JP5174575B2 - Touch panel - Google Patents

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Publication number
JP5174575B2
JP5174575B2 JP2008198419A JP2008198419A JP5174575B2 JP 5174575 B2 JP5174575 B2 JP 5174575B2 JP 2008198419 A JP2008198419 A JP 2008198419A JP 2008198419 A JP2008198419 A JP 2008198419A JP 5174575 B2 JP5174575 B2 JP 5174575B2
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Prior art keywords
electrode
line
substrate
electrodes
formed
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JP2008198419A
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JP2010039537A (en
Inventor
勝正 鴻野
英詔 水元
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グンゼ株式会社
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Priority to JP2008198419A priority Critical patent/JP5174575B2/en
Priority claimed from CN200980130592.6A external-priority patent/CN102112949B/en
Publication of JP2010039537A publication Critical patent/JP2010039537A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Description

  The present invention relates to a touch panel disposed on the front surface of a display of a computer or electronic device.

  In recent years, in computers and electronic devices, development of operations using display on a display without using push buttons has been active. For this operation, a transparent touch panel is arranged on the front surface of the display to detect the touch position. As the types of touch panels, there are a resistive film type, a surface acoustic wave type, an infrared type, and the like, and there is also a capacitance type that detects a position by a change in capacitance due to finger touch or proximity. For example, Patent Document 1 describes a capacitive touch panel having matrix-like electrodes (a two-layer structure in the X direction and the Y direction).

  The conventional capacitive touch panel 100 shown in FIG. 10 has a first electrode 104 formed on one surface of a single dielectric substrate 102 and a second electrode 108 formed on the other surface. Each of the first electrode 104 and the second electrode 108 is a linear electrode and faces in a direction orthogonal to each other. Above the first electrode 104 is a cover film 112 made of a transparent resin, and the cover film 112 is in close contact with the first electrode 104 by an acrylic transparent adhesive 110 or an adhesive. The second electrode 108 is in close contact with the display 18 with an acrylic transparent adhesive 114 or an adhesive.

  When the operator's finger is brought close to the touch panel 100, the capacitance of the portion where the first electrode 104 and the second electrode 108 intersect changes. The capacitive touch panel 100 detects the change in capacitance and obtains coordinates.

  Conventionally, the first electrode 104 and the second electrode 108 use a transparent conductive film such as ITO (Indium Tin Oxide) on the surface of the dielectric substrate 102. ITO has a high resistance value, and is generally 200Ω / □ to 1000Ω / □. When the area of the touch panel becomes large or when touched with a glove or the like, sufficient sensitivity may not be obtained, and the touched coordinates may not be obtained. Furthermore, since indium contained in ITO is a rare element, it is desired to avoid using it as much as possible.

  Patent Document 2 discloses a capacitive touch panel that does not use ITO. By making the electrode made of copper or a copper alloy into a mesh shape, the transmission efficiency of the electrode is set to 70% or more. As for the mesh, squares and the like are arranged on the entire surface of the substrate. However, the electrode of Patent Document 2 is only on one surface of the substrate. As described with reference to FIG. 10, when the electrodes of Patent Document 2 are arranged on both surfaces of the substrate, moire occurs when the arrangement of the electrodes slightly deviates. It is required to have a very high positional accuracy when forming the electrode, and it is difficult to manufacture practically.

JP-T-2006-511879 JP 2006-344163 A

  An object of the present invention is to provide a touch panel in which moire does not occur in a touch panel in which two layers of electrodes not using ITO are bonded.

  The touch panel includes a substrate, a plurality of first electrodes formed on one surface of the substrate and arranged at regular intervals, a touch panel formed on the other surface of the substrate, arranged at regular intervals, and the plurality of first electrodes. And a plurality of second electrodes in a lattice shape.

  In the touch panel of the present invention, in the touch panel described above, the first electrode and the second electrode each form a mesh with a plurality of conductor lines, and the direction of the conductor lines is oblique to the black matrix of the display.

  A conductor line of the first electrode, comprising: a first auxiliary line formed between the first electrodes on the one surface; and a second auxiliary line formed between the second electrodes on the other surface. The first auxiliary line, the conductor line of the second electrode, and the second auxiliary line form a single lattice shape with uniform spacing.

  The first electrode conductor line, the first auxiliary line, or both formed on one surface of the substrate is the second electrode conductor line, the second auxiliary line, or both formed on the other surface of the substrate. One line is formed.

  In addition, the other touch panel includes a first substrate, a second substrate facing the first substrate, and a plurality of first touch panels formed on the surface facing the second substrate in the first substrate and arranged at regular intervals. One electrode and a plurality of second electrodes formed on a surface opposite to the first substrate in the second substrate, arranged at regular intervals, and in a lattice form with the plurality of first electrodes.

  In the touch panel of the present invention, in the touch panel described above, the first electrode and the second electrode each form a mesh with a plurality of conductor lines, and the direction of the conductor lines is oblique to the black matrix of the display.

A first auxiliary line formed between the first electrodes on the opposing surface of the first substrate;
A second auxiliary line formed between the second electrodes on the opposite surface of the second substrate;
The first electrode conductor line, the first auxiliary line, the second electrode conductor line, and the second auxiliary line form a single lattice shape with uniform spacing.

The conductor line of the first electrode formed on the first substrate, the first auxiliary line, or both are 1 in the conductor line of the second electrode formed on the second substrate, the second auxiliary line, or both. A line of books is formed.

  In the present invention, the first auxiliary line is provided between the first electrodes, and the second auxiliary line is provided between the second electrodes, whereby a lattice shape is formed by the electrodes and the auxiliary lines. The lattice shape is inclined with respect to the black matrix, and moiré is unlikely to occur. Furthermore, since the lattice shape is not formed on each surface, moire is unlikely to occur. In addition, by making the lattice-shaped intervals equal, it is possible to prevent the occurrence of moire on the touch panel. As described above, a structure in which a plurality of moiré is less likely to occur is employed. In addition, since the electrode has a mesh shape, a signal can be applied to the entire electrode even if a part of the disconnection occurs, and a deterioration in manufacturing yield can be prevented.

  The touch panel of the present invention will be described with reference to the drawings. The touch panel is a capacitive touch panel attached to the front surface of the display. The display is formed with a black matrix having a grid pattern in the vertical and horizontal directions.

  A touch panel 10 shown in FIG. 1 includes a substrate 12, a first electrode 14 formed on one surface of the substrate 12, and a second electrode 16 formed on the other surface of the substrate 12. In the description, it is assumed that one surface of the substrate 12 is upward, the other surface of the substrate 12 is downward, and the other surface of the substrate 12 is a surface to be attached to the display 18.

  The substrate 12 is a dielectric substrate. Examples of the material of the substrate 12 include transparent materials such as glass, polyester, polyethylene terephthalate, polycarbonate, polymethyl methacrylate, and polyethylene naphthalate. In the case of glass, the thickness is about 0.1 to 2 mm, and in the case of a plastic film, the thickness is about 10 to 2000 μm.

  As shown in FIG. 2, the first electrode 14 and the second electrode 16 are arranged at regular intervals. The first electrode 14 and the second electrode 16 are oriented in directions orthogonal to each other, and the first electrode 14 and the second electrode 16 form a lattice shape as shown in FIG.

  The first electrode 14 and the second electrode 16 each have a plurality of conductor lines, and a mesh is formed by the conductor lines. The conductor lines are the long lines 20a and 20b and a plurality of short lines 22a and 22b intersecting the long lines 20a and 20b. The long lines 20a and 20b and the short lines 22a and 22b are directed obliquely with respect to the black matrix of the display 18, respectively. This is because moire tends to occur when the conductor lines and the black matrix are oriented in the same direction.

The long lines 20a and 20b meander at regular lengths, and the angles of the meandered portions are the same. The meandering angle is an angle (bias angle) at which moire does not occur with respect to the vertical axis or horizontal axis of the display 18. Long lines 2 0 a and the short lines 22b of the second electrode 16 of the first electrode 14 is oriented in the same direction, the short line 22a and the length line 20b of the second electrode 16 of the first electrode 14 is oriented in the same direction. The line widths of the long lines 20a and 20b and the short lines 22a and 22b are, for example, about 10 to 30 μm. The pitch of the long lines 20a and 20b is about 200 to 400 μm. Since the line width is very thin and the pitch is sufficient with respect to the line width, the electrodes 14 and 16 do not stand out and the display quality of the display 18 is unlikely to deteriorate.

  The first electrode 14 and the second electrode 16 form a rhombus as shown in FIG. In this description, the lattice shape is a lattice shape in which diamonds are formed instead of squares. The angle at which the long lines 20a and 20b meander are appropriately selected depending on the size of the display 18 and the like. By meandering, no conductor wire is formed in the same direction as the black matrix. As a result, a first auxiliary line 24 and a second auxiliary line 26 described later are also inclined with respect to the black matrix.

Moreover, even if one long line 20a, 20b or short line 22a, 22b is cut at the time of manufacturing by making it mesh-like, an electric signal can be applied by another long line 20a, 20b or short line 22a, 22b, It is possible to prevent the production yield from being lowered. The volume resistance value of the electrodes constituting the first electrode 14 and the second electrode 16 is 0.5 × 10 −5 to 5 × 10 −5 Ω · cm, which is lower than that of ITO. Further, the volume resistance value, the line width, and the height are adjusted so that the inter-terminal resistance value of the electrodes 16x and 14y is 5 kΩ or less, preferably 1 kΩ or less.

  The distance between the short lines 22a and 22b is made larger than the distance between the long lines 20a and 20b. The second electrode 16 is disposed between the short lines 22a of the first electrode 14. Further, the first electrode 14 is arranged between the short lines 22 b of the second electrode 16. The short wires 22a of the first electrode 14 and the long wires 20b of the second electrode 16 are arranged so that the conductor wires are arranged at equal intervals. The long wire 20a of the first electrode 14 and the short wire 22b of the second electrode 16 are arranged such that their conductor lines are arranged at equal intervals. Since the short wire 22a of the first electrode 14 and the second electrode 16 do not overlap, moire does not occur. Further, since the short line 22b of the second electrode 16 and the first electrode do not overlap, moire does not occur.

  The first electrode 14 and the second electrode 16 are formed by printing with ink containing conductive nanoparticles. The conductive nanoparticles include silver, gold, platinum, palladium, copper, carbon, or mixtures thereof. The average particle size of the nanoparticles is 2 μm or less, preferably 200 to 500 nm, and the particle size is smaller than that of conventional micron particles. Even when the line width of the electrodes 14 and 16 is 100 μm or less, the particle diameter of the nanoparticles is sufficiently smaller than the line width of the electrodes 14 and 16, so that the conductive electrodes 14 and 16 can be formed. Examples of the ink binder include polyester resin. The usage-amount of a binder is 1-20 weight part with respect to 100 weight part of electroconductive nanoparticles, Preferably it is 3-10 weight part. As a solvent for the ink, those that disperse the conductive nanoparticles well are preferable, and a solvent having a boiling point of about 100 to 300 ° C., for example, toluene having a boiling point of 110 ° C. can be mentioned. Since the boiling point of the solvent is relatively low, the ink can be baked at a relatively low temperature after printing on the substrate 12, and the thermal load on the substrate 12 can be reduced. The ink is dispersed for the nanoparticles. As a material for the electrodes 14 and 16, ITO containing indium which is a rare element is not used. The cost of the electrode material can be reduced.

  In the present invention, a plurality of first auxiliary lines 24 and a plurality of second auxiliary lines 26 are provided. The first auxiliary line 24 is formed on one surface of the substrate 12, and the second auxiliary line 26 is formed on the other surface of the substrate 12. The first auxiliary line 24 is formed between the first electrodes 14, and the second auxiliary line 26 is formed between the second electrodes 16. The material of the first auxiliary line 24 and the second auxiliary line 26 is the same as that of the first electrode 14 and the like. The first auxiliary line 24 and the second auxiliary line 26 are not connected to the first electrode 14 or the second electrode 16.

  FIG. 4 shows an enlarged view of the electrodes 14 and 16 and the auxiliary lines 24 and 26. The white portion is the first electrode 14 and the first auxiliary line 24 formed on one surface of the substrate 12, and the black portion is the second electrode 16 and the second auxiliary line 26 formed on the other surface of the substrate 12. It is. The first auxiliary line 24 faces in the same direction as the short line 22b of the second electrode 16, and has the same length as the interval d2 between the second electrodes 16. The second auxiliary line 26 faces in the same direction as the short line 20a of the first electrode 14, and has the same length as the interval d1 between the first electrodes 14. The first auxiliary line 24 and the second auxiliary line 26 intersect at their centers.

  When the touch panel 10 is viewed from above or below, the first auxiliary line 24 and the short line 22b of the second electrode 16 form a single line. The first auxiliary lines 24 are formed on one surface, and the short lines 22b of the second electrode 16 are formed on the other surface and are not in contact with each other, but are arranged so as to be linear. Similarly, the second auxiliary line 26 and the short line 22a of the first electrode 14 are arranged in a linear shape. Further, the long line 20 a of the first electrode 14, the first auxiliary line 24, and the short line 22 b of the second electrode 16 are arranged at equal intervals, the long line 20 b of the second electrode 16, the second auxiliary line 26, and the short line 22 a of the first electrode 14. Are arranged at equal intervals. By arranging them at equal intervals, a lattice can be formed by the first electrode 14 or the like. Although it is a single line as described above, it is meandering so that a lattice shape can be formed together with the electrodes 14 and 16. One lattice shape is formed by the first electrode 14 and the second electrode 16 formed on the two surfaces, and the two lattice shapes are not superimposed and do not look like one lattice shape. When two lattice shapes are overlapped, moiré is generated if they are slightly shifted, but moiré can be prevented according to the present invention.

  By forming apparent lines as described above and arranging the lines at regular intervals, grid-like conductor lines are formed on the touch panel 10 as shown in FIG. When the first electrode 14 and the like are superposed, they are in a lattice shape, which is different from the conventional Patent Document 2. Even if the position of the first electrode 14 or the like is slightly deviated, it is only a slightly deformed lattice shape, and moire is less likely to occur. Compared with the arrangement of the electrodes of Patent Document 2 on both sides of the substrate, the manufacturing yield can be improved.

  In addition, the cover film 30 is adhered to one surface side of the substrate 12 using an acrylic transparent adhesive 28. The first electrode 14 and the first auxiliary line 24 are protected by the cover film 30. Instead of the cover film 30, a transparent resin may be coated. The other surface side of the substrate 12 is adhered to the surface of the display 18 using an acrylic transparent adhesive 32. Terminals 14y and 16x are provided at the ends of the electrodes 14 and 16, and lead wires (not shown) are connected from the terminals 14y and 16x. The lead-out wiring is connected to a control circuit that detects voltage application and touch position to the electrodes 14 and 16. The touch position is detected by applying a predetermined voltage to the electrodes 14 and 16 and detecting an electrical change when the finger is brought close to the touch panel 10.

  A method for manufacturing the touch panel 10 will be described. (1) Prepare the above-described substrate 12 and ink. The substrate 12 is cut into a desired shape and washed as necessary. (2) The first electrode 14 and the first auxiliary line 24 are formed by printing ink on one surface of the substrate 12. (3) The second electrode 16 and the second auxiliary line 26 are formed by printing ink on the other surface of the substrate 12. (4) An acrylic transparent adhesive 28 is applied to one side of the substrate 12 and the cover film 30 is adhered to the one side of the substrate 12.

  The printing of (2) and (3) is performed by screen printing or ink jet printing. Just by screen printing or ink jet printing, the specific resistance of the ink is high and there is no electrical conductivity. After printing, the ink is made conductive by baking the ink in a drying oven. The vacuum film formation and etching necessary for the production of ITO are not required, and the electrodes 14 and 16 can be generated very easily.

  Further, lead wires are formed from the ends of the electrodes 14 and 16 with silver ink or the like, and the electrodes 14 and 16 are connected to the control circuit of the touch panel via the lead wires. If the lead lines are formed by screen printing or the like using the same ink as the electrodes, the lead lines can be formed when the electrodes 14 and 16 are formed.

  The completed touch panel 10 is attached to the front surface of the display 18 using an acrylic transparent adhesive 32 or the like. If necessary, alignment marks are provided at corners of the substrate 12 and the display 18 to perform alignment.

  Next, another touch panel will be described. The description of the same configuration as the touch panel described above may be omitted.

  A touch panel 10b shown in FIG. 5 includes a first substrate 12a, a second substrate 12b facing the first substrate 12a, a plurality of first electrodes 14 formed on one surface of the first substrate 12a, and a second substrate 12b. A plurality of second electrodes 16 formed on one surface are provided. One surface of the first substrate 12a faces the other surface of the second substrate 12b. One surface of the second substrate 12 b is a surface attached to the display 18. The 1st electrode 14 and the 2nd electrode 16 are the same as that of FIGS. 2-4, and are the mesh-like electrodes comprised by long line 20a, 20b and short line 22a, 22b. The materials of the substrates 12a and 12b and the electrodes 14 and 16 are the same as those of the touch panel 10 described above.

  The first auxiliary line 24 is formed on one surface of the first substrate 12a, and the second auxiliary line 26 is formed on one surface of the second substrate 12b. The first auxiliary line 24 is formed between the first electrodes 14, and the second auxiliary line 26 is formed between the second electrodes 16. The first auxiliary line 24 faces in the same direction as the short line 22b of the second electrode 16, and has the same length as the interval d2 between the second electrodes 16. The second auxiliary line 26 faces the same direction as the short line 22a of the first electrode 14, and has the same length as the interval d1 between the first electrodes 14. The material of the first auxiliary line 24 and the second auxiliary line 26 is the same as that of the first electrode 14 and the like.

  Similar to the previous touch panel 10, the first auxiliary line 24 and the short line 22 b of the second electrode 16 form a single line. They are non-contact with each other, but are apparently linear. Similarly, the second auxiliary line 26 and the short line 20a of the first electrode 14 have a single line shape.

  As shown in FIG. 5, the first substrate 12a and the second substrate 12b are bonded using a transparent acrylic transparent adhesive 34 or the like. The second substrate 12b and the second electrode 16 are bonded to the display 18 using a transparent acrylic transparent adhesive 36 or the like.

  In addition, lead wires (not shown) are connected to the terminals 14 y and 16 x of the electrodes 14 and 16. The lead-out wiring is connected to a control circuit that detects voltage application and touch position to the electrodes 14 and 16. A touch position is detected by applying a predetermined voltage to the electrodes 14 and 16 and detecting an electrical change when the finger is brought close to the touch panel 10b.

  A method for manufacturing the touch panel 10b will be described. (1) Prepare the above-described substrates 12a and 12b and ink. The substrates 12a and 12b are cut into a desired shape and washed as necessary. (2) The first electrode 14 and the first auxiliary line 24 are formed by printing ink on one surface of the first substrate 12a. (3) The second electrode 16 and the second auxiliary line 26 are formed by printing ink on one surface of the second substrate 12b. (4) The first substrate 12a and the second substrate 12b are bonded with an acrylic transparent adhesive 34 so that the other surface side of the second substrate 12b is disposed on the one surface side of the first substrate 12a.

  The printing of (2) and (3) is performed by screen printing or ink jet printing. It is very easy to print. After printing, the ink is made conductive by baking the ink in a drying oven. The completed touch panel 10b is attached to the front surface of the display 18 using an acrylic transparent adhesive 36 or the like.

  As described above, the touch panels 10 and 10b of the present invention form the auxiliary lines 24 and 26 between the electrodes 14 and 16. A lattice shape with a uniform interval is formed by these electrodes 14 and the like, and moire is less likely to appear. In addition, a grid-like electrode is not formed on only one surface as in Patent Document 2, but a grid is formed on both sides of the substrate. Even if the positional accuracy of the electrode 14 or the like is lowered, moire is hardly expressed, and the manufacturing yield can be improved.

  As mentioned above, although embodiment of this invention was described, embodiment of this invention is not limited to said embodiment. For example, the display 18 may be regarded as a first substrate, and the first electrode 14 and the first auxiliary line 24 may be formed on the surface of the display 18 (FIG. 6). The second electrode 16 and the second auxiliary line 26 are formed on one surface of the second substrate 12 c, and the other surface of the second substrate 12 c is bonded to the display 18 with an acrylic transparent adhesive 38. The cover film 30 is bonded to one surface of the second substrate 12c with an acrylic transparent adhesive 28 to protect the second electrode 16 and the second auxiliary line 26. The first electrode 14, the first auxiliary line 24, the second electrode 16, the second auxiliary line 26, the second substrate 12c, and the like have the same configuration as in the above embodiment.

  As shown in FIGS. 7A and 7B, a first electrode 14b and a second electrode 16b in which a plurality of mesh shapes are connected may be used. The first electrode 14b and the second electrode 16b are arranged at equal intervals. A first auxiliary line 24b connected to the first electrode 14b is provided between the first electrodes. A second auxiliary line 26b connected to the second electrode 16b is provided between the second electrodes. A first electrode 14b, a second electrode 16b, and the like are provided on one surface and the other surface of the substrate 12 of FIG. 1 or the first substrate 12a and the second substrate 12b of FIG. When superposed in the same manner as described above, a lattice shape is formed as shown in FIG. As in FIG. 2, electrodes 16x and 14y (not shown) are connected directly or indirectly to the ends of the first electrode 14b and the second electrode 16b. As shown in FIGS. 7 and 8, if one lattice shape is formed and the lines constituting the lattice shape are inclined with respect to the black matrix, moire is less likely to occur.

  In the case of FIG. 8, the conductor lines and the auxiliary lines have an inclination of 45 degrees with respect to the black matrix. However, moire appears at 45 degrees depending on the display. Adjust the tilt angle to be difficult.

  The structure of the electrodes 14 and 16 and the auxiliary lines 24 and 26 described with reference to FIG. 2 is an example. (1) The conductor lines are inclined with respect to the black matrix of the display. One grid shape is formed via the substrate 12 between the two sides or the conductor wires formed on the two substrates 12a and 12b, and (3) a conductor wire when forming one grid shape. It is important that they do not overlap even if they intersect.

  In order to confirm the effect of the present invention, the electrode e shown in FIG. 9 was formed of ITO and a net-like silver electrode. The electrode e has a width of 3 mm and a length of 30 cm. In the case of ITO, the inter-pattern resistance of the electrode e was about 30 kΩ, and in the case of the silver electrode, it was about 52Ω. The sensitivity of the seventh electrode e from the top was compared. A change in capacitance was also detected from the terminal y by applying a predetermined voltage from the terminal y at the left end of the electrode e. At the point O of 0 cm from the terminal y, there is almost no difference in sensitivity. At the point P of 15 cm from the terminal y, the sensitivity of the ITO electrode was 1/3 compared to the mesh silver electrode, and at the point Q of 30 cm, the sensitivity was 1/5. The change in sensitivity of the mesh-like silver electrode was very small from point O to Q. In the case of an ITO electrode, the sensitivity is very small at the points P and Q of 15 cm and 30 cm. As described above, the touch panel of the present invention can be easily increased in size as compared with the case where the ITO electrode is used.

  The present invention can be implemented in variously modified, modified, and modified forms based on the knowledge of those skilled in the art without departing from the spirit of the present invention.

It is a figure which shows the partial cross section of a touchscreen. It is a figure which shows the electrode and auxiliary line of a touchscreen, (a) shows a 1st electrode and a 1st auxiliary line, (b) shows a 2nd electrode and a 2nd auxiliary line. It is a figure which shows the positional relationship of a 1st electrode, a 1st auxiliary line, a 2nd electrode, and a 2nd auxiliary line. FIG. 4 is a partially enlarged view of FIG. 3. It is a figure which shows the partial cross section of a touchscreen. It is a figure which shows the partial cross section of a touchscreen. It is a figure which shows the electrode and auxiliary line of a touchscreen, (a) shows a 1st electrode and a 1st auxiliary line, (b) shows a 2nd electrode and a 2nd auxiliary line. It is a figure which shows the positional relationship of the 1st electrode, 1st auxiliary line, 2nd electrode, and 2nd auxiliary line in FIG. It is a figure which shows the electrode used in order to perform a comparison with the electrode of a mesh shape, and the electrode of ITO. It is a figure which shows the conventional touch panel, (a) is a front view, (b) is XX sectional drawing of (a).

Explanation of symbols

10, 10b. 10c: Touch panel 12, 12a, 12b, 12c: Substrate 14, 14b, 16, 16b: Electrode 18: Display 20a, 20b: Long wire (conductor wire)
22a, 22b: Short wire (conductor wire)
24, 24b, 26, 26b: auxiliary lines 28, 32, 34, 36, 38: acrylic transparent adhesive 30: cover film

Claims (8)

  1. A substrate,
    A plurality of first electrodes formed on one surface of the substrate and arranged at regular intervals;
    A first auxiliary line formed between the first electrodes on the one surface;
    A plurality of second electrodes formed on the other surface of the substrate, arranged at regular intervals, and in a lattice form with the plurality of first electrodes;
    A second auxiliary line formed between the second electrodes on the other surface;
    A touch panel attached to the front of the display,
    The first electrode and the second electrode each form a mesh with a plurality of conductor wires,
    The conductor line of the first electrode, the first auxiliary line, the conductor line of the second electrode, and the second auxiliary line form a lattice shape in which the distance between the lines is uniform ,
    Conductor wires of the first electrode, the first auxiliary lines, the conductor lines of the second electrodes, the direction of the second auxiliary line Ri oblique direction der respect the black matrix of the display,
    The first electrode conductor line, the first auxiliary line, or both formed on one surface of the substrate is the second electrode conductor line, the second auxiliary line, or both formed on the other surface of the substrate. A touch panel in which one line is formed .
  2. The first electrode and the second electrode are each composed of a long line and a short line intersecting the long line,
    The long line of the first electrode and the short line of the second electrode are directed in the same direction, the long line of the second electrode and the short line of the first electrode are directed in the same direction,
    The touch panel according to claim 1, wherein the first electrode is disposed between the short lines of the second electrode, and the second electrode is disposed between the short lines of the first electrode .
  3. The touch panel according to claim 2, wherein the first auxiliary line faces in the same direction as the short line of the second electrode, and the second auxiliary line faces in the same direction as the short line of the first electrode .
  4. The touch panel according to claim 2 or 3, wherein the long lines of the first electrode and the second electrode meander at regular intervals.
  5. A first substrate;
    A second substrate facing the first substrate;
    A plurality of first electrodes formed on a surface facing the second substrate and arranged at regular intervals in the first substrate;
    A first auxiliary line formed between the first electrodes on the opposing surface of the first substrate;
    A plurality of second electrodes formed on a surface opposite to the first substrate in the second substrate, arranged at regular intervals, and in a lattice shape with the plurality of first electrodes;
    A second auxiliary line formed between the second electrodes on the opposite surface of the second substrate;
    A touch panel comprising:
    The first electrode and the second electrode each form a mesh with a plurality of conductor wires,
    The conductor line of the first electrode, the first auxiliary line, the conductor line of the second electrode, and the second auxiliary line form a lattice shape in which the distance between the lines is uniform,
    Conductor wires of the first electrode, the first auxiliary lines, the conductor lines of the second electrodes, the direction of the second auxiliary line Ri oblique direction der respect the black matrix of the display,
    The conductor line of the first electrode formed on the first substrate, the first auxiliary line, or both are 1 in the conductor line of the second electrode formed on the second substrate, the second auxiliary line, or both. A touch panel with a linear line of books .
  6. The first electrode and the second electrode are each composed of a long line and a short line intersecting the long line,
    The long line of the first electrode and the short line of the second electrode are directed in the same direction, the long line of the second electrode and the short line of the first electrode are directed in the same direction,
    The touch panel according to claim 5 , wherein the first electrode is disposed between the short lines of the second electrode, and the second electrode is disposed between the short lines of the first electrode .
  7. The touch panel according to claim 6 , wherein the first auxiliary line faces in the same direction as the short line of the second electrode, and the second auxiliary line faces in the same direction as the short line of the first electrode .
  8. The touch panel according to claim 6 or 7, wherein the long lines of the first electrode and the second electrode meander at regular intervals.
JP2008198419A 2008-07-31 2008-07-31 Touch panel Expired - Fee Related JP5174575B2 (en)

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CN201410841804.4A CN104635983B (en) 2008-07-31 2009-07-27 Soft-touch control
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10466838B2 (en) 2010-03-23 2019-11-05 Samsung Display Co., Ltd. Touch screen panel

Families Citing this family (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4869309B2 (en) * 2008-09-05 2012-02-08 三菱電機株式会社 Touch screen, touch panel and display device
US9244568B2 (en) 2008-11-15 2016-01-26 Atmel Corporation Touch screen sensor
JP2012014669A (en) 2009-11-20 2012-01-19 Fujifilm Corp Conductive sheet, method of using conductive sheet and electrostatic capacitive touch panel
JP4820451B2 (en) * 2009-11-20 2011-11-24 富士フイルム株式会社 Conductive sheet, method of using conductive sheet, and touch panel
US8766105B2 (en) 2009-11-20 2014-07-01 Fujifilm Corporation Conductive sheet, method for using conductive sheet, and capacitive touch panel
JP2011113149A (en) * 2009-11-24 2011-06-09 Fujifilm Corp Conductive sheet, use method for the same and capacitance type touch panel
KR101660564B1 (en) 2009-11-24 2016-09-27 후지필름 가부시키가이샤 Conductive sheet, usage method of conductive sheet and capacitive type touch panel
JP5123370B2 (en) * 2010-01-28 2013-01-23 富士フイルム株式会社 Conductive sheet, method of using conductive sheet, and capacitive touch panel
JP5638399B2 (en) * 2010-01-28 2014-12-10 富士フイルム株式会社 Conductive sheet, method of using conductive sheet, and capacitive touch panel
WO2011093420A1 (en) 2010-01-28 2011-08-04 富士フイルム株式会社 Conductive sheet, method for using conductive sheet, and touch panel
US9244573B2 (en) 2010-03-03 2016-01-26 Miraenanotech Co., Ltd. Capacitive touch panel including embedded sensing electrodes
KR101663210B1 (en) * 2010-04-28 2016-10-06 주식회사 동진쎄미켐 Touch panel and method for manufacturing the same
JP5613448B2 (en) * 2010-04-30 2014-10-22 富士フイルム株式会社 Touch panel and conductive sheet
KR101093651B1 (en) * 2010-05-25 2011-12-15 전자부품연구원 Touch panel using metallic thin-film and manufacture method thereof
JP4989749B2 (en) * 2010-05-28 2012-08-01 パナソニック株式会社 Touch panel device
JP5661533B2 (en) * 2010-05-28 2015-01-28 富士フイルム株式会社 Manufacturing method of conductive sheet and manufacturing method of touch panel
CN103069365B (en) 2010-06-11 2017-01-18 3M创新有限公司 Positional touch sensor with force measurement
JP5476237B2 (en) * 2010-07-05 2014-04-23 富士フイルム株式会社 Touch panel and conductive sheet
JP5345980B2 (en) * 2010-07-09 2013-11-20 富士フイルム株式会社 Transparent conductive substrate, conductive sheet for touch panel, and touch panel
JP5260607B2 (en) * 2010-09-01 2013-08-14 双葉電子工業株式会社 Touch sensor and fluorescent display tube
US9092102B2 (en) 2010-10-18 2015-07-28 Gunze Limited Touch switch
JP5647864B2 (en) * 2010-11-05 2015-01-07 富士フイルム株式会社 Touch panel
WO2013001920A1 (en) 2011-06-29 2013-01-03 Sharp Kabushiki Kaisha Touch sensor system and electronic device
JP5591094B2 (en) * 2010-12-17 2014-09-17 グンゼ株式会社 Touch switch
EP2724214B1 (en) 2011-06-22 2018-09-19 Sharp Kabushiki Kaisha Touch panel system and electronic device
WO2012176637A1 (en) 2011-06-22 2012-12-27 Sharp Kabushiki Kaisha Touch panel system and electronic device
JP5620019B2 (en) * 2011-07-12 2014-11-05 シャープ株式会社 Touch panel system and electronic device
WO2012176857A1 (en) 2011-06-22 2012-12-27 Sharp Kabushiki Kaisha Touch panel system and electronic device
US9465492B2 (en) 2011-06-22 2016-10-11 Sharp Kabushiki Kaisha Touch panel system and electronic device
CN103329642B (en) 2011-01-18 2018-01-02 富士胶片株式会社 Conducting film and the display device for being provided with the conducting film
JP2012163933A (en) * 2011-01-18 2012-08-30 Fujifilm Corp Conductive film and display device having the same
JP2012163951A (en) * 2011-01-18 2012-08-30 Fujifilm Corp Display device having conductive film and the conductive film
JP6092516B2 (en) * 2011-01-18 2017-03-08 富士フイルム株式会社 Conductive film and display device having the same
JP5531031B2 (en) 2011-01-18 2014-06-25 富士フイルム株式会社 Transparent electrode sheet, method for producing transparent electrode sheet, and capacitive touch panel using these transparent electrode sheets
WO2012099150A1 (en) * 2011-01-18 2012-07-26 富士フイルム株式会社 Conductive film and display apparatus provided with same
TWI567912B (en) * 2011-02-18 2017-01-21 富士軟片股份有限公司 Conductive sheet and touch panel
CN103380411B (en) * 2011-02-24 2016-10-05 富士胶片株式会社 Conducting strip and contact panel
EP2493077B1 (en) * 2011-02-24 2016-09-28 Miele & Cie. KG Operating device for a domestic appliance
JP5748509B2 (en) * 2011-03-04 2015-07-15 富士フイルム株式会社 Conductive sheet and touch panel
JP5740326B2 (en) * 2011-03-08 2015-06-24 富士フイルム株式会社 Matrix resistive touch panel
DE102011014748A1 (en) * 2011-03-22 2012-09-27 Polylc Gmbh & Co. Kg Laminated body, manufacturing method and use thereof
JP5670827B2 (en) * 2011-05-13 2015-02-18 富士フイルム株式会社 Conductive sheet and touch panel
JP5675491B2 (en) 2011-05-13 2015-02-25 富士フイルム株式会社 Conductive sheet and touch panel
JP5839541B2 (en) * 2011-05-13 2016-01-06 富士フイルム株式会社 Conductive sheet and touch panel
JP5809846B2 (en) * 2011-05-13 2015-11-11 富士フイルム株式会社 Conductive sheet and touch panel
JP5350437B2 (en) 2011-06-27 2013-11-27 シャープ株式会社 Touch sensor system
JP5539269B2 (en) 2011-06-27 2014-07-02 シャープ株式会社 Capacitance value distribution detection method, capacitance value distribution detection circuit, touch sensor system, and information input / output device
JP5734243B2 (en) * 2011-07-11 2015-06-17 富士フイルム株式会社 Conductive sheet, touch panel and display device
JP5681674B2 (en) * 2011-07-11 2015-03-11 富士フイルム株式会社 Conductive sheet, touch panel and display device
WO2013008826A1 (en) 2011-07-11 2013-01-17 富士フイルム株式会社 Conductive sheet, touch panel, display device, method for producing said conductive sheet, and recording medium
JP5734799B2 (en) * 2011-08-31 2015-06-17 株式会社タッチパネル研究所 Structural material for touch panel and touch panel structure
KR20130027747A (en) * 2011-09-08 2013-03-18 삼성전기주식회사 Touch pannel
JP5384598B2 (en) 2011-09-09 2014-01-08 シャープ株式会社 Capacitive touch sensor panel, capacitive touch sensor system using the same, and information input / output device
CN103827794B (en) * 2011-09-13 2016-06-08 郡是株式会社 Contact panel
JP5506758B2 (en) * 2011-10-03 2014-05-28 三菱電機株式会社 Touch screen, touch panel, and display device including the same
JP5389888B2 (en) 2011-10-25 2014-01-15 シャープ株式会社 Touch panel system and electronic device
JP5734828B2 (en) * 2011-12-07 2015-06-17 株式会社タッチパネル研究所 Structural material for touch panel and touch panel structure
US10299377B2 (en) 2011-12-22 2019-05-21 Fujifilm Corporation Conductive sheet and touch panel
JP2013149232A (en) 2011-12-22 2013-08-01 Fujifilm Corp Conductive sheet and touch panel
JP5995227B2 (en) * 2011-12-23 2016-09-21 エルジー・ケム・リミテッド Touch panel and display device including the same
JP5892418B2 (en) * 2012-01-11 2016-03-23 大日本印刷株式会社 Touch panel sensor, touch panel sensor manufacturing method, and laminate for manufacturing touch panel sensor
JP5892419B2 (en) * 2012-01-11 2016-03-23 大日本印刷株式会社 Touch panel sensor
JP5812895B2 (en) * 2012-02-28 2015-11-17 株式会社ジャパンディスプレイ Proximity detection device, proximity detection method, electronic device
JP2013214185A (en) * 2012-04-02 2013-10-17 Toppan Printing Co Ltd Touch panel sensor and manufacturing method of the same
JP2013218648A (en) * 2012-04-11 2013-10-24 Touch Panel Kenkyusho:Kk Touch panel structure
US9401712B2 (en) 2012-04-16 2016-07-26 Sharp Kabushiki Kaisha Touch panel substrate with first grid electrodes and second grid electrodes
CN103376958A (en) * 2012-04-19 2013-10-30 深圳欧菲光科技股份有限公司 Capacitive sensing component, preparing method thereof, and touch control screen with capacitive sensing component
JP5829647B2 (en) * 2012-05-08 2015-12-09 富士フイルム株式会社 Conductive film
KR20130127848A (en) * 2012-05-15 2013-11-25 삼성전기주식회사 Touch sensor and the manufacturing method
JP2014002434A (en) * 2012-06-15 2014-01-09 Touch Panel Kenkyusho:Kk Conductive film and capacitive touch panel
US9459744B2 (en) 2012-07-31 2016-10-04 Sharp Kabushiki Kaisha Touch panel substrate and display device
CN104508613A (en) * 2012-08-02 2015-04-08 夏普株式会社 Touch panel substrate and display device
CN103631456B (en) 2012-08-24 2017-07-04 深圳欧菲光科技股份有限公司 Film inductor, the capacitance touch screen comprising the inductor and preparation method thereof and end product
KR101461928B1 (en) * 2012-08-28 2014-11-14 크루셜텍 (주) Touch detecting apparatuse for improving visualbility
US9510456B2 (en) 2012-11-09 2016-11-29 Shenzhen O-Film Tech Co., Ltd. Transparent conductor and preparation method thereof
CN103811105B (en) * 2012-11-09 2016-11-16 深圳欧菲光科技股份有限公司 Transparent conductive body and preparation method thereof
JP6037816B2 (en) * 2012-12-18 2016-12-07 三菱電機株式会社 Touch panel and display device including the same
EP2950186A4 (en) * 2013-01-24 2016-09-28 Toppan Printing Co Ltd Touch panel and display device
EP2950187A4 (en) * 2013-01-25 2016-10-19 Toppan Printing Co Ltd Touch panel and display device
JP6122672B2 (en) * 2013-03-19 2017-04-26 グンゼ株式会社 Projection Capacitance Type Touch Panel Film Manufacturing Method
US9198285B2 (en) 2013-03-20 2015-11-24 Nanchang O-Film Tech. Co., Ltd. Touch screen and conductive layer thereof
JP5844302B2 (en) * 2013-03-27 2016-01-13 株式会社ジャパンディスプレイ Display device with touch detection function and electronic device
WO2014156340A1 (en) * 2013-03-29 2014-10-02 シャープ株式会社 Touch-panel substrate and electronic device
CN103294271A (en) * 2013-05-30 2013-09-11 南昌欧菲光科技有限公司 Conducting film of touch screen and method for manufacturing conducting film
JP5943023B2 (en) 2013-07-08 2016-06-29 凸版印刷株式会社 Touch sensor electrode, touch panel, and display device
US9383781B2 (en) 2013-08-06 2016-07-05 Samsung Electro-Mechanics Co., Ltd. Touch sensor
US20160231861A1 (en) * 2013-09-25 2016-08-11 Sharp Kabushiki Kaisha Conductive sheet, touch panel device, display device, and method for manufacturing conductive sheet
WO2015060059A1 (en) * 2013-10-22 2015-04-30 富士フイルム株式会社 Conductive film, touch panel, and display device
KR101527320B1 (en) * 2014-02-26 2015-06-09 하이디스 테크놀로지 주식회사 Matrix switching type Touch panel
JP6225793B2 (en) * 2014-03-28 2017-11-08 凸版印刷株式会社 Touch sensor electrode, touch panel, and display device
JP2015227975A (en) * 2014-06-02 2015-12-17 株式会社ジャパンディスプレイ Display device and manufacturing method of the same
JP6329817B2 (en) * 2014-06-10 2018-05-23 株式会社ジャパンディスプレイ Display device with sensor
JP2015232819A (en) * 2014-06-10 2015-12-24 株式会社ジャパンディスプレイ Display device with sensor
WO2016152773A1 (en) * 2015-03-26 2016-09-29 三菱製紙株式会社 Light-transmitting conductive material
WO2019009315A1 (en) * 2017-07-05 2019-01-10 積水ポリマテック株式会社 Capacitance-type touch panel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH076827U (en) * 1993-06-30 1995-01-31 ぺんてる株式会社 Information input device
GB9406702D0 (en) * 1994-04-05 1994-05-25 Binstead Ronald P Multiple input proximity detector and touchpad system
JPH11110115A (en) * 1997-09-30 1999-04-23 Fujitsu General Ltd Digitizer device
US7129935B2 (en) * 2003-06-02 2006-10-31 Synaptics Incorporated Sensor patterns for a capacitive sensing apparatus
JP4055019B2 (en) * 2005-05-26 2008-03-05 グンゼ株式会社 Transparent sheet and transparent touch switch
JP4356026B2 (en) * 2006-10-10 2009-11-04 ソニー株式会社 Display device, light receiving method, and information processing device
JP4153009B2 (en) * 2007-02-15 2008-09-17 アルプス電気株式会社 Input device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10466838B2 (en) 2010-03-23 2019-11-05 Samsung Display Co., Ltd. Touch screen panel

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