JP2010262529A - Planar element and touch switch - Google Patents

Planar element and touch switch Download PDF

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JP2010262529A
JP2010262529A JP2009113755A JP2009113755A JP2010262529A JP 2010262529 A JP2010262529 A JP 2010262529A JP 2009113755 A JP2009113755 A JP 2009113755A JP 2009113755 A JP2009113755 A JP 2009113755A JP 2010262529 A JP2010262529 A JP 2010262529A
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planar body
mesh
touch switch
conductive
region
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JP5253288B2 (en
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Katsumasa Kono
勝正 鴻野
Hidenori Mizumoto
英詔 水元
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Gunze Ltd
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Gunze Ltd
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Priority to JP2009113755A priority Critical patent/JP5253288B2/en
Application filed by Gunze Ltd filed Critical Gunze Ltd
Priority to EP09802922A priority patent/EP2330488A4/en
Priority to CN201410841804.4A priority patent/CN104635983B/en
Priority to EP12004387A priority patent/EP2511806A3/en
Priority to US13/000,634 priority patent/US8717332B2/en
Priority to KR1020117004585A priority patent/KR101329638B1/en
Priority to PCT/JP2009/063355 priority patent/WO2010013679A1/en
Priority to CN200980130592.6A priority patent/CN102112949B/en
Priority to TW098125703A priority patent/TWI444862B/en
Publication of JP2010262529A publication Critical patent/JP2010262529A/en
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    • 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
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display

Abstract

<P>PROBLEM TO BE SOLVED: To provide a planar element capable of improving visibility and being efficiently manufactured, and to provide a touch switch. <P>SOLUTION: The planar element 1 includes a net-like electrode 12 formed by a plurality of conductive lines L like a net on one surface of a substrate. The net-like electrode 12 is divided into a plurality of conductive section areas 12a arranged with intervals and non-conductive section areas 12b arranged between respective conductive section areas 12a. Each non-conductive section area 12b has a plurality of cut sections 4 for cutting conductor lines L and the non-conductive section area 12b insulates between the adjacent conductive section areas by the cut sections 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、面状体及びタッチスイッチに関する。   The present invention relates to a planar body and a touch switch.

近年、コンピューターや電子機器において、押しボタンを用いずにディスプレイの表示を利用した操作の開発が盛んである。その操作のために、ディスプレイの前面にタッチスイッチを配置して、タッチ位置を検出する。タッチスイッチの種類としては、抵抗膜式、表面弾性波式、赤外線方式などがあり、指のタッチや近接による静電容量の変化で位置を検出する静電容量式もある。例えば、特許文献１には、図１０及び図１１に示すようなマトリクス状の電極（Ｘ方向、Ｙ方向の２層構造）の静電容量式タッチスイッチが記載されている。   2. Description of the Related Art In recent years, in computers and electronic devices, development of operations using display on a display without using push buttons has been active. For this operation, a touch switch is arranged on the front surface of the display to detect the touch position. As the types of touch switches, there are a resistance film type, a surface acoustic wave type, an infrared type, and the like, and there is also a capacitance type that detects a position by a change in capacitance due to finger touch or proximity. For example, Patent Document 1 describes a capacitive touch switch having matrix-like electrodes (two-layer structure in the X direction and Y direction) as shown in FIGS. 10 and 11.

このような静電容量式タッチスイッチの構造を模式的に表した概略構成平面図である図１２及びその断面図である図１３を用いて説明すると、従来の静電容量式タッチスイッチ１００は、基板１０１の一方面に帯状にパターニングされたＩＴＯなどからなる透明の第１電極１０２が形成された第１面状体１０３と、基板１０４の一方面に帯状にパターニングされたＩＴＯなどからなる透明の第２電極１０５が形成された第２面状体１０６とを備えており、第１面状体１０３と第２面状体１０６とは、それぞれの第１電極及び第２電極とが互いに対向するようにして、粘着層１０７を介して貼着されている。   Referring to FIG. 12 which is a schematic configuration plan view schematically showing the structure of such a capacitive touch switch and FIG. 13 which is a cross-sectional view thereof, a conventional capacitive touch switch 100 includes: A first planar body 103 in which a transparent first electrode 102 made of ITO or the like patterned in a strip shape is formed on one surface of the substrate 101, and a transparent material made of ITO or the like patterned in a strip shape on one surface of the substrate 104. And a second planar body 106 on which the second electrode 105 is formed. The first planar body 103 and the second planar body 106 are opposed to each other with the first electrode and the second electrode. In this way, the adhesive layer 107 is attached.

面状体の任意の位置に指などで触れると、電極１０２及び１０５は接触位置において人体の静電容量に基づく電圧等の変化を検出することによって、接触位置の座標が演算される。   When an arbitrary position on the planar body is touched with a finger or the like, the electrodes 102 and 105 detect a change in voltage or the like based on the capacitance of the human body at the contact position, whereby the coordinates of the contact position are calculated.

しかしながらＩＴＯの抵抗率は高く、２００Ω/□〜１０００Ω/□が一般的である。このため、タッチスイッチのサイズが大型化するとともに、電極の端子間抵抗値が増加し、これに伴い静電容量検出の感度が低下し、タッチスイッチとして動作させることが困難になる。   However, the resistivity of ITO is high, and is generally 200Ω / □ to 1000Ω / □. For this reason, the size of the touch switch is increased, the inter-terminal resistance value of the electrode is increased, and accordingly, the sensitivity of capacitance detection is lowered, and it becomes difficult to operate as a touch switch.

また、特許文献２にはＩＴＯを使用しない静電容量式のタッチスイッチが開示されている。銅または銅合金からなる電極を網目状に形成することにより、電極の透過率を７０％以上にしており、視認性を維持したまた低抵抗の電極を形成している。   Patent Document 2 discloses a capacitive touch switch that does not use ITO. By forming an electrode made of copper or a copper alloy in a mesh shape, the transmittance of the electrode is set to 70% or more, and a low-resistance electrode that maintains visibility is formed.

しかしながら、特許文献２の電極は基板の１面のみであり、特許文献１に記載されているような、第１電極及び第２電極の２層の電極で形成した場合、第１面状体及び第２面状体を重ね合わせた際に、網目密度のバラツキ（網目の偏り）が生じ、視認性が低下する。   However, the electrode of Patent Document 2 is only one surface of the substrate, and when it is formed of two layers of electrodes, the first electrode and the second electrode, as described in Patent Document 1, the first planar body and When the second planar bodies are overlaid, the mesh density varies (lattice deviation), and the visibility decreases.

特表２００６−５１１８７９号公報JP-T-2006-511879 特開２００６−３４４１６３号公報JP 2006-344163 A

本発明の目的は、ＩＴＯを使用しない２層の電極を貼り合せたタッチパネルにおいて、視認性が低下しないタッチパネル及びこのようなタッチパネルを構成する面状体を提供することである。   An object of the present invention is to provide a touch panel in which visibility is not lowered in a touch panel in which two layers of electrodes not using ITO are bonded, and a planar body constituting such a touch panel.

本発明の上記目的は、複数の導体線によって網目状に形成される網目状電極を基板の一方面に備える面状体であって、前記網目状電極は、間隔をあけて配置される複数の導電部領域と、前記各導電部領域の間に配置される非導電部領域とに区画されており、前記非導電部領域は、前記導体線を切断する複数の切断部を備えており、前記切断部によって前記非導電部領域は、隣接する前記導電部領域間を絶縁する面状体により達成できる。   The above object of the present invention is a planar body provided on one surface of a substrate with a mesh electrode formed in a mesh shape by a plurality of conductor wires, and the mesh electrode is a plurality of electrodes arranged at intervals. The conductive part region is partitioned into a conductive part region and a non-conductive part region disposed between the conductive part regions, and the non-conductive part region includes a plurality of cutting parts for cutting the conductor wire, The non-conductive portion region can be achieved by a planar body that insulates between the adjacent conductive portion regions by the cut portion.

この面状体において、前記切断部は、前記網目状電極の交差部に形成されていることが好ましい。   In this planar body, it is preferable that the cutting portion is formed at an intersection of the mesh electrode.

また、前記網目状電極の網目ピッチは、１００μｍ〜１０００μｍであることが好ましい。   The mesh pitch of the mesh electrode is preferably 100 μm to 1000 μm.

また、前記導電部領域は、両端部間の導通性を阻害しない範囲で前記導体線を切断する複数の切断部を備えることが好ましい。   Moreover, it is preferable that the said electroconductive part area | region is provided with the some cutting part which cut | disconnects the said conductor wire in the range which does not inhibit the electrical conductivity between both ends.

また、本発明の上記目的は、前記面状体を複数備え、各面状体は、粘着層を介して貼着される静電容量式のタッチスイッチにより達成される。   Moreover, the said objective of this invention is provided with the said planar body in multiple numbers, and each planar body is achieved by the electrostatic capacitance type touch switch stuck through an adhesion layer.

また、このタッチスイッチにおいて、一方の面状体における前記導電部領域と、他方の面状体における前記導電部領域とが、互いに直交するように配置されていることが好ましい。   In the touch switch, it is preferable that the conductive part region in one planar body and the conductive part region in the other planar body are arranged so as to be orthogonal to each other.

本発明によれば、視認性を向上させることができると共に、効率よく製造することができる面状体及びタッチスイッチを提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, while being able to improve visibility, the planar body and touch switch which can be manufactured efficiently can be provided.

本発明の一実施形態に係るタッチスイッチの概略構成要部断面図である。1 is a cross-sectional view of a schematic configuration of a touch switch according to an embodiment of the present invention. 図１に示すタッチスイッチが有する第１面状体の平面図である。It is a top view of the 1st planar body which the touch switch shown in FIG. 1 has. 図１に示すタッチスイッチが有する第２面状体の平面図である。It is a top view of the 2nd planar body which the touch switch shown in FIG. 1 has. （ａ）は図２の要部拡大図であり、（ｂ）は要部拡大図である。(A) is a principal part enlarged view of FIG. 2, (b) is a principal part enlarged view. 図２に示す第１面状体の網目状電極における導電部領域及び非導電部領域との境界を示す構成図である。It is a block diagram which shows the boundary with the electroconductive part area | region and non-conductive part area | region in the mesh electrode of the 1st planar body shown in FIG. 図３に示す第２面状体の網目状電極における導電部領域及び非導電部領域との境界を示す構成図である。It is a block diagram which shows the boundary with the electroconductive part area | region and non-conductive part area | region in the mesh electrode of the 2nd planar body shown in FIG. 本発明の一実施形態に係るタッチスイッチの平面図である。It is a top view of the touch switch which concerns on one Embodiment of this invention. 第１面状体と第２面状体とを貼着した状体を示す平面図である。It is a top view which shows the state which stuck the 1st sheet and the 2nd sheet. 本発明に係る面状体の変形例を示す平面図である。It is a top view which shows the modification of the planar body which concerns on this invention. 従来のマトリクス状電極を有する静電容量式タッチスイッチの平面図である。It is a top view of the electrostatic capacitance type touch switch which has the conventional matrix electrode. 従来のマトリクス状電極を有する静電容量式タッチスイッチの平面図である。It is a top view of the electrostatic capacitance type touch switch which has the conventional matrix electrode. 従来の静電容量式タッチスイッチを模式的に表す概略構成平面図である。It is a schematic plan view schematically showing a conventional capacitive touch switch. 図１２の断面図である。It is sectional drawing of FIG.

以下、本発明の実態形態について添付図面を参照して説明する。尚、各図面は、構成の理解を容易にするため、実寸比ではなく部分的に拡大又は縮小されている。   Hereinafter, actual forms of the present invention will be described with reference to the accompanying drawings. Each drawing is partially enlarged or reduced to facilitate understanding of the configuration, not the actual size ratio.

図１は、本発明の一実施形態に係るタッチスイッチの概略構成要部拡大断面図である。このタッチスイッチ５は、静電容量式のタッチスイッチであり、図２及び図３に示すように、基板１１の一方面に網目状電極１２が形成された第１面状体１と、基板２１の一方面に網目状電極２２が形成された第２面状体２とを備えている。なお、図２は、第１面状体１の平面図であり、図３は、第２面状体２の平面図である。第１面状体１と第２面状体２とは、それぞれの網目状電極１２，２２が互いに対向するようにして、粘着層３を介して貼着されて一体化されている。なお、第１面状体１及び第２面状体２とは、後述する第１面状体１の導電部領域１２ａと、第２面状体２の導電部領域２２ａとが互いに直交するように貼着されている。   FIG. 1 is an enlarged cross-sectional view of a schematic configuration main part of a touch switch according to an embodiment of the present invention. The touch switch 5 is a capacitive touch switch, and as shown in FIGS. 2 and 3, a first planar body 1 in which a mesh electrode 12 is formed on one surface of a substrate 11, and a substrate 21. And a second planar body 2 having a mesh electrode 22 formed on one surface thereof. 2 is a plan view of the first planar body 1, and FIG. 3 is a plan view of the second planar body 2. The first planar body 1 and the second planar body 2 are bonded and integrated through the adhesive layer 3 so that the mesh electrodes 12 and 22 face each other. In addition, the 1st planar body 1 and the 2nd planar body 2 are so that the electroconductive part area | region 12a of the 1st planar body 1 mentioned later and the electroconductive part area | region 22a of the 2nd planar body 2 may mutually orthogonally cross. It is affixed to.

基板１１、２１は誘電体基板である。基板１１、２１の材料は、ガラス、ポリエステル、ポリエチレンテレフタレート、ポリカーボネート、ポリメチルメタクリレート、ポリエチレンナフタレートなどの透明材料が挙げられる。ガラスであれば、厚みは約０．１〜３ｍｍが好ましく、プラスチックフィルムであれば厚みは約１０〜２０００μｍが好ましい。また、これらの材料を多層に積層してもよい。   The substrates 11 and 21 are dielectric substrates. Examples of the material of the substrates 11 and 21 include transparent materials such as glass, polyester, polyethylene terephthalate, polycarbonate, polymethyl methacrylate, and polyethylene naphthalate. If it is glass, the thickness is preferably about 0.1 to 3 mm, and if it is a plastic film, the thickness is preferably about 10 to 2000 μm. Further, these materials may be laminated in multiple layers.

図２、図３及びこれらの要部拡大図である図４（ａ）（ｂ）に示すように、第１面状体１及び第２面状体２の一方面にそれぞれ形成される網目状電極１２，２２は、複数の導体線Ｌによって網目状に形成される電極である。   As shown in FIGS. 2 and 3 and FIGS. 4 (a) and 4 (b), which are enlarged views of main parts thereof, a mesh shape formed on one surface of the first planar body 1 and the second planar body 2, respectively. The electrodes 12 and 22 are electrodes formed in a mesh shape by a plurality of conductor lines L.

また、各網目状電極１２，２２は、所定間隔をあけて略並行に配置される複数の導電部領域１２ａ，２２ａと、各導電部領域の間に配置される非導電部領域１２ｂ，２２ｂとに区画されている。図５は、図２の導電部領域１２ａ及び非導電部領域１２ｂとの境界を示す構成図であり、図６は、図３の導電部領域２２ａ及び非導電部領域２２ｂとの境界を示す構成図である。両図共に、グレーに着色されている部分が導電部領域１２ａ，２２ａを表している。導電部領域１２ａ，２２ａは、導電性インクなどから成る引き廻し回路（図示せず）を介して外部の駆動回路（図示せず）に接続される。   Each mesh electrode 12, 22 includes a plurality of conductive part regions 12a, 22a arranged substantially in parallel with a predetermined interval, and non-conductive part regions 12b, 22b arranged between the conductive part regions. It is divided into. 5 is a configuration diagram showing a boundary between the conductive portion region 12a and the non-conductive portion region 12b of FIG. 2, and FIG. 6 is a configuration showing a boundary between the conductive portion region 22a and the non-conductive portion region 22b of FIG. FIG. In both figures, the portions colored in gray represent the conductive portion regions 12a and 22a. The conductive portion regions 12a and 22a are connected to an external drive circuit (not shown) through a routing circuit (not shown) made of conductive ink or the like.

また、非導電部領域１２ｂ（２２ｂ）は、導体線Ｌを島状に切断する複数の切断部４を備えており、当該切断部４によって非導電部領域１２ｂ（２２ｂ）が、隣接する導電部領域間を絶縁できるように構成されている。本実施形態においては、切断部４は、網目状電極１２，２２を形成する複数の導体線Ｌの交差部に形成されている。切断部４の切断幅は、例えば、導体線Ｌの線幅と同程度か、あるいは、導体線Ｌの線幅の数倍程度である。   Further, the non-conductive portion region 12b (22b) includes a plurality of cut portions 4 that cut the conductor wire L into an island shape, and the non-conductive portion region 12b (22b) is adjacent to the conductive portion by the cut portion 4. It is configured to be able to insulate between regions. In the present embodiment, the cutting portion 4 is formed at the intersection of the plurality of conductor lines L forming the mesh electrodes 12 and 22. The cutting width of the cutting part 4 is, for example, about the same as the line width of the conductor line L, or about several times the line width of the conductor line L.

このように非導電部領域１２ｂ，２２ｂが導体線Ｌを切断する切断部４を備えているため、網目状電極１２，２２の非導電部領域１２ｂ，２２ｂにおける絶縁性を確保することができる。これにより、第１面状体１及び第２面状体２を重ね合わせてタッチスイッチ５を構成した場合、第１面状体１又は第２面状体２のいずれか一方における網目状電極１２（２２）の非導電部領域１２ｂ（２２ｂ）が、他方の面状体の網目状電極２２（１２）のセンシングに悪影響を及ぼすことが無く、安定した静電容量検出が可能になる。   As described above, since the non-conductive portion regions 12b and 22b are provided with the cutting portions 4 for cutting the conductor lines L, it is possible to ensure insulation in the non-conductive portion regions 12b and 22b of the mesh electrodes 12 and 22. Thereby, when the touch switch 5 is configured by superimposing the first planar body 1 and the second planar body 2, the mesh electrode 12 on either the first planar body 1 or the second planar body 2. The non-conductive portion region 12b (22b) of (22) does not adversely affect the sensing of the mesh electrode 22 (12) of the other planar body, and stable capacitance detection is possible.

導体線Ｌの線幅は、例えば、１０〜３０μｍとなるように形成されている。また、各導体線Ｌのピッチは、１００〜１０００μｍとなるように形成されている。導体線Ｌの厚みは、通常１〜３０μｍ程度である。網目状電極１２，２２のパターン形状を目立ちにくくして視認性を向上させる観点からは、導体線Ｌの厚みはできる限り小さいことが好ましいが、薄くなりすぎると網目状電極１２，２２の必要な耐久性・耐候性を得ることが困難になることから、好ましくは１０〜３０μｍ程度である。このような寸法を有する網目状電極１２，２２は、各導体線Ｌの線幅が非常に細く、線幅に対するピッチが十分に大きいため目立ちにくい。   The line width of the conductor line L is formed to be, for example, 10 to 30 μm. Moreover, the pitch of each conductor line L is formed so that it may become 100-1000 micrometers. The thickness of the conductor wire L is usually about 1 to 30 μm. From the viewpoint of improving the visibility by making the pattern shape of the mesh electrodes 12 and 22 inconspicuous, the thickness of the conductor wire L is preferably as small as possible, but if it is too thin, the mesh electrodes 12 and 22 are necessary. Since it becomes difficult to obtain durability and weather resistance, the thickness is preferably about 10 to 30 μm. The mesh-like electrodes 12 and 22 having such dimensions are hardly noticeable because the line width of each conductor line L is very thin and the pitch with respect to the line width is sufficiently large.

網目状電極１２，２２を形成する導体線Ｌの形成方法は、（ｉ）極微細な導電性粒子を含む導電性ペーストを透明基板１２の上にスクリーン印刷する方法（特開２００７−１４２３３４等参照）、（ｉｉ）銅などの金属箔を透明基板１２の上に積層し、金属箔の上にレジストパターンを形成し、金属箔をエッチングする方法（特開２００８−３２８８４等参照）が挙げられる。   The method of forming the conductor wire L for forming the mesh electrodes 12 and 22 includes: (i) a method of screen-printing a conductive paste containing extremely fine conductive particles on the transparent substrate 12 (see Japanese Patent Application Laid-Open No. 2007-142334, etc.) And (ii) a method of laminating a metal foil such as copper on the transparent substrate 12, forming a resist pattern on the metal foil, and etching the metal foil (see JP 2008-32884 A, etc.).

また、導体線Ｌの形成方法は、上記（ｉ）、（ｉｉ）の形成方法に限定されることはない。上記（ｉ）以外のグラビア印刷などの印刷法や上記（ｉｉ）以外のフォトリソグラフィを使用してもよい。   Moreover, the formation method of the conductor line L is not limited to the formation method of said (i) and (ii). Printing methods other than the above (i), such as gravure printing, and photolithography other than the above (ii) may be used.

網目状電極１２，２２における導電部領域１２ａ，２２ａの形状は、図２〜図６に示すように、複数の菱形状が直線状に連結された構成とし、各導電部領域１２ａ，２２ａにおける菱形状導電部領域の連結方向が互いに直交し、且つ、図７に示すように、第１面状体１及び第２面状体２を重ね合わせた場合に、上下の菱形状導電部領域が重なり合わないように配置している。なお、導電部領域１２ａ，２２ａの形状は、指などの接触ポイントを検出可能である限り、例えば直線状など任意の形状とすることが可能である。   As shown in FIGS. 2 to 6, the shape of the conductive portion regions 12 a and 22 a in the mesh electrodes 12 and 22 is a configuration in which a plurality of rhombus shapes are linearly connected. When the first planar body 1 and the second planar body 2 are overlapped as shown in FIG. 7, the upper and lower rhomboid conductive section areas overlap. It is arranged so that it does not fit. The shape of the conductive portion regions 12a and 22a can be any shape such as a straight line as long as a contact point such as a finger can be detected.

第１面状体１と第２面状体２との貼着は、空気層が介在しないように、粘着層３を全体に介在させて行うことが好ましい。粘着層３は、エポキシ系やアクリル系など、一般的な透明接着剤を用いることができ、ノルボルネン系樹脂の透明性フィルムからなる芯材を含むものであってもよい。粘着層３の厚みは、例えば５００μｍ以下であることが好ましい。また、シート状粘着材を複数枚重ね合わせることにより粘着層３を形成してもよく、更に、複数種類のシート状粘着材を重ね合わせて形成してもよい。   It is preferable that the first planar body 1 and the second planar body 2 are attached with the adhesive layer 3 interposed therebetween so that no air layer is present. The adhesive layer 3 may be made of a general transparent adhesive such as epoxy or acrylic, and may include a core made of a norbornene resin transparent film. The thickness of the adhesive layer 3 is preferably 500 μm or less, for example. Further, the adhesive layer 3 may be formed by overlapping a plurality of sheet-like adhesive materials, and further, a plurality of types of sheet-like adhesive materials may be overlapped.

また、例えば、第１面状体１における網目状電極１２の各網目の中心に、第２面状体２における網目状電極２２の各網目の交点が配置されるように、かつ、網目状電極１２の網目を形成する導体線Ｌが、網目状電極２２の網目を形成する導体線Ｌと直交するように第１面状体１と第２面状体２とを貼着すると、図８に示すように、見た目が全体的に均一なメッシュパターンとなるので特に好ましい。なお、図８は、図４の（ａ）及び（ｂ）を貼着した図に相当する。   Further, for example, the intersection of each mesh of the mesh electrode 22 in the second planar body 2 is arranged at the center of each mesh of the mesh electrode 12 in the first planar body 1, and the mesh electrode When the first planar body 1 and the second planar body 2 are pasted so that the conductor lines L forming the 12 meshes are orthogonal to the conductor lines L forming the meshes of the mesh electrode 22, FIG. As shown in the drawing, it is particularly preferable because it has a uniform mesh pattern as a whole. In addition, FIG. 8 is equivalent to the figure which stuck (a) and (b) of FIG.

第１面状体１と第２面状体２とを貼着して形成されたタッチスイッチ５は、例えば、ブラックマトリクスが形成されているディスプレイに取り付けられて使用されるが、ディスプレイへの取り付けに際しては、ブラックマトリクスに対して、導電部領域１２ａ，２２ａ及び非導電部領域１２ｂ，２２ｂの網目模様が斜方向になるようにするのが好ましい。ブラックマトリクスと網目模様が同方向に並ぶとモアレが発現するため、それを避けるためである。傾斜角は、実際に使用するディスプレイに合わせてモアレが発現しにくい角度に適宜調整する。   The touch switch 5 formed by adhering the first planar body 1 and the second planar body 2 is used by being attached to a display in which a black matrix is formed, for example. At this time, it is preferable that the mesh pattern of the conductive portion regions 12a and 22a and the non-conductive portion regions 12b and 22b is oblique with respect to the black matrix. This is to avoid moiré when the black matrix and the mesh pattern are arranged in the same direction. The tilt angle is appropriately adjusted to an angle at which moiré is unlikely to occur in accordance with the display actually used.

以上の構成を備えるタッチスイッチ５において、タッチ位置の検出方法は、従来の静電容量式のタッチスイッチと同様であり、電極１２ａ及び２２ｂの接触位置において人体の静電容量に基づく電圧等の変化を検出することによって、接触位置の座標が演算される。   In the touch switch 5 having the above-described configuration, the touch position detection method is the same as that of the conventional electrostatic capacitance type touch switch, and changes in voltage and the like based on the electrostatic capacity of the human body at the contact positions of the electrodes 12a and 22b. By detecting this, the coordinates of the contact position are calculated.

本実施形態に係るタッチスイッチ５においては、第１面状体１及び第２面状体２が有する網目状電極１２，２２を、帯状の導電部領域１２ａ，２２ａと非導電部領域１２ｂ，２２ｂとに区画し、非導電部領域１２ｂ，２２ｂが、導体線Ｌを断続的に切断する複数の切断部４を備えるように構成しているので、非導電部領域１２ｂ，２２ｂの電気絶縁性を確保しつつ、第１面状体１及び第２面状体２を重ね合わせた際に、網目密度のバラツキが発生することを効果的に抑制することができる。網目密度のバラツキを抑制できる結果、網目状電極１２，２２のパターン形状を目立ちにくくすることができ、視認性を向上させることができる。   In the touch switch 5 according to the present embodiment, the mesh electrodes 12 and 22 included in the first planar body 1 and the second planar body 2 are connected to the strip-shaped conductive portion regions 12a and 22a and the non-conductive portion regions 12b and 22b. The non-conductive portion regions 12b and 22b are configured to include a plurality of cut portions 4 that intermittently cut the conductor wire L, so that the non-conductive portion regions 12b and 22b can be electrically insulated. While ensuring, when the 1st planar body 1 and the 2nd planar body 2 are piled up, it can suppress effectively that the variation in a mesh density generate | occur | produces. As a result of suppressing the variation in the mesh density, the pattern shape of the mesh electrodes 12 and 22 can be made inconspicuous, and the visibility can be improved.

また、本実施形態に係る網目状電極１２，２２は、所定のマスクパターンを有するマスクを用いて導電性を有する材料を含むインクにより印刷形成することができるので、第１面状体１及び第２面状体２を効率よく製造することが可能になる。   In addition, the mesh electrodes 12 and 22 according to the present embodiment can be formed by printing with ink containing a conductive material using a mask having a predetermined mask pattern. The dihedral body 2 can be efficiently manufactured.

以上、本発明の一実施形態について説明したが、本発明の具体的な態様は上記実施形態に限定されない。例えば、上記実施形態においては、網目状電極１２，２２における非導電部領域１２ｂ，２２ｂが有する切断部４を複数の導体線Ｌの交差部に設けるようにしているが、非導電部領域１２ｂ，２２ｂにおける絶縁性が確保される位置であればどこに切断部４を設けてもよく、また、その長さも任意に設定できる。   As mentioned above, although one Embodiment of this invention was described, the specific aspect of this invention is not limited to the said embodiment. For example, in the above embodiment, the cut portions 4 of the non-conductive portion regions 12b and 22b in the mesh electrodes 12 and 22 are provided at the intersections of the plurality of conductor lines L. The cutting portion 4 may be provided anywhere as long as the insulating property in 22b is ensured, and the length thereof can be arbitrarily set.

また、上記実施形態においては、非導電部領域１２ｂ，２２ｂのみが導体線Ｌを切断する切断部４を備えるように構成しているが、各導電部領域１２ａ，２２ａの両端部１２１，１２２（２２１，２２２）間での導通性を阻害しない範囲で、図９に示すように、導電部領域１２ａ，２２ａにおける導体線Ｌを切断する切断部４ａを部分的に設けるように構成してもよい。このような構成により、視認性の向上をより一層図ることができる。   Moreover, in the said embodiment, although comprised so that only the nonelectroconductive part area | regions 12b and 22b may be provided with the cutting part 4 which cut | disconnects the conductor wire L, both ends 121 and 122 ( 221 and 222), as long as the electrical conductivity between the conductive portions 12a and 22a is not hindered, the cutting portion 4a for cutting the conductor line L in the conductive portion regions 12a and 22a may be partially provided. . With such a configuration, the visibility can be further improved.

１ 第１面状体
１１ 基板
１２ 網目状電極
１２ａ 導電部領域
１２ｂ 非導電部領域
２ 第２面状体
２１ 基板
２２ 網目状電極
２２ａ 導電部領域
２２ｂ 非導電部領域
３ 粘着層
４、４ａ 切断部
５ タッチスイッチ
Ｌ 導体線 DESCRIPTION OF SYMBOLS 1 1st planar body 11 board | substrate 12 mesh electrode 12a electroconductive part area | region
12b Non-conductive portion region 2 Second planar body 21 Substrate 22 Mesh electrode 22a Conductive portion region 22b Non-conductive portion region 3 Adhesive layer 4, 4a Cutting portion 5 Touch switch L Conductor wire

Claims (6)

複数の導体線によって網目状に形成される網目状電極を基板の一方面に備える面状体であって、
前記網目状電極は、間隔をあけて配置される複数の導電部領域と、前記各導電部領域の間に配置される非導電部領域とに区画されており、
前記非導電部領域は、前記導体線を切断する複数の切断部を備えており、
前記切断部によって前記非導電部領域は、隣接する前記導電部領域間を絶縁する面状体。 A planar body provided on one surface of a substrate with a mesh electrode formed in a mesh shape by a plurality of conductor wires,
The mesh electrode is partitioned into a plurality of conductive part regions arranged at intervals, and a non-conductive part region arranged between the conductive part regions,
The non-conductive part region includes a plurality of cutting parts for cutting the conductor wire,
The non-conductive portion region is a planar body that insulates between the adjacent conductive portion regions by the cut portion. 前記切断部は、前記網目状電極の交差部に形成されている請求項１に記載の面状体。   The planar body according to claim 1, wherein the cut portion is formed at an intersecting portion of the mesh electrode. 前記網目状電極の網目ピッチは、１００μｍ〜１０００μｍである請求項１又は請求項２に記載の面状体。   The planar body according to claim 1 or 2, wherein a mesh pitch of the mesh electrodes is 100 µm to 1000 µm. 前記導電部領域は、両端部間の導通性を阻害しない範囲で前記導体線を切断する切断部を備える請求項１から３のいずれかに記載の面状体。   The said conductive part area | region is a planar body in any one of Claim 1 to 3 provided with the cutting part which cut | disconnects the said conductor wire in the range which does not inhibit the electrical conductivity between both ends. 請求項１から請求項４のいずれかに記載の面状体を複数備え、
前記各面状体は、粘着層を介して貼着される静電容量式のタッチスイッチ。 A plurality of the planar bodies according to any one of claims 1 to 4,
Each of the planar bodies is a capacitive touch switch that is attached via an adhesive layer. 一方の面状体における前記導電部領域と、他方の面状体における前記導電部領域とが、互いに直交するように配置されている請求項５に記載の静電容量式のタッチスイッチ。   The capacitive touch switch according to claim 5, wherein the conductive part region in one planar body and the conductive part region in the other planar body are arranged so as to be orthogonal to each other.
JP2009113755A 2008-07-31 2009-05-08 Planar body and touch switch Expired - Fee Related JP5253288B2 (en)

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EP12004387A EP2511806A3 (en) 2008-07-31 2009-07-27 Capacitive touch switch
US13/000,634 US8717332B2 (en) 2008-07-31 2009-07-27 Planar element, and touch switch
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