JPH01150192A - Touch input apparatus - Google Patents
Touch input apparatusInfo
- Publication number
- JPH01150192A JPH01150192A JP62310194A JP31019487A JPH01150192A JP H01150192 A JPH01150192 A JP H01150192A JP 62310194 A JP62310194 A JP 62310194A JP 31019487 A JP31019487 A JP 31019487A JP H01150192 A JPH01150192 A JP H01150192A
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical sensor
- display device
- display
- touch input
- 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
- 230000003287 optical effect Effects 0.000 abstract description 25
- 238000010586 diagram Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004148 unit process Methods 0.000 description 1
Landscapes
- Position Input By Displaying (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、タッチ入力装置に関し、特に、表示デバイス
部の表示面側ではなく裏面側で入力座標を検出すること
により、表示デバイス部の表示面側に加工、もしくは付
加ユニットの取付をほどこさずに実現可能な光学式タッ
チ入力装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a touch input device, and in particular, the present invention relates to a touch input device, and in particular, the display of the display device section is improved by detecting input coordinates on the back side of the display device section rather than on the display surface side. The present invention relates to an optical touch input device that can be realized without processing the surface side or attaching an additional unit.
従来、この種のタッチ入力装置は、大別して、抵抗膜式
、静電式、音響式、光学式などがあり、特に光学式にお
いては、表示デバイス表示面側の枠に発光素子・受光素
子を配列し、発光素子により表示デバイス上を表示面と
平行に光が通り、その光をタッチ入力によりしゃ断され
たがどうかを受光表示がセンスすることにより座標を検
出していた。Conventionally, this type of touch input device can be broadly classified into resistive type, electrostatic type, acoustic type, optical type, etc. Especially in the optical type, a light emitting element and a light receiving element are installed in a frame on the display surface side of a display device. Coordinates were detected by the light-emitting elements passing light across the display device parallel to the display surface, and the light-receiving display sensed whether the light was interrupted by a touch input.
上述した従来の光学式タッチ人装置は、表示デバイス表
面上を通る光を検出するので、表示デバイスの枠の部分
が突起し、次の様な欠点があった。Since the conventional optical touch human device described above detects light passing on the surface of the display device, the frame portion of the display device protrudes, resulting in the following drawbacks.
（イ）表示デバイス部表面はフラットであっても枠が突
起するので、装置の表示面側がフラットな、装置を作る
ことができな
い。(a) Even if the display device surface is flat, the frame protrudes, making it impossible to create a device with a flat display surface.
（ロ）表示面は汚れていなくても枠の部分（フロントマ
スク、又はベゼル）が汚れた
ら、入力不可となることがある。(b) Even if the display surface is not dirty, if the frame (front mask or bezel) is dirty, input may not be possible.
（ハ）表示デバイス部の枠の部分（フロントマスク、又
はベゼル）が必要な為装置のデザイン上制約を受ける。(c) Since a frame portion (front mask or bezel) of the display device section is required, there are restrictions on the design of the device.
本発明のタッチ入力装置は、光の透過、反射により表示
を可視できる表示デバイス部と、その表示デバイス部に
対し、位置的に表示面側と反対の位置、つまり表示デバ
イス裏側に発光素子と光センサ素子を交互に二次元的に
配列した光センサ部とを有している。The touch input device of the present invention includes a display device part that can make a display visible by transmitting and reflecting light, and a light emitting element and a light emitting element located at a position opposite to the display surface side of the display device part, that is, on the back side of the display device. It has an optical sensor section in which sensor elements are arranged alternately in a two-dimensional manner.
次に本発明の実施例について図面を参照して説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例であるタッチ入力装置の原理
を示す。第１図において、本発明の一実施例は液晶など
の光透過性の表示デバイス部１゜と、発光素子２１．２
２及び、光センサ素子３１．３２を有する光センサ部４
０とを含む。この先センサ部２０は表示デバイス表示面
のある部分をタッチすると、その部分に対応する発光素
子２１の出した光が表示デバイス部１０を通り抜はタッ
チした指等の物体で反射し、光センサ素子３１がその反
射光を検出する。タッチしていない部分に対応する発光
素子２２の出した光は反射せずに外部に出るので光セン
サ素子３２は光を検出しない。FIG. 1 shows the principle of a touch input device that is an embodiment of the present invention. In FIG. 1, one embodiment of the present invention includes a light-transmissive display device portion 1° such as a liquid crystal, and a light emitting element 21.2.
2 and an optical sensor section 4 having optical sensor elements 31 and 32.
Including 0. When the sensor section 20 touches a certain part of the display surface of the display device, the light emitted by the light emitting element 21 corresponding to that part passes through the display device section 10 and is reflected by the touched object such as a finger, and the light sensor element 31 detects the reflected light. The light emitted by the light emitting element 22 corresponding to the untouched area is not reflected and exits to the outside, so the optical sensor element 32 does not detect the light.
第２図は本実施例の光センサ部を示す。第２図において
、光センサ部４０は発光素子２０と光センサ素子３０を
交互に２次元的に配列され、第３図に示すように表示デ
バイス部１０の裏面に平行に近接して設置する。ハウジ
ング５０は本タッチ入力装置を含め装置を指示するもの
である。液晶などの表示デバイス部１０に表示された内
容により操作者が特定の部分にタッチすると、光センサ
部４０の対応する特定の部分に配置されている特定の光
センサ素子のみが受光の増大したのを検出する。この受
光の増大を検知した光センサ素子の存在する座標がタッ
チ入力された座標であると判断する。FIG. 2 shows the optical sensor section of this embodiment. In FIG. 2, the optical sensor section 40 has light emitting elements 20 and optical sensor elements 30 arranged alternately in two dimensions, and is installed parallel to and close to the back surface of the display device section 10, as shown in FIG. The housing 50 directs the device including the present touch input device. When the operator touches a specific part based on the content displayed on the display device section 10 such as a liquid crystal, only the specific photosensor element disposed in the corresponding specific part of the photosensor section 40 increases the amount of light received. Detect. It is determined that the coordinates where the optical sensor element that detected this increase in light reception exists are the coordinates where the touch input was made.
第４図は本実施例の機能ブロック図であり、本実施例の
データ処理部６０が表示デバイス部１０に表示内容及び
表示を指示する。またデータ処理部６０は光センサ部４
０から、受光の増大を検知した光センサ素子の存在する
座標を取り込みタッチ入力座標としてデータ処理を行う
。尚、画面表示内容を変えた時も表示内容に合わせて受
光の増大を検知する光センサもあられれると思われるが
、データ処理部は表示変更指示直後のデータはタッチ入
力データではないとして処理する必要がある。FIG. 4 is a functional block diagram of this embodiment, in which the data processing section 60 of this embodiment instructs the display device section 10 to display contents and display. The data processing section 60 also includes the optical sensor section 4.
From 0, the coordinates of the optical sensor element that detected the increase in light reception are taken in and data processing is performed as the touch input coordinates. Furthermore, even when the screen display content is changed, there may also be an optical sensor that detects an increase in light reception according to the display content, but the data processing unit processes the data immediately after the display change instruction is not touch input data. There is a need.
また、照明等からの外来光の量が変化したときもタッチ
入力と認識しない様に多くの光センサが受光の増大を検
知したときは、無視するとか、あるいは、特定波長の光
や特定周期で断続する発光素子を使用し光センサ部に、
外来光か発光素子の反射光か識別させる機能をもたせる
ことにより誤入力を排除することができる。Also, when the amount of extraneous light from lighting etc. changes, many optical sensors do not recognize it as a touch input, so when they detect an increase in the amount of light received, they ignore it, or they ignore it when they detect an increase in the amount of light they receive. The optical sensor uses an intermittent light emitting element,
Erroneous input can be eliminated by providing a function to distinguish between external light and reflected light from a light emitting element.
以上説明したように本発明は以下のような優れた効果を
有する。As explained above, the present invention has the following excellent effects.
（イ）装置の表示面がフラットとなり、特に専用車に表
示面を上向きにうめ込んで設置する場合、卓上スペース
を有効に使用できる。(a) The display surface of the device is flat, and desk space can be used effectively, especially when installed in a special vehicle with the display surface facing upward.
（ロ）汚れ、はこりの付着等による誤入力は、表示部表
面に限るので操作者が見やすい様に表示部さえ清掃して
おけば、本誤入力は起きない。(b) Erroneous input due to dirt, flakes, etc. is limited to the surface of the display, so if the display is cleaned so that it is easy for the operator to see, this erroneous input will not occur.
（ハ）表示デバイス部の枠の部分（フロントマスク、又
はベゼル〉が不要な為装置のデザイン上制約を受けない
。(c) Since the frame portion (front mask or bezel) of the display device section is unnecessary, there are no restrictions on the design of the device.
（ニ）発光素子を選定することにより液晶などの光透過
表示デバイスのバックライトとしての機能も実現できる
。(d) By selecting a light-emitting element, it is possible to realize a function as a backlight for a light-transmissive display device such as a liquid crystal.
第１図は本発明の一実施例であるタッチ入力装置の原理
を示す図、第２図は本実施例における発光素子と光セン
サ素子を２次元的に配列した光センサ部を示す図、第３
図は本発明の一実施例を示す図、第４図は本実施例にお
ける機能ブロックを示す図である。
１０・・・表示デバイス部、２１．２２・・・発光素子
、３０，３１．３２・・・光センサ素子、４０・・・光
センサ部、５０・・・ハウジング、６０・・・データ処
理部。FIG. 1 is a diagram showing the principle of a touch input device that is an embodiment of the present invention, and FIG. 3
The figure shows one embodiment of the present invention, and FIG. 4 is a diagram showing functional blocks in this embodiment. DESCRIPTION OF SYMBOLS 10... Display device section, 21.22... Light emitting element, 30, 31.32... Optical sensor element, 40... Optical sensor section, 50... Housing, 60... Data processing section .
Claims (1)
と、その表示デバイス部に対し位置的に表示面側と反対
の位置に発光素子と光センサ素子をそれぞれ２次元的に
配置した光センサ部とを備え、前記表示デバイス部の表
示面にタッチすることにより、前記発光素子の光が、タ
ッチによりふさがれた部分で反射し、その光の暗さを前
記光センサ素子が検出することによりタッチされた座標
を認識することを特徴とするタッチ入力装置。A display device part that can make a display visible by transmitting and reflecting light, and a photosensor part in which a light emitting element and a photosensor element are two-dimensionally arranged at positions opposite to the display surface side with respect to the display device part. When the display surface of the display device section is touched, the light from the light emitting element is reflected by the area covered by the touch, and the light sensor element detects the darkness of the light, thereby causing the light to be touched. A touch input device characterized by recognizing coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62310194A JPH01150192A (en) | 1987-12-07 | 1987-12-07 | Touch input apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62310194A JPH01150192A (en) | 1987-12-07 | 1987-12-07 | Touch input apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01150192A true JPH01150192A (en) | 1989-06-13 |
Family
ID=18002302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62310194A Pending JPH01150192A (en) | 1987-12-07 | 1987-12-07 | Touch input apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01150192A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0354991U (en) * | 1989-10-03 | 1991-05-28 | ||
| WO2004088496A1 (en) * | 2003-03-31 | 2004-10-14 | Toshiba Matsushita Display Technology Co., Ltd. | Display device and information terminal device |
| JP2005339444A (en) * | 2004-05-31 | 2005-12-08 | Toshiba Matsushita Display Technology Co Ltd | Display device |
| JP2007323660A (en) * | 2007-06-25 | 2007-12-13 | Sony Corp | Drawing device and drawing method |
| JP2010055219A (en) * | 2008-08-26 | 2010-03-11 | Sharp Corp | Input device, input system, display device, and mobile phone |
| WO2012020594A1 (en) * | 2010-08-09 | 2012-02-16 | アルプス電気株式会社 | Input device |
| JP2016503529A (en) * | 2012-10-15 | 2016-02-04 | イソルグ | Mobile device with display screen and user interface device |
| US9898140B2 (en) | 2012-04-11 | 2018-02-20 | Commissariat à l'énergie atomique et aux énergies alternatives | User interface device having transparent electrodes |
| US10203811B2 (en) | 2012-09-12 | 2019-02-12 | Commissariat A L'energie Atomique Et Aux Energies | Non-contact user interface system |
-
1987
- 1987-12-07 JP JP62310194A patent/JPH01150192A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0354991U (en) * | 1989-10-03 | 1991-05-28 | ||
| WO2004088496A1 (en) * | 2003-03-31 | 2004-10-14 | Toshiba Matsushita Display Technology Co., Ltd. | Display device and information terminal device |
| KR100781483B1 (en) * | 2003-03-31 | 2007-12-03 | 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 | Display device |
| US7522149B2 (en) | 2003-03-31 | 2009-04-21 | Toshiba Matsushita Display Technology Co., Ltd. | Display device and information terminal device |
| JP2005339444A (en) * | 2004-05-31 | 2005-12-08 | Toshiba Matsushita Display Technology Co Ltd | Display device |
| JP4513830B2 (en) * | 2007-06-25 | 2010-07-28 | ソニー株式会社 | Drawing apparatus and drawing method |
| JP2007323660A (en) * | 2007-06-25 | 2007-12-13 | Sony Corp | Drawing device and drawing method |
| JP2010055219A (en) * | 2008-08-26 | 2010-03-11 | Sharp Corp | Input device, input system, display device, and mobile phone |
| WO2012020594A1 (en) * | 2010-08-09 | 2012-02-16 | アルプス電気株式会社 | Input device |
| KR101247063B1 (en) * | 2010-08-09 | 2013-03-25 | 알프스 덴키 가부시키가이샤 | Input device |
| US9898140B2 (en) | 2012-04-11 | 2018-02-20 | Commissariat à l'énergie atomique et aux énergies alternatives | User interface device having transparent electrodes |
| US10203811B2 (en) | 2012-09-12 | 2019-02-12 | Commissariat A L'energie Atomique Et Aux Energies | Non-contact user interface system |
| JP2016503529A (en) * | 2012-10-15 | 2016-02-04 | イソルグ | Mobile device with display screen and user interface device |
| US10126933B2 (en) | 2012-10-15 | 2018-11-13 | Commissariat à l'Energie Atomique et aux Energies Alternatives | Portable appliance comprising a display screen and a user interface device |
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