JPS63289632A - Touch panel - Google Patents

Touch panel

Info

Publication number
JPS63289632A
JPS63289632A JP62125195A JP12519587A JPS63289632A JP S63289632 A JPS63289632 A JP S63289632A JP 62125195 A JP62125195 A JP 62125195A JP 12519587 A JP12519587 A JP 12519587A JP S63289632 A JPS63289632 A JP S63289632A
Authority
JP
Japan
Prior art keywords
layer
transparent
touch panel
finger
fine particles
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.)
Granted
Application number
JP62125195A
Other languages
Japanese (ja)
Other versions
JPH0820926B2 (en
Inventor
Takaaki Onoe
尾上 高明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP12519587A priority Critical patent/JPH0820926B2/en
Publication of JPS63289632A publication Critical patent/JPS63289632A/en
Publication of JPH0820926B2 publication Critical patent/JPH0820926B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To prevent an input medium arranged under a fine particle layer from being abraised due to the direct contact of a finger by fixing the transparent fine particle layer on the surface of a transparent touch panel for inputting the coordinates of a display image. CONSTITUTION:A low resistance transparent conductive layer 2 is stuck to the surface of a transparent base 1. A transparent dielectric layer 3 to be changed at its capacity due to the contact of a finger is stuck to the surface of the layer 2. Then, a transparent fine particle layer 4 is fixed on the surface of the layer 3. Consequently, display information can be optically penetrated, and even if the layer 4 is touched, finger pressure is impressed only to the surface of the fine particles, the finger is not contacted with the layer 3 to be trough parts among fine particles, and even if the finger touches the layer 3, extremely weak pressure is applied, so that the abrasion of the input medium is extremely reduced.

Description

【発明の詳細な説明】 〔概 要〕 表示装置の画面に取りつけて表示像の一部の上に指で触
れ、該像の座標入力をする透明なタッチパネルの表面に
凹凸をもたらす摩耗し難い透明微粒子4を固着すること
によって、タッチパネルとしての入力変化を起こしなが
ら該粒子の下に介在する入力媒体を指の直接接触による
摩耗から守るパネル構造である。
[Detailed Description of the Invention] [Summary] A transparent touch panel that is attached to the screen of a display device and used to touch a part of the displayed image with a finger to input the coordinates of the image. By fixing the fine particles 4, the panel structure protects the input medium located under the particles from wear due to direct contact with fingers while causing input changes as a touch panel.

〔産業上の利用分野〕[Industrial application field]

本発明はコンピュータなどの情報処理装置に対話形式で
情報を入力する道具となるタッチパネルの改良に関する
ものである。タッチパネルは表示装置の表示面に装着し
て、表示された複数の入力項目を見ながら操作者が情報
処理装置に入力したいと望むデータ(表示項目)をその
表示座標でコンピュータに伝えることを実行する。
The present invention relates to an improvement in a touch panel that is a tool for interactively inputting information into an information processing device such as a computer. The touch panel is attached to the display surface of the display device, and while viewing a plurality of displayed input items, the touch panel transmits data (display items) that the operator desires to input into the information processing device to the computer using the display coordinates. .

換言すると本装置は一つの座標入力装置であるが、文字
、図形単位の少し粗いものを入力するもので、タッチパ
ネルまたは指タツチパネルと呼ばれることが多い。単位
座標毎のより精密な入力を行うものを、タブレットまた
は座標入力装置などと称している場合がある。
In other words, although this device is a coordinate input device, it inputs somewhat rough characters and figures, and is often called a touch panel or finger touch panel. A device that performs more precise input for each unit coordinate is sometimes referred to as a tablet or a coordinate input device.

〔従来の技術〕[Conventional technology]

指タツチパネルの動作原理には、本発明の人体容量を利
用するものや、人体抵抗を利用するもの、人体に誘導す
るハムを利用するものの他に、縦横に形成したマトリク
ス状の電極の指による押圧接触で座標を知るスイッチマ
トリクス方式、押圧接触した抵抗シートの抵抗値から座
標を知る抵抗シート法、座標に対応する光ビームや音を
遮断または反射することで指定座標を知る光および音に
よる方法、その他接触指圧力から座標を知る方法も考え
られている。
The operating principle of the finger touch panel includes the one that uses the human body capacitance of the present invention, the one that uses human body resistance, the one that uses hum induced in the human body, and the one that uses a finger to press a matrix of electrodes formed vertically and horizontally. A switch matrix method that determines coordinates by contact; a resistive sheet method that determines coordinates from the resistance value of a resistor sheet that is pressed into contact; a light and sound method that determines specified coordinates by blocking or reflecting a light beam or sound that corresponds to the coordinates; Other methods of determining coordinates from contact finger pressure are also being considered.

本発明の一例として人体容量を利用する従来法を述べる
と、表示装置の表示面に取りつける人体容量センサとし
ては、第3図従来のタッチパネル断面図、および第4図
タッチパネル駆動力式例のタッチパネル部に示すような
構造を持っている。
To describe a conventional method using human body capacitance as an example of the present invention, as a human body capacitance sensor attached to the display surface of a display device, Fig. 3 is a sectional view of a conventional touch panel, and Fig. 4 is a touch panel part of an example of a touch panel driving force type. It has the structure shown in .

すなわち基板1となる透明な板、例えばガラス板の上に
、透明な低抵抗電極材料、例えば酸化インジウム(In
zOs)や酸化錫(SnO□)、あるいは前記それぞれ
が混合したインジウム錫酸化物(ITO)層よりなる均
一な砥抗率を持った数百オングストローム厚さの透明導
電層2を形成し、矩形をしたタッチパネルの場合、4辺
に対応して該導電層2に4つの容量測定電極T1〜T4
を設け、該電極からの信号線を測定辺選択手段Sにそれ
ぞれ接続する。上記導電層2の上に容量を形成するため
の誘電体層3として数千オングストローム厚の二酸化珪
素膜あるいはアルミナ膜を蒸着、スパッタ、浸漬、CV
D等のいずれかの方法で形成する。
That is, a transparent low resistance electrode material such as indium oxide (In
A transparent conductive layer 2 having a thickness of several hundred angstroms and having a uniform abrasiveness is formed of a layer of indium tin oxide (ITO) made of indium tin oxide (ITO), tin oxide (SnO□), or a mixture of each of the above. In the case of a touch panel, four capacitance measuring electrodes T1 to T4 are provided on the conductive layer 2 corresponding to the four sides.
are provided, and the signal lines from the electrodes are connected to the measurement side selection means S, respectively. As a dielectric layer 3 for forming a capacitance on the conductive layer 2, a silicon dioxide film or an alumina film with a thickness of several thousand angstroms is deposited, sputtered, immersed, or CVD.
It is formed by any method such as D.

このようにして作った指タツチパネルPを表示装置の表
示面に取りつけ、第4図に示す測定辺選択手段S1容量
変化測定手段C1座標演算手段A、記憶手段M、座標デ
ータ出力手段Oと接続し、タッチパネルP上の指の位置
の座標を検出することができる。
The finger touch panel P made in this way is attached to the display surface of a display device, and connected to the measurement side selection means S1 the capacitance change measurement means C1, the coordinate calculation means A, the storage means M, and the coordinate data output means O shown in FIG. , the coordinates of the finger position on the touch panel P can be detected.

詳述すると容量変化測定手段CはタッチパネルPからの
信号を受けて測定処理するだけでなく、座標測定に必要
なタッチパネルに加える原信号をも発信している。すな
わち負荷容量で変わる特定の周波数の発振波形が測定辺
選択手段Sを経由してタッチパネルの測定電極T1〜T
4に測定の必要に応じて印加されている。いま表示され
ているメニュー等の表示内容に本タッチパネルPの上か
ら指で触れると、指で接続された人間の対地容量がタッ
チパネルの面抵抗を介して測定電極T1〜T4に加わり
、その結果変化した発振周波数信号が測定辺選択手段S
を経由する。容量変化測定手段Cにおいて、タッチパネ
ルPの各辺の測定電極T1〜T4に伝わった容量変化を
測定する。その測定された信号は、座標演算手段Aに入
力すると共に特定の定数や以前の演算結果を記憶した記
憶手段Mを参照することによって容量−座標間の自然関
係から各辺の座標データを演算して出力手段Oから出力
する。
To be more specific, the capacitance change measuring means C not only receives and processes signals from the touch panel P, but also transmits original signals to be applied to the touch panel necessary for coordinate measurement. That is, an oscillation waveform of a specific frequency that changes depending on the load capacitance is transmitted to the measurement electrodes T1 to T of the touch panel via the measurement side selection means S.
4 is applied as necessary for measurement. When you touch the currently displayed menu or other displayed content with your finger from above the touch panel P, the ground capacitance of the person connected with your finger is applied to the measurement electrodes T1 to T4 via the surface resistance of the touch panel, resulting in a change. The oscillation frequency signal is sent to the measurement side selection means S.
via. The capacitance change measuring means C measures the capacitance changes transmitted to the measurement electrodes T1 to T4 on each side of the touch panel P. The measured signal is input to the coordinate calculation means A, and by referring to the storage means M that stores specific constants and previous calculation results, the coordinate data of each side is calculated from the natural relationship between capacitance and coordinates. and output from the output means O.

このようにしてタッチした位置の座標が測定され、出力
されていたがその際、タッチパネルの入力媒体面の摩耗
寿命が問題となっていた。
In this way, the coordinates of the touched position were measured and output, but the wear life of the input medium surface of the touch panel was a problem.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

このタッチ代入カバネル方式はデバイスの電極構造が単
純で作り易く好ましい。しかし実用上、同じ場所を何度
も指で触れて使う場合が多く出現し、指による接触を繰
り返すうちに良く使う場所の透明誘電体層3が偏摩耗し
てしまうことや、それによって露出した低抵抗導電層2
の摩耗劣化を起こすことがあることおよび、摩耗した透
明誘電体層3の隣接部分が剥離をおこし入力座標値が不
正確になることがある。そこで本発明は透明誘電体層3
の偏摩耗を無くし測定媒体の長寿命化を図ることを目的
とするものである。
This touch substitution Cabanel method is preferable because the electrode structure of the device is simple and easy to manufacture. However, in practice, there are many cases in which the same place is touched with the fingers many times, and as the fingers touch the same place repeatedly, the transparent dielectric layer 3 in frequently used places may wear unevenly, and as a result, the transparent dielectric layer 3 may become exposed. Low resistance conductive layer 2
In addition, adjacent parts of the worn transparent dielectric layer 3 may peel off, resulting in inaccurate input coordinate values. Therefore, the present invention provides transparent dielectric layer 3
The purpose of this is to eliminate uneven wear of the measuring medium and extend the life of the measuring medium.

〔問題点を解決するための手段〕[Means for solving problems]

本発明はタッチパネル表面に透視性を妨げない複数の微
粒子4の付着部分を設け、該微粒子4の付着部分以外は
凸部間の谷間であって、指の皮膚が触れ得ない凹部とな
るように透明誘電体層3、透明低抵抗導電層2などを作
成する。
The present invention provides a touch panel surface with a plurality of parts to which fine particles 4 are attached so as not to hinder visibility, and the parts other than the parts to which the fine particles 4 are attached are valleys between convex parts, and are concave parts that cannot be touched by the skin of a finger. A transparent dielectric layer 3, a transparent low resistance conductive layer 2, etc. are created.

〔作 用〕 指が触れ得ない谷部にある透明誘電体層3、遇明像抵抗
導電層2などの入力媒体は指タッチ等による摩耗から保
護されて寿命の長いタッチパネルが実現する。
[Function] Input media such as the transparent dielectric layer 3 and the resistive conductive layer 2 located in valleys that cannot be touched by fingers are protected from abrasion due to finger touches, etc., thereby realizing a touch panel with a long life.

〔実施例〕〔Example〕

以下図面を用いて本発明の複数の実施例を説明する。 A plurality of embodiments of the present invention will be described below with reference to the drawings.

第1図は本発明のタッチパネルの断面図の一例であり、
第2図はもう一つの実施例としてのタッチパネル断面図
である。
FIG. 1 is an example of a cross-sectional view of the touch panel of the present invention,
FIG. 2 is a sectional view of a touch panel as another embodiment.

(11第1図に示す例では、透明なガラス基板1上に低
抵抗導電層2として従来法で述べたITOを厚さ数百オ
ングストロームに均一に付着させる。
(11 In the example shown in FIG. 1, ITO, which has been described in the conventional method, is uniformly deposited on a transparent glass substrate 1 as a low-resistance conductive layer 2 to a thickness of several hundred angstroms.

そしてその低抵抗導電層2の電極端子として、該基板1
の4辺に測定電極T1〜T4を形成する。
The substrate 1 serves as an electrode terminal of the low resistance conductive layer 2.
Measurement electrodes T1 to T4 are formed on the four sides of.

その測定電極T1〜T4を避けた上部位置に指の接触で
容量変化をもたらす誘電体N3として二酸化珪素(Si
O□)またはアルミナ(Al□03)を数千オングスト
ローム厚さに付着させる。その上にガラス材料をスプレ
ーで塗布し、これによって微粒状に付着したガラスを所
定温度で焼き固めると、数百オングストロームから数ミ
クロン程度の直径を持った粒が誘電体層3の表面に強固
に固着する。
Silicon dioxide (Si
O□) or alumina (Al□03) is deposited to a thickness of several thousand angstroms. When a glass material is sprayed onto the glass material and the fine particles of glass are baked and hardened at a predetermined temperature, particles with a diameter of several hundred angstroms to several microns are firmly attached to the surface of the dielectric layer 3. stick.

このようにすると、光学的には従来通り表示情報を透視
出来るぽかりでなく、指触しても力のかかる所は微粒子
の表面上だけとなり、微粒子間の谷状部分にある誘電体
層3には指が触れず、もし触れたにしても極めて緩い力
となるので前記入力媒体の摩耗が激減する。
In this way, optically, there is no gap where the displayed information can be seen through as in the past, and even if you touch it with your finger, the force is only applied on the surface of the particle, and the dielectric layer 3 in the valley-like part between the particles Since the fingers do not touch the input medium, and even if they do, the force is extremely gentle, so that wear on the input medium is drastically reduced.

(2)第2図に示す例は最初に透明なガラス基板1上に
低抵抗導電層2としてITOを厚さ数百オングストロー
ムに均一に付着させ、その上に透明誘電体層3を形成す
る前に微粒子4による粗面を作るべく、ガラス材料をス
プレーで塗布し、所定温度で焼き固め、透明微粒子4で
凸凹となった粗面を作る。その上に誘電体N3として二
酸化珪素やアルミナ等を用いて、微粒子4を覆うと共に
透明微粒子4の間を埋める約数千オングストローム厚の
透明誘電体層3を形成する。
(2) In the example shown in FIG. 2, ITO is first uniformly deposited to a thickness of several hundred angstroms as a low resistance conductive layer 2 on a transparent glass substrate 1, and then before a transparent dielectric layer 3 is formed on it. In order to create a rough surface with the fine particles 4, a glass material is applied by spraying and baked and hardened at a predetermined temperature to create a rough surface with the transparent fine particles 4. Thereon, a transparent dielectric layer 3 of about several thousand angstroms thick is formed using silicon dioxide, alumina, or the like as a dielectric N3, covering the fine particles 4 and filling in the spaces between the transparent fine particles 4.

この方法においても指先の軽いタッチによって新しいタ
ッチパネル装置を完全に動作させることができる。すな
わち指に触れる微粒子表面だけで接触力を受けとめ、谷
状部分に蔭となった誘電体層3および低抵抗導電層2の
摩耗を防止することができる。
In this method as well, a new touch panel device can be fully operated with a light touch of a fingertip. In other words, the contact force is received only by the surface of the fine particles that touch the finger, and it is possible to prevent the dielectric layer 3 and the low-resistance conductive layer 2, which are hidden by the valley portions, from being worn out.

(3)  また透明なガラス基板1上に、最初にガラス
材料をスプレーで塗布し、焼き固めて直径1ミクロンオ
ーダのガラス塊粒からなる透明微粒子の層4を作り、そ
の上から低抵抗導電層2としてITOを厚さ数百オング
ストロームに付着させる。その上に誘電体層3として二
酸化珪素を数千オングストローム付着させても良く、こ
の順序に製作しても良好に働くタッチパネルPが形成で
きる。このパネルも指の接触による摩耗は透明微粒子4
の付着入力媒体膜を含めた外部表面に限定され、接触を
受けない粒子間の谷部の範囲は始めのままの抵抗値に保
たれる。
(3) In addition, a glass material is first sprayed onto a transparent glass substrate 1, and then baked and hardened to form a layer 4 of transparent fine particles consisting of glass lumps on the order of 1 micron in diameter. 2, ITO is deposited to a thickness of several hundred angstroms. Several thousand angstroms of silicon dioxide may be deposited thereon as the dielectric layer 3, and even if manufactured in this order, a touch panel P that works well can be formed. This panel also wears out due to contact with fingers due to transparent fine particles 4
The area of valleys between the particles that do not come into contact and is confined to the external surface, including the adhesion input medium membrane, remains at its original resistance value.

なお以上の実施例は共通の低抵抗導電層2を電極パッド
としたタッチパネルに本発明を適用した例について述べ
たものであるが、他に電極パッドを分割してマトリクス
配列などの所定形状に配置したタッチパネルにも同様に
適用できるはか・指で直接タッチする代わりに導電ペン
などで所望位置を接触し指示する形式のタッチパネルに
も同様に適用し良い結果を得ることができる。
Note that the above embodiment describes an example in which the present invention is applied to a touch panel using a common low-resistance conductive layer 2 as an electrode pad, but it is also possible to divide the electrode pad and arrange it in a predetermined shape such as a matrix arrangement. The present invention can be similarly applied to touch panels in which a desired position is touched and indicated with a conductive pen or the like instead of being directly touched with a pen or finger, and good results can be obtained.

〔発明の効果〕〔Effect of the invention〕

以上述べたように本発明のタッチパネルによれば、使用
者の指がいかに何度もパネルに接触しようとも、固形ガ
ラス微粒子が形成する粗面の前記微粒子頂部だけが接触
するため、微粒子頂部以外の入力媒体、誘電体N3およ
び低抵抗導電層2は摩耗から逃れ、タッチパネルとして
の機能を損なうことなく、寿命の長いパネルとなる。し
かも粗面を形成する粒子は、該面からの平行反射光をラ
ンダムな方向に散乱させるので、往々にしである光沢面
からの特定方向からの強い反射像が見えたりすることが
なく、目的の表示装置が示す真の像を通過して確実に見
ることができる。この効果は大きい。
As described above, according to the touch panel of the present invention, no matter how many times the user's finger touches the panel, only the tops of the fine particles on the rough surface formed by the solid glass fine particles come into contact. The input medium, dielectric N3 and low resistance conductive layer 2 are free from wear, resulting in a panel with a long lifespan without impairing its functionality as a touch panel. Moreover, the particles forming the rough surface scatter the parallel reflected light from the surface in random directions, so you will not see the strong reflection image from a specific direction from the glossy surface, which is often the case. It is possible to see through and reliably see the true image shown by the display device. This effect is large.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明のタッチパネル断面図、第2図は本発明
のタッチパネル断面図のもう一つの例、 第3図は従来のタッチパネルの断面図、第4図はタッチ
パネル駆動方式の一例説明図である。 第1図において、 1は透明基板、 2は低抵抗導電層、 3は誘電体層、 4は突起を与える透明微粒子である。 千乾明のグ・ソ手lぞキル、駈動方人例第4図
FIG. 1 is a sectional view of a touch panel of the present invention, FIG. 2 is another example of a sectional view of a touch panel of the present invention, FIG. 3 is a sectional view of a conventional touch panel, and FIG. 4 is an explanatory diagram of an example of a touch panel driving method. be. In FIG. 1, 1 is a transparent substrate, 2 is a low resistance conductive layer, 3 is a dielectric layer, and 4 is transparent fine particles that provide projections. Chiken Akira's Gu So Hand Izo Kill, Cantering Direction Example Figure 4

Claims (2)

【特許請求の範囲】[Claims] (1)透明基板1上に透明導電層2および透明誘電体層
3で被覆して形成し、透明導電層2に対する接触操作に
よって該接触位置の情報を検出するタッチパネルにおい
て、 該タッチパネル表面の操作者が操作する側に透明微粒子
層4を固着せしめたことを特徴とするタッチパネル。
(1) In a touch panel that is formed by coating a transparent conductive layer 2 and a transparent dielectric layer 3 on a transparent substrate 1 and detects information on a touch position by a touch operation on the transparent conductive layer 2, an operator on the surface of the touch panel A touch panel characterized in that a transparent fine particle layer 4 is fixed to the side on which the operator operates.
(2)前記透明微粒子層4が塗布されたガラス材料の融
着体よりなることを特徴とする特許請求の範囲第1項に
記載したタッチパネル。
(2) The touch panel according to claim 1, characterized in that the transparent fine particle layer 4 is made of a fused body of a glass material coated thereon.
JP12519587A 1987-05-21 1987-05-21 Touch panel Expired - Fee Related JPH0820926B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12519587A JPH0820926B2 (en) 1987-05-21 1987-05-21 Touch panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12519587A JPH0820926B2 (en) 1987-05-21 1987-05-21 Touch panel

Publications (2)

Publication Number Publication Date
JPS63289632A true JPS63289632A (en) 1988-11-28
JPH0820926B2 JPH0820926B2 (en) 1996-03-04

Family

ID=14904272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12519587A Expired - Fee Related JPH0820926B2 (en) 1987-05-21 1987-05-21 Touch panel

Country Status (1)

Country Link
JP (1) JPH0820926B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010177601A (en) * 2009-01-30 2010-08-12 Casio Computer Co Ltd Display device
US11631357B2 (en) 2020-02-06 2023-04-18 Yamaha Corporation Display device for musical instrument and display switching method of display device for musical instrument

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935231A (en) * 1982-08-20 1984-02-25 Matsushita Electric Ind Co Ltd Display device
JPS6189941U (en) * 1984-11-14 1986-06-11

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935231A (en) * 1982-08-20 1984-02-25 Matsushita Electric Ind Co Ltd Display device
JPS6189941U (en) * 1984-11-14 1986-06-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010177601A (en) * 2009-01-30 2010-08-12 Casio Computer Co Ltd Display device
US11631357B2 (en) 2020-02-06 2023-04-18 Yamaha Corporation Display device for musical instrument and display switching method of display device for musical instrument

Also Published As

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JPH0820926B2 (en) 1996-03-04

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