JPH01281624A - Transparent type touch panel - Google Patents
Transparent type touch panelInfo
- Publication number
- JPH01281624A JPH01281624A JP63112202A JP11220288A JPH01281624A JP H01281624 A JPH01281624 A JP H01281624A JP 63112202 A JP63112202 A JP 63112202A JP 11220288 A JP11220288 A JP 11220288A JP H01281624 A JPH01281624 A JP H01281624A
- Authority
- JP
- Japan
- Prior art keywords
- transparent
- touch panel
- substrate
- film
- conductive layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000843 powder Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 32
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 6
- 229910001887 tin oxide Inorganic materials 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 4
- AZWHFTKIBIQKCA-UHFFFAOYSA-N [Sn+2]=O.[O-2].[In+3] Chemical compound [Sn+2]=O.[O-2].[In+3] AZWHFTKIBIQKCA-UHFFFAOYSA-N 0.000 claims description 3
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229910003437 indium oxide Inorganic materials 0.000 claims 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 abstract description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 229920005749 polyurethane resin Polymers 0.000 abstract description 3
- 229910052709 silver Inorganic materials 0.000 abstract description 3
- 239000004332 silver Substances 0.000 abstract description 3
- 229920006267 polyester film Polymers 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000010419 fine particle Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- WMHSAFDEIXKKMV-UHFFFAOYSA-N oxoantimony;oxotin Chemical compound [Sn]=O.[Sb]=O WMHSAFDEIXKKMV-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Landscapes
- Position Input By Displaying (AREA)
- Push-Button Switches (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、フィルム方式の新規な構造の透明タッチパネ
ルに関する。 タッチパネルは、図形入力装置やＣＲＴ
、ＬＣＤ素子、ＥＬ素子、ＰＤＰ等の表示装置に使用さ
れ、パネル上の任意の点を押すことにより、押勤点に対
応する座標位置を検出するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a transparent touch panel with a novel film-type structure. The touch panel is a graphic input device or CRT.
It is used in display devices such as , LCD elements, EL elements, and PDPs, and by pressing an arbitrary point on the panel, the coordinate position corresponding to the pressed point is detected.
［発明の技術的背景Ｊ
フィルム方式の透明タッチパネルは、他の光センサ一方
式や静電容量方式のものと興なり位置検出がアナログ的
で非常に高分解能であるという特長がある。[Technical Background of the Invention J Film type transparent touch panels are different from other optical sensor type and capacitance type types in that they detect positions in an analog manner and have extremely high resolution.
従来、この種のフィルム方式の透明タッチパネルは、導
電被膜を形成した２枚の透明導電フィルムを対向配置さ
せ、少なくとも一方にドツトスペーサー等を設けること
により ２枚のフィルムに一定の間隔を保つようにして
貼り合わせた構造になっている。 しかし、このフィル
ム方式のものは、特に大面積の場合、２枚のフィルムの
貼り合せの際に生じるたわみ等により誤作動が起こりや
すい。Conventionally, this type of film-type transparent touch panel has two transparent conductive films coated with conductive films arranged facing each other, and a dot spacer or the like provided on at least one of the films to maintain a constant distance between the two films. The structure is made by pasting them together. However, this film type device is prone to malfunction due to deflection, etc. that occurs when two films are bonded together, especially when the area is large.
これを防止するためには、ある程度ドブトスベーは、ド
ツトスペーサ一部分のみならずその周辺のかなりの部分
が不感点となり、高分解能という利点が損なわれる。
また、透明導電フィルムが堅いためペンなどを用いタッ
チパネル面上で入力する際に、ドツトスペーサー周辺部
でフィルムが屈曲し透明導電フィルム上に形成されてい
る導１８被膜の剥離をひき起こしやすく、耐久性の面で
も問題があった。In order to prevent this, not only a part of the dot spacer but also a considerable part around it becomes a dead point, and the advantage of high resolution is lost.
In addition, since the transparent conductive film is hard, when inputting information on the touch panel surface using a pen or the like, the film bends around the dot spacer, easily causing the conductive 18 coating formed on the transparent conductive film to peel off. There were also problems with sexuality.
これとは別に、２枚のフィルムの間にドツトスペーサー
ではなく透明感圧導ｔｈＭを設けた透明タッチパネルが
考案されているが（特開昭６１−２４３６２２号公報）
、その透明感圧導電層の感圧感度を上げるとやはりフィ
ルムのたわみによる誤作動を起こしてしまい、また感圧
感度を下げると入力圧力を加えてら十分に抵抗が下がら
ないのでスイッチとして作動しないことがあり、このよ
うに透明感圧導電層のみでは、スイッチ機能に問題が多
く実用的でなかった。Separately, a transparent touch panel has been devised in which a transparent pressure-sensitive conductor thM is provided between two films instead of a dot spacer (Japanese Patent Application Laid-open No. 243622/1983).
If the pressure sensitivity of the transparent pressure-sensitive conductive layer is increased, malfunctions may occur due to film deflection, and if the pressure sensitivity is decreased, the resistance will not drop sufficiently when input pressure is applied, so it will not function as a switch. However, using only a transparent pressure-sensitive conductive layer has many problems with the switch function and is not practical.
［発明の目的］
本発明は、以上の欠点を解消するためになされたしので
、高分解能かつスイッチ機能の信頼性を向上せしめた、
新規な・構造の透明タッチパネルを提供することである
。[Object of the Invention] The present invention has been made in order to eliminate the above-mentioned drawbacks.
The purpose of the present invention is to provide a transparent touch panel with a new structure.
本発明者らは、このような目的を達成すべく鋭意検討し
た結果、次に示す構成の透明タッチパネルが高い分解能
であるとともに、スイッチ機能の信頼性に優れているこ
とを見いだし、本発明を成すに至った。As a result of intensive studies to achieve the above object, the inventors of the present invention discovered that a transparent touch panel having the following configuration has high resolution and excellent reliability of switch functions, and has accomplished the present invention. reached.
すなわち本発明は、基本的に、
第１の透明導電性の基板と、その第１の基板上に構成し
た第１の電気回路と、第２の透明導電性の基板と、その
第２の基板上に構成した第２の電気回路と、前記第１お
よび第２の基板の構成面にそれぞれ被着された透明感圧
導電層とから成り、前記第１および第２の基板の構成面
が互いに対向して配置されたことを特徴とする透明タッ
チパネルである。That is, the present invention basically comprises a first transparent conductive substrate, a first electric circuit configured on the first substrate, a second transparent conductive substrate, and the second transparent conductive substrate. and a transparent pressure-sensitive conductive layer deposited on the constituent surfaces of the first and second substrates, respectively, and the constituent surfaces of the first and second substrates are disposed in contact with each other. This is a transparent touch panel characterized by being arranged facing each other.
本発明に用いられる透明導電性の基板は、第１の基板お
よび第２の基板の対で用いられている。The transparent conductive substrate used in the present invention is used as a pair of a first substrate and a second substrate.
その基板はＡｕ又はインジウム−スズ酸化物等の透明導
電被膜を形成した透明なフィルム、シート又は板であり
、基材としては、例えばポリエステル、ポリカーボネー
ト、ポリ１０ピレン−ポリエステル複合フィルム、ポリ
エーテルスルフォン、ガラス等が挙げられる。The substrate is a transparent film, sheet or plate on which a transparent conductive coating such as Au or indium-tin oxide is formed, and examples of the base material include polyester, polycarbonate, poly-10-pyrene-polyester composite film, polyether sulfone, Examples include glass.
本発明における第１の基板は、操作面側（可動側）に配
置されるものであり、押圧に対しである程度の面のたわ
みと復元力があることが必要である。 そのため、厚さ
が５０〜２５０μｍの範囲、さらには７５〜２００μｍ
の範囲の町どう性フィルムまたはシートを使用すること
が好ましい、 厚さが５０μｍ未満では強度的に弱く、
スイッチの性能および寿命に欠けるものとなり、２５０
μｍを超える場合には可どう性が乏しくなって好ましく
ない。The first substrate in the present invention is placed on the operation surface side (movable side), and needs to have a certain degree of surface deflection and restoring force against pressure. Therefore, the thickness ranges from 50 to 250 μm, and even from 75 to 200 μm.
It is preferable to use a film or sheet with a thickness of less than 50 μm, which is weak in strength.
The performance and lifespan of the switch will be compromised, resulting in a loss of 250
If it exceeds μm, flexibility becomes poor, which is not preferable.
固定側の第２の基板は、フィルム、シート又は板のいず
れでしよいが、その厚さは５０〜３０００μｔの範囲、
さらに好ましくは１５〜２０００μｍの範囲が好ましい
、 厚さが５０μｍ未満では強度的に弱く、スイッチの
性能および寿命に欠けるものとなり、３０００μ■を超
える場合は強度的に問題がないらのの、透明タッチパネ
ル全体の厚さが不相応に厚くなり、また経済的にも好ま
しくない。The second substrate on the fixed side may be a film, a sheet, or a plate, and its thickness is in the range of 50 to 3000 μt,
More preferably, the thickness is in the range of 15 to 2000 μm. If the thickness is less than 50 μm, the strength will be weak and the switch will lack performance and lifespan. If it exceeds 3000 μm, there will be no problem in terms of strength. The overall thickness becomes disproportionately large and is also economically unfavorable.
上記基板に構成する電気回路の代表例は、第１および第
２の基板の対向辺近傍面に平行に設けられた電極であり
、その形成は、銀、グラファイト、カーボンブラックな
どの導電性微粒子とマトリックス高分子とからなる導電
性塗料〈インク）を印刷することなどによって実施し得
る。 平行を極を有した第１および第２の基板は、この
２組の平行′ζ極が互いに直角方向をなすように配置さ
れる。A typical example of the electric circuit configured on the above substrate is an electrode provided in parallel on the surfaces near the opposing sides of the first and second substrates, which are formed using conductive fine particles such as silver, graphite, and carbon black. This can be carried out by printing a conductive paint (ink) consisting of a matrix polymer. The first and second substrates having parallel poles are arranged such that the two sets of parallel 'ζ poles are perpendicular to each other.
次に前記第１および第２基板の両方に被着される透明感
圧導電層は、透明な高分子弾性体に、酸化スズ−酸化ア
ンチモン又は酸化インジウム−酸化スズから成るコロイ
ド状の粉、１００Å以下といったコロイド状の金粉、透
明なガラスビーズやプラスチックビーズに酸化スズ−酸
化アンチモン、酸化インジウム−酸化スズ、Ａｕ、Ｐｔ
等のコーティングをした導電粉を分散させたペーストに
より形成される。The transparent pressure-sensitive conductive layer deposited on both the first and second substrates is then coated with a transparent polymeric elastomer and a colloidal powder of tin oxide-antimony oxide or indium oxide-tin oxide. Colloidal gold powder, transparent glass beads and plastic beads such as tin oxide-antimony oxide, indium oxide-tin oxide, Au, Pt
It is formed from a paste in which conductive powder coated with .
この透明感圧導電層に用いられる高分子弾性体の選定の
目安としては、被膜にした場合に透明性があることと、
応用範囲の広いスクリーン印刷が可能であるかどうかが
挙げられ、また基板への接着性も重要な点である。 こ
のような点で、例えばシリコーンゴム、ポリエステル系
エラストマー、ポリウレタン系エラストマーなどが挙げ
られる。As a guideline for selecting the polymer elastic material used for this transparent pressure-sensitive conductive layer, it should be transparent when formed into a film,
An important point is whether screen printing, which has a wide range of applications, is possible, and the adhesion to the substrate is also important. In this respect, examples include silicone rubber, polyester elastomer, polyurethane elastomer, and the like.
また用いられる導電性微粒子の形状としては、特に限定
されるものではないが、その大きさについては、透明感
圧導電層の透明性に大きく影響を与えるため、０．１μ
ｍ以下のものが好ましい、またその導電性微粒子の抵抗
は、高分子弾性体に充填される導電性微粒子の量が少な
いほど透明性が上げられるため、低抵抗であることが好
ましい。Further, the shape of the conductive fine particles used is not particularly limited, but the size is 0.1 μm since it greatly affects the transparency of the transparent pressure-sensitive conductive layer.
It is preferable that the resistance of the conductive fine particles is less than m, and the resistance of the conductive fine particles is preferably low because the smaller the amount of the conductive fine particles filled in the polymer elastic body, the higher the transparency is.
またこの透明感圧導電層の厚さは、１〜２０μｍの範囲
が好ましい、 １μｍ未満では均一な厚さの透明感圧
導電膜が得られにくく、また良好な感圧導電性が得られ
ず、耐久性の面でも好ましくない、２０μＩを超える場
合は透明性が悪化し好ましくない。Further, the thickness of this transparent pressure-sensitive conductive layer is preferably in the range of 1 to 20 μm; if it is less than 1 μm, it is difficult to obtain a transparent pressure-sensitive conductive film with a uniform thickness, and good pressure-sensitive conductivity cannot be obtained. It is also unfavorable in terms of durability, and if it exceeds 20 μI, transparency deteriorates, which is unfavorable.
［発明の効果］
本発明の透明タッチパネルによれば、構成する２枚の透
明導電性の基板の両方に透明な感圧導電層を有する抵抗
膜方式という、従来技術にみられない新規な構造を有し
ているため、従来のようなドツトスペーサ等による不感
点の存在がまったく無く、またスイッチ機能の信頼性、
特に両透明感圧導電層間の接触面での効果によりオフ時
に安定した高抵抗が得られる。 さらに透明導電性基板
上の透明導電被膜が透明感圧導電層により完全に覆われ
ているから、該透明導電被覆の損傷が防がれ、組み立て
時の取り扱かいが簡単になるとともに耐久性の面で格段
の向上が得られる。[Effects of the Invention] According to the transparent touch panel of the present invention, a novel structure not seen in the prior art, which is a resistive film type in which both of the two constituent transparent conductive substrates have transparent pressure-sensitive conductive layers, is provided. As a result, there is no dead point caused by dot spacers, etc., as in the past, and the reliability of the switch function is improved.
In particular, due to the effect at the contact surface between both transparent pressure-sensitive conductive layers, stable high resistance can be obtained during off-state. Furthermore, since the transparent conductive coating on the transparent conductive substrate is completely covered with the transparent pressure-sensitive conductive layer, damage to the transparent conductive coating is prevented, and handling during assembly is simplified and durability is improved. A significant improvement can be achieved in terms of
し発明の実施例］
以下において実施例および比較例を図面とともに掲げ、
本発明をさらに具体的に説明する。 ただし本発明はそ
の要旨を損ねない範囲において実施例のみに限定される
ものでない。Examples of the invention] Examples and comparative examples are listed below with drawings,
The present invention will be explained in more detail. However, the present invention is not limited to the examples without departing from the gist thereof.
実施例 １
第１図に示すように、大きさ１００ｘ １００１ｍで、
厚さ １２５μｍのポリエステルフィルムの表面に、酸
化スズの透明導電被ＷＡｌａを形成することにより、面
積抵抗５００Ω／口の透明導電性フィルム１を得、その
対向辺の近くに、銀粒子配合のポリウレタン樹脂で平行
電極２を設けた。 同図における■−■線に沿うフィル
ム断面図を第２図に示す。Example 1 As shown in Figure 1, the size is 100 x 1001 m,
By forming a transparent conductive coating WAla of tin oxide on the surface of a polyester film with a thickness of 125 μm, a transparent conductive film 1 with a sheet resistance of 500 Ω/hole was obtained, and a polyurethane resin containing silver particles was placed near the opposite side of the film. Parallel electrodes 2 were provided. A sectional view of the film taken along the line ■-■ in the same figure is shown in FIG.
次に第３図に示すように、この平行を極２をもつ透明導
電性フィルム１［第１，２国Ｊ上に、粒径０，１μｍ以
下の酸化スズ−酸化アンチモンからなる導電粉をポリウ
レタン樹脂に配合してなるペーストを用いて、厚さ５μ
ｍの透明感圧電導層３を設けた。Next, as shown in Fig. 3, conductive powder consisting of tin oxide and antimony oxide with a particle size of 0.1 μm or less is coated on a transparent conductive film 1 [1st and 2nd country J] having poles 2 parallel to each other. Using a paste blended with resin, the thickness is 5 μm.
A transparent pressure-sensitive conductive layer 3 of m was provided.
次に第４図に示すように、透明感圧導電層３を形成した
後の透明導電性フィルム１［第３図１２枚を、透明感圧
導電層３の面が互いに対向して内側にくるように、かつ
それぞれの平行電極２が互いに直交するように（図には
下の平行電極は図示されていない）重ね合わせて、透明
タッチパネルを構成した。Next, as shown in FIG. 4, after forming the transparent pressure-sensitive conductive layer 3, the transparent conductive film 1 [FIG. A transparent touch panel was constructed by overlapping each other so that the parallel electrodes 2 were perpendicular to each other (the lower parallel electrodes are not shown in the figure).
この透明タッチパネルにボールペンを用いてスイッチン
グ特性を測定したところ、無加圧時の絶縁抵抗はＩＯＭ
Ω以上であり、加圧してオンした時の抵抗は１．５にΩ
以下、またその時の荷重は５０Ｑであった。When we measured the switching characteristics of this transparent touch panel using a ballpoint pen, we found that the insulation resistance when no pressure was applied was IOM.
Ω or more, and the resistance when pressurized and turned on is 1.5 Ω.
Below, the load at that time was 50Q.
さらに耐久性試験として、１００ｇの荷重をかけたボー
ルペンで同一箇所を５０万回掃引した後スイッチング特
性を測定したところ、初期とほとんど同じ結果であった
。Furthermore, as a durability test, the switching characteristics were measured after sweeping the same location 500,000 times with a ballpoint pen under a load of 100 g, and the results were almost the same as the initial results.
比較例 １
第５図に示すように、一方は実施例１と同じ平行を極２
と透明感圧導電層３を有する透明導電性フィルム１と、
他方は平行電極（図にはこの平行１！極は図示されてい
ない）のみを有する透明導電性フィルム５とを、両組の
平行電極が直交するように重ね合わせて、透明タッチパ
ネルを構成した。Comparative Example 1 As shown in FIG.
and a transparent conductive film 1 having a transparent pressure-sensitive conductive layer 3;
The other was a transparent conductive film 5 having only parallel electrodes (this parallel 1! pole is not shown in the figure), and the two sets of parallel electrodes were overlapped so that they were perpendicular to each other to form a transparent touch panel.
この透明タッチパネルにおいては、無加圧時の絶縁抵抗
が５〜１００にΩと不安定で不良であった。This transparent touch panel had an unstable insulation resistance of 5 to 100 Ω when no pressure was applied, and was poor.
比較例 ２
第６図に示すように、平行を極６と、付加型シリコーン
ゴムＴＳＥ３３６０ ［東芝シリコーン曲製、商品名］
で一点頭線範囲７ａに形成した、直径０．５＋１１、厚
さ０．０５１＋１ 、間隔５．Ｏｌｌのドツト状の絶縁
パターン７を有する透明導電性フィルム８を得る。 そ
して第６図の絶縁パターンを形成した後の透明電導性フ
ィルム８の構成面に対向させて、第２図に示される平行
ｔ［ｔ２のみを有する透明導電性フィルム１とを、第７
図に示すように、平行電極６，２（第７図では平行電極
６は図示されない）が直交するように重ね合わせて、透
明タッチパネルを構成した。Comparative Example 2 As shown in Figure 6, the parallel pole is 6 and the additive silicone rubber TSE3360 [Toshiba Silicone Koku Seisaku, trade name]
The diameter is 0.5+11, the thickness is 0.051+1, and the interval is 5. A transparent conductive film 8 having an Oll dot-shaped insulating pattern 7 is obtained. Then, the transparent conductive film 1 having only the parallel t[t2 shown in FIG.
As shown in the figure, parallel electrodes 6 and 2 (parallel electrode 6 is not shown in FIG. 7) are superimposed orthogonally to form a transparent touch panel.
この透明タッチパネルにおいては、無加圧時の絶縁抵抗
は１００ＭΩ以上であり、加圧してオンした時の抵抗は
１．０にΩ以下、またその時の荷重は３０ｇであった。In this transparent touch panel, the insulation resistance when no pressure was applied was 100 MΩ or more, and the resistance when turned on by applying pressure was 1.0Ω or less, and the load at that time was 30 g.
しかし実装試験では、絶縁パターン７とその周辺部が
不感点となった。 さらに耐久性試験では、１００ｇの
荷重のボールペンで同一箇所を１０００回程度挿引する
と、絶縁パターン７周辺の酸化スズ導電層ＷＡｌａ、８
ａのｌ！ｌｒ、ｉがみられた。However, in the mounting test, the insulating pattern 7 and its surrounding area became dead points. Furthermore, in a durability test, when a ballpoint pen with a load of 100 g was inserted into the same point about 1000 times, the tin oxide conductive layer WAla around the insulating pattern 7,
a no l! lr and i were seen.
第１図は本発明実施例１における平行電極を有する透明
導電性フィルムの平面図、第２図は第１図のＩＩ−Ｉ線
に沿う断面略図、第３図は実施例１に係るタッチパネル
構成体の断面略図、第４図は実施例１の透明タッチパネ
ルを示す断面略図、第５図は比較例１の透明タッチパネ
ルを示す断面略図、第６図は比較ＰＡ２に係るタッチパ
ネル構成体の平面図、第７図は比較例２の透明タッチパ
ネルを示す断面略図である。
！、５．８・・・透明導電性フィルム、 ｌａ、８ａ・
・・導電被膜、 ２，６・・・平行電極、 ３・・・透
明感圧導電層、 ７・・・絶縁性パターン。
第 ６ＬＫ１FIG. 1 is a plan view of a transparent conductive film having parallel electrodes in Example 1 of the present invention, FIG. 2 is a schematic cross-sectional view taken along line II-I in FIG. 1, and FIG. 3 is a touch panel configuration according to Example 1. 4 is a schematic cross-sectional view showing the transparent touch panel of Example 1, FIG. 5 is a schematic cross-sectional view showing the transparent touch panel of Comparative Example 1, and FIG. 6 is a plan view of the touch panel structure according to Comparative PA2. FIG. 7 is a schematic cross-sectional view showing a transparent touch panel of Comparative Example 2. ! , 5.8...transparent conductive film, la, 8a.
...Conductive coating, 2,6...Parallel electrodes, 3...Transparent pressure-sensitive conductive layer, 7...Insulating pattern. 6th LK1
Claims (1)
成した第１の電気回路と、第２の透明導電性の基板と、
その第２の基板上に構成した第２の電気回路と、前記第
１および第２の基板の構成面にそれぞれ被着された透明
感圧導電層とから成り、前記第１および第２の基板の構
成面が互いに対向して配置されたことを特徴とする透明
タッチパネル。 ２ 第１の透明導電性の基板が、可動側の基板であって
、厚さ５０〜２５０μｍの範囲の可とう性を有するフィ
ルムまたはシートからなり、かつ第２の透明導電性の基
板が、固定側の基板であって、厚さ５０〜３０００μｍ
の範囲のフィルム、シートまたは板からなる請求項１記
載の透明タッチパネル。 ３ 第１および第２の透明導電性の基板上に構成した電
気回路が、基板の対向辺近傍面に構成した平行電極であ
るとともに、第１及び第２の基板は、それらの平行電極
が互いに直角方向をなすように配置されたものである請
求項１記載の透明タッチパネル。 ４ 透明感圧導電層が、透明な高分子弾性体に、酸化ス
ズと酸化アンチモンもしくは酸化インジウムと酸化スズ
から成るコロイド状の粉、コロイド状の金粉、透明なガ
ラスビーズもしくはプラスチックビーズに酸化スズ−酸
化アンチモン、酸化インジウム−酸化スズ、Ａｕもしく
はＰｔのコーティングをした導電粉のうち、少なくとも
１つを分散させたペーストにより形成されたものである
請求項１記載の透明タッチパネル。 ５ 透明感圧導電層は、その厚さが１〜２０μｍの範囲
である請求項１記載の透明タッチパネル。[Claims] 1. A first transparent conductive substrate, a first electric circuit configured on the first substrate, and a second transparent conductive substrate;
a second electrical circuit constructed on the second substrate; and a transparent pressure-sensitive conductive layer deposited on the constituent surfaces of the first and second substrates, respectively; A transparent touch panel characterized in that constituent surfaces thereof are arranged to face each other. 2. The first transparent conductive substrate is a movable substrate and is made of a flexible film or sheet with a thickness in the range of 50 to 250 μm, and the second transparent conductive substrate is a fixed substrate. side substrate with a thickness of 50 to 3000 μm
The transparent touch panel according to claim 1, comprising a film, sheet or plate in the range of. 3. The electrical circuits formed on the first and second transparent conductive substrates are parallel electrodes formed on surfaces near opposite sides of the substrates, and the first and second substrates have parallel electrodes formed on each other. The transparent touch panel according to claim 1, wherein the transparent touch panel is arranged in a right angle direction. 4 The transparent pressure-sensitive conductive layer consists of a transparent polymeric elastic material, colloidal powder consisting of tin oxide and antimony oxide or indium oxide and tin oxide, colloidal gold powder, transparent glass beads or plastic beads, and tin oxide. 2. The transparent touch panel according to claim 1, wherein the transparent touch panel is formed of a paste in which at least one of conductive powder coated with antimony oxide, indium oxide-tin oxide, Au, or Pt is dispersed. 5. The transparent touch panel according to claim 1, wherein the transparent pressure-sensitive conductive layer has a thickness in the range of 1 to 20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63112202A JPH01281624A (en) | 1988-05-09 | 1988-05-09 | Transparent type touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63112202A JPH01281624A (en) | 1988-05-09 | 1988-05-09 | Transparent type touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01281624A true JPH01281624A (en) | 1989-11-13 |
Family
ID=14580815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63112202A Pending JPH01281624A (en) | 1988-05-09 | 1988-05-09 | Transparent type touch panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01281624A (en) |
-
1988
- 1988-05-09 JP JP63112202A patent/JPH01281624A/en active Pending
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