201102898 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種觸控輸入裝置以及觸控感測電路， 且特別疋有關-種可抑制電磁干擾的觸控輸入裝置與觸控 感測電路。 【先前技術】 由於科技日益進步’帶動資訊、通訊、電子等產品愈 $愈多兀化及人性化。舉例而言，透過觸控面板、手寫板 等產品’使用者即可直接以手指或觸控筆在面板上操作程 式或輸入訊息，省去以往使用滑鼠或鍵盤等輸入裝置的麻 煩。 現有的觸控面板之技術大致可分為電阻式、電容式、 光學式以及超音波式幾種。電阻式觸控面板其主要組成包 括上下兩層氧化銦錫導電玻璃(IT0 glass)。當物體碰觸上 層導電玻璃使其凹陷而與下層導電玻璃接觸時，該面板的 控制器將偵測出一電壓信號，並據此判斷接觸點的座標位 置。 電容式觸控面板又分為表面電容式觸控面板與投影電 容式觸控面板。表面電容式觸控面板的結構組成包括一塊 導電玻璃，在導電玻璃兩面皆塗佈有導電材料，且導電坡 璃的外侧會再覆上一層防刮塗膜。玻璃板周圍的電極會在 玻璃表面形成一均勻電場。每當使用者以手指觸控面板， 其手指就會與外側導電層上的電容耦合，吸去面板上微小 201102898 的電流。從位於觸控面板各角落的電極流出的電流量與手 指到角落的距離成正比，觸控面板之控制器通過對這電流 比例的計算得出接觸點的位置資訊。 而近來，投影電容式觸控面板更是廣泛用於各種觸控 電子裝置(如智慧型手機）。投影電容式觸控面板的定位原 理是利用埋設於觸控面板内的感應網格之電容變化來判斷 接觸點的位置。請參閱圖一 A，圖一 A續'示先前技術中 觸控面板10的示意圖。如圖一 A所示，觸控面板1〇以 分層方式埋設有複數條X方向導線（包含XI〜Xm)以及複 數條Y方向導線(包含Y1〜Yn)。X方向導線與Y方向導 線交錯排列共同形成感應網格，在每個X方向導線與Υ 方向導線的交叉點即形成一個電容節點(例如圖一 Α中電 容節點100a、100b、100c)，例如於此例中，共有m*n個 電容節點。當手指觸摸螢幕的時候，手指對感應網格的耦 合關係將改變感應網格上鄰近之電容節點之電容值。偵測 電路方可利用感應網格上的電容節點之電容變化量來計算 接觸點的座標位置。 請一併參閱圖一 B，圖一 B繪示先前技術中觸控輸入 裝置1的示意圖。如圖一 B所示，先前技術中的觸控輸 入裝置1包含了配合觸控面板1〇使用的觸控感測電路。 觸控感測電路内部可包含多工選擇器12、控制電路120、 偵/則模組14。實際電路中，偵測模組14可為電容量測電 路0 實際應用中’控制電路120可控制多工選擇器12 ’ 201102898 多工繼12選擇特定的χ方向導線⑻〜xm)與 Y方向導線ΟΠ〜Yn)，以選疋特定的電”點 選擇器12可選擇X方向導線Χ3與γ方向導線⑴ς 應到電容節點l〇〇a。偵須'J模紐14亦太止上201102898 VI. Description of the Invention: [Technical Field] The present invention relates to a touch input device and a touch sensing circuit, and particularly to a touch input device and touch sensing capable of suppressing electromagnetic interference Circuit. [Prior Art] As technology advances, the products, communications, electronics and other products are becoming more and more user-friendly. For example, users such as touch panels and tablets can directly use the finger or stylus to operate the program on the panel or input messages, eliminating the hassle of using input devices such as a mouse or keyboard. The technology of the existing touch panel can be roughly classified into a resistive type, a capacitive type, an optical type, and an ultrasonic type. The main components of the resistive touch panel include upper and lower layers of indium tin oxide conductive glass (IT0 glass). When the object touches the upper conductive glass to be recessed to contact the underlying conductive glass, the controller of the panel detects a voltage signal and determines the coordinate position of the contact point accordingly. The capacitive touch panel is further divided into a surface capacitive touch panel and a projected capacitive touch panel. The structure of the surface capacitive touch panel comprises a conductive glass coated with conductive material on both sides of the conductive glass, and the outer side of the conductive glass is further coated with a scratch-resistant coating film. The electrodes around the glass plate create a uniform electric field on the surface of the glass. Whenever the user touches the panel with a finger, his finger is coupled to the capacitive capacitance on the outer conductive layer to absorb the current of the tiny 201102898 on the panel. The amount of current flowing from the electrodes located at each corner of the touch panel is proportional to the distance from the finger to the corner. The controller of the touch panel obtains the position information of the contact point by calculating the current ratio. Recently, projected capacitive touch panels are widely used in various touch electronic devices (such as smart phones). The positioning principle of the projected capacitive touch panel is to determine the position of the contact point by using the capacitance change of the sensing grid embedded in the touch panel. Referring to FIG. 1A, FIG. 1A is a schematic view showing the touch panel 10 in the prior art. As shown in FIG. 1A, the touch panel 1 is embedded in a plurality of X-directional wires (including XI to Xm) and a plurality of Y-directional wires (including Y1 to Yn) in a layered manner. The X-directional wires and the Y-directional wires are alternately arranged to form an inductive grid, and a capacitance node is formed at the intersection of each of the X-directional wires and the 方向-directional wires (for example, the capacitor nodes 100a, 100b, and 100c in FIG. 1), for example, In this example, there are a total of m*n capacitor nodes. When the finger touches the screen, the coupling of the finger to the sensing grid will change the capacitance of the adjacent capacitive node on the sensing grid. The detection circuit can use the capacitance change of the capacitor node on the sensing grid to calculate the coordinate position of the contact point. Please refer to FIG. 1B. FIG. 1B is a schematic diagram of the touch input device 1 of the prior art. As shown in FIG. 1B, the touch input device 1 of the prior art includes a touch sensing circuit used in conjunction with the touch panel. The touch sensing circuit can include a multiplexer 12, a control circuit 120, and a Detector module 14 therein. In the actual circuit, the detection module 14 can be a capacitance measuring circuit. 0 In practical applications, the control circuit 120 can control the multiplexer 12 ' 201102898. The multiplexer 12 selects a specific χ direction wire (8) ~ xm) and the Y direction wire. ΟΠ~Yn), to select the specific electric "point selector 12", the X-direction wire Χ3 and the γ-directional wire (1) can be selected to the capacitance node l〇〇a. The Detective 'J-mould 14 is too long.
Sdet，並將偵測脈波訊號Sdet透過多工偵麻波訊號 w夕工選擇器12輪入至雷 =芦點1〇〇a。隨後’侧模組14可根據輸入至電容節點 l〇〇a之制脈波訊號Sdet的訊—饋進而判斷電容節點 100a之觸控偵測狀態。 控制電路！20亦可控制多工選擇器12， 選定一條X或Y方向導線，以逐行/逐列方式 知描電谷郎點（等效為-次_ —整行或—整列的電容節 點）。请參閱圖二，圖二緣不觸控輸人裝置ι對不同電容 節點產生_脈波訊號Sdet的時序示_。賴二可知，债 測脈波訊號Sdet依序被輸入至X!、幻、幻、χ4 方 向導線。 ，處之偵繼;纽號Sdet通常為具有高頻輕期性脈波 的電壓訊號或電流喊。當偵測· 14將這些高賴測脈 波訊號輸人特定的電容節點(如電容節點臟)時，將對電子 ^统中鄰近觸控面板10的其它電子元件(例如液晶顯示屏 幕等)造〃成電磁干擾㈣象，亦可能對鄰近的電容節點(例 如電容節點l〇〇b，100c)造成電磁干擾。 在現5觸控面板精確度逐步提高的要求之下，設計者 急欲縮小觸控訊號判_的誤差。另-方面，在各種消費 性電子裝置的體積愈來愈薄型化的驅勢之下，消除或避免 201102898 不同電子元件之間電磁干擾也成為很重要的課題。 本發明提出—種觸控輸人裝置，其可抑 廣泛適用於各_控輸人的電子純，_決上述問並 【發明内容】 本發明之—料在於提供—麵控輸人t置，复勺八 觸控面板、選擇Hx及彳貞賴組。 3 板ΐ。選擇模組與觸控面板之該複數個電 ’選擇模組於該複數個電容節點中選昂 一 集合以及第二電容節點集合。此處的第-、 :電：郎點集合分別包含至少一個電容節點，且第 郎點集合係鄰近第一電容節點集合。 施例’觸控面板包含複數個電容節點形成並 =測__擇馳連接，姻馳包含訊號產 被ί入ίί脈波訊號，偵測脈波訊號透過選擇^組 至第—電谷節點集合，彳貞測模組根據被輸入至第-電f節點集合之侧脈波減觸S—電 =測狀態，錢號產生器-併產生與_脈波^相= 相反之反相脈波訊號，反相脈波訊號透過選擇模組被 至第二電容節點集合。 本發明之另一範嘴在於提供一種觸控輸入裝置，其包 3觸控面板、選擇模組、第一偵測模組以及第二偵測模 系且0 ' 、根據一實施例，觸控面板包含複數個電容節點，形成 並分佈於該觸控面板上。選擇模組與觸控面板之該複數個 201102898 性連接’選擇模組於該複數個電容節點中選取 ί ί =點集合以及第二電容節點集合。此處的第一、 二合分別包含至少—個電容節點，且第二電 夺即點集5係鄰近第一電容節點集合。 ，一偵測模組與選擇模組電性連接，偵測模組包含第 產生器用以產生第一偵測脈波訊號，第一偵測脈波 訊號透過選擇模組被輸人至第—電容節點集合，第一債測 ^ ft據被輸人至第電容節點集合之第-偵測脈波訊號 Ί斷第一電容節點集合之第一觸控偵測狀態。第二偵測模 、^與選擇模組電性連接，第二彳貞測模組包含第二訊號產生 ，用以產生第二伽1脈波訊號，其中第二制脈波訊號與 第一偵測脈波訊號相位相反，第二偵測脈波訊號透過選擇 模組，輸入至第二電容節點集合，第二偵測模組根據被輸 入至第一電容節點集合之第二偵測脈波訊號判斷第二電容 節點集合之第二觸控偵測狀態。 關於本發明之優點與精神可以藉由以下的發明詳述及 所附圖式得到進一步的瞭解。 【實施方式】 請參閱圖三。圖三繪示根據本發明之第一具體實施例 中的觸控輸入裝置3的示意圖。觸控輸入裝置3包含觸控 面板30、選擇模組32以及偵測模組34。 於此實施例中，觸控面板30包含複數條X方向導線 (XI〜Xm)以及複數條Y方向導線(Y1〜Yn)，X方向導線與 Υ方向導線彼此排列呈網格狀，如圖三中X、Υ方向導、& 為水平 '垂直交錯排列形成井字狀網格，但本發明並不^ 201102898 其亦可適用於其他方向或角度的 而在母一個X方向導線與γ方向導線交 卩 節點(如圖三中3GG)。也就是說’觸控面板包^複數個 =點’分珊應其中-條X方向導線與其巾—條γ 成並分佈於該觸控面板3G。於實_用中、“ g可為投影式電控面板或其他具她㈣電容觸^面Sdet, and will detect the pulse signal Sdet through the multiplexed detective wave signal w Xigong selector 12 round to the mine = aloe point 1 〇〇 a. Then, the side module 14 can determine the touch detection state of the capacitor node 100a according to the signal feed of the pulse signal Sdet input to the capacitor node l〇〇a. Control circuit! 20 can also control the multiplex selector 12, select a wire in the X or Y direction, and describe the electric valley point (equivalent to - times _ - whole row or - column of capacitor nodes) in a row-by-row/row by column manner. Please refer to FIG. 2, which shows the timing of the _pulse signal Sdet generated by different input nodes. Lai Er knows that the debt measurement signal Sdet is sequentially input to the X!, Magic, Magic, and χ4 direction wires. The detection of the Sdet is usually called a voltage signal or current with a high-frequency light pulse. When the detection 14 inputs the high-frequency pulse signal to a specific capacitor node (such as a dirty capacitor node), it will be made to other electronic components (such as a liquid crystal display screen) adjacent to the touch panel 10 in the electronic system. Electromagnetic interference (4), which may also cause electromagnetic interference to adjacent capacitor nodes (such as capacitor nodes l〇〇b, 100c). Under the gradual improvement of the accuracy of the current 5 touch panels, designers are anxious to reduce the error of the touch signal judgment. On the other hand, under the circumstance that the volume of various consumer electronic devices is becoming thinner and thinner, it is also an important issue to eliminate or avoid electromagnetic interference between different electronic components of 201102898. The invention provides a touch input device, which can be widely applied to the electronic purity of each control person, and the invention is based on the fact that the present invention provides a face-to-face control input. Set up eight touch panels, select Hx and smash the group. 3 board. The plurality of electrical selection modules of the selection module and the touch panel select a set of the plurality of capacitive nodes and a second set of capacitive nodes. Here, the -, : electric: lang point set respectively includes at least one capacitive node, and the lang-point set is adjacent to the first capacitive node set. The example of the touch panel includes a plurality of capacitor nodes forming and measuring the connection of the __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The detection module is based on the side pulse wave input to the first-electric f-node set minus the S-electricity=measurement state, the money generator-and the opposite-phase pulse wave signal which is opposite to the _pulse wave phase= The inverted pulse signal is sent to the second capacitive node set through the selection module. Another embodiment of the present invention provides a touch input device, which includes a touch panel, a selection module, a first detection module, and a second detection module, and 0′, according to an embodiment, the touch The panel includes a plurality of capacitor nodes formed and distributed on the touch panel. The plurality of 201102898 connection "selection modules" of the selection module and the touch panel select ί ί = point set and second capacitance node set among the plurality of capacitance nodes. Here, the first and second combinations respectively comprise at least one capacitive node, and the second electrical, ie, point set 5, is adjacent to the first capacitive node set. The detection module is electrically connected to the selection module, and the detection module includes a generator for generating the first detection pulse signal, and the first detection pulse signal is input to the first capacitor through the selection module. The node set, the first debt measurement data is input to the first-detection pulse wave signal of the first capacitive node set to break the first touch detection state of the first capacitive node set. The second detecting module is electrically connected to the selecting module, and the second detecting module includes a second signal generated to generate a second gamma pulse signal, wherein the second pulse signal and the first detecting The pulse signal is opposite in phase, and the second detecting pulse signal is input to the second capacitive node set through the selection module, and the second detecting module is configured according to the second detecting pulse signal input to the first capacitive node set. Determining a second touch detection state of the second capacitive node set. The advantages and spirit of the present invention will be further understood from the following detailed description of the invention. [Embodiment] Please refer to Figure 3. FIG. 3 is a schematic diagram of the touch input device 3 in the first embodiment of the present invention. The touch input device 3 includes a touch panel 30, a selection module 32, and a detection module 34. In this embodiment, the touch panel 30 includes a plurality of X-directional wires (XI~Xm) and a plurality of Y-directional wires (Y1~Yn), and the X-directional wires and the Υ-directional wires are arranged in a grid shape, as shown in FIG. Medium X, Υ directional, & horizontally 'vertically staggered to form a well-shaped grid, but the invention is not ^ 201102898 It can also be applied to other directions or angles in the parent X-direction wire and γ-directional wire Exchange node (3GG in Figure 3). That is to say, the touch panel package has a plurality of points = points, and the strips of the X-direction wires are distributed to the touch panel 3G. In the actual _ use, "g can be a projection type electronic control panel or other with her (four) capacitor touch ^ surface
㈣^三所示，選擇模組32與觸控面板3G之該等電容節 點電性連接。偵測模組34與選擇模組32電性連接。 於此實施例中，選擇模組32進一步包含第一多工 322、第二多工麵器324以及用啸制 器= 制電路320。第-多工選擇器322與第二多工選 別耗接於觸控面板30以及偵測模組34之間。第一多工、辱^ 器322以及第二多工選擇器324分別與觸控面板3〇之乂方 向導線(XI〜Xm)以及Y方向導線(Υΐ〜γη)電性連接。 選擇模組32可利用控制電路320控制第一多工選擇 322以及第二多工選擇器324自觸控面板30上所有的電容^ 點中分別選取第一電容節點集合以及第二電容節點集合即 此處的第一、第二電容節點集合分別包含至少一個^容ρ 點’且於本發明中第^一多工選擇器324所選取的第二電容 節點集合係被設計為鄰近第一多工選擇器322所選取的^ 一電容節點集合。 需特別說明的是，此處的第一電容節點集合以及第二 電容節點集合可包含至少一個電容節點。於實際應用中丁 電容節點集合為一個電容節點、多個鄰近的電容節點、一 整行或一整列的多個電容節點。 ~ 201102898 以下主要列舉三種電容節點集合的選取實例作為簡要 說明。 請參閱圖四A、圖四B與圖四C。圖四A至圖四C 分別繪示第一電容節點集合N1以及第二電容節點集合 N2的三種選取實例示意圖。 如圖四A所示，第一多工選擇器所選取的第一電容節 點集合N1可包含單一個電容節點300a，而第二多工選擇 器所選取的第二電容節點集合N2可包含單一個電容節點 300b。第一多工選擇器自該複數條X方向導線選擇其中 一條X方向導線(如圖四A中的X3)並自該複數條Y方向 導線選擇其中一條Y方向導線(如圖四A中的Y3)，藉此 選取電容節點300a以形成第一電容節點集合N1。另一方 面，第二多工選擇器自該複數條X方向導線選擇其中一 條X方向導線(如圖四A中的X3)並自該複數條Y方向導 線選擇其中一條Y方向導線(如圖四A中的Y2)，藉此選 取電容節點300b以形成第二電容節點集合N2。 如圖四B所示，第一多工選擇器所選取的第一電容節 點集合N1可包含多個電容節點300a'，而第二多工選擇器 所選取的第二電容節點集合N2亦可包含多個電容節點 300b’。第一多工選擇器自該複數條X方向導線選擇至少 一條X方向導線(如圖四B中的XI〜X3)並自該複數條Y 方向導線選擇至少一條Y方向導線(如圖四B中的Y3)， 藉此選取至少一電容節點3 00a'以形成第一電容節點集合 N1。第二多工選擇器自該複數條X方向導線選擇至少一 條X方向導線(如圖四B中的XI〜X3)並自該複數條Y方 向導線選擇至少一條Y方向導線(如圖四B中的Y2)，藉 此選取至少一電容節點300b'以形成第二電容節點集合 201102898 N2。 如圖四C所不，第一多工選擇器所選取的第一電容節 點集合N1可包含-整行或一整列的電容節點，而第二多 工選擇器所選取的第一電容節點集合N2亦可包含一整行 或一整列的電容節點。如圖四C的選取實例中，第一多 工選擇器選擇其中-條X方向導線χ3並將該複數條γ 方向導線(Υ1〜Υη)接地或空接，藉此以選取對應 X方向導 線Χ3的所有電容節點並形成第—電容節點集合N]l。於 ^同時’ 一第二多工選擇器，輕接於該觸控面板以及該偵 =模組之間，該第二多工選擇器與該觸控面板之該複數條 方向導線以及該複數條γ方向導線電性連接，該選擇 過該第二多工選擇器自該複數條X方向導線選擇 =第二X方向導線X2並將該複數條γ方向導線(Y1〜Yn) 地或空接，藉此以選取對應該第二X方向導線的所 有電容節點並形成該第二電容節點集合Ν2。 —綜合上面選取實例，本發明中選取電容節點形成電容 =的作法至少包含了水平或垂直方向的—衫條導線上 φ 鄰節點。也就是說，本發明中電容節點集合的選取可 點、水平方向延伸、垂直方向延伸或是區塊式等各種 &取方式。 下列段落以圖四A的選取實例做進一步說明，煩請同 =多，圖三以及圖四A。如圖三所示，偵測模組34包含訊號 器340用以產生偵測脈波訊號Sdet，偵測脈波訊號Sd^t 二，過選擇模組32的第一多工選擇器322被輸入至第一電 點集合N1(請參照圖四A) ’偵測模組34根據被輸入至 —電容節點集合N1之偵測脈波訊號Sdet判斷第一電 奋筇點集合N1之觸控偵測狀態。 201102898 例如當使用者接觸觸控面板30上電容節點300a(即為 本例中第一電容節點集合N1)的位置時，將造成電容節點 300a發生電容值變化。此時，對應該電容值變化，偵測 模組34即可根據被輸入至第一電容節點集合N1的偵測脈 波訊號Sdet之訊號回饋(signal feedback)，進而得知第一電容 節點集合N1的觸控偵測狀態。 需特別注意的是，於本發明中當偵測模組34的訊號 產生器340產生偵測脈波訊號sdet至第一電容節點集合 N1的同時’亦一併產生與偵測脈波訊號Sdet相位相反之 反相脈波訊號Sinv，如圖三所示於此實施例中，反相脈 波訊號Sinv可基於偵測脈波訊號Sdet通過簡單的反相電 路產生，但本發明並不以此為限。於另一實施例中，亦可 獨立設置兩組同步但反相輸出的訊號產生器分別產生或以 其他讯號反相之方法產生，此為習知技藝之人所熟知，在 此不另贅述。此處之反相脈波訊號Sinv透過選擇模組32 被輸入至鄰近第-電容節點#合犯的第二電容節點集合 〇 明一併參閱圖五，圖五繪示觸控輸入裝置3依序對不 同電容節點集合產生侧脈波· Sdet以及反相脈波訊號 Smv的時序示意圖。_五可知，在—個特定_測週期内 (如圖五中的時間點to到時間點tl)，_模組34同時產生 制脈波訊號Sdet以及反相脈波减Sinv並輸人至鄰近 的兩組電容節點集合中。如此—來，_脈波訊號_ 可用以感測電容即點的觸控偵測狀態，而同時，與其反相 =反相脈波訊號Sinv可肖財卩湘測脈波訊號_對其 件的，輻射干擾’亦有助於抑制偵測脈波訊號 Sdet對其他電容節點的電磁傳導干擾。 201102898 綜上所述，觸控輸入裝置3透過產生與偵測脈波訊號 Sdet反相的反相脈波訊號Sinv，並輸入至欲偵測的電容 節點集合附近，以降低偵測脈波訊號Sdet產生的電磁干 擾影響，但本發明並不以此為限。 請參閱圖六。圖六繪示根據本發明之第二具體實施例 中的觸控輸入裝置5的示意圖。與第一具體實施例的最大 不同之處在於，觸控輸入裝置5共包含兩組偵測模組，如 圖五中的第一偵測模組54與第二偵測模組56。 於此實施例中，第一偵測模組54與第二偵測模組56 分別包含各自的訊號產生器（540、560)以產生第一偵測脈 波说號S det+以及第二偵測脈波訊號s det-。第一偵測脈波 訊號Sdet+可透過選擇模組52被輸入至第一電容節點集 合，用以判斷第一電容節點集合之觸控偵測狀態。第二偵 測脈波訊號Sdet-可透過選擇模組52被輸入至鄰近第一電 谷節點集合的第二電容節點集合，用以判斷第二電容節點 集合之觸控偵測狀態。 需特別說明的是，第一偵測脈波訊號^故+與第二偵 測脈波訊號Sdet-彼此反相，也就是說，第一偵測脈波訊 號Sdet+與第二偵測脈波訊號sdet-互相抑制彼此的電磁干 擾，提高系統的穩定性。且另一方面，第一偵測模組54 與第二偵測模組56可同時根據第一偵測脈波訊號Sdet+ 與第二偵測脈波訊號Sdet-分別判斷兩個電容節點集合的 觸控偵測狀態，理論上可將觸控偵測的判斷速度提高至少 兩倍。晴參閱圖七。圖七繪示觸控輸入裝置5依序對不同 電容節點集合產生第一偵測脈波訊號Sdet+以及第二偵測 13 201102898 脈波訊號Sdet-的時序示意圖。 舉例來說，圖七所對應的偵測可為第一偵測模組54 X方向導線X3輸入第一偵測脈波訊號Sdet+，而所由 方向導線(Y1〜Yn)接地或空接，以選取對應χ3的 ^ 容節點形成第一電容節點集合Ν卜即制是否 龍 生在(Χ3，Υ1〜Yn)_L。第二積測模组56 * X方向導線: 輸入第二偵測脈波訊號Sdet_，並將所有Y方向 (Y1〜γη)接地或空接，以選取對應X4的所有電 = 成第二電容節點集合Ν2，即偵測是否有觸控 / 綜上所述，於本發明的觸控輸入裝置5中，所 ^電容節雜與郷二電容節_合其組紅電容節點的相 恤置關係並不限制於垂直或水平相鄰關係。例如於另 作實例中’每個電容節點組内可包含水平相鄰、環形、方 形、斜線或其他幾何_排列的相鄰近的電容節點而成，並 的組成數目亦不限定為單個，亦可為兩個或兩_ =夕數個電容節點，皆可朗她錢快速_測判斷的 效果。於第二具體實施财觸控輸人㈣5其他内部元件的 作動及原理與第-频實_大致綱，在此不另資述。 較於先前技術’本發縣—組彼朗步但反向的脈波 心號輸入相鄰電容節點或相鄰的電容節點組，進行觸減態 =债測判斷’侧脈波信朗彼此反向的嶋降低對系統中 其他元件的電磁預，可提高馳輪4置的穩定性。 藉由以上較佳具體實施例之詳述，係希望能更加清楚 201102898 f本發明之特徵與精神，而並非以上述所揭露的較佳具 體實，例^對本發明之範.加以限制。相反地，其目的是 希蓋各種改變及具相等性的安排於本發明所欲申請 之專利範圍的範缚内。 201102898 【圖式簡早說明】 圖一 A繪示先前技術中一種觸控面板的示意圖。 圖一 B I會示先前技術中一種觸控輸入裝置的示意 圖。 圖二繪示先前技術中觸控輸入裝置對不同電容節點產 生偵測脈波訊號的時序示意圖。 圖三繪示根據本發明之第一具體實施例中的觸控輸入 · 裝置的示意圖。 圖四A繪示第一電容節點集合以及第二電容節點集 合的選取實例示意圖。 圖四B繪示第一電容節點集合以及第二電容節點集 合的選取實例示意圖。 圖四C繪示第一電容節點集合以及第二電容節點集 $ 合的選取實例示意圖。 圖五繪示第一具體實施例中觸控輸入裝置依序對不同 電容節點集合產生偵測脈波訊號以及反相脈波訊號的時序 示意圖。 圖六繪示根據本發明之第二具體實施例中的觸控輸入 裝置的示意圖。 圖七繪示第二具體實施例中觸控輸入裝置依序對不同 16 201102898 電容節點集合產生第一偵測脈波訊號以及第二偵測脈波訊 號的時序示意圖。 【主要元件符號說明】 1、3、5 :觸控輸入裝置 1〇、30、50 :觸控面板 12、32、52 :觸控感測電路 100a、100b、100c、3〇〇a、300b、300c :電容節點(4) As shown in FIG. 3, the selection module 32 is electrically connected to the capacitor nodes of the touch panel 3G. The detection module 34 is electrically connected to the selection module 32. In this embodiment, the selection module 32 further includes a first multiplexer 322, a second multiplexer 324, and a squeegee=system 320. The first multiplexer 322 and the second multiplexer are consuming between the touch panel 30 and the detection module 34. The first multiplexer, the humiliator 322, and the second multiplexer 324 are electrically connected to the directional wires (XI to Xm) of the touch panel 3A and the Y-directional wires (Υΐ~γη), respectively. The selection module 32 can control the first multiplex selection 322 and the second multiplexer 324 to select a first set of capacitance nodes and a second set of capacitance nodes from all the capacitance points on the touch panel 30 by using the control circuit 320. The first and second sets of capacitive nodes herein respectively comprise at least one ρ point ′ and the second set of capacitive nodes selected by the multiplexer 324 in the present invention is designed to be adjacent to the first multiplex. A set of capacitance nodes selected by the selector 322. It should be particularly noted that the first set of capacitive nodes and the second set of capacitive nodes herein may include at least one capacitive node. In practical applications, the D-capacitor nodes are assembled into a capacitor node, a plurality of adjacent capacitor nodes, a whole row or an entire column of capacitor nodes. ~ 201102898 The following is a brief description of the selection of three sets of capacitor nodes. Please refer to Figure 4A, Figure 4B and Figure 4C. FIG. 4A to FIG. 4C respectively show three examples of selection examples of the first capacitive node set N1 and the second capacitive node set N2. As shown in FIG. 4A, the first capacitive node set N1 selected by the first multiplex selector may include a single capacitive node 300a, and the second capacitive node set N2 selected by the second multiplex selector may include a single one. Capacitor node 300b. The first multiplexer selects one of the X-directional wires (X3 in FIG. 4A) from the plurality of X-directional wires and selects one of the Y-directional wires from the plurality of Y-directional wires (FIG. 4A, Y3) Thereby, the capacitor node 300a is selected to form a first set of capacitive nodes N1. On the other hand, the second multiplexer selects one of the X-directional wires (X3 in FIG. 4A) from the plurality of X-directional wires and selects one of the Y-directional wires from the plurality of Y-directional wires (FIG. 4). Y2) in A, whereby the capacitor node 300b is selected to form a second set of capacitive nodes N2. As shown in FIG. 4B, the first capacitive node set N1 selected by the first multiplexer may include a plurality of capacitive nodes 300a', and the second capacitive node set N2 selected by the second multiplexer may also include A plurality of capacitor nodes 300b'. The first multiplexer selects at least one X-directional wire from the plurality of X-directional wires (see XI to X3 in FIG. 4B) and selects at least one Y-directional wire from the plurality of Y-directional wires (as shown in FIG. 4B). Y3), thereby selecting at least one capacitive node 300a' to form a first set of capacitive nodes N1. The second multiplexer selects at least one X-directional wire from the plurality of X-directional wires (see XI to X3 in FIG. 4B) and selects at least one Y-directional wire from the plurality of Y-directional wires (as shown in FIG. 4B). Y2), thereby selecting at least one capacitive node 300b' to form a second set of capacitive nodes 201102898 N2. As shown in FIG. 4C, the first capacitive node set N1 selected by the first multiplexer may include an entire row or an entire column of capacitive nodes, and the second multiplexer selects the first capacitive node set N2. It can also contain an entire row or an entire column of capacitor nodes. In the selected example of FIG. 4C, the first multiplexer selects one of the X-directional wires χ3 and grounds or vacates the plurality of γ-directional wires (Υ1~Υη), thereby selecting the corresponding X-direction wire Χ3. All of the capacitor nodes form a first-capacitor node set N]l. a second multiplexer is lightly connected between the touch panel and the sniffer module, the second multiplexer and the plurality of directional wires of the touch panel and the plurality of The γ-directional wires are electrically connected, and the second multiplexer selects the plurality of X-directional wires from the plurality of X-directional wires to select the second X-directional wires X2 and connects the plurality of γ-directional wires (Y1 to Yn) to the ground. Thereby, all the capacitor nodes corresponding to the second X-directional wires are selected and the second capacitive node set Ν2 is formed. - Combining the above selected examples, the method of selecting a capacitor node to form a capacitance = in the present invention includes at least a horizontal or vertical direction - a neighboring node on the woven wire. That is to say, in the present invention, the selection of the set of capacitor nodes can be selected in various ways, such as point, horizontal extension, vertical extension, or block type. The following paragraphs are further illustrated by the selected examples in Figure 4A. Please use the same as =, Figure 3 and Figure 4A. As shown in FIG. 3, the detection module 34 includes a signal 340 for generating a detection pulse signal Sdet, and detecting a pulse signal Sd^t. The first multiplex selector 322 of the selection module 32 is input. To the first electrical point set N1 (please refer to FIG. 4A), the detecting module 34 determines the touch detection of the first electric point set N1 according to the detected pulse signal Sdet input to the capacitive node set N1. status. 201102898 For example, when the user touches the position of the capacitor node 300a on the touch panel 30 (that is, the first capacitor node set N1 in this example), the capacitance value of the capacitor node 300a will change. At this time, corresponding to the change of the capacitance value, the detecting module 34 can know the signal feedback of the detected pulse signal Sdet input to the first capacitive node set N1, thereby knowing the first capacitive node set N1. Touch detection status. It should be noted that, in the present invention, when the signal generator 340 of the detecting module 34 generates the detecting pulse signal sdet to the first capacitive node set N1, it also generates and detects the pulse signal Sdet phase. In contrast, the inverted pulse signal Sinv, as shown in FIG. 3, in this embodiment, the inverted pulse signal Sinv can be generated by a simple inverter circuit based on the detected pulse signal Sdet, but the present invention does not limit. In another embodiment, two sets of synchronized but inverted output signal generators may be separately generated or generated by other signals, which are well known to those skilled in the art and will not be described herein. . Here, the inversion pulse signal Sinv is input to the second capacitor node set adjacent to the first capacitor node through the selection module 32. Referring to FIG. 5, FIG. 5 shows the touch input device 3 in sequence. A timing diagram for generating a side pulse wave · Sdet and an inverted pulse wave signal Smv for different sets of capacitance nodes. _5, in the specific _ test period (as shown in Figure 5 time point to time point tl), _ module 34 simultaneously generates the pulse signal Sdet and the inverse pulse minus Sinv and input to the vicinity The two sets of capacitor nodes are in the set. So - _ pulse signal _ can be used to sense the capacitance of the touch detection state of the point, while at the same time, its inverse = reverse pulse signal Sinv can Xiaocai Xiangxiang pulse signal _ its , Radiation interference' also helps to suppress the electromagnetic conduction interference of the pulse signal Sdet to other capacitor nodes. 201102898 In summary, the touch input device 3 generates an inverted pulse signal Sinv which is inverted from the detected pulse signal Sdet and is input to the vicinity of the set of capacitance nodes to be detected to reduce the detection pulse signal Sdet. The electromagnetic interference generated is affected, but the invention is not limited thereto. Please refer to Figure 6. Figure 6 is a schematic diagram of a touch input device 5 in accordance with a second embodiment of the present invention. The maximum difference from the first embodiment is that the touch input device 5 includes a plurality of detection modules, such as the first detection module 54 and the second detection module 56 in FIG. In this embodiment, the first detection module 54 and the second detection module 56 respectively include respective signal generators (540, 560) to generate a first detection pulse number S det+ and a second detection. Pulse signal s det-. The first detecting pulse signal Sdet+ can be input to the first capacitive node set through the selection module 52 for determining the touch detection state of the first capacitive node set. The second detection pulse signal Sdet- can be input to the second set of capacitance nodes adjacent to the first set of valley nodes through the selection module 52 for determining the touch detection state of the second collection of capacitance nodes. It should be specially noted that the first detection pulse signal + and the second detection pulse signal Sdet - are opposite to each other, that is, the first detection pulse signal Sdet + and the second detection pulse signal Sdet- mutually inhibits each other's electromagnetic interference and improves the stability of the system. On the other hand, the first detecting module 54 and the second detecting module 56 can simultaneously determine the touch of the two capacitive node sets according to the first detecting pulse signal Sdet+ and the second detecting pulse signal Sdet-, respectively. Controlling the detection state can theoretically increase the speed of touch detection by at least two times. See Figure 7 for sunny. FIG. 7 is a timing diagram showing the first detection pulse signal Sdet+ and the second detection 13 201102898 pulse signal Sdet- of the touch input device 5 in sequence for different capacitance node sets. For example, the detection corresponding to FIG. 7 may input the first detection pulse signal Sdet+ for the X-direction wire X3 of the first detection module 54, and the direction wires (Y1 YYn) are grounded or nulled to The corresponding capacitance node corresponding to χ3 is selected to form a first set of capacitance nodes, and whether the dragon is born (Χ3, Υ1~Yn)_L. The second integrated measuring module 56 * X-directional wire: input the second detecting pulse signal Sdet_, and ground or null all the Y directions (Y1 ~ γη) to select all the electrics corresponding to X4 = into the second capacitive node The Ν2, that is, detecting whether there is a touch/in summary, in the touch input device 5 of the present invention, the relationship between the capacitance of the capacitor and the capacitance of the second capacitor is combined with the red capacitor node of the group. Not limited to vertical or horizontal adjacencies. For example, in another example, each capacitor node group may be formed by horizontally adjacent, ring-shaped, square, diagonal, or other geometrically-arranged adjacent capacitor nodes, and the number of components is not limited to a single one. For two or two _ = a few capacitor nodes, all of them can be used to quickly determine the effect of the judgment. In the second specific implementation of the financial touch input (4) 5 other internal components of the operation and principle and the first - frequency real _ outline, no additional information here. Compared with the prior art 'Benfa County—the group's pulse step but the reverse pulse wave heart number is input to the adjacent capacitor node or the adjacent capacitor node group, the touchdown state=debt test judgement' side pulse wave letter reverses each other. The enthalpy reduces the electromagnetic pre-set of other components in the system and improves the stability of the wheel 4 . The features and spirits of the present invention are intended to be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed. 201102898 [Description of the drawings] FIG. 1A is a schematic diagram of a touch panel in the prior art. Figure 1 B I shows a schematic diagram of a touch input device of the prior art. FIG. 2 is a timing diagram showing the detection of pulse signals by different touch nodes in the prior art. FIG. 3 is a schematic diagram of a touch input device according to a first embodiment of the present invention. FIG. 4A is a schematic diagram showing an example of selecting a first set of capacitive nodes and a second set of capacitive nodes. FIG. 4B is a schematic diagram showing an example of selecting a first set of capacitive nodes and a second set of capacitive nodes. FIG. 4C is a schematic diagram showing an example of selecting a first capacitive node set and a second capacitive node set. FIG. 5 is a schematic diagram showing the timing of the detection of the pulse signal and the inversion pulse signal by the touch input device in the first embodiment. Figure 6 is a schematic diagram of a touch input device in accordance with a second embodiment of the present invention. FIG. 7 is a timing diagram showing the first detecting pulse wave signal and the second detecting pulse wave signal generated by the touch input device in the second embodiment according to the second embodiment of the 20 201102898 capacitor node set. [Main component symbol description] 1, 3, 5: touch input device 1〇, 30, 50: touch panel 12, 32, 52: touch sensing circuits 100a, 100b, 100c, 3〇〇a, 300b, 300c: Capacitor node
300、500 :電容節點 t0、tl :時間點 12 :多工選擇器 14、34 :偵測模組 54 :第一偵測模組 56 :第二偵測模組 320、520 :選擇模組 340、540、560 :訊號產生器 322、522 :第一多工選擇器300, 500: Capacitor node t0, tl: time point 12: multiplexer 14, 34: detection module 54: first detection module 56: second detection module 320, 520: selection module 340 , 540, 560: signal generators 322, 522: first multiplex selector
324、524 :第二多工選擇器 120、320、520 :控制電路 X卜X2、X3、X4、Xm : X方向導線324, 524: second multiplex selector 120, 320, 520: control circuit X Bu X2, X3, X4, Xm: X direction wire
Yl、Y2、Y3、Y4、Yn : Y 方向導線Yl, Y2, Y3, Y4, Yn: Y direction wire
Sdet :偵測脈波訊號Sdet: Detect pulse signal
Sinv :反相脈波訊號Sinv: reverse pulse signal
Sdet+ :第一偵測脈波訊號 Sdet-:第二偵測脈波訊號 17Sdet+: first detection pulse signal Sdet-: second detection pulse signal 17