JP2012226498A - Touch switch - Google Patents

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JP2012226498A
JP2012226498A JP2011092496A JP2011092496A JP2012226498A JP 2012226498 A JP2012226498 A JP 2012226498A JP 2011092496 A JP2011092496 A JP 2011092496A JP 2011092496 A JP2011092496 A JP 2011092496A JP 2012226498 A JP2012226498 A JP 2012226498A
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electrode
strip
insulating region
touch switch
touch
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JP2011092496A
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Japanese (ja)
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Katsumasa Kono
勝正 鴻野
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Gunze Ltd
グンゼ株式会社
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Abstract

A touch switch capable of highly sensitive sensing is provided.
A capacitive touch switch including a plurality of strip-shaped electrode bodies 6 formed on an insulating layer, wherein the plurality of strip-shaped electrode bodies are arranged between adjacent strip-shaped electrode bodies in plan view. In a state where the first insulating region 7 that electrically insulates between the strip electrode bodies is provided, the strip electrode bodies are disposed along the short direction of each strip electrode body, and each strip electrode body includes a plurality of strip electrode bodies along the longitudinal direction thereof. The touch electrode unit 8 is disposed, and the second insulating region 9 is disposed between the touch electrode units and electrically insulates between the adjacent touch electrode units and has both ends connected to the first insulating region. And on one side across each first insulating region adjacent to each second insulating region on a virtual region that is parallel to the lateral direction of the strip electrode body and passes through each end of each second insulating region. An end of each second insulating region is disposed, and each first insulating region is disposed on the other side. Each touch electrode portions in contact are disposed.
[Selection] Figure 4

Description

  The present invention relates to a touch switch.

  Various configurations of touch switches for detecting an input position have been conventionally studied. For example, a capacitive touch switch disclosed in Patent Literature 1, Patent Literature 2, and the like is known. The capacitive touch switch disclosed in Patent Document 1 is configured with a dielectric layer interposed between a pair of transparent planar bodies each having a transparent conductor having a predetermined pattern shape, When a finger or the like touches the operation surface, the touch position is detected by utilizing a change in capacitance caused by being grounded through the human body.

  Further, in Patent Document 2, as shown in FIG. 12, a transparent conductive film 101 formed on one surface of an insulating substrate 100 and a plurality of touch electrode portions 102 each including the transparent conductive film 101 are included. There is disclosed a capacitive touch switch 110 including a first insulating region 104 in which a lead wiring 103 to be drawn is formed. The transparent conductive film 101 is composed of a plurality of strip electrode bodies 105 each having a plurality of touch electrode portions 102 arranged in a line in a strip shape so as to be parallel to each other. One insulating region 104 is formed in a strip shape. In addition, a second insulating region 106 is formed between the touch electrode portions 102 in each belt-like electrode body 105, and configured to detect whether or not a finger or the like has touched each touch electrode portion 102. In such a touch switch 110, since the number of lead-out wirings 103 increases toward the end of the substrate 100, it is necessary to set the first insulating region 104 to be somewhat large.

  Such a touch switch is installed on a display screen in 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.

JP2003-173238A (FIGS. 1 and 5) JP2009-146419 (FIG. 1)

  However, in the touch switch as shown in FIG. 12, a finger or the like is provided between the first insulating region 104 provided between the strip electrode bodies 105 and the second insulating region formed between the touch electrode portions 102 in each strip electrode body 105. When the position where the touch switch 110 intersects is touched, there is a problem that it is difficult to recognize with high sensitivity that the touch switch 110 has been touched depending on the thickness of the finger and how the finger is placed.

  The present invention has been made to solve such a problem, and an object thereof is to provide a touch switch capable of highly sensitive sensing.

  An object of the present invention is a capacitive touch switch including a plurality of strip electrode bodies formed on an insulating layer, wherein the plurality of strip electrode bodies are arranged between the strip electrode bodies in a plan view. Are disposed along the short direction of each strip electrode body in a state where a first insulating region is provided to electrically insulate between the strip strip electrode bodies adjacent to each other. A plurality of touch electrode portions arranged along the longitudinal direction and the adjacent touch electrode portions arranged between the touch electrode portions are electrically insulated from each other, and both end portions are connected to the first insulating region. A second insulating region, and on a virtual region passing through each end of each second insulating region parallel to the short direction of the strip electrode body and adjacent to each second insulating region Each of the second insulation regions on one side of each first insulation region Of which ends are disposed are achieved by a capacitive touch switch, wherein the each touch electrode portion adjacent to the each first insulating region on the other side is arranged.

  In this touch switch, the first virtual region passing through one end of each of the second insulating regions and the second virtual region passing through the other end are formed so as not to overlap each other. It is preferable.

  The strip electrode body is preferably formed on one surface of the insulating layer.

  The strip electrode bodies are preferably formed so as to be parallel to each other.

  The plurality of touch electrode portions included in the band-shaped electrode body are formed so that the width dimension in the short direction of the band-shaped electrode body is gradually reduced along the longitudinal direction of the band-shaped electrode body. Is preferred.

  In addition, it is preferable that each first insulating region is formed with a lead-out wiring made of a metal wire led out from each touch electrode portion toward an end portion of the insulating layer.

  Further, the touch electrode portion is preferably formed with a metal wire mesh.

  According to the present invention, a touch switch capable of highly sensitive sensing can be provided.

(A) (b) is sectional drawing which shows the schematic structural example of the touch switch 1 which concerns on embodiment of this invention, respectively. It is a top view of the touch switch seen from the arrow A direction of FIG. It is a principal part enlarged plan view of FIG. It is explanatory drawing for demonstrating the positional relationship of the touch electrode part in the touch switch which concerns on one Embodiment of this invention, a 1st insulating region, and a 2nd insulating region. It is explanatory drawing for demonstrating the positional relationship of the touch electrode part in the touch switch which concerns on one Embodiment of this invention, a 1st insulating region, and a 2nd insulating region. (A) is a schematic diagram which shows arrangement | positioning of the touch electrode part in the conventional touch switch, (b) is a schematic diagram which shows arrangement | positioning of the touch electrode part in the touch switch which concerns on this embodiment. It is a principal part enlarged plan view which shows the modification of the touch switch shown in FIG. It is a top view which shows the modification of the touch switch shown in FIG. It is a principal part enlarged plan view which shows the modification of the touch switch shown in FIG. It is a principal part enlarged plan view which shows the modification of the touch switch shown in FIG. It is a top view which shows the modification of the touch switch shown in FIG. It is a top view which shows the conventional touch switch structure.

  Hereinafter, a touch switch according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIGS. 1A and 1B are cross-sectional views each showing a schematic configuration example of a touch switch 1 according to an embodiment of the present invention, and FIG. 2 is a view taken in the direction of FIG. 1A or FIG. It is the top view seen from A direction. FIG. 3 is an enlarged plan view of a main part of FIG. Each drawing is partially enlarged or reduced to facilitate understanding of the configuration, not the actual size ratio.

  The touch switch 1 according to an embodiment of the present invention is, for example, an electrostatic device that is attached to a display device such as a bank terminal (cash dispenser), a ticket machine, a personal computer, an OA device, an electronic notebook, a PDA, or a mobile phone. The touch switch 1 is a capacitive touch switch 1 and includes a transparent substrate 2, a patterned transparent conductive film 3 disposed on one surface of the transparent substrate 2, and the transparent conductive film. And a protective layer 4 covering 3. The protective layer 4 is stuck on the transparent conductive film 3 via the adhesive layer 5. When the touch switch 1 is attached to a display device such as a bank terminal or a ticket vending machine, the touch switch 1 is attached to the display device via a transparent adhesive layer so that the protective layer 4 side becomes an exposed surface (touch surface). A touch switch 1 shown in FIG. 1B includes a transparent substrate 2 and a patterned transparent conductive film 3 disposed on the transparent substrate 2 in the same manner as the touch switch 1 shown in FIG. The transparent conductive film 3 is disposed on the surface of the transparent substrate 2 opposite to that shown in FIG. Moreover, the one surface side of the transparent substrate 2 is adhered to the surface protective layer 4 a via the adhesive layer 5, and the other surface side of the transparent substrate 2 on which the transparent conductive film 3 is formed is interposed via the adhesive layer 5. The electrode pattern protective layer 4b is attached. When the touch switch 1 is attached to the display device, the touch switch 1 is attached to the display device through a transparent adhesive layer so that the protective layer 4a side becomes an exposed surface (touch surface).

  The transparent substrate 2 is a dielectric substrate constituting an insulating layer, and includes polyethylene terephthalate (PET), polyimide (PI), polyethylene naphthalate (PEN), polyethersulfone (PES), polyetheretherketone (PEEK), Flexible made of synthetic resin such as polycarbonate (PC), polypropylene (PP), polyamide (PA), acrylic, amorphous polyolefin resin, cyclic polyolefin resin, aliphatic cyclic polyolefin, norbornene thermoplastic transparent resin It is formed of a 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 substrate 2 is not particularly limited. For example, when the transparent substrate 2 is formed of a synthetic resin flexible film, the thickness is preferably about 10 μm to 2000 μm, and preferably about 50 μm to 500 μm. Is more preferable. Moreover, when comprising the transparent substrate 2 with a glass plate, it is preferable to set it as about 0.1 mm-5 mm.

  Moreover, when forming the transparent substrate 2 from the material which has flexibility, in order to provide rigidity to the said transparent substrate 2, you may stick a support body. Examples of the support include a glass plate and a resin material having a hardness equivalent to glass, and the thickness is preferably 100 μm or more, and more preferably 0.2 mm to 10 mm. In addition, the surface of the transparent substrate 2 is subjected to plasma treatment for improving wettability, a hard coat layer for protecting the surface, an undercoat layer for improving adhesion of the transparent conductive film 3 and optical characteristics. Necessary functional films may be added, such as providing them.

  The patterned transparent conductive film 3 disposed on one main surface of the transparent substrate 2 is formed to extend in parallel with each other at a predetermined interval, as shown in FIGS. It is formed as an aggregate of six. The plurality of band-shaped electrode bodies 6 are arranged in a state in which each band-shaped electrode body is provided with a first insulating region 7 disposed between the band-shaped electrode bodies 6 and electrically insulating the adjacent band-shaped electrode bodies in plan view. 6 are arranged along the short direction. The first insulating region 7 is a region formed between adjacent strip electrode bodies 6, and each first insulating region 7 is formed to extend in parallel to each other. In the first insulating region 7, lead-out wirings 10 that are led out from a plurality of touch electrode portions 8 described later toward the end of the transparent substrate 2 are formed. The width dimension of the first insulating region 7 (distance between adjacent strip electrodes) is determined by the width and number of lead wires, but for stable detection, it is set to a dimension equal to or smaller than the thickness of a human finger. Preferably, for example, it may be set to about 1 mm to 10 mm.

  Each strip-shaped electrode body 6 includes a plurality of touch electrode portions 8 disposed along the longitudinal direction thereof, and a second insulating region 9 disposed between the touch electrode portions 8. Each touch electrode portion 8 is configured to have a parallelogram shape having opposing sides extending in a direction along the longitudinal direction of the strip-shaped electrode body 6, and the opposing sides of the touch electrode portion 8 are formed in the first insulating region 7. And constitutes the boundary line. The second insulating region 9 is a region that is formed between the touch electrode portions 8 as described above and electrically insulates between the adjacent touch electrode portions. It connects to the 1st insulation area | region 7 arrange | positioned at both sides of this. The second insulating region 9 is configured such that the dimension between the touch electrodes is 0.05 mm to 1 mm, preferably 0.1 mm to 0.3 mm. Further, as shown in FIG. 3, each of the second insulating regions 9 a formed on the strip electrode body 6 disposed on one side across the first insulating region 7 and the strip electrode body 6 disposed on the other side. The separation distance from the second insulating region 9b that is formed and arranged closest to the second insulating region 9a can be variously changed depending on the size of the touch electrode portion 8. For example, the first insulating region 7 In the vertical direction (the direction along the longitudinal direction of the strip-shaped electrode body 6) between the end of the second insulating region 9a disposed on one side and the end of the second insulating region 9b disposed on the other side The separation distance D is preferably configured to be about half or more of the width dimension of a human fingertip, that is, about 3 mm or more. The maximum value of the separation distance D is preferably set to about ½ of the length of the side of the touch electrode portion 8 and extending along the longitudinal direction of the strip electrode body 6.

  Further, in the touch switch 1 according to the present invention, as shown in the explanatory diagram of FIG. 4, a virtual region L that is parallel to the short direction of the strip electrode body 6 and passes through each end of each second insulating region 9 is provided. Assuming that, on the virtual region L, the end of each second insulating region 9 is arranged on one side across each first insulating region 7 adjacent to each second insulating region 9, and the other side Further, each touch electrode portion 8 adjacent to each first insulating region 7 is arranged. Here, the virtual region L is a virtual linear region, and is arranged in the vertical direction (longitudinal direction of the strip-shaped electrode body 6) across each end portion of each second insulating region 9. It refers to a region where the corner portion of the touch electrode portion is disposed on the side edge (on the side edge extending along the short side direction of the belt-like electrode body 6). In particular, in the present embodiment, since the touch electrode portion 8 is configured to have a parallelogram shape, the first virtual region that passes through one end portion of each second insulating region 9 as shown in FIG. L1 and the second virtual region L2 passing through the other end are formed so as not to overlap each other.

  Examples of the material of the transparent conductive film 3 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-oxide. Transparent conductive materials such as tin, 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 Physical materials can be exemplified, and two or more of these materials may be combined to form. In addition, a simple metal weak against acid or alkali can be used as a conductive material.

  In addition, 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 a fine conductive fiber made of a silver material is dispersed in a polymer material functioning as a binder is used for the transparent conductive film 3. It can also be used as a material. 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.

  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 film 3, the carbon nanotubes generally have a diameter of 0.8 nm to 1.4 nm (around 1 nm). ), The carbon nanotubes are less likely to obstruct light transmission by being dispersed in the non-conductive polymer material one by one or one bundle, which is preferable for ensuring the transparency of the transparent conductive film 3.

  Examples of the method for forming the transparent conductive film 3 include PVD methods such as sputtering, vacuum deposition, and ion plating, CVD, coating, and printing. Moreover, the thickness of the transparent conductive film 3 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 patterning of the transparent conductive film 3 is performed by forming a mask portion having a desired pattern shape on the surface of the transparent conductive film 3 formed on the transparent substrate 2 and removing the exposed portion by etching with an acid solution or the like. For example, the mask portion can be dissolved.

  The method of forming the lead-out wiring 10 includes: (A) a method of screen-printing a conductive paste containing extremely fine conductive particles on the transparent substrate 2 (see Japanese Patent Application Laid-Open No. 2007-142334, etc.), and (B) a metal foil such as copper. Can be laminated on the transparent substrate 2, a resist pattern is formed on the metal foil, and the metal foil is etched (see, for example, JP-A-2008-32884). Further, the lead-out wiring 10 may be formed of the same material (indium tin oxide (ITO), conductive polymer, etc.) as the transparent conductive film 3 described above. When forming the lead-out wiring 10 with the same material as the transparent conductive film 3, the same method as the patterning method of the transparent conductive film 3, the forming method (B), a method of removing the unnecessary transparent conductive film 3 by laser irradiation, etc. Can be adopted.

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. In addition, indium tin oxide (ITO), conductive oxide in which zinc oxide is mixed with indium oxide (IZO [indium
zinc oxide]), or fine particles mainly composed of conductive oxide (ITSO) in which silicon oxide is mixed with indium oxide.

  Further, the formation method of the lead-out wiring 10 is not limited to the formation method of the above (A) and (B), and a printing method such as gravure printing other than the above (A) or a photolithography other than the above (B). May be used.

  The protective layer 4 protects the transparent conductive film 3 disposed on one side of the transparent substrate 2, and includes polyethylene terephthalate (PET), polyimide (PI), polyethylene naphthalate (PEN), polyethersulfone ( Transparent film bodies made of PES), polyetheretherketone (PEEK), polycarbonate (PC), polypropylene (PP), polyamide (PA), acrylic, etc., soda glass, alkali-free glass, borosilicate glass, quartz glass It is composed of a glass plate. Note that the protective layer 4 may be formed by laminating a transparent resin on the transparent conductive film 3 instead of the film body or the glass plate. The thickness of the protective layer 4 is not particularly limited, but is preferably about 0.1 mm to 10 mm.

  The adhesive layer 5 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 5 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 5 is not particularly specified, but is preferably 200 μm or less for practical use.

  In the touch switch 1 having the above configuration, the method for detecting the touch position is the same as that of the conventional capacitive touch switch. When the surface of the touch switch 1 is touched with a finger or the like, the touch electrode unit 8 A change in capacitance occurs. It is determined whether or not a finger or the like has touched the touch electrode portion 8 by detecting the change in the capacitance with a detection circuit connected via the lead wiring 10.

  As described above, the touch switch 1 according to the present embodiment is parallel to the short-side direction (adjacent direction) of the strip-shaped electrode body 6 and on the virtual region L passing through each end of each second insulating region 9. An end of each second insulating region 9 is arranged on one side of each first insulating region 7 adjacent to each second insulating region 9, and each touch adjacent to each first insulating region 7 on the other side. Since the electrode unit 8 is arranged, sensing can be performed with high accuracy. This will be specifically described with reference to FIG. 6A is a schematic diagram showing the arrangement of the touch electrode unit 102 in the conventional touch switch 110, and FIG. 6B is the arrangement of the touch electrode unit 8 in the touch switch 1 according to the present embodiment. It is a schematic diagram which shows.

  First, in the conventional configuration, since the first insulating region 104 and the two second insulating regions 106 arranged on both sides of the first insulating region 104 intersect in a cross shape, this intersection position (FIG. In the case where the position indicated by ◯ in (a) is touched with a finger, the change in electrostatic capacitance due to grounding via the human body is distributed to the four touch electrode portions 102 near the intersection position. . As a result, the change in capacitance detected in each touch electrode unit 102 becomes small, and it is difficult to perform touch detection with high sensitivity.

  On the other hand, according to the touch panel according to the present invention shown in FIG. 6B, there is no region where the first insulating region 7 and the second insulating region 9 intersect in a cross shape. The problem that occurs in the switch 1 does not occur, and the touch position can be sensed with high sensitivity. That is, even when the position indicated by ◯ in FIG. 6B (the position where the first insulating region 7 and one second insulating region 9 intersect) is touched with a finger, the touch electrode portion 8 indicated by No1. It is possible to ensure a large contact area between the region corresponding to the finger and the finger, so that the touch electrode portion 8 indicated by No1 can reliably detect the change in the capacitance, and the first insulating region 7 Whichever position is touched, the touch switch 1 can detect the touch position with high sensitivity.

  In the present embodiment, the first virtual region L1 that passes through one end of each second insulating region 9 and the second virtual region L2 that passes through the other end are formed so as not to overlap each other. Has been. According to such a configuration, the touch electrode portions 8 are arranged so that the center positions of the touch electrode portions 8 aligned in the adjacent direction of the strip electrode body 6 (the short direction of the strip electrode body 6) are aligned. Therefore, it is possible to improve convenience when the touch switch 1 is used as an operation means of various devices such as a game machine and a ticket machine.

  As mentioned above, although one Embodiment of the touch switch 1 which concerns on this invention was described, a specific structure is not limited to the said embodiment. For example, in the above-described embodiment, each touch electrode portion 8 included in the touch switch 1 may be configured to have a mesh shape with a metal wire. As a specific example of the mesh shape, as shown in FIG. 7, a shape in which metal wires are arranged in a lattice shape can be exemplified. As the grid shape, metal lines may be arranged so as to be parallel to each side of the transparent substrate 2 (FIG. 7A), and for each side of the transparent substrate 2. A metal wire may be arranged so as to be inclined at a predetermined angle to form a lattice shape (FIG. 7B). 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. Moreover, it is preferable to make the space | interval of adjacent metal wires into the range of 100 micrometers-1000 micrometers. The method for forming the metal line constituting the touch electrode portion 8 is the same as the method for forming the lead wiring 10 described above. (A) A conductive paste containing extremely fine conductive particles is screen-printed on the transparent substrate 2. (B) A method in which a metal foil such as copper is laminated on the transparent substrate 2, a resist pattern is formed on the metal foil, and the metal foil is etched.

  Moreover, in the said embodiment, although the touch switch 1 is comprised by forming the some strip | belt-shaped electrode body 6 in the one surface side of the transparent substrate 2, in the planar view of the touch switch 1, a some strip | belt-shaped electrode body. 6 should just be arrange | positioned along the transversal direction of each strip | belt-shaped electrode body 6 in the state which provided the 1st insulation area | region 7 arrange | positioned between each strip | belt-shaped electrode body 6. FIG. Therefore, when viewed from one side of the touch switch 1, it is possible to employ a configuration in which a plurality of strip-like electrode bodies 6 are provided in an arrangement as shown in FIG. In the figure, the strip-shaped electrode body 6 indicated by odd numbers may be formed on one side of the transparent substrate 2, and the strip-shaped electrode body 6 indicated by even numbers may be formed on the other side of the transparent substrate 2.

  Moreover, in the said embodiment, although it has comprised so that the shape of all the touch electrode parts 8 may become a parallelogram shape, it is not specifically limited to such a structure, For example, as shown in FIG. You may form so that the shape of the touch electrode part 8 arrange | positioned at the upper side part side and lower side part side of the switch 1 may become a trapezoid shape.

  Moreover, in the said embodiment, since each touch electrode part 8 is comprised so that it may become a parallelogram shape, as shown in FIG. 5, the 1st which passes through one edge part of each 2nd insulation area | region 9 is shown. The virtual region L1 and the second virtual region L2 passing through the other end are formed so as not to overlap each other, but are not particularly limited to such a configuration, for example, as shown in FIG. Each touch electrode portion 8 is configured to have a rectangular shape, and a first virtual region L1 that passes through one end of each second insulating region 9 and a second virtual region L2 that passes through the other end are provided. You may comprise so that it may overlap. Furthermore, as shown in FIG. 10, the plurality of touch electrode portions 8 included in each band-shaped electrode body 6 are short in the band-shaped electrode body 6 along the longitudinal direction (vertical direction in FIG. 10) of the band-shaped electrode body 6. You may form so that the width dimension in a direction (left-right direction in FIG. 10) may become short in steps.

  Moreover, in the said embodiment, it is comprised so that the 1st virtual area | region L1 which passes through one edge part of each 2nd insulation area | region 9 and the 2nd virtual area | region L2 which passes the other edge part may not overlap. The touch electrode portion 8 is exemplified by the parallelogram-shaped touch electrode portion 8 having opposing sides extending in the direction along the longitudinal direction of the strip-shaped electrode body 6, but is not particularly limited to such a shape. For example, FIG. The touch electrode unit 8 may be configured to have a shape as shown. In FIG. 11, the second insulating region 9 formed between the touch electrode portions 8 includes horizontal straight portions 91 and 91 that are parallel to each other, and vertical straight portions 92 that are perpendicular to the horizontal straight portions 91 and 91. The one end portion of one horizontal straight line portion 91 and the one end portion of the other horizontal straight line portion 91 are configured to be connected to the vertical straight line portion 92 so as to partition the touch electrode portions 8 arranged vertically. Has been.

DESCRIPTION OF SYMBOLS 1 Touch switch 2 Transparent substrate 3 Transparent conductive film 4 Protective layer 5 Adhesive layer 6 Strip electrode body 7 1st insulation area 8 Touch electrode part 9 2nd insulation area 10 Lead-out wiring

Claims (7)

  1. A capacitive touch switch comprising a plurality of strip-shaped electrode bodies formed on an insulating layer,
    Each of the plurality of strip electrode bodies is provided with a first insulating region that is disposed between the strip electrode bodies and electrically insulates adjacent strip electrode bodies in a plan view. Is arranged along the short direction of
    Each strip-shaped electrode body is electrically insulated between touch electrode portions arranged in plural along the longitudinal direction, and adjacent touch electrode portions arranged between the touch electrode portions, and both end portions are A second insulating region connected to the first insulating region,
    One side sandwiching each first insulating region adjacent to each second insulating region on a virtual region that is parallel to the lateral direction of the strip-shaped electrode body and passes through each end of each second insulating region An end of each of the second insulating regions is arranged on the other side, and each touch electrode portion adjacent to each of the first insulating regions is arranged on the other side.
  2.   The first virtual region passing through one end of each of the second insulating regions and the second virtual region passing through the other end are formed so as not to overlap each other. 1. The capacitive touch switch according to 1.
  3.   The capacitive touch switch according to claim 1, wherein the strip electrode body is formed on one surface of the insulating layer.
  4.   The capacitive touch switch according to any one of claims 1 to 3, wherein each of the strip electrode bodies is formed to be parallel to each other.
  5.   The plurality of touch electrode portions included in the band-shaped electrode body are formed such that a width dimension in a short direction of the band-shaped electrode body is gradually reduced along a longitudinal direction of the band-shaped electrode body. To 4. The electrostatic capacitance type touch switch according to any one of 1 to 4.
  6.   6. The electrostatic according to claim 1, wherein each first insulating region is formed with a lead-out wiring made of a metal wire led out from each touch electrode portion toward an end of the insulating layer. Capacitive touch switch.
  7. The touch switch device according to claim 1, wherein the touch electrode portion is formed by forming a metal wire in a mesh shape.

JP2011092496A 2011-04-18 2011-04-18 Touch switch Pending JP2012226498A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014206885A (en) * 2013-04-15 2014-10-30 株式会社片岡製作所 Method for manufacturing member
CN105301822A (en) * 2015-12-11 2016-02-03 上海中航光电子有限公司 Array substrate, display panel and display device
JP2016503548A (en) * 2012-11-27 2016-02-04 ガーディアン インダストリーズ コーポレイションGuardian Industries Corp. Projected capacitive touch panel including a silver-containing transparent conductive layer

Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2007533044A (en) * 2004-05-06 2007-11-15 アプル・コンピュータ・インコーポレーテッド Multipoint touch screen

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2007533044A (en) * 2004-05-06 2007-11-15 アプル・コンピュータ・インコーポレーテッド Multipoint touch screen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016503548A (en) * 2012-11-27 2016-02-04 ガーディアン インダストリーズ コーポレイションGuardian Industries Corp. Projected capacitive touch panel including a silver-containing transparent conductive layer
US10088967B2 (en) 2012-11-27 2018-10-02 Guardian Glass, LLC Projected capacitive touch panel with a silver-inclusive transparent conducting layer(s)
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