JP2012084145A - タッチシステム及び認識方法 - Google Patents
タッチシステム及び認識方法 Download PDFInfo
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- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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- H01L31/08—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors
- H01L31/10—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors characterised by potential barriers, e.g. phototransistors
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
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Abstract
【解決手段】タッチシステムは、画素素子内の複数の感光性要素に統合され、光入力によって少なくともタッチ位置を表示でき、それがタッチされた時、信号データを提供するタッチパネル、前記信号データを受信するように構成され、且つ前記信号データ及び変換パラメータに基づいて信号値を発生する変換ユニット、及び前記信号値が所定値より小さい時、特定の動作を実行する処理ユニットを含む読み出し回路を有する。変換ユニットは信号データおよび変換パラメータに基づいた信号を生成する。処理ユニットは信号値が所定の値より低いとき特定の動作を実行する。
【選択図】図4
Description
図8を参照すると、図8はフォトセンサの特性ダイアグラムであり、表示モニタによって検出されたフォトセンサの光応答とモニタの動作時間との間の関係を表している。背景光は、信号応答が入力された光信号の強弱を判定するのに十分敏感であるように出力電圧を安定したレベルに保持する。曲線81は、環境光の一定の照明条件において測定された一連の検出信号によって構成されており、表示装置の動作時間の増加に伴って、表示装置のフォトセンサアレイから発生された検出信号が低下する。タッチパネルの老化が生じた時、位置座標のバックグランド情報を含む検出信号は、不正確である可能性があり、それにより、有効な入力信号が無視される。
本発明は、添付の図面に関連付けた下記の詳細な説明と実施例を関連付けることによって、より完全に理解されることができる。
14−1 感光性トランジスタ
14−G ゲートライン
14−D データライン
24 感光性トランジスタアレイ
24−1 感光性トランジスタ
24−2 スイッチングトランジスタ
24−G ゲートライン
24−D データライン
34 感光性トランジスタアレイ
34−1 感光性トランジスタ
34−2 スイッチングトランジスタ
34−G ゲートライン
34−D データライン
40 タッチシステム
41 表示装置
42 ホスト装置
43 タッチパネル
45 制御モジュール
47 変換ユニット
49 処理ユニット
50 タッチシステム
51 感光性のトランジスタアレイ
52−1〜52−N 電流電圧コンバータ
53 読み出し回路
54 機能ユニット
55 増幅ユニット
56 変換ユニット
57 処理ユニット
58 タイミング発生器
Claims (15)
- 画素素子内の複数の感光性要素に統合され、光入力によって少なくともタッチ位置を表示できるタッチパネルであって、当該タッチパネルがタッチされた時、信号データを提供するタッチパネル、
前記信号データを受信するように構成され、前記信号データ及び変換パラメータに基づいて信号値を発生する変換ユニット、及び前記信号値が所定値より小さい時、特定の動作を実行する処理ユニットを含む読出回路を具備する、タッチシステム。 - 前記信号データは、アナログフォームであり、前記信号値はデジタルフォーマットである請求項1に記載のタッチシステム。
- 前記特定の動作は、前記変換パラメータを調整することである請求項1に記載のタッチシステム。
- 前記特定の動作は、フィードバックを変換ユニットに出力することであり、前記フィードバックは、オフセットまたはゲイン値である請求項1に記載のタッチシステム。
- 前記特定の動作は、フィードバックを変換ユニットに出力することであり、前記フィードバックは、前記タッチパネルの寿命の制限された範囲内にある請求項1に記載のタッチシステム。
- 前記信号データは、環境光のバックグラウンド成分及び光入力の光コンポーネントを含む請求項1に記載のタッチシステム。
- ユーザーによって光入力を検出する複数の感光性要素を含む光入力式のタッチパネルの認識方法であって、
前記光入力式のタッチパネルの光のレベルを表す信号値を提供するステップ、前記信号値と所定値を比較するステップ、及び
前記信号値が前記所定値より小さい時、特定の動作を実行するステップを
含む認識方法。 - 前記信号値が前記所定値より小さい時、前記信号値と前記所定値との間の校正値を記録するステップを更に含む、請求項7に記載の認識方法。
- 前記信号値は、前記光入力式のタッチパネルに組み込まれた素子によって検出された光コンポーネントを含む、請求項7に記載の認識方法。
- 命令を返信し、次の命令を受信するまで、前記信号値と前記所定値との間の差値に従って次の信号値をシフトさせるステップを更に含む、請求項8に記載の認識方法。
- 前記命令は、前記光入力式のタッチパネルの制限された範囲内にある、請求項10に記載の認識方法。
- 前記光のレベルは、光入力のない環境光の照明である、請求項7に記載の認識方法。
- 暗条件の情報に基づいた前記所定値を規定するステップを更に含む、請求項7に記載の認識方法。
- 前記所定値が前記信号値より大きい時、前記信号値を破棄し、前記所定値と前記選択された信号値との差値に基づき次の信号値をシフトさせるステップを更に含む請求項8に記載の認識方法。
- 前記信号値を前記ホスト装置に出力するステップを更に含む、請求項7に記載の認識方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/899,349 US8344313B2 (en) | 2005-10-07 | 2010-10-06 | Optical input type touch system and feedback control method thereof |
US12/899,349 | 2010-10-06 |
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JP2012084145A true JP2012084145A (ja) | 2012-04-26 |
JP5364934B2 JP5364934B2 (ja) | 2013-12-11 |
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US (1) | US8344313B2 (ja) |
EP (1) | EP2439618A3 (ja) |
JP (1) | JP5364934B2 (ja) |
KR (1) | KR101336695B1 (ja) |
CN (1) | CN102446037B (ja) |
TW (1) | TWI442288B (ja) |
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2010
- 2010-10-06 US US12/899,349 patent/US8344313B2/en active Active
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2011
- 2011-09-09 EP EP11180661.8A patent/EP2439618A3/en not_active Withdrawn
- 2011-09-23 KR KR1020110096222A patent/KR101336695B1/ko active IP Right Grant
- 2011-09-26 TW TW100134517A patent/TWI442288B/zh not_active IP Right Cessation
- 2011-09-29 CN CN201110294094.4A patent/CN102446037B/zh not_active Expired - Fee Related
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JP2010198601A (ja) * | 2009-01-30 | 2010-09-09 | Sony Corp | 情報入力装置、情報入出力装置および電子機器 |
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JP5364934B2 (ja) | 2013-12-11 |
EP2439618A2 (en) | 2012-04-11 |
CN102446037A (zh) | 2012-05-09 |
CN102446037B (zh) | 2016-08-03 |
US20110018834A1 (en) | 2011-01-27 |
TWI442288B (zh) | 2014-06-21 |
TW201224894A (en) | 2012-06-16 |
KR101336695B1 (ko) | 2013-12-04 |
KR20130052756A (ko) | 2013-05-23 |
US8344313B2 (en) | 2013-01-01 |
EP2439618A3 (en) | 2013-06-26 |
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