals greater than L a1.
- the surface of the transparent substrate has a plurality of sets of second parallel lines having a line interval La2 , and at least two sets of these parallel lines do not cross each other and are larger than each other La2 Are arranged at intervals, Furthermore, the first parallel line and the second parallel line intersect at an angle ⁇ ,
- the back surface of the transparent substrate has a plurality of sets of third parallel lines having a line interval L b1 , and at least two of these parallel lines do not intersect each other and are arranged at intervals greater than L b1.
- the back surface of the transparent substrate has a plurality of sets of fourth parallel lines having a line interval L b2 , and at least two sets of these parallel lines do not cross each other and are arranged larger than L b2. Are arranged at intervals, Further, the third parallel line and the fourth parallel line intersect at an angle ⁇ , When viewed through the transparent substrate, the first parallel lines on the front surface and the third parallel lines on the back surface do not cross each other, and the second parallel lines on the front surface and the back surface of the third parallel lines 4.
- the parallel lines on both sides of the transparent substrate are overlapped to form a lattice pattern, and the line spacing of each line segment constituting the lattice pattern is in the range of 100 ⁇ m to 400 ⁇ m. 2.
- the pattern according to 8, wherein the set of two parallel lines adjacent to each other in the lattice pattern is alternately assigned to each side of the transparent substrate. 10.
- a set of two parallel lines adjacent to each other is alternately assigned to each of a plurality of sets on both surfaces of the transparent substrate.
- a patterned base material comprising a transparent base material comprising the pattern according to any one of 1 to 10 above.
- 12 A touch panel comprising the patterned substrate according to 11 above.
- the present invention it is possible to provide a pattern, a substrate with a pattern, and a touch panel that can improve low visibility on both sides.
- a perspective sectional view for conceptually explaining an example of a method of forming a set of parallel lines by separating a conductive material by movement of a liquid The top view which shows an example of the electrode base material of a touch panel
- the figure explaining the 1st aspect of the pattern of this invention The flowchart for demonstrating the method for mutually adjusting arrangement
- the figure explaining the 2nd aspect of the pattern of this invention The figure explaining the 3rd aspect of the pattern of this invention
- the figure explaining the 4th aspect of the pattern of this invention The figure explaining the 5th aspect of the pattern of this invention
- the figure explaining the 6th aspect of the pattern of this invention Enlarged view of the main part in FIG.
- the figure explaining the 7th aspect of the pattern of this invention Perspective sectional view showing an example of parallel lines formed on a substrate
- the pattern of the present invention has at least one set of two parallel lines each containing a conductive material on both sides of a transparent substrate (hereinafter sometimes simply referred to as a substrate), and has functionality.
- a transparent substrate hereinafter sometimes simply referred to as a substrate
- the one or more sets of parallel lines on any one surface are formed as a result of the conductive material being separated by the movement of the liquid.
- a pattern including one or more sets of parallel lines formed as a result of separation of the conductive material by the movement of the liquid can easily reduce the line segments constituting the parallel lines. It is easy to give regularity to the pattern, for example, the arrangement interval of the minute can be appropriately set, and by providing this on both surfaces of the transparent substrate, it is possible to improve low visibility when viewing the pattern on both surfaces through the transparent substrate. An effect is produced. Low visibility means that the pattern is difficult to be visually recognized. In particular, by associating the regularity of the pattern between the front surface and the back surface of the transparent substrate, the low visibility when the patterns on both sides are viewed through the transparent substrate can be significantly improved.
- FIG. 1 is a perspective cross-sectional view conceptually illustrating an example of a method of separating a conductive material by movement of a liquid to form a set of parallel lines.
- 1 is a transparent substrate
- 2 is a liquid containing a conductive material
- 3 is a parallel line formed by selectively depositing a conductive material on the edge of the liquid 2. is there.
- a liquid 2 containing a conductive material is applied to the surface of the substrate 1 in a line shape.
- the conductive material is selectively applied to the edge of the line-shaped liquid 2 by utilizing the coffee stain phenomenon. Deposit.
- the drying of the line-shaped liquid 2 disposed on the substrate 1 is faster at the edge than the center, and the local deposition of the conductive material occurs at the edge of the line-shaped liquid 2.
- the edge of the line-shaped liquid 2 is fixed by the deposited conductive material, and shrinkage in the width direction of the line-shaped liquid 2 due to subsequent drying is suppressed.
- the liquid of the line-like liquid 2 forms a flow from the central portion toward the edge so as to supplement the liquid lost by evaporation at the edge. This flow causes additional conductive material to be carried to the edge and deposited. This flow is caused by immobilization of the contact line of the line-shaped liquid 2 accompanying drying and a difference in evaporation amount between the central part of the line-shaped liquid 2 and the edge.
- Two line segments 31 and 32 can be formed from one line-like liquid 2.
- the line width of each of the line segments 31 and 32 can be made sufficiently narrower than the application width of the line-shaped liquid 2.
- the formation positions of the line segments 31 and 32 can be appropriately set by setting the application position of the line-like liquid 2 or the like.
- the arrangement interval between the line segments 31 and 32 can be appropriately set by setting the width of the line-like liquid 2 applied.
- a combination of the line segments 31 and 32 formed by separating the conductive material by the movement of the liquid is referred to as one set (or two) parallel lines 3.
- a pattern including such parallel lines 3 can be formed on both the front surface and the back surface of the substrate 1.
- the parallel lines 3 may be subjected to post-processing such as baking or plating.
- the application of the line liquid on the substrate can be performed using, for example, a droplet discharge device.
- a liquid containing a conductive material is discharged from a nozzle of the droplet discharge device while moving the droplet discharge device relative to the substrate, and the discharged droplets are united on the substrate.
- the line-like liquid containing an electroconductive material can be formed.
- the droplet discharge device can be constituted by, for example, an inkjet head provided in the inkjet recording device.
- the use of the substrate with a pattern comprising the pattern of the present invention on a transparent substrate is not particularly limited, for example, it can be particularly suitably used as an electrode substrate (also referred to as an electrode substrate) for a touch panel such as a capacitance type. .
- FIG. 2 is a plan view showing an example of the electrode base material of the touch panel.
- the electrode substrate of the touch panel has a plurality of strip-shaped X-axis transparent electrodes 11 along the X-axis direction arranged in parallel on the surface of the transparent substrate 1, and a plurality of strip-shaped Y-axis transparent electrodes 12 along the Y-axis direction on the back surface. It is installed side by side.
- the strip-shaped X-axis transparent electrode 11 and the strip-shaped Y-axis transparent electrode 12 intersect at a distance corresponding to the thickness of the transparent substrate 1 at the intersection 13.
- the strip-shaped X-axis transparent electrode 11 and the strip-shaped Y-axis transparent electrode 12 are overlapped via the transparent base material 1.
- the strip-shaped X-axis transparent electrode and the strip-shaped Y-axis transparent electrode are each formed of a solid film such as an ITO vapor deposition film.
- the strip-shaped X-axis transparent electrode 11 and the strip-shaped Y-axis transparent electrode 12 can be constituted by an aggregate of fine wires including a conductive material.
- low visibility can be improved by using a parallel line formed by separating a conductive material by movement of a liquid as a thin line.
- by adjusting the arrangement of parallel lines and correlating the regularity of the pattern between the front and back surfaces of the transparent substrate, low visibility when viewing the pattern on both sides through the transparent substrate Can be significantly improved.
- the pattern illustrated below may correspond to an enlarged view in which a part of the intersecting portion 13 in the electrode base material of the touch panel described above is enlarged in one aspect of the present invention.
- FIG. 3 is a diagram for explaining a first aspect of the pattern of the present invention.
- a plurality of sets of two parallel lines 3 containing a conductive material are provided on the surface of the transparent substrate 1.
- Each parallel line 3 is composed of a combination of line segments 31 and 32 formed by separating the conductive material by the movement of the liquid.
- each parallel line 4 is composed of a combination of line segments 41 and 42 formed by separating the conductive material by the movement of the liquid.
- the parallel lines on the front surface described in this specification are represented by solid lines in the figure, and the parallel lines on the back surface are represented by broken lines in the figure.
- the arrangement of the parallel lines 3 and 4 is adjusted between the front surface and the back surface of the transparent substrate 1.
- the pitch of the parallel lines 4 formed on the back surface is adjusted to be within a range of ⁇ 20% with respect to the pitch of the parallel lines 3 formed on the surface of the transparent substrate 1.
- ⁇ 10 % Is more preferably adjusted, and most preferably it is adjusted to be within a range of ⁇ 5%.
- the pitch of the parallel lines 3 is the pitch of the line segments 31 and 32 arranged in parallel on the front surface
- the pitch of the parallel lines 4 is the line segments 41 and 42 arranged in parallel on the back surface. It is the pitch of.
- the surface of the transparent substrate 1 has a plurality of sets of parallel lines 3 with a line interval La, and at least two of the parallel lines 3 do not cross each other and are arranged with each other. They are arranged at intervals L a.
- the “line interval” of the parallel lines is an interval between the line segments 31 and 32 constituting the parallel lines, and the “arrangement intervals” of the parallel lines is two sets adjacent to each other. The interval between the parallel lines 3.
- the parallel lines 4 of line spacing L b has a plurality of sets, of these at least two sets of parallel lines 4 do not intersect each other and arranged at the arrangement interval L b from each other Has been.
- the at least two sets of parallel lines 3 on the front surface and the at least two sets of parallel lines 4 on the back surface are arranged so as not to cross each other.
- “see through a transparent substrate” means that the transparent substrate is seen through in a direction perpendicular to the transparent substrate.
- the low visibility can be further improved by adopting such an arrangement.
- a line segment selected from the line segments 31 and 32 constituting the parallel line 3 on the front surface and a line constituting the parallel line 4 on the back surface are provided. It is preferable that the line segments selected from the minutes 41 and 42 are alternately arranged one by one.
- each line segment 31 and 32 constituting the stripe pattern is displayed.
- 41 and 42 are preferably substantially equal.
- the term “substantially equal” between the line segments preferably means that the standard deviation is less than 30.
- the range the difference is a predetermined, preferably determines whether it is within a range of ⁇ 20% (S5).
- the predetermined printing condition temporarily set for the back side printing is changed and reset (S6), and then the step returns to the back side printing step (S3).
- the adjustment is completed (S7), and the predetermined printing condition temporarily set for the front surface printing and the back surface printing can be set as the main setting.
- the present invention is not limited to the above example.
- the predetermined printing condition temporarily set for the front surface printing is changed and reset, and then the front surface You may make it return to the printing step (S1).
- the transparent base material when performing a process of heating the transparent base material in surface printing or the like, the transparent base material may be thermally deformed, but by taking the above-mentioned adjustment into consideration, The arrangement of the parallel lines 3 and 4 can be mutually adjusted between the front surface and the back surface of the transparent substrate 1. Therefore, when the transparent substrate is easily thermally deformed, for example, when the transparent substrate is made of a resin (for example, a resin film), the effect is particularly remarkable.
- a resin for example, a resin film
- FIG. 5 is a diagram for explaining a second aspect of the pattern of the present invention.
- the parallel lines 4 of line spacing L b has a plurality of sets, of these at least two sets of parallel lines 4 do not intersect with each other, and, in L b larger arrangement intervals Has been placed.
- the parallel lines 3 on the front surface and the parallel lines 4 on the back surface are alternately arranged one by one when viewed through the transparent substrate 1.
- the at least two sets of parallel lines 3 on the front surface and the at least two sets of parallel lines 4 on the back surface are arranged so as not to cross each other.
- the low visibility can be further improved by adopting such an arrangement.
- the pitch of the parallel lines 3 on the front surface is preferably 4L a and the pitch of the parallel lines 4 on the back surface is preferably 4L b .
- the parallel lines 3 and 4 on both sides of the transparent substrate 1 are overlapped to form a stripe pattern, and each line segment 31 and 32 constituting the stripe pattern is displayed.
- 41 and 42 are preferably substantially equal.
- FIG. 6 is a diagram for explaining a third aspect of the pattern of the present invention.
- the surface of the transparent substrate 1 has a plurality of sets of first parallel lines 3A having a line interval L a1 , and at least two of the parallel lines 3A do not intersect with each other and are arranged larger than L a1. Arranged at intervals.
- the surface of the transparent substrate 1 has a plurality of sets of second parallel lines 3B having a line interval L a2 , and at least two sets of the parallel lines 3B do not intersect with each other and from each other by L a2 Arranged at large intervals.
- the first parallel line 3A and the second parallel line 3B intersect at an angle ⁇ .
- the angle ⁇ is not particularly limited, but is preferably 90 ° as illustrated.
- a plurality of sets of third parallel lines 4A having a line interval Lb1 are provided on the back surface of the transparent substrate 1, and at least two sets of the parallel lines 4A among these do not intersect each other and from each other by Lb1 . Arranged at large intervals.
- a plurality of sets of fourth parallel lines 4B having a line interval Lb2 are provided on the back surface of the transparent substrate 1, and at least two sets of these parallel lines 4B do not intersect with each other and from each other by Lb2 . Arranged at large intervals.
- the third parallel line 4A and the fourth parallel line 4B intersect at an angle ⁇ .
- the angle ⁇ is not particularly limited, but is preferably 90 ° as illustrated.
- the first parallel lines 3A on the front surface and the third parallel lines 4A on the back surface do not intersect each other, and the second parallel lines 3B on the front surface and the back surface
- the fourth parallel lines 4B are arranged so as not to cross each other.
- FIG. 7 is a diagram for explaining a fourth aspect of the pattern of the present invention.
- a pair of two parallel lines 3, 4 adjacent to each other are arranged on both sides of the transparent base material 1. It is also preferable that two sets are alternately assigned in the example.
- FIG. 8 is a diagram for explaining a fifth aspect of the pattern of the present invention.
- both the parallel lines on the front surface and the parallel lines on the back surface are represented by solid lines.
- the line spacing (a1, a2, a3,..., B1, b2, b3,%) Constituting the lattice pattern is preferably in the range of 50 ⁇ m to 5000 ⁇ m, and preferably 100 ⁇ m to 400 ⁇ m. More preferably, it is the range. In particular, from the viewpoint of ensuring conductivity, it is preferable that the line spacing of the lattice pattern is in the range of 50 ⁇ m to 400 ⁇ m. Furthermore, when forming a parallel line pattern with a large area, the line spacing should be in the range of 400 ⁇ m to 4000 ⁇ m from the viewpoint of increasing the tolerance of alignment accuracy between the parallel lines on the front surface and the parallel lines on the back surface. Is also preferable.
- the standard deviation of the line intervals (a1, a2, a3,..., B1, b2, b3,%) Constituting the lattice pattern is less than 30.
- the standard deviation is calculated on the basis of these measured values by measuring the line spacing in a group of line segments that are in parallel with each other.
- the respective standard deviations are calculated. It is particularly preferable that the standard deviation of each of the two line segment groups is less than 30.
- a plurality of sets of two parallel lines are respectively assigned to the front surface or the back surface of the transparent substrate.
- two sets of parallel lines adjacent to each other are alternately assigned to both surfaces of the transparent substrate, one set or a predetermined number of sets of two or more.
- FIG. 10 is an enlarged view of the main part in FIG. 9, FIG. 10 (a) is an enlarged view of the intersection of parallel lines formed on the surface of the transparent substrate, and FIG. 10 (b) is a transparent substrate. It is an enlarged view of the intersection of the parallel lines formed on the back surface of the material.
- the second parallel lines 3B formed so as to intersect the first parallel lines 3A previously formed are the first parallel lines 3A formed previously. Susceptible to.
- the line-shaped liquid for forming the second parallel lines 3B is based on the difference between the surface energy of the transparent substrate and the surface energy of the region where the first parallel lines 3A are already formed.
- the wetting spread becomes larger than the other regions, or conversely, the wetting spread becomes smaller.
- the interval between the line segments 31 and 32 constituting the second parallel line (parallel line along the arrow (i) in the figure) 3B is already the first.
- the parallel line (parallel line along the arrow (ii) in the figure) 3A it becomes locally larger or conversely smaller.
- the part where the interval is increased is referred to as an expanded part.
- the expansion direction of the expansion site 3C in the second parallel line 3B (the direction in which the interval between the line segments constituting the parallel line increases) is the upper left-right in the figure. It is the down direction.
- the fourth parallel lines 4 ⁇ / b> B formed so as to intersect with the third parallel lines 4 ⁇ / b> A formed earlier are the third parallel lines formed earlier. Susceptible to line 4A.
- the interval between the line segments 41 and 42 constituting the fourth parallel line (parallel line along the arrow (ii) in the figure) 4B is already the third line.
- the region becomes locally larger and forms an expanded portion 4C.
- the expansion direction of the expansion portion 4C in the fourth parallel line 4B is the upper right-lower left direction in the drawing.
- the expansion portions 3C and 4C are formed on the front surface and the back surface of the transparent substrate 1, respectively, but the expansion directions thereof are different between the front surface and the back surface.
- swelling direction are arranged in zigzag form, The expansion
- swelling direction are made not to distribute unevenly.
- the inflated portions having the same inflating direction are not unevenly distributed, thereby further improving the low visibility.
- the expansion direction at the expansion site can be appropriately set according to the order of forming parallel lines.
- the expansion direction of the expansion portion where the interval between the line segments constituting the parallel line is increased is described.
- this description is based on the contraction direction of the contraction region where the interval between the line segments constituting the parallel line is decreased. It is preferable that the contraction parts having the same contraction direction are not distributed unevenly.
- FIG. 11 is a diagram for explaining a seventh aspect of the pattern of the present invention.
- the lattice-like pattern When viewed through the transparent base material, the lattice-like pattern is exhibited by the parallel lines 3 on the front surface of the transparent base material 1 and the parallel lines 4 on the back surface.
- a long head 6 constituted by connecting a plurality of inkjet heads 5 having a predetermined printing width at a connecting portion 51 is used.
- the long head 6 connects the inkjet heads 5 so that a part of the long heads 6 overlap each other.
- the surface of the transparent substrate 1 is disposed so as to face the long head 6, and the long head 6 is N with respect to the surface of the transparent substrate 1 in the drawing. While relatively moving in the direction, ink is ejected from each inkjet head 5 to give a line-shaped liquid on the transparent substrate 1. Thereafter, the conductive material is separated by the movement of the liquid to form parallel lines 3 on the surface.
- the parallel lines 3 on the surface are formed across a plurality of inkjet heads 5 connected to each other.
- ink is ejected from each inkjet head 5 while moving the long head 6 relative to the back surface of the transparent substrate 1 in the N direction in the figure.
- a linear liquid is applied on the transparent substrate 1.
- the conductive material is separated by the movement of the liquid, and the parallel lines 4 on the back surface are formed.
- the transparent base material 1 is viewed from the front surface for convenience of explanation. However, in practice, the transparent base material 1 is reversed so that the back surface of the transparent base material 1 is long. It arrange
- the parallel lines 4 on the back surface are formed across a plurality of inkjet heads 5 connected to each other.
- the movement path M1 of the connection part 51 between the inkjet heads 5 when forming the parallel lines 3 on the front surface and the movement path M2 of the connection part 51 between the inkjet heads 5 when forming the parallel lines 4 on the back surface are adjusted so that they are not arranged on the same straight line when viewed through the transparent substrate 1.
- a plurality of parallel lines are formed on both surfaces of the transparent substrate 1, and all of the parallel lines are formed as a result of separation of the conductive material by the movement of the liquid.
- the present invention is not limited to this. It is only necessary that one or more sets of parallel lines be formed on both surfaces of the transparent substrate 1.
- the parallel lines formed as a result of the separation of the conductive material by the movement of the liquid are the transparent substrate 1. It should just be formed only in either one of the front surface and the back surface.
- each of the front and back surfaces of the transparent substrate is provided with one or more sets of parallel lines formed as a result of the conductive material being separated by the movement of the liquid.
- Preferred examples of the conductive material included in the parallel lines include conductive fine particles and conductive polymers.
- the conductive fine particles are not particularly limited, but Au, Pt, Ag, Cu, Ni, Cr, Rh, Pd, Zn, Co, Mo, Ru, W, Os, Ir, Fe, Mn, Ge, Sn, Ga.
- fine particles such as In can be exemplified, and among them, use of fine metal particles such as Au, Ag, and Cu is more preferable because a circuit pattern having low electric resistance and strong against corrosion can be formed.
- metal fine particles containing Ag are most preferable.
- the average particle diameter of these metal fine particles is preferably in the range of 1 to 100 nm, more preferably in the range of 3 to 50 nm.
- carbon fine particles are used as the conductive fine particles.
- the carbon fine particles include graphite fine particles, carbon nanotubes, fullerenes and the like.
- the conductive polymer is not particularly limited, but a ⁇ -conjugated conductive polymer can be preferably exemplified.
- the ⁇ -conjugated conductive polymer is not particularly limited, and polythiophenes, polypyrroles, polyindoles, polycarbazoles, polyanilines, polyacetylenes, polyfurans, polyparaphenylenes, polyparaphenylene vinylenes, poly Chain conductive polymers such as paraphenylene sulfides, polyazulenes, polyisothianaphthenes, and polythiazyl can be used.
- polythiophenes and polyanilines are preferable in that high conductivity can be obtained. Most preferred is polyethylene dioxythiophene.
- the conductive polymer more preferably comprises the above-described ⁇ -conjugated conductive polymer and polyanion.
- a conductive polymer can be easily produced by chemical oxidative polymerization of a precursor monomer that forms a ⁇ -conjugated conductive polymer in the presence of an appropriate oxidizing agent, an oxidation catalyst, and a polyanion.
- the polyanion is a substituted or unsubstituted polyalkylene, a substituted or unsubstituted polyalkenylene, a substituted or unsubstituted polyimide, a substituted or unsubstituted polyamide, a substituted or unsubstituted polyester, and a copolymer thereof. It consists of a structural unit having a group and a structural unit having no anionic group.
- This polyanion is a solubilized polymer that solubilizes a ⁇ -conjugated conductive polymer in a solvent.
- the anion group of the polyanion functions as a dopant for the ⁇ -conjugated conductive polymer, and improves the conductivity and heat resistance of the ⁇ -conjugated conductive polymer.
- the anion group of the polyanion may be a functional group capable of undergoing chemical oxidation doping to the ⁇ -conjugated conductive polymer.
- a monosubstituted sulfate group A monosubstituted phosphate group, a phosphate group, a carboxy group, a sulfo group and the like are preferable.
- a sulfo group, a monosubstituted sulfate group, and a carboxy group are more preferable.
- polyanions include polyvinyl sulfonic acid, polystyrene sulfonic acid, polyallyl sulfonic acid, polyacrylic acid ethyl sulfonic acid, polyacrylic acid butyl sulfonic acid, poly-2-acrylamido-2-methylpropane sulfonic acid, polyisoprene sulfone. Acid, polyvinyl carboxylic acid, polystyrene carboxylic acid, polyallyl carboxylic acid, polyacryl carboxylic acid, polymethacryl carboxylic acid, poly-2-acrylamido-2-methylpropane carboxylic acid, polyisoprene carboxylic acid, polyacrylic acid and the like. . These homopolymers may be sufficient and 2 or more types of copolymers may be sufficient.
- it may be a polyanion having F (fluorine atom) in the compound.
- F fluorine atom
- Nafion made by Dupont
- Flemion made by Asahi Glass Co., Ltd.
- perfluoro vinyl ether containing a carboxylic acid group and the like can be mentioned.
- a compound having a sulfonic acid is more preferable since the ink ejection stability is particularly good when the ink jet printing method is used and high conductivity is obtained.
- polystyrene sulfonic acid polyisoprene sulfonic acid
- polyacrylic acid ethyl sulfonic acid and polybutyl acrylate sulfonic acid are preferable.
- These polyanions have the effect of being excellent in conductivity.
- the polymerization degree of the polyanion is preferably in the range of 10 to 100,000 monomer units, and more preferably in the range of 50 to 10,000 from the viewpoint of solvent solubility and conductivity.
- a commercially available material can be preferably used as the conductive polymer.
- a conductive polymer (abbreviated as PEDOT / PSS) made of poly (3,4-ethylenedioxythiophene) and polystyrene sulfonic acid is used in H.264. C. It is commercially available from Starck as CLEVIOS series, from Aldrich as PEDOT-PSS 483095 and 560598, and from Nagase Chemtex as Denatron series. Polyaniline is also commercially available from Nissan Chemical as the ORMECON series.
- liquid containing a conductive material used when forming a line-shaped liquid water, an organic solvent or the like can be used alone or in combination.
- the organic solvent is not particularly limited.
- alcohols such as 1,2-hexanediol, 2-methyl-2,4-pentanediol, 1,3-butanediol, 1,4-butanediol, propylene glycol
- ethers such as diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, triethylene glycol monomethyl ether, dipropylene glycol monomethyl ether, and dipropylene glycol monoethyl ether.
- liquid containing the conductive material may contain various additives such as a surfactant as long as the effects of the present invention are not impaired.
- the surface tension or the like may be adjusted to stabilize the discharge. It becomes possible.
- the surfactant is not particularly limited, but a silicon surfactant or the like can be used. Silicon-based surfactants are those in which the side chain or terminal of dimethylpolysiloxy acid is modified with polyether. For example, KF-351A and KF-642 manufactured by Shin-Etsu Chemical Co., Ltd. ing.
- the addition amount of the surfactant is preferably 1% by weight or less with respect to the total amount of the liquid that forms the line-like liquid 2.
- the transparent substrate is not particularly limited, and examples thereof include glass and plastic (polyethylene terephthalate, polybutylene terephthalate, polyethylene, polypropylene, acrylic, polyester, polyamide, etc.), and these may be used alone. , And may be used in a bonded state.
- plastic is preferable, and polyethylene terephthalate, polyolefin such as polyethylene and polypropylene, and the like are preferable.
- the transparent base material preferably has the same processing on both sides, and the surface energy difference between the two sides is preferably within 5%.
- FIG. 12 is a perspective cross-sectional view showing an example of parallel lines formed on a substrate, and the cross section corresponds to a vertical cross section cut in a direction orthogonal to the direction in which the parallel lines are formed.
- the set of two thin lines (line segments) 31 and 32 of the parallel lines 3 generated from one line-shaped liquid do not necessarily need to be islands completely independent from each other.
- the two line segments 31 and 32 are connected to each other between the line segments 31 and 32 by a thin film portion 30 formed at a height lower than the height of the line segments 31 and 32. It is also preferable to be formed as.
- the line widths W1 and W2 of the line segments 31 and 32 of the parallel line 3 are each 10 ⁇ m or less. If it is 10 micrometers or less, since it will be a level which cannot be visually recognized normally, it is more preferable from a viewpoint of improving transparency. Considering the stability of the line segments 31 and 32, the line widths W1 and W2 of the line segments 31 and 32 are preferably in the range of 2 ⁇ m or more and 10 ⁇ m or less, respectively.
- the widths W1 and W2 of the line segments 31 and 32 are Z, which is the height of the thinnest portion where the thickness of the conductive material is the thinnest between the line segments 31 and 32.
- the protruding heights 31 and 32 are defined as Y1 and Y2, they are defined as the widths of the line segments 31 and 32 at half the height of Y1 and Y2.
- the height of the thinnest portion in the thin film portion 30 can be set to Z.
- the line widths W1 and W2 of the line segments 31 and 32 are the line segments 31 and 32 from the surface of the substrate 1. Are defined as the widths of the line segments 31 and 32 at half the heights H1 and H2.
- the lines from the surface of the substrate 1 are ensured from the viewpoint of securing a cross-sectional area and reducing resistance.
- the heights H1 and H2 of the minutes 31 and 32 are preferably higher. Specifically, the heights H1 and H2 of the line segments 31 and 32 are preferably in the range of 50 nm to 5 ⁇ m.
- the H1 / W1 ratio and the H2 / W2 ratio are preferably in the range of 0.01 or more and 1 or less, respectively.
- the height Z of the thinnest portion where the thickness of the conductive material is the thinnest between the line segments 31 and 32, specifically, the thinnest portion of the thin film portion 30 is preferably in the range of 10 nm or less.
- the thin film portion 30 is provided in the range of 0 ⁇ Z ⁇ 10 nm in order to achieve a balance between transparency and stability.
- the H1 / Z ratio and the H2 / Z ratio are each preferably 5 or more, more preferably 10 or more, and preferably 20 or more. Particularly preferred.
- the interval I between the line segments 31 and 32 can be appropriately adjusted by setting the application width of the line-like liquid, etc., and is preferably adjusted in the range of 10 ⁇ m to 300 ⁇ m.
- interval I between the line segments 31 and 32 is defined as the distance between the maximum protrusions of the line segments 31 and 32.
- the line segment 31 and the line segment 32 it is preferable to give the same shape (similar cross-sectional area) to the line segment 31 and the line segment 32.
- the heights H1 and H2 of the line segment 31 and the line segment 32 are substantially equal.
- the line widths W1 and W2 of the line segment 31 and the line segment 32 are substantially equal values.
- the line segments 31 and 32 do not necessarily have to be parallel, and it is sufficient that the line segments 31 and 32 are not coupled to each other over at least a certain length L in the line segment direction. Preferably, the line segments 31 and 32 are substantially parallel over at least a certain length L in the line segment direction.
- the length L of the line segments 31 and 32 in the line segment direction is preferably at least 5 times the interval I between the line segments 31 and 32, and more preferably at least 10 times.
- the length L and the interval I can be set corresponding to the formation length and formation width of the pattern (line-shaped liquid) 2.
- the line segments 31 and 32 may be connected to form a continuum at the formation start point and end point of the line-shaped liquid (start point and end point over a certain length L in the line segment direction).
- the line segments 31 and 32 have substantially the same line widths W1 and W2, and the line widths W1 and W2 are sufficiently narrower than the distance between the two lines (interval I).
- the line segment 31 and the line segment 32 constituting the pattern 3 generated from one line-shaped liquid are formed at the same time.
- the line segments 31 and 32 satisfy all of the following conditions (a) to (d). Thereby, it becomes difficult to visually recognize the pattern, transparency can be improved, line segments are stabilized, and the effect of reducing the resistance value of the pattern is excellent.
- each line segment 31 and 32 is H1 and H2, and the height of the thinnest part in each line segment is Z, 5 ⁇ H1 / Z and 5 ⁇ H2 / Z.
- A When the widths of the line segments 31 and 32 are W1 and W2, W1 ⁇ 10 ⁇ m and W2 ⁇ 10 ⁇ m.
- C When the distance between the line segments 31 and 32 is I, 50 ⁇ m ⁇ I ⁇ 5000 ⁇ m.
- D When the heights of the line segments 31 and 32 are H1 and H2, 50 nm ⁇ H1 ⁇ 5 ⁇ m and 50 nm ⁇ H2 ⁇ 5 ⁇ m.
- Example 1 What is shown in FIG. 3 under the following conditions using the inkjet method on each surface of a PET film (transparent substrate 1) having the same processing on both surfaces and having a surface energy difference of 5% or less on both surfaces. A similar pattern was formed.
- the angle was adjusted by moving the stage on which the head or the transparent substrate 1 is placed so that the parallel lines 4 on the back surface are parallel to the parallel lines 3 on the front surface.
- line spacing L a measured for the parallel lines 3 of the surface
- line spacing L b of the back surface of parallel lines 4 was adjusted as described in FIG. 4 .
- L a is substantially equal to L b and is 200 ⁇ m.
- the alignment was performed so that the parallel lines 3 on the front surface and the parallel lines 4 on the back surface were arranged so as to be shifted from each other by L a / 2.
- the obtained substrate with a pattern was excellent in low visibility of the pattern.
- Example 2 In Example 1, the ink landing position was changed to obtain a patterned substrate having the same pattern as that shown in FIG.
- the landing position of the ink for forming the rear surface of parallel lines 4, from the center of the parallel lines 3 of the surface was set at a position shifted 2L a.
- the obtained substrate with a pattern was excellent in low visibility of the pattern.
- Example 3 A pattern similar to that shown in FIG. 6 was formed on each surface of a PET film (transparent substrate 1) similar to that used in Example 1 using the inkjet method under the following conditions.
- a line-like liquid was applied to the surface of the transparent substrate 1 by an inkjet method to cause a coffee stain phenomenon, thereby forming the first parallel lines 3A.
- the application interval of the line-shaped liquid was adjusted so that the arrangement interval of the parallel lines obtained (corresponding to the interval indicated by X1 in FIG. 6) was 600 ⁇ m.
- the line spacing of the parallel lines was 200 ⁇ m.
- the angle is changed so that it intersects the first parallel line 3A, and the second parallel line 3B is changed in the same manner as the first parallel line 3A. Formed.
- the angle is changed so as to cross the third parallel line 4A, and the fourth parallel line 4B is changed in the same manner as the third parallel line 4A. Formed.
- the obtained substrate with a pattern was excellent in low visibility of the pattern.
- Example 4 In Example 3, the ink landing position was changed to obtain a patterned substrate having the same pattern as that shown in FIG.
- a portion where the arrangement interval (corresponding to the interval indicated by X2 in FIG. 7) is set to 1000 ⁇ m is partially provided on the parallel lines on the front surface and the back surface, and it is presented when viewed through the transparent substrate 1.
- two sets of two parallel lines 3 and 4 adjacent to each other were alternately assigned to both surfaces of the transparent substrate 1 by two sets.
- the obtained substrate with a pattern was excellent in low visibility of the pattern.
- Example 5 In the third embodiment, the order of forming the first to fourth parallel lines is changed, and the first parallel lines, the second parallel lines, the fourth parallel lines, and the third parallel lines are formed in this order. Thus, a substrate with a pattern having the same pattern as that shown in FIGS. 9 and 10 was obtained.
- expansion portions 3C and 4C are formed on the front surface and the back surface of the transparent substrate 1, respectively, but the expansion directions are different between the front surface and the back surface. ing. And the expansion site
- swelling direction are arranged in zigzag form, The expansion
- swelling direction are made not to distribute unevenly.
- the obtained substrate with a pattern was excellent in low visibility of the pattern without conspicuous expansion sites.
- Example 6 In Example 3, parallel lines were formed using the long head 6 in the same manner as shown in FIG.
- the obtained substrate with a pattern was excellent in the low visibility of the pattern even in the region along the movement path of the head connecting portion.
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Abstract
Description
機能性を持つパターンであって、
透明基材の両面に、
導電性材料を含有する2本1組の平行線を1組以上有し、
何れか一方の面の前記1組以上の平行線は、導電性材料が液体の動きにより分離された結果形成されたものであるパターン。
2.
前記透明基材の表面と裏面のそれぞれに、導電性材料が液体の動きにより分離された結果形成された平行線を1組以上備える前記1記載のパターン。
3.
前記透明基材の表面と裏面との間で、前記平行線の配置が相互に調整されている前記1又は2記載のパターン。
4.
前記透明基材の表面に形成した前記平行線のピッチに対して、前記透明基材の裏面に形成した前記平行線のピッチが、±20%の範囲になるように調整されている前記1~3の何れかに記載のパターン。
5.
前記透明基材の表面に、線間隔Laの平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いに配置間隔Laで配置されており、
前記透明基材の裏面に、線間隔Lbの平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いに配置間隔Lbで配置されており、
前記透明基材を通して見たときに、表面の前記少なくとも2組の平行線と、裏面の前記少なくとも2組の平行線とが、互いに交差しない前記1~4の何れかに記載のパターン。
6.
前記透明基材の表面に、線間隔Laの平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLaより大きい配置間隔で配置されており、
前記透明基材の裏面に、線間隔Lbの平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLbより大きい配置間隔で配置されており、
前記透明基材を通して見たときに、表面の前記少なくとも2組の平行線と、裏面の前記少なくとも2組の平行線とが、互いに交差しない前記1~4の何れかに記載のパターン。
7.
前記透明基材の表面に、線間隔La1の第1の平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLa1より大きい配置間隔で配置されており、
さらに、前記透明基材の表面に、線間隔La2の第2の平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLa2より大きい配置間隔で配置されており、
さらに、前記第1の平行線と前記第2の平行線は、角度αで交差しており、
前記透明基材の裏面に、線間隔Lb1の第3の平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLb1より大きい配置間隔で配置されており、
さらに、前記透明基材の裏面に、線間隔Lb2の第4の平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLb2より大きい配置間隔で配置されており、
さらに、前記第3の平行線と前記第4の平行線は、角度βで交差しており、
前記透明基材を通して見たときに、表面の前記第1の平行線と、裏面の前記第3の平行線は、互いに交差せず、かつ、表面の前記第2の平行線と、裏面の前記第4の平行線は、互いに交差しない前記1~4の何れかに記載のパターン。
8.
前記透明基材を通して見たときに、前記透明基材の両面の前記平行線が重なり合って格子状パターンが呈され、該格子状パターンを構成する各線分の線間隔は、100μm~400μmの範囲であり、かつ標準偏差が30未満である前記1記載のパターン。
9.
前記格子状パターンにおいて、互いに隣接する2本1組の前記平行線は、前記透明基材の両面に、1組ずつ交互に割り当てられている前記8記載のパターン。
10.
前記格子状パターンにおいて、互いに隣接する2本1組の前記平行線は、前記透明基材の両面に、複数組ずつ交互に割り当てられている前記8記載のパターン。
11.
前記1~10の何れかに記載のパターンを透明基材に備えてなるパターン付き基材。
12.
前記11記載のパターン付き基材を備えたタッチパネル。 1.
A pattern with functionality,
On both sides of the transparent substrate,
Have one or more sets of two parallel lines containing conductive material,
The one or more sets of parallel lines on any one of the surfaces is a pattern formed as a result of the conductive material being separated by the movement of the liquid.
2.
2. The pattern according to 1 above, wherein each of the front surface and the back surface of the transparent substrate is provided with one or more sets of parallel lines formed as a result of the conductive material being separated by liquid movement.
3.
The pattern according to 1 or 2, wherein the arrangement of the parallel lines is mutually adjusted between the front surface and the back surface of the transparent substrate.
4).
The pitches of the parallel lines formed on the back surface of the transparent substrate are adjusted so that the pitch of the parallel lines formed on the surface of the transparent substrate is within a range of ± 20%. 4. The pattern according to any one of 3.
5.
On the surface of the transparent substrate, the parallel lines of the line spacing L a has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged at the arrangement interval L a from one another,
The back surface of the transparent substrate, the parallel lines of the line spacing L b has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged at the arrangement interval L b from each other,
5. The pattern according to any one of 1 to 4, wherein the at least two sets of parallel lines on the front surface and the at least two sets of parallel lines on the back surface do not intersect each other when viewed through the transparent substrate.
6).
On the surface of the transparent substrate, the parallel lines of the line spacing L a has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged in a L a larger arrangement intervals And
The back surface of the transparent substrate, the parallel lines of the line spacing L b has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged in a L b larger arrangement intervals And
5. The pattern according to any one of 1 to 4, wherein the at least two sets of parallel lines on the front surface and the at least two sets of parallel lines on the back surface do not intersect each other when viewed through the transparent substrate.
7).
The surface of the transparent substrate has a plurality of sets of first parallel lines having a line interval L a1 , and at least two sets of these parallel lines do not intersect each other and are arranged at intervals greater than L a1. Has been placed,
Further, the surface of the transparent substrate has a plurality of sets of second parallel lines having a line interval La2 , and at least two sets of these parallel lines do not cross each other and are larger than each other La2 Are arranged at intervals,
Furthermore, the first parallel line and the second parallel line intersect at an angle α,
The back surface of the transparent substrate has a plurality of sets of third parallel lines having a line interval L b1 , and at least two of these parallel lines do not intersect each other and are arranged at intervals greater than L b1. Has been placed,
Further, the back surface of the transparent substrate has a plurality of sets of fourth parallel lines having a line interval L b2 , and at least two sets of these parallel lines do not cross each other and are arranged larger than L b2. Are arranged at intervals,
Further, the third parallel line and the fourth parallel line intersect at an angle β,
When viewed through the transparent substrate, the first parallel lines on the front surface and the third parallel lines on the back surface do not cross each other, and the second parallel lines on the front surface and the back surface of the third
8).
When viewed through the transparent substrate, the parallel lines on both sides of the transparent substrate are overlapped to form a lattice pattern, and the line spacing of each line segment constituting the lattice pattern is in the range of 100 μm to 400 μm. 2. The pattern according to 1 above, wherein the pattern has a standard deviation of less than 30.
9.
9. The pattern according to 8, wherein the set of two parallel lines adjacent to each other in the lattice pattern is alternately assigned to each side of the transparent substrate.
10.
9. The pattern according to 8 above, wherein in the lattice pattern, a set of two parallel lines adjacent to each other is alternately assigned to each of a plurality of sets on both surfaces of the transparent substrate.
11.
A patterned base material comprising a transparent base material comprising the pattern according to any one of 1 to 10 above.
12
A touch panel comprising the patterned substrate according to 11 above.
(イ)各線分31、32の幅をW1、W2としたときに、W1≦10μm、かつW2≦10μmであること。
(ウ)各線分31、32間の距離をIとしたときに、50μm≦I≦5000μmであること。
(エ)各線分31、32の高さをH1、H2としたときに、50nm<H1<5μm、かつ50nm<H2<5μmであること。 (A) When the height of each
(A) When the widths of the
(C) When the distance between the
(D) When the heights of the
両面の加工処理が同じであり、両面の表面エネルギー差が5%以内であるPETフィルム(透明基材1)の各面に、インクジェット法を用いて、下記の条件で、図3に示したものと同様のパターンを形成した。 (Example 1)
What is shown in FIG. 3 under the following conditions using the inkjet method on each surface of a PET film (transparent substrate 1) having the same processing on both surfaces and having a surface energy difference of 5% or less on both surfaces. A similar pattern was formed.
インクジェット法により、透明基材1の表面に、導電性材料を含むライン状液体を付与し、コーヒーステイン現象を生起させて、表面の平行線3を形成した。 <Conditions for forming parallel lines on the surface>
By the inkjet method, a line-like liquid containing a conductive material was applied to the surface of the
インクジェット法により、透明基材1の裏面に、導電性材料を含むライン状液体を付与し、コーヒーステイン現象を生起させて、裏面の平行線4を形成した。 <Conditions for forming parallel lines on the back>
By the inkjet method, a line-like liquid containing a conductive material was applied to the back surface of the
以上のようにして、透明基材1の両面に、平行線3、4を含むパターンを形成した後、さらに、後処理として、該平行線の焼成を行い、次いで該平行線3、4にメッキを施して、図3に示したものと同様のパターンを備えたパターン付き基材を得た。 <Post-processing>
After forming a pattern including
実施例1において、インクの着弾位置を変更して、図5に示したものと同様のパターンを備えたパターン付き基材を得た。 (Example 2)
In Example 1, the ink landing position was changed to obtain a patterned substrate having the same pattern as that shown in FIG.
実施例1で用いたものと同様のPETフィルム(透明基材1)の各面に、インクジェット法を用いて、下記の条件で、図6に示したものと同様のパターンを形成した。 (Example 3)
A pattern similar to that shown in FIG. 6 was formed on each surface of a PET film (transparent substrate 1) similar to that used in Example 1 using the inkjet method under the following conditions.
インクジェット法により、透明基材1の表面に、ライン状液体を付与し、コーヒーステイン現象を生起させて、第1の平行線3Aを形成した。ライン状液体の付与間隔は、得られる平行線の配置間隔(図6中、X1で示す間隔に相当)が、600μmとなるように調整した。平行線の線間隔は200μmとした。 <Conditions for forming parallel lines on the surface>
A line-like liquid was applied to the surface of the
インクジェット法により、透明基材の裏面に、ライン状液体を付与し、コーヒーステイン現象を生起させて、第3の平行線4Aを形成した。ライン状液体の付与間隔は、得られる平行線の配置間隔が、600μmとなるように調整した。平行線の線間隔は200μmとした。 <Conditions for forming parallel lines on the back>
By the inkjet method, a line-like liquid was applied to the back surface of the transparent substrate to cause the coffee stain phenomenon, thereby forming the third
以上のようにして、透明基材1の両面に、平行線3A、3B、4A及び4Bを含むパターンを形成した後、さらに、後処理として、該平行線の焼成を行い、次いで該平行線にメッキを施して、図6に示したものと同様のパターンを備えたパターン付き基材を得た。 <Post-processing>
After forming the pattern including the
実施例3において、インクの着弾位置を変更して、図7に示したものと同様のパターンを備えたパターン付き基材を得た。 Example 4
In Example 3, the ink landing position was changed to obtain a patterned substrate having the same pattern as that shown in FIG.
実施例3において、第1~第4の平行線を形成する順番を変更し、第1の平行線→第2の平行線→第4の平行線→第3の平行線の順番で形成することにより、図9及び図10に示したものと同様のパターンを備えたパターン付き基材を得た。 (Example 5)
In the third embodiment, the order of forming the first to fourth parallel lines is changed, and the first parallel lines, the second parallel lines, the fourth parallel lines, and the third parallel lines are formed in this order. Thus, a substrate with a pattern having the same pattern as that shown in FIGS. 9 and 10 was obtained.
実施例3において、図11に示したものと同様に長尺ヘッド6を用いて、平行線を形成した。 (Example 6)
In Example 3, parallel lines were formed using the
2:(ライン状)液体
3:平行線
31、32:線分
4:平行線
41、42:線分
5:インクジェットヘッド
6:長尺ヘッド 1: Transparent base material 2: (Line-shaped) liquid 3:
Claims (12)
- 機能性を持つパターンであって、
透明基材の両面に、
導電性材料を含有する2本1組の平行線を1組以上有し、
何れか一方の面の前記1組以上の平行線は、導電性材料が液体の動きにより分離された結果形成されたものであるパターン。 A pattern with functionality,
On both sides of the transparent substrate,
Have one or more sets of two parallel lines containing conductive material,
The one or more sets of parallel lines on any one of the surfaces is a pattern formed as a result of the conductive material being separated by the movement of the liquid. - 前記透明基材の表面と裏面のそれぞれに、導電性材料が液体の動きにより分離された結果形成された平行線を1組以上備える請求項1記載のパターン。 The pattern according to claim 1, comprising at least one set of parallel lines formed on each of the front and back surfaces of the transparent substrate as a result of separation of the conductive material by the movement of the liquid.
- 前記透明基材の表面と裏面との間で、前記平行線の配置が相互に調整されている請求項1又は2記載のパターン。 The pattern according to claim 1 or 2, wherein the arrangement of the parallel lines is mutually adjusted between the front surface and the back surface of the transparent substrate.
- 前記透明基材の表面に形成した前記平行線のピッチに対して、前記透明基材の裏面に形成した前記平行線のピッチが、±20%の範囲になるように調整されている請求項1~3の何れかに記載のパターン。 2. The pitch of the parallel lines formed on the back surface of the transparent substrate is adjusted to be within a range of ± 20% with respect to the pitch of the parallel lines formed on the surface of the transparent substrate. The pattern according to any one of 1 to 3.
- 前記透明基材の表面に、線間隔Laの平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いに配置間隔Laで配置されており、
前記透明基材の裏面に、線間隔Lbの平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いに配置間隔Lbで配置されており、
前記透明基材を通して見たときに、表面の前記少なくとも2組の平行線と、裏面の前記少なくとも2組の平行線とが、互いに交差しない請求項1~4の何れかに記載のパターン。 On the surface of the transparent substrate, the parallel lines of the line spacing L a has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged at the arrangement interval L a from one another,
The back surface of the transparent substrate, the parallel lines of the line spacing L b has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged at the arrangement interval L b from each other,
The pattern according to any one of claims 1 to 4, wherein when viewed through the transparent substrate, the at least two sets of parallel lines on the front surface and the at least two sets of parallel lines on the back surface do not intersect each other. - 前記透明基材の表面に、線間隔Laの平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLaより大きい配置間隔で配置されており、
前記透明基材の裏面に、線間隔Lbの平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLbより大きい配置間隔で配置されており、
前記透明基材を通して見たときに、表面の前記少なくとも2組の平行線と、裏面の前記少なくとも2組の平行線とが、互いに交差しない請求項1~4の何れかに記載のパターン。 On the surface of the transparent substrate, the parallel lines of the line spacing L a has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged in a L a larger arrangement intervals And
The back surface of the transparent substrate, the parallel lines of the line spacing L b has a plurality of sets, among these at least two sets of parallel lines, not intersect each other and are arranged in a L b larger arrangement intervals And
The pattern according to any one of claims 1 to 4, wherein when viewed through the transparent substrate, the at least two sets of parallel lines on the front surface and the at least two sets of parallel lines on the back surface do not intersect each other. - 前記透明基材の表面に、線間隔La1の第1の平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLa1より大きい配置間隔で配置されており、
さらに、前記透明基材の表面に、線間隔La2の第2の平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLa2より大きい配置間隔で配置されており、
さらに、前記第1の平行線と前記第2の平行線は、角度αで交差しており、
前記透明基材の裏面に、線間隔Lb1の第3の平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLb1より大きい配置間隔で配置されており、
さらに、前記透明基材の裏面に、線間隔Lb2の第4の平行線を複数組有し、これらのうち少なくとも2組の平行線は、互いに交差せず、かつ、互いにLb2より大きい配置間隔で配置されており、
さらに、前記第3の平行線と前記第4の平行線は、角度βで交差しており、 前記透明基材を通して見たときに、表面の前記第1の平行線と、裏面の前記第3の平行線は、互いに交差せず、かつ、表面の前記第2の平行線と、裏面の前記第4の平行線は、互いに交差しない請求項1~4の何れかに記載のパターン。 The surface of the transparent substrate has a plurality of sets of first parallel lines having a line interval L a1 , and at least two sets of these parallel lines do not intersect each other and are arranged at intervals greater than L a1. Has been placed,
Further, the surface of the transparent substrate has a plurality of sets of second parallel lines having a line interval La2 , and at least two sets of these parallel lines do not cross each other and are larger than each other La2 Are arranged at intervals,
Furthermore, the first parallel line and the second parallel line intersect at an angle α,
The back surface of the transparent substrate has a plurality of sets of third parallel lines having a line interval L b1 , and at least two of these parallel lines do not intersect each other and are arranged at intervals greater than L b1. Has been placed,
Further, the back surface of the transparent substrate has a plurality of sets of fourth parallel lines having a line interval L b2 , and at least two sets of these parallel lines do not cross each other and are arranged larger than L b2. Are arranged at intervals,
Further, the third parallel line and the fourth parallel line intersect at an angle β, and when viewed through the transparent substrate, the first parallel line on the front surface and the third parallel line on the back surface The pattern according to any one of claims 1 to 4, wherein said parallel lines do not intersect each other, and said second parallel lines on the front surface and said fourth parallel lines on the back surface do not intersect each other. - 前記透明基材を通して見たときに、前記透明基材の両面の前記平行線が重なり合って格子状パターンが呈され、該格子状パターンを構成する各線分の線間隔は、100μm~400μmの範囲であり、かつ標準偏差が30未満である請求項1記載のパターン。 When viewed through the transparent substrate, the parallel lines on both sides of the transparent substrate are overlapped to form a lattice pattern, and the line spacing of each line segment constituting the lattice pattern is in the range of 100 μm to 400 μm. The pattern according to claim 1, wherein the pattern has a standard deviation of less than 30.
- 前記格子状パターンにおいて、互いに隣接する2本1組の前記平行線は、前記透明基材の両面に、1組ずつ交互に割り当てられている請求項8記載のパターン。 9. The pattern according to claim 8, wherein in the lattice pattern, a set of two parallel lines adjacent to each other is alternately assigned to each side of the transparent base material.
- 前記格子状パターンにおいて、互いに隣接する2本1組の前記平行線は、前記透明基材の両面に、複数組ずつ交互に割り当てられている請求項8記載のパターン。 9. The pattern according to claim 8, wherein in the lattice pattern, a set of two parallel lines adjacent to each other is alternately assigned to a plurality of sets on both surfaces of the transparent substrate.
- 請求項1~10の何れかに記載のパターンを透明基材に備えてなるパターン付き基材。 A patterned substrate comprising the transparent substrate and the pattern according to any one of claims 1 to 10.
- 請求項11記載のパターン付き基材を備えたタッチパネル。 A touch panel comprising the substrate with a pattern according to claim 11.
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