WO2015125529A1 - Touch panel having three-dimensional shape, method for driving touch panel, and method for calibrating touch panel - Google Patents

Touch panel having three-dimensional shape, method for driving touch panel, and method for calibrating touch panel Download PDF

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Publication number
WO2015125529A1
WO2015125529A1 PCT/JP2015/051222 JP2015051222W WO2015125529A1 WO 2015125529 A1 WO2015125529 A1 WO 2015125529A1 JP 2015051222 W JP2015051222 W JP 2015051222W WO 2015125529 A1 WO2015125529 A1 WO 2015125529A1
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WO
WIPO (PCT)
Prior art keywords
touch panel
dimensional shape
display
detection
unit
Prior art date
Application number
PCT/JP2015/051222
Other languages
French (fr)
Japanese (ja)
Inventor
久史 津端
Original Assignee
富士フイルム株式会社
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Publication of WO2015125529A1 publication Critical patent/WO2015125529A1/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
    • G06F3/044—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present invention relates to a touch panel having a three-dimensional shape used together with a display device such as a liquid crystal display device, a driving method and a calibration method of the touch panel, and in particular, a three-dimensional conductive film in which a plurality of opposing detection electrodes are arranged.
  • the present invention relates to a touch panel that is molded and configured with a display unit and other parts, a touch panel on which a mechanical switch can be arranged, a driving method of the touch panel, and a calibration method.
  • Patent Document 1 includes an operation position detection sensor that includes a thin film in which a plurality of electrodes are arranged, detects an operation position of the user on the thin film based on a change in capacitance of the electrode, and a user's pressing operation on the pressing surface. And a key input means for detecting a key input signal, and a portable information terminal in which the thin film of the operation position detection sensor is formed to overlap at least a part of the pressing surface of the key input means is described. Yes.
  • Patent Document 2 describes a touch panel device that includes a capacitance type or field effect type touch panel and is mounted on an instrument panel of a vehicle.
  • electronic components such as a touch switch, a variable resistor such as a volume, and a rotary switch are arranged.
  • Patent Document 3 describes a capacitance-type input device in which a mechanical switch by pressing can be installed in an opening provided in a part of a front plate.
  • Patent Documents 1 to 3 describe a device in which an instruction can be input using capacitance and a mechanical switch is provided.
  • the operation unit such as a switch used for instruction input or the like
  • the switch is designed again in order to arrange the changed switch.
  • the degree of freedom in design is low, and it is difficult to deal with a small variety of products.
  • the object of the present invention is to solve the above-mentioned problems based on the prior art, and in particular, it is made of a conductive film in which a plurality of opposing detection electrodes are arranged and has a three-dimensional shape composed of a display part and other parts A touch panel, a touch panel driving method, and a touch panel calibration method are provided.
  • the present invention is a touch panel having a three-dimensional shape in which a plurality of opposing detection electrodes are arranged, and includes a display unit on which a display device is arranged, and an operation unit.
  • a touch panel having a three-dimensional shape characterized in that detection electrodes are provided on at least a part of the part and the operation part. It is preferable that at least a part of the detection electrode is composed of a fine metal wire having a width of 1 to 30 ⁇ m.
  • the display unit and the operation unit share at least one detection electrode among the plurality of detection electrodes.
  • the detection electrode arranged in the portion other than the display unit is thicker than the detection electrode arranged in the display unit. Further, it is preferable that the interval between the detection electrodes arranged in the portion other than the display portion is wider than the interval between the detection electrodes arranged in the display portion. Furthermore, the structure which has a mechanical switch may be sufficient. For example, a design is applied to at least a part of the portion that is not the display portion.
  • the touch panel includes a display unit on which a display device is arranged and an operation unit.
  • a touch panel having a three-dimensional shape is characterized in that the display unit and the operation unit are scanned for touch detection, and the non-display unit and the operation unit are not scanned for touch detection. It is to provide.
  • a calibration method for a touch panel having a three-dimensional shape in which a plurality of opposing detection electrodes are arranged The touch panel includes a display unit on which a display device is arranged and an operation unit.
  • a calibration method for a touch panel having a three-dimensional shape is provided, wherein the touch panel is calibrated by a touch test in a three-dimensional shape state.
  • the present invention it is possible to realize a three-dimensional touch panel having a display unit and an operation unit by integral molding while facilitating the correspondence to a small variety of products.
  • the touch panel driving method it is possible to efficiently perform touch detection.
  • the touch panel calibration method enables accurate position detection in a three-dimensional state.
  • (A) is a typical perspective view which shows the operation panel provided with the touch panel which has the three-dimensional shape of the 1st Embodiment of this invention
  • (b) is an example of the switch of the touch panel which has a three-dimensional shape. It is a typical perspective view to show
  • (c) is a typical perspective view which shows the other example of the switch of the touchscreen which has a three-dimensional shape.
  • (A) is a schematic top view which shows the 1st example of the electroconductive film of the touchscreen which has the three-dimensional shape of embodiment of this invention
  • (b) is the electroconductivity of the touchscreen of Fig.2 (a). It is typical sectional drawing which shows a film
  • (c) is typical sectional drawing which shows the other example of the electroconductive film of a touchscreen.
  • (A) is a schematic plan view which shows the 2nd example of the electroconductive film of the touchscreen which has the three-dimensional shape of embodiment of this invention
  • (b) is the three-dimensional shape of embodiment of this invention.
  • It is a schematic plan view which shows the 3rd example of the electroconductive film of the touch panel which has.
  • (A) is a typical perspective view which shows the operation panel provided with the touch panel which has the three-dimensional shape of the 2nd Embodiment of this invention
  • (b) is a structure of the operation part of the touch panel which has a three-dimensional shape. It is a schematic diagram which shows.
  • FIG. 1A is a schematic perspective view showing an operation panel including a touch panel having a three-dimensional shape according to the first embodiment of the present invention
  • FIG. 1B is a diagram of a switch of a touch panel having a three-dimensional shape. It is a typical perspective view which shows an example
  • (c) is a typical perspective view which shows the other example of the switch of the touchscreen which has a three-dimensional shape.
  • FIG. 1A is a schematic perspective view showing an operation panel including a touch panel having a three-dimensional shape according to the first embodiment of the present invention
  • FIG. 1B is a diagram of a switch of a touch panel having a three-dimensional shape. It is a typical perspective view which shows an example
  • (c) is a typical perspective view which shows the other example of the switch of the touchscreen which has a three-dimensional shape.
  • FIG. 2A is a schematic plan view showing a first example of a conductive film of a touch panel having a three-dimensional shape according to an embodiment of the present invention
  • FIG. 2B is a schematic view of the touch panel of FIG. It is typical sectional drawing which shows an electroconductive film
  • (c) is typical sectional drawing which shows the other example of the electroconductive film of a touchscreen.
  • an operation panel 10 in which a touch panel 12 having a three-dimensional shape and a display device 20 are combined will be described as an example.
  • the operation panel 10 is used to operate various devices, and can be used as an input interface to various devices.
  • the usage pattern of the touch panel having a three-dimensional shape according to the present invention is not limited to the operation panel 10 according to the present embodiment, but may be used as an operation switch using a display with a touch panel or a touch panel function. it can.
  • the operation panel 10 shown in FIG. 1A includes a touch panel 12, a display device 20, a detection unit 22, a display control unit 24, a sound generation unit 26, and a control unit 28.
  • the touch panel 12 is composed of a conductive film 30 (see FIG. 2A) in which a plurality of detection electrodes facing almost the entire surface are arranged.
  • the touch panel 12 is, for example, a capacitance type.
  • the touch panel 12 includes a surface portion 12a obtained by bending a long plate material in the middle of the longitudinal direction, and side surface portions 12b obtained by bending both sides of the surface portion 12a.
  • the touch panel 12 is not limited to the one shown in FIG.
  • the three-dimensional shape of the present invention is not a flat plate but a three-dimensional shape to which a deformation such as bending at least a part is added.
  • the touch panel 12 is connected to the detection unit 22, and contact with the touch panel 12 is detected by the detection unit 22.
  • the position where the capacitance has changed on the touch panel 12 is detected by the detection unit 22.
  • the position detection result in the detection unit 22 is output to the control unit 28.
  • the control unit 28 controls the display control unit 24 and the sound generation unit 26 based on the detection result of the detection unit 22.
  • the configuration of the detection unit 22 is not particularly limited as long as the position where the capacitance has changed can be specified, and a known capacitance type detection unit can be appropriately used.
  • the touch panel 12 is not limited to a capacitance type, and other detection methods such as a resistance film type can be employed. In this case, the detection unit 22 is appropriately used according to the configuration and detection method of the touch panel 12.
  • the display unit 14 provided with the display device 20 on the surface unit 12a and the switch units 18a, 18b, and 18c functioning as the operation unit are provided at different positions of the conductive film.
  • Each switch unit 18a, 18b, 18c is assigned in advance with a specific operation caused by on / off.
  • the operation unit is for inputting an instruction for controlling the display device 20 and, if another device is connected, inputting an instruction for controlling the device.
  • the switch units 18a, 18b, and 18c are exemplified as the operation unit.
  • the present invention is not limited to this as long as the function of performing the instruction input can be exhibited.
  • Presence / absence of contact, the number of times of contact, etc. are set in advance in the control unit 28 as on / off determination criteria for each of the switch units 18a, 18b, 18c.
  • the control unit 28 determines whether each switch unit 18 a, 18 b, 18 c is on or off according to each determination criterion.
  • the control unit 28 causes the assigned operation according to the on / off state of the switch units 18a, 18b, and 18c.
  • the switch portions 18a, 18b, and 18c are generally determined to be on or off depending on the presence or absence of contact, but are not limited thereto, and are configured as, for example, a slide switch or a rotary switch. You can also
  • each switch part 18a, 18b, 18c for example, you may comprise by the protrusion part 19a which protruded as shown in FIG.1 (b), and it is good also as the sheet
  • the projecting portion 19a it is possible to achieve a specific click feeling preset by the material, hardness, etc. of the projecting portion 19a.
  • seat 19b it can be made not conspicuous and the stylish operation panel 10 can be implement
  • each switch part 18a, 18b, 18c can be produced anywhere on the touch panel 12, that is, anywhere on the surface part 12a and the side part 12b, as long as the position and the operation are associated by the control part 28. Therefore, the switch portions 18a, 18b, and 18c can be easily manufactured as operation portions at arbitrary positions on the touch panel 12.
  • the shape of the switch portions 18a, 18b, and 18c is not limited to a circle as in the illustrated example, and may be an arbitrary shape.
  • the conductive film 30 constituting the touch panel 12 is arranged such that the first detection electrode 32 and the second detection electrode 34 intersect each other in plan view as shown in FIG. Yes.
  • the first detection electrode 32 and the second detection electrode 34 are arranged on the surface portion 12a and the side surface portion 12b.
  • a region where the first detection electrode 32 and the second detection electrode 34 are arranged is referred to as a wiring region.
  • the display unit 14 and the switch units 18a, 18b, and 18c are arranged in the wiring area. For example, in the configuration of FIG.
  • the display unit 14 and the switch units 18a, 18b, and 18c are arranged in the extending direction of the second detection electrode 34, the display unit 14 and the switch units 18a and 18b are arranged. , 18c, at least one second detection electrode 34 is common. Further, since the switch portions 18a, 18b, and 18c are arranged along the extending direction of the first detection electrode 32, at least one first detection electrode 32 is shared.
  • the first detection electrode 32 is formed on the front surface 31 a of the base 31, and the second detection electrode 34 is formed on the back surface 31 b of the base 31.
  • a protective member 36 is provided on the first detection electrode 32 via an adhesive layer 35.
  • the 1st detection electrode 32 and the 2nd detection electrode 34 are not limited to what is formed in each surface of the base
  • the first detection electrode 32 and the second detection electrode 34 may be provided with a protective film 38.
  • the protective member 36 is provided on the protective film 38 via the adhesive layer 35.
  • a fluororesin is used for the protective film 38.
  • a resin film such as a PET film can be used as the protective film 38.
  • the base 31 supports the first detection electrode 32 and the second detection electrode 34.
  • the substrate 31 only needs to have a degree of transparency that can recognize an image displayed on the screen of the display device 20.
  • a plastic film, a plastic plate, a glass plate or the like can be used.
  • Plastic films and plastic plates are, for example, polyesters such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyethylene (PE), polypropylene (PP), polystyrene, ethylene vinyl acetate (EVA) / cycloolefin polymer (COP).
  • Cycloolefin polymer (COC) and other polyolefins vinyl resins, polycarbonate (PC), polyamide, polyimide, acrylic resin, triacetyl cellulose (TAC) and the like. From the viewpoints of light transmittance and processability, it is preferable to use polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the first detection electrode 32 and the second detection electrode 34 are composed of conductive conductors.
  • This conductor is not particularly limited, and is made of, for example, ITO, Au, Ag, or Cu.
  • the conductor constituting the first detection electrode 32 and the second detection electrode 34 may be composed of the ITO, Au, Ag, or Cu and further containing a binder.
  • a binder By including a binder, the conductor can be easily bent and the bending resistance is improved. For this reason, it is preferable to comprise the 1st detection electrode 32 and the 2nd detection electrode 34 with the conductor containing a binder.
  • a binder what is used for the wiring of an electroconductive film can be used suitably, For example, what is described in Unexamined-Japanese-Patent No.
  • 2013-12604 can be used.
  • the detection electrode it is more preferable to employ an electrode composed of a thin metal wire because resistance can be lowered and disconnection is difficult during three-dimensional molding. Moreover, since the influence on the resistance value of the detection electrode can be reduced even when a disconnection occurs, it is preferable to employ a mesh electrode in which metal fine wires intersect to form a mesh.
  • the mesh electrode for example, lattice-like mesh wirings disclosed in Japanese Patent Application Laid-Open Nos. 2011-129501 and 2013-149236 can be used.
  • a detection electrode used for a capacitive touch panel can be used as appropriate.
  • the width of the fine metal line when the mesh electrode is adopted the display unit 14 is required to have a thin line width as much as possible in order to ensure display quality such as cleanness and brightness, and is also thin from the viewpoint of visibility. Is preferred.
  • the width of the first detection electrode 32 and the width of the second detection electrode 34 are, for example, at least partly 1 to 30 ⁇ m, but preferably less than 7 ⁇ m. Preferably it is 5 micrometers or less.
  • the width of the fine metal wire is as described above for the display unit 14, but is preferably 1 to 100 ⁇ m in the operation unit other than the display unit 14 and other regions.
  • the formation method of the first detection electrode 32 and the second detection electrode 34 is not particularly limited. For example, it can be formed by exposing a light-sensitive material having an emulsion layer containing a light-sensitive silver halide salt to development processing. Further, a metal foil is formed on the surface of the base 31 and a resist is printed in a pattern on each metal foil, or the resist applied on the entire surface is exposed and developed to form a pattern, thereby opening the metal in the opening.
  • the first detection electrode 32 and the second detection electrode 34 can be formed by etching.
  • a paste containing fine particles of the material constituting the conductor is printed, and the paste is subjected to metal plating, and the above-described method.
  • a method using an ink jet method using an ink containing fine particles of a material constituting the conductor is printed, and the paste is subjected to metal plating, and the above-described method.
  • the display device 20 is provided in the display unit.
  • the display unit 14 is transparent to recognize an image displayed on the display device 20.
  • transparent means that the display unit 14 has a degree of transparency that allows an image displayed on the screen of the display device 20 to be recognized.
  • the transmittance of the display unit 14 is set as appropriate according to the usage pattern and usage environment of the operation panel 10.
  • the display device 20 is not particularly limited as long as an arbitrary image including a moving image or the like can be displayed on the screen.
  • the display device 20 includes a liquid crystal display device and an organic EL device.
  • the display device 20 is connected to the display control unit 24, and the screen display is controlled by the display control unit 24.
  • the display control unit 24 is appropriately determined according to the configuration of the display device 20. If the display device 20 is a liquid crystal display device, a display control driver of the liquid crystal display device is used, and if it is an organic EL element. An organic EL element display control driver is used.
  • the sound generation unit 26 generates a preset sound when the switch unit 18a, 18b, 18c is operated, or an icon or the like displayed on the screen of the display device 20 is operated by touching the display unit 14. Is.
  • the sound generator 26 includes a speaker (not shown) for generating sound and a driver (not shown) for applying a sound signal as an electric signal to the speaker.
  • control unit 28 associates the position information of the touch panel 12 with the image display of the display device 20 in advance, so that the control unit 28 displays the image on the display control unit 24 based on the position information specified by the detection unit 22.
  • An instruction signal for display is output, and a specific image set in advance is displayed on the display device 20.
  • the sound is also controlled by a control signal from the control unit 28 when each switch unit 18a, 18b, 18c is operated by touching the display unit 14 with an icon or the like displayed on the screen of the display device 20.
  • a specific sound set in advance is generated from the sound generator 26.
  • the operation on the display unit 14 and the operations of the other devices are preset in the control unit 28 in the switch units 18a, 18b, and 18c. Thus, it is possible to operate other devices via the control unit 28.
  • the portion 16 that is not the display unit 14 does not need to be able to recognize the image of the display device, and does not need to be transparent. For this reason, the non-display part 16 does not need to be transparent or transparent.
  • the non-display portion 16 includes a portion other than the display portion 14 of the surface portion 12a and the side surface portion 12b. From the above, the non-display portion 16 may be designed, changed in color, or changed in transparency according to a place where the operation panel 10 is installed at least partially. Thereby, the designability can be improved.
  • the design is a pattern or color or a combination thereof.
  • Applying a design specifically applies, for example, decorative printing to at least a part of the non-display portion 16.
  • the decorative printing is performed by forming a specific design set in advance using a known printing method, or by sticking an adhesive sheet on which the specific design set in advance is printed.
  • corrugated shape is provided.
  • the uneven shape may be, for example, a shape such as a relief of the trademark, or a guide mark may be provided with unevenness so that the position can be determined by touch.
  • the display unit 14 is required to have a line width as thin as possible in order to ensure display quality such as clean display and brightness, but the non-display unit 16 does not need to consider such a situation.
  • the 1st detection electrode 32 and the 2nd detection electrode 34 may be visually recognized, and the width
  • the conductive film 30 constituting the touch panel 12 is not limited to the configuration in which the first detection electrode 32 and the second detection electrode 34 are arranged to face each other as shown in FIG. .
  • the display unit 14 is configured by a wiring pattern region 40 in which the first detection electrode 32 and the second detection electrode 34 are arranged orthogonally,
  • a structure in which the display electrode 16 is provided with a detection electrode 42 thicker than the first detection electrode 32 and the second detection electrode 34 in the wiring pattern region 40 can be used.
  • the term “thick” means both that the conductor constituting the electrode is thick and the conductor is wide, and the width is preferably 5 ⁇ m or more and 100 ⁇ m or less, for example.
  • the wiring pattern region in which the display unit 14 is arranged with the first detection electrode 32 and the second detection electrode 34 orthogonal to each other in plan view. 40, and the non-display portion 16 can be configured such that the detection electrodes 44 having a larger interval than the interval between the first detection electrodes 32 and the interval between the second detection electrodes 34 in the wiring pattern region 40 are provided. . Even in this case, by providing the detection electrodes 44 with a wide interval, a wider gap 43 is formed between the detection electrodes 44 than between the first detection electrodes 32 and between the second detection electrodes 34. Thereby, the freedom degree of wiring layout can be made high.
  • each switch part 18a, 18b, 18c, on / off of a switch is detected by the presence or absence of the contact to the area
  • the position touched by the touch panel 12 is detected by the detection unit 22, and if the control unit 28 determines that the switch unit 18 a, 18 b, 18 c is one of the switch units 18 a, 18 c, A specific preset action assigned to 18b and 18c is generated. For example, by displaying a preset specific image, switching the display image, turning off the screen of the display device 20, generating sound from the sound generating unit 26, changing the volume of sound generated from the sound generating unit 26, and the like. is there. If the display unit 14 is touched, the position is detected by the detection unit 22, and the touched position is a control unit 28 that performs a preset operation, the content of the display image on the display device 20 is displayed. A specific process set in advance according to is performed.
  • a predetermined specific operation assigned to each icon is executed. For example, display of a specific image set in advance, display image switching, device operation, and the like. Moreover, if the display part 14 is moved in the state in which the display part 14 was touched, the display screen of the display device 20 may scroll. In addition to this, the display image is enlarged or reduced for so-called multi-touch.
  • the operation of the device caused by the touch of the touch panel 12 is set in advance, is set in the control unit 28, and the display control unit 24 is controlled by the control unit 28 to switch the display screen on the display device 20 or the like. Is made.
  • the display unit 14 and the switch units 18a, 18b, and 18c are integrally provided on one touch panel 12.
  • each of the switch portions 18a, 18b, and 18c can be easily manufactured at an arbitrary position on the touch panel 12, and therefore, the degree of freedom in providing the switch portion is high. Shapes that are expected to improve operability and reduce costs can be designed freely. Furthermore, even if the switch unit increases or decreases according to the layout, the switch unit can be easily provided according to the increase / decrease, and it is possible to deal with a small variety of products.
  • FIG. 4A is a schematic perspective view showing an operation panel including a touch panel having a three-dimensional shape according to the second embodiment of the present invention
  • FIG. 4B is a switch portion of the touch panel having a three-dimensional shape. It is a schematic diagram which shows the structure of these.
  • the same components as those of the operation panel 10 of the first embodiment shown in FIG. 1A are denoted by the same reference numerals, and detailed description thereof is omitted.
  • an operation panel 10a in which a touch panel 50 having a three-dimensional shape and the display device 20 are combined will be described as an example.
  • the usage pattern of the touch panel having the three-dimensional shape of the present invention is not limited to the operation panel 10a of the present embodiment, but is used as an operation switch using a display with a touch panel or a touch panel function. be able to.
  • the touch panel 50 having the three-dimensional shape of the present embodiment is further provided with a mechanical switch 19 on the surface portion 12a of the touch panel 12, and Since the board
  • the mechanical switch 19 is provided as described above.
  • the mechanical switch 19 is also assigned an arbitrary operation for its on / off in the same manner as the above-described switch portions 18a, 18b, and 18c, and is preset in the control portion 28.
  • the screen of the display device 20 is turned off, or the volume of sound generated from the sound generator 26 is changed.
  • the mechanical switch 19 is disposed so as to penetrate the surface portion 12a of the touch panel 12, and is connected to a substrate 52 provided facing the lower surface of the surface portion 12a. .
  • the substrate 52 is for the mechanical switch 19 and is connected to the detection unit 22.
  • the control unit 28 determines whether the mechanical switch 19 is operated.
  • the control unit 28 executes preset operation contents.
  • switches can be used for the mechanical switch 19 and the substrate 52.
  • the mechanical switch 19 for example, a push button switch, a push switch, a tactile switch, a rocker switch, a toggle switch, and a rotary switch can be used.
  • the position and number of the mechanical switches are not particularly limited, and are determined as appropriate depending on the usage form and application.
  • the touch panel 50 preferably includes a display unit and an operation unit, and at least one detection electrode is common. There is a wiring region on the entire surface where the detection electrodes conforming to a certain design rule are orthogonal in a plan view. Further, when a thin metal line is used for the detection electrode, the display unit 14 is required to have a line width as thin as possible in order to ensure display quality such as clean display and brightness as described above.
  • the mechanical switch 19 in order to provide the mechanical switch 19, a part of the first detection electrode 32 and the second detection electrode 34 shown in FIG. And a mechanical switch 19 is provided in the notch. An insulating seal is applied to the notch to eliminate environmental influences. In this case, the installation location of the mechanical switch 19 in the non-display portion 16 is determined in advance, and the arrangement of the first detection electrode 32 and the second detection electrode 34 is determined so that the location can be cut out. It is preferable to keep it.
  • the mechanical switch is not changed without changing the arrangement of the detection electrodes. 19 can be provided.
  • the configuration of the conductive film 30a shown in FIG. 3A and the conductive film 30b shown in FIG. 3B is preferable for the touch panel 50 of the present embodiment in which the mechanical switch 19 is provided.
  • the touch panel 50 of this embodiment can also obtain the same effect as the touch panel 12 of the first embodiment.
  • a switch that requires a mechanical locking mechanism such as a hazard switch in an automobile is installed, or a switch that operates blindly as a hand like an audio volume, the entire operation is performed.
  • a touch panel with electrostatic capacity it is difficult for a touch panel with electrostatic capacity.
  • a mechanical switch can be installed at the same time as described above. Thereby, the design freedom can be further increased as compared with the touch panel 12 of the first embodiment.
  • the wiring area is formed as a whole.
  • the scanning range for viewing the change in the electrostatic capacitance by the detection unit 22 is wide. Therefore, the positions of the display unit 14 and the switch units 18a, 18b, and 18c may be specified, and only the positions of the display unit 14 and the switch units 18a, 18b, and 18c may be scanned. As a result, the scanning efficiency can be improved, and this is particularly effective when the touch panel is enlarged. Moreover, the capability requested
  • the touch panel 12 of the first embodiment and the touch panel 50 of the second embodiment have a three-dimensional shape, and the position of the intersection of the detection electrodes may be shifted between the state before molding and after molding. As a result, since the detection position is shifted, it is necessary to perform calibration in a three-dimensional shape after molding. In this case, calibration is performed by a touch test using a stylus pen. As the calibration method, a known method used for a touch panel can be used as appropriate. As for the position of the switch unit, the position of the switch unit is stored in the control unit 28 by a touch test, and teaching is performed for setting. In the present invention, the calibration includes teaching.
  • the present invention is basically configured as described above. As described above, the touch panel having the three-dimensional shape of the present invention, the touch panel drive method, and the touch panel calibration method have been described in detail, but the present invention is not limited to the above-described embodiment, and the scope of the present invention is not deviated. Of course, various improvements or modifications may be made.

Abstract

A touch panel having a three-dimensional shape wherein multiple detection electrodes are arranged opposing one another. The touch panel has a display unit in which a display device is arranged, and has an operation unit. The detection electrodes are provided in at least a portion of the display unit and the operation unit. Preferably at least one of the multiple detection electrodes is shared by the display unit and the operation unit.

Description

３次元形状を有するタッチパネル、タッチパネルの駆動方法およびタッチパネルのキャリブレーション方法Touch panel having three-dimensional shape, touch panel drive method, and touch panel calibration method
　本発明は、液晶表示装置等の表示装置とともに用いられる３次元形状を有するタッチパネル、このタッチパネルの駆動方法およびキャリブレーション方法に関し、特に、対向する複数の検出電極が配置された導電性フィルムを３次元成型して、表示部とその他の部分で構成したタッチパネル、さらにメカニカルなスイッチを配置できるタッチパネル、これらのタッチパネルの駆動方法およびキャリブレーション方法に関する。 The present invention relates to a touch panel having a three-dimensional shape used together with a display device such as a liquid crystal display device, a driving method and a calibration method of the touch panel, and in particular, a three-dimensional conductive film in which a plurality of opposing detection electrodes are arranged. The present invention relates to a touch panel that is molded and configured with a display unit and other parts, a touch panel on which a mechanical switch can be arranged, a driving method of the touch panel, and a calibration method.
　近年、タッチパネルを使用した機器が数多く上市されている。これらのタッチパネルは、接触を検出する検出電極およびカバーガラス等を貼り合わせて作られている。
　特許文献１には、複数の電極が配置された薄膜からなり、電極の静電容量の変化に基づいて薄膜上におけるユーザの操作位置を検出する操作位置検出センサと、押圧面に対するユーザの押圧操作を検出し、キー入力信号を生成するキー入力手段とを有し、操作位置検出センサの薄膜がキー入力手段の押圧面の少なくとも一部に重複させて形成されている携帯情報端末が記載されている。 In recent years, many devices using touch panels have been put on the market. These touch panels are made by laminating a detection electrode for detecting contact, a cover glass, and the like.
Patent Document 1 includes an operation position detection sensor that includes a thin film in which a plurality of electrodes are arranged, detects an operation position of the user on the thin film based on a change in capacitance of the electrode, and a user's pressing operation on the pressing surface. And a key input means for detecting a key input signal, and a portable information terminal in which the thin film of the operation position detection sensor is formed to overlap at least a part of the pressing surface of the key input means is described. Yes.
　特許文献２には、静電容量型又は電界効果型のタッチパネルを備え、車両のインストルメントパネルに搭載されるタッチパネル装置が記載されている。特許文献２に記載のタッチパネルには、タッチスイッチ、ボリューム等の可変抵抗器やロータリースイッチ等の電子部品が配置されている。
　特許文献３には、前面板の一部に設けた開口部に押圧によるメカニカルなスイッチを設置することができる静電容量型入力装置が記載されている。 Patent Document 2 describes a touch panel device that includes a capacitance type or field effect type touch panel and is mounted on an instrument panel of a vehicle. In the touch panel described in Patent Document 2, electronic components such as a touch switch, a variable resistor such as a volume, and a rotary switch are arranged.
Patent Document 3 describes a capacitance-type input device in which a mechanical switch by pressing can be installed in an opening provided in a part of a front plate.
特開２００８－２５８８０５号公報JP 2008-258805 A 特開２００８－３３７０１号公報JP 2008-33701 A 特開２０１３－７７０９８号公報JP 2013-77098 A
　上述のように特許文献１～３には、静電容量を利用した指示入力可能なものにメカニカルスイッチが設けられたものが記載されている。特許文献１～３では、指示入力等に利用されるスイッチ等の操作部の変更について何ら考慮されておらず、スイッチの増減がある場合、変更されたスイッチを配置するために再度スイッチを設計する必要があり、設計自由度が低く、少量多品種に対応することが難しいという問題点がある。 As described above, Patent Documents 1 to 3 describe a device in which an instruction can be input using capacitance and a mechanical switch is provided. In Patent Documents 1 to 3, no consideration is given to changes in the operation unit such as a switch used for instruction input or the like, and when there is an increase or decrease in the switch, the switch is designed again in order to arrange the changed switch. There is a problem that it is necessary, the degree of freedom in design is low, and it is difficult to deal with a small variety of products.
　本発明の目的は、前述の従来技術に基づく問題点を解消し、特に、対向する複数の検出電極が配置された導電性フィルムからなり、表示部とその他の部分で構成した３次元形状を有するタッチパネル、このタッチパネルの駆動方法およびタッチパネルのキャリブレーション方法を提供することにある。 The object of the present invention is to solve the above-mentioned problems based on the prior art, and in particular, it is made of a conductive film in which a plurality of opposing detection electrodes are arranged and has a three-dimensional shape composed of a display part and other parts A touch panel, a touch panel driving method, and a touch panel calibration method are provided.
　上記目的を達成するために、本発明は、対向する複数の検出電極が配置された３次元形状を有するタッチパネルであって、表示装置が配置される表示部と、操作部とを有し、表示部と操作部の少なくとも一部に検出電極が設けられることを特徴とする３次元形状を有するタッチパネルを提供するものである。
　検出電極は、少なくとも一部が１～３０μｍ幅の金属細線で構成されることが好ましい。
　例えば、表示部と操作部とは、複数の検出電極のうち、少なくとも１つの検出電極が共通している。 In order to achieve the above object, the present invention is a touch panel having a three-dimensional shape in which a plurality of opposing detection electrodes are arranged, and includes a display unit on which a display device is arranged, and an operation unit. Provided is a touch panel having a three-dimensional shape, characterized in that detection electrodes are provided on at least a part of the part and the operation part.
It is preferable that at least a part of the detection electrode is composed of a fine metal wire having a width of 1 to 30 μm.
For example, the display unit and the operation unit share at least one detection electrode among the plurality of detection electrodes.
　表示部ではない部分に配置された検出電極は、表示部に配置された検出電極に比して太いことが好ましい。また、表示部ではない部分に配置された検出電極の間隔は、表示部に配置された検出電極の間隔に比して広いことが好ましい。さらにメカニカルなスイッチを有する構成でもよい。例えば、表示部ではない部分の少なくとも一部に、意匠が施されている。 It is preferable that the detection electrode arranged in the portion other than the display unit is thicker than the detection electrode arranged in the display unit. Further, it is preferable that the interval between the detection electrodes arranged in the portion other than the display portion is wider than the interval between the detection electrodes arranged in the display portion. Furthermore, the structure which has a mechanical switch may be sufficient. For example, a design is applied to at least a part of the portion that is not the display portion.
　また、本発明では、対向する複数の検出電極が配置された３次元形状を有するタッチパネルの駆動方法であって、タッチパネルには、表示装置が配置される表示部と、操作部とが設けられており、表示部および操作部については、タッチ検出のためのスキャンをし、表示部および操作部ではない部分については、タッチ検出のためのスキャンをしないことを特徴とする３次元形状を有するタッチパネルを提供するものである。 According to the present invention, there is provided a driving method for a touch panel having a three-dimensional shape in which a plurality of opposing detection electrodes are arranged. The touch panel includes a display unit on which a display device is arranged and an operation unit. A touch panel having a three-dimensional shape is characterized in that the display unit and the operation unit are scanned for touch detection, and the non-display unit and the operation unit are not scanned for touch detection. It is to provide.
　さらに、本発明では、対向する複数の検出電極が配置された３次元形状を有するタッチパネルのキャリブレーション方法であって、タッチパネルには、表示装置が配置される表示部と、操作部とが設けられており、タッチパネルを３次元形状の状態で、タッチテストでキャリブレーションすることを特徴とする３次元形状を有するタッチパネルのキャリブレーション方法を提供するものである。 Furthermore, in the present invention, there is provided a calibration method for a touch panel having a three-dimensional shape in which a plurality of opposing detection electrodes are arranged. The touch panel includes a display unit on which a display device is arranged and an operation unit. A calibration method for a touch panel having a three-dimensional shape is provided, wherein the touch panel is calibrated by a touch test in a three-dimensional shape state.
　本発明によれば、少量多品種への対応を容易にした上で一体成型で表示部と操作部を有する３次元形状のタッチパネルを実現することができる。
　また、タッチパネルの駆動方法によれば、効率よくタッチ検出することが可能となる。
　さらには、タッチパネルのキャリブレーション方法により、３次元状態での正確な位置検出が可能となる。 According to the present invention, it is possible to realize a three-dimensional touch panel having a display unit and an operation unit by integral molding while facilitating the correspondence to a small variety of products.
In addition, according to the touch panel driving method, it is possible to efficiently perform touch detection.
Further, the touch panel calibration method enables accurate position detection in a three-dimensional state.
（ａ）は、本発明の第１の実施形態の３次元形状を有するタッチパネルを備えた操作盤を示す模式的斜視図であり、（ｂ）は、３次元形状を有するタッチパネルのスイッチの一例を示す模式的斜視図であり、（ｃ）は、３次元形状を有するタッチパネルのスイッチの他の例を示す模式的斜視図である。(A) is a typical perspective view which shows the operation panel provided with the touch panel which has the three-dimensional shape of the 1st Embodiment of this invention, (b) is an example of the switch of the touch panel which has a three-dimensional shape. It is a typical perspective view to show, (c) is a typical perspective view which shows the other example of the switch of the touchscreen which has a three-dimensional shape. （ａ）は、本発明の実施形態の３次元形状を有するタッチパネルの導電性フィルムの第１の例を示す模式的平面図であり、（ｂ）は、図２（ａ）のタッチパネルの導電性フィルムを示す模式的断面図であり、（ｃ）は、タッチパネルの導電性フィルムの他の例を示す模式的断面図である。(A) is a schematic top view which shows the 1st example of the electroconductive film of the touchscreen which has the three-dimensional shape of embodiment of this invention, (b) is the electroconductivity of the touchscreen of Fig.2 (a). It is typical sectional drawing which shows a film, (c) is typical sectional drawing which shows the other example of the electroconductive film of a touchscreen. （ａ）は、本発明の実施形態の３次元形状を有するタッチパネルの導電性フィルムの第２の例を示す模式的平面図であり、（ｂ）は、本発明の実施形態の３次元形状を有するタッチパネルの導電性フィルムの第３の例を示す模式的平面図である。(A) is a schematic plan view which shows the 2nd example of the electroconductive film of the touchscreen which has the three-dimensional shape of embodiment of this invention, (b) is the three-dimensional shape of embodiment of this invention. It is a schematic plan view which shows the 3rd example of the electroconductive film of the touch panel which has. （ａ）は、本発明の第２の実施形態の３次元形状を有するタッチパネルを備えた操作盤を示す模式的斜視図であり、（ｂ）は、３次元形状を有するタッチパネルの操作部の構成を示す模式図である。(A) is a typical perspective view which shows the operation panel provided with the touch panel which has the three-dimensional shape of the 2nd Embodiment of this invention, (b) is a structure of the operation part of the touch panel which has a three-dimensional shape. It is a schematic diagram which shows.
　以下に、添付の図面に示す好適実施形態に基づいて、本発明の３次元形状を有するタッチパネル、タッチパネルの駆動方法およびタッチパネルのキャリブレーション方法を詳細に説明する。
　図１（ａ）は、本発明の第１の実施形態の３次元形状を有するタッチパネルを備えた操作盤を示す模式的斜視図であり、（ｂ）は、３次元形状を有するタッチパネルのスイッチの一例を示す模式的斜視図であり、（ｃ）は、３次元形状を有するタッチパネルのスイッチの他の例を示す模式的斜視図である。図２（ａ）は、本発明の実施形態の３次元形状を有するタッチパネルの導電性フィルムの第１の例を示す模式的平面図であり、（ｂ）は、図２（ａ）のタッチパネルの導電性フィルムを示す模式的断面図であり、（ｃ）は、タッチパネルの導電性フィルムの他の例を示す模式的断面図である。 Hereinafter, a touch panel having a three-dimensional shape, a touch panel driving method, and a touch panel calibration method according to the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
FIG. 1A is a schematic perspective view showing an operation panel including a touch panel having a three-dimensional shape according to the first embodiment of the present invention, and FIG. 1B is a diagram of a switch of a touch panel having a three-dimensional shape. It is a typical perspective view which shows an example, (c) is a typical perspective view which shows the other example of the switch of the touchscreen which has a three-dimensional shape. FIG. 2A is a schematic plan view showing a first example of a conductive film of a touch panel having a three-dimensional shape according to an embodiment of the present invention, and FIG. 2B is a schematic view of the touch panel of FIG. It is typical sectional drawing which shows an electroconductive film, (c) is typical sectional drawing which shows the other example of the electroconductive film of a touchscreen.
　本実施形態では、図１（ａ）に示すように、３次元形状を有するタッチパネル１２と表示装置２０とを組み合わせた操作盤１０を例にして説明する。操作盤１０は、各種機器を操作するために利用されるものであり、各種機器への入力インターフェースとして利用できるものである。なお、本発明の３次元形状を有するタッチパネルの使用形態は、本実施形態の操作盤１０に限定されるものではなく、これ以外にタッチパネル付表示器またはタッチパネル機能を用いた操作スイッチとして用いることができる。
　図１（ａ）に示す操作盤１０は、タッチパネル１２と、表示装置２０と、検出部２２と、表示制御部２４と、音声発生部２６と、制御部２８とを有する。 In the present embodiment, as shown in FIG. 1A, an operation panel 10 in which a touch panel 12 having a three-dimensional shape and a display device 20 are combined will be described as an example. The operation panel 10 is used to operate various devices, and can be used as an input interface to various devices. The usage pattern of the touch panel having a three-dimensional shape according to the present invention is not limited to the operation panel 10 according to the present embodiment, but may be used as an operation switch using a display with a touch panel or a touch panel function. it can.
The operation panel 10 shown in FIG. 1A includes a touch panel 12, a display device 20, a detection unit 22, a display control unit 24, a sound generation unit 26, and a control unit 28.
　タッチパネル１２は、ほぼ全面に対向する複数の検出電極が配置された導電性フィルム３０（図２（ａ）参照）で構成されている。タッチパネル１２は、例えば、静電容量式である。タッチパネル１２は、一枚の長い板材を長手方向の途中で曲げられた表面部１２ａと、表面部１２ａの両側が折り曲げられた側面部１２ｂとを有する。なお、タッチパネル１２は図１（ａ）に示すものに限定されるものではない。本発明の３次元形状とは、平板ではなく、少なくとも一部を曲げる等の変形が加えられた立体的な形状を有するものである。 The touch panel 12 is composed of a conductive film 30 (see FIG. 2A) in which a plurality of detection electrodes facing almost the entire surface are arranged. The touch panel 12 is, for example, a capacitance type. The touch panel 12 includes a surface portion 12a obtained by bending a long plate material in the middle of the longitudinal direction, and side surface portions 12b obtained by bending both sides of the surface portion 12a. The touch panel 12 is not limited to the one shown in FIG. The three-dimensional shape of the present invention is not a flat plate but a three-dimensional shape to which a deformation such as bending at least a part is added.
　タッチパネル１２は、検出部２２に接続されており、タッチパネル１２への接触は検出部２２で検出される。例えば、静電容量式であれば、検出部２２によりタッチパネル１２で静電容量が変化した位置が検出される。検出部２２での位置検出結果が制御部２８に出力される。制御部２８で検出部２２での検出結果に基づいて表示制御部２４および音声発生部２６を制御する。
　検出部２２は、静電容量が変化した位置を特定することができれば、その構成は特に限定されるものではなく、公知の静電容量式の検出部を適宜用いることができる。タッチパネル１２は、静電容量式のものに限定されるものではなく、例えば、抵抗膜式等の他の検出方式を採用することができる。この場合、検出部２２もタッチパネル１２の構成および検出方式に応じたものが適宜用いられる。 The touch panel 12 is connected to the detection unit 22, and contact with the touch panel 12 is detected by the detection unit 22. For example, in the case of the capacitance type, the position where the capacitance has changed on the touch panel 12 is detected by the detection unit 22. The position detection result in the detection unit 22 is output to the control unit 28. The control unit 28 controls the display control unit 24 and the sound generation unit 26 based on the detection result of the detection unit 22.
The configuration of the detection unit 22 is not particularly limited as long as the position where the capacitance has changed can be specified, and a known capacitance type detection unit can be appropriately used. The touch panel 12 is not limited to a capacitance type, and other detection methods such as a resistance film type can be employed. In this case, the detection unit 22 is appropriately used according to the configuration and detection method of the touch panel 12.
　タッチパネル１２では、表面部１２ａに表示装置２０が設けられる表示部１４と、操作部として機能するスイッチ部１８ａ、１８ｂ、１８ｃが導電性フィルムの別々の位置に設けられている。各スイッチ部１８ａ、１８ｂ、１８ｃには、それぞれオンオフにより生じる特定の動作が予め割り当てられている。
　なお、操作部は、表示装置２０の制御のための指示入力、および他の機器が接続されていれば、その機器の制御をするための指示入力を行うためのものである。本実施形態では、操作部としてスイッチ部１８ａ、１８ｂ、１８ｃを例示したが、上記指示入力を行う機能を発揮することができれば、これに限定されるものではない。 In the touch panel 12, the display unit 14 provided with the display device 20 on the surface unit 12a and the switch units 18a, 18b, and 18c functioning as the operation unit are provided at different positions of the conductive film. Each switch unit 18a, 18b, 18c is assigned in advance with a specific operation caused by on / off.
The operation unit is for inputting an instruction for controlling the display device 20 and, if another device is connected, inputting an instruction for controlling the device. In the present embodiment, the switch units 18a, 18b, and 18c are exemplified as the operation unit. However, the present invention is not limited to this as long as the function of performing the instruction input can be exhibited.
　各スイッチ部１８ａ、１８ｂ、１８ｃのオンオフの判定基準として、接触の有無、接触の回数等が予め制御部２８に設定されている。制御部２８で、検出部２２による位置検出に基づき、各判定基準に応じて各スイッチ部１８ａ、１８ｂ、１８ｃオンオフが判定される。また、制御部２８では、各スイッチ部１８ａ、１８ｂ、１８ｃのオンオフに応じて割り当てられた動作を発揮させる。
　スイッチ部１８ａ、１８ｂ、１８ｃは、接触の有無によりオンまたはオフと判定されるものが一般的であるが、これに限定されるものではなく、例えば、スライドスイッチ、ロータリースイッチのような構成とすることもできる。 Presence / absence of contact, the number of times of contact, etc. are set in advance in the control unit 28 as on / off determination criteria for each of the switch units 18a, 18b, 18c. Based on the position detection by the detection unit 22, the control unit 28 determines whether each switch unit 18 a, 18 b, 18 c is on or off according to each determination criterion. In addition, the control unit 28 causes the assigned operation according to the on / off state of the switch units 18a, 18b, and 18c.
The switch portions 18a, 18b, and 18c are generally determined to be on or off depending on the presence or absence of contact, but are not limited thereto, and are configured as, for example, a slide switch or a rotary switch. You can also
　各スイッチ部１８ａ、１８ｂ、１８ｃの構成としては、例えば、図１（ｂ）に示すように突出した突出部１９ａで構成してもよく、図１（ｃ）に示すようにシート１９ｂとしてもよい。突出部１９ａで構成した場合、突出部１９ａの素材、硬さ等で予め設定された特定のクリック感を達成することができる。また、シート１９ｂで構成した場合、目立たないようにすることができ、余分な突起がない等、スタイリッシュな操作盤１０を実現できる。
　いずれの場合も、各スイッチ部１８ａ、１８ｂ、１８ｃは、位置と動作を制御部２８で対応付ければ、タッチパネル１２上のどこにでも、すなわち、表面部１２ａおよび側面部１２ｂのどこにでも作製することができるため、タッチパネル１２上の任意の位置に操作部として、スイッチ部１８ａ、１８ｂ、１８ｃを容易に作製することができる。なお、スイッチ部１８ａ、１８ｂ、１８ｃの形状は、図示例のように円形に限定されるものではなく、任意の形状とすることができる。 As a structure of each switch part 18a, 18b, 18c, for example, you may comprise by the protrusion part 19a which protruded as shown in FIG.1 (b), and it is good also as the sheet | seat 19b as shown in FIG.1 (c). . In the case of the projecting portion 19a, it is possible to achieve a specific click feeling preset by the material, hardness, etc. of the projecting portion 19a. Moreover, when comprised with the sheet | seat 19b, it can be made not conspicuous and the stylish operation panel 10 can be implement | achieved, such as there being no extra protrusion.
In any case, each switch part 18a, 18b, 18c can be produced anywhere on the touch panel 12, that is, anywhere on the surface part 12a and the side part 12b, as long as the position and the operation are associated by the control part 28. Therefore, the switch portions 18a, 18b, and 18c can be easily manufactured as operation portions at arbitrary positions on the touch panel 12. Note that the shape of the switch portions 18a, 18b, and 18c is not limited to a circle as in the illustrated example, and may be an arbitrary shape.
　タッチパネル１２を構成する導電性フィルム３０は、その全域に亘り、図２（ａ）に示すように、第１の検出電極３２と第２の検出電極３４とが平面視で交差して配置されている。図１（ａ）および図２（ａ）では、詳細に図示していないが、表面部１２ａも側面部１２ｂにも第１の検出電極３２と第２の検出電極３４とが配置されている。第１の検出電極３２と第２の検出電極３４とが配置されている領域を配線領域という。
　上述の表示部１４と、各スイッチ部１８ａ、１８ｂ、１８ｃは配線領域に配置されている。例えば、図１（ａ）の構成では、表示部１４とスイッチ部１８ａ、１８ｂ、１８ｃが第２の検出電極３４の延在方向に配置されているため、表示部１４と各スイッチ部１８ａ、１８ｂ、１８ｃは、それぞれ少なくとも１つの第２の検出電極３４が共通することとなる。また、スイッチ部１８ａ、１８ｂ、１８ｃは、第１の検出電極３２の延在方向に沿って配置されているため、少なくとも１つの第１の検出電極３２が共通することとなる。 As shown in FIG. 2A, the conductive film 30 constituting the touch panel 12 is arranged such that the first detection electrode 32 and the second detection electrode 34 intersect each other in plan view as shown in FIG. Yes. Although not shown in detail in FIGS. 1 (a) and 2 (a), the first detection electrode 32 and the second detection electrode 34 are arranged on the surface portion 12a and the side surface portion 12b. A region where the first detection electrode 32 and the second detection electrode 34 are arranged is referred to as a wiring region.
The display unit 14 and the switch units 18a, 18b, and 18c are arranged in the wiring area. For example, in the configuration of FIG. 1A, since the display unit 14 and the switch units 18a, 18b, and 18c are arranged in the extending direction of the second detection electrode 34, the display unit 14 and the switch units 18a and 18b are arranged. , 18c, at least one second detection electrode 34 is common. Further, since the switch portions 18a, 18b, and 18c are arranged along the extending direction of the first detection electrode 32, at least one first detection electrode 32 is shared.
　導電性フィルム３０は、図２（ｂ）に示すように、第１の検出電極３２が基体３１の表面３１ａに形成され、第２の検出電極３４は基体３１の裏面３１ｂに形成されている。第１の検出電極３２に粘着層３５を介して保護部材３６が設けられている。
　なお、第１の検出電極３２と第２の検出電極３４は、図２（ｂ）に示すように基体３１の各面に形成されるものに限定されるものではなく、図２（ｃ）に示すように、第１の検出電極３２および第２の検出電極３４に保護膜３８を設ける構成でもよい。この場合、保護膜３８に粘着層３５を介して保護部材３６が設けられている。保護膜３８には、例えば、フッ素樹脂が用いられる。また、保護膜３８として、ＰＥＴフィルム等の樹脂フィルムを用いることもできる。 In the conductive film 30, as shown in FIG. 2B, the first detection electrode 32 is formed on the front surface 31 a of the base 31, and the second detection electrode 34 is formed on the back surface 31 b of the base 31. A protective member 36 is provided on the first detection electrode 32 via an adhesive layer 35.
In addition, the 1st detection electrode 32 and the 2nd detection electrode 34 are not limited to what is formed in each surface of the base | substrate 31, as shown in FIG.2 (b), FIG.2 (c). As shown, the first detection electrode 32 and the second detection electrode 34 may be provided with a protective film 38. In this case, the protective member 36 is provided on the protective film 38 via the adhesive layer 35. For example, a fluororesin is used for the protective film 38. In addition, a resin film such as a PET film can be used as the protective film 38.
　基体３１は、第１の検出電極３２と第２の検出電極３４を支持するものである。この基体３１は、表示装置２０の画面に表示された画像を認識することができる程度の透過度を有するものであればよい。基体３１には、例えば、プラスチックフィルム、プラスチック板、ガラス板等を用いることができる。プラスチックフィルムおよびプラスチック板は、例えば、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）等のポリエステル類、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）、ポリスチレン、エチレンビニルアセテート（ＥＶＡ）／シクロオレフィンポリマー（ＣＯＰ）／シクロオレフィンポリマー（ＣＯＣ）等のポリオレフィン類、ビニル系樹脂、その他、ポリカーボネート（ＰＣ）、ポリアミド、ポリイミド、アクリル樹脂、トリアセチルセルロース（ＴＡＣ）等で構成することができる。光透過性および加工性等の観点から、ポリエチレンテレフタレート（ＰＥＴ）で構成することが好ましい。 The base 31 supports the first detection electrode 32 and the second detection electrode 34. The substrate 31 only needs to have a degree of transparency that can recognize an image displayed on the screen of the display device 20. For the base 31, for example, a plastic film, a plastic plate, a glass plate or the like can be used. Plastic films and plastic plates are, for example, polyesters such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyethylene (PE), polypropylene (PP), polystyrene, ethylene vinyl acetate (EVA) / cycloolefin polymer (COP). ) / Cycloolefin polymer (COC) and other polyolefins, vinyl resins, polycarbonate (PC), polyamide, polyimide, acrylic resin, triacetyl cellulose (TAC) and the like. From the viewpoints of light transmittance and processability, it is preferable to use polyethylene terephthalate (PET).
　第１の検出電極３２と第２の検出電極３４は、導電性を有する導体で構成される。この導体は、特に限定されるものではなく、例えば、ＩＴＯ、Ａｕ、ＡｇまたはＣｕで形成される。第１の検出電極３２と第２の検出電極３４を構成する導体は、上記ＩＴＯ、Ａｕ、ＡｇまたはＣｕに、さらにバインダを含むもので構成してもよい。導体は、バインダを含むことにより、曲げ加工しやすくなり、かつ曲げ耐性が向上する。このため、第１の検出電極３２と第２の検出電極３４はバインダを含む導体で構成することが好ましい。バインダとしては、導電性フィルムの配線に利用されるものを適宜用いることができ、例えば、特開２０１３－１２６０４号公報に記載されているものを用いることができる。検出電極としては、抵抗が低くできること、３次元成型の際に断線しにくいことから、金属細線で構成される電極を採用することがより好ましい。また、断線が発生した場合にも検出電極の抵抗値への影響を低減できるため、金属細線が交差してメッシュ状となったメッシュ電極を採用することが好ましい。 The first detection electrode 32 and the second detection electrode 34 are composed of conductive conductors. This conductor is not particularly limited, and is made of, for example, ITO, Au, Ag, or Cu. The conductor constituting the first detection electrode 32 and the second detection electrode 34 may be composed of the ITO, Au, Ag, or Cu and further containing a binder. By including a binder, the conductor can be easily bent and the bending resistance is improved. For this reason, it is preferable to comprise the 1st detection electrode 32 and the 2nd detection electrode 34 with the conductor containing a binder. As a binder, what is used for the wiring of an electroconductive film can be used suitably, For example, what is described in Unexamined-Japanese-Patent No. 2013-12604 can be used. As the detection electrode, it is more preferable to employ an electrode composed of a thin metal wire because resistance can be lowered and disconnection is difficult during three-dimensional molding. Moreover, since the influence on the resistance value of the detection electrode can be reduced even when a disconnection occurs, it is preferable to employ a mesh electrode in which metal fine wires intersect to form a mesh.
　なお、メッシュ電極としては、例えば、特開２０１１－１２９５０１号公報、および特開２０１３－１４９２３６号公報等に開示されている格子状のメッシュ配線を用いることができる。これ以外にも、例えば、静電容量式のタッチパネルに用いられる検出電極を適宜用いることができる。
　メッシュ電極を採用した場合の金属細線の幅については、表示部１４では表示の綺麗さ、明るさ等の表示品質を確保するためにできるだけ細い線幅が求められ、また視認性の点からも細い方が好ましい。この点から、金属細線の場合、第１の検出電極３２の幅と第２の検出電極３４の幅は、例えば、少なくとも一部が１～３０μｍであるが、７μｍ未満であることが好ましく、より好ましくは５μｍ以下である。
　金属細線の幅については、表示部１４では上述の通りであるが、表示部１４以外の操作部およびその他の領域では１～１００μｍであることが好ましい。 As the mesh electrode, for example, lattice-like mesh wirings disclosed in Japanese Patent Application Laid-Open Nos. 2011-129501 and 2013-149236 can be used. In addition to this, for example, a detection electrode used for a capacitive touch panel can be used as appropriate.
With regard to the width of the fine metal line when the mesh electrode is adopted, the display unit 14 is required to have a thin line width as much as possible in order to ensure display quality such as cleanness and brightness, and is also thin from the viewpoint of visibility. Is preferred. From this point, in the case of a thin metal wire, the width of the first detection electrode 32 and the width of the second detection electrode 34 are, for example, at least partly 1 to 30 μm, but preferably less than 7 μm. Preferably it is 5 micrometers or less.
The width of the fine metal wire is as described above for the display unit 14, but is preferably 1 to 100 μm in the operation unit other than the display unit 14 and other regions.
　第１の検出電極３２と第２の検出電極３４の形成方法は、特に限定されるものではない。例えば、感光性ハロゲン化銀塩を含有する乳剤層を有する感光材料を露光し、現像処理を施すことによって形成することができる。また、基体３１の表面に、それぞれ金属箔を形成し、各金属箔上にレジストをパターン状に印刷するか、または全面塗布したレジストを露光し、現像することでパターン化して、開口部の金属をエッチングすることにより第１の検出電極３２と第２の検出電極３４を形成することができる。これ以外にも、第１の検出電極３２と第２の検出電極３４の形成方法としては、上述の導体を構成する材料の微粒子を含むペーストを印刷し、ペーストに金属めっきを施す方法、および上述の導体を構成する材料の微粒子を含むインクを用いたインクジェット法を用いる方法が挙げられる。 The formation method of the first detection electrode 32 and the second detection electrode 34 is not particularly limited. For example, it can be formed by exposing a light-sensitive material having an emulsion layer containing a light-sensitive silver halide salt to development processing. Further, a metal foil is formed on the surface of the base 31 and a resist is printed in a pattern on each metal foil, or the resist applied on the entire surface is exposed and developed to form a pattern, thereby opening the metal in the opening. The first detection electrode 32 and the second detection electrode 34 can be formed by etching. In addition to this, as a method of forming the first detection electrode 32 and the second detection electrode 34, a paste containing fine particles of the material constituting the conductor is printed, and the paste is subjected to metal plating, and the above-described method. And a method using an ink jet method using an ink containing fine particles of a material constituting the conductor.
　表面部１２ａでは、表示部１４に表示装置２０が設けられる。このため、表示部１４は表示装置２０で表示される画像を認識するために透明である。なお、透明とは、表示部１４において表示装置２０の画面に表示される画像を認識することができる程度の透過度を有することをいう。操作盤１０の使用形態および使用環境等に応じて表示部１４の透過度が適宜設定される。
　表示装置２０は、動画等を含めて任意の画像を画面に表示することができれば、特に限定されるものではなく、例えば、液晶表示装置および有機ＥＬ装置等で構成される。表示装置２０は、表示制御部２４に接続されており、表示制御部２４で、その画面表示が制御される。表示制御部２４は、表示装置２０の構成に応じて適宜決定されるものであり、表示装置２０が液晶表示装置であれば、液晶表示装置の表示制御ドライバーが用いられ、有機ＥＬ素子であれば、有機ＥＬ素子の表示制御ドライバーが用いられる。 In the front surface portion 12a, the display device 20 is provided in the display unit. For this reason, the display unit 14 is transparent to recognize an image displayed on the display device 20. The term “transparent” means that the display unit 14 has a degree of transparency that allows an image displayed on the screen of the display device 20 to be recognized. The transmittance of the display unit 14 is set as appropriate according to the usage pattern and usage environment of the operation panel 10.
The display device 20 is not particularly limited as long as an arbitrary image including a moving image or the like can be displayed on the screen. For example, the display device 20 includes a liquid crystal display device and an organic EL device. The display device 20 is connected to the display control unit 24, and the screen display is controlled by the display control unit 24. The display control unit 24 is appropriately determined according to the configuration of the display device 20. If the display device 20 is a liquid crystal display device, a display control driver of the liquid crystal display device is used, and if it is an organic EL element. An organic EL element display control driver is used.
　音声発生部２６は、各スイッチ部１８ａ、１８ｂ、１８ｃの操作、表示装置２０の画面に表示されたアイコン等を表示部１４に接触することで操作した場合に、予め設定された音声を発生するものである。この音声発生部２６には音声を発生するためのスピーカ（図示せず）とスピーカに音声信号を電気信号として印加するためのドライバー（図示せず）を備える。 The sound generation unit 26 generates a preset sound when the switch unit 18a, 18b, 18c is operated, or an icon or the like displayed on the screen of the display device 20 is operated by touching the display unit 14. Is. The sound generator 26 includes a speaker (not shown) for generating sound and a driver (not shown) for applying a sound signal as an electric signal to the speaker.
　制御部２８において、タッチパネル１２の位置情報と表示装置２０の画像表示とを予め対応付けておくことにより、検出部２２で特定された位置情報に基づいて、制御部２８は表示制御部２４に画像表示をさせる指示信号を出力し、表示装置２０に予め設定された特定の画像を表示させる。また、音声についても、各スイッチ部１８ａ、１８ｂ、１８ｃの操作、表示装置２０の画面に表示されたアイコン等を表示部１４に接触することで操作した場合に、制御部２８からの制御信号により、音声発生部２６から予め設定された特定の音声を発生させる。
　また、操作盤１０は、他の機器とともに利用される場合には、表示部１４での操作、および各スイッチ部１８ａ、１８ｂ、１８ｃに、それぞれ他の機器の動作を制御部２８に予め設定しておくことで、制御部２８を介して他の機器を操作することもできる。 In the control unit 28, the control unit 28 associates the position information of the touch panel 12 with the image display of the display device 20 in advance, so that the control unit 28 displays the image on the display control unit 24 based on the position information specified by the detection unit 22. An instruction signal for display is output, and a specific image set in advance is displayed on the display device 20. In addition, the sound is also controlled by a control signal from the control unit 28 when each switch unit 18a, 18b, 18c is operated by touching the display unit 14 with an icon or the like displayed on the screen of the display device 20. A specific sound set in advance is generated from the sound generator 26.
Further, when the operation panel 10 is used together with other devices, the operation on the display unit 14 and the operations of the other devices are preset in the control unit 28 in the switch units 18a, 18b, and 18c. Thus, it is possible to operate other devices via the control unit 28.
　タッチパネル１２では、表示部１４ではない部分１６（以下、非表示部１６という）は表示装置の画像を認識できる必要がなく、透明である必要がない。このため、非表示部１６は透明であっても透明でなくてもよい。なお、図示例では、非表示部１６は表面部１２ａの表示部１４以外の部分と側面部１２ｂを含めたものである。
　上述のことから、非表示部１６については、少なくとも一部に操作盤１０が設置される場所に応じて意匠を施したり、色変えたり、透過度を変えてもよい。これにより、意匠性を向上させることができる。ここで、意匠とは、模様もしくは色彩またはこれらの結合したものである。
　意匠を施すとは、具体的には非表示部１６の少なくとも一部に、例えば、化粧印刷を施す。化粧印刷は、例えば、予め設定された特定の意匠を公知の印刷法を用いて形成するか、予め設定された特定の意匠が印刷された粘着シートを貼り付けることでなされる。または、凹凸形状を付与する。凹凸形状は、例えば、トレードマークを浮き彫りの様な形状にするでもよく、触覚で位置を判断できるようにガイドマークを凹凸で付与するでもよい。なお、表示部１４では、表示の綺麗さ、明るさ等の表示品質を確保するためにできるだけ細い線幅が求められるが、非表示部１６では、そのようなことを考慮する必要がないため、第１の検出電極３２および第２の検出電極３４が視認されてもよく、電極の幅は太くてもよい。 In the touch panel 12, the portion 16 that is not the display unit 14 (hereinafter referred to as the non-display unit 16) does not need to be able to recognize the image of the display device, and does not need to be transparent. For this reason, the non-display part 16 does not need to be transparent or transparent. In the illustrated example, the non-display portion 16 includes a portion other than the display portion 14 of the surface portion 12a and the side surface portion 12b.
From the above, the non-display portion 16 may be designed, changed in color, or changed in transparency according to a place where the operation panel 10 is installed at least partially. Thereby, the designability can be improved. Here, the design is a pattern or color or a combination thereof.
Applying a design specifically applies, for example, decorative printing to at least a part of the non-display portion 16. For example, the decorative printing is performed by forming a specific design set in advance using a known printing method, or by sticking an adhesive sheet on which the specific design set in advance is printed. Or an uneven | corrugated shape is provided. The uneven shape may be, for example, a shape such as a relief of the trademark, or a guide mark may be provided with unevenness so that the position can be determined by touch. The display unit 14 is required to have a line width as thin as possible in order to ensure display quality such as clean display and brightness, but the non-display unit 16 does not need to consider such a situation. The 1st detection electrode 32 and the 2nd detection electrode 34 may be visually recognized, and the width | variety of an electrode may be thick.
　タッチパネル１２を構成する導電性フィルム３０は、図２（ａ）に示すような全面に第１の検出電極３２と第２の検出電極３４が対向して配置された構成に限定されるものではない。例えば、図３（ａ）に示す導電性フィルム３０ａのように、表示部１４を第１の検出電極３２と第２の検出電極３４とを直交して配置した配線パターン領域４０で構成し、非表示部１６に配線パターン領域４０の第１の検出電極３２および第２の検出電極３４よりも太い検出電極４２を設ける構成のものを用いることができる。太い検出電極４２を設けることで、各検出電極４２の間に第１の検出電極３２間および第２の検出電極３４間よりも広い隙間４３が生じる。これにより、配線レイアウトの自由度を高くすることができる。なお、太いとは、電極を構成する導体の厚さが厚いことと導体の幅の広いことの両方を指し、幅は、例えば、５μｍ以上１００μｍ以下が好ましい。 The conductive film 30 constituting the touch panel 12 is not limited to the configuration in which the first detection electrode 32 and the second detection electrode 34 are arranged to face each other as shown in FIG. . For example, like the conductive film 30a shown in FIG. 3A, the display unit 14 is configured by a wiring pattern region 40 in which the first detection electrode 32 and the second detection electrode 34 are arranged orthogonally, A structure in which the display electrode 16 is provided with a detection electrode 42 thicker than the first detection electrode 32 and the second detection electrode 34 in the wiring pattern region 40 can be used. By providing the thick detection electrodes 42, a gap 43 wider than between the first detection electrodes 32 and between the second detection electrodes 34 is generated between the detection electrodes 42. Thereby, the freedom degree of wiring layout can be made high. The term “thick” means both that the conductor constituting the electrode is thick and the conductor is wide, and the width is preferably 5 μm or more and 100 μm or less, for example.
　これ以外にも、図３（ｂ）に示す導電性フィルム３０ｂのように、表示部１４を第１の検出電極３２と第２の検出電極３４とを平面視で直交して配置した配線パターン領域４０で構成し、非表示部１６に配線パターン領域４０の第１の検出電極３２の間隔および第２の検出電極３４の間隔よりも広い間隔の検出電極４４を設ける構成のものを用いることができる。この場合でも、広い間隔の検出電極４４を設けることで、各検出電極４４の間に第１の検出電極３２間および第２の検出電極３４間よりも広い隙間４３が生じる。これにより、配線レイアウトの自由度を高くすることができる。
　各スイッチ部１８ａ、１８ｂ、１８ｃでは、その領域への接触の有無、接触の回数等により、スイッチのオン、オフが検出され、多くの検出電極を必要としない。このため、図３（ａ）に示す導電性フィルム３０ａでも、図３（ｂ）に示す導電性フィルム３０ｂでも、十分に各スイッチ部１８ａ、１８ｂ、１８ｃを設けることができる。
　なお、図３（ａ）に示す導電性フィルム３０ａでも、図３（ｂ）に示す導電性フィルム３０ｂでも、表示部１４と各スイッチ部１８ａ、１８ｂ、１８ｃとは少なくとも１つの検出電極が共通していることが好ましい。 In addition to this, as in the conductive film 30b shown in FIG. 3B, the wiring pattern region in which the display unit 14 is arranged with the first detection electrode 32 and the second detection electrode 34 orthogonal to each other in plan view. 40, and the non-display portion 16 can be configured such that the detection electrodes 44 having a larger interval than the interval between the first detection electrodes 32 and the interval between the second detection electrodes 34 in the wiring pattern region 40 are provided. . Even in this case, by providing the detection electrodes 44 with a wide interval, a wider gap 43 is formed between the detection electrodes 44 than between the first detection electrodes 32 and between the second detection electrodes 34. Thereby, the freedom degree of wiring layout can be made high.
In each switch part 18a, 18b, 18c, on / off of a switch is detected by the presence or absence of the contact to the area | region, the frequency | count of contact, etc., and many detection electrodes are not required. Therefore, the switch portions 18a, 18b, and 18c can be sufficiently provided in both the conductive film 30a shown in FIG. 3A and the conductive film 30b shown in FIG. 3B.
Note that, in both the conductive film 30a shown in FIG. 3A and the conductive film 30b shown in FIG. 3B, the display unit 14 and the switch units 18a, 18b, and 18c share at least one detection electrode. It is preferable.
　操作盤１０では、タッチパネル１２で接触された位置が検出部２２で検出され、制御部２８で、各スイッチ部１８ａ、１８ｂ、１８ｃのいずれかであることと判定されれば、各スイッチ部１８ａ、１８ｂ、１８ｃに割り当てられた予め設定された特定の動作を生じさせる。例えば、予め設定された特定の画像の表示、表示画像の切り替え、表示装置２０の画面の消灯、音声発生部２６からの音声の発生、音声発生部２６から発生する音の音量を変えること等である。
　また、表示部１４に接触されて、位置が検出部２２で検出され、接触された位置が制御部２８で、予め設定された動作をさせるものであれば、表示装置２０での表示画像の内容に応じた予め設定された特定の処理がなされる。例えば、表示装置２０に各種のアイコンを表示させておいて、アイコンに相当する位置が接触されたことが検出されると、各アイコンに割り当てられた予め設定された特定の動作が実行される。例えば、予め設定された特定の画像の表示、表示画像の切り替え、機器動作等である。また、表示部１４が接触された状態で表示部１４を移動されると、表示装置２０の表示画面がスクロールすることもある。これ以外にも、いわゆるマルチタッチに対しても、表示画像が拡大または縮小される。これらのタッチパネル１２の接触により生じる機器の動作は、予め設定されており、制御部２８に設定され、制御部２８により、表示制御部２４が制御されて、表示装置２０での表示画面の切り替え等がなされる。 In the operation panel 10, the position touched by the touch panel 12 is detected by the detection unit 22, and if the control unit 28 determines that the switch unit 18 a, 18 b, 18 c is one of the switch units 18 a, 18 c, A specific preset action assigned to 18b and 18c is generated. For example, by displaying a preset specific image, switching the display image, turning off the screen of the display device 20, generating sound from the sound generating unit 26, changing the volume of sound generated from the sound generating unit 26, and the like. is there.
If the display unit 14 is touched, the position is detected by the detection unit 22, and the touched position is a control unit 28 that performs a preset operation, the content of the display image on the display device 20 is displayed. A specific process set in advance according to is performed. For example, when various icons are displayed on the display device 20 and it is detected that a position corresponding to the icon is touched, a predetermined specific operation assigned to each icon is executed. For example, display of a specific image set in advance, display image switching, device operation, and the like. Moreover, if the display part 14 is moved in the state in which the display part 14 was touched, the display screen of the display device 20 may scroll. In addition to this, the display image is enlarged or reduced for so-called multi-touch. The operation of the device caused by the touch of the touch panel 12 is set in advance, is set in the control unit 28, and the display control unit 24 is controlled by the control unit 28 to switch the display screen on the display device 20 or the like. Is made.
　本実施形態では、１つのタッチパネル１２に一体的に表示部１４と各スイッチ部１８ａ、１８ｂ、１８ｃを設けている。上述のように、各スイッチ部１８ａ、１８ｂ、１８ｃは、タッチパネル１２上の任意の位置に容易に作製することができるため、スイッチ部を設ける位置の自由度が高い。操作性の向上およびコストダウンが見込まれる形状を自由に設計できる。さらには、レイアウトに応じてスイッチ部が増減しても、それに応じてスイッチ部を容易に設けることができ、少量多品種に対応することができる。 In this embodiment, the display unit 14 and the switch units 18a, 18b, and 18c are integrally provided on one touch panel 12. As described above, each of the switch portions 18a, 18b, and 18c can be easily manufactured at an arbitrary position on the touch panel 12, and therefore, the degree of freedom in providing the switch portion is high. Shapes that are expected to improve operability and reduce costs can be designed freely. Furthermore, even if the switch unit increases or decreases according to the layout, the switch unit can be easily provided according to the increase / decrease, and it is possible to deal with a small variety of products.
　次に、本発明の第２の実施形態のタッチパネルについて説明する。
　図４（ａ）は、本発明の第２の実施形態の３次元形状を有するタッチパネルを備えた操作盤を示す模式的斜視図であり、（ｂ）は、３次元形状を有するタッチパネルのスイッチ部の構成を示す模式図である。
　なお、本実施形態においては、図１（ａ）に示す第１の実施形態の操作盤１０と同一構成物には同一符号を付して、その詳細な説明は省略する。
　本実施形態では、図４（ａ）に示すように、３次元形状を有するタッチパネル５０と表示装置２０とを組み合わせた操作盤１０ａを例にして説明する。この場合でも、本発明の３次元形状を有するタッチパネルの使用形態は、本実施形態の操作盤１０ａに限定されるものではなく、これ以外にタッチパネル付表示器またはタッチパネル機能を用いた操作スイッチとして用いることができる。 Next, a touch panel according to a second embodiment of the present invention will be described.
FIG. 4A is a schematic perspective view showing an operation panel including a touch panel having a three-dimensional shape according to the second embodiment of the present invention, and FIG. 4B is a switch portion of the touch panel having a three-dimensional shape. It is a schematic diagram which shows the structure of these.
In the present embodiment, the same components as those of the operation panel 10 of the first embodiment shown in FIG. 1A are denoted by the same reference numerals, and detailed description thereof is omitted.
In the present embodiment, as illustrated in FIG. 4A, an operation panel 10a in which a touch panel 50 having a three-dimensional shape and the display device 20 are combined will be described as an example. Even in this case, the usage pattern of the touch panel having the three-dimensional shape of the present invention is not limited to the operation panel 10a of the present embodiment, but is used as an operation switch using a display with a touch panel or a touch panel function. be able to.
　本実施形態の３次元形状を有するタッチパネル５０は、第１の実施形態のタッチパネル１２に比して、タッチパネル１２の表面部１２ａに、さらにメカニカルスイッチ１９が設けられている点、およびメカニカルスイッチ１９の操作の検出を行うための基板５２が設けられている点が異なり、それ以外の構成は、第１の実施形態のタッチパネル１２と同様の構成であるため、その詳細な説明は省略する。 Compared with the touch panel 12 of the first embodiment, the touch panel 50 having the three-dimensional shape of the present embodiment is further provided with a mechanical switch 19 on the surface portion 12a of the touch panel 12, and Since the board | substrate 52 for performing the detection of operation differs, and the structure other than that is the same structure as the touch panel 12 of 1st Embodiment, the detailed description is abbreviate | omitted.
　タッチパネル５０では、上述のようにメカニカルスイッチ１９が設けられている。メカニカルスイッチ１９も、上述のスイッチ部１８ａ、１８ｂ、１８ｃと同様に、そのオンオフに対して任意の動作が割り当てられており、制御部２８に予め設定されている。
　例えば、メカニカルスイッチ１９の操作により、表示装置２０の画面を消灯させたり、音声発生部２６から発生する音の音量を変えたりする。
　このメカニカルスイッチ１９は、図４（ｂ）に示すように、タッチパネル１２の表面部１２ａを貫通して配置されており、表面部１２ａの下面に対向して設けられた基板５２に接続されている。基板５２はメカニカルスイッチ１９用であり、検出部２２に接続されている。メカニカルスイッチ１９が操作されると、基板５２でその操作を電気信号に変換され、その電気信号が検出部２２で検出されて制御部２８にてメカニカルスイッチ１９の操作の有無が判定される。制御部２８では、予め設定された動作内容を実行させる。 In the touch panel 50, the mechanical switch 19 is provided as described above. The mechanical switch 19 is also assigned an arbitrary operation for its on / off in the same manner as the above-described switch portions 18a, 18b, and 18c, and is preset in the control portion 28.
For example, by operating the mechanical switch 19, the screen of the display device 20 is turned off, or the volume of sound generated from the sound generator 26 is changed.
As shown in FIG. 4B, the mechanical switch 19 is disposed so as to penetrate the surface portion 12a of the touch panel 12, and is connected to a substrate 52 provided facing the lower surface of the surface portion 12a. . The substrate 52 is for the mechanical switch 19 and is connected to the detection unit 22. When the mechanical switch 19 is operated, the operation is converted into an electrical signal by the substrate 52, the electrical signal is detected by the detection unit 22, and the control unit 28 determines whether the mechanical switch 19 is operated. The control unit 28 executes preset operation contents.
　メカニカルスイッチ１９と基板５２は、公知の種々のものを用いることができる。メカニカルスイッチ１９としては、例えば、押ボタンスイッチ、プッシュスイッチ、タクタイルスイッチ、ロッカースイッチ、トグルスイッチおよびロータリースイッチを用いることができる。なお、メカニカルスイッチを設ける位置および数は、特に限定されるものではなく、使用形態および用途等により適宜決定されるものである。 Various known switches can be used for the mechanical switch 19 and the substrate 52. As the mechanical switch 19, for example, a push button switch, a push switch, a tactile switch, a rocker switch, a toggle switch, and a rotary switch can be used. The position and number of the mechanical switches are not particularly limited, and are determined as appropriate depending on the usage form and application.
　タッチパネル５０では、タッチパネル１２と同様に、表示部と操作部を有し、少なくとも１つの検出電極が共通であることが好ましいものである。一定のデザインルールに則った検出電極が平面視で直交する配線領域が全面にある。さらに検出電極に金属細線を用いた場合には、表示部１４では、表示の綺麗さ、明るさ等の表示品質を確保するためにできるだけ細い線幅が求められるのは、上述の通りである。本実施形態では、メカニカルスイッチ１９を設けるには、タッチパネル５０の全面に形成された図２（ａ）に示す第１の検出電極３２および第２の検出電極３４の一部を切り欠いて切欠部を形成し、この切欠部にメカニカルスイッチ１９を設ける。切欠部には環境影響を排除するために絶縁シールを施す。この場合、非表示部１６でのメカニカルスイッチ１９の設置箇所を予め決定しておき、その箇所は切り欠き加工が可能なように第１の検出電極３２と第２の検出電極３４の配置を決定しておくことが好ましい。 As with the touch panel 12, the touch panel 50 preferably includes a display unit and an operation unit, and at least one detection electrode is common. There is a wiring region on the entire surface where the detection electrodes conforming to a certain design rule are orthogonal in a plan view. Further, when a thin metal line is used for the detection electrode, the display unit 14 is required to have a line width as thin as possible in order to ensure display quality such as clean display and brightness as described above. In the present embodiment, in order to provide the mechanical switch 19, a part of the first detection electrode 32 and the second detection electrode 34 shown in FIG. And a mechanical switch 19 is provided in the notch. An insulating seal is applied to the notch to eliminate environmental influences. In this case, the installation location of the mechanical switch 19 in the non-display portion 16 is determined in advance, and the arrangement of the first detection electrode 32 and the second detection electrode 34 is determined so that the location can be cut out. It is preferable to keep it.
　本実施形態では、図３（ａ）に示す導電性フィルム３０ａおよび（ｂ）に示す導電性フィルム３０ｂの隙間４３にメカニカルスイッチを設ける構成とすれば、検出電極の配置を変更せずにメカニカルスイッチ１９を設けることができる。このため、メカニカルスイッチ１９を設ける本実施形態のタッチパネル５０には、図３（ａ）に示す導電性フィルム３０ａおよび（ｂ）に示す導電性フィルム３０ｂの構成が好ましい。 In this embodiment, if a mechanical switch is provided in the gap 43 between the conductive film 30a shown in FIG. 3A and the conductive film 30b shown in FIG. 3B, the mechanical switch is not changed without changing the arrangement of the detection electrodes. 19 can be provided. For this reason, the configuration of the conductive film 30a shown in FIG. 3A and the conductive film 30b shown in FIG. 3B is preferable for the touch panel 50 of the present embodiment in which the mechanical switch 19 is provided.
　本実施形態のタッチパネル５０も、第１の実施形態のタッチパネル１２と同様の効果を得ることができる。
　また、一部の操作には、自動車でのハザードスイッチのような機械的なロック機構が望まれるスイッチ、オーディオのボリュームのようにブラインドで手の感覚で操作するスイッチを設置する場合、全面の操作が静電容量によるタッチパネルには困難である。しかし、タッチパネル５０では、上述のようにメカニカルスイッチも同時に設置することができる。これにより、第１の実施形態のタッチパネル１２よりもさらに設計自由度を高くできる。 The touch panel 50 of this embodiment can also obtain the same effect as the touch panel 12 of the first embodiment.
In addition, for some operations, when a switch that requires a mechanical locking mechanism such as a hazard switch in an automobile is installed, or a switch that operates blindly as a hand like an audio volume, the entire operation is performed. However, it is difficult for a touch panel with electrostatic capacity. However, in the touch panel 50, a mechanical switch can be installed at the same time as described above. Thereby, the design freedom can be further increased as compared with the touch panel 12 of the first embodiment.
　第１の実施形態のタッチパネル１２および第２の実施形態のタッチパネル５０では、配線領域を全体に形成している。このため、静電容量式の場合、検出部２２による静電容量の変化を見るためのスキャンの範囲が広い。そこで、表示部１４および各スイッチ部１８ａ、１８ｂ、１８ｃの位置を特定しておき、表示部１４および各スイッチ部１８ａ、１８ｂ、１８ｃの位置だけをスキャンするようにしてもよい。これにより、スキャンの効率化を図ることができ、特に、タッチパネルが大型化した場合には有効である。また、検出部２２に要求される能力を低くすることもできる。 In the touch panel 12 of the first embodiment and the touch panel 50 of the second embodiment, the wiring area is formed as a whole. For this reason, in the case of the electrostatic capacitance type, the scanning range for viewing the change in the electrostatic capacitance by the detection unit 22 is wide. Therefore, the positions of the display unit 14 and the switch units 18a, 18b, and 18c may be specified, and only the positions of the display unit 14 and the switch units 18a, 18b, and 18c may be scanned. As a result, the scanning efficiency can be improved, and this is particularly effective when the touch panel is enlarged. Moreover, the capability requested | required of the detection part 22 can also be made low.
　第１の実施形態のタッチパネル１２および第２の実施形態のタッチパネル５０では、３次元形状を有するものであり、成型前の状態と成型後とでは、検出電極の交点の位置等がずれることがあり、結果として検出位置がずれるため、成型後に、３次元形状の状態でキャリブレーションをする必要がある。この場合、スタイラスペンを用いたタッチテストにより、キャリブレーションを行う。キャリブレーション方法は、タッチパネルに利用される公知の方法を適宜用いることができる。また、スイッチ部の位置については、タッチテストにより、スイッチ部の位置を制御部２８に記憶させて、設定するティーチングを行う。なお、本発明において、キャリブレーションにはティーチングも含まれる。 The touch panel 12 of the first embodiment and the touch panel 50 of the second embodiment have a three-dimensional shape, and the position of the intersection of the detection electrodes may be shifted between the state before molding and after molding. As a result, since the detection position is shifted, it is necessary to perform calibration in a three-dimensional shape after molding. In this case, calibration is performed by a touch test using a stylus pen. As the calibration method, a known method used for a touch panel can be used as appropriate. As for the position of the switch unit, the position of the switch unit is stored in the control unit 28 by a touch test, and teaching is performed for setting. In the present invention, the calibration includes teaching.
　本発明は、基本的に以上のように構成されるものである。以上、本発明の３次元形状を有するタッチパネル、タッチパネルの駆動方法およびタッチパネルのキャリブレーション方法について詳細に説明したが、本発明は上記実施形態に限定されず、本発明の主旨を逸脱しない範囲において、種々の改良または変更をしてもよいのはもちろんである。 The present invention is basically configured as described above. As described above, the touch panel having the three-dimensional shape of the present invention, the touch panel drive method, and the touch panel calibration method have been described in detail, but the present invention is not limited to the above-described embodiment, and the scope of the present invention is not deviated. Of course, various improvements or modifications may be made.
　１０、１０ａ　操作盤
　１２，５０　タッチパネル
　１４　表示部
　１６　表示部ではない部分（非表示部）
　１８ａ、１８ｂ、１８ｃ　スイッチ部
　１９　メカニカルスイッチ
　２０　表示装置
　２２　検出部
　２４　表示制御部
　２６　音声発生部
　２８　制御部
　３０、３０ａ、３０ｂ　導電性フィルム
　３１　基体
　３２　第１の検出電極
　３４　第２の検出電極
　３５　粘着層
　３６　保護部材
　３８　保護膜
　４０　配線パターン領域
　４２、４４　検出電極
　４３　隙間
　５２　基板 10, 10a Operation panel 12, 50 Touch panel 14 Display unit 16 Non-display unit (non-display unit)
18a, 18b, 18c Switch unit 19 Mechanical switch 20 Display device 22 Detection unit 24 Display control unit 26 Audio generation unit 28 Control unit 30, 30a, 30b Conductive film 31 Base 32 First detection electrode 34 Second detection electrode 35 Adhesive layer 36 Protective member 38 Protective film 40 Wiring pattern area 42, 44 Detection electrode 43 Gap 52 Substrate

Claims (9)

  1. 　対向する複数の検出電極が配置された３次元形状を有するタッチパネルであって、
    　表示装置が配置される表示部と、操作部とを有し、
    　前記表示部と前記操作部の少なくとも一部に前記検出電極が設けられることを特徴とする３次元形状を有するタッチパネル。     A touch panel having a three-dimensional shape in which a plurality of opposing detection electrodes are arranged,
    A display unit on which the display device is disposed, and an operation unit;
    A touch panel having a three-dimensional shape, wherein the detection electrode is provided on at least a part of the display unit and the operation unit.
  2. 　前記検出電極は、少なくとも一部が１～３０μｍ幅の金属細線で構成される請求項１に記載の３次元形状を有するタッチパネル。 The touch panel having a three-dimensional shape according to claim 1, wherein at least a part of the detection electrode is composed of a thin metal wire having a width of 1 to 30 µm.
  3. 　前記表示部と前記操作部とは、前記複数の検出電極のうち、少なくとも１つの検出電極が共通している請求項１または２に記載の３次元形状を有するタッチパネル。 3. The touch panel having a three-dimensional shape according to claim 1, wherein the display unit and the operation unit share at least one detection electrode among the plurality of detection electrodes.
  4. 　前記表示部ではない部分に配置された検出電極は、前記表示部に配置された検出電極に比して太い請求項１～３のいずれか１項に記載の３次元形状を有するタッチパネル。 The touch panel having a three-dimensional shape according to any one of claims 1 to 3, wherein a detection electrode arranged in a portion other than the display unit is thicker than a detection electrode arranged in the display unit.
  5. 　前記表示部ではない部分に配置された検出電極の間隔は、前記表示部に配置された検出電極の間隔に比して広い請求項１～３のいずれか１項に記載の３次元形状を有するタッチパネル。 The three-dimensional shape according to any one of claims 1 to 3, wherein an interval between the detection electrodes arranged in the non-display portion is wider than an interval between the detection electrodes arranged in the display portion. Touch panel.
  6. 　さらにメカニカルなスイッチを有する請求項１～５のいずれか１項に記載の３次元形状を有するタッチパネル。 The touch panel having a three-dimensional shape according to any one of claims 1 to 5, further comprising a mechanical switch.
  7. 　前記表示部ではない部分の少なくとも一部に、意匠が施されている請求項１～６のいずれか１項に記載の３次元形状を有するタッチパネル。 The touch panel having a three-dimensional shape according to any one of claims 1 to 6, wherein a design is applied to at least a part of the part that is not the display part.
  8. 　対向する複数の検出電極が配置された３次元形状を有するタッチパネルの駆動方法であって、
    　前記タッチパネルには、表示装置が配置される表示部と、操作部とが設けられており、
    　前記表示部および前記操作部については、タッチ検出のためのスキャンをし、
    　前記表示部および前記操作部ではない部分については、前記タッチ検出のためのスキャンをしないことを特徴とする３次元形状を有するタッチパネルの駆動方法。     A method for driving a touch panel having a three-dimensional shape in which a plurality of opposing detection electrodes are arranged,
    The touch panel is provided with a display unit on which a display device is arranged and an operation unit.
    The display unit and the operation unit are scanned for touch detection,
    A method of driving a touch panel having a three-dimensional shape, wherein the display unit and the part other than the operation unit are not scanned for the touch detection.
  9. 　対向する複数の検出電極が配置された３次元形状を有するタッチパネルのキャリブレーション方法であって、
    　前記タッチパネルには、表示装置が配置される表示部と、操作部とが設けられており、
    　前記タッチパネルを３次元形状の状態で、タッチテストでキャリブレーションすることを特徴とする３次元形状を有するタッチパネルのキャリブレーション方法。     A touch panel calibration method having a three-dimensional shape in which a plurality of opposing detection electrodes are arranged,
    The touch panel is provided with a display unit on which a display device is arranged and an operation unit.
    A calibration method for a touch panel having a three-dimensional shape, wherein the touch panel is calibrated by a touch test in a three-dimensional shape state.
PCT/JP2015/051222 2014-02-19 2015-01-19 Touch panel having three-dimensional shape, method for driving touch panel, and method for calibrating touch panel WO2015125529A1 (en)

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