TW201015395A - Method for determining a position of a touch event on a touch panel and a set of sensors thereof being touched - Google Patents

Method for determining a position of a touch event on a touch panel and a set of sensors thereof being touched Download PDF

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TW201015395A
TW201015395A TW97137915A TW97137915A TW201015395A TW 201015395 A TW201015395 A TW 201015395A TW 97137915 A TW97137915 A TW 97137915A TW 97137915 A TW97137915 A TW 97137915A TW 201015395 A TW201015395 A TW 201015395A
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value
reference value
setting
sensors
sensed
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TW97137915A
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TWI405100B (en
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Ming-Yen Lin
Hui-Lung Yu
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Au Optronics Corp
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Abstract

A method for determining any of a set of sensors of a touch panel being touched includes receiving a set of sensing values of the set of the sensors, generating a maximum value and a minimum value according to the set of the sensing values of the set of the sensors, and determining the set of the sensors not being touched when the difference between the maximum and the minimum values does not exceed a limit.

Description

201015395 九、發明說明: 【發明所屬之技術領域】 本發明係有關於-__碰面板上之 否 觸碰的方法,更明確地說 邮射疋否有被 感測值中最大值與最小值的差異^關—種_—組感測器之 碰的方法。 U斷該組感測HU否有被觸 ❹ 【先前技術】 著科技的不崎步,齡已存在有許麵獅輸入裝 置,來祕使用者控制電腦以執行對應的程式或運作。這當中包 含了移動顯示螢幕上的游標賴擇顯示勞幕上的選項。輸入裝置 可包含如按鍵、城、軌跡球、觸碰板、搖桿、_式面板(T〇uch 版0及其他_產品。由於難式面_枝性與錄性,以及 價格降低的趨勢’越來越多使用者選擇以觸控式面板來作 ❹的輸入裝置。觸控式面板提供使用者僅需以手指或光筆,來觸碰 觸控式面板’便能執行移_讀幕上_標或者選擇顯示營幕 上的選項。_控式面缺賴观用者鮮指或絲所觸碰的 位置,觸發對應_碰訊號給賴,而讓電概對應地移動游標 或者選擇使用者所選擇的選項。 一般投射電容式觸控式面板可分為自我型(selftype)觸控式面 板以及交互型(mutual type)觸控式面板。以下將對這兩種類型的觸 ' 控式面板進行介紹。 201015395 請參考第1圖。第1圖係為一自我型觸控式面板1〇〇之示意 圖。如第1圖所示’自我型觸控式面板100係由複數條X軸(Xj、 X2…XN)與複數條γ轴π、γ2…ΥΜ)交又形成複數個節點(巧1、 Ν1Ζ ' Νπ··.Ννμ)。每個節點可視為一代表座標之感測器。該感測 器在有被觸碰的情況下,其所對應的χΝ與Υμ與其餘χ、γ所輸 出的感測值係為相異。如此一來,使用者便可根據複數條X轴與 〇 複數條υ轴所輸出的感測值,判斷該感測器所對應的節點(如Νιύ 是否被觸碰。 請繼續參考第1圖。自我型觸控式面板1〇〇偵測觸碰點的方式 說明如下:先接收各個X轴(Χι、Χ2·..Χν)上的感測值(Dxi、D沿、 Dx3.,,Dxn)、再接收各個γ軸(Υι、Y2...Ym)上的感測值(DY1、Dy2、 dy3...Dym),然後判斷所接收的這些感測值,是否大於一臨界值 〇 L,再以此定義出觸碰點的座標(χ,γ)。舉例來說,若感測值 與DYZ大於臨界值L,則自我型觸控式面板1〇〇便判斷節點叫2被 觸碰,其餘節點被觸碰的判斷方式以此類推。 明參考第2圖。第2圖係為一交互型觸控式面板2⑻之示意 圖。如第2圖所示,交互型觸控式面板亦係由複數條χ轴%、 Χ2...ΧΝ)與複數條Υ軸(Yl、Υ2...Υμ)交叉形成複數個節點队、1 以2、Nu...Nnm)。每個節點可視為一代表座標之感測器。該感測 器在有被觸碰與未被觸碰的情況下,所輸出的感測值係為相異。 201015395 如此一來,使用者便可根據一感測器所輸出的感測值,判斷該感 測器所對應的節點(如Nn)是否被觸碰。 請繼續參考第2圖。交互型觸控式面板2〇〇偵測觸碰點的方式 說明如下.先以驅動訊號SX1 ’驅動X軸&以啟動位於X軸& 上的節點(Nu所對應的感測器,然後從γ軸Yi〜Ym上 分別接收感測值DX1Y1、Dxm、Dxm...DxlYM,然後判斷所接收的 〇 這些感測值,是否大於一臨界值L·,再以此定義出在又軸1上有 哪些節點被觸碰,以決定觸碰點的座標(1,γ)。舉例來說,若感測 值Dxm大於臨界值L,則交互型觸控式面板2〇〇便判斷節點Να 被觸碰。在鶴完Χ軸Χι之後,接著以鶴訊號^來驅動χ抽 X2,同樣以上述方式判斷有哪些節點被觸碰(如節點Ν^)。如此掃 描完X軸X1〜XN後,便可完成對於交互型觸控式面板2〇〇的一個 晝面中觸碰點的位置的判斷。 ◎ 然而,無淪是自我型觸控式面板或者交互型觸控式面板,其整 $會被觸碰到的面積(觸碰點)相較於觸控式面板的面積,小的許 夕而在上述兩種觸控式面板的觸碰點判斷方式中,皆需要將整 個觸控式面板全部雜過—次才能完細碰點的判斷 ,如此對於 觸控仏板的功耗上,便顯得浪費,轉低觸控式硫的便利性。 【發明内容】 本發明係提供-種判斷-觸碰面板上觸碰闕絲。該方法包 201015395 # 含接收-組感測器所產生的—組感測值、根據該組感測值產生一 第參考值及一第一參考值、根據該第一參考值及該第二參考 值’設定-臨界值,以及當該組感測器中之—感測器所產生之一 感測值超過該臨界值時,判斷該感測器被觸碰。其中該組感測值 中之一感測值係由該組感測器中之一對應感測器所產生。 本發明另提供-種判斷-觸碰面板上之一組感測器是否有被 〇 觸碰的方法。該方法包含接收一組感測器所產生的一組感測值、 根據該組感測值產生一第一參考值及一第二參考值,以及當該第 參考值及該第二參考值之差值小於一上限值時,判斷該組感測 器皆未被觸碰。其中該組感測值中之一感測值係由該組感測器中 之一對應感測器所產生。 【實施方式】 ©請參考第3圖。第3圖係為本發明所提出針對自我型觸控式面 板100之具有效率與節省功耗之判斷觸碰點的方法3〇〇之示意 圖。步驟說明如下: 步驟301 :接收各個x軸(:^、& Xn)上的感測值(Dxi、Dx2、 〇X3 - .Dxn); 步驟302 :從所接收的感測值Dxi、DX2、dX3...Dxn,取出最大感 測值Dxmax(X軸之第一參考值)與最小感測值Dx_(x 轴之第二參考值); 步驟303 :判斷最大感測值]^_與最小感測值Dx_之差值是 201015395 接著進行步驟305 ;若 否大於一上限值dlimit;若是, 否,接著進行步驟304 ; 步驟304 : 判斷觸控式面板100上之所有節點 碰; 〜Nnm皆未被觸 步驟305 :根據最域雕ϋχΜΑχ赌顿曝d_,設定一 臨界值DXT,並判斷感測值知〜、中大於該臨界值 DXT的感測值所對應的X軸有祧 ©步驟3〇6:接收各個Y軸(HYm)上的感測值(Dyi、Dy2、 DY3...Dym); 步驟307 :從所接收的感測值Dyi、Dy2、Dy3 Dym,取出最大感 測值Dymax(Y軸之第一參考值)與最小感測值〇麵代 軸之第一參考值),以據以設定一臨界值0打,並判斷 感測值DY1〜DYM中大於該臨界值Dyt的感測值所對應 的Y軸有被觸碰; 3步驟308 :根據步驟305與步驟3〇7所判斷有被觸碰到的χ袖與 γ軸’定位被觸碰的觸碰點的座標。 於步驟303中,上限值dlimit大小的設定,可根據使用者需求 來設定’或根據使用者實際實驗所得出的經驗值來設定。 於步驟304 t ’當最大感測值Dxmax與最小感測值Dxmin之差 值小於上限值Dlimit時,自我型觸控式面板100便直接判斷整個 畫面皆未被觸碰’而不用進行後續的處理(如接收γ軸的感測值及 201015395 相關處碰點的判斷),進而減少自我型觸控式面板100的功耗並提 高處理的效率。 於步驟305中,臨界值DXT的設定方式可由如下式說明: Dxmin+Px(dxmax_dxmin)...(1);其中 p 表示一敏感常數, 最小感測值dxmin可以作為臨界值DxT的預設臨界值(當將敏感常 數P設為「〇」)’而Px(Dxmax_Dxmin)係作為臨界值DxT的補償值。 〇 若自我型觸控面板100欲將觸碰點的敏感度提升時,則可降低敏 感常數的數值(意即降低臨界值DXT),如此在步驟305中,便可較 容易偵測到被觸碰的又軸,反之亦然。 於步驟307 t,臨界值DYT的設定方式可由如下式說明: DYT Dymin+Px(dymax_dymin)...(1);其中 p 表示一敏感常數, 最小感測值DYMIN可以作為臨界值Dyt的預設臨界值(當將敏感常 ❹ 數P设為「〇」),而PX(DYMAX-DYMIN)係作為臨界值dyt的補償值。 若自我型觸控面板1〇〇欲將觸碰點的敏感度提升時,則可降低敏 感常數的數值(意即降低臨界值DYT),如此在步称中,便可較 容易偵測到被觸碰的γ軸,反之亦然。 於步驟308中,自我型觸控式面板1〇〇便可根據步驟3〇5與 307所判斷被觸碰到的χ軸與γ軸,來判斷觸碰點的座標。舉例 來說,當步驟305判斷X軸X5被觸碰、步驟3〇7判斷γ軸γ?被 觸石亚,則自我型觸控式面板100便可判斷觸碰點係為節點Nr,坐 201015395 心即為(5’7) ’如此以完成在—個畫面中判斷觸碰點的位置。 另外,在本發騎陳述的方法巾,不—定縣處理又轴 :::。換句話說,方法3〇。亦可先對¥軸上的感測值進行 ^如細3(Π〜3()4),而若於步驟如中判斷¥轴上的感測值的 最大感測值Dymax與最小感測值D麵超過上限值A·,則便可 再進灯對於X軸上感測值的處理(步驟3〇5〜3〇8)。 ❹ ❹ 明參考第4圖。第4圖係為本發明所提出針對交互型觸控式面 板200之具有效率與節省功耗之判斷觸碰點的方法伽之示意 圖。步驟說明如下:201015395 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a method of detecting a touch on a panel, and more specifically, whether the scam has a maximum value and a minimum value among the sensed values. The difference ^ off - kind _ - group sensor touch method. U breaks the group to sense whether the HU is touched. [Prior Art] With the lack of technology, there is already a lion input device for the user to control the computer to execute the corresponding program or operation. This includes the options on the mobile display screen to display the screen. Input devices can include buttons, cities, trackballs, touch pads, rockers, _-type panels (T〇uch version 0 and other products. Due to difficult surface _ branching and recording, and price reduction trend' More and more users choose to use the touch panel as the input device. The touch panel allows the user to touch the touch panel with a finger or a light pen. Mark or select to display the options on the camp. _ Control surface is missing the position of the finger or the touch of the wire, trigger the corresponding _ touch signal to give, and let the electric move correspondingly move the cursor or select the user The selected options are generally divided into self-type touch panels and mutual type touch panels. The following two types of touch panels will be used. Introduction: 201015395 Please refer to Figure 1. Figure 1 is a schematic diagram of a self-touch panel. As shown in Figure 1, the self-touch panel 100 is composed of a plurality of X-axis (Xj, X2...XN) and a plurality of γ-axis π, γ2...ΥΜ) intersect to form a plurality of nodes 1. Ν1Ζ ' Νπ··.Ννμ). Each node can be thought of as a sensor that represents a coordinate. In the case where the sensor is touched, the corresponding χΝ and Υμ are different from the sensed values output by the remaining χ and γ. In this way, the user can determine whether the node corresponding to the sensor (such as Νιύ is touched according to the sensed value outputted by the plurality of X-axis and 〇 complex υ axis. Please refer to FIG. 1 . The self-touch panel 1〇〇 detects the touch point as follows: first receives the sensed values on each X-axis (Χι, Χ2·..Χν) (Dxi, D-edge, Dx3., Dxn) And receiving the sensing values (DY1, Dy2, dy3...Dym) on the respective γ axes (Υι, Y2...Ym), and then determining whether the received sensing values are greater than a critical value 〇L, Then define the coordinates of the touch point (χ, γ). For example, if the sensed value and DYZ are greater than the critical value L, the self-touch panel 1 determines that the node 2 is touched. The other nodes are judged by the way of touching, etc. Refer to Figure 2. Figure 2 is a schematic diagram of an interactive touch panel 2 (8). As shown in Figure 2, the interactive touch panel is also A plurality of χ axes %, Χ 2 ... ΧΝ) intersect with a plurality of Υ axes (Yl, Υ 2 ... Υ μ) to form a plurality of node groups, 1 to 2, Nu...Nnm). Each node can be thought of as a sensor that represents a coordinate. The sensor's sensed values are different when there are touched and untouched sensors. 201015395 In this way, the user can judge whether the node corresponding to the sensor (such as Nn) is touched according to the sensed value output by a sensor. Please continue to refer to Figure 2. The interactive touch panel 2 〇〇 detects the touch point in the following manner. First drive the X-axis & drive signal SX1 ' to start the node on the X-axis & (Nu corresponding to the sensor, then Receiving the sensed values DX1Y1, Dxm, Dxm...DxlYM from the γ axes Yi~Ym, respectively, and then determining whether the received sensed values are greater than a critical value L·, and then defining the axis 1 Which nodes are touched to determine the coordinates (1, γ) of the touch point. For example, if the sensed value Dxm is greater than the threshold value L, the interactive touch panel 2 determines that the node Να is Touch. After the crane finishes the axis, then drive the X2 with the Hexun number^, and also determine which nodes are touched (such as the node Ν^) in the above manner. After scanning the X-axis X1~XN, The judgment of the position of the touch point in one face of the interactive touch panel 2 can be completed. ◎ However, the flawless is a self-touch panel or an interactive touch panel, and the whole $ will be The touched area (touch point) is smaller than the area of the touch panel, and the above two touches are small In the judgment method of the touch point of the panel, it is necessary to judge the entire touch panel all the time to complete the judgment, so that the power consumption of the touch panel is wasteful, and the touch is low. Convenience of sulfur. SUMMARY OF THE INVENTION The present invention provides a type of judging-touching touch panel. The method pack 201015395 # includes a group-sensing value generated by a receiving-group sensor, according to the group The sensed value generates a first reference value and a first reference value, a set-critical value according to the first reference value and the second reference value, and one of the sensors generated in the set of sensors When the sensed value exceeds the threshold, it is determined that the sensor is touched, wherein one of the set of sensed values is generated by one of the set of sensors corresponding to the sensor. Providing a method for determining whether a group of sensors on the touch panel is touched by a beak. The method includes receiving a set of sensed values generated by a set of sensors, generating a set according to the set of sensed values a first reference value and a second reference value, and when the first reference value and the second reference value When the difference is less than an upper limit value, it is determined that the set of sensors are not touched, wherein one of the set of sensing values is generated by one of the set of sensors corresponding to the sensor [Embodiment] Please refer to Fig. 3. Fig. 3 is a schematic diagram of a method for determining the touch point of efficiency and power consumption of the self-touch panel 100 according to the present invention. The description is as follows: Step 301: Receive sensing values (Dxi, Dx2, 〇X3 - .Dxn) on each x-axis (:^, &Xn); Step 302: From the received sensing values Dxi, DX2, dX3 ...Dxn, taking out the maximum sensed value Dxmax (the first reference value of the X-axis) and the minimum sensed value Dx_ (the second reference value of the x-axis); Step 303: determining the maximum sensed value]^_ and the sense of minimum The difference between the measured values Dx_ is 201015395 and then proceeds to step 305; if not greater than an upper limit value dlimit; if yes, no, proceed to step 304; step 304: determine all nodes on the touch panel 100 to touch; Step 305 is not touched: according to the most domain gambling gambling exposure d_, a threshold value DXT is set, and the sensing value is determined to be ~, the medium is greater than the The X-axis corresponding to the sensed value of the threshold DXT is 祧©Step 3〇6: Receive the sensed values (Dyi, Dy2, DY3...Dym) on each Y-axis (HYm); Step 307: Receive from The sensed values Dyi, Dy2, Dy3 Dym, take out the maximum sensed value Dymax (the first reference value of the Y-axis) and the first sensed value of the minimum sensed value, to set a threshold value And determining that the Y axis corresponding to the sensing value greater than the threshold value Dyt in the sensing values DY1 DYDY is touched; 3 Step 308: determining that the touched value is touched according to step 305 and step 3〇7 The sleeve and the gamma axis 'position the coordinates of the touched touch point. In step 303, the setting of the upper limit dlimit size can be set according to the user's needs or set according to the empirical value obtained by the user's actual experiment. In step 304 t 'when the difference between the maximum sensed value Dxmax and the minimum sensed value Dxmin is less than the upper limit value Dlimit, the self-touch panel 100 directly determines that the entire screen is not touched' without subsequent The processing (such as receiving the sensing value of the γ-axis and the judgment of the touch point at the relevant point of 201015395), thereby reducing the power consumption of the self-touch panel 100 and improving the processing efficiency. In step 305, the setting method of the threshold DXT can be expressed by the following formula: Dxmin+Px(dxmax_dxmin)...(1); wherein p represents a sensitive constant, and the minimum sensed value dxmin can be used as a preset threshold of the threshold DxT. The value (when the sensitivity constant P is set to "〇") and Px (Dxmax_Dxmin) is used as the compensation value of the threshold DxT.自我If the self-touch panel 100 wants to increase the sensitivity of the touch point, the value of the sensitive constant can be lowered (ie, the threshold DXT is lowered), so that in step 305, it is easier to detect the touch. The axis that touches the axis, and vice versa. In step 307 t, the setting method of the threshold DYT can be expressed by the following formula: DYT Dymin+Px(dymax_dymin)...(1); wherein p represents a sensitive constant, and the minimum sensing value DYMIN can be used as a preset of the threshold Dyt. The critical value (when the sensitive constant number P is set to "〇"), and PX (DYMAX-DYMIN) is used as the compensation value of the critical value dyt. If the self-touch panel 1 wants to increase the sensitivity of the touch point, the value of the sensitive constant can be lowered (ie, the threshold DYT is lowered), so that in the step, it is easier to detect the Touch the gamma axis and vice versa. In step 308, the self-touch panel 1 can determine the coordinates of the touch point according to the detected x-axis and γ-axis determined by steps 3〇5 and 307. For example, when step 305 determines that the X-axis X5 is touched, and step 3〇7 determines that the γ-axis γ is touched, the self-touch panel 100 can determine that the touch point is the node Nr, sit 201015395 The heart is (5'7) 'So to complete the position of the touch point in the picture. In addition, in the method of the hair riding statement, not - Ding County processing axis :::. In other words, method 3〇. It is also possible to first perform a sensing value on the ¥ axis as fine 3 (Π~3()4), and if in the step, determine the maximum sensed value Dymax and the minimum sensed value of the sensed value on the ¥ axis. When the D surface exceeds the upper limit value A·, the processing of the sensed value on the X axis can be re-entered (steps 3〇5 to 3〇8). ❹ ❹ Refer to Figure 4. FIG. 4 is a schematic diagram of a method for determining the touch point of the interactive touch panel 200 with efficiency and power saving. The steps are as follows:

Dxiyi、 步驟401 :以驅_號Sxi驅動χ轴&來得到感測值 DX1Y2、DX1Y3."DX1YM ; 步驟402 .從所接收的感測值D則、D助為1YM,取 出最大感測值DX1MAX(X轴Xi之第一參考值)與最小感 測值DX1_(X軸&之第二參考值); 步驟403 :判斷最大感測值D腿AX與最小感測值Dx丨麵之差值是 否大於一上限值dlimit ;若是,接著進行步驟4〇5;若 否’接著進行步驟404 ; 步驟404 :判斷觸控式面板上之乂轴^上對應的節點 Νιι〜N1M皆未被觸碰;Dxiyi, step 401: drive the χ axis & drive to obtain the sensed value DX1Y2, DX1Y3. "DX1YM; Step 402. From the received sensed value D, D help 1YM, take the maximum sense The value DX1MAX (the first reference value of the X-axis Xi) and the minimum sensed value DX1_ (the second reference value of the X-axis & the second reference value); Step 403: determining the maximum sensed value D leg AX and the minimum sensed value Dx Whether the difference is greater than an upper limit value dlimit; if yes, proceeding to step 4〇5; if not, then proceeding to step 404; step 404: determining that the corresponding node Νιι~N1M on the touch panel on the touch panel is not Touch

步驟405 ·根據最大感測值〇χιΜΑχ與最小感測值BUM取,設定一 臨界值 DX1T,並判斷感測值 Dxm、DxiY2、DxiY3...DxiYM 201015395 中大於該臨界值DX1T的感測值所對應的γ軸有被觸 碰。 方法400僅為說明交互型觸控式面板2〇〇判斷一條X軸&上 觸碰點的方法。父互型觸控式面板2〇〇可利用方法働,完整地掃 描過X轴χ]〜χΝ ’以偵測到整個晝面中所有被觸碰的觸碰點。 〇 於步驟403中,上限值dlimit大小的設定,可根據使用者需求 來没定’或根據使用者實際實驗所得出的經驗值來設定。 於步驟404中’富最大感測值dx1max與最小感測值DxlMINi 差值小於上限值DLIMIT時,交互型觸控式面板2〇〇便直接判斷X 軸乂上的節點皆未被觸碰,而不用進行後續的處理(如將感測值 Dx丨Y1、Dx丨Y2、Dx丨Y3...DX1YM逐一與臨界值DxiT比對以判斷是否 有節點被觸碰)’進而節省交互型觸控式面板2〇〇的功耗並提高處 © 理的效率。 於步驟405中,臨界值DX1T的設定方式可由如下式說明:Step 405 · According to the maximum sensed value 〇χιΜΑχ and the minimum sensed value BUM, set a threshold value DX1T, and determine the sensed value of the sensed value Dxm, DxiY2, DxiY3...DxiYM 201015395 that is greater than the threshold value DX1T The corresponding γ axis is touched. The method 400 is merely illustrative of the method by which the interactive touch panel 2 determines an X-axis & touch point. The parental touch panel 2 can use the method to scan the X-axis χΝ]~χΝ ′ completely to detect all touched touch points in the entire surface.步骤 In step 403, the setting of the upper limit dlimit can be set according to the user's demand or set according to the empirical value obtained by the user's actual experiment. When the difference between the rich maximum sensed value dx1max and the minimum sensed value DxlMINi is less than the upper limit value DLIMIT in step 404, the interactive touch panel 2 directly determines that the nodes on the X-axis are not touched. Without subsequent processing (such as comparing the sensed values Dx 丨 Y1, Dx 丨 Y2, Dx 丨 Y3 ... DX1YM one by one with the threshold DxiT to determine whether a node is touched) 'and thus saving interactive touch The power consumption of the panel is 2 并 and the efficiency of the processing is improved. In step 405, the setting method of the threshold DX1T can be described by the following formula:

DxiT=DxlMIN+Px(DxlMAX-DxlMIN)...⑵;其中 P 表示一敏感常 數’最小感測值DXi圆可以作為臨界值DX1T的預設臨界值(當將 敏感$數P s又為「0」)’而Px(Dx1max~Dximin)係作為臨界值Dxit 的補償值。若交互型觸控面板200欲將觸碰點的敏感度提升時, •則可降低敏感常數的數值(意即降低臨界值DX1T),如此在步驟405 12 201015395 中,便可較容易偵測到被觸碰的γ軸,反之亦然。 另外,於步驟405中,判斷感測值Dxm、DxiY2、〜办為隨 中大於該臨界值DX1T的感測值所對應的γ軸有被觸碰係為判斷在 X軸Xi上感測值大於臨界值DX1T的節點係為觸碰點。舉例來說, 若感測值Dxm大於臨界值DxiT ’則可判斷節點N"係為觸碰點, 座標為(1,3)。 ❹ i ,明參考第5圖。第5圖係為本發明根據方法與侧歸納出 之判斷觸碰面板上觸碰點之方法5⑻之流程圖。步驟說明如下: 步驟501 :接收一組感測器所產生的一組感測值; 步驟502 :根據該組感測值產生一第一參考值及一第二參考值; 步驟503 :根據該第一參考值及該第二參考值,設定一臨界值; 步驟504 :當該組感測器中之—感·所產生之―感測值超過該 臨界值時’判斷該感測器被觸碰; ❹步驟505:當該第一參考值及該第二參考值之差值低於一上限值 時,判斷該組感測器皆未被觸碰。 於步驟501十’其中該組感測值中之一感測值係由該組感測器 中之一對應感測器所產生。 於步驟5〇2中,其中該第一參考值可設為該組感測值中最大之 ❹丨值、該第二參考值可設為該組制值巾最小之感測值。 13 201015395 於步驟503中,可將該第二參考值(最小感測值)設定為一預設 臨界值、然後根據該第一參考值(最大感測值)及該第二參考值之差 值’設定一補償值’再加總該預設臨界值及該補償值以作為該臨 界值。而該補償值的產生係可設定一敏感常數,然後再根據該第 一參考值及該第二參考值之差值及該敏感常數,設定該補償值, 可參考前述公式(1)、(2)。 〇 於步驟505中,上限值大小的設定,可根據使用者需求來設 定’或者可;f艮據使用者實際實驗所得出的經驗值來設定。 綜上所述,無論是自我型觸控式面板或是交互型觸控式面板, 本發月所&供之觸碰點的判斷方法,皆能以一組感測值中最大值 與最小值的差值來判斷該組感測值所對應的節點是否有被觸碰, ◎ 進㈣省觸控式面板的雜並提高處理的效率。其餘_確定義 座標位置而非計算得知位置之觸控式面板,亦能使用此方法。 、上所述僅為本發明之較佳實施例凡依本發明巾請專利範圍 所做之均轉化與修飾,皆應屬本發明之涵蓋範圍。 【圖式簡單說明】 第1圖係為-自我型觸控式面板之示意圖。 ' 第2 _為—交互型觸控式面板之示意圖。 201015395 第3圖係為本發明所提料對自翻驗式面板之具有效率與 省功耗之判斷觸碰點的方法之示意圖。 ^ 4圖係為本發騎提出針騎互型觸控式硫之具有效盘 省功耗之判斷觸碰點的方法之示意圖。 /、即 ^ 5圖係為本發騎触之_觸翻板均碰狀方法之流程 圖。 ❹DxiT=DxlMIN+Px(DxlMAX-DxlMIN)...(2); where P denotes a sensitive constant 'minimum sensed value DXi circle can be used as the preset threshold value of the threshold value DX1T (when the sensitive $number P s is again "0 ") and Px (Dx1max~Dximin) is used as the compensation value of the threshold Dxit. If the interactive touch panel 200 wants to increase the sensitivity of the touch point, the value of the sensitive constant can be lowered (ie, the threshold value DX1T is lowered), so that it can be easily detected in steps 405 12 201015395. The gamma axis that is touched and vice versa. In addition, in step 405, it is determined that the sensed values Dxm, DxiY2, and the sensed value corresponding to the sense value greater than the threshold value DX1T are determined by the touched system, and the sensed value on the X-axis Xi is greater than The node of the threshold DX1T is a touch point. For example, if the sensed value Dxm is greater than the threshold value DxiT ', it can be determined that the node N" is a touch point with coordinates (1, 3). ❹ i , see Figure 5 for reference. Figure 5 is a flow chart of a method 5 (8) for judging a touch point on a touch panel according to the method and the side of the present invention. The steps are as follows: Step 501: Receive a set of sensed values generated by a set of sensors; Step 502: Generate a first reference value and a second reference value according to the set of sensed values; Step 503: According to the first a reference value and the second reference value, setting a threshold value; Step 504: When the sensed value generated by the sense in the set of sensors exceeds the threshold value, determining that the sensor is touched Step 505: When the difference between the first reference value and the second reference value is lower than an upper limit value, it is determined that the group of sensors are not touched. In step 501, wherein one of the set of sensed values is generated by one of the set of sensors. In step 5〇2, the first reference value may be set as the largest value of the set of sensed values, and the second reference value may be set as the minimum sensed value of the set of value towels. 13 201015395 In step 503, the second reference value (minimum sensed value) may be set to a preset threshold value, and then according to the difference between the first reference value (maximum sensed value) and the second reference value 'Set a compensation value' and then add the preset threshold value and the compensation value as the threshold value. The compensation value is generated by setting a sensitivity constant, and then setting the compensation value according to the difference between the first reference value and the second reference value and the sensitivity constant, and refer to the foregoing formulas (1) and (2). ).步骤 In step 505, the setting of the upper limit value can be set according to the user's demand or can be set according to the empirical value obtained by the user's actual experiment. In summary, whether it is a self-touch panel or an interactive touch panel, the method of judging the touch point of the month can be the maximum and minimum of a set of sensed values. The difference between the values determines whether the node corresponding to the set of sensed values is touched, and ◎ enters (4) the touch panel of the province and improves the efficiency of the processing. This method can also be used for the rest of the touch panel that determines the coordinate position rather than the calculated position. The above description is only for the preferred embodiment of the present invention, and all the conversions and modifications made by the scope of the invention are all covered by the present invention. [Simple description of the diagram] Figure 1 is a schematic diagram of a self-touch panel. '2nd _ is a schematic diagram of the interactive touch panel. 201015395 Fig. 3 is a schematic diagram of a method for judging the touch point of efficiency and power consumption of the self-rewiping panel according to the present invention. ^ 4 Figure is a schematic diagram of the method for determining the touch point of the power consumption of the needle-riding type touch-type sulfur. /, that is, the ^ 5 figure is the flow chart of the method of hitting the touch. ❹

【主要元件符號說明】[Main component symbol description]

Χι ' X2 ' X3...XN Υι > Y2 >Y3 ' ΥΜ Νη、Ν12、Ν13、Ν1Μ、Ν21、Ν22、節點 Ν23、Ν2Μ、Ν31、Ν32、Ν33、Ν3Μ、 Ννι、ΝΝ2、ΝΝ3、ΝνμΧι ' X2 ' X3...XN Υι > Y2 >Y3 ' ΥΜ Ν Ν, Ν12, Ν13, Ν1Μ, Ν21, Ν22, node Ν23, Ν2Μ, Ν31, Ν32, Ν33, Ν3Μ, Ννι, ΝΝ2, ΝΝ3, Ννμ

Dxi、Dx2、Dx3、Dxn、DY1、感測值 DY2、DY3、DYM、DX1Y1、DX1Y2、Dxi, Dx2, Dx3, Dxn, DY1, sensed value DY2, DY3, DYM, DX1Y1, DX1Y2

DxiY3、Dxiym、DX2Y1 、Dx2Y2、 Dx2Y3、Dx2YM Sxi、Sx2 驅動訊號 100、200 觸控式面板 300'400 方法 301 〜308、401-405、501〜505 歩驟 15DxiY3, Dxiym, DX2Y1, Dx2Y2, Dx2Y3, Dx2YM Sxi, Sx2 drive signal 100, 200 touch panel 300'400 method 301 ~ 308, 401-405, 501~505 Step 15

Claims (1)

201015395 ' 十、申請專利範圍·· 1. 一種判斷一觸碰面板上觸碰點的方法,包含: 接收一第一組感測器所產生的一第一組感測值; 根據該第一組感測值產生一第一參考值及一第二參考值; 根據該第一參考值及該第二參考值,設定一第一臨界值;以及 當該第一組感測器中之一感測器所產生之一感測值超過該第 一臨界值時,判斷該感測器被觸碰。 〇 2. 如請求項1所述之方法’其中根據該第一組感測值產生該第 一參考值及該第二參考值包含: 將該第一組感測值中最大之感測值設為該第一參考值;以及 將該第一組感測值中最小之感測值設為該第二參考值。 3·如請求項2所述之方法,其中根據該第一參考值及該第二參考 值,設定該第一臨界值包含: V 以該第二參考值作為一預設臨界值; 根據該第一參考值及該第二參考值之差值,設定一補償值;以 及 加總該預設臨界值及該補償值以作為該第一臨界值。 4.如請求項3所述之方法,其中根據該第一參考值及該第二參考 值之差值’設定該補償值包含: 設定一敏感常數;以及 16 201015395 根據該第一參考值及該第二參考值之差值及該敏感常數,設定 該補償值。 5. 如請求項4所述之方法,其中根據該第一參考值及該第二參考 值之差值及該敏感常數,設定該補償值包含: 將該第一參考值及該第二參考值之差值乘以該敏感常數後之 數值作為該補償值。 〇 6. 如請求項4所述之方法,其中設定該敏感常數包含: 根據該觸碰面板所需求之敏感度,設定該敏感常數。 7. 如請求項6所述之方法,其中當該觸碰面板所需求之敏感度升 高時’降低該敏感常數之數值。 8. 如請求項6所述之方法,其中當該觸碰面板所需求之敏感度降 〇 低時,提高該敏感常數之數值。 9. 如請求項1所述之方法,另包含當該第一參考值及該第二參考 值之差值低於一上限值時,判斷該組感測器皆未被觸碰。 10. 如請求項1所述之方法,其中接收該第一組感測器所產生的該 第一組感測值包含: 接收-第-方向上之該第一組感測器所產生的該第一組感測 值0 17 201015395 11.如請求項10所述之方法,另包含: 接收一第二方向上之一第二組感測器所產生的一第二組感測 值; 其中當該第一組感測器中之該感測器所產生之該感測值超過該臨 界值時,判斷該感測器被觸碰,並接收該第二方向上之該第二 組感測器所產生的該第二組感測值。 〇 12·如請求項11所述之方法,其中該第二方向係垂直於該第一方 向。 13. 如請求項11所述之方法,另包含: 根據該第二組感測值產生一第三參考值及一第四參考值; 根據該第三參考值及該第四參考值,設定一第二臨界值;以及 當該第二組感測器中之一感測器所產生之一感測值超過該第 二臨界值時,判斷該感測器被觸碰。 14. 一種判斷一觸碰面板上之一組感測器是否有被觸碰的方法,包 含: 接收一組感測器所產生的一組感測值; 根據該組感測值產生一第一參考值及一第二參考值;以及 當該第一參考值及該第二參考值之差值小於一上限值時,判斷 該組感測器皆未被觸碰。 18 201015395 15. 如請求項14所述之方法,其中根據該組感測值產生該第一參 考值及該第二參考值包含: 將該組感測值中最大之感測值設為該第一參考值;以及 將該組感測值中最小之感測值設為該第二參考值。 16. 如請求項15所述之方法,其中當該第一參考值及該第二參考 值之差值大於該上限值時,判斷該組感測器中至少一感測器有 ❹ 被觸碰。 17.如請求項16所述之方法,另包含: 根據該第一參考值及該第二參考值,設定一臨界值;以及 當該組感測器中之一感測器所產生之感測值超過該臨界值 時,判斷該感測器中被觸碰。 © 18.如請求項17所述之方法,其中根據該第一參考值及該第二參 考值,設定該臨界值包含: 以該第二參考值作為一預設臨界值; 根據該第一參考值及該第二參考值之差值,設定一補償值;以 及 加總該預設臨界值及該補償值以作為該臨界值。 19.如請求項18所述之方法,其中根據該第一參考值及該第二參 19 201015395 考值之差值,設定該補償值包含: 設定一敏感常數;以及 根據該第一參考值及該第二參考值之差值及該敏感常數’設定 該補償值。 20·如請求項19所述之方法,其中根據該第一參考值及該第二參 考值之差值及該敏感常數,設定該補償值包含: 〇 將該第一參考值及該第二參考值之差值乘以該敏感常數後之 數值作為該補償值。 21·如請求項19所述之方法,其中設定該敏感常數包含: 根據s亥觸碰面板所需求之敏感度,設定該敏感常數。 22. 如請求項21所述之方法’其中當該觸碰面板所需求之敏感度 $ 升高時’降低該敏感常數之數值。 23. 如請求項21所述之方法,其中當該觸碰面板所需求之敏感度 降低時,提高該敏感常數之數值。 十一、圖式: 20201015395 ' X. Patent application scope · 1. A method for determining a touch point on a touch panel comprises: receiving a first set of sensed values generated by a first set of sensors; according to the first set The sensing value generates a first reference value and a second reference value; setting a first threshold according to the first reference value and the second reference value; and sensing one of the first group of sensors When one of the sensed values generated by the device exceeds the first critical value, it is determined that the sensor is touched. The method of claim 1, wherein the generating the first reference value and the second reference value according to the first set of sensed values comprises: setting a maximum sensed value of the first set of sensed values And being the first reference value; and setting the smallest sensed value of the first set of sensed values to the second reference value. The method of claim 2, wherein the setting the first threshold value according to the first reference value and the second reference value comprises: using the second reference value as a preset threshold value; Setting a compensation value by a difference between the reference value and the second reference value; and summing the preset threshold value and the compensation value as the first threshold value. 4. The method of claim 3, wherein setting the compensation value according to the difference between the first reference value and the second reference value comprises: setting a sensitivity constant; and 16 201015395 according to the first reference value and the The difference between the second reference value and the sensitivity constant is set. 5. The method of claim 4, wherein setting the compensation value according to the difference between the first reference value and the second reference value and the sensitivity constant comprises: the first reference value and the second reference value The difference is multiplied by the value of the sensitive constant as the compensation value. 6. The method of claim 4, wherein setting the sensitivity constant comprises: setting the sensitivity constant according to a sensitivity required by the touch panel. 7. The method of claim 6, wherein the value of the sensitive constant is decreased when the sensitivity required by the touch panel is increased. 8. The method of claim 6, wherein the sensitivity constant is increased when the sensitivity required by the touch panel is lowered. 9. The method of claim 1, further comprising determining that the set of sensors are not touched when the difference between the first reference value and the second reference value is less than an upper limit value. 10. The method of claim 1, wherein receiving the first set of sensed values generated by the first set of sensors comprises: receiving the first set of sensors generated in the first direction The first set of sensed values is a method of claim 10, further comprising: receiving a second set of sensed values generated by a second set of sensors in a second direction; When the sensed value generated by the sensor in the first set of sensors exceeds the threshold, determining that the sensor is touched and receiving the second set of sensors in the second direction The second set of sensed values produced. The method of claim 11, wherein the second direction is perpendicular to the first direction. 13. The method of claim 11, further comprising: generating a third reference value and a fourth reference value according to the second set of sensed values; setting one according to the third reference value and the fourth reference value a second threshold; and determining that the sensor is touched when one of the sensors of the second set of sensors generates a sensed value that exceeds the second threshold. 14. A method for determining whether a group of sensors on a touch panel is touched, comprising: receiving a set of sensed values generated by a set of sensors; generating a first based on the set of sensed values The reference value and a second reference value; and when the difference between the first reference value and the second reference value is less than an upper limit value, determining that the set of sensors are not touched. The method of claim 14, wherein the generating the first reference value and the second reference value according to the set of sensed values comprises: setting a maximum sensed value of the set of sensed values to the first a reference value; and the smallest of the set of sensed values is set to the second reference value. 16. The method of claim 15, wherein when the difference between the first reference value and the second reference value is greater than the upper limit value, determining that at least one sensor of the set of sensors is touched bump. 17. The method of claim 16, further comprising: setting a threshold according to the first reference value and the second reference value; and sensing when the sensor is generated by one of the set of sensors When the value exceeds the threshold, it is judged that the sensor is touched. The method of claim 17, wherein setting the threshold according to the first reference value and the second reference value comprises: using the second reference value as a preset threshold; according to the first reference And a difference between the value and the second reference value, setting a compensation value; and summing the preset threshold value and the compensation value as the threshold value. The method of claim 18, wherein setting the compensation value according to the difference between the first reference value and the second parameter 19 201015395 comprises: setting a sensitivity constant; and according to the first reference value and The difference between the second reference value and the sensitivity constant 'set the compensation value. The method of claim 19, wherein setting the compensation value according to the difference between the first reference value and the second reference value and the sensitivity constant comprises: 〇 the first reference value and the second reference The difference between the values is multiplied by the value of the sensitive constant as the compensation value. The method of claim 19, wherein setting the sensitivity constant comprises: setting the sensitivity constant according to a sensitivity required by the touch panel. 22. The method of claim 21, wherein the sensitivity constant is decreased when the sensitivity level of the touch panel is increased. 23. The method of claim 21, wherein the sensitivity constant is increased when the sensitivity required by the touch panel is reduced. XI. Schema: 20
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CN102736775A (en) * 2011-04-12 2012-10-17 瑞鼎科技股份有限公司 Updating method of baseline output value of touch panel
TWI451303B (en) * 2011-10-04 2014-09-01 Au Optronics Corp Method for sensing touch points
TWI467439B (en) * 2011-08-26 2015-01-01 Lg Display Co Ltd Touch sensing device

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US5825352A (en) * 1996-01-04 1998-10-20 Logitech, Inc. Multiple fingers contact sensing method for emulating mouse buttons and mouse operations on a touch sensor pad
TW200506740A (en) * 2003-08-07 2005-02-16 Elan Microelectronics Corp Capacitive touch panel with key structure and detecting method thereof
TWI269997B (en) * 2005-06-08 2007-01-01 Elan Microelectronics Corp Multi-object detection method of capacitive touch pad
KR100881186B1 (en) * 2007-01-04 2009-02-05 삼성전자주식회사 Touch screen display device

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Publication number Priority date Publication date Assignee Title
CN102736775A (en) * 2011-04-12 2012-10-17 瑞鼎科技股份有限公司 Updating method of baseline output value of touch panel
TWI467439B (en) * 2011-08-26 2015-01-01 Lg Display Co Ltd Touch sensing device
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TWI451303B (en) * 2011-10-04 2014-09-01 Au Optronics Corp Method for sensing touch points

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