201037573 六、發明說明： 【發明所屬之技術領域】 -r明f及—種電子裝置及其識別觸控物的方法。 【先刖技術】 隨著社會的發展和科技的進步，介面更人性化輸入更 間便的觸摸屏手機正受到越來越多人的喜愛。觸摸屏手機 見在占了越來越大的市場份額，這類手機有一個共同的特 點，就是螢幕大，因為省去了鍵盤所佔用的地方，因此營 ㈣據了絕大部分的面積。目前的智能手機，尤其是高 端、奢華的手機，基本上都是採用了觸摸屏設計。手寫輸 入透過手指輕輕按壓難屏，想要的内容即會出現眼前。 相對傳統的鍵盤設計，觸摸屏設計顯得更有靈氣，設計更 加人性化，操作起來也比較得心應手。 手扎在操作觸摸屏手機時不能較準確的點選或輸 而目則大多職屏手機並不能識別觸控物是手指還是 Ο 大，在接收到點選或輸入動作時所做的處理是相同的， 因此會導致誤操作。 【發明内容】 鑒於以上内容，本發明較佳實施例提供一種電子裝置 及其識別觸控物的方法，其可識別觸控物的類型從而分別 進行相應的處理使得點選或輸入動作更準確。 所述電子裝置安裝有觸控面板及模數轉換器，所述電 子裝置包括： 没置早70，用於設置所述觸控面板z軸方向上的電阻 4 201037573 值的臨界值，所述臨界值用於區分觸控物類型； _ 獲取單元，用於當有觸控物按壓所述電子裝置的觸控 面板時，獲取所述觸控面板z轴方向上的當前電阻值；及 觸控物識別單元，用於比對獲取的z軸方向上的當前 電阻值與設置的臨界值大小以識別當前的觸控物的類型。 所述電子裝置識別觸控物的方法，該電子裝置安裝有 觸控面板及模數轉換器，該方法包括步驟： 設置所述觸控面板Z軸方向上的電阻值的臨界值，所 ® 述臨界值用於區分觸控物類型； 觸控物按壓所述電子裝置的觸控面板； 獲取所述觸控面板Z轴方向上的當前電阻值；及 比對獲取的z軸方向上的當前電阻值與設置的臨界值 大小以識別當前的觸控物的類型。 相較於習知技術，所述電子裝置及其識別觸控物的方 法，其可以識別觸控物類型從而採用相應的處理方式以獲 Q 取準確度更高的座標。通過利用本發明，可提高輸入的準 確度。 有關本發明的特徵與實作，茲配合圖式作最佳實施例 詳細說明如下。 【實施方式】 參閱圖1所示，係本發明的電子裝置的結構示意圖。 所述電子裝置1包括一個觸控面板14、一個A/D ( Analog to Digital，模數）轉換器15及一個處理器16。 在本較佳實施例中，所述觸控面板14 (如圖3所示） 5 201037573 是電阻式觸控面板，其主要包括四線式、五線式及八線式 觸控面板。由於四線式的觸控面板的成本較低且技術較成 熟，因此成為目前最通用的一種規格。 為方便說明，在本實施例中以四線式電子式觸控面板 為例，所述觸控面板14在上下兩層鍍上ITO (銦錫氧化 物），該兩層ITO之間有透明絕緣點，在未按壓面板時讓 上下兩層ITO保有一定的空氣層且讓其處理未導電狀態。 當指尖、筆尖或其他物體在觸壓時會使上下兩層接觸而導 ® 電。其中，將該觸控面板的上層視為X軸，下層視為Y轴， 在上下層的邊緣各加裝兩條導電線路，將該兩條導電線路 分別稱為X轴導電層和Y轴導電層*同時於上下層各設定 一固定電壓，使其成為一個均勻的電場。X軸導電層所量 測的電壓值由Y轴導電層負責傳送，Y轴導電層所量測的 電壓值由X軸導電層負責傳送，如此迅速交替並將該上述 的電壓值傳送至A/D轉換器15以轉換成對應的數位信號 ^ 的座標值，所述座標值將傳送至處理器16以識別用戶的 點選動作或者輸入筆劃等。此外，所述觸控面板14還包 括一 Z軸，其主要用於衡量上下兩層ITO之間的電阻值。 所述電子裝置1可以是手機、PDA ( personal digital assistant，個人數位助理）、掌上遊戲機、數碼相機或掌上 電腦等安裝有觸控面板14及A/D轉換器15的電子裝置。 所述電子裝置1還包括設置單元10、獲取單元11、 觸控物識別單元12及準確度優化單元13。 所述設置單元10用於設置一個Z軸方向上電阻值的 6 201037573 臨界值，所述臨界值主要用於區分觸控所述觸控面板14 •的觸控物類型。在本較佳實施例中，所述觸控物類型主要 •疋指筆尖和指尖。如目4所示，當觸控物觸控所述觸控面 板14時的z軸方向上的電阻值大於所述臨界值時，則識 別補控物是筆尖；然而，如圖5所示，當觸控物觸控所 述觸控面板14 0夺的z軸方向上的電阻值小於所述臨界值 時’識別該觸控物是指尖。 〇 >所述獲取單元U肖於當觸控物觸控所述馳面板μ 時獲取其Z軸方向上的當前電阻值及電壓值。 所述觸控物識別單元12用於比對所述獲取的z軸方 向上的當前電阻值及設置的臨界值，依據其比對結果識別 所=觸控物類型。具體而言，當所述獲取的z轴方向上的 當所電阻值大於設置的臨界值時，則識別該觸控物為筆 尖；相反’當所述獲取的Z抽方向上的當前電阻值小於設 置的臨界值，則識別該觸控物為指尖。 ， 所述準確度優化單元13還用於當識別所述之觸控物 為指尖時’ 過❹餘雜職及線條平滑鱗方法 控座標進行準破度最佳化。 圖2係本發明的電子裝置識別觸控物的方法 程圖。 步驟讀，設置-個2軸方向上的電阻值的臨界值， 所逑臨界值用於區分觸控所述觸控面板14的觸控物類 型’在本較佳實施例中’所述觸控物類型主要是指;= 指尖。當觸控物觸控所述觸控面板14時的z軸方向=的 7 201037573 電阻值大於所述臨界值時，則識別該觸控物是筆尖；然 而，當觸控物觸控所述觸控面板14時的Z軸方向上的電 阻值小於所述臨界值時，識別該觸控物是指尖。 步驟S202，用戶利用觸控物觸控所述觸控面板14後， 獲取所述Z轴方向上的當前電阻值並獲取所述觸控面板 14時產生的電壓值。 步驟S203,判斷所述Z軸方向上的當前電阻值是否大 於設置的臨界值。 ® 步驟S204,當所述Z軸方向上的當前電阻值大於設置 的臨界值時，識別該觸控物為筆尖。如圖4所示，所述Z 軸方向上的當前電阻值大於臨界值。 步驟S205，當識別該觸控物為筆尖後，將該產生的電 壓值傳送至A/D轉換器15以轉換成X、Y軸的座標值。 步驟S206，處理器16依據所述座標值識別該筆劃或 點選動作。 ^ 步驟S207，判斷所述觸控面板14是否接收到所述筆 尖的點壓。當未接收到筆尖的點壓時，則流程返回步驟 S205 ;相反地，則流程結束。 在步驟S203中，當所述Z軸方向上的電阻值小於臨 界值時，進入步驟S208，則識別該觸控物是指尖。如圖5 所示，所述Z軸方向上的當前電阻值小於臨界值。 步驟S209,當識別該觸控物為指尖後，將該產生的電 壓值傳送到所述A/D轉換器15以轉換成X、Y軸的座標 201037573 步驟S210,利用過濾雜訊點及線條平滑化等方法進行 準確度最佳化以獲取較準嫁的座標值。 步驟S211，該處理器16依據所述座標值識別該筆劃 或點選動作。 步驟S212，判斷所述觸控面板14是否接收到所述指 尖的點壓。當未接收到指尖的點壓時，則流程返回步驟 S209 ;相反地，則流程結束。 综上所述，本發明符合發明專利要件，爰依法提出專 〇 利申請。惟，以上所述者僅為本發明之較佳實施方式，本 發明之範圍並不以上述實施方式為限，舉凡熟悉本案技藝 之人士援依本發明之精神所作之等效修飾或變化，皆應涵 蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明的電子裝置的結構示意圖。 圖2係本發明的電子裝置識別觸控物的方法的工作流 〇 程圖。 圖3係本發明的電子裝置上的觸控面板的結構示意 圖。 圖4及圖5分別是用筆尖和手指觸摸所述之觸控面板 所得到的電阻值示意圖。 【主要元件符號說明】 電子裝置 1 設置單元 10 獲取單元 11 12 201037573 觸控物識別單元 準確度優化單元 觸控面板 AD轉換器 處理器 13 14 15 16201037573 VI. Description of the invention: [Technical field to which the invention pertains] - an electronic device and a method for recognizing the touch object. [First-hand technology] With the development of society and the advancement of technology, touch-screen mobile phones with more user-friendly interfaces are becoming more and more popular. Touch-screen mobile phones See an increasing market share. This type of mobile phone has a common feature, that is, the screen is large, because it saves the place occupied by the keyboard, so the camp (4) has a large area. Today's smartphones, especially high-end, luxury phones, basically use a touch screen design. Handwriting input Pressing a finger on a difficult screen will cause the desired content to appear. Compared with the traditional keyboard design, the touch screen design is more aura, the design is more user-friendly, and the operation is more convenient. When you operate the touch screen mobile phone, you can't click or lose more accurately. Most of the screen mobile phones can't recognize whether the touch object is a finger or a big one. The processing done when receiving the click or input action is the same. , therefore, will lead to misuse. SUMMARY OF THE INVENTION In view of the above, a preferred embodiment of the present invention provides an electronic device and a method for recognizing a touch object thereof, which can recognize the type of the touch object and perform corresponding processing respectively to make the click or input action more accurate. The electronic device is equipped with a touch panel and an analog-to-digital converter. The electronic device includes: a setting 70 for setting a threshold value of the resistance 4 201037573 in the z-axis direction of the touch panel, the critical value The value is used to distinguish the touch object type; the _ obtaining unit is configured to acquire the current resistance value of the touch panel in the z-axis direction when the touch object is pressed by the touch panel of the electronic device; and the touch object The identification unit is configured to compare the current resistance value in the z-axis direction and the set threshold value to obtain the current type of the touch object. The electronic device is configured with a touch panel and an analog-to-digital converter. The method includes the steps of: setting a threshold value of a resistance value in a Z-axis direction of the touch panel, The threshold value is used to distinguish the touch object type; the touch object presses the touch panel of the electronic device; the current resistance value in the Z-axis direction of the touch panel is obtained; and the current resistance in the z-axis direction obtained by the comparison The value and the set threshold value to identify the current type of touch object. Compared with the prior art, the electronic device and the method for recognizing the touch object can identify the type of the touch object and adopt a corresponding processing manner to obtain a coordinate with higher accuracy. By utilizing the present invention, the accuracy of the input can be improved. The features and implementations of the present invention are described in detail with reference to the drawings. [Embodiment] Referring to Figure 1, there is shown a schematic structural view of an electronic device of the present invention. The electronic device 1 includes a touch panel 14 , an A/D (Analog to Digital) converter 15 , and a processor 16 . In the preferred embodiment, the touch panel 14 (shown in FIG. 3) 5 201037573 is a resistive touch panel, which mainly includes a four-wire, five-wire and eight-wire touch panel. Since the four-wire touch panel is low in cost and mature in technology, it is currently the most versatile specification. For convenience of description, in the embodiment, a four-wire electronic touch panel is used as an example. The touch panel 14 is plated with ITO (indium tin oxide) on the upper and lower layers, and the two layers of ITO are transparently insulated. Point, when the panel is not pressed, the upper and lower layers of ITO have a certain air layer and let it handle the non-conducting state. When the fingertips, nibs, or other objects are touching, the upper and lower layers will contact and conduct electricity. Wherein, the upper layer of the touch panel is regarded as an X axis, and the lower layer is regarded as a Y axis, and two conductive lines are respectively added at edges of the upper and lower layers, and the two conductive lines are respectively referred to as an X-axis conductive layer and a Y-axis conductive layer. The layer* simultaneously sets a fixed voltage on each of the upper and lower layers to make it a uniform electric field. The voltage value measured by the X-axis conductive layer is transmitted by the Y-axis conductive layer, and the voltage value measured by the Y-axis conductive layer is transmitted by the X-axis conductive layer, so rapidly alternating and transmitting the above voltage value to A/ The D converter 15 converts to a coordinate value of the corresponding digital signal ^, which is transmitted to the processor 16 to identify the user's click action or input stroke or the like. In addition, the touch panel 14 further includes a Z-axis, which is mainly used to measure the resistance between the upper and lower layers of ITO. The electronic device 1 may be an electronic device in which a touch panel 14 and an A/D converter 15 are mounted, such as a mobile phone, a PDA (personal digital assistant), a handheld game console, a digital camera, or a palmtop computer. The electronic device 1 further includes a setting unit 10, an obtaining unit 11, a touch object recognizing unit 12, and an accuracy optimizing unit 13. The setting unit 10 is configured to set a threshold value of 6 201037573 in the Z-axis direction, and the threshold value is mainly used to distinguish the touch object type of the touch panel 14 . In the preferred embodiment, the touch object type mainly refers to a nib and a fingertip. As shown in FIG. 4, when the resistance value in the z-axis direction when the touch object touches the touch panel 14 is greater than the threshold value, the identification compensation is a pen tip; however, as shown in FIG. 5, When the resistance value of the touch object touched by the touch panel 140 in the z-axis direction is less than the threshold value, it is recognized that the touch object is a fingertip.获取 > The acquisition unit U obtains the current resistance value and voltage value in the Z-axis direction when the touch object touches the chi panel μ. The touch object recognition unit 12 is configured to compare the current resistance value of the acquired z-axis direction with a set threshold value, and identify the touch object type according to the comparison result. Specifically, when the obtained resistance value in the z-axis direction is greater than the set threshold value, the touch object is identified as a pen tip; instead, the current resistance value in the acquired Z-pitch direction is less than The set threshold value identifies the touch object as a fingertip. The accuracy optimizing unit 13 is further configured to optimize the quasi-breakage degree when the touch object is identified as a fingertip. 2 is a schematic diagram of a method for recognizing a touch object by the electronic device of the present invention. The step is to set a critical value of the resistance value in the direction of the two axes. The threshold value is used to distinguish the touch object type of the touch panel 14 in the preferred embodiment. The type of object mainly refers to; = fingertips. When the touch object touches the touch panel 14 and the z-axis direction=7 201037573 resistance value is greater than the threshold value, the touch object is recognized as a nib; however, when the touch object touches the touch When the resistance value in the Z-axis direction when the panel 14 is controlled is smaller than the threshold value, it is recognized that the touch object is a fingertip. In step S202, after the touch panel is touched by the touch object, the user obtains the current resistance value in the Z-axis direction and acquires the voltage value generated when the touch panel 14 is obtained. In step S203, it is determined whether the current resistance value in the Z-axis direction is greater than a set critical value. ® Step S204, when the current resistance value in the Z-axis direction is greater than the set threshold value, the touch object is identified as a nib. As shown in FIG. 4, the current resistance value in the Z-axis direction is greater than a critical value. Step S205, after identifying the touch object as a pen tip, transmitting the generated voltage value to the A/D converter 15 to convert to a coordinate value of the X and Y axes. In step S206, the processor 16 identifies the stroke or the click action according to the coordinate value. Step S207, determining whether the touch panel 14 receives the point pressure of the tip. When the point pressure of the pen tip is not received, the flow returns to step S205; conversely, the flow ends. In step S203, when the resistance value in the Z-axis direction is less than the critical value, the process proceeds to step S208, where it is recognized that the touch object is a fingertip. As shown in FIG. 5, the current resistance value in the Z-axis direction is smaller than the critical value. Step S209, after identifying the touch object as a fingertip, transmitting the generated voltage value to the A/D converter 15 to be converted into coordinates of the X and Y axes 201037573. Step S210, using filtering noise points and lines Smoothing and other methods are used to optimize the accuracy to obtain the coordinates of the more commonly married. In step S211, the processor 16 identifies the stroke or the click action according to the coordinate value. Step S212, determining whether the touch panel 14 receives the point pressure of the fingertip. When the point pressure of the fingertip is not received, the flow returns to step S209; conversely, the flow ends. In summary, the present invention complies with the requirements of the invention patent, and proposes a special patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of an electronic device of the present invention. 2 is a workflow diagram of a method for identifying a touch object by an electronic device of the present invention. Fig. 3 is a schematic view showing the structure of a touch panel on the electronic device of the present invention. 4 and 5 are schematic diagrams showing resistance values obtained by touching the touch panel with a pen tip and a finger, respectively. [Main component symbol description] Electronic device 1 Setting unit 10 Acquisition unit 11 12 201037573 Touch object recognition unit Accuracy optimization unit Touch panel AD converter Processor 13 14 15 16
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