JPH07220592A - Contactless touch switch - Google Patents

Contactless touch switch

Info

Publication number
JPH07220592A
JPH07220592A JP1264194A JP1264194A JPH07220592A JP H07220592 A JPH07220592 A JP H07220592A JP 1264194 A JP1264194 A JP 1264194A JP 1264194 A JP1264194 A JP 1264194A JP H07220592 A JPH07220592 A JP H07220592A
Authority
JP
Japan
Prior art keywords
light
film member
guide plate
light guide
receiving element
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
Application number
JP1264194A
Other languages
Japanese (ja)
Inventor
誠 ▲高▼島
Makoto Takashima
Yoshiyuki Furuya
嘉之 古屋
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.)
Yazaki Corp
Original Assignee
Yazaki Corp
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 Yazaki Corp filed Critical Yazaki Corp
Priority to JP1264194A priority Critical patent/JPH07220592A/en
Publication of JPH07220592A publication Critical patent/JPH07220592A/en
Pending legal-status Critical Current

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  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

PURPOSE:To provide an operation feel at the time of on/off operation, and achieve a long service life because of having no electric continuity contacts by transmission of light from a light conductive plate to the side of a film member when the film member is pressed to deform to be tightly applied to the light conductive plate for photosensitization or disconnection of light incidental to a light receiving element. CONSTITUTION:When a display 1 seen through an aperture part 7a of a housing 7 of a contactless touch switch 10 is touched by a finger or the like, with a film member 5 exposed in the aperture part 7a pressed, the film member 5 is deformed, so a back surface of the film member 5 at a finger-pressed part is tightly applied to the surface of a light conductive plate 2. Light inside the light conductive plate 2 at a part where the film member 5 is tightly applied stops total reflection, but the light is transmitted to the film member 5 side. As a result, reaching quantity of light outgoing from a light emitting element 3 to a light receiving element 4 is decreased, or eliminated at all. A voltage or the like at the light receiving element 4 is changed by the received light, so in the case where the film member 5 is tightly applied to the light conductive plate 2, it can be detected by change of an output of the light receiving element 4.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は無接点タッチスイッチに
関し、特に、意匠等を表示する表示器の前面に配置さ
れ、表示器上の意匠等にタッチすることによってオン又
はオフするようなタッチスイッチを無接点化した無接点
タッチスイッチに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contactless touch switch, and more particularly to a touch switch arranged on the front surface of a display for displaying a design or the like and turned on or off by touching the design or the like on the display. The present invention relates to a contactless touch switch that is a contactless type.

【0002】[0002]

【従来の技術】近年、意匠等を表示する表示器の表示面
の上に透明スイッチを配置し、この表示器の意匠を見な
がらこの意匠にタッチすることによってこの透明スイッ
チがオンするように構成されたタッチスイッチが実用化
されている。
2. Description of the Related Art In recent years, a transparent switch is arranged on the display surface of a display for displaying a design, etc., and the transparent switch is turned on by touching the design while looking at the design of the display. Touch switches have been put to practical use.

【0003】図3(a) は従来から多く使用されているタ
ッチスイッチ30の構成を示す構成図である。この従来
のタッチスイッチ30は、表示器31の意匠が表示され
る表面側に、透明電極32を積層した透明フィルム33
が2枚、透明電極32が対向した状態で隙間34を隔て
て平行に配置されて構成されている。この隙間34は透
明電極32の端部に配置されたスペーサ35によって確
保されており、表面側の透明フィルム33に外力が作用
しない状態では2枚の透明電極32は接触しないように
なっている。そして、それぞれの透明電極32の端部は
タッチスイッチ30のハウジング36に設けられた2つ
の端子37,38に内部で接続されており、この端子3
7,38がオンオフ制御する機器に接続される。
FIG. 3A is a configuration diagram showing a configuration of a touch switch 30 which has been widely used conventionally. This conventional touch switch 30 has a transparent film 33 in which a transparent electrode 32 is laminated on the surface side where the design of a display 31 is displayed.
Two transparent electrodes 32 are arranged parallel to each other with a gap 34 in between. This gap 34 is secured by a spacer 35 arranged at the end of the transparent electrode 32, and the two transparent electrodes 32 are prevented from contacting each other when no external force acts on the transparent film 33 on the front surface side. The end of each transparent electrode 32 is internally connected to two terminals 37 and 38 provided in the housing 36 of the touch switch 30.
7, 38 are connected to a device for on / off control.

【0004】このように構成されたタッチスイッチ30
は、図3(a) に示した状態がオフ状態であり、透明電極
32は離間状態にあって接触していない。一方、表面側
の透明フィルム33が図3(b) に示すように指F等でタ
ッチされると、表面側の透明フィルム33が撓み、この
結果、対向する透明電極32同士が接触する。この状態
がタッチスイッチ30のオン状態であり、端子37,3
8が透明電極32を介して導通する。
The touch switch 30 configured as described above
The state shown in FIG. 3A is the OFF state, and the transparent electrode 32 is in the separated state and is not in contact. On the other hand, when the transparent film 33 on the front surface side is touched with a finger F or the like as shown in FIG. 3B, the transparent film 33 on the front surface side is bent, and as a result, the transparent electrodes 32 facing each other come into contact with each other. This state is the ON state of the touch switch 30, and the terminals 37, 3
8 is conducted through the transparent electrode 32.

【0005】図4(a) は従来の別の例のタッチスイッチ
40の構成を示す構成図であり、電気接点のない無接点
構成のタッチスイッチである。この従来の無接点タッチ
スイッチ40では、ハウジング42の中に表示器41が
設けられており、この表示器41の意匠が表示される表
面側のハウジング42に開口部42aが設けられてい
る。そして、ハウジング42の内側には、この開口部4
2aを挟んで発光ダイオードのような発光素子43と、
フォトトランジスタのような受光素子44が設けられて
おり、発光素子43から出射された光が前述の開口部4
2aによって露出する表示器41の表示面近傍の光路L
を通って受光素子44に達するようになっている。この
発光素子43はハウジング42に設けられた電源端子4
5,46にそれぞれ接続しており、この電源端子45,
46には発光素子43を発光させるための電源49が接
続されるようになっている。また、受光素子44は、ハ
ウジング42に設けられた2つの端子47,48に内部
で接続されており、この端子47,48がオンオフ制御
する機器に接続される。
FIG. 4 (a) is a block diagram showing the configuration of another conventional touch switch 40, which is a contactless touch switch having no electrical contacts. In this conventional contactless touch switch 40, a display 41 is provided in a housing 42, and an opening 42a is provided in the housing 42 on the front side on which the design of the display 41 is displayed. The opening 4 is provided inside the housing 42.
A light-emitting element 43 such as a light-emitting diode across 2a,
A light receiving element 44 such as a phototransistor is provided, and the light emitted from the light emitting element 43 is used for the opening 4 described above.
Optical path L near the display surface of the display 41 exposed by 2a
To reach the light receiving element 44. The light emitting element 43 is a power supply terminal 4 provided on the housing 42.
5 and 46, respectively, and this power supply terminal 45,
A power source 49 for causing the light emitting element 43 to emit light is connected to 46. Further, the light receiving element 44 is internally connected to two terminals 47 and 48 provided on the housing 42, and these terminals 47 and 48 are connected to a device that is on / off controlled.

【0006】このように構成されたタッチスイッチ40
は、図4(a) に示した状態がオフ状態であり、発光素子
43から出射された光は、表示器41の表示面の近傍の
光路Lを通って受光素子44に到達し、受光素子44に
入射された光により、端子47,48間が導通する。一
方、無接点タッチスイッチ40のハウジング42の開口
部42aより指F等が挿入され、表示器41へのタッチ
が行われると、この挿入された指Fによって光路Lが遮
断され、発光素子43から出射された光が受光素子44
に到達しなくなる。この結果、受光素子44に光が入射
しなくなるので、端子47,48間の導通が遮断され
る。この状態が無接点タッチスイッチ40のオン状態で
ある。
[0006] The touch switch 40 configured as described above
4A is in the off state, and the light emitted from the light emitting element 43 reaches the light receiving element 44 through the optical path L near the display surface of the display 41, and the light receiving element 44 is received. The light incident on 44 causes electrical continuity between the terminals 47 and 48. On the other hand, when the finger F or the like is inserted through the opening 42a of the housing 42 of the contactless touch switch 40 and the display 41 is touched, the optical path L is blocked by the inserted finger F and the light emitting element 43 is disconnected. The emitted light is the light receiving element 44.
Will not reach. As a result, the light does not enter the light receiving element 44, and the conduction between the terminals 47 and 48 is cut off. This state is the ON state of the contactless touch switch 40.

【0007】[0007]

【発明が解決しようとする課題】しかしながら、透明電
極32を積層したフィルム33を備えた従来のタッチス
イッチ30は、フィルム33の透過率が80%とあまり
良くない上に、フィルム33に色が多少付いているの
で、表示器31の意匠が見づらく、また、対向する電極
32間に隙間が余りないので、振動等によって電極32
同士が接触すると誤動作する恐れがあるという問題点が
あった。
However, the conventional touch switch 30 provided with the film 33 having the transparent electrodes 32 laminated thereon has a transmittance of the film 33 which is not so good as 80%, and the film 33 has some color. Since it is attached, it is difficult to see the design of the display 31, and there is no gap between the electrodes 32 facing each other.
There is a problem that malfunctions may occur if they come into contact with each other.

【0008】また、従来の無接点タッチスイッチ40
は、オン時に直接表示器41の表示面にタッチするだけ
であるので、操作感が全くなく、更に、光路Lが妨げら
れるだけで、これを認識してオンと判定してしまうの
で、誤動作、誤操作する恐れがあるという問題点があ
る。
Further, the conventional contactless touch switch 40
Has no operational feeling because it simply touches the display surface of the display device 41 when it is turned on. Further, since the optical path L is only obstructed, it is recognized and determined to be on. There is a problem that there is a risk of erroneous operation.

【0009】そこで、本発明は、オン又はオフ操作時に
操作感があり、しかも電気導通接点がなく、長寿命で信
頼性の高い無接点タッチスイッチを提供することを目的
とする。
Therefore, an object of the present invention is to provide a contactless touch switch which has a feeling of operation at the time of on or off operation, has no electrical contact, and has a long life and high reliability.

【0010】[0010]

【課題を解決するための手段】前記目的を達成する本発
明の無接点タッチスイッチは、意匠等を表示する表示器
をタッチすることによってオン又はオフするタッチスイ
ッチであって、この表示器の表示面を覆う透明な導光板
と、この導光板の一方の端部に配置された発光素子と、
導光板の他方の端部に配置された受光素子と、導光板の
前面側に所定の間隙を隔てて配置され、押圧されると導
光板側に撓む、可撓性を備えた透明な膜部材とを備え、
前記透明な膜部材はこれが押圧変形によって導光板に接
触した際には、導光板内の光がこの透明な膜部材側に透
過するような材料で構成したことを特徴としている。
The non-contact touch switch of the present invention which achieves the above object is a touch switch which is turned on or off by touching an indicator for displaying a design or the like. A transparent light guide plate covering the surface, and a light emitting element arranged at one end of the light guide plate,
A light receiving element arranged at the other end of the light guide plate and a transparent transparent film which is arranged on the front surface side of the light guide plate with a predetermined gap and is bent toward the light guide plate when pressed. And a member,
The transparent film member is characterized by being made of a material that allows light in the light guide plate to be transmitted to the transparent film member side when the transparent film member comes into contact with the light guide plate due to pressure deformation.

【0011】[0011]

【作用】本発明の無接点タッチスイッチによれば、オン
又はオフ操作時の表示器へのタッチにより、表示器の表
示面側に間隙を隔てて配置された透明な膜部材が撓み、
この膜部材が導光板に接触する。そして、透明な膜部材
が透明な導光板に接触すると、導光板の一端から入射さ
れて導光板内で全反射していた光が、導光板に接触した
透明な膜部材側に逃げ、これによって導光板の他端側に
配置された受光素子への入射光が減光又は遮断される。
受光素子はこの入射光の減光又は遮断によってオン又は
オフ状態を検出することができる。この結果、オン又は
オフ操作時に操作感があり、また、電気的な接点がない
ので、長寿命、高信頼性が図れる。
According to the contactless touch switch of the present invention, the touch of the display during the on or off operation causes the transparent film member arranged with a gap on the display surface side of the display to bend.
This film member contacts the light guide plate. Then, when the transparent film member comes into contact with the transparent light guide plate, the light that is incident from one end of the light guide plate and totally reflected inside the light guide plate escapes to the side of the transparent film member that comes into contact with the light guide plate. Incident light to the light receiving element arranged on the other end side of the light guide plate is dimmed or blocked.
The light receiving element can detect the on or off state by dimming or blocking the incident light. As a result, there is a feeling of operation at the time of on or off operation, and since there is no electrical contact, long life and high reliability can be achieved.

【0012】[0012]

【実施例】以下添付図面を用いて本発明の実施例を詳細
に説明する。
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

【0013】図1(a) は電気接点のない本発明の一実施
例の無接点タッチスイッチ10の構成を示す断面図であ
る。この実施例の無接点タッチスイッチ10では、ハウ
ジング7の中に液晶パネルや発光ダイオード等で構成さ
れた表示器1が設けられており、この表示器1の意匠が
表示される表面側のハウジング7に開口部7aが設けら
れている。そして、ハウジング7の内側には、この開口
部7aを挟んで発光ダイオードのような発光素子3と、
受光素子4が設けられている。受光素子4には受けた光
の量が電圧等で検出できるものが使用され、例えば、フ
ォトトランジスタが使用される。
FIG. 1 (a) is a sectional view showing the structure of a contactless touch switch 10 according to an embodiment of the present invention having no electrical contact. In the contactless touch switch 10 of this embodiment, a display 1 composed of a liquid crystal panel, a light emitting diode or the like is provided in the housing 7, and the housing 7 on the front surface side on which the design of the display 1 is displayed. Is provided with an opening 7a. Inside the housing 7, a light emitting element 3 such as a light emitting diode is provided with the opening 7a interposed therebetween.
A light receiving element 4 is provided. As the light receiving element 4, one that can detect the amount of received light by voltage or the like is used, and for example, a phototransistor is used.

【0014】また、表示器1の意匠が表示される表面側
と、ハウジング7の開口部7aとの間の空間には、表示
器1の表示面を覆うように透明なアクリル製の導光板2
が設けられている。そして、導光板2の発光素子3に対
向する端面2Aは、発光素子3からの光が導光板2内で
全反射して他端に達するように斜めにカットされて形成
されている。一方、導光板2の受光素子4に対向する端
面2Bは、導光板2内で全反射して到達した光が効率良
く受光素子4に入射するように斜めにカットされて形成
されている。
In the space between the surface of the display 1 on which the design is displayed and the opening 7a of the housing 7, a transparent acrylic light guide plate 2 is formed so as to cover the display surface of the display 1.
Is provided. The end surface 2A of the light guide plate 2 facing the light emitting element 3 is formed by obliquely cutting so that the light from the light emitting element 3 is totally reflected in the light guide plate 2 and reaches the other end. On the other hand, the end surface 2 </ b> B of the light guide plate 2 facing the light receiving element 4 is formed by being obliquely cut so that the light which is totally reflected and reaches in the light guide plate 2 efficiently enters the light receiving element 4.

【0015】導光板2の両端面2A,2Bをカットする
角度は一般に、導光板2内の光の全反射角度以上の角度
に形成され、発光素子3はその出射光がこの斜面に垂直
に入射されるように配置され、受光素子4は導光板3の
斜面に平行に配置される。導光板2を前述のようにアク
リル板で構成した場合には、この斜面の傾斜角度はアク
リル板の全反射角である42°以上となる。
Generally, the angle at which both end surfaces 2A and 2B of the light guide plate 2 are cut is formed to be an angle equal to or larger than the total reflection angle of the light inside the light guide plate 2, and the light emitted from the light emitting element 3 is perpendicularly incident on this inclined surface. The light receiving element 4 is arranged parallel to the slope of the light guide plate 3. When the light guide plate 2 is made of an acrylic plate as described above, the inclination angle of this slope is 42 ° or more, which is the total reflection angle of the acrylic plate.

【0016】以上の構成に加えて、この実施例では導光
板2の表面側に、スペーサ6を介して導光板2の前面側
と所定の間隙(1〜2mm程度)を隔てて可撓性を備え
た透明な膜部材5が配置されている。この透明な膜部材
5は、これが押圧変形によって導光板2に接触した際に
は、導光板2内の光がこの透明な膜部材5側に透過する
ような材料で構成されており、例えば、シリコン膜が配
置されている。このシリコン膜の場合、その膜圧は 0.1
〜0.2 mm程度にすれば良い。この透明な膜部材5と導
光板2との間隙は、スイッチのストロークに応じてスペ
ーサ6の高さで設定する。また、この透明な膜部材5の
前面側は無接点タッチスイッチ10のハウジング7と面
一になるように、表示器1のハウジング7内の位置が設
定される。
In addition to the above construction, in this embodiment, the front surface of the light guide plate 2 is provided with a spacer 6 so as to be flexible with a predetermined gap (about 1 to 2 mm) from the front surface side of the light guide plate 2. The transparent film member 5 provided is arranged. The transparent film member 5 is made of a material that allows the light inside the light guide plate 2 to be transmitted to the transparent film member 5 side when the transparent film member 5 comes into contact with the light guide plate 2 due to pressure deformation. A silicon film is arranged. In the case of this silicon film, the film pressure is 0.1
It should be about 0.2 mm. The gap between the transparent film member 5 and the light guide plate 2 is set by the height of the spacer 6 according to the stroke of the switch. The position inside the housing 7 of the display 1 is set so that the front side of the transparent film member 5 is flush with the housing 7 of the contactless touch switch 10.

【0017】更に、発光素子3はハウジング7に設けら
れた電源端子11,12にそれぞれ接続しており、この
電源端子11,12には発光素子3を発光させるための
電源8が接続されるようになっている。また、受光素子
4は、ハウジング7に設けられた2つの端子13,14
に内部で接続されており、この端子13,14がオンオ
フ制御する機器に接続される。
Further, the light emitting element 3 is connected to power supply terminals 11 and 12 provided in the housing 7, and a power supply 8 for causing the light emitting element 3 to emit light is connected to the power supply terminals 11 and 12. It has become. In addition, the light receiving element 4 includes two terminals 13 and 14 provided on the housing 7.
Is internally connected to the terminals, and the terminals 13 and 14 are connected to a device for on / off control.

【0018】このように構成された無接点タッチスイッ
チ10は、この実施例においては図1(a) に示した状態
がオフ状態であり、発光素子3から出射された光は、導
光板2の端部2Aから導光板2内に入り、点線で示すよ
うに導光板2内を全反射して他方の端部2Bに達する。
図1(b) は導光板2をアクリル板2′で形成した場合
の、アクリル板2′内の全反射の様子を説明する図であ
る。アクリル板2′は、その境界面が空気である場合、
その全反射境界角θは42°である。従って、アクリル
板2′内では光が42°以上の角度で端面Tに入射され
ると、この端面Tで全反射することになる。これによ
り、前述の実施例では導光板2をアクリル板2′で構成
した場合は、図1(a) に示した導光板2の両端部2A,
2Bの傾斜角を42°以上にすれば良い。
In this embodiment, the contactless touch switch 10 thus constructed is in the off state in the state shown in FIG. 1 (a), and the light emitted from the light emitting element 3 is emitted from the light guide plate 2. The light enters the light guide plate 2 from the end 2A, and is totally reflected inside the light guide plate 2 as shown by a dotted line to reach the other end 2B.
FIG. 1 (b) is a diagram for explaining the state of total reflection in the acrylic plate 2'when the light guide plate 2 is formed of the acrylic plate 2 '. The acrylic plate 2 ', when the boundary surface is air,
The total reflection boundary angle θ is 42 °. Therefore, in the acrylic plate 2 ′, when light is incident on the end face T at an angle of 42 ° or more, the end face T is totally reflected. Accordingly, in the above-described embodiment, when the light guide plate 2 is composed of the acrylic plate 2 ', both ends 2A of the light guide plate 2 shown in FIG.
The inclination angle of 2B may be 42 ° or more.

【0019】一方、無接点タッチスイッチ10のハウジ
ング7の開口部7aから見える表示器1に指F等でタッ
チが行われて、この開口部7aに露出する膜部材5が押
圧されると、膜部材5が図2(a) に示すように撓み、指
Fに押された部分の膜部材5の裏面が導光板2の表面に
密着する。すると、膜部材5が密着した部分の導光板2
内の光が全反射しなくなり、光が膜部材5側に透過す
る。この結果、発光素子3から出射された光の受光素子
4に到達する量が減少又は光が到達しなくなる。受光素
子4は前述のように受光した光で電圧等が変化するの
で、膜部材5が導光板2に密着した場合にはこれを受光
素子4の出力の変化で検出することができる。
On the other hand, when a finger F or the like touches the display 1 visible from the opening 7a of the housing 7 of the contactless touch switch 10 and the film member 5 exposed in the opening 7a is pressed, the film is formed. The member 5 bends as shown in FIG. 2 (a), and the back surface of the film member 5 at the portion pressed by the finger F comes into close contact with the front surface of the light guide plate 2. Then, the light guide plate 2 in the portion where the film member 5 is in close contact
The light inside is not totally reflected, and the light is transmitted to the film member 5 side. As a result, the amount of light emitted from the light emitting element 3 reaching the light receiving element 4 is reduced or the light does not reach. Since the voltage and the like of the light receiving element 4 are changed by the received light as described above, when the film member 5 is in close contact with the light guide plate 2, this can be detected by the change in the output of the light receiving element 4.

【0020】図2(b) は導光板2をアクリル板2′で形
成し、膜部材5をシリコン膜5′で形成した場合の、ア
クリル板2′内の光の反射の様子を説明する図である。
アクリル板2′は、その境界面がシリコン膜5′である
場合、その全反射境界角θである42°で光が入射され
ても入射光は全反射せず、その一部が図2(b) に破線で
示すようにシリコン膜5′側に漏れる。従って、アクリ
ル板2′内では光が42°以上の角度で端面Tに入射さ
れても、この端面Tで反射する光の量は減少することな
る。これにより、前述の実施例では導光板2をアクリル
板2′で構成し、膜部材5をシリコン膜5′で構成した
場合は、導光板2の端部2Bに届く光が大きく減少す
る。
FIG. 2 (b) is a diagram for explaining how light is reflected in the acrylic plate 2'when the light guide plate 2 is made of the acrylic plate 2'and the film member 5 is made of the silicon film 5 '. Is.
When the boundary surface of the acrylic plate 2'is the silicon film 5 ', the incident light is not totally reflected even when the light is incident at 42 ° which is the total reflection boundary angle θ, and a part thereof is shown in FIG. It leaks to the silicon film 5'side as indicated by the broken line in b). Therefore, even if light is incident on the end face T at an angle of 42 ° or more in the acrylic plate 2 ', the amount of light reflected by the end face T is reduced. As a result, when the light guide plate 2 is made of the acrylic plate 2'and the film member 5 is made of the silicon film 5'in the above-described embodiment, the light reaching the end portion 2B of the light guide plate 2 is greatly reduced.

【0021】なお、この実施例の無接点タッチスイッチ
10では、膜部材5をシリコン膜5′で形成した場合、
シリコン膜5′の反発力及び、シリコン膜5′がアクリ
ル板2′に当接した場合の感触が指F等に返るので、ス
イッチ操作した操作感が良く分かる。また、この実施例
においては、前述のように膜部材5が導光板2に密着し
た場合に、受光素子4に届く光を減光又は遮断すること
でスイッチのオン状態を検出するようにしたが、これは
逆に膜部材5が導光板2に密着した時、スイッチがオフ
状態を検出するように構成しても良いのは勿論である。
In the contactless touch switch 10 of this embodiment, when the film member 5 is formed of the silicon film 5 ',
Since the repulsive force of the silicon film 5'and the feeling when the silicon film 5'abuts on the acrylic plate 2'are returned to the finger F or the like, the operation feeling of the switch operation can be clearly understood. Further, in this embodiment, when the film member 5 is in close contact with the light guide plate 2 as described above, the ON state of the switch is detected by dimming or blocking the light reaching the light receiving element 4. Of course, on the contrary, when the film member 5 is in close contact with the light guide plate 2, the switch may detect the off state.

【0022】この発明は前述のように膜部材5が導光板
2に密着した場合に、受光素子4に届く光を減光又は遮
断することでスイッチのオン又はオフ状態を検出してい
るので、振動等によって膜部材5が導光板2に接触した
程度では受光素子4に届く光の量は変わらず、誤動作す
る可能性が少なく、信頼性が高い。また、電気的接点が
ないので長寿命である。
According to the present invention, when the film member 5 is in close contact with the light guide plate 2 as described above, the switch ON or OFF state is detected by dimming or blocking the light reaching the light receiving element 4. Even if the film member 5 contacts the light guide plate 2 due to vibration or the like, the amount of light reaching the light receiving element 4 does not change, and there is little possibility of malfunctioning and reliability is high. In addition, since it has no electrical contacts, it has a long life.

【0023】[0023]

【発明の効果】以上説明したように本発明の無接点タッ
チスイッチは、オン又はオフ操作時に操作感があり、し
かも電気導通接点がなく、長寿命で信頼性が高いという
効果がある。
As described above, the contactless touch switch of the present invention has an operation feeling when being turned on or off, has no electrical contact, and has a long service life and high reliability.

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

【図1】(a) は本発明の一実施例のタッチスイッチの構
成を示す断面図、(b) は(a) の導光板内を通る光の空気
との端面における全反射を説明する説明図である。
FIG. 1A is a cross-sectional view showing the configuration of a touch switch according to an embodiment of the present invention, and FIG. 1B is an explanatory view for explaining the total reflection at the end face of light passing through the light guide plate in FIG. It is a figure.

【図2】図1(a) のタッチスイッチがタッチされてオン
した状態を説明する断面図、(b) は(a) の導光板内を通
る光が、導光板に膜部材が接触した時にこの膜部材側に
透過する様子を説明する説明図である。
FIG. 2 is a cross-sectional view illustrating a state where the touch switch of FIG. 1 (a) is touched and turned on, and FIG. 2 (b) is a diagram of light passing through the inside of the light guide plate of (a) when the film member contacts the light guide plate. It is explanatory drawing explaining the mode which permeate | transmits to this membrane member side.

【図3】(a) は従来のタッチスイッチの一例の構成を示
す構成図、(b) は(a) の透明スイッチがタッチされてオ
ンした状態を説明する断面図である。
3A is a configuration diagram showing an example of a configuration of a conventional touch switch, and FIG. 3B is a cross-sectional view illustrating a state where the transparent switch of FIG. 3A is touched and turned on.

【図4】(a) は従来のタッチスイッチの別の例の構成を
示す構成図、(b) は(a) の透明スイッチがタッチされて
オンした状態を説明する断面図である。
4A is a configuration diagram showing a configuration of another example of a conventional touch switch, and FIG. 4B is a sectional view illustrating a state in which the transparent switch of FIG. 4A is touched and turned on.

【符号の説明】[Explanation of symbols]

1 表示器 2 導光板 2′ アクリル板 2A,2B 端部 3 発光素子 4 受光素子 5 膜部材 5′ シリコン膜 6 スペーサ 7 ハウジング 7a 開口部 10 一実施例の無接点タッチスイッチ 11,12 電源端子 13,14 端子 DESCRIPTION OF SYMBOLS 1 Display 2 Light guide plate 2'Acrylic plate 2A, 2B Edge part 3 Light emitting element 4 Light receiving element 5 Film member 5'Silicone film 6 Spacer 7 Housing 7a Opening part 10 Non-contact touch switch 11 and 12 Power supply terminal 13 , 14 terminals

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 意匠等を表示する表示器(1) をタッチす
ることによってオン又はオフするタッチスイッチであっ
て、 この表示器(1) の表示面を覆う透明な導光板(2) と、 この導光板(2) の一方の端部(2A)に配置された発光素子
(3) と、 導光板(2) の他方の端部(2B)に配置された受光素子(4)
と、 導光板(2) の前面側に所定の間隙を隔てて配置され、押
圧されると導光板(2)側に撓む、可撓性を備えた透明な
膜部材(5) とを備え、 前記透明な膜部材(5) はこれが押圧変形によって導光板
(2) に接触した際には、導光板(2) 内の光がこの透明な
膜部材(5) 側に透過するような材料で構成したことを特
徴とする無接点タッチスイッチ。
1. A touch switch which is turned on or off by touching a display device (1) for displaying a design or the like, and a transparent light guide plate (2) covering a display surface of the display device (1), Light-emitting element placed at one end (2A) of this light guide plate (2)
(3) and the light receiving element (4) arranged at the other end (2B) of the light guide plate (2)
And a transparent transparent film member (5) which is arranged on the front surface side of the light guide plate (2) with a predetermined gap and bends toward the light guide plate (2) when pressed. The transparent film member (5) is a light guide plate due to pressure deformation.
A contactless touch switch, characterized in that, when it comes into contact with (2), the light in the light guide plate (2) is transmitted to the transparent film member (5) side.
JP1264194A 1994-02-04 1994-02-04 Contactless touch switch Pending JPH07220592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1264194A JPH07220592A (en) 1994-02-04 1994-02-04 Contactless touch switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1264194A JPH07220592A (en) 1994-02-04 1994-02-04 Contactless touch switch

Publications (1)

Publication Number Publication Date
JPH07220592A true JPH07220592A (en) 1995-08-18

Family

ID=11810999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1264194A Pending JPH07220592A (en) 1994-02-04 1994-02-04 Contactless touch switch

Country Status (1)

Country Link
JP (1) JPH07220592A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003086933A1 (en) * 2002-04-16 2003-10-23 Toshiba Elevator Kabushiki Kaisha Elevator push button
JP2008135904A (en) * 2006-11-28 2008-06-12 Smk Corp Remote control transmitter
JP2011009220A (en) * 2009-06-24 2011-01-13 Lg Innotek Co Ltd Key pad using light guide pad
KR20110017239A (en) * 2009-08-13 2011-02-21 엘지이노텍 주식회사 Touch type key input bar
WO2013101076A1 (en) * 2011-12-29 2013-07-04 Intel Corporation Control panels

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003086933A1 (en) * 2002-04-16 2003-10-23 Toshiba Elevator Kabushiki Kaisha Elevator push button
CN1310819C (en) * 2002-04-16 2007-04-18 东芝电梯株式会社 Push button switch for elevator
JP2008135904A (en) * 2006-11-28 2008-06-12 Smk Corp Remote control transmitter
JP2011009220A (en) * 2009-06-24 2011-01-13 Lg Innotek Co Ltd Key pad using light guide pad
KR20110017239A (en) * 2009-08-13 2011-02-21 엘지이노텍 주식회사 Touch type key input bar
WO2013101076A1 (en) * 2011-12-29 2013-07-04 Intel Corporation Control panels
CN104024022A (en) * 2011-12-29 2014-09-03 英特尔公司 Control panels
US9302679B2 (en) 2011-12-29 2016-04-05 Intel Corporation Control panels
CN104024022B (en) * 2011-12-29 2017-04-12 英特尔公司 Control panels

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