WO2012141131A1 - Touch panel device - Google Patents

Touch panel device Download PDF

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Publication number
WO2012141131A1
WO2012141131A1 PCT/JP2012/059674 JP2012059674W WO2012141131A1 WO 2012141131 A1 WO2012141131 A1 WO 2012141131A1 JP 2012059674 W JP2012059674 W JP 2012059674W WO 2012141131 A1 WO2012141131 A1 WO 2012141131A1
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WO
WIPO (PCT)
Prior art keywords
reference signal
touch panel
panel device
terminal
signal terminal
Prior art date
Application number
PCT/JP2012/059674
Other languages
French (fr)
Japanese (ja)
Inventor
勝正 鴻野
Original Assignee
グンゼ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by グンゼ株式会社 filed Critical グンゼ株式会社
Priority to JP2013509899A priority Critical patent/JPWO2012141131A1/en
Publication of WO2012141131A1 publication Critical patent/WO2012141131A1/en

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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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • 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
    • 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

Definitions

  • the present invention relates to a touch panel device.
  • a capacitive touch panel for detecting an input position
  • a resistive touch panel for detecting an input position
  • the capacitive touch panel is configured with a dielectric layer interposed between a pair of transparent planar bodies each having a transparent conductor having a predetermined pattern shape, and when a finger or the like touches the operation surface, The touch position is detected by using a change in capacitance caused by being grounded via a human body.
  • FIG. 1, FIG. 5 of patent document 1 For example, FIG. 1, FIG. 5 of patent document 1).
  • the resistive touch panel detects a touch position by providing a transparent conductive film (resistive film) on upper and lower transparent substrates, making the transparent conductive film face each other with an air layer interposed therebetween, and bringing the transparent conductive films into contact with each other by pressing.
  • a transparent conductive film resistive film
  • Such a touch panel device is installed on a display screen in, for example, a game machine, a ticket machine, a conference table, a bank terminal (cash dispenser), a personal computer, an electronic notebook, a PDA, a mobile phone, etc. It is used to perform operations such as.
  • the present invention has been made to solve such a problem, and an object thereof is to provide a touch panel device that can effectively prevent malfunction.
  • the above object of the present invention is a touch panel device capable of detecting a touch position, and includes a touch panel having a plurality of electrode portions arranged at intervals, and a reference resistor electrically connected to each one end portion of the plurality of electrode portions.
  • a touch panel device comprising: a reference signal generating means; and a detecting means for detecting a touch position on the touch panel based on a change in each electric signal value in each reference resistor.
  • the touch panel device includes a plurality of the reference signal terminals, and is provided between the plurality of reference signal terminals and the reference signal generating means, and includes a terminal switching means for electrically connecting both, the terminal switching means It is preferable that the electrical connection between the reference signal generating means and each of the plurality of reference signal terminals can be sequentially switched.
  • the detection means is provided on the touch panel for each reference signal terminal electrically sequentially connected to the reference signal generation means by the terminal switching means based on a change in each electric signal value in each reference resistor. It is preferable that the touch position can be detected.
  • the terminal switching unit is configured to be connectable to a predetermined reference potential with respect to a reference signal terminal other than a reference signal terminal connected to the reference signal generating unit.
  • a contact signal detection means for detecting a contact signal when a human body contacts the reference signal terminal.
  • the reference signal terminal includes an exposed portion including an insulating region portion and a pair of conductive region portions arranged with the insulating region portion interposed therebetween, and the contact signal detecting means includes the insulating signal portion. It is preferable that a conduction signal generated by a human body contact between the pair of conductive region portions straddling the region portion is detected as the contact signal.
  • a control unit capable of switching between a normal mode in which a touch position can be detected and a sleep mode in which power consumption is lower than that in the normal mode is provided, and the control unit is configured to detect the touch signal detection unit. It is preferable to switch from the sleep mode to the normal mode based on the contact signal.
  • the contact signal detection means is configured to be able to detect a contact signal when a human body contacts the reference signal terminals, and the detection means detects each contact signal detected by the contact signal detection means. Based on this, it is preferable that the touch position on the touch panel can be detected based only on the change in each electric signal value in each reference resistor only for the reference signal terminal that has issued the contact signal.
  • the contact signal detection means is configured to be able to detect a contact signal when a human body comes into contact with each reference signal terminal, and the terminal switching means is configured to detect each contact signal detected by the contact signal detection means. Based on the above, it is preferable that the electrical connection between each of the reference signal terminals that generate the contact signal and the reference signal generating means can be sequentially switched.
  • the electric signal value is a potential difference between both ends of the reference resistor.
  • the electrode part is formed by forming a metal wire in a mesh shape.
  • the detection unit performs ON / OFF control of an alternating current applied from the reference signal generation unit to the reference signal terminal.
  • biometric authentication means is further provided, and based on the authentication result by the biometric authentication means, the detection means performs ON / OFF control of the alternating current applied to the reference signal terminal from the reference signal generating means. It is preferable to be characterized by this.
  • display means for clearly indicating the reference signal terminal to which an alternating current is applied.
  • FIG. 2 is a schematic cross-sectional view of a touch panel included in the touch panel device shown in FIG. 1. It is a top view which shows a part of touch panel shown in FIG.
  • FIG. 4 is a plan view showing another part of the touch panel shown in FIG. 2. It is a top view which shows a part of modification of the touch panel shown in FIG. It is a top view which shows another part of the modification of the touchscreen shown in FIG. It is explanatory drawing for demonstrating the touch position detection method by the touch-panel apparatus shown in FIG. It is a schematic diagram for demonstrating the modification of the touchscreen apparatus shown in FIG.
  • FIG. 1 It is a top view which shows a part of modification of the touch panel shown in FIG. It is a schematic diagram which shows the modification of the touchscreen apparatus shown in FIG. It is a schematic diagram which shows the other modification of the touchscreen apparatus shown in FIG. It is a schematic diagram which shows the other modification of the touchscreen apparatus shown in FIG. It is a schematic diagram which shows the modification of the touchscreen apparatus shown in FIG. It is a schematic block diagram which shows the modification of the reference signal terminal shown in FIG. It is a schematic diagram which shows the modification of the touchscreen apparatus shown in FIG.
  • FIG. 1 is a schematic diagram illustrating a schematic configuration of a touch panel device according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram illustrating a principle of the touch panel device.
  • the touch panel device 100 includes a touch panel 1, a plurality of reference resistors 5, a reference signal terminal 6, a reference signal generation unit 7, and a detection unit 8.
  • the touch panel device 100 may be either a single touch method or a multi touch method.
  • the single touch method refers to a method that detects a touch position of only one point
  • the multi-touch method refers to a method that can detect the positions of a plurality of points touched simultaneously.
  • the touch panel 1 is installed on a display screen of a game machine, a ticket vending machine, a conference table, a bank terminal (cash dispenser), a personal computer, an electronic notebook, a PDA, a mobile phone, etc. It is a touch panel used for performing an operation.
  • the touch panel 1 according to the present embodiment is a capacitive touch panel 1 and includes a first transparent planar body 10 and a second transparent planar body 20 as shown in the schematic cross-sectional view of FIG.
  • the first transparent planar body 10 includes a transparent substrate 11 and a transparent conductive film 12 patterned on one surface side of the transparent substrate 11, and the second transparent planar body 20 includes a transparent substrate 21, A transparent conductive film 22 patterned on one surface side of the transparent substrate 21 is provided.
  • the first transparent planar body 10 and the second transparent planar body 20 are formed so that the transparent conductive films 12 and 22 face the same direction (facing downward in FIG. 3), and the adhesive layer 3 It is pasted through.
  • a cover 13 made of polyethylene terephthalate (PET), glass or the like is attached to the other surface side of the transparent substrate 11 of the first transparent planar body 10 via an adhesive layer 13a, so that the second transparent planar shape is provided.
  • PET polyethylene terephthalate
  • a shield member 23 is attached to the surface of the body 20 where the transparent conductive film 22 is formed via an adhesive layer 23a. Moreover, in the structure of FIG. 3, although the 1st transparent planar body 10 and the 2nd transparent planar body 20 are stuck so that each transparent conductive film 12 and 22 may face the same direction, it is transparent. The first transparent planar body 10 and the second transparent planar body 20 may be attached so that the conductive films 12 and 22 face each other.
  • the transparent substrates 11 and 21 are dielectric substrates constituting an insulating layer, and include polyethylene terephthalate (PET), polyimide (PI), polyethylene naphthalate (PEN), polyethersulfone (PES), polyetheretherketone (PEEK). ), Polycarbonate (PC), polypropylene (PP), polyamide (PA), acrylic, amorphous polyolefin resin, cyclic polyolefin resin, aliphatic cyclic polyolefin, norbornene thermoplastic transparent resin, etc. It is formed of a flexible film, a laminate of two or more of these, or a glass plate such as soda glass, alkali-free glass, borosilicate glass, or quartz glass.
  • PET polyethylene terephthalate
  • PI polyimide
  • PEN polyethylene naphthalate
  • PES polyethersulfone
  • PEEK polyetherketone
  • PC polypropylene
  • PA polyamide
  • acrylic amorphous polyolefin
  • the thickness of the transparent substrates 11 and 21 is not particularly limited.
  • the thickness is preferably about 10 ⁇ m to 2000 ⁇ m, and preferably 50 ⁇ m to 500 ⁇ m. More preferably, it is about. In the case where the transparent substrates 11 and 21 are made of glass plates, it is preferable that the thickness is about 0.1 mm to 5 mm.
  • a support may be attached to give the transparent substrates 11 and 21 rigidity.
  • the support include a glass plate and a resin material having hardness similar to that of glass, and the thickness is preferably 100 ⁇ m or more, more preferably 0.2 mm to 10 mm.
  • the patterned transparent conductive films 12 and 22 disposed on one main surface of the transparent substrates 11 and 21 have a plurality of electrode portions 12a and 12a disposed at predetermined intervals. Each is formed as an aggregate of 22a. Each electrode part 12a, 22a is formed as a strip-like electrode part extending in parallel with each other. The strip-shaped electrode portions 12a and 22a of the transparent conductive films 12 and 22 are arranged so as to be orthogonal to each other.
  • the pattern shape of the transparent conductive films 12 and 22 is not limited to that of the present embodiment, and can be any shape as long as a contact point such as a finger can be detected. For example, as shown in FIGS.
  • the transparent conductive films 12 and 22 are configured such that a plurality of rhombus-shaped electrode portions 12 b and 22 b are linearly connected, and the rhombus electrodes in each of the transparent conductive films 12 and 22 are formed.
  • the connecting directions of the portions 12b and 22b may be orthogonal to each other, and the upper and lower rhombic electrode portions 12b and 22b may not be overlapped in plan view.
  • the pattern shape of the transparent conductive films 12 and 22 is preferably a configuration in which a plurality of rhomboidal electrode portions 12b and 22b are connected in a straight line rather than a rectangular configuration.
  • the materials of the transparent conductive films 12 and 22 include indium tin oxide (ITO), indium oxide, antimony-added tin oxide, fluorine-added tin oxide, aluminum-added zinc oxide, potassium-added zinc oxide, silicon-added zinc oxide, and zinc oxide.
  • ITO indium tin oxide
  • -Transparent conductive materials such as tin oxide, indium oxide-tin oxide, zinc oxide-indium oxide-magnesium oxide, zinc oxide, tin oxide film, or metal materials such as tin, copper, aluminum, nickel, chromium, Metal oxide materials can be exemplified, and two or more of these may be formed in combination.
  • a simple metal weak against acid or alkali can be used as a conductive material.
  • a transparent conductive film 12 a composite material in which ultrafine conductive carbon fibers such as carbon nanotubes, carbon nanohorns, carbon nanowires, carbon nanofibers, graphite fibrils, and the like, or ultrafine conductive fibers made of silver are dispersed in a polymer material functioning as a binder, It can also be used as 22 materials.
  • a conductive polymer such as polyaniline, polypyrrole, polyacetylene, polythiophene, polyphenylene vinylene, polyphenylene sulfide, poly p-phenylene, polyheterocyclic vinylene, PEDOT: poly (3,4-ethylenedioxythiophene) should be adopted as the polymer material. Can do.
  • Non-conductive polymers such as epoxy resins, phenol resins, aliphatic cyclic polyolefins, norbornene-based thermoplastic transparent resins can be employed.
  • the carbon nanotubes When a carbon nanotube composite material in which carbon nanotubes are dispersed in a non-conductive polymer material is adopted as the material of the transparent conductive films 12 and 22, the carbon nanotubes generally have a diameter of 0.8 nm to 1.4 nm ( Since it is very thin (around 1 nm), the carbon nanotubes are less likely to impede light transmission by being dispersed in the non-conductive polymer material one by one or in bundles, thereby ensuring the transparency of the conductive films 12 and 22. preferable.
  • the method for forming the transparent conductive films 12 and 22 examples include PVD methods such as sputtering, vacuum deposition, and ion plating, CVD, coating, and printing.
  • the thickness of the transparent conductive films 12 and 22 is preferably 60 nm or less, and more preferably 30 nm or less when an ITO film is formed by, for example, a sputtering method. Note that when the film thickness is 5 nm or less, it is difficult to form a continuous film, and it is difficult to form a stable conductive layer.
  • the transparent conductive films 12 and 22 are patterned by forming a mask portion having a desired pattern shape on the surfaces of the transparent conductive films 12 and 22 formed on the substrates 11 and 21, respectively, and etching the exposed portions with an acid solution or the like. After removing, the mask portion can be dissolved with an alkali solution or the like.
  • each strip-like electrode portion 12a, 22a is electrically connected to each reference resistor 5 via a wiring conductor (leading wiring) 15 formed on the transparent substrates 11, 12.
  • the method of forming the wiring conductor 15 includes (A) a method of screen-printing a conductive paste containing extremely fine conductive particles on the transparent substrates 11 and 21 (see Japanese Patent Application Laid-Open No. 2007-142334, etc.), and (B) copper or the like.
  • a method of laminating a metal foil on the transparent substrates 11 and 21, forming a resist pattern on the metal foil, and etching the metal foil can be mentioned.
  • Examples of the conductive particles in the forming method (A) include fine particles containing silver as a main component. Further, for example, fine particles mainly containing any one of gold, silver, copper, an alloy of gold and silver, an alloy of gold and copper, an alloy of silver and copper, and an alloy of gold, silver, and copper may be used. Also, indium tin oxide (ITO), conductive oxide in which indium oxide is mixed with zinc oxide (IZO [indium zinc oxide]) or fine particles mainly composed of conductive oxide (ITSO) in which silicon oxide is mixed with indium oxide.
  • ITO indium tin oxide
  • IZO indium zinc oxide
  • ITSO fine particles mainly composed of conductive oxide
  • the formation method of the wiring conductor 15 is not limited to the formation method of said (A) (B), Printing methods other than said (A), such as gravure printing, and photolithography other than said (B) are used. May be used.
  • the pressure-sensitive adhesive layer 3 can be made of a general transparent adhesive such as epoxy or acrylic, and may include a core made of a polyester resin transparent film. Further, the adhesive layer 3 may be formed by overlapping a plurality of sheet-like adhesive materials, and further, a plurality of types of sheet-like adhesive materials may be overlapped.
  • the thickness of the pressure-sensitive adhesive layer 3 is not particularly specified, but is practically preferably 200 ⁇ m or less.
  • the touch panel 1 is the structure which has the electrode parts 12a and 22a (or rhombus-shaped electrode parts 12b and 22b) arrange
  • Each reference resistor 5 electrically connected to one end of each strip-like electrode portion 12a, 22a via each wiring conductor 15 is a detection resistor provided to detect the touch position of the touch panel 1.
  • the resistance value is preferably set so as to have a value equal to or greater than the resistance value of each of the strip-shaped electrode portions 12a and 22a.
  • each reference resistor 5 is set to 1 k ⁇ to 100 k ⁇ , and the resistance value between both ends of each electrode portion 12a, 22a is set to 100 ⁇ to 10 k ⁇ .
  • the resistance values of the electrode portions 12 a and 22 a are higher than the resistance value of the reference resistor 5.
  • the reference signal terminal 6 is a device in which an operator (human body) trying to operate a device such as a game machine or a ticket vending machine on which the touch panel 1 is installed on the display screen is brought into contact with a finger or the like, such as stainless steel or aluminum.
  • An exposed portion 61 formed of a conductive material such as a metal material or a conductive resin material is provided.
  • the reference signal terminal 6 is disposed in the vicinity of the housing or the apparatus in a device such as a game machine or a ticket machine, for example, and a person operating the touch panel 1 touches the exposed portion 61 of the reference signal terminal 6 while touching the touch screen. It is arranged at a position where can be operated.
  • the surface of the exposed portion 61 may be coated with a conductive or insulating resin for surface protection, rust prevention, coloring, and the like.
  • various forms can be adopted as the form of the reference signal terminal 6.
  • a chair or a mat on which a foot is placed may be adopted as the reference signal terminal 6.
  • an exposed portion 61 is installed in the seat portion so that a person sitting on the chair can touch the exposed portion 61 naturally without being particularly conscious. It may be configured.
  • an insulating cushion may be placed on the seat portion.
  • the exposed portion 61 of the reference signal terminal 6 is disposed on the mat surface on which the person's foot is grounded, and the person is conscious by placing the foot on the mat. You may comprise so that the exposed part 61 may be touched naturally, without doing.
  • the reference signal generating means 7 is electrically connected to the reference signal terminal 6, and when the operator of the touch panel 1 touches the touch panel 1 while touching the exposed portion 61 of the reference signal terminal 6, FIG. As shown, it has a function of supplying an input signal such as an alternating current to the strip-shaped electrode portions 12a and 22a via the reference signal terminal 6 and the human body.
  • the alternating current supplied to the electrode portions 12 a and 22 a is guided to the reference resistor 5 through the wiring conductor 15.
  • the detecting means 8 has a function of detecting a touch position on the touch panel 1 based on a change in each electric signal value in each reference resistor 5. Examples of the electric signal value detected by the detecting means 8 include a voltage value between both ends of each reference resistor 5, a current value flowing through each reference resistor 5, and the like.
  • the detection means 8 includes a connection switching circuit such as a multiplexer electrically connected to each reference resistor 5, an arithmetic processing unit such as a microprocessor unit (MPU), a storage device such as a memory, and the like. A change in the electrical signal value in the reference resistor 5 is sequentially detected for each reference resistor 5, and the touch position can be calculated by calculation.
  • MPU microprocessor unit
  • connection switching speed of the connection switching circuit is preferably about 100 fps, for example.
  • the position detection method will be described with reference to an example of a touch panel configuration having ten (X1 to X10, Y1 to Y10) strip-like electrode portions 12a and 22a in both the X and Y directions as shown in FIG. Measures the voltage value (or current value) between both ends of the reference resistor 5 connected to each of the belt-like electrode portions 12a of X1 to X10 and stores the value. Based on the total 10 voltage values (or current values) stored, the voltage distribution (or current distribution) in the X direction is obtained, the position where the maximum value is obtained is calculated, and the position is recognized as the touch position in the X direction. .
  • the detection means 8 measures the voltage value (or current value) between both ends of the reference resistor 5 connected to each of the belt-like electrode portions 22a of Y1 to Y10 and stores the value. Based on a total of ten voltage values (or current values) stored, a voltage distribution (or current distribution) in the Y direction is obtained, and a position having a maximum value is recognized as a touch position in the Y direction.
  • an arithmetic processing unit such as an MPU is also configured to have a function of a connection switching circuit such as a multiplexer, and the arithmetic processing unit includes each reference resistor 5 and each strip-shaped electrode portion 12a (22a). ) May be switched.
  • the detection means 8 includes a plurality of sub-MPUs 86 that detect changes in the voltage distribution (or current distribution) of the electrode portions 12a and 22a included in each group.
  • a main MPU 87 that controls the control of each sub MPU 86 and the connection switching of the reference signal terminal 6 and the like may be provided.
  • the touch panel operator 100 does not detect the position unless the person operating the touch panel 1 operates the touch panel 1 while touching the reference signal terminal 6. Although there is no intention to perform the screen operation, it is possible to effectively prevent a malfunction in which the touch panel device 100 is driven simply by accidentally touching the touch panel 1 with clothes, a portable object, a finger, or the like. .
  • the transparent conductive film 12 may be configured as an aggregate of a plurality of island-shaped electrode portions 12c as shown in FIG.
  • the transparent conductive film 12 is formed as an aggregate of island-shaped electrode portions 12c, the wiring conductors 15 are connected to the respective electrode portions 12c, so that a part of the wiring conductor 15 is part of each electrode portion 12c. It is arranged between. As shown in FIG.
  • the transparent conductive film 12 when the transparent conductive film 12 is formed as an aggregate of a plurality of island-shaped electrode portions 12c and the wiring conductors 15 are connected to the respective electrode portions 12c, Only the first transparent planar body 10 (or the second transparent planar body 20) having the electrode portion 12 has a function as the touch panel 1.
  • the electrode portions 12a and 22a included in the touch panel 1 may be configured to have a mesh shape with a metal wire.
  • a shape in which metal wires are arranged in a lattice shape can be given.
  • the grid shape metal lines may be formed so as to be parallel to each side of the transparent substrate 1, and the grid shape may be formed. The metal line is inclined at a predetermined angle with respect to each side of the transparent substrate 1. May be arranged to form a lattice shape.
  • the metal wires are very thin wires, and the metal wires are arranged at substantially equal intervals.
  • the line width of the metal wire is preferably in the range of 5 ⁇ m to 50 ⁇ m, particularly preferably in the range of 10 ⁇ m to 30 ⁇ m. Further, the interval between adjacent metal lines is preferably in the range of 100 ⁇ m to 1000 ⁇ m.
  • the method of forming the metal wire constituting the electrode part is the same as the method of forming the wiring conductor 15 described above, and (A) screen-printing a conductive paste containing ultrafine conductive particles on the transparent substrates 11 and 21. And (B) a method in which a metal foil such as copper is laminated on the transparent substrates 11 and 21, a resist pattern is formed on the metal foil, and the metal foil is etched.
  • Examples of the conductive particles in the forming method (A) include fine particles containing silver as a main component. Further, for example, fine particles mainly containing any one of gold, silver, copper, an alloy of gold and silver, an alloy of gold and copper, an alloy of silver and copper, and an alloy of gold, silver, and copper may be used. Also, indium tin oxide (ITO), conductive oxide in which indium oxide is mixed with zinc oxide (IZO [indium zinc oxide]) or fine particles mainly composed of conductive oxide (ITSO) in which silicon oxide is mixed with indium oxide.
  • ITO indium tin oxide
  • IZO indium zinc oxide
  • ITSO fine particles mainly composed of conductive oxide
  • belt-shaped electrode parts 12a and 22a formed in the one surface side of the transparent substrates 11 and 21 are adhere
  • the touch panel 1 is configured by being attached via the layer 3, but is not particularly limited to such a configuration.
  • a plurality of strip-shaped electrode portions 12 a are formed on one surface side of one transparent substrate.
  • the touch panel 1 may be configured by forming a plurality of strip-shaped electrode portions 22a on the other surface side of the transparent substrate so as to extend in a direction perpendicular to the strip-shaped electrode portions 12a.
  • the touch panel device 100 has a configuration including a single reference signal terminal 6.
  • the touch panel device 100 includes a plurality of reference signal terminals 6 and a plurality of reference signal terminals 6 and You may comprise so that the terminal switching means 9 which is arrange
  • the terminal switching means 9 is connected to an arithmetic processing device such as an MPU provided in the detecting means 8, and the electrical operation between the reference signal generating means 7 and each of the plurality of reference signal terminals 6 is performed by the operation of the arithmetic processing device. The connection can be switched sequentially.
  • the terminal switching means 9 for example, a switching circuit such as a multiplexer can be used.
  • the switching speed of the terminal switching means 9 is preferably about 100 fps, for example.
  • the detection means 8 is provided on the touch panel 1 on the basis of the change in each electric signal value in each reference resistor 5 for each reference signal terminal 6 electrically connected to the reference signal generation means 7 by the terminal switching means 9 in sequence. It is preferable that the touch position can be detected.
  • the detection means 8 individually detects the touch position of the touch panel 1 of the person who touches each reference signal terminal 6 in synchronization with the connection switching timing between each reference signal terminal 6 and the reference signal generation means 7 by the terminal switching means 9. It is preferable to be configured so that it can be detected. Even when the touch panel device 100 is configured so that a plurality of people can operate the touch panel 1 at the same time, the touch panel device 100 may be configured in either a single touch method or a multi-touch method. Note that the multi-touch method in the touch panel device 100 configured so that a plurality of people can operate the touch panel 1 at the same time is a method capable of detecting the positions of a plurality of points touched simultaneously for each person.
  • the terminal switching means 9 is configured to be connectable to a predetermined reference potential with respect to the reference signal terminals 6 other than the reference signal terminal 6 connected to the reference signal generating means 7.
  • position detection on the touch panel 1 can be accurately detected. More specifically, in a situation where a plurality of people are simultaneously touching the reference signal terminals 6 and touching the touch panel 1, the connection between the reference signal generating means 7 and each reference signal terminal 6 is switched. Thus, even if the connection between the reference signal generating means 7 and the reference signal terminal 6 is released, electrical noise is applied to the electrode portion of the touch panel 1 through the reference signal terminal 6 and the human body contacting the reference signal terminal 6.
  • the terminal switching unit 9 connects the predetermined reference potential to the reference signal terminal 6 other than the reference signal terminal 6 connected to the reference signal generating unit 7. Thus, it is possible to effectively prevent the noise from being supplied to the electrode portion of the touch panel 1.
  • the touch panel device 100 is configured so that a plurality of persons can operate the touch panel 1 at the same time, for example, a configuration as shown in FIG. 12 may be adopted. That is, the plurality of reference signal terminals 6 are divided into a plurality of groups (two groups in FIG. 12) and connected to different terminal switching means 9a, 9b and reference signal generating means 7a, 7b for each group. At this time, it is preferable to set the frequency of the alternating current supplied by each reference signal generating means 7a, 7b to be different. By supplying alternating currents having different frequencies in this manner, the detection means 8 can select a plurality of input signals having different frequencies (alternating currents flowing to the reference resistor 5 via the electrode portions 12a and 22a). Since it becomes possible to calculate the touch position of a person at the same time, even if the number of persons operating the touch panel 1 increases, it is possible to quickly detect the touch position of each person without reducing the position detection speed (sampling rate). Is possible.
  • detection means 8 includes a connection switching circuit such as a multiplexer that is electrically connected to each reference resistor 5, and is configured to sequentially detect a change in the electric signal value in each reference resistor 5. It is not specifically limited to.
  • a plurality of strip-like electrode portions 12a and 22a included in the touch panel 1 are divided into a plurality of groups, and a plurality of connection switching circuits 85 connected to the electrode portions 12a and 22a included in each group (see FIG. 13).
  • each of the connection switching circuits 85 (such as a multiplexer) switches the connection with each reference resistor 5 for each of several grouped electrode portions 12a and 22a, and each reference resistor 5 It becomes possible to detect the change of the electric signal value input to the device 5 in parallel, and to quickly detect the touch position on the touch panel 1.
  • the exposed portion 61 provided in the reference signal terminal 6 includes an insulating region portion 611 and a pair of conductive region portions 612a and 612b arranged with the insulating region portion 611 interposed therebetween.
  • the contact signal detecting means 62 may be configured to detect a conduction signal generated by human contact between the pair of conductive region portions 612a and 612b straddling the insulating region portion 611 as a contact signal. Good. Specifically, in FIG.
  • a ring-shaped insulating region 611 is disposed on the outer peripheral side of the circular conductive region 612 a, and the ring-shaped conductive region is formed on the outer peripheral side of the insulating region 611.
  • the exposed portion 61 is configured by disposing 612b.
  • a conduction signal such as an alternating current signal is transmitted from the outer ring-shaped conductive region part 612b to the inner conductive part.
  • the contact signal detecting means 62 is configured to detect a conduction signal flowing through the inner conductive region 612a.
  • the conduction signal (contact signal) detected by the contact signal detection means 62 is configured to be transmitted to the detection means 8.
  • the shape of the exposed portion 61 provided in the reference signal terminal 6 is not particularly limited to the shape as shown in FIG. 14, and for example, the shape as shown in FIGS. 15A and 15B may be adopted.
  • the shape of the exposed portion 61 shown in FIG. 15A is that each conductive region portion 612a, 612b is formed in a comb-like shape, and the comb-tooth portion of one conductive region portion 612a is interposed via the insulating region portion 611.
  • the other conductive region portion 612b is arranged between the comb teeth.
  • the shape of the exposed portion 61 shown in FIG. 15B is configured such that the conductive region portions 612a and 612b are formed in a double spiral shape, and the insulating region portion 611 is provided between the conductive region portions 612a and 612b. Are configured to be arranged.
  • the configuration of the reference signal terminal 6 and the contact signal detecting means 62 is not particularly limited as long as it generates a contact signal when a human body comes into contact with the reference signal terminal 6.
  • a capacitive touch switch may be incorporated in the reference signal terminal 6 and the contact signal detection unit 62 may detect a change in capacitance as a contact signal.
  • a resistive touch switch or push button switch is incorporated into the reference signal terminal 6 to generate a pressing state with respect to the resistive touch switch or push button switch as an electrical signal, and this signal is contacted as a contact signal. You may comprise so that the signal detection means 62 may detect.
  • the contact signal generated when the human body contacts the reference signal terminal 6 is used. Based on this, it is possible to control the driving of the touch panel device 100 in various ways. For example, it is possible to save power in the touch panel device 100 or a game machine or a ticket machine in which the touch panel device 100 is installed. Moreover, the responsiveness of the touch position detection of the touch panel apparatus 100 can be improved.
  • the touch panel device 100 includes the detection unit 8 as described above.
  • the detection unit 8 is used for detecting the position of the touch panel 1, such as an arithmetic processing unit such as an MPU, a connection switching circuit such as a multiplexer, and a memory.
  • Storage devices, A / D converters, and the like, and these devices consume a lot of power even when a person is not performing a touch operation on the touch panel 1.
  • the touch panel device 100 is used by being installed in a display device such as a game machine or a ticket vending machine, but consumes a lot of power when a display screen is always displayed on the display device.
  • the touch panel device 100 is configured to include a control unit capable of switching between a normal mode in which a normal operation can be performed and a touch position can be detected and a sleep mode in which power consumption is lower than that in the normal mode.
  • a control unit capable of switching between a normal mode in which a normal operation can be performed and a touch position can be detected and a sleep mode in which power consumption is lower than that in the normal mode.
  • the control means By configuring the control means to be able to switch from the sleep mode to the normal mode based on the contact signal detected by the contact signal detection means 62 (detecting the contact signal), power saving of the touch panel device 100 is achieved.
  • the sleep mode for example, a form in which power supply is stopped only to a display device such as a game machine or a ticket vending machine in which the touch panel device 100 is installed, or the touch panel device 100 in addition to the display device.
  • a mode of stopping power supply to some devices (including circuits) in the detection means 8 provided can be assumed, but in particular, the minimum devices (including circuits) required for returning from the sleep mode to the normal mode.
  • a mode in which power supply to devices other than the above (including circuits) is stopped is preferable.
  • a mode of transition from the normal mode to the sleep mode for example, when a state where there is no touch operation on the touch panel 1 continues for a predetermined time (for example, a state where there is no touch operation for 5 seconds, etc.), Can be configured to shift to a sleep mode. Or you may comprise so that it may transfer to sleep mode automatically, when the contact signal detection means 62 does not detect a contact signal.
  • the control means may be incorporated in the detection means 8 or may be configured to be provided separately from the detection means 8. Further, an MPU (arithmetic processing unit) provided in the detection unit 8 may function as a control unit.
  • the touch panel device 100 configured as described above (the touch panel device 100 shown in FIG. 11) will be described. For example, as shown in FIG.
  • the contact signal detection means 62 can be configured to detect a contact signal when a human body comes into contact with each reference signal terminal 6 (6a to 6d), and the detection means 8 includes Based on each contact signal detected by each contact signal detecting means 62, the reference signal terminal 6 (6a to 6d) with which the human body is in contact (touched) is discriminated, and the reference signal terminal 6 (sends the contact signal) ( Only for 6a to 6d), the touch position on the touch panel 1 can be detected based on the change of each electric signal value in each reference resistor 5.
  • a configuration is adopted, for example, as shown in FIG.
  • the terminals 6a and 6b are connected to the terminals 6a and 6b.
  • Only the detection means 8 can perform a touch position detection calculation, and control can be performed so that the touch position detection calculation is not performed for the terminals 6c and 6d that are not touched by a finger or the like. The speed is increased and the responsiveness of the touch panel device 100 can be improved.
  • the contact signal detection unit 62 is configured to be able to detect a contact signal when a human body contacts each reference signal terminal 6, and the contact signal detection unit 62 includes Based on each contact signal to be detected, the terminal switching unit 9 may be configured to be capable of sequentially switching the electrical connection with the reference signal generating unit 7 only for the reference signal terminal 6 that has issued the contact signal. .
  • the MPU controls the terminal switching unit 9 based on the contact signal input to the MPU (arithmetic processing unit) in the detection unit 8, and the terminal switching unit 9
  • the electrical connection with the reference signal generating means 7 is sequentially switched only with respect to the reference signal terminal 6 that has emitted the signal.
  • the electrical connection between the reference signal terminal 6 that is not in contact with the human body and the reference signal generating means 7 is omitted, and the reference signal terminal 6 that is actually in contact with the human body is omitted. Since only the reference signal generating means 7 is electrically connected, the touch position detection speed of each person when touching the touch panel 1 can be increased.
  • the touch panel device 100 is configured to include an operation-specific glove (glove) worn by a user who operates the touch panel 1, and the inside of the operation-specific glove (a part for inserting a finger or a part in contact with the palm)
  • the reference signal terminal 6 may be arranged on the back of the hand.
  • the touch panel device can be used when a person who does not intend to operate the touch panel 1 touches the touch panel 1. It is possible to effectively prevent 100 from being driven (position detection).
  • each of the plurality of reference signal terminals 6 is arranged at the tip of each finger insertion portion of the operation-dedicated glove, and the touch panel device 100 can detect the touch position by each finger of the user who operates the touch panel 1. May be configured.
  • the touch panel device 100 can be used as an operation means of game software for one person that requests a plurality of touch signals (screen touches) at the same time.
  • the touch panel 1 is installed on a display screen on which a piano keyboard is displayed, and for example, a piano practice device operating means for learning the correct finger usage during piano performance such as which finger is correct to play which keyboard.
  • each finger is interposed between each finger and each reference signal terminal 6 from the viewpoint of preventing capacitive coupling between the reference signal terminals arranged on each finger.
  • the shield layer is provided.
  • Each reference signal terminal 6 may be covered with a covering material in order not to damage the touch panel 1.
  • the touch panel apparatus 100 may comprise the touch panel apparatus 100 so that several touch panels 1 may be provided.
  • the touch panel device 100 of the present invention is installed in a large display device, the display screen of the display device is divided in half and two touch panels 1 are installed on the screen. You may comprise so that it can detect.
  • the touch panel device 100 when the touch panel device 100 is purchased and the chair-type reference signal terminal 6 is initially used, it is necessary to change the installation position of the touch panel device 100 and install it in a narrow space.
  • the reference signal terminal 6 it is possible to easily cope with the problem by changing the reference signal terminal 6 to another type (for example, a button shape), and the convenience of the user can be improved.
  • the sensitivity of the reference resistor 5 changes depending on the form of the reference signal terminal 6.
  • 5 includes an amplifying means capable of amplifying the electric signal value detected by the reference signal terminal 6 according to the form of the reference signal terminal 6, or an input signal (alternating current) applied to the reference signal terminal 6 by the reference signal generating means 7 It is preferable that the configuration can be changed. Or it is preferable to comprise so that the threshold value used as the reference
  • the detection means includes table data relating to the amplification factor corresponding to the reference signal terminal 6 of each form, and the detection means 8 includes the reference signal generation means 7 It is configured so that it can be determined what kind of reference signal terminal 6 is connected to, and based on the determination result, the detection means 8 selects the table data and the reference resistor 5 detects it. You may comprise so that the sensitivity of the reference resistor 5 may be in the optimal state automatically by carrying out amplification correction of the electric signal value.
  • the touch panel device 100 in the above embodiment is configured such that the single reference signal terminal 6 is electrically connected to the reference signal generating means 7, but the reference signal terminal 6 (button shape) having a different form is used.
  • the reference signal terminal 6) having a chair shape or a mat shape is configured to be branched from the reference signal generating means 7.
  • the touch panel 1 is touched while touching any of the reference signal terminals 6, the touch position is determined. You may comprise so that it can recognize.
  • the touch operation is performed while sitting on the chair-shaped reference signal terminal 6, or the touch operation is performed while standing while touching the button-shaped reference signal terminal 6 with a fingertip. This makes it possible to perform an operation in a posture according to the operator's preference.
  • such a configuration includes a plurality of reference signal terminals 6 and is disposed between the plurality of reference signal terminals 6 and the reference signal generating means 7 and electrically connects the two.
  • the present invention can also be applied to a case where the switching unit 9 is provided so that a plurality of persons can operate the touch panel device 100.
  • a branch wiring may be provided between the connection wirings of the terminal switching means 9 and each reference signal terminal 6, and the reference signal terminals 6 having different forms may be connected to each branch wiring.
  • the detection unit 8 may be configured to perform ON / OFF control of the input signal (alternating current) applied from the reference signal generation unit 7 to the reference signal terminal 6. Specifically, when the reference signal terminal 6 is in a non-contact state for a predetermined time, control is performed so that an input signal (alternating current) is not applied to the reference signal terminal 6. Alternatively, when the operator presses an input button provided separately, the detection means 8 applies the input signal (alternating current) from the reference signal generating means 7 to the reference signal terminal 6 based on the pressing signal. You may comprise. When the touch panel 1 is installed on the monitor of the game machine and a coin insertion slot is provided adjacent to the reference signal terminal 6, the detection means 8 detects a signal that a coin has been inserted into the coin insertion slot. An input signal (alternating current) from the reference signal generating means 7 may be applied to the reference signal terminal 6 based on this coin insertion signal.
  • a terminal switching means 9 is provided between the plurality of reference signal terminals 6 and the reference signal generating means 7 to electrically connect them.
  • the detection means 8 may be controlled to apply an input signal only to an arbitrary reference signal terminal 6. That is, the detection means 8 is configured to control the terminal switching means 9 so as to perform ON / OFF control of the input signal (alternating current) applied from the reference signal generation means 7 to the reference signal terminal 6. Also good.
  • an input signal (alternating current) is applied to the reference signal terminal 6. Control so that it is not.
  • the detection means 8 controls the terminal switching means 9 based on the pressing signal, and the input signal (alternating current) from the reference signal generating means 7 is received. You may comprise so that it may apply to the reference signal terminal 6.
  • FIG. when the touch panel 1 is installed on the monitor of the game machine and a coin insertion slot is provided adjacent to each reference signal terminal 6, a signal indicating that a coin has been inserted into the coin insertion slot is detected by means 8. Based on this coin insertion signal, the input signal (alternating current) from the reference signal generating means 7 is applied only to the reference signal terminal 6 adjacent to the coin insertion slot into which the coin has been inserted. You may comprise.
  • the touch panel device 100 is configured to include biometric authentication means, and based on the biometric authentication result, the detection means 8 receives an input signal (alternating current) applied from the reference signal generating means 7 to the reference signal terminal 6. You may comprise so that ON / OFF control may be performed.
  • biometric authentication means include fingerprint authentication means and vein authentication means. A specific configuration will be described below. For example, when a fingerprint authentication unit is used as a biometric authentication unit, the exposed portion 61 of the reference signal terminal 6 is formed of a transparent conductive glass, and a fingerprint is formed below the conductive glass. An authentication camera for image acquisition is provided. Further, the detection means 8 is configured to include a storage unit that stores pre-registered fingerprint data and a verification processing unit that performs fingerprint verification.
  • the collation processing unit collates the fingerprint image acquired by the authentication camera and the registered fingerprint data stored in the storage unit, and the fingerprint data of the operator who touches the exposed portion 61 of the reference signal terminal 6 with a finger is obtained. , It has a function of determining whether or not it matches any of the pre-registered fingerprint data.
  • the detection unit 8 applies the input signal from the reference signal generation unit 7 to the reference signal terminal 6. The operator can perform the touch panel operation of the touch panel 1.
  • the detection means 8 sends the input signal from the reference signal generation means 7 to the reference signal terminal 6. It is not applied so that the operator cannot perform touch operations on the touch panel 1.
  • the touch panel device 100 When the touch panel device 100 is configured to have a biometric authentication function in this manner, the person who can operate the touch panel device 100 can be limited to those who have previously registered fingerprint data, for example, storing highly confidential data. It is possible to improve the security when the touch panel device 100 is used as the operating means of the computer that is running. Further, when the biometric authentication function is provided, even if the person who operates the touch panel device 100 is switched, it is possible to identify each operator and permit the touch panel operation to the person. The contents of the touch operation of the person can be saved as an operation log. For example, as described above, when the touch panel device 100 is used as an operation unit of a computer storing highly confidential data, information such as when and what data a certain operator has viewed is displayed. Since it can be left as an operation log, it is possible to further improve the security.
  • the timing for releasing the permission of the touch operation from the state where the touch operation is permitted by the biometric authentication function (the timing when the operation is disabled), for example, the timing when the operator releases the finger from the reference signal terminal 6.
  • the operation permission state is set when the operation permission state is released every time or when the operator does not touch the reference signal terminal 6 again within a predetermined time after releasing the finger from the reference signal terminal 6. It is preferable to be configured to cancel.
  • an authentication cancellation button for canceling authentication may be provided separately, and the operation permission state may be canceled by pressing the authentication cancellation button.
  • the authentication cancellation button may be a push button type button provided in the vicinity of the operation screen, or may be a touch switch type button displayed on the operation screen.
  • a plurality of reference signal terminals 6 are provided, and a terminal switching means 9 is provided between the plurality of reference signal terminals 6 and the reference signal generating means 7 to electrically connect them.
  • biometric authentication means can be provided. Specifically, based on the biometric authentication result, for example, the detection unit 8 controls the terminal switching unit 9 to turn on the input signal (alternating current) applied from the reference signal generation unit 7 to each reference signal terminal 6. / OFF control is performed. In the case of such a configuration, for example, an operator who is performing a touch operation while touching a certain first reference signal terminal 6 performs a touch panel operation while touching a different second reference signal terminal 6.
  • the touch panel device 100 can identify the operator, by taking over the operation log, it is possible to carry out the second touch in a state in which the past touch content operated while touching the first reference signal terminal 6 is taken over. A touch operation performed while touching the reference signal terminal 6 becomes possible.
  • the reference signal generation means 7 Display means for clearly indicating the reference signal terminal 6 to which the input signal (alternating current) is applied may be provided.
  • the reference signal terminal 6 has a button shape having the exposed portion 61 as shown in FIGS. 11 and 14, the vicinity of the exposed portion 61 or along the edge of the exposed portion 61.
  • the reference signal terminal 6 to which the input signal (alternating current) from the reference signal generating means 7 is applied can be clearly indicated by providing a light emitter such as a lamp arranged in the same manner and causing the light emitter to emit light. May be.
  • a light emitter may be installed on the armrest so that the light emitter emits light.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

Provided is a touch panel device in which malfunctioning can be effectively prevented. A touch panel device (100) capable of detecting a touch position comprises a touch panel (1) having a plurality of electrode parts (12a) disposed spaced apart, reference resistors (5) electrically connected to one end of each of the plurality of electrode parts (12a), a reference signal terminal (6) which can be contacted by a human body, a reference signal generating means (7) for supplying an alternating current to the electrode parts (12a) via the reference signal terminal (6) and the human body when the human body has touched the touch panel while also making contact with the reference signal terminal (6), and a detecting means (8) for detecting the touch position on the touch panel (1) on the basis of the change in each of the electrical signal values at each of the reference resistors (5).

Description

タッチパネル装置Touch panel device
　本発明は、タッチパネル装置に関する。 The present invention relates to a touch panel device.
　入力位置を検出するためのタッチパネル装置の構成は、従来から種々検討されており、例えば、静電容量式タッチパネルや抵抗膜式タッチパネルなどが知られている。静電容量式タッチパネルは、それぞれ所定のパターン形状を有する透明導電体を備えた一対の透明面状体の間に誘電体層が介在されて構成されており、指などが操作面に触れると、人体を介して接地されることによる静電容量の変化を利用して、タッチ位置を検出するものである。（例えば特許文献１の図１、図５）。また、抵抗膜式タッチパネルは、上下の透明基板に透明導電膜（抵抗膜）を設け、空気層を挟み透明導電膜を対向させ、押圧により透明導電膜同士を接触させることによりタッチ位置を検出するものである（例えば特許文献１の図７）。 Various configurations of touch panel devices for detecting an input position have been conventionally studied. For example, a capacitive touch panel, a resistive touch panel, and the like are known. The capacitive touch panel is configured with a dielectric layer interposed between a pair of transparent planar bodies each having a transparent conductor having a predetermined pattern shape, and when a finger or the like touches the operation surface, The touch position is detected by using a change in capacitance caused by being grounded via a human body. (For example, FIG. 1, FIG. 5 of patent document 1). In addition, the resistive touch panel detects a touch position by providing a transparent conductive film (resistive film) on upper and lower transparent substrates, making the transparent conductive film face each other with an air layer interposed therebetween, and bringing the transparent conductive films into contact with each other by pressing. (For example, FIG. 7 of Patent Document 1).
　このようなタッチパネル装置は、例えば、ゲーム機や、券売機、会議テーブル、銀行端末（キャッシュディスペンサー）、パソコン、電子手帳、ＰＤＡ、携帯電話等における表示画面上に設置されて、ゲーム機や券売機等の操作を行うために使用されている。 Such a touch panel device is installed on a display screen in, for example, a game machine, a ticket machine, a conference table, a bank terminal (cash dispenser), a personal computer, an electronic notebook, a PDA, a mobile phone, etc. It is used to perform operations such as.
特開２００３－１７３２３８号公報JP 2003-173238 A
　しかしながら、従来のタッチパネル装置が表示画面上に設置されたゲーム機や券売機等の装置においては、着衣や携帯物、指等が誤ってタッチパネルに触れることにより、タッチパネル装置が駆動する場合もあり、画面操作を行う者の意思に関係なく、ゲーム機等の表示装置に表示される画像等が変化してしまう誤作動が発生するという問題があった。 However, in devices such as game machines and ticket vending machines where a conventional touch panel device is installed on the display screen, the touch panel device may be driven by clothing, portable objects, fingers, etc. touching the touch panel by mistake, There has been a problem that a malfunction occurs in which an image displayed on a display device such as a game machine changes regardless of the intention of the person who operates the screen.
　本発明は、このような問題を解決するためになされたものであって、誤作動が発生することを効果的に防止することができるタッチパネル装置を提供することを目的とする。 The present invention has been made to solve such a problem, and an object thereof is to provide a touch panel device that can effectively prevent malfunction.
　本発明の上記目的は、タッチ位置を検出できるタッチパネル装置であって、間隔をあけて複数配置される電極部を有するタッチパネルと、前記複数の電極部の各一端部に電気的に接続する基準抵抗器と、人体が接触可能な基準信号端子と、前記基準信号端子に接触しつつ前記タッチパネルに人体がタッチした場合に、前記基準信号端子及び人体を介して、交流電流を前記電極部に供給する基準信号発生手段と、前記各基準抵抗器における各電気信号値の変化に基づいて前記タッチパネル上のタッチ位置を検出する検出手段と、を備えるタッチパネル装置より達成される。 The above object of the present invention is a touch panel device capable of detecting a touch position, and includes a touch panel having a plurality of electrode portions arranged at intervals, and a reference resistor electrically connected to each one end portion of the plurality of electrode portions. When the human body touches the touch panel while being in contact with the reference signal terminal and the reference signal terminal that can contact the human body, an alternating current is supplied to the electrode unit via the reference signal terminal and the human body. It is achieved by a touch panel device comprising: a reference signal generating means; and a detecting means for detecting a touch position on the touch panel based on a change in each electric signal value in each reference resistor.
　このタッチパネル装置において、前記基準信号端子を複数備えており、前記複数の基準信号端子および前記基準信号発生手段の間に配置され、両者を電気的に接続する端子切替手段を備え、前記端子切替手段は、基準信号発生手段と前記複数の基準信号端子の個々との電気的な接続を順次切り替え可能に構成されていることが好ましい。 The touch panel device includes a plurality of the reference signal terminals, and is provided between the plurality of reference signal terminals and the reference signal generating means, and includes a terminal switching means for electrically connecting both, the terminal switching means It is preferable that the electrical connection between the reference signal generating means and each of the plurality of reference signal terminals can be sequentially switched.
　また、前記検出手段は、前記端子切替手段により、前記基準信号発生手段と電気的に順次接続された基準信号端子毎に、前記各基準抵抗器における各電気信号値の変化に基づいて前記タッチパネル上のタッチ位置を検出可能に構成されていることが好ましい。 In addition, the detection means is provided on the touch panel for each reference signal terminal electrically sequentially connected to the reference signal generation means by the terminal switching means based on a change in each electric signal value in each reference resistor. It is preferable that the touch position can be detected.
　また、前記端子切替手段は、前記基準信号発生手段と接続する基準信号端子以外の基準信号端子に対して所定の基準電位に接続可能に構成されていることが好ましい。 Further, it is preferable that the terminal switching unit is configured to be connectable to a predetermined reference potential with respect to a reference signal terminal other than a reference signal terminal connected to the reference signal generating unit.
　また、前記基準信号端子に人体が接触した際の接触信号を検出する接触信号検出手段を備えることが好ましい。 Further, it is preferable to include a contact signal detection means for detecting a contact signal when a human body contacts the reference signal terminal.
　また、前記基準信号端子は、絶縁領域部と、前記絶縁領域部を間に挟んで配置される一対の導電性領域部とを備える露出部を備えており、前記接触信号検出手段は、前記絶縁領域部を跨いだ前記一対の導電性領域部の人体接触により発生する導通信号を前記接触信号として検出することが好ましい。 The reference signal terminal includes an exposed portion including an insulating region portion and a pair of conductive region portions arranged with the insulating region portion interposed therebetween, and the contact signal detecting means includes the insulating signal portion. It is preferable that a conduction signal generated by a human body contact between the pair of conductive region portions straddling the region portion is detected as the contact signal.
　また、タッチ位置を検出可能な通常モードと、前記通常モードよりも消費電力が少ないスリープモードとの切り替えが可能な制御手段を備えており、前記制御手段は、前記接触信号検出手段が検出する前記接触信号に基づいて、前記スリープモードから前記通常モードに切り替えることが好ましい。 In addition, a control unit capable of switching between a normal mode in which a touch position can be detected and a sleep mode in which power consumption is lower than that in the normal mode is provided, and the control unit is configured to detect the touch signal detection unit. It is preferable to switch from the sleep mode to the normal mode based on the contact signal.
　また、前記接触信号検出手段は、前記各基準信号端子に人体が接触した際の接触信号をそれぞれ検出可能に構成されており、前記検出手段は、前記接触信号検出手段が検出する各接触信号に基づいて、接触信号を発した基準信号端子に対してのみ、前記各基準抵抗器における各電気信号値の変化に基づいて前記タッチパネル上のタッチ位置を検出可能に構成されていることが好ましい。 Further, the contact signal detection means is configured to be able to detect a contact signal when a human body contacts the reference signal terminals, and the detection means detects each contact signal detected by the contact signal detection means. Based on this, it is preferable that the touch position on the touch panel can be detected based only on the change in each electric signal value in each reference resistor only for the reference signal terminal that has issued the contact signal.
　また、前記接触信号検出手段は、前記各基準信号端子に人体が接触した際の接触信号をそれぞれ検出可能に構成されており、前記端子切替手段は、前記接触信号検出手段が検出する各接触信号に基づいて、接触信号を発した基準信号端子の個々と前記基準信号発生手段との電気的な接続を順次切り替え可能に構成されていることが好ましい。 Further, the contact signal detection means is configured to be able to detect a contact signal when a human body comes into contact with each reference signal terminal, and the terminal switching means is configured to detect each contact signal detected by the contact signal detection means. Based on the above, it is preferable that the electrical connection between each of the reference signal terminals that generate the contact signal and the reference signal generating means can be sequentially switched.
　また、前記電気信号値は、前記基準抵抗器の両端の電位差であることが好ましい。 Further, it is preferable that the electric signal value is a potential difference between both ends of the reference resistor.
　また、前記電極部は、金属線を網目状にして形成されていることが好ましい。 Further, it is preferable that the electrode part is formed by forming a metal wire in a mesh shape.
　また、前記検出手段は、前記基準信号発生手段から前記基準信号端子に印加される交流電流のＯＮ／ＯＦＦ制御を行うことを特徴とすることが好ましい。 Further, it is preferable that the detection unit performs ON / OFF control of an alternating current applied from the reference signal generation unit to the reference signal terminal.
　また、生体認証手段を更に備えており、前記生体認証手段による認証結果に基づいて、前記検出手段は、前記基準信号発生手段から前記基準信号端子に印加される交流電流のＯＮ／ＯＦＦ制御を行うことを特徴とすることが好ましい。 Further, biometric authentication means is further provided, and based on the authentication result by the biometric authentication means, the detection means performs ON / OFF control of the alternating current applied to the reference signal terminal from the reference signal generating means. It is preferable to be characterized by this.
　また、交流電流が印加されている前記基準信号端子を明示する表示手段を更に備えることが好ましい。 Further, it is preferable to further include display means for clearly indicating the reference signal terminal to which an alternating current is applied.
　本発明によれば、誤作動が発生することを効果的に防止することができるタッチパネル装置を提供することができる。 According to the present invention, it is possible to provide a touch panel device that can effectively prevent malfunctions.
本発明の一実施形態に係るタッチパネル装置の概略構成を示す模式図である。It is a mimetic diagram showing a schematic structure of a touch panel device concerning one embodiment of the present invention. タッチパネル装置の原理を示す概略図である。It is the schematic which shows the principle of a touchscreen apparatus. 図１に示すタッチパネル装置が備えるタッチパネルの概略構成断面図である。FIG. 2 is a schematic cross-sectional view of a touch panel included in the touch panel device shown in FIG. 1. 図２に示すタッチパネルの一部を示す平面図である。It is a top view which shows a part of touch panel shown in FIG. 図２に示すタッチパネルの他の一部を示す平面図である。FIG. 4 is a plan view showing another part of the touch panel shown in FIG. 2. 図２に示すタッチパネルの変形例の一部を示す平面図である。It is a top view which shows a part of modification of the touch panel shown in FIG. 図２に示すタッチパネルの変形例の他の一部を示す平面図である。It is a top view which shows another part of the modification of the touchscreen shown in FIG. 図１に示すタッチパネル装置によるタッチ位置検出方法を説明するための説明図である。It is explanatory drawing for demonstrating the touch position detection method by the touch-panel apparatus shown in FIG. 図１に示すタッチパネル装置の変形例を説明するための模式図である。It is a schematic diagram for demonstrating the modification of the touchscreen apparatus shown in FIG. 図２に示すタッチパネルの変形例の一部を示す平面図である。It is a top view which shows a part of modification of the touch panel shown in FIG. 図１に示すタッチパネル装置の変形例を示す模式図である。It is a schematic diagram which shows the modification of the touchscreen apparatus shown in FIG. 図１に示すタッチパネル装置の他の変形例を示す模式図である。It is a schematic diagram which shows the other modification of the touchscreen apparatus shown in FIG. 図１に示すタッチパネル装置の更に他の変形例を示す模式図である。It is a schematic diagram which shows the other modification of the touchscreen apparatus shown in FIG. 図１に示すタッチパネル装置の変形例を示す模式図である。It is a schematic diagram which shows the modification of the touchscreen apparatus shown in FIG. 図１４に示す基準信号端子の変形例を示す概略構成図である。It is a schematic block diagram which shows the modification of the reference signal terminal shown in FIG. 図１に示すタッチパネル装置の変形例を示す模式図である。It is a schematic diagram which shows the modification of the touchscreen apparatus shown in FIG.
　以下、本発明の実態形態にかかるタッチパネル装置について添付図面を参照して説明する。尚、各図面は、構成の理解を容易にするため、実寸比ではなく部分的に拡大又は縮小されている。 Hereinafter, a touch panel device according to an embodiment of the present invention will be described with reference to the accompanying drawings. Each drawing is partially enlarged or reduced to facilitate understanding of the configuration, not the actual size ratio.
　図１は、本発明の一実施形態に係るタッチパネル装置の概略構成を示す模式図であり、図２は、タッチパネル装置の原理を示す概略図である。このタッチパネル装置１００は、図１に示すように、タッチパネル１と、複数の基準抵抗器５と、基準信号端子６と、基準信号発生手段７と、検出手段８とを備えている。なお、このタッチパネル装置１００は、シングルタッチ方式或いはマルチタッチ方式のいずれであってもよい。ここで、シングルタッチ方式とは、一点のみのタッチ位置を検出する方式をいい、マルチタッチ方式とは、同時にタッチされた複数点の位置を検出可能な方式をいう。 FIG. 1 is a schematic diagram illustrating a schematic configuration of a touch panel device according to an embodiment of the present invention, and FIG. 2 is a schematic diagram illustrating a principle of the touch panel device. As illustrated in FIG. 1, the touch panel device 100 includes a touch panel 1, a plurality of reference resistors 5, a reference signal terminal 6, a reference signal generation unit 7, and a detection unit 8. The touch panel device 100 may be either a single touch method or a multi touch method. Here, the single touch method refers to a method that detects a touch position of only one point, and the multi-touch method refers to a method that can detect the positions of a plurality of points touched simultaneously.
　まず、タッチパネル１について説明する。このタッチパネル１は、例えば、ゲーム機や、券売機、会議テーブル、銀行端末（キャッシュディスペンサー）、パソコン、電子手帳、ＰＤＡ、携帯電話等における表示画面上に設置されて、ゲーム機や券売機等の操作を行うために使用されるタッチパネルである。本実施形態におけるタッチパネル１は、静電容量式のタッチパネル１であり、図３の概略断面図に示すように、第１透明面状体１０と第２透明面状体２０とを備えている。第１透明面状体１０は、透明基板１１と、該透明基板１１の一方面側にパターニングされた透明導電膜１２とを備えており、第２透明面状体２０は、透明基板２１と、該透明基板２１の一方面側にパターニングされた透明導電膜２２とを備えている。第１透明面状体１０と第２透明面状体２０とは、それぞれの透明導電膜１２，２２が同一方向を向くようにして（図３においては下方を向くようにして）、粘着層３を介して貼着されている。なお、第１透明面状体１０の透明基板１１の他方面側には、ポリエチレンテレフタレート（ＰＥＴ）やガラス等からなるカバー１３が粘着層１３ａを介して貼着されており、第２透明面状体２０において透明導電膜２２が形成される面側にはシールド部材２３が粘着層２３ａを介して貼着されている。また、図３の構成では、第１透明面状体１０と第２透明面状体２０とは、それぞれの透明導電膜１２，２２が同一方向を向くようにして貼着されているが、透明導電膜１２，２２同士が互いに対向するようにして第１透明面状体１０と第２透明面状体２０とを貼着してもよい。 First, the touch panel 1 will be described. The touch panel 1 is installed on a display screen of a game machine, a ticket vending machine, a conference table, a bank terminal (cash dispenser), a personal computer, an electronic notebook, a PDA, a mobile phone, etc. It is a touch panel used for performing an operation. The touch panel 1 according to the present embodiment is a capacitive touch panel 1 and includes a first transparent planar body 10 and a second transparent planar body 20 as shown in the schematic cross-sectional view of FIG. The first transparent planar body 10 includes a transparent substrate 11 and a transparent conductive film 12 patterned on one surface side of the transparent substrate 11, and the second transparent planar body 20 includes a transparent substrate 21, A transparent conductive film 22 patterned on one surface side of the transparent substrate 21 is provided. The first transparent planar body 10 and the second transparent planar body 20 are formed so that the transparent conductive films 12 and 22 face the same direction (facing downward in FIG. 3), and the adhesive layer 3 It is pasted through. Note that a cover 13 made of polyethylene terephthalate (PET), glass or the like is attached to the other surface side of the transparent substrate 11 of the first transparent planar body 10 via an adhesive layer 13a, so that the second transparent planar shape is provided. A shield member 23 is attached to the surface of the body 20 where the transparent conductive film 22 is formed via an adhesive layer 23a. Moreover, in the structure of FIG. 3, although the 1st transparent planar body 10 and the 2nd transparent planar body 20 are stuck so that each transparent conductive film 12 and 22 may face the same direction, it is transparent. The first transparent planar body 10 and the second transparent planar body 20 may be attached so that the conductive films 12 and 22 face each other.
　透明基板１１，２１は、絶縁層を構成する誘電体基板であり、ポリエチレンテレフタレート（ＰＥＴ）、ポリイミド（ＰＩ）、ポリエチレンナフタレート（ＰＥＮ）、ポリエーテルサルフォン（ＰＥＳ）、ポリエーテルエーテルケトン（ＰＥＥＫ）、ポリカーボネート（ＰＣ）、ポリプロピレン（ＰＰ）、ポリアミド（ＰＡ）、アクリル、非晶性ポリオレフィン系樹脂、環状ポリオレフィン系樹脂、脂肪族環状ポリオレフィン、ノルボルネン系の熱可塑性透明樹脂などの合成樹脂製の可撓性フィルムやこれら２種以上の積層体、或いは、ソーダガラス、無アルカリガラス、ホウケイ酸ガラス、石英ガラスなどのガラス板により形成される。透明基板１１，２１の厚みは、特に限定されないが、例えば、合成樹脂製の可撓性フィルムにより透明基板１１，２１を構成する場合には、１０μｍ～２０００μｍ程度とすることが好ましく、５０μｍ～５００μｍ程度とすることがさらに好ましい。また、ガラス板により透明基板１１，２１を構成する場合には、０．１ｍｍ～５ｍｍ程度とすることが好ましい。 The transparent substrates 11 and 21 are dielectric substrates constituting an insulating layer, and include polyethylene terephthalate (PET), polyimide (PI), polyethylene naphthalate (PEN), polyethersulfone (PES), polyetheretherketone (PEEK). ), Polycarbonate (PC), polypropylene (PP), polyamide (PA), acrylic, amorphous polyolefin resin, cyclic polyolefin resin, aliphatic cyclic polyolefin, norbornene thermoplastic transparent resin, etc. It is formed of a flexible film, a laminate of two or more of these, or a glass plate such as soda glass, alkali-free glass, borosilicate glass, or quartz glass. The thickness of the transparent substrates 11 and 21 is not particularly limited. For example, when the transparent substrates 11 and 21 are formed of a flexible film made of a synthetic resin, the thickness is preferably about 10 μm to 2000 μm, and preferably 50 μm to 500 μm. More preferably, it is about. In the case where the transparent substrates 11 and 21 are made of glass plates, it is preferable that the thickness is about 0.1 mm to 5 mm.
　また、可撓性を有する材料から透明基板１１，２１を形成する場合、当該透明基板１１，２１に剛性を付与するために支持体を貼着してもよい。支持体としては、ガラス板や、ガラスに準ずる硬度を有する樹脂材料を例示することができ、その厚さは１００μｍ以上であることが好ましく、０．２ｍｍ～１０ｍｍであることがより好ましい。 Further, when the transparent substrates 11 and 21 are formed from a flexible material, a support may be attached to give the transparent substrates 11 and 21 rigidity. Examples of the support include a glass plate and a resin material having hardness similar to that of glass, and the thickness is preferably 100 μm or more, more preferably 0.2 mm to 10 mm.
　透明基板１１，２１の一方の主面上に配置されるパターニングされた透明導電膜１２，２２は、図４及び図５に示すように、所定間隔をあけて配置される複数の電極部１２ａ，２２ａの集合体としてそれぞれ形成されている。各電極部１２ａ，２２ａは、互いに平行に延びる帯状の電極部として形成されている。各透明導電膜１２，２２の帯状の電極部１２ａ，２２ａは、互いに直交するように配置されている。また、透明導電膜１２，２２のパターン形状は、本実施形態のものに限定されず、指などの接触ポイントを検出可能である限り、任意の形状とすることが可能である。例えば、図６及び図７に示すように、透明導電膜１２，２２を、複数の菱形状電極部１２ｂ，２２ｂが直線状に連結された構成とし、各透明導電膜１２，２２における菱形状電極部１２ｂ，２２ｂの連結方向が互いに直交し、且つ、平面視において上下の菱形状電極部１２ｂ，２２ｂが重なり合わないように配置してもよい。なお、タッチパネル１の分解能などの動作性能については、第１透明面状体１０と第２透明面状体２０とを重ね合わせた場合に、電極部が存在しない領域を少なくする構成を採用する方が優れている。このような観点から、透明導電膜１２，２２のパターン形状として、矩形状の構成よりも、複数の菱形状電極部１２ｂ，２２ｂが直線状に連結された構成の方が望ましい。 As shown in FIGS. 4 and 5, the patterned transparent conductive films 12 and 22 disposed on one main surface of the transparent substrates 11 and 21 have a plurality of electrode portions 12a and 12a disposed at predetermined intervals. Each is formed as an aggregate of 22a. Each electrode part 12a, 22a is formed as a strip-like electrode part extending in parallel with each other. The strip-shaped electrode portions 12a and 22a of the transparent conductive films 12 and 22 are arranged so as to be orthogonal to each other. Moreover, the pattern shape of the transparent conductive films 12 and 22 is not limited to that of the present embodiment, and can be any shape as long as a contact point such as a finger can be detected. For example, as shown in FIGS. 6 and 7, the transparent conductive films 12 and 22 are configured such that a plurality of rhombus-shaped electrode portions 12 b and 22 b are linearly connected, and the rhombus electrodes in each of the transparent conductive films 12 and 22 are formed. The connecting directions of the portions 12b and 22b may be orthogonal to each other, and the upper and lower rhombic electrode portions 12b and 22b may not be overlapped in plan view. As for the operation performance such as the resolution of the touch panel 1, when the first transparent planar body 10 and the second transparent planar body 20 are overlapped, a configuration in which the area where the electrode portion does not exist is reduced is adopted. Is excellent. From this point of view, the pattern shape of the transparent conductive films 12 and 22 is preferably a configuration in which a plurality of rhomboidal electrode portions 12b and 22b are connected in a straight line rather than a rectangular configuration.
　透明導電膜１２，２２の材料としては、インジウム錫酸化物（ＩＴＯ）、酸化インジウム、アンチモン添加酸化錫、フッ素添加酸化錫、アルミニウム添加酸化亜鉛、カリウム添加酸化亜鉛、シリコン添加酸化亜鉛や、酸化亜鉛－酸化錫系、酸化インジウム－酸化錫系、酸化亜鉛－酸化インジウム－酸化マグネシウム系、酸化亜鉛、スズ酸化膜等の透明導電材料、或いは、スズ、銅、アルミニウム、ニッケル、クロムなどの金属材料、金属酸化物材料を例示することができ、これら２種以上を複合して形成してもよい。また、酸やアルカリに弱い金属単体でも導電材料として使用できる。 The materials of the transparent conductive films 12 and 22 include indium tin oxide (ITO), indium oxide, antimony-added tin oxide, fluorine-added tin oxide, aluminum-added zinc oxide, potassium-added zinc oxide, silicon-added zinc oxide, and zinc oxide. -Transparent conductive materials such as tin oxide, indium oxide-tin oxide, zinc oxide-indium oxide-magnesium oxide, zinc oxide, tin oxide film, or metal materials such as tin, copper, aluminum, nickel, chromium, Metal oxide materials can be exemplified, and two or more of these may be formed in combination. In addition, a simple metal weak against acid or alkali can be used as a conductive material.
　また、カーボンナノチューブやカーボンナノホーン、カーボンナノワイヤ、カーボンナノファイバー、グラファイトフィブリルなどの極細導電炭素繊維や銀素材からなる極細導電繊維をバインダーとして機能するポリマー材料に分散させた複合材を透明導電膜１２，２２の材料として用いることもできる。ここでポリマー材料としては、ポリアニリン、ポリピロール、ポリアセチレン、ポリチオフェン、ポリフェニレンビニレン、ポリフェニレンスルフィド、ポリｐ－フェニレン、ポリ複素環ビニレン、PEDOT：poly(3,4-ethylenedioxythiophene)などの導電性ポリマーを採用することができる。また、ポリエチレンテレフタレート（ＰＥＴ）、ポリエチレンナフタレート（ＰＥＮ）、ポリエーテルサルフォン（ＰＥＳ）、ポリエーテルエーテルケトン（ＰＥＥＫ）、ポリカーボネート（ＰＣ）、ポリプロピレン（ＰＰ）、ポリアミド（ＰＡ）、アクリル、ポリイミド、エポキシ樹脂、フェノール樹脂、脂肪族環状ポリオレフィン、ノルボルネン系の熱可塑性透明樹脂などの非導電性ポリマーを採用することができる。 In addition, a transparent conductive film 12, a composite material in which ultrafine conductive carbon fibers such as carbon nanotubes, carbon nanohorns, carbon nanowires, carbon nanofibers, graphite fibrils, and the like, or ultrafine conductive fibers made of silver are dispersed in a polymer material functioning as a binder, It can also be used as 22 materials. Here, a conductive polymer such as polyaniline, polypyrrole, polyacetylene, polythiophene, polyphenylene vinylene, polyphenylene sulfide, poly p-phenylene, polyheterocyclic vinylene, PEDOT: poly (3,4-ethylenedioxythiophene) should be adopted as the polymer material. Can do. In addition, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethersulfone (PES), polyetheretherketone (PEEK), polycarbonate (PC), polypropylene (PP), polyamide (PA), acrylic, polyimide, Non-conductive polymers such as epoxy resins, phenol resins, aliphatic cyclic polyolefins, norbornene-based thermoplastic transparent resins can be employed.
　透明導電膜１２，２２の材料として、特にカーボンナノチューブを非導電性ポリマー材料に分散させたカーボンナノチューブ複合材を採用した場合、カーボンナノチューブは、直径が一般的には０．８ｎｍ～１．４ｎｍ(1ｎｍ前後)と極めて細いので、１本或いは１束ずつ非導電性ポリマー材料中に分散することでカーボンナノチューブが光透過を阻害することが少なくなり導電膜１２，２２の透明性を確保する上で好ましい。 When a carbon nanotube composite material in which carbon nanotubes are dispersed in a non-conductive polymer material is adopted as the material of the transparent conductive films 12 and 22, the carbon nanotubes generally have a diameter of 0.8 nm to 1.4 nm ( Since it is very thin (around 1 nm), the carbon nanotubes are less likely to impede light transmission by being dispersed in the non-conductive polymer material one by one or in bundles, thereby ensuring the transparency of the conductive films 12 and 22. preferable.
　透明導電膜１２，２２の形成方法は、スパッタリング法、真空蒸着法、イオンプレーティング法などのＰＶＤ法や、ＣＶＤ法、塗工法、印刷法などを例示することができる。また、透明導電膜１２，２２の厚みは、例えばスパッタリング法でＩＴＯ膜を成膜する場合は、６０ｎｍ以下であることが好ましく、３０ｎｍ以下であることがより好ましい。なお、膜厚が５ｎｍ以下では連続した膜になり難く、安定な導電層を形成することは困難である。 Examples of the method for forming the transparent conductive films 12 and 22 include PVD methods such as sputtering, vacuum deposition, and ion plating, CVD, coating, and printing. Moreover, the thickness of the transparent conductive films 12 and 22 is preferably 60 nm or less, and more preferably 30 nm or less when an ITO film is formed by, for example, a sputtering method. Note that when the film thickness is 5 nm or less, it is difficult to form a continuous film, and it is difficult to form a stable conductive layer.
　透明導電膜１２，２２のパターニングは、基板１１，２１上にそれぞれ形成された透明導電膜１２，２２の表面に、所望のパターン形状を有するマスク部を形成して露出部分を酸液などでエッチング除去した後、アルカリ液などによりマスク部を溶解させて行うことができる。 The transparent conductive films 12 and 22 are patterned by forming a mask portion having a desired pattern shape on the surfaces of the transparent conductive films 12 and 22 formed on the substrates 11 and 21, respectively, and etching the exposed portions with an acid solution or the like. After removing, the mask portion can be dissolved with an alkali solution or the like.
　各帯状の電極部１２ａ，２２ａの一端部は、透明基板１１，１２上に形成された配線導体（引き廻し配線）１５を介して、各基準抵抗器５に電気的に接続している。配線導体１５の形成方法は、（A）極微細な導電性粒子を含む導電性ペーストを透明基板１１，２１上にスクリーン印刷する方法（特開２００７－１４２３３４等参照）、（B）銅などの金属箔を透明基板１１，２１上に積層し、金属箔の上にレジストパターンを形成し、金属箔をエッチングする方法（特開２００８－３２８８４等参照）が挙げられる。 One end of each strip- like electrode portion 12a, 22a is electrically connected to each reference resistor 5 via a wiring conductor (leading wiring) 15 formed on the transparent substrates 11, 12. The method of forming the wiring conductor 15 includes (A) a method of screen-printing a conductive paste containing extremely fine conductive particles on the transparent substrates 11 and 21 (see Japanese Patent Application Laid-Open No. 2007-142334, etc.), and (B) copper or the like. A method of laminating a metal foil on the transparent substrates 11 and 21, forming a resist pattern on the metal foil, and etching the metal foil (see Japanese Patent Application Laid-Open No. 2008-32884 etc.) can be mentioned.
　上記（A）の形成方法における導電性粒子としては、銀を主成分とする微粒子を挙げることができる。また、例えば、金、銀、銅、金と銀の合金、金と銅の合金、銀と銅の合金、金と銀と銅の合金のいずれか一を主成分とする微粒子でもよい。また、インジウム錫酸化物（ＩＴＯ）、酸化インジウムに酸化亜鉛を混合した導電性酸化物（ＩＺＯ［ｉｎｄｉｕｍ
ｚｉｎｃ ｏｘｉｄｅ］）、または酸化インジウムに酸化珪素を混合した導電性酸化物（ＩＴＳＯ）を主成分とする微粒子でもよい。 Examples of the conductive particles in the forming method (A) include fine particles containing silver as a main component. Further, for example, fine particles mainly containing any one of gold, silver, copper, an alloy of gold and silver, an alloy of gold and copper, an alloy of silver and copper, and an alloy of gold, silver, and copper may be used. Also, indium tin oxide (ITO), conductive oxide in which indium oxide is mixed with zinc oxide (IZO [indium
zinc oxide]) or fine particles mainly composed of conductive oxide (ITSO) in which silicon oxide is mixed with indium oxide.
　また、配線導体１５の形成方法は、上記（A）（B）の形成方法に限定されることはなく、上記（A）以外のグラビア印刷などの印刷方法や上記（B）以外のフォトリソグラフィを使用してもよい。 Moreover, the formation method of the wiring conductor 15 is not limited to the formation method of said (A) (B), Printing methods other than said (A), such as gravure printing, and photolithography other than said (B) are used. May be used.
　粘着層３は、エポキシ系やアクリル系など、一般的な透明接着剤を用いることができ、ポリエステル系樹脂の透明性フィルムからなる芯材を含むものであってもよい。また、シート状粘着材を複数枚重ね合わせることにより粘着層３を形成してもよく、更に、複数種類のシート状粘着材を重ね合わせて形成してもよい。粘着層３の厚みは、特に指定はないが、実用上では２００μｍ以下であることが好ましい。 The pressure-sensitive adhesive layer 3 can be made of a general transparent adhesive such as epoxy or acrylic, and may include a core made of a polyester resin transparent film. Further, the adhesive layer 3 may be formed by overlapping a plurality of sheet-like adhesive materials, and further, a plurality of types of sheet-like adhesive materials may be overlapped. The thickness of the pressure-sensitive adhesive layer 3 is not particularly specified, but is practically preferably 200 μm or less.
　なお、タッチパネル１は、上述のように、基板上に間隔をあけて複数配置される電極部１２ａ，２２ａ（或いは、菱形状電極部１２ｂ，２２ｂ）を有する構成であれば、静電容量式タッチパネル１であっても、或いは、抵抗膜式タッチパネル１であってもよい。 In addition, as long as the touch panel 1 is the structure which has the electrode parts 12a and 22a (or rhombus-shaped electrode parts 12b and 22b) arrange | positioned at intervals on a board | substrate as mentioned above, a capacitive touch panel 1 or a resistive touch panel 1 may be used.
　各配線導体１５を介して各帯状の電極部１２ａ，２２ａの一端部と電気的に接続される各基準抵抗器５は、タッチパネル１のタッチ位置を検出するために設けられる検出用抵抗器であり、その抵抗値は、各帯状の電極部１２ａ，２２ａの抵抗値以上の値を有するように設定することが好ましい。このように各抵抗値を設定することにより、電極部１２ａ，２２ａのどの部分に交流信号が印加されたとしても、基準抵抗器５において検出される信号レベル（両端間電圧値や電流値）の差があまり大きくならないように設定できるため、タッチパネル１に対するタッチ位置を精度よく検出することが可能となる。また、より好ましくは、各基準抵抗器５の抵抗値が１ｋΩ～１００ｋΩとなるように設定し、各電極部１２ａ，２２ａの両端間の抵抗値が、１００Ω～１０ｋΩとなるように設定する。このように基準抵抗器５及び各電極部１２ａ，２２ａの抵抗値を設定することにより、電極部１２ａ，２２ａのどの部分に交流信号が印加されても、基準抵抗器５を流れる電流値を略一定値とすることが可能となり、基準抵抗器５の両端間電圧値がタッチ位置に依存せず、タッチパネル１に対するタッチ位置を精度よく検出することが可能となる。また、後述のように、複数人が同時にタッチパネル１を操作できるように本実施形態のタッチパネル装置１００を展開する場合、各電極部１２ａ，２２ａの抵抗値が、基準抵抗器５の抵抗値よりも小さい値とすることにより、ある一のタッチパネル操作者のタッチ位置を検出する場合に、そのタッチパネル操作者以外の操作者による画面タッチの影響を受けにくくなり、検出対象者である一のタッチパネル操作者のタッチ位置を精度よく検出することがより一層可能となる。 Each reference resistor 5 electrically connected to one end of each strip- like electrode portion 12a, 22a via each wiring conductor 15 is a detection resistor provided to detect the touch position of the touch panel 1. The resistance value is preferably set so as to have a value equal to or greater than the resistance value of each of the strip-shaped electrode portions 12a and 22a. By setting each resistance value in this way, the signal level (voltage value or current value between both ends) detected by the reference resistor 5 can be applied to any portion of the electrode portions 12a and 22a, regardless of the portion where the AC signal is applied. Since the difference can be set so as not to become so large, the touch position on the touch panel 1 can be detected with high accuracy. More preferably, the resistance value of each reference resistor 5 is set to 1 kΩ to 100 kΩ, and the resistance value between both ends of each electrode portion 12a, 22a is set to 100Ω to 10 kΩ. By setting the resistance values of the reference resistor 5 and the electrode portions 12a and 22a in this way, the value of the current flowing through the reference resistor 5 can be reduced regardless of the portion of the electrode portions 12a and 22a to which an AC signal is applied. A constant value can be set, and the voltage value across the reference resistor 5 does not depend on the touch position, and the touch position on the touch panel 1 can be detected with high accuracy. Further, as will be described later, when the touch panel device 100 of the present embodiment is deployed so that a plurality of persons can operate the touch panel 1 at the same time, the resistance values of the electrode portions 12 a and 22 a are higher than the resistance value of the reference resistor 5. By setting a small value, when detecting the touch position of a touch panel operator, it becomes less susceptible to the screen touch by an operator other than the touch panel operator, and the one touch panel operator who is the detection target This makes it possible to detect the touch position with high accuracy.
　基準信号端子６は、タッチパネル１が表示画面上に設置されるゲーム機や券売機等の装置を操作しようとする操作者（人体）が、指等を接触させる機器であり、ステンレスやアルミニウム等の金属材料や導電性樹脂材料等の導電性材料から形成される露出部６１を備えている。この基準信号端子６は、例えば、ゲーム機や券売機等の装置における筺体や装置近傍に配置されており、タッチパネル１を操作する者が、基準信号端子６の露出部６１に接触しつつタッチ画面を操作できる位置に配置されている。なお、露出部６１の表面の表面保護、さび防止や色付け等のために、該露出部６１の表面に導電性または絶縁性の樹脂等を被覆してもよい。ここで、基準信号端子６の形態としては、種々の形態を採用することができる。例えば、ボタン形状の他、椅子や、足をのせるマット等を基準信号端子６として採用してもよい。椅子を基準信号端子６として採用する場合には、例えば、座席部に露出部６１を設置し、椅子に座った人が、特に意識せずに自然と当該露出部６１に触ることができるように構成してもよい。この場合、座席部に絶縁性のクッションを置いてもよい。また、マットを基準信号端子６として採用する場合には、例えば、人の足が接地されるマット表面に基準信号端子６の露出部６１を配置し、マットに足を載せることによって、人が意識せずに自然と露出部６１に触れるように構成してもよい。 The reference signal terminal 6 is a device in which an operator (human body) trying to operate a device such as a game machine or a ticket vending machine on which the touch panel 1 is installed on the display screen is brought into contact with a finger or the like, such as stainless steel or aluminum. An exposed portion 61 formed of a conductive material such as a metal material or a conductive resin material is provided. The reference signal terminal 6 is disposed in the vicinity of the housing or the apparatus in a device such as a game machine or a ticket machine, for example, and a person operating the touch panel 1 touches the exposed portion 61 of the reference signal terminal 6 while touching the touch screen. It is arranged at a position where can be operated. The surface of the exposed portion 61 may be coated with a conductive or insulating resin for surface protection, rust prevention, coloring, and the like. Here, various forms can be adopted as the form of the reference signal terminal 6. For example, in addition to the button shape, a chair or a mat on which a foot is placed may be adopted as the reference signal terminal 6. When a chair is employed as the reference signal terminal 6, for example, an exposed portion 61 is installed in the seat portion so that a person sitting on the chair can touch the exposed portion 61 naturally without being particularly conscious. It may be configured. In this case, an insulating cushion may be placed on the seat portion. When the mat is used as the reference signal terminal 6, for example, the exposed portion 61 of the reference signal terminal 6 is disposed on the mat surface on which the person's foot is grounded, and the person is conscious by placing the foot on the mat. You may comprise so that the exposed part 61 may be touched naturally, without doing.
　基準信号発生手段７は、基準信号端子６と電気的に接続しており、タッチパネル１の操作者が、基準信号端子６の露出部６１に接触しつつタッチパネル１にタッチした場合に、図２に示すように、基準信号端子６及び人体を介して、交流電流等の入力信号を帯状の電極部１２ａ，２２ａに供給する機能を有している。電極部１２ａ，２２ａに供給された交流電流は、配線導体１５を介して基準抵抗器５に導かれることになる。 The reference signal generating means 7 is electrically connected to the reference signal terminal 6, and when the operator of the touch panel 1 touches the touch panel 1 while touching the exposed portion 61 of the reference signal terminal 6, FIG. As shown, it has a function of supplying an input signal such as an alternating current to the strip-shaped electrode portions 12a and 22a via the reference signal terminal 6 and the human body. The alternating current supplied to the electrode portions 12 a and 22 a is guided to the reference resistor 5 through the wiring conductor 15.
　検出手段８は、各基準抵抗器５における各電気信号値の変化に基づいてタッチパネル１上のタッチ位置を検出する機能を有している。検出手段８が検出する電気信号値としては、各基準抵抗器５の両端間における電圧値、或いは、各基準抵抗器５を流れる電流値等を挙げることができる。この検出手段８は、各基準抵抗器５に電気的に接続するマルチプレクサ等の接続切替回路、マイクロプロセッサユニット（ＭＰＵ）等の演算処理装置、及び、メモリ等の記憶装置等を備えており、各基準抵抗器５における電気信号値の変化を基準抵抗器５毎に順次検出して、タッチ位置を演算により算出できるように構成されている。接続切替回路の接続切替速度は、例えば１００ｆｐｓ程度が好ましい。図８に示すような、Ｘ方向及びＹ方向共に１０本（Ｘ１～Ｘ１０、Ｙ１～Ｙ１０）の帯状の電極部１２ａ，２２ａを有するタッチパネル構成を例にとり、位置検出方法を説明すると、検出手段８は、Ｘ１～Ｘ１０のそれぞれの帯状の電極部１２ａに接続する基準抵抗器５の両端間電圧値（或いは電流値）を計測してその値を記憶する。記憶した合計１０個の電圧値（或いは電流値）に基づいて、Ｘ方向の電圧分布（或いは電流分布）を求め、極大値となる位置を算出し、その位置をＸ方向におけるタッチ位置として認識する。同様に、検出手段８は、Ｙ１～Ｙ１０のそれぞれの帯状の電極部２２ａに接続する基準抵抗器５の両端間電圧値（或いは電流値）を計測してその値を記憶する。記憶した合計１０個の電圧値（或いは電流値）に基づいて、Ｙ方向の電圧分布（或いは電流分布）を求め、極大値となる位置をＹ方向におけるタッチ位置として認識する。 The detecting means 8 has a function of detecting a touch position on the touch panel 1 based on a change in each electric signal value in each reference resistor 5. Examples of the electric signal value detected by the detecting means 8 include a voltage value between both ends of each reference resistor 5, a current value flowing through each reference resistor 5, and the like. The detection means 8 includes a connection switching circuit such as a multiplexer electrically connected to each reference resistor 5, an arithmetic processing unit such as a microprocessor unit (MPU), a storage device such as a memory, and the like. A change in the electrical signal value in the reference resistor 5 is sequentially detected for each reference resistor 5, and the touch position can be calculated by calculation. The connection switching speed of the connection switching circuit is preferably about 100 fps, for example. The position detection method will be described with reference to an example of a touch panel configuration having ten (X1 to X10, Y1 to Y10) strip- like electrode portions 12a and 22a in both the X and Y directions as shown in FIG. Measures the voltage value (or current value) between both ends of the reference resistor 5 connected to each of the belt-like electrode portions 12a of X1 to X10 and stores the value. Based on the total 10 voltage values (or current values) stored, the voltage distribution (or current distribution) in the X direction is obtained, the position where the maximum value is obtained is calculated, and the position is recognized as the touch position in the X direction. . Similarly, the detection means 8 measures the voltage value (or current value) between both ends of the reference resistor 5 connected to each of the belt-like electrode portions 22a of Y1 to Y10 and stores the value. Based on a total of ten voltage values (or current values) stored, a voltage distribution (or current distribution) in the Y direction is obtained, and a position having a maximum value is recognized as a touch position in the Y direction.
　なお、検出手段８において、ＭＰＵ等の演算処理装置が、マルチプレクサ等の接続切替回路の機能をも有するように構成し、当該演算処理装置が各基準抵抗器５と各帯状の電極部１２ａ（２２ａ）との電気的な接続を切り替えるようにしてもよい。また、タッチパネル１の大型化に伴い、タッチパネル１が備える帯状の電極部１２ａ，２２ａの本数も増加することになるが、このような場合には、図９の模式図に示すように、タッチパネル１が備える複数の電極部１２ａ，２２ａを複数のグループに分け、検出手段８が、各グループに含まれる各電極部１２ａ，２２ａの電圧分布（或いは電流分布）の変化を検出する副ＭＰＵ８６を複数備えると共に、各副ＭＰＵ８６の制御や基準信号端子６等の接続切替などをコントロールする主ＭＰＵ８７とを備えるように構成してもよい。 In the detection means 8, an arithmetic processing unit such as an MPU is also configured to have a function of a connection switching circuit such as a multiplexer, and the arithmetic processing unit includes each reference resistor 5 and each strip-shaped electrode portion 12a (22a). ) May be switched. In addition, as the size of the touch panel 1 increases, the number of strip-shaped electrode portions 12a and 22a provided in the touch panel 1 also increases. In such a case, as shown in the schematic diagram of FIG. Are divided into a plurality of groups, and the detection means 8 includes a plurality of sub-MPUs 86 that detect changes in the voltage distribution (or current distribution) of the electrode portions 12a and 22a included in each group. In addition, a main MPU 87 that controls the control of each sub MPU 86 and the connection switching of the reference signal terminal 6 and the like may be provided.
　このような構成のタッチパネル装置１００によれば、タッチパネル１を操作する人が、基準信号端子６に接触しつつタッチパネル１を操作しない限りタッチパネル装置１００は位置検出を行わないため、タッチパネル操作者がタッチ画面操作を行う意思がないにも関わらず、単に、着衣や携帯物、指等が誤ってタッチパネル１に触れることによりタッチパネル装置１００が駆動するという誤作動を効果的に防止することが可能となる。 According to the touch panel device 100 having such a configuration, the touch panel operator 100 does not detect the position unless the person operating the touch panel 1 operates the touch panel 1 while touching the reference signal terminal 6. Although there is no intention to perform the screen operation, it is possible to effectively prevent a malfunction in which the touch panel device 100 is driven simply by accidentally touching the touch panel 1 with clothes, a portable object, a finger, or the like. .
　以上、本発明に係るタッチパネル装置１００の一実施形態について説明したが、具体的構成は、上記実施形態に限定されない。例えば、帯状の電極部１２ａ，２２ａの代わりに、図１０に示すように、アイランド状の複数の電極部１２ｃの集合体として、透明導電膜１２を構成してもよい。透明導電膜１２をアイランド状の電極部１２ｃの集合体として形成する場合、各電極部１２ｃに、配線導体１５がそれぞれ接続するように構成するため、配線導体１５の一部は、各電極部１２ｃの間に配置される。なお、図１０に示すように、アイランド状の複数の電極部１２ｃの集合体として、透明導電膜１２を形成し、各電極部１２ｃに、配線導体１５がそれぞれ接続するように構成した場合、当該電極部１２を有する第１透明面状体１０（或いは第２透明面状体２０）のみでタッチパネル１としての機能を備える。 The embodiment of the touch panel device 100 according to the present invention has been described above, but the specific configuration is not limited to the above embodiment. For example, instead of the strip-shaped electrode portions 12a and 22a, the transparent conductive film 12 may be configured as an aggregate of a plurality of island-shaped electrode portions 12c as shown in FIG. When the transparent conductive film 12 is formed as an aggregate of island-shaped electrode portions 12c, the wiring conductors 15 are connected to the respective electrode portions 12c, so that a part of the wiring conductor 15 is part of each electrode portion 12c. It is arranged between. As shown in FIG. 10, when the transparent conductive film 12 is formed as an aggregate of a plurality of island-shaped electrode portions 12c and the wiring conductors 15 are connected to the respective electrode portions 12c, Only the first transparent planar body 10 (or the second transparent planar body 20) having the electrode portion 12 has a function as the touch panel 1.
　また、上記実施例において、タッチパネル１が有する各電極部１２ａ，２２ａを、金属線により網目状となるように構成してもよい。網目状の具体例としては、金属線を格子状にした形状を挙げることができる。格子状形状としては、透明基板１の各辺に平行となるように金属線を配置して格子状形状を形成してもよく、透明基板１の各辺に対して所定角度傾くように金属線を配置して格子状形状を形成してもよい。金属線は、極細線であり、金属線同士は略等間隔に並べられている。金属線の線幅は、５μｍ～５０μｍの範囲とすることが好ましく、特に１０μｍ～３０μｍの範囲とすることが好ましい。また、隣接する金属線同士の間隔は、１００μｍ～１０００μｍの範囲とすることが好ましい。 Further, in the above-described embodiment, the electrode portions 12a and 22a included in the touch panel 1 may be configured to have a mesh shape with a metal wire. As a specific example of the mesh shape, a shape in which metal wires are arranged in a lattice shape can be given. As the grid shape, metal lines may be formed so as to be parallel to each side of the transparent substrate 1, and the grid shape may be formed. The metal line is inclined at a predetermined angle with respect to each side of the transparent substrate 1. May be arranged to form a lattice shape. The metal wires are very thin wires, and the metal wires are arranged at substantially equal intervals. The line width of the metal wire is preferably in the range of 5 μm to 50 μm, particularly preferably in the range of 10 μm to 30 μm. Further, the interval between adjacent metal lines is preferably in the range of 100 μm to 1000 μm.
　電極部を構成する金属線の形成方法は、上述の配線導体１５の形成方法と同様であり、（A）極微細な導電性粒子を含む導電性ペーストを透明基板１１，２１上にスクリーン印刷する方法、（B）銅などの金属箔を透明基板１１，２１上に積層し、金属箔の上にレジストパターンを形成し、金属箔をエッチングする方法が挙げられる。 The method of forming the metal wire constituting the electrode part is the same as the method of forming the wiring conductor 15 described above, and (A) screen-printing a conductive paste containing ultrafine conductive particles on the transparent substrates 11 and 21. And (B) a method in which a metal foil such as copper is laminated on the transparent substrates 11 and 21, a resist pattern is formed on the metal foil, and the metal foil is etched.
　上記（A）の形成方法における導電性粒子としては、銀を主成分とする微粒子を挙げることができる。また、例えば、金、銀、銅、金と銀の合金、金と銅の合金、銀と銅の合金、金と銀と銅の合金のいずれか一を主成分とする微粒子でもよい。また、インジウム錫酸化物（ＩＴＯ）、酸化インジウムに酸化亜鉛を混合した導電性酸化物（ＩＺＯ［ｉｎｄｉｕｍ
ｚｉｎｃ ｏｘｉｄｅ］）、または酸化インジウムに酸化珪素を混合した導電性酸化物（ＩＴＳＯ）を主成分とする微粒子でもよい。 Examples of the conductive particles in the forming method (A) include fine particles containing silver as a main component. Further, for example, fine particles mainly containing any one of gold, silver, copper, an alloy of gold and silver, an alloy of gold and copper, an alloy of silver and copper, and an alloy of gold, silver, and copper may be used. Also, indium tin oxide (ITO), conductive oxide in which indium oxide is mixed with zinc oxide (IZO [indium
zinc oxide]) or fine particles mainly composed of conductive oxide (ITSO) in which silicon oxide is mixed with indium oxide.
　また、上記実施例においては、透明基板１１，２１の一方面側に形成された複数の帯状の電極部１２ａ，２２ａを有する第１透明面状体１０及び第２透明面状体２０を、粘着層３を介して貼着することによりタッチパネル１を構成しているが、このような構成に特に限定されず、例えば、一つの透明基板の一方面側に複数の帯状の電極部１２ａを形成するとともに、これら帯状の電極部１２ａに対して直行する方向に伸びるように、当該透明基板の他方面側に複数の帯状の電極部２２ａを形成してタッチパネル１を構成してもよい。 Moreover, in the said Example, the 1st transparent planar body 10 and the 2nd transparent planar body 20 which have the some strip | belt-shaped electrode parts 12a and 22a formed in the one surface side of the transparent substrates 11 and 21 are adhere | attached. The touch panel 1 is configured by being attached via the layer 3, but is not particularly limited to such a configuration. For example, a plurality of strip-shaped electrode portions 12 a are formed on one surface side of one transparent substrate. In addition, the touch panel 1 may be configured by forming a plurality of strip-shaped electrode portions 22a on the other surface side of the transparent substrate so as to extend in a direction perpendicular to the strip-shaped electrode portions 12a.
　また、上記実施形態におけるタッチパネル装置１００は、単一の基準信号端子６を備える構成であるが、例えば、図１１に示すように、基準信号端子６を複数備えると共に、複数の基準信号端子６および基準信号発生手段７の間に配置され、両者を電気的に接続する端子切替手段９を備えるように構成してもよい。端子切替手段９は、検出手段８が備えるＭＰＵ等の演算処理装置に接続しており、当該演算処理装置の作動により、基準信号発生手段７と複数の基準信号端子６の個々との電気的な接続を順次切り替え可能に構成されている。この端子切替手段９としては、例えばマルチプレクサのような切替回路を用いることができる。なお、端子切替手段９の切替速度は、例えば１００ｆｐｓ程度が好ましい。このような構成を採用することにより、複数の人が、同時に基準信号端子６にそれぞれ接触しつつタッチパネル１にタッチする場合であっても、各人のタッチ位置をそれぞれ検出することが可能になる。特に、検出手段８が、端子切替手段９により基準信号発生手段７と電気的に順次接続された基準信号端子６毎に、各基準抵抗器５における各電気信号値の変化に基づいてタッチパネル１上のタッチ位置を検出可能に構成されていることが好ましい。つまり、検出手段８が、端子切替手段９による各基準信号端子６と基準信号発生手段７との接続切り替えタイミングに同期して、各基準信号端子６に接触する人のタッチパネル１のタッチ位置を個別に検出できるように構成されることが好ましい。なお、複数人が同時にタッチパネル１を操作できるようにタッチパネル装置１００を構成する場合においても、このタッチパネル装置１００をシングルタッチ方式或いはマルチタッチ方式のいずれに構成してもよい。なお、複数人が同時にタッチパネル１を操作できるように構成したタッチパネル装置１００におけるマルチタッチ方式とは、各人毎に、同時にタッチされた複数点の位置を検出可能な方式をいう。 In addition, the touch panel device 100 according to the embodiment has a configuration including a single reference signal terminal 6. For example, as illustrated in FIG. 11, the touch panel device 100 includes a plurality of reference signal terminals 6 and a plurality of reference signal terminals 6 and You may comprise so that the terminal switching means 9 which is arrange | positioned between the reference signal generation means 7 and electrically connects both may be provided. The terminal switching means 9 is connected to an arithmetic processing device such as an MPU provided in the detecting means 8, and the electrical operation between the reference signal generating means 7 and each of the plurality of reference signal terminals 6 is performed by the operation of the arithmetic processing device. The connection can be switched sequentially. As the terminal switching means 9, for example, a switching circuit such as a multiplexer can be used. The switching speed of the terminal switching means 9 is preferably about 100 fps, for example. By adopting such a configuration, even when a plurality of people touch the touch panel 1 while simultaneously touching the reference signal terminal 6 at the same time, it becomes possible to detect the touch position of each person. . In particular, the detection means 8 is provided on the touch panel 1 on the basis of the change in each electric signal value in each reference resistor 5 for each reference signal terminal 6 electrically connected to the reference signal generation means 7 by the terminal switching means 9 in sequence. It is preferable that the touch position can be detected. That is, the detection means 8 individually detects the touch position of the touch panel 1 of the person who touches each reference signal terminal 6 in synchronization with the connection switching timing between each reference signal terminal 6 and the reference signal generation means 7 by the terminal switching means 9. It is preferable to be configured so that it can be detected. Even when the touch panel device 100 is configured so that a plurality of people can operate the touch panel 1 at the same time, the touch panel device 100 may be configured in either a single touch method or a multi-touch method. Note that the multi-touch method in the touch panel device 100 configured so that a plurality of people can operate the touch panel 1 at the same time is a method capable of detecting the positions of a plurality of points touched simultaneously for each person.
　また、端子切替手段９が、基準信号発生手段７と接続する基準信号端子６以外の基準信号端子６に対して所定の基準電位へ接続可能に構成されていることが好ましい。このような構成を採用することにより、タッチパネル１における位置検出を精度よく検出することが可能となる。具体的に説明すると、複数の人が同時に各基準信号端子６に接触しつつ、それぞれタッチパネル１にタッチしている状況においては、基準信号発生手段７と各基準信号端子６との接続切り替えを行って、基準信号発生手段７と基準信号端子６との接続を解除したとしても、基準信号端子６およびその基準信号端子６に接触する人体を介して電気的なノイズが、タッチパネル１の電極部に供給され、位置検出を行う対象者のタッチ位置を正確に検出することが困難になる場合もある。このような場合であっても、上述のように、端子切替手段９が、基準信号発生手段７と接続する基準信号端子６以外の基準信号端子６に対して所定の基準電位を接続することにより、上記ノイズがタッチパネル１の電極部に供給されることを効果的に防止することが可能となる。 Further, it is preferable that the terminal switching means 9 is configured to be connectable to a predetermined reference potential with respect to the reference signal terminals 6 other than the reference signal terminal 6 connected to the reference signal generating means 7. By adopting such a configuration, position detection on the touch panel 1 can be accurately detected. More specifically, in a situation where a plurality of people are simultaneously touching the reference signal terminals 6 and touching the touch panel 1, the connection between the reference signal generating means 7 and each reference signal terminal 6 is switched. Thus, even if the connection between the reference signal generating means 7 and the reference signal terminal 6 is released, electrical noise is applied to the electrode portion of the touch panel 1 through the reference signal terminal 6 and the human body contacting the reference signal terminal 6. In some cases, it is difficult to accurately detect the touch position of the subject who is supplied and performs position detection. Even in such a case, as described above, the terminal switching unit 9 connects the predetermined reference potential to the reference signal terminal 6 other than the reference signal terminal 6 connected to the reference signal generating unit 7. Thus, it is possible to effectively prevent the noise from being supplied to the electrode portion of the touch panel 1.
　また、複数人が同時にタッチパネル１を操作できるようにタッチパネル装置１００を構成する場合、例えば、図１２に示すような構成を採用してもよい。すなわち、複数の基準信号端子６を複数のグループ（図１２においては２グループ）に分け、グループ毎に異なる端子切替手段９ａ，９ｂ及び基準信号発生手段７ａ，７ｂに接続するように構成する。このとき、各基準信号発生手段７ａ，７ｂが供給する交流電流の周波数を異なるように設定することが好ましい。このように異なる周波数の交流電流を供給することにより、検出手段８において、異なる周波数を有する入力信号（電極部１２ａ，２２ａを介して基準抵抗器５に流れる交流電流）のそれぞれに基づいて、複数人のタッチ位置を同時に算出することが可能になるため、タッチパネル１を操作する人数が増えたとしても、位置検出速度（サンプリングレート）を低下させることなく迅速に各人のタッチ位置を検出することが可能になる。 Further, when the touch panel device 100 is configured so that a plurality of persons can operate the touch panel 1 at the same time, for example, a configuration as shown in FIG. 12 may be adopted. That is, the plurality of reference signal terminals 6 are divided into a plurality of groups (two groups in FIG. 12) and connected to different terminal switching means 9a, 9b and reference signal generating means 7a, 7b for each group. At this time, it is preferable to set the frequency of the alternating current supplied by each reference signal generating means 7a, 7b to be different. By supplying alternating currents having different frequencies in this manner, the detection means 8 can select a plurality of input signals having different frequencies (alternating currents flowing to the reference resistor 5 via the electrode portions 12a and 22a). Since it becomes possible to calculate the touch position of a person at the same time, even if the number of persons operating the touch panel 1 increases, it is possible to quickly detect the touch position of each person without reducing the position detection speed (sampling rate). Is possible.
　また、上記実施形態においては、図１に示すように、各配線導体１５を介して各帯状の電極部１２ａ，２２ａの一端部に基準抵抗器５がそれぞれ接続される構成を備えると共に、検出手段８は、各基準抵抗器５に電気的に接続するマルチプレクサ等の接続切替回路を備え、各基準抵抗器５における電気信号値の変化を順次検出できるように構成されているが、このような構成に特に限定されない。例えば、図１３に示すように、タッチパネル１が備える帯状の複数の電極部１２ａ，２２ａを複数のグループに分け、各グループに含まれる電極部１２ａ，２２ａに接続する接続切替回路８５を複数（図１３においては４つ）備えると共に、複数の接続切替回路８５のそれぞれに接続する基準抵抗器５を備える構成を採用してもよい。このような構成によれば、グループ化された数本の電極部１２ａ，２２ａ毎に対して、各接続切替回路８５（マルチプレクサ等）が各基準抵抗器５との接続を切り替えて、各基準抵抗器５に入力される電気信号値の変化を並列的に検出することが可能となり、タッチパネル１上のタッチ位置を迅速に検出することが可能となる。 Moreover, in the said embodiment, as shown in FIG. 1, while having the structure by which the reference resistor 5 is each connected to the one end part of each strip | belt-shaped electrode parts 12a and 22a via each wiring conductor 15, detection means 8 includes a connection switching circuit such as a multiplexer that is electrically connected to each reference resistor 5, and is configured to sequentially detect a change in the electric signal value in each reference resistor 5. It is not specifically limited to. For example, as shown in FIG. 13, a plurality of strip- like electrode portions 12a and 22a included in the touch panel 1 are divided into a plurality of groups, and a plurality of connection switching circuits 85 connected to the electrode portions 12a and 22a included in each group (see FIG. 13). 13) and a reference resistor 5 connected to each of the plurality of connection switching circuits 85 may be employed. According to such a configuration, each of the connection switching circuits 85 (such as a multiplexer) switches the connection with each reference resistor 5 for each of several grouped electrode portions 12a and 22a, and each reference resistor 5 It becomes possible to detect the change of the electric signal value input to the device 5 in parallel, and to quickly detect the touch position on the touch panel 1.
　また、上記実施形態において、基準信号端子６に人体が接触した際の接触信号を検出する接触信号検出手段６２を更に備えるように構成してもよい。例えば、図１４に示すように、基準信号端子６が備える露出部６１を、絶縁領域部６１１と、当該絶縁領域部６１１を間に挟んで配置される一対の導電性領域部６１２ａ、６１２ｂとを有するように形成すると共に、接触信号検出手段６２が、絶縁領域部６１１を跨いだ一対の導電性領域部６１２ａ、６１２ｂの人体接触により発生する導通信号を接触信号として検出するように構成してもよい。具体的に説明すると、図１４においては、円形状の導電性領域部６１２ａの外周側にリング状の絶縁領域部６１１を配置し、この絶縁領域部６１１の外周側にリング状の導電性領域部６１２ｂを配置することにより露出部６１を構成している。そして、絶縁領域部６１１を跨いで指等の人体部分が各導電性領域部６１２ａ、６１２ｂに接触した場合に、交流信号等の導通信号が外側のリング状の導電性領域部６１２ｂから内側の導電性領域部６１２ａに伝達されるように構成されており、接触信号検出手段６２が、内側の導電性領域部６１２ａに流れる導通信号を検出できるように構成されている。なお、接触信号検出手段６２が検出した導通信号（接触信号）は、検出手段８に伝達されるように構成している。 Further, in the above embodiment, it may be configured to further include contact signal detection means 62 for detecting a contact signal when a human body comes into contact with the reference signal terminal 6. For example, as shown in FIG. 14, the exposed portion 61 provided in the reference signal terminal 6 includes an insulating region portion 611 and a pair of conductive region portions 612a and 612b arranged with the insulating region portion 611 interposed therebetween. The contact signal detecting means 62 may be configured to detect a conduction signal generated by human contact between the pair of conductive region portions 612a and 612b straddling the insulating region portion 611 as a contact signal. Good. Specifically, in FIG. 14, a ring-shaped insulating region 611 is disposed on the outer peripheral side of the circular conductive region 612 a, and the ring-shaped conductive region is formed on the outer peripheral side of the insulating region 611. The exposed portion 61 is configured by disposing 612b. When a human body part such as a finger contacts the conductive region parts 612a and 612b across the insulating region part 611, a conduction signal such as an alternating current signal is transmitted from the outer ring-shaped conductive region part 612b to the inner conductive part. The contact signal detecting means 62 is configured to detect a conduction signal flowing through the inner conductive region 612a. The conduction signal (contact signal) detected by the contact signal detection means 62 is configured to be transmitted to the detection means 8.
　なお、基準信号端子６が備える露出部６１の形状は図１４に示すような形状に特に限定されず、例えば、図１５（ａ）や（ｂ）に示すような形状を採用してもよい。図１５（ａ）に示す露出部６１の形状は、櫛歯状に各導電性領域部６１２ａ、６１２ｂを形成し、一方の導電性領域部６１２ａの櫛歯部分を、絶縁領域部６１１を介して、他方の導電性領域部６１２ｂの櫛歯間に配置するように構成している。また、図１５（ｂ）に示す露出部６１の形状は、二重螺旋状となるように各導電性領域部６１２ａ、６１２ｂを構成し、各導電性領域部６１２ａ、６１２ｂ間に絶縁領域部６１１を配置するように構成している。 It should be noted that the shape of the exposed portion 61 provided in the reference signal terminal 6 is not particularly limited to the shape as shown in FIG. 14, and for example, the shape as shown in FIGS. 15A and 15B may be adopted. The shape of the exposed portion 61 shown in FIG. 15A is that each conductive region portion 612a, 612b is formed in a comb-like shape, and the comb-tooth portion of one conductive region portion 612a is interposed via the insulating region portion 611. The other conductive region portion 612b is arranged between the comb teeth. Further, the shape of the exposed portion 61 shown in FIG. 15B is configured such that the conductive region portions 612a and 612b are formed in a double spiral shape, and the insulating region portion 611 is provided between the conductive region portions 612a and 612b. Are configured to be arranged.
　また、基準信号端子６及び接触信号検出手段６２の構成としては、基準信号端子６に人体が接触した際の接触信号を発生するような構成であれば特に限定されず、上述した構成の他、例えば、静電容量式タッチスイッチを基準信号端子６に組み込み、静電容量の変化を接触信号として接触信号検出手段６２が検出するように構成してもよい。或いは、抵抗膜式タッチスイッチや押しボタン式スイッチを基準信号端子６に組み込み、これら抵抗膜式タッチスイッチや押しボタン式スイッチに対する押圧状態を電気的な信号として発生させ、この信号を接触信号として接触信号検出手段６２が検出するように構成してもよい。 Further, the configuration of the reference signal terminal 6 and the contact signal detecting means 62 is not particularly limited as long as it generates a contact signal when a human body comes into contact with the reference signal terminal 6. For example, a capacitive touch switch may be incorporated in the reference signal terminal 6 and the contact signal detection unit 62 may detect a change in capacitance as a contact signal. Alternatively, a resistive touch switch or push button switch is incorporated into the reference signal terminal 6 to generate a pressing state with respect to the resistive touch switch or push button switch as an electrical signal, and this signal is contacted as a contact signal. You may comprise so that the signal detection means 62 may detect.
　このように、基準信号端子６に人体が接触した際の接触信号を検出する接触信号検出手段６２を更に備える構成を採用する場合、基準信号端子６に人体が接触した際に発生する接触信号に基づいて、タッチパネル装置１００の駆動を種々コントロールすることが可能となる。例えば、タッチパネル装置１００やこのタッチパネル装置１００が設置されるゲーム機や券売機等の省電力化を図ることができる。また、タッチパネル装置１００のタッチ位置検出の応答性を高めることができる。 As described above, when the configuration further including the contact signal detecting means 62 for detecting the contact signal when the human body contacts the reference signal terminal 6, the contact signal generated when the human body contacts the reference signal terminal 6 is used. Based on this, it is possible to control the driving of the touch panel device 100 in various ways. For example, it is possible to save power in the touch panel device 100 or a game machine or a ticket machine in which the touch panel device 100 is installed. Moreover, the responsiveness of the touch position detection of the touch panel apparatus 100 can be improved.
　具体的に省電力化可能なタッチパネル装置１００の構成について以下説明する。まず、タッチパネル装置１００は、上述のように、検出手段８を備えているが、この検出手段８は、タッチパネル１の位置検出のためにＭＰＵ等の演算処理装置やマルチプレクサ等の接続切替回路、メモリ等の記憶装置、Ａ／Ｄ変換器等を備えており、これら機器は、人がタッチパネル１のタッチ操作を行っていない場合であっても多くの電力を消費する。更に、タッチパネル装置１００は、ゲーム機や券売機等の表示装置に設置されて使用されるが、表示装置に表示画面を常に表示させておく場合には多くの電力を消費する。 The configuration of the touch panel device 100 that can specifically save power will be described below. First, the touch panel device 100 includes the detection unit 8 as described above. The detection unit 8 is used for detecting the position of the touch panel 1, such as an arithmetic processing unit such as an MPU, a connection switching circuit such as a multiplexer, and a memory. Storage devices, A / D converters, and the like, and these devices consume a lot of power even when a person is not performing a touch operation on the touch panel 1. Furthermore, the touch panel device 100 is used by being installed in a display device such as a game machine or a ticket vending machine, but consumes a lot of power when a display screen is always displayed on the display device.
　そこで、例えば、タッチパネル装置１００が、通常動作を行ってタッチ位置を検出可能な通常モードと、通常モードよりも消費電力が少ないスリープモードとの切り替えが可能な制御手段を備えるように構成し、当該制御手段が、接触信号検出手段６２が検出する接触信号に基づいて（接触信号を検知して）、スリープモードから通常モードに切り替えることができるように構成することにより、タッチパネル装置１００の省電力化を図ることが可能となる。ここで、スリープモードの形態としては、例えば、タッチパネル装置１００が設置されるゲーム機や券売機等の表示装置に対してのみ電力供給を停止する形態や、該表示装置に加えてタッチパネル装置１００が備える検出手段８における一部の機器（回路を含む）に対する電力供給を停止する形態等、種々想定できるが、特に、スリープモードから通常モードに復帰するために最低限必要な機器（回路を含む）以外の機器（回路を含む）に対して電力供給を停止する形態が好ましい。また、通常モードからスリープモードへの移行形態としては、例えば、所定時間、タッチパネル１に対するタッチ操作が無い状態が継続する場合（例えば、５秒間タッチ操作が無い状態等）に、自動的に通常モードからスリープモードに移行するように構成することができる。或いは、接触信号検出手段６２が接触信号を検出しない場合に、自動的にスリープモードに移行するように構成してもよい。なお、制御手段は、検出手段８内に組み込んでもよく、或いは、検出手段８とは別個独立して設けるように構成してもよい。また、検出手段８が備えるＭＰＵ（演算処理装置）が制御手段の機能を果たすように構成してもよい。 Therefore, for example, the touch panel device 100 is configured to include a control unit capable of switching between a normal mode in which a normal operation can be performed and a touch position can be detected and a sleep mode in which power consumption is lower than that in the normal mode. By configuring the control means to be able to switch from the sleep mode to the normal mode based on the contact signal detected by the contact signal detection means 62 (detecting the contact signal), power saving of the touch panel device 100 is achieved. Can be achieved. Here, as a form of the sleep mode, for example, a form in which power supply is stopped only to a display device such as a game machine or a ticket vending machine in which the touch panel device 100 is installed, or the touch panel device 100 in addition to the display device. Various forms such as a mode of stopping power supply to some devices (including circuits) in the detection means 8 provided can be assumed, but in particular, the minimum devices (including circuits) required for returning from the sleep mode to the normal mode. A mode in which power supply to devices other than the above (including circuits) is stopped is preferable. Further, as a mode of transition from the normal mode to the sleep mode, for example, when a state where there is no touch operation on the touch panel 1 continues for a predetermined time (for example, a state where there is no touch operation for 5 seconds, etc.), Can be configured to shift to a sleep mode. Or you may comprise so that it may transfer to sleep mode automatically, when the contact signal detection means 62 does not detect a contact signal. The control means may be incorporated in the detection means 8 or may be configured to be provided separately from the detection means 8. Further, an MPU (arithmetic processing unit) provided in the detection unit 8 may function as a control unit.
　次に、タッチパネル装置１００のタッチ位置検出の応答性を高める構成について、複数の人が同時に各基準信号端子６にそれぞれ接触しつつタッチパネル１にタッチした場合において、各人のタッチ位置をそれぞれ検出できるように構成したタッチパネル装置１００（図１１に示すタッチパネル装置１００）に関して説明する。例えば、図１６に示すように、接触信号検出手段６２が、各基準信号端子６（６ａ～６ｄ）に人体が接触した際の接触信号をそれぞれ検出できるように構成すると共に、検出手段８が、各接触信号検出手段６２が検出する各接触信号に基づいて人体が接触している（タッチしている）基準信号端子６（６ａ～６ｄ）を判別し、接触信号を発した基準信号端子６（６ａ～６ｄ）に対してのみ、各基準抵抗器５における各電気信号値の変化に基づいてタッチパネル１上のタッチ位置を検出できるように構成する。このような構成を採用した場合、例えば、図１６に示すように基準信号端子６ａ～６ｄのうち、端子６ａ及び６ｂのみに人の指等が接触している場合に、当該端子６ａ及び６ｂに対してのみ検出手段８がタッチ位置の検出演算を行い、指等が接触していない端子６ｃおよび６ｄに対してはタッチ位置の検出演算を行わないように制御することができるため、タッチ位置検出速度が速くなり、タッチパネル装置１００の応答性を高めることが可能となる。 Next, regarding the configuration for improving the responsiveness of touch position detection of the touch panel device 100, when a plurality of people touch the touch panel 1 while simultaneously touching the respective reference signal terminals 6, it is possible to detect the touch positions of each person. The touch panel device 100 configured as described above (the touch panel device 100 shown in FIG. 11) will be described. For example, as shown in FIG. 16, the contact signal detection means 62 can be configured to detect a contact signal when a human body comes into contact with each reference signal terminal 6 (6a to 6d), and the detection means 8 includes Based on each contact signal detected by each contact signal detecting means 62, the reference signal terminal 6 (6a to 6d) with which the human body is in contact (touched) is discriminated, and the reference signal terminal 6 (sends the contact signal) ( Only for 6a to 6d), the touch position on the touch panel 1 can be detected based on the change of each electric signal value in each reference resistor 5. When such a configuration is adopted, for example, as shown in FIG. 16, when a human finger or the like is in contact with only the terminals 6a and 6b among the reference signal terminals 6a to 6d, the terminals 6a and 6b are connected to the terminals 6a and 6b. Only the detection means 8 can perform a touch position detection calculation, and control can be performed so that the touch position detection calculation is not performed for the terminals 6c and 6d that are not touched by a finger or the like. The speed is increased and the responsiveness of the touch panel device 100 can be improved.
　次に、タッチパネル装置１００のタッチ位置検出の応答性を高めるその他の構成について説明する。具体的には、上述の図１６に示すように、接触信号検出手段６２を、各基準信号端子６に人体が接触した際の接触信号をそれぞれ検出可能に構成すると共に、接触信号検出手段６２が検出する各接触信号に基づいて、端子切替手段９が、接触信号を発した基準信号端子６に対してのみ、基準信号発生手段７との電気的な接続を順次切り替え可能に構成してもよい。より具体的には、検出手段８におけるＭＰＵ（演算処理装置）に入力された接触信号に基づいて、ＭＰＵ（演算処理装置）が端子切替手段９を制御し、該端子切替手段９が、接触信号を発した基準信号端子６に対してのみ、基準信号発生手段７との電気的な接続を順次切り替えるように構成している。このような構成を採用した場合、人体が接触していない基準信号端子６と基準信号発生手段７との電気的な接続を省略し、実際に人体が接触している基準信号端子６に対してのみ基準信号発生手段７との電気的な接続がなされることとなるため、タッチパネル１にタッチした場合の各人のタッチ位置検出速度を速めることができる。 Next, another configuration for improving the responsiveness of touch position detection of the touch panel device 100 will be described. Specifically, as shown in FIG. 16 described above, the contact signal detection unit 62 is configured to be able to detect a contact signal when a human body contacts each reference signal terminal 6, and the contact signal detection unit 62 includes Based on each contact signal to be detected, the terminal switching unit 9 may be configured to be capable of sequentially switching the electrical connection with the reference signal generating unit 7 only for the reference signal terminal 6 that has issued the contact signal. . More specifically, the MPU (arithmetic processing unit) controls the terminal switching unit 9 based on the contact signal input to the MPU (arithmetic processing unit) in the detection unit 8, and the terminal switching unit 9 The electrical connection with the reference signal generating means 7 is sequentially switched only with respect to the reference signal terminal 6 that has emitted the signal. When such a configuration is adopted, the electrical connection between the reference signal terminal 6 that is not in contact with the human body and the reference signal generating means 7 is omitted, and the reference signal terminal 6 that is actually in contact with the human body is omitted. Since only the reference signal generating means 7 is electrically connected, the touch position detection speed of each person when touching the touch panel 1 can be increased.
　また、上記実施形態においては、基準信号端子６をゲーム機や券売機等の装置における筺体や装置近傍に配置する構成について説明したが、このような構成に特に限定されない。例えば、タッチパネル１を操作する使用者が装着する操作専用グローブ（手袋）をタッチパネル装置１００が備えるように構成し、当該操作専用グローブの内側（指を挿入する指入れ部分や、手のひらと接触する部分、手の甲と接触する部分等）に基準信号端子６を配置するように構成してもよい。このような構成によれば、操作専用グローブを装着しなければタッチパネル１の操作を行うことができないため、タッチパネル１の操作を行う意思がない人がタッチパネル１に触れたような場合に、タッチパネル装置１００が駆動（位置検出）することを効果的に防止することができる。 In the above-described embodiment, the configuration in which the reference signal terminal 6 is disposed in the vicinity of the housing or the device in a device such as a game machine or a ticket vending machine has been described. However, the present invention is not particularly limited to such a configuration. For example, the touch panel device 100 is configured to include an operation-specific glove (glove) worn by a user who operates the touch panel 1, and the inside of the operation-specific glove (a part for inserting a finger or a part in contact with the palm) The reference signal terminal 6 may be arranged on the back of the hand. According to such a configuration, since the touch panel 1 cannot be operated unless the operation-dedicated glove is attached, the touch panel device can be used when a person who does not intend to operate the touch panel 1 touches the touch panel 1. It is possible to effectively prevent 100 from being driven (position detection).
　また、複数の基準信号端子６のそれぞれを、操作専用グローブの各指入れ部分の先端部等に配置し、タッチパネル１を操作する使用者の各指によるタッチ位置をそれぞれ検出できるようにタッチパネル装置１００を構成してもよい。このような構成を採用する場合、例えば、同時に複数のタッチ信号（画面タッチ）を要求するような一人用ゲームソフトの操作手段としてタッチパネル装置１００を活用することができる。また、ピアノの鍵盤が表示される表示画面にタッチパネル１を設置して、例えば、どの指でどの鍵盤を弾くのが正しいのかといったピアノ演奏時の正しい指使いを習得するためのピアノ練習装置操作手段として活用することも可能となる。ここで、このような構成を採用する場合、各指に配置した各基準信号端子間の静電容量結合を防止する観点から、各指と各基準信号端子6との間に絶縁層を介してシールド層を設けた構成とする。なお、タッチパネル1を損傷させないために各基準信号端子6を被覆材により被覆してもよい。  Further, each of the plurality of reference signal terminals 6 is arranged at the tip of each finger insertion portion of the operation-dedicated glove, and the touch panel device 100 can detect the touch position by each finger of the user who operates the touch panel 1. May be configured. When adopting such a configuration, for example, the touch panel device 100 can be used as an operation means of game software for one person that requests a plurality of touch signals (screen touches) at the same time. In addition, the touch panel 1 is installed on a display screen on which a piano keyboard is displayed, and for example, a piano practice device operating means for learning the correct finger usage during piano performance such as which finger is correct to play which keyboard. It can also be used as Here, when such a configuration is employed, an insulating layer is interposed between each finger and each reference signal terminal 6 from the viewpoint of preventing capacitive coupling between the reference signal terminals arranged on each finger. The shield layer is provided. Each reference signal terminal 6 may be covered with a covering material in order not to damage the touch panel 1.
　また、上記実施形態においては、単一のタッチパネル１を備えるように構成しているが、このような構成に特に限定されず、複数のタッチパネル１を備えるようにタッチパネル装置１００を構成してもよい。例えば、大型の表示装置に本発明のタッチパネル装置１００を設置する場合、表示装置の表示画面を半分ずつに分割して２台のタッチパネル１を当該画面に設置し、それぞれのタッチパネル１でタッチ位置を検出できるように構成してもよい。 Moreover, in the said embodiment, although comprised so that the single touch panel 1 may be provided, it is not specifically limited to such a structure, You may comprise the touch panel apparatus 100 so that several touch panels 1 may be provided. . For example, when the touch panel device 100 of the present invention is installed in a large display device, the display screen of the display device is divided in half and two touch panels 1 are installed on the screen. You may comprise so that it can detect.
　また、上記実施形態においては、基準信号端子６の形態として、例えば、ボタン形状の他、椅子や、足をのせるマット等の形態を採用することができる旨説明したが、これら形態の異なる基準信号端子６を交換可能に構成してもよい。つまり、例えば、ボタン形状の基準信号端子６から椅子形態の基準信号端子６に変更できるように、或いは、椅子形態の基準信号端子６からボタン形状の基準信号端子６に変更できるように構成してもよい。このように基準信号端子６の形態を変更できるように構成することにより、本タッチパネル装置１００を購入するユーザーの目的や好みのデザインに応じて装置構成を変更することが可能となる。また、本タッチパネル装置１００を購入し、当初、椅子形態の基準信号端子６を使用していたが、タッチパネル装置１００の設置位置を変更して狭いスペースに設置する必要が生じたような場合であっても、基準信号端子６を他の形態のもの（例えば、ボタン形状のもの）に変更することにより容易に対応することが可能となり、ユーザーの利便性を向上させることができる。 Moreover, in the said embodiment, although it demonstrated that forms, such as a mat | matte on which a chair and a foot | leg were put other than button shape, could be employ | adopted as a form of the reference signal terminal 6, for example, these different references | standards You may comprise the signal terminal 6 so that replacement | exchange is possible. That is, for example, the button-shaped reference signal terminal 6 can be changed to the chair-shaped reference signal terminal 6, or the chair-shaped reference signal terminal 6 can be changed to the button-shaped reference signal terminal 6. Also good. By configuring the reference signal terminal 6 in such a manner as described above, the device configuration can be changed according to the purpose of the user who purchases the touch panel device 100 and the desired design. In addition, when the touch panel device 100 is purchased and the chair-type reference signal terminal 6 is initially used, it is necessary to change the installation position of the touch panel device 100 and install it in a narrow space. However, it is possible to easily cope with the problem by changing the reference signal terminal 6 to another type (for example, a button shape), and the convenience of the user can be improved.
　ここで、上記のように、形態の異なる基準信号端子６を交換可能に構成する場合、基準信号端子６の形態に応じて、基準抵抗器５の感度が変化することとなるため、基準抵抗器５が検出する電気信号値を基準信号端子６の形態に応じて増幅可能な増幅手段を備えるように構成したり、または、基準信号発生手段７が基準信号端子６に印加する入力信号（交流電流）の振幅を変更できるように構成することが好ましい。或いは、タッチ判定の基準となる閾値を変更可能となるように構成することが好ましい。 Here, when the reference signal terminal 6 having a different form is configured to be exchangeable as described above, the sensitivity of the reference resistor 5 changes depending on the form of the reference signal terminal 6. 5 includes an amplifying means capable of amplifying the electric signal value detected by the reference signal terminal 6 according to the form of the reference signal terminal 6, or an input signal (alternating current) applied to the reference signal terminal 6 by the reference signal generating means 7 It is preferable that the configuration can be changed. Or it is preferable to comprise so that the threshold value used as the reference | standard of touch determination can be changed.
　また、基準抵抗器５が検出する電気信号値に関して、各形態の基準信号端子６に応じた増幅率に関するテーブルデータを検出手段が備えるように構成すると共に、検出手段８が、基準信号発生手段７に接続されている基準信号端子６がどの種類のものであるかを判定できるように構成し、その判定結果に基づいて、検出手段８が、テーブルデータを選択し、基準抵抗器５が検出する電気信号値を増幅補正することで自動的に基準抵抗器５の感度が最適な状態となるように構成してもよい。なお、基準信号発生手段７に接続されている基準信号端子６がどの種類のものであるかを判定する方法としては、例えば、基準信号端子６を基準信号発生手段７に接続する際に、当該基準信号端子６に接続される直流電源と、抵抗器を介して基準信号端子６にグランド（ＧＮＤ）接続する配線とを備えるように構成し、基準信号端子６が基準信号発生手段７に接続されたときに直流電圧が印加されるようにし、その電流を読み取ることにより、基準信号端子６がどの種類かを判定する方法を挙げることができる。また、各形態の基準信号端子６に応じた増幅率に関するテーブルデータを利用する代わりに、各形態の基準信号端子６に応じたタッチ判定の基準となる閾値に関するテーブルデータを利用してもよい。 Further, with respect to the electrical signal value detected by the reference resistor 5, the detection means includes table data relating to the amplification factor corresponding to the reference signal terminal 6 of each form, and the detection means 8 includes the reference signal generation means 7 It is configured so that it can be determined what kind of reference signal terminal 6 is connected to, and based on the determination result, the detection means 8 selects the table data and the reference resistor 5 detects it. You may comprise so that the sensitivity of the reference resistor 5 may be in the optimal state automatically by carrying out amplification correction of the electric signal value. As a method for determining which type of reference signal terminal 6 connected to the reference signal generating means 7, for example, when connecting the reference signal terminal 6 to the reference signal generating means 7, A DC power source connected to the reference signal terminal 6 and a wiring connected to the reference signal terminal 6 via a resistor are connected to the ground (GND). The reference signal terminal 6 is connected to the reference signal generating means 7. A method of determining the type of the reference signal terminal 6 by applying a direct current voltage and reading the current can be given. Further, instead of using table data relating to the amplification factor corresponding to the reference signal terminal 6 of each form, table data relating to a threshold value serving as a reference for touch determination corresponding to the reference signal terminal 6 of each form may be used.
　また、上記実施形態におけるタッチパネル装置１００（図１）は、単一の基準信号端子６が基準信号発生手段７と電気的に接続する構成であるが、それぞれ形態の異なる基準信号端子６（ボタン形状、椅子形状、マット形状の基準信号端子６）を、基準信号発生手段７から複数分岐するように構成し、いずれかの基準信号端子６に接触しつつタッチパネル１にタッチした場合に、タッチ位置を認識できるように構成してもよい。このような構成を採用する場合、椅子形態の基準信号端子６に座った状態でタッチ操作を行ったり、或いは、指先でボタン形状の基準信号端子６に触れつつ立った状態でタッチ操作を行ったりすることが可能となり、操作者の好みに応じた姿勢での操作を行うことが可能となる。また、例えば、タッチパネル１が設置されるのがゲーム機のモニターであり、タッチ操作を進めていくことでゲーム内容が進行していくような場合、操作者（ゲームを楽しむ人）に対して、あるタイミングでは、椅子に座ったままでのタッチ操作を要求し、他のタイミングでは、マットに立った状態でのタッチ操作を要求するといった、操作者の様々な動きを伴う内容の新しいゲームにも対応することが可能となり、タッチパネル装置１００の利用範囲を拡大することが可能となる。なお、このような構成は、図１１に示すように、基準信号端子６を複数備えると共に、複数の基準信号端子６および基準信号発生手段７の間に配置され、両者を電気的に接続する端子切替手段９を備えるようにし、複数人がタッチパネル装置１００を操作できるように構成した場合についても適用できる。具体的には、端子切替手段９と各基準信号端子６との接続配線間において分岐配線を設けるように構成し、各分岐配線に形態がそれぞれ異なる基準信号端子６を接続すればよい。 Further, the touch panel device 100 (FIG. 1) in the above embodiment is configured such that the single reference signal terminal 6 is electrically connected to the reference signal generating means 7, but the reference signal terminal 6 (button shape) having a different form is used. The reference signal terminal 6) having a chair shape or a mat shape is configured to be branched from the reference signal generating means 7. When the touch panel 1 is touched while touching any of the reference signal terminals 6, the touch position is determined. You may comprise so that it can recognize. When such a configuration is adopted, the touch operation is performed while sitting on the chair-shaped reference signal terminal 6, or the touch operation is performed while standing while touching the button-shaped reference signal terminal 6 with a fingertip. This makes it possible to perform an operation in a posture according to the operator's preference. In addition, for example, when the touch panel 1 is installed on a monitor of a game machine and the game content progresses by proceeding with the touch operation, for the operator (person who enjoys the game) Supports a new game with various movements of the operator, such as requiring a touch operation while sitting on a chair at one timing, and requesting a touch operation while standing on the mat at another timing. It becomes possible to expand the range of use of the touch panel device 100. In addition, as shown in FIG. 11, such a configuration includes a plurality of reference signal terminals 6 and is disposed between the plurality of reference signal terminals 6 and the reference signal generating means 7 and electrically connects the two. The present invention can also be applied to a case where the switching unit 9 is provided so that a plurality of persons can operate the touch panel device 100. Specifically, a branch wiring may be provided between the connection wirings of the terminal switching means 9 and each reference signal terminal 6, and the reference signal terminals 6 having different forms may be connected to each branch wiring.
　また、上記実施形態において、検出手段８が、基準信号発生手段７から基準信号端子６に印加される入力信号（交流電流）のＯＮ／ＯＦＦ制御を行うように構成してもよい。具体的には、基準信号端子６において、所定時間の間、非接触状態が継続している場合に、その基準信号端子６に対して、入力信号（交流電流）が印加されないように制御する。或いは、別途設けられる入力ボタンを操作者が押圧した場合に、その押圧信号に基づいて、検出手段８が、基準信号発生手段７からの入力信号（交流電流）を基準信号端子６に印加するように構成してもよい。また、タッチパネル１がゲーム機のモニターに設置されており、基準信号端子６に隣接してコイン投入口が設けられているような場合、コイン投入口にコインが投入された信号を検出手段８が検知し、このコイン投入信号に基づいて、基準信号発生手段７からの入力信号（交流電流）を基準信号端子６に印加するように構成してもよい。 In the above embodiment, the detection unit 8 may be configured to perform ON / OFF control of the input signal (alternating current) applied from the reference signal generation unit 7 to the reference signal terminal 6. Specifically, when the reference signal terminal 6 is in a non-contact state for a predetermined time, control is performed so that an input signal (alternating current) is not applied to the reference signal terminal 6. Alternatively, when the operator presses an input button provided separately, the detection means 8 applies the input signal (alternating current) from the reference signal generating means 7 to the reference signal terminal 6 based on the pressing signal. You may comprise. When the touch panel 1 is installed on the monitor of the game machine and a coin insertion slot is provided adjacent to the reference signal terminal 6, the detection means 8 detects a signal that a coin has been inserted into the coin insertion slot. An input signal (alternating current) from the reference signal generating means 7 may be applied to the reference signal terminal 6 based on this coin insertion signal.
　また、図１１に示すように、基準信号端子６を複数備えると共に、複数の基準信号端子６および基準信号発生手段７の間に配置され、両者を電気的に接続する端子切替手段９を備えるようにし、複数人がタッチパネル装置１００を操作できるように構成した場合においては、検出手段８が、任意の基準信号端子６に対してのみ入力信号を印加するように制御してもよい。つまり、検出手段８が、端子切替手段９を制御し、基準信号発生手段７から基準信号端子６に印加される入力信号（交流電流）のＯＮ／ＯＦＦ制御を行うことができるように構成してもよい。具体的な制御方法としては、例えば、ある基準信号端子６において、所定時間の間、非接触状態が継続している場合に、その基準信号端子６に対して、入力信号（交流電流）が印加されないように制御する。或いは、別途設けられる入力ボタンを操作者が押圧した場合に、その押圧信号に基づいて、検出手段８が、端子切替手段９を制御し、基準信号発生手段７からの入力信号（交流電流）が基準信号端子６に印加されるように構成してもよい。また、タッチパネル１がゲーム機のモニターに設置されており、各基準信号端子６に隣接してコイン投入口が設けられているような場合、コイン投入口にコインが投入された信号を検出手段８が検知し、このコイン投入信号に基づいて、コインが投入されたコイン投入口に隣接する基準信号端子６に対してのみ、基準信号発生手段７からの入力信号（交流電流）が印加されるように構成してもよい。 In addition, as shown in FIG. 11, a plurality of reference signal terminals 6 are provided, and a terminal switching means 9 is provided between the plurality of reference signal terminals 6 and the reference signal generating means 7 to electrically connect them. In a case where a plurality of persons can operate the touch panel device 100, the detection means 8 may be controlled to apply an input signal only to an arbitrary reference signal terminal 6. That is, the detection means 8 is configured to control the terminal switching means 9 so as to perform ON / OFF control of the input signal (alternating current) applied from the reference signal generation means 7 to the reference signal terminal 6. Also good. As a specific control method, for example, when a non-contact state continues for a predetermined time at a certain reference signal terminal 6, an input signal (alternating current) is applied to the reference signal terminal 6. Control so that it is not. Alternatively, when the operator presses an input button provided separately, the detection means 8 controls the terminal switching means 9 based on the pressing signal, and the input signal (alternating current) from the reference signal generating means 7 is received. You may comprise so that it may apply to the reference signal terminal 6. FIG. Further, when the touch panel 1 is installed on the monitor of the game machine and a coin insertion slot is provided adjacent to each reference signal terminal 6, a signal indicating that a coin has been inserted into the coin insertion slot is detected by means 8. Based on this coin insertion signal, the input signal (alternating current) from the reference signal generating means 7 is applied only to the reference signal terminal 6 adjacent to the coin insertion slot into which the coin has been inserted. You may comprise.
　また、タッチパネル装置１００が、生体認証手段を備えるように構成し、生体認証結果に基づいて、検出手段８が、基準信号発生手段７から基準信号端子６に印加される入力信号（交流電流）のＯＮ／ＯＦＦ制御を行うように構成してもよい。生体認証手段としては、指紋認証手段や静脈認証手段等を例示することができる。具体的な構成について以下説明すると、例えば、生体認証手段として指紋認証手段を利用する場合、基準信号端子６における露出部６１を透明な導電性ガラスにより構成すると共に、この導電性ガラスの下方に指紋画像取得用の認証カメラを設ける。また、検出手段８が、予め登録された指紋データを格納する記憶部と、指紋照合を行う照合処理部とを備えるように構成する。照合処理部は、認証カメラにて取得された指紋画像と、記憶部に格納される登録指紋データとを照合し、基準信号端子６における露出部６１を指で触れている操作者の指紋データが、予め登録されている指紋データのいずれかに一致するか否かを判定する機能を有する。指紋認証の結果、認証カメラが取得した指紋画像が、予め登録されている指紋データのいずれかに一致した場合、検出手段８は、基準信号発生手段７からの入力信号を基準信号端子６に印加するようにし、操作者がタッチパネル１のタッチパネル操作を行えるようにする。一方、指紋認証の結果、認証カメラが取得した指紋画像が、予め登録された指紋データのいずれにも一致しない場合、検出手段８は、基準信号発生手段７からの入力信号を基準信号端子６に印加せず、操作者がタッチパネル１のタッチ操作を行えないようにする。 Further, the touch panel device 100 is configured to include biometric authentication means, and based on the biometric authentication result, the detection means 8 receives an input signal (alternating current) applied from the reference signal generating means 7 to the reference signal terminal 6. You may comprise so that ON / OFF control may be performed. Examples of biometric authentication means include fingerprint authentication means and vein authentication means. A specific configuration will be described below. For example, when a fingerprint authentication unit is used as a biometric authentication unit, the exposed portion 61 of the reference signal terminal 6 is formed of a transparent conductive glass, and a fingerprint is formed below the conductive glass. An authentication camera for image acquisition is provided. Further, the detection means 8 is configured to include a storage unit that stores pre-registered fingerprint data and a verification processing unit that performs fingerprint verification. The collation processing unit collates the fingerprint image acquired by the authentication camera and the registered fingerprint data stored in the storage unit, and the fingerprint data of the operator who touches the exposed portion 61 of the reference signal terminal 6 with a finger is obtained. , It has a function of determining whether or not it matches any of the pre-registered fingerprint data. As a result of the fingerprint authentication, when the fingerprint image acquired by the authentication camera matches any of the registered fingerprint data, the detection unit 8 applies the input signal from the reference signal generation unit 7 to the reference signal terminal 6. The operator can perform the touch panel operation of the touch panel 1. On the other hand, if the fingerprint image acquired by the authentication camera does not match any of the pre-registered fingerprint data as a result of the fingerprint authentication, the detection means 8 sends the input signal from the reference signal generation means 7 to the reference signal terminal 6. It is not applied so that the operator cannot perform touch operations on the touch panel 1.
　このように生体認証機能を備えるようにタッチパネル装置１００を構成する場合、タッチパネル装置１００を操作できる者を、予め指紋データを登録した者に限定することができ、例えば、機密性の高いデータを格納しているコンピューターの操作手段としてタッチパネル装置１００を利用しているような場合のセキュリティー性を向上させることが可能となる。また、生体認証機能を備える場合、タッチパネル装置１００を操作する者が入れ替わった場合であっても、各操作者を特定してその者に対してタッチパネル操作を許可することが可能となるため、操作者のタッチ操作の内容を操作ログとして保存することが可能となる。例えば、上述のように、機密性の高いデータを格納しているコンピューターの操作手段としてタッチパネル装置１００を利用しているような場合、ある操作者が、いつ、どのデータを閲覧したのかといった情報を操作ログとして残すことができるため、より一層セキュリティー性の向上を図ることが可能となる。 When the touch panel device 100 is configured to have a biometric authentication function in this manner, the person who can operate the touch panel device 100 can be limited to those who have previously registered fingerprint data, for example, storing highly confidential data. It is possible to improve the security when the touch panel device 100 is used as the operating means of the computer that is running. Further, when the biometric authentication function is provided, even if the person who operates the touch panel device 100 is switched, it is possible to identify each operator and permit the touch panel operation to the person. The contents of the touch operation of the person can be saved as an operation log. For example, as described above, when the touch panel device 100 is used as an operation unit of a computer storing highly confidential data, information such as when and what data a certain operator has viewed is displayed. Since it can be left as an operation log, it is possible to further improve the security.
　ここで、生体認証機能によりタッチ操作を許可した状態からタッチ操作の許可を解除するタイミング（操作不可状態とするタイミング）についてであるが、例えば、操作者が、基準信号端子６から指を離すタイミング毎に操作許可状態を解除するように構成したり、操作者が、基準信号端子６から指を離した後、所定時間内に再度基準信号端子６に指を接触させない場合に、操作許可状態を解除するように構成することが好ましい。或いは、別途認証解除用の認証解除ボタンを設け、この認証解除ボタンを押圧することにより操作許可状態を解除するように構成してもよい。なお、認証解除ボタンは、操作画面の近傍に設ける押しボタン式のボタンであってもよく、或いは、操作画面に表示するタッチスイッチ式のボタンであってもよい。 Here, the timing for releasing the permission of the touch operation from the state where the touch operation is permitted by the biometric authentication function (the timing when the operation is disabled), for example, the timing when the operator releases the finger from the reference signal terminal 6. The operation permission state is set when the operation permission state is released every time or when the operator does not touch the reference signal terminal 6 again within a predetermined time after releasing the finger from the reference signal terminal 6. It is preferable to be configured to cancel. Alternatively, an authentication cancellation button for canceling authentication may be provided separately, and the operation permission state may be canceled by pressing the authentication cancellation button. The authentication cancellation button may be a push button type button provided in the vicinity of the operation screen, or may be a touch switch type button displayed on the operation screen.
　また、図１１に示すように、基準信号端子６を複数備えると共に、複数の基準信号端子６および基準信号発生手段７の間に配置され、両者を電気的に接続する端子切替手段９を備えるようにし、複数人がタッチパネル装置１００を操作できるように構成した場合においても、生体認証手段を付与することができる。具体的には、生体認証結果に基づいて、例えば、検出手段８が、端子切替手段９を制御し、基準信号発生手段７から各基準信号端子６に印加される入力信号（交流電流）のＯＮ／ＯＦＦ制御を行うように構成する。このような構成の場合、例えば、ある第１の基準信号端子６に接触しつつタッチ操作を行っていた操作者が、異なる第２の基準信号端子６に接触してタッチパネル操作を行う場合であっても、タッチパネル装置１００が操作者を特定することができるため、操作ログを引き継ぐことにより、第１の基準信号端子６に接触しつつ操作した過去のタッチ内容を引き継いだ状態で、第２の基準信号端子６に接触しつつ行うタッチ操作が可能となる。 In addition, as shown in FIG. 11, a plurality of reference signal terminals 6 are provided, and a terminal switching means 9 is provided between the plurality of reference signal terminals 6 and the reference signal generating means 7 to electrically connect them. Even in the case where a plurality of persons can operate the touch panel device 100, biometric authentication means can be provided. Specifically, based on the biometric authentication result, for example, the detection unit 8 controls the terminal switching unit 9 to turn on the input signal (alternating current) applied from the reference signal generation unit 7 to each reference signal terminal 6. / OFF control is performed. In the case of such a configuration, for example, an operator who is performing a touch operation while touching a certain first reference signal terminal 6 performs a touch panel operation while touching a different second reference signal terminal 6. However, since the touch panel device 100 can identify the operator, by taking over the operation log, it is possible to carry out the second touch in a state in which the past touch content operated while touching the first reference signal terminal 6 is taken over. A touch operation performed while touching the reference signal terminal 6 becomes possible.
　また、上記のように、検出手段８が、基準信号発生手段７から基準信号端子６に印加される入力信号（交流電流）のＯＮ／ＯＦＦ制御を行うように構成する場合、基準信号発生手段７からの入力信号（交流電流）が印加されている基準信号端子６を明示する表示手段を設けるようにしてもよい。具体的には、例えば、基準信号端子６が、図１１や図１４等に示すように露出部６１を有するボタン形状のものである場合、当該露出部６１の近傍や露出部６１の縁に沿って配置されるランプ等の発光体を設け、この発光体を発光させることにより、基準信号発生手段７からの入力信号（交流電流）が印加されている基準信号端子６を明示できるように構成してもよい。或いは、基準信号端子６が、椅子の形態である場合には、例えば、肘掛部に発光体を設置し、当該発光体が光るように構成してもよい。 Further, as described above, when the detection means 8 is configured to perform ON / OFF control of the input signal (alternating current) applied from the reference signal generation means 7 to the reference signal terminal 6, the reference signal generation means 7 Display means for clearly indicating the reference signal terminal 6 to which the input signal (alternating current) is applied may be provided. Specifically, for example, when the reference signal terminal 6 has a button shape having the exposed portion 61 as shown in FIGS. 11 and 14, the vicinity of the exposed portion 61 or along the edge of the exposed portion 61. The reference signal terminal 6 to which the input signal (alternating current) from the reference signal generating means 7 is applied can be clearly indicated by providing a light emitter such as a lamp arranged in the same manner and causing the light emitter to emit light. May be. Alternatively, when the reference signal terminal 6 is in the form of a chair, for example, a light emitter may be installed on the armrest so that the light emitter emits light.
１００　タッチパネル装置
１　タッチパネル
１０　第１透明面状体
２０　第２透明面状体
１１，２１　透明基板
１２，２２　透明導電膜
１２ａ，２２ａ　電極部
１５　配線導体
５　基準抵抗器
６　基準信号端子
６１　露出部
６２　接触信号検出手段
７　基準信号発生手段
８　検出手段
９　端子切替手段
  DESCRIPTION OF SYMBOLS 100 Touch panel apparatus 1 Touch panel 10 1st transparent planar body 20 2nd transparent planar body 11,21 Transparent substrate 12,22 Transparent conductive film 12a, 22a Electrode part 15 Wiring conductor 5 Reference resistor 6 Reference signal terminal 61 Exposed part 62 Contact signal detection means 7 Reference signal generation means 8 Detection means 9 Terminal switching means

Claims (14)

  1. 　タッチ位置を検出できるタッチパネル装置であって、
    　間隔をあけて複数配置される電極部を有するタッチパネルと、
    　前記複数の電極部の各一端部に電気的に接続する基準抵抗器と、
    　人体が接触可能な基準信号端子と、
    　前記基準信号端子に接触しつつ前記タッチパネルに人体がタッチした場合に、前記基準信号端子及び人体を介して、交流電流を前記電極部に供給する基準信号発生手段と、
    　前記各基準抵抗器における各電気信号値の変化に基づいて前記タッチパネル上のタッチ位置を検出する検出手段と、を備えるタッチパネル装置。     A touch panel device capable of detecting a touch position,
    A touch panel having a plurality of electrode portions arranged at intervals, and
    A reference resistor electrically connected to each one end of the plurality of electrode portions;
    A reference signal terminal that can be contacted by a human body;
    Reference signal generating means for supplying an alternating current to the electrode unit through the reference signal terminal and the human body when a human body touches the touch panel while being in contact with the reference signal terminal;
    A touch panel device comprising: detecting means for detecting a touch position on the touch panel based on a change in each electric signal value in each reference resistor.
  2. 　前記基準信号端子を複数備えており、
    　前記複数の基準信号端子および前記基準信号発生手段の間に配置され、両者を電気的に接続する端子切替手段を備え、
    　前記端子切替手段は、基準信号発生手段と前記複数の基準信号端子の個々との電気的な接続を順次切り替え可能に構成されている請求項１に記載のタッチパネル装置。     A plurality of the reference signal terminals;
    A terminal switching means disposed between the plurality of reference signal terminals and the reference signal generating means, and electrically connecting both;
    2. The touch panel device according to claim 1, wherein the terminal switching unit is configured to be able to sequentially switch an electrical connection between a reference signal generating unit and each of the plurality of reference signal terminals.
  3. 　前記検出手段は、前記端子切替手段により、前記基準信号発生手段と電気的に順次接続された基準信号端子毎に、前記各基準抵抗器における各電気信号値の変化に基づいて前記タッチパネル上のタッチ位置を検出可能に構成されている請求項２に記載のタッチパネル装置。 The detection means touches the touch panel on the touch panel based on a change in each electric signal value in each reference resistor for each reference signal terminal electrically sequentially connected to the reference signal generation means by the terminal switching means. The touch panel device according to claim 2, wherein the position is detectable.
  4. 　前記端子切替手段は、前記基準信号発生手段と接続する基準信号端子以外の基準信号端子に対して所定の基準電位に接続可能に構成されている請求項２又は請求項３に記載のタッチパネル装置。 4. The touch panel device according to claim 2, wherein the terminal switching unit is configured to be connectable to a predetermined reference potential with respect to a reference signal terminal other than a reference signal terminal connected to the reference signal generating unit.
  5. 　前記基準信号端子に人体が接触した際の接触信号を検出する接触信号検出手段を備える請求項１から請求項４のいずれかに記載のタッチパネル装置。 The touch panel device according to any one of claims 1 to 4, further comprising contact signal detection means for detecting a contact signal when a human body contacts the reference signal terminal.
  6. 　前記基準信号端子は、絶縁領域部と、前記絶縁領域部を間に挟んで配置される一対の導電性領域部とを備える露出部を備えており、
    　前記接触信号検出手段は、前記絶縁領域部を跨いだ前記一対の導電性領域部の人体接触により発生する導通信号を前記接触信号として検出する請求項５に記載のタッチパネル装置。     The reference signal terminal includes an exposed portion including an insulating region portion and a pair of conductive region portions arranged with the insulating region portion interposed therebetween,
    The touch panel device according to claim 5, wherein the contact signal detection unit detects a conduction signal generated by a human body contact between the pair of conductive region portions straddling the insulating region portion as the contact signal.
  7. 　タッチ位置を検出可能な通常モードと、前記通常モードよりも消費電力が少ないスリープモードとの切り替えが可能な制御手段を備えており、
    　前記制御手段は、前記接触信号検出手段が検出する前記接触信号に基づいて、前記スリープモードから前記通常モードに切り替える請求項５又は６に記載のタッチパネル装置。     A control unit capable of switching between a normal mode in which a touch position can be detected and a sleep mode with less power consumption than the normal mode;
    The touch panel device according to claim 5, wherein the control unit switches from the sleep mode to the normal mode based on the contact signal detected by the contact signal detection unit.
  8. 　前記接触信号検出手段は、前記各基準信号端子に人体が接触した際の接触信号をそれぞれ検出可能に構成されており、
    　前記検出手段は、前記接触信号検出手段が検出する各接触信号に基づいて、接触信号を発した基準信号端子に対してのみ、前記各基準抵抗器における各電気信号値の変化に基づいて前記タッチパネル上のタッチ位置を検出可能に構成されている請求項５から請求項７のいずれかに記載のタッチパネル装置。     The contact signal detection means is configured to be able to detect a contact signal when a human body contacts each reference signal terminal,
    The detection means is based on each contact signal detected by the contact signal detection means, and only on a reference signal terminal that has issued a contact signal, based on a change in each electric signal value in each reference resistor. The touch panel device according to claim 5, wherein the touch panel device is configured to be able to detect an upper touch position.
  9. 　前記接触信号検出手段は、前記各基準信号端子に人体が接触した際の接触信号をそれぞれ検出可能に構成されており、
    　前記端子切替手段は、前記接触信号検出手段が検出する各接触信号に基づいて、接触信号を発した基準信号端子の個々と前記基準信号発生手段との電気的な接続を順次切り替え可能に構成されている請求項５から請求項７のいずれかに記載のタッチパネル装置。     The contact signal detection means is configured to be able to detect a contact signal when a human body contacts each reference signal terminal,
    The terminal switching means is configured to be able to sequentially switch the electrical connection between each of the reference signal terminals that issued the contact signal and the reference signal generating means based on each contact signal detected by the contact signal detecting means. The touch panel device according to any one of claims 5 to 7.
  10. 　前記電気信号値は、前記基準抵抗器の両端の電位差である請求項１から請求項９のいずれかに記載のタッチパネル装置。 The touch panel device according to claim 1, wherein the electric signal value is a potential difference between both ends of the reference resistor.
  11. 　前記電極部は、金属線を網目状にして形成されている請求項１から１０のいずれかに記載のタッチパネル装置。 The touch panel device according to any one of claims 1 to 10, wherein the electrode portion is formed by forming a metal wire in a mesh shape.
  12. 　前記検出手段は、前記基準信号発生手段から前記基準信号端子に印加される交流電流のＯＮ／ＯＦＦ制御を行うことを特徴とする請求項１から１１のいずれかに記載のタッチパネル装置。 12. The touch panel device according to claim 1, wherein the detection unit performs ON / OFF control of an alternating current applied from the reference signal generation unit to the reference signal terminal.
  13. 　生体認証手段を更に備えており、前記生体認証手段による認証結果に基づいて、前記検出手段は、前記基準信号発生手段から前記基準信号端子に印加される交流電流のＯＮ／ＯＦＦ制御を行うことを特徴とする請求項１から１２のいずれかに記載のタッチパネル装置。 Biometric authentication means is further provided, and based on an authentication result by the biometric authentication means, the detection means performs ON / OFF control of an alternating current applied to the reference signal terminal from the reference signal generation means. The touch panel device according to claim 1, wherein the touch panel device is characterized.
  14. 　交流電流が印加されている前記基準信号端子を明示する表示手段を更に備える請求項１から１３のいずれかに記載のタッチパネル装置。
          The touch panel device according to any one of claims 1 to 13, further comprising display means for clearly indicating the reference signal terminal to which an alternating current is applied.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014238563A (en) * 2013-06-06 2014-12-18 フォーカルテック システムズ リミテッドＦｏｃａｌＴｅｃｈ Ｓｙｓｔｅｍｓ， Ｌｔｄ． Organic light-emitting diode display device integrated with touch control function
JP2015138524A (en) * 2014-01-24 2015-07-30 住友金属鉱山株式会社 Laminated transparent conductive substrate, and method of manufacturing the same
WO2016043434A1 (en) * 2014-09-18 2016-03-24 장욱 Multi-touch device and operation method therefor
US9926010B2 (en) 2015-12-03 2018-03-27 Hyundai Motor Company Apparatus and method for manipulating in-vehicle devices using steering wheel
JP2019101958A (en) * 2017-12-07 2019-06-24 Smk株式会社 Touch panel switch and touch panel composite switch
JP2019106079A (en) * 2017-12-14 2019-06-27 ファナック株式会社 Touch panel device
WO2022080224A1 (en) * 2020-10-14 2022-04-21 アルプスアルパイン株式会社 Electrostatic capacitance detecting device
CN114442839A (en) * 2020-11-02 2022-05-06 富士通电子零件有限公司 Touch panel device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI476657B (en) * 2012-11-02 2015-03-11 Transtouch Technology Inc Touch panel and touch-display panel using the same
JP5805127B2 (en) * 2013-03-26 2015-11-04 富士フイルム株式会社 Touch panel and display device
KR101641690B1 (en) * 2013-09-25 2016-07-21 엘지디스플레이 주식회사 Display device with integrated touch screen
CN104808872B (en) * 2014-01-26 2018-04-17 宸鸿科技(厦门)有限公司 Contact panel and its method for detecting

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002341958A (en) * 2001-05-14 2002-11-29 Sony Corp Information processor
JP2003022158A (en) * 2001-05-24 2003-01-24 Mitsubishi Electric Research Laboratories Inc Multi-user touch system and method for operating thereof
JP2004535026A (en) * 2001-07-09 2004-11-18 スリーエム イノベイティブ プロパティズ カンパニー Touch screen with selective touch source
GB2428094A (en) * 2005-07-08 2007-01-17 Sharp Kk A controller for an input device, an input device, and a method of using an input device
JP2010277461A (en) * 2009-05-29 2010-12-09 Sony Corp Touch panel, display panel, touch panel substrate, display panel substrate and display device
JP2010282462A (en) * 2009-06-05 2010-12-16 Smk Corp Capacity type touch panel
WO2011036710A1 (en) * 2009-09-24 2011-03-31 株式会社 東芝 Touch-type input device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002341958A (en) * 2001-05-14 2002-11-29 Sony Corp Information processor
JP2003022158A (en) * 2001-05-24 2003-01-24 Mitsubishi Electric Research Laboratories Inc Multi-user touch system and method for operating thereof
JP2004535026A (en) * 2001-07-09 2004-11-18 スリーエム イノベイティブ プロパティズ カンパニー Touch screen with selective touch source
GB2428094A (en) * 2005-07-08 2007-01-17 Sharp Kk A controller for an input device, an input device, and a method of using an input device
JP2010277461A (en) * 2009-05-29 2010-12-09 Sony Corp Touch panel, display panel, touch panel substrate, display panel substrate and display device
JP2010282462A (en) * 2009-06-05 2010-12-16 Smk Corp Capacity type touch panel
WO2011036710A1 (en) * 2009-09-24 2011-03-31 株式会社 東芝 Touch-type input device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014238563A (en) * 2013-06-06 2014-12-18 フォーカルテック システムズ リミテッドＦｏｃａｌＴｅｃｈ Ｓｙｓｔｅｍｓ， Ｌｔｄ． Organic light-emitting diode display device integrated with touch control function
JP2015138524A (en) * 2014-01-24 2015-07-30 住友金属鉱山株式会社 Laminated transparent conductive substrate, and method of manufacturing the same
WO2016043434A1 (en) * 2014-09-18 2016-03-24 장욱 Multi-touch device and operation method therefor
US10114509B2 (en) 2014-09-18 2018-10-30 Wook Chang Multi-touch device having impedances positioned at electrode cross points and operation method therefor for detecting touch inputs
US9926010B2 (en) 2015-12-03 2018-03-27 Hyundai Motor Company Apparatus and method for manipulating in-vehicle devices using steering wheel
US10625779B2 (en) 2015-12-03 2020-04-21 Hyundai Motor Company Apparatus and method for manipulating in-vehicle devices using steering wheel
JP2019101958A (en) * 2017-12-07 2019-06-24 Smk株式会社 Touch panel switch and touch panel composite switch
JP2019106079A (en) * 2017-12-14 2019-06-27 ファナック株式会社 Touch panel device
WO2022080224A1 (en) * 2020-10-14 2022-04-21 アルプスアルパイン株式会社 Electrostatic capacitance detecting device
JPWO2022080224A1 (en) * 2020-10-14 2022-04-21
CN114442839A (en) * 2020-11-02 2022-05-06 富士通电子零件有限公司 Touch panel device

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