201007533 九、發明說明： 【發明所屬之技術領域】 本發明係關於-種電容式觸控面板的_方法，特別是關 於一種抗雜訊的多觸碰物偵測方法。 【先前技術】 電容式觸控面板是藉由手指(觸碰物)的帶電特性來進行 ❹ ㈣的輸人裝置。當触細顧馳破，或者在觸碰面板 上滑動時，觸控面板上的電容量即會發生改變，藉由細此電 容量改變的技術，即可計算出代表觸碰物的游標移動量。因為 電容式觸控面板的厚度較薄’所以能設計於較薄的筆記型電 腦、鍵盤、數位播放器等等裝置中。 第1圖係為習知的二維電容式觸控面板1〇〇，其包括有： 面板102、丫軸感應層104、絕緣層106、X轴感應層彳08及 ❹ 底板110。當手指112觸碰到面板102時，其所觸碰的位置將 會有相應的電容量改變，亦即，形成—錢量。鱗接觸控面 板100的控制電路可將觸控面板上的電容量之改變轉換為感 ,ν«量如第2圖所示，藉由對此感應量的偵測，即可判_ 的位置、娜量及軸財向。 ^ 在驾知技術令，要確認觸碰物是否觸碰電容式觸控面板 100係以偵測到的感應量大小作為判斷的依據，如第3工圖所 不田感應量大於臨界值th日夺，表示觸碰物碰觸觸控面板 5 201007533 100 ’反之w感應量小賊界值th時，表示觸碰物離開觸控 面板1〇〇或是觸控面板100上沒有觸碰物存在。 然而觸控面板Ί00可能受到如手機等無線裝置信號的 干擾而產生雜訊，使觸控面板誤财觸碰物在其上進行 觸极、點擊、移動或其他的手勢操作。第4A圖係在觸控面板 100上所產生的雜訊示例’該雜訊經類比數位轉換…叫得到 感應量如第4B圖所不者，最後再經取樣得到第4C圖的波 ❹ 形圖。這樣的波形圖類似兩隻手指觸碰觸控面板1〇〇時所產 生的波形圖，如第5圖所示者。因此第4Α圖的雜訊可能被誤 判為兩隻手指觸碰觸控面板1〇〇，造成錯誤的操作。 因此，如何開發能夠防止雜訊干擾的侧方法，成為觸控 面板技術開發的重點。 【發明内容】 鑑於以上習知技術的問題，本發明提供-種電容式觸和而 板的細碰物_方法，其目的在於避免雜訊的干擾而導致觸 碰物觸碰之誤判。 為達上述目的’本發明提供一種電容式觸控面板的多觸碰 物侧方法：藉由設定至少一預設時間來辨別觸控面板上的感 應量變化是雜觸細碰物麵控面板上操作，以正確判斷觸 碰物觸碰或離開觸控面板，進而準確地偵測各種不同手勢的操 201007533 【實施方式】 當多觸碰物觸碰_控面板時，會有相應的感應量的改 變藉由追縱多個感應量的改變，即可進行多觸碰物的谓測； 纟且’藉域應量的改變趨勢，可以確認料真正的觸碰物觸 碰’而非雜訊所造成。本發明將分別針對以下幾種情形說明本 發明之方法’包括·· A.多觸碰物的觸碰確認；B多觸碰物手勢 翻之確認；C.多觸碰物的軸顧；D.乡觸碰物手勢之離開 確認；E·多觸碰物單擊手勢(丁叩如㈣的侧；f多觸碰 物雙擊手勢(Double Tap)的偵測方法；G·多觸碰物拖复手勢 (Drag Gesture)的债測方法。以下，分別說明之： A.確§忍多觸碰物觸碰的债測方法 觸碰物的觸碰對於觸控面板來說，多半不會忽然出現，或 者忽然消失；亦即，在觸控面板上形成感應量的突然出現或消 失在觸控面板上的感應量改變，會有一些既定的趨勢存在， ❹ 並且，有一定的數值穩定性。第4A圖的雜訊，一般來講，並 無趨勢可言。此感應量的改變趨勢，即可進行多觸碰物的 觸碰偵測確認。 請參考第6圖’其為兩個觸碰物觸碰到觸控面板上的感應 量變化示範例，其說明了感應量的兩個峰值均小於臨界值出 後所_到的感應量變化，其中，其為某條γ軸感絲對應 的的X軸值，計有八個點，分別為x〇, X1，Χ2, Χ3, Χ4, χ5ι χ6> 7 201007533 X7。曲線2G2係為此次所偵酬的感應量，曲線2㈤則為前 一次所侧到的感應量。第7圖係第6圖中兩次感應量每點的 差值(點X(W的這次_應量減去上—次的感應量），亦即， 點感應量差值dV ’第8 _示_信號204的波形圖。請參 考第6圖、第7圖及第8圖’麵_控面板上的錢量時， 當所债測到的感應量的兩個峰值均小於臨界值巾時(如第6 圖），偵測信號204由低準位轉為高準位(如第8圖）。接著在 時間TD__tW續細觸控面板上的感應量，並將此次所 摘測到的感應量202減去前—次的感測量2㈤，得到如第7 圖的感應量差值dV ’若在時間TD_Detect内所得到的點感應量 差值dV均為貞值’即表示有蝴碰物觸碰觸控面板。 其中感應量的每-個峰值係對應一觸碰物，因此，在其他 實施例中’如果有兩他上_鋪觸碰驗面板時，該感應 罝將對應出現兩個以上的峰值。 B.確認多觸碰物觸碰手勢(T〇uch私⑽)的偵測方法 確s忍多觸碰物稿碰後，可開始彳貞__手勢，並開始 計算其位置與數目等訊息。第9關示偵測信號2Q6及觸碰 信號208的波形圖。在偵測到至少兩觸碰物觸碰觸控面板時， 開始計算該至少兩觸碰物在觸控面板上的停留時間，在符合前 述「確認多觸碰物觸碰的細方法」確定觸碰物觸碰觸控面板 後’計算觸控面板上的時間大於預設時間Ττ_，送出多觸碰 201007533 物觸碰信號208，並計算該至少兩觸碰物的位置，送出一位置 信號。其中該多觸碰物觸碰信號2〇8可以包括觸碰物數目的 資訊。 C.確認多觸碰物離開的偵測方法 觸碰物的觸碰’係屬於觸碰物開始接觸觸控面板；在確認 觸碰物的觸碰手勢後，即須確認觸碰物何時離開。第1〇圖係 感應量的兩個峰值均大於臨界值th後所偵測到的感應量變 ❹ 化。其中鱗212係這摘伽__應量，曲線21〇係前 -次所偵測到的感應量。第”圖係第1〇圖中兩次感應量每點 的差值(點X(W的這次的感應量減去上一次的感應量），亦 即’點感應量差值dV，第12醜示侧信號214的波形圖。 請參考帛10圖、第11圖及第12圖，在觸碰物觸碰觸控面板 後’-旦偵測到感應量的兩個峰值至少一個大於臨界值化，在 ❹ 此實施例中感應量的兩個峰值均大於臨界值，如第1〇圖所 不。偵測信號214由高準位轉為低準位，如第12圖所示，接 著在時間了___續_顧應量，並將此次所偵測到的 感應量212減核—:欠的_量210,制-感應量差值dV， 如第11圖所不。若在時間T_ecti^，所得到的點感應量差 值dV均為正值’表不該兩觸碰物中至少一個開始離開觸控面 板。 D_確„心多觸碰物離開手勢(匕所Gesture)的谓測方法 9 201007533 第13圖顯示偵測信號216及離開信號218的波形圖。在 觸碰物觸碰觸控面板後，一旦偵測到至少一個觸碰物離開觸控 面板時’開始計算至少一個觸碰物離開觸控面板的時間，計算 留在觸控面板上的觸碰物數目，若仍有觸碰物留在觸控面板 上，計算其位置並送出位置信號。在符合前述「確認多觸碰物 離開的债測方法」且觸碰物離開觸控面板的時間大於預設時間 TLiftGesture時’送出離開信號2彳8。同樣地，該離開信號218可 © 以包括觸碰物數目的資訊。 E.多觸碰物單擊手勢(TapGesture)的彳貞測方法 觸碰物單擊的特色為，觸碰的時間較短，因此，在偵測上 與觸碰物的手勢不同。第14圖顯示偵測信號及單擊信號 222的波形圖。在偵測到至少兩觸碰物觸碰觸控面板時，偵測 信號220由低準位轉為高準位，如第14圖所示。接著，計算 觸碰物觸碰觸控面板的觸碰時間以及計算觸碰物數目，在讀定 β 有多個觸碰物觸碰觸控面板，亦即符合「確認多觸碰物觸碰的 偵測方法」’並且在該觸碰時間小於預設時間ha—便偵測到 所有觸碰物離開觸控面板，則谓測信號22〇由高準位轉為低 準位。接著計算觸補離嶋控面板的__，在確定符合 確⑽夕觸碰物離開的酬方法」，且該賴時間大於預設時 間TTa_時’即可判斷為單擊手勢，送出一單擊信號222，同 時計算該至少兩觸碰物單擊的位置，送出-位置信號。 201007533 F.多觸碰物雙擊手勢(Double Tap)的偵測方法 雙擊手勢係在短時間内進行兩次的單擊手勢。第15圖顯 示偵測信號224及拖曳信號226的波形囷。在偵測到至少兩 觸碰物第一次觸碰觸控面板時，偵測信號224由低準位轉為 高準位，如第15圖所示。接著計算觸碰物觸碰觸控面板的第 一觸碰時間以及計算觸碰物數目，在確定有多個觸碰物觸碰觸 控面板，亦即符合「確認多觸碰物觸碰的偵測方法」，並且在 觸碰物數目不變的情況下，該第一觸碰時間小於預設時間 TTapD〇wn便偵測到所有的觸碰物離開觸控面板，摘測信號224 由高準位轉為低準位，接著計算該至少兩觸碰物離開觸控面板 的義時間，在較符合「確認麵雜賴的細方法」， 且在該離_間小_設時間TTapUft又侧到所有的觸碰物第 二次觸碰觸控面板.，則偵測信號224再度由低準位轉為高準 位，計算第二次觸碰觸控面板的第二觸碰時間，在確定有多個 觸碰物觸碰觸控面板，亦即符合「確認多觸碰物觸碰的偵測方 法」，並且在觸碰物數目不變的情況下，該第二觸碰時間小於 預設時間TDragDown時，谓測到所有的觸碰物再度離開觸控面 板，則偵測信號224由高準位轉為低準位，在確定符合「確 認多觸碰物離開的_方法」，送出一雙擊信號226，同時計 算該至少兩觸碰物的位置，送出一位置信號。 G.多觸碰物拖曳手勢(DragGesture)的偵測方法 11 201007533 拖曳手勢的觸碰時間均較先前的例子長。第16圖顯示偵 測信號228及拖曳信號230的波形圖。偵測到至少兩觸碰物 第一次觸碰觸控面板時’偵測信號228由低準位轉為高準位， 如第16圖所示，接著計算該至少兩觸碰物觸碰觸控面板的第 一觸碰時間以及計算觸碰物數目，其中觸碰物數目必須大於等 於2在確疋有多個觸碰物觸碰觸控面板，亦即符合「確句、多 觸碰物觸碰的偵測方法」，並且在觸碰物數目不變的情況下;， 該第-觸碰關大於職綱TT_wn時，伽醜至少兩觸 碰物中至少一個離開觸控面板，偵測信號228由高準位轉為 低準位’在確定__碰物符合「確定多觸碰物離開的_ 方法」’並且留在觸控面板上的觸碰物數目大於1時，送出一 拖矣信號230，同時計算觸碰物的位置，送出—位置信號。 在以上的各個實侧巾’均為细感應量的變化以及感應 量的時間長度與預設的時間味，來輕各種在觸控面板上的 操作，即可有效地避免掉雜訊干擾，可避免_控物動作的誤 判。 〜雖穌购讀佳實關減如上麟，财麟用以限 林發任何熟習細技藝者，在不脫離本發明之精神和範 圍内田可作些許之更動與潤飾，因此本發明之專利保護範圍 須視本說明書觸之ψ料纖_界定者為準。 【圖式簡單說明】 12 201007533 第1圖係習知的二維電容式觸控面板； 第2圖係第1圖的觸控面板j^應量與位置的關係圖； 第3圖顯福隻手指觸碰觸控面板後所侧到的感應量變化丨 第4A圖顯示一雜訊； 第4B圖係第4A 中雜訊經類比數位轉換所得到的感應量； 第4C圖係將第4B圖取樣後的波形圖； 第5圖係兩隻手指觸碰觸控面板時所偵測到的波形圖； ® 第6圖係感應量小於臨界值th後所偵測到的感應量變化； 第7圖係第6圖中兩次感應量的差值； 第8圖顯示偵測信號204的波形圖； 第9圖顯示偵測信號206及觸碰信號208的波形圖； 第10圖係感應量大於臨界值th後所偵測到的感應量變化； 第11圖係第10圖中兩次感應量的差值； 第12圖顯示偵測信號214的波形圖； 第13圖顯示偵測信號216及離開信號218的波形圖； 第14圖顯示偵測信號220及單擊信號222的波形圖； 第15圖顯示偵測信號224及拖曳信號226的波形圖；以及 第16圖顯示偵測信號228及拖曳信號230的波形圖。 【主要元件符號說明】 100電容式觸控面板 102面板 13 201007533 104 Y軸感應層 106絕緣層 108 X軸感應層 110底板 112手指 200前一次所偵測到的感應量曲線 202 這次所偵測到的感應量曲線 Ο 204偵測信號 206偵測信號 208觸碰信號 210前一次所偵測到的感應量曲線 212這次所偵測到的感應量曲線 214偵測信號 216偵測信號 ® 218離開信號 220偵測信號 222單擊信號 224偵測信號 226雙擊信號 228偵測信號 230拖曳信號 14201007533 IX. INSTRUCTIONS: [Technical Field] The present invention relates to a method of a capacitive touch panel, and more particularly to an anti-noise multi-touch detection method. [Prior Art] A capacitive touch panel is an input device that performs ❹ (4) by the charging characteristics of a finger (touch). When the touch is broken or slides on the touch panel, the capacitance on the touch panel changes. By the technique of changing the capacitance, the amount of cursor movement representing the touch object can be calculated. . Because the capacitive touch panel is thinner, it can be designed in thin notebook computers, keyboards, digital players, and the like. 1 is a conventional two-dimensional capacitive touch panel 1A including: a panel 102, a x-axis sensing layer 104, an insulating layer 106, an X-axis sensing layer 彳08, and a 底板 substrate 110. When the finger 112 touches the panel 102, the position touched by it will have a corresponding change in capacitance, i.e., the amount of money formed. The control circuit of the scale contact panel 100 can convert the change of the capacitance on the touch panel into a sense, and the amount of ν« is as shown in FIG. 2, and the position of the sensor can be judged by detecting the amount of the sensor, Na amount and axis financial direction. ^ In the technical know-how, it is necessary to confirm whether the touch object touches the capacitive touch panel 100 to determine the magnitude of the detected amount. For example, if the amount of the field is greater than the critical value th day The touch indicates that the touch object touches the touch panel 5 201007533 100 'Conversely, when the touch value of the small thief is th, it indicates that the touch object leaves the touch panel 1 or no touch object exists on the touch panel 100. However, the touch panel Ί00 may be disturbed by a wireless device such as a mobile phone to generate noise, causing the touch panel to make a touch, click, move or other gesture operation on the touch panel. FIG. 4A is an example of the noise generated on the touch panel 100. The analog signal is converted by analogy. The amount of the sensor is obtained as shown in FIG. 4B, and finally the sample is sampled to obtain the waveform of the 4C chart. . Such a waveform is similar to the waveform generated when two fingers touch the touch panel 1,, as shown in Fig. 5. Therefore, the noise of the fourth picture may be misjudged as two fingers touching the touch panel 1 〇〇, causing an erroneous operation. Therefore, how to develop a side method that can prevent noise interference has become the focus of touch panel technology development. SUMMARY OF THE INVENTION In view of the above problems in the prior art, the present invention provides a capacitive touch-and-pad bump-method, which aims to avoid misinterpretation of touches caused by noise interference. In order to achieve the above object, the present invention provides a multi-touch object side method of a capacitive touch panel: by setting at least one preset time to identify that the change in the amount of sensing on the touch panel is on the touch panel of the miscellaneous touch object. Operation, in order to correctly determine whether the touch object touches or leaves the touch panel, and thus accurately detects various gestures. 201007533 [Embodiment] When a multi-touch touches the _ control panel, there will be a corresponding amount of induction. By changing the change of multiple sensing quantities, you can perform the pre-measurement of multi-touch; and the 'change trend of the domain can confirm the touch of the real touch' instead of the noise station. Caused. The present invention will respectively describe the method of the present invention for the following cases: A. A. Touch confirmation of a multi-touch; B multi-touch gesture reversal confirmation; C. Multi-touch object; D . Confirmation of the departure of the touch object gesture; E. Multi-touch click gesture (side of Ding Ruru (4); detection method of double touch double tap gesture (Double Tap); G· multi-touch drag Drag Gesture's method of debt measurement. The following explains: A. Indeed touch touch touch method touch touch touch for the touch panel, most will not suddenly appear , or suddenly disappears; that is, the amount of inductance that suddenly appears on the touch panel or disappears on the touch panel changes, there will be some established trend, ❹ and, there is a certain numerical stability. In general, there is no trend in the noise of 4A. The change in the amount of the sensor can be used to confirm the touch detection of multiple touches. Please refer to Figure 6 for two touches. Touching an example of a change in the amount of inductance on the touch panel, which illustrates the two peaks of the amount of inductance The amount of inductance that is less than the threshold value, which is the X-axis value corresponding to a certain γ-axis, and has eight points, which are x〇, X1, Χ2, Χ3, Χ4, χ5ι Χ6> 7 201007533 X7. Curve 2G2 is the amount of induction for this time, and curve 2 (5) is the amount of induction from the previous side. Figure 7 is the difference between each point of the two senses in Figure 6. Point X (the current amount of W minus the amount of the first-order sense), that is, the waveform of the point-sensing difference dV '8th_show_signal 204. Please refer to Figure 6 and Figure 7 In Figure 8, when the amount of money on the surface of the control panel is less than the threshold value (as shown in Figure 6), the detection signal 204 is changed from the low level to the high level. Level (as shown in Figure 8). Then, at the time TD__tW, the amount of sensing on the touch panel is continued, and the measured amount 202 of the touch is subtracted from the measured value of the previous time (2), and the image is obtained as shown in Fig. 7. The difference in the sensed value dV 'if the point difference dV obtained in the time TD_Detect is a threshold value, that is, the touch object touches the touch panel. The peak value of each sense is There should be one touch, therefore, in other embodiments, 'if there are two on the slap touch panel, the sensor 罝 will correspondingly appear more than two peaks. B. Confirm multi-touch touch gesture ( T〇uch private (10)) detection method does not touch the touch of the object, you can start 彳贞__ gesture, and start to calculate the position and number of messages. The 9th detection signal 2Q6 and touch The waveform diagram of the signal 208. When detecting that at least two touch objects touch the touch panel, start calculating the residence time of the at least two touch objects on the touch panel, and confirm the multi-touch touch The fine method "determines that after the touch object touches the touch panel, 'calculates that the time on the touch panel is greater than the preset time Ττ_, sends a multi-touch 201007533 object touch signal 208, and calculates the position of the at least two touch objects, Send a position signal. The multi-touch touch signal 2〇8 may include information on the number of touches. C. Confirmation of the detection method of multi-touch object The touch of the touch object belongs to the touch object and starts to touch the touch panel; after confirming the touch gesture of the touch object, it is necessary to confirm when the touch object leaves. In the first graph, the detected amount of the two peaks of the inductive amount are greater than the critical value th. Among them, the scale 212 is the amount of gamma __, and the curve 21 is the amount of induction detected before. The first figure is the difference between each point of the two inductive quantities in the first picture (point X (the current amount of induction of W minus the previous amount of induction), that is, the point difference dV, the 12th ugly The waveform of the side signal 214 is shown. Referring to FIG. 10, FIG. 11 and FIG. 12, after the touch object touches the touch panel, at least one of the two peaks of the detected amount is greater than the critical value. In this embodiment, the two peaks of the inductive amount are greater than the critical value, as shown in Fig. 1. The detection signal 214 is changed from the high level to the low level, as shown in Fig. 12, and then in time. ___Continued _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The obtained point sensing difference dV is a positive value. The table indicates that at least one of the two touches starts to leave the touch panel. D_ § The multi-touch object leaving gesture (Gesture) Method 9 201007533 Figure 13 shows the waveform of the detection signal 216 and the departure signal 218. After the touch object touches the touch panel, once at least one touch object is detected, the touch is detected. When the panel starts to calculate the time when at least one touch object leaves the touch panel, calculate the number of touches left on the touch panel. If there are still touches left on the touch panel, calculate the position and send the position signal. When the time of the "debt checking method for confirming the departure of the multi-touch" and the time when the touch object leaves the touch panel is greater than the preset time TLiftGesture, the outgoing signal 2彳8 is sent. Similarly, the leaving signal 218 can be Including the number of touches. E. Multi-touch click gesture (TapGesture) The touch method clicks the feature, the touch time is shorter, therefore, the detection and touch The gestures of the objects are different. Figure 14 shows the waveforms of the detection signal and the click signal 222. When it is detected that at least two touches touch the touch panel, the detection signal 220 is changed from the low level to the high level. As shown in Figure 14. Next, calculate the touch time of the touch object touching the touch panel and calculate the number of touch objects. When reading β, there are multiple touch objects touching the touch panel, which means that the confirmation is met. Multi-touch touch detection method"' and in If the touch time is less than the preset time ha—there is detected that all the touches leave the touch panel, then the test signal 22〇 is changed from the high level to the low level. Then, the __ of the touch panel is calculated. When it is determined that the reward method of the departure of the touch object is met, and the time is greater than the preset time TTa_, it can be determined as a click gesture, and a click signal 222 is sent, and the at least two touches are simultaneously calculated. Click the position to send the - position signal. 201007533 F. Multi-touch double-click gesture (Double Tap) detection method Double-click gesture is a click gesture twice in a short time. Figure 15 shows the detection signal 224 And the waveform 拖 of the drag signal 226. When it is detected that at least two touches touch the touch panel for the first time, the detection signal 224 is changed from the low level to the high level, as shown in FIG. Then, the first touch time of the touch object touched the touch panel is calculated, and the number of touch objects is calculated, and it is determined that there are multiple touch objects touching the touch panel, that is, the "detection of multi-touch touch" is met. The measurement method", and in the case that the number of touch objects is constant, the first touch time is less than the preset time TTapD〇wn, and all the touch objects are detected to leave the touch panel, and the signal 224 is measured by Micro Motion. The bit transitions to a low level, and then calculates the right time of the at least two touches to leave the touch panel, which is more in line with the "fine method of confirming the surface miscellaneous", and the TTapUft is further sideways in the interval When all the touch objects touch the touch panel for the second time, the detection signal 224 is again changed from the low level to the high level, and the second touch time of the touch panel is calculated for the second time. When a plurality of touch objects touch the touch panel, the method of "detecting the multi-touch touch detection" is met, and the second touch time is less than the preset time when the number of touch objects is constant. In TDragDown, when all touches are detected to leave the touch panel again, the detection signal 224 is detected. High level into low level, in determining compliance "_ method to confirm a multi-touch objects leave", double-click sends a signal 226, taking into account the location of at least two touch objects operator, sends a position signal. G. Multi-touch drag gesture (DragGesture) detection method 11 201007533 The drag gesture has a longer touch time than the previous example. Fig. 16 shows a waveform diagram of the detection signal 228 and the drag signal 230. When detecting that at least two touches touch the touch panel for the first time, the detection signal 228 is changed from the low level to the high level, as shown in FIG. 16, and then the touch of at least two touches is calculated. The first touch time of the control panel and the number of touched objects, wherein the number of touches must be greater than or equal to 2, and it is confirmed that there are multiple touches touching the touch panel, that is, the "satisfied sentence, multi-touch" Touch detection method", and when the number of touch objects does not change; when the first touch touch is greater than the rank TT_wn, at least one of the two touches leaves the touch panel, detecting The signal 228 is changed from the high level to the low level. When it is determined that the object meets the "method of determining the multi-touch leaving" and the number of touches remaining on the touch panel is greater than 1, a drag is sent. The signal 230 is simultaneously calculated for the position of the touch object and the position signal is sent. In each of the above solid side towels, the change in the amount of fine sensing and the length of the sensing amount and the preset time taste, to lightly operate various operations on the touch panel, can effectively avoid noise interference. Avoid _ misjudgment of the control action. ~ Although the purchase of Jiashi Guanshang as above, the use of Cailin to limit any of the skilled craftsmen of Linfa can make some changes and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention Subject to the instructions in this manual. [Simple description of the diagram] 12 201007533 The first picture is a conventional two-dimensional capacitive touch panel; the second picture is the relationship between the amount and position of the touch panel j^ in the first figure; The amount of change in the side of the finger after touching the touch panel 丨 Figure 4A shows a noise; Figure 4B shows the amount of noise obtained by the analog-to-digital conversion of the noise in 4A; Figure 4C shows the 4B Waveform after sampling; Figure 5 is the waveform detected when two fingers touch the touch panel; ® Figure 6 shows the change in the detected amount after the induction is less than the critical value th; Figure 6 shows the difference between the two sensing quantities; Figure 8 shows the waveform of the detection signal 204; Figure 9 shows the waveform of the detection signal 206 and the touch signal 208; The detected amount of change after the threshold value th; Figure 11 is the difference between the two sensed quantities in Figure 10; Figure 12 shows the waveform of the detected signal 214; Figure 13 shows the detected signal 216 and Waveform of signal leaving signal 218; Figure 14 shows waveform diagram of detection signal 220 and click signal 222; Figure 15 shows detection signal 224 FIG dragging signal waveform 226; and FIG. 16, a waveform diagram showing detection signals 228 and 230 of signal boxes. [Main component symbol description] 100 capacitive touch panel 102 panel 13 201007533 104 Y-axis sensing layer 106 insulating layer 108 X-axis sensing layer 110 bottom plate 112 Finger 200 detected the previous sensing curve 202 This time detected Inductance curve Ο 204 detection signal 206 detection signal 208 touch signal 210 previous detected sensitivity curve 212 detected sensitivity curve 214 detection signal 216 detection signal 218 leaving signal 220 detection signal 222 click signal 224 detection signal 226 double-click signal 228 detection signal 230 tow signal 14