201131452 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明是有關於一種觸控面板，且特別是有關於一種表 面電容式觸控面板及其驅動方法。 ' 【先前技術】 [0002] 為了達到更便利、體積更輕巧化以及更人性化的目的， 許多資訊產品的輸入方式已由傳統之鍵盤或滑鼠等裝置 ，轉變為使用觸控式裝置作為輸入的方式。觸控式裝置 可組裝在諸多種類的平面顯示器上，以使平面顯示器兼 〇 具顯示畫面以及輸入操作資訊的功能。 [0003] 就目前常見的觸控式裝置而言，電容式觸控面板以及電 阻式觸控面板最為普及。尤其是，使用者僅需輕觸電容 式觸控面板表面即可進行觸控操作而使電容式觸控面板 更為使用者所熱愛。 [0004]201131452 VI. Description of the Invention: [Technical Field] The present invention relates to a touch panel, and more particularly to a surface capacitive touch panel and a driving method thereof. [Prior Art] [0002] In order to achieve more convenience, lighter weight and more humane purposes, many information products have been converted from traditional keyboards or mice to touch devices. The way. The touch device can be assembled on a wide variety of flat-panel displays to enable the flat-panel display to display images and input operational information. [0003] In terms of current touch devices, capacitive touch panels and resistive touch panels are the most popular. In particular, the user only needs to touch the surface of the capacitive touch panel to perform touch operation, so that the capacitive touch panel is more popular among users. [0004]
在電容式觸控面板中，表面丨電餐_觸靼面板僅需單層銦 錫氧化物薄膜就具有觸控功能，沸具东結構簡單及製作 成本低廉的優點。然而，表面電容式觸控面板的定位精 準度不佳而大幅地限制了這種類型觸控面板的應用。換 言之，為了兼具結構簡單、成本低廉、定位精準度高以 及應用層面廣，觸控式裝置仍有待為改善的空間。 【發明内容】 [0005] 本發明提供一種表面電容式觸控面板，具有高定位精準 度。 [0006] 本發明提供一種觸控方法，應用於定位精準度高的表面 099106825 表單編號A0101 第3頁/共34頁 0992012335-0 201131452 電容式觸控面板。 [0007] 本發明提供一種顯示裝置，兼具一種高精準度的表面電 容式觸控面板。 [0008] 本發明提供一種電子裝置，具有觸控操作功能，且具有 理想的觸控精確度。 [0009] 本發明提出一種表面電容式觸控面板，包括一導電薄膜 以及多個驅動感測電極。導電薄膜具有阻抗異向性 (anisotropy of impedance)，以定義出一較低阻抗 方向。多個驅動感測電極配置於導電薄膜的至少一側邊 ，且側邊實質上垂直於較低阻抗方向。 [0010] 在本發明之一實施例中，上述之各驅動感測電極垂直較 低阻抗方向的一長度由1 mm至5 mm。 [0011] 在本發明之一實施例中，上述之驅動感測電極的間距由3 mm至5 mm 〇 [0012] 在本發明之一實施例中，上述之導電薄膜包括一奈米碳 管薄膜。 [0013] 在本發明之一實施例中，上述之驅動感測電極包括多個 第一驅動感測電極與多個第二驅動感測電極，且第一驅 動感測電極與第二驅動感測電極分別位於導電薄膜的相 對兩側邊。舉例而言，各第一驅動感測電極與任一個第 二驅動感測電極的一筆直連線實質上與較低阻抗方向相 交錯。或是，各第一驅動感測電極與最接近的其中一個 第二驅動感測電極的一筆直連線實質上平行較低阻抗方 0992012335-0 099106825 表單編號A0101 第4頁/共34頁 201131452 [0014] Ο [0015] [0016]In the capacitive touch panel, the surface of the 丨-touch panel requires only a single layer of indium tin oxide film to have a touch function, and the boiling device has the advantages of simple structure and low manufacturing cost. However, the poor positioning accuracy of the surface capacitive touch panel greatly limits the application of this type of touch panel. In other words, in order to have a simple structure, low cost, high positioning accuracy, and wide application range, the touch device still needs room for improvement. SUMMARY OF THE INVENTION [0005] The present invention provides a surface capacitive touch panel with high positioning accuracy. [0006] The present invention provides a touch method for a surface with high positioning accuracy. 099106825 Form No. A0101 Page 3 of 34 0992012335-0 201131452 Capacitive touch panel. The present invention provides a display device that combines a high-precision surface capacitive touch panel. The present invention provides an electronic device having a touch operation function and having an ideal touch accuracy. The present invention provides a surface capacitive touch panel comprising a conductive film and a plurality of driving sensing electrodes. The conductive film has an anisotropy of impedance to define a lower impedance direction. The plurality of driving sensing electrodes are disposed on at least one side of the conductive film, and the sides are substantially perpendicular to the lower impedance direction. In one embodiment of the invention, each of the drive sensing electrodes has a length from 1 mm to 5 mm perpendicular to the lower impedance direction. [0011] In an embodiment of the invention, the distance between the driving sensing electrodes is from 3 mm to 5 mm. [0012] In an embodiment of the invention, the conductive film comprises a carbon nanotube film. . [0013] In an embodiment of the invention, the driving sensing electrode includes a plurality of first driving sensing electrodes and a plurality of second driving sensing electrodes, and the first driving sensing electrodes and the second driving sensing The electrodes are respectively located on opposite sides of the conductive film. For example, a straight line of each of the first drive sensing electrodes and either of the second drive sense electrodes is substantially interleaved with a lower impedance direction. Alternatively, each of the first driving sensing electrodes is substantially parallel to a straight line of the closest one of the second driving sensing electrodes. The lower impedance is 0992012335-0 099106825 Form No. A0101 Page 4 of 34 201131452 [ 0014] Ο [0016] [0016]
[0017] [0018] 099106825 向。此時，各第一驅動感測電極與最接近的其尹—個第 二驅動感測電極係同時被掃描。 在本發明之_實_巾，上述之表面電容式觸控面板更 包括—驅動電路，驅動電路連接至各駆動感測電極以 逐步地掃描至少部份驅動感測電極。詳言之，驅動電路 包括-接地單元以及—掃描單元，且驅動制電極被掃 描時連接轉描單元，_動_電極未被掃描時連接 至接地單元。在_實施方式中，掃描_包括一充電電 路、-儲存電路以及—讀取祕，射充電電路與儲存 電路並聯，而讀取電路連接至儲存電路。 树明另提出-種驅動方法，用於驅動如上所述的表面 電容式觸控面板。逐步地掃描驅動感測電極。並且，由 被掃描的驅動感測電極接收訊號。 在本發明之—實施例巾，上述之㈣方法更包括比較相 鄰三個驅動_t_喊韻—觸_㈣直較低阻 抗方向上的位置。 在本發明之-實_巾，上述之驅㈣法更包括由驅動 感測電極的訊號判斷_觸碰點在平行較低阻抗方向 位置。 本發明再提出一種顯示裝置’其包括如上所述的表面電 容式觸控面板以及—顯示面板，其巾顯示面板設置於基 板的一侧。 本發明更提出-種電子裝置，其包括如上所述的顯示裝 置以及—輸人單元。輸入單讀顯示裝置Μ合，並對顯 表單編號 Α0101 ^ ^ ^ ηΛ ^ ·’ 0992012335-0 [0019] 201131452 示裝置提供輸入，以使顯示裝置顯示影像。 [0020] 在本發明之一實施例中，上述之電子裝置為移動式電話 、數位照相機、個人數位助理、筆記型電腦、桌上型電 腦、電視機、車用顯示器 '或可攜式DVD機。 [0021] 基於上述，本發明利用具有阻抗異向性的一薄膜作為表 面電容式觸控面板的導電薄膜。此外，驅動感測電極的 排列係垂直於導電薄膜的較低阻抗方向。所以，表面電 容式觸控面板可以正確地辨識出觸碰點在垂直或是平行 較低阻抗方向上的座標。亦即，本發明的表面電容式觸 控面板具有高定位精準度。此外，本發明的表面電容式 觸控面板可以利用簡易的驅動方法即達成高觸控定位精 準度。 [0022] 為讓本發明之上述特徵和優點能更明顯易懂，下文特舉 實施例，並配合所附圖式作詳細說明如下。 【實施方式】 [0023] 圖1繪示為本發明之一實施例的表面電容式觸控面板的示 意圖。請參照圖1，表面電容式觸控面板100包括一導電 薄膜11 0以及多個驅動感測電極1 2 0。導電薄膜11 0具有 阻抗異向性，亦即，導電薄膜110在兩個不同方向上具有 不同的阻抗性，以定義出一較低阻抗方向D，以及一較高 阻抗方向Η，其中較低阻抗方向D和較高阻抗方向Η可為垂 直。 [0024] 換言之，導電薄膜110在較低阻抗方向D具有相對較佳的 導電性，而在垂直較低阻抗方向D的一較高阻抗方向Η具 099106825 表單編號Α0101 第6頁/共34頁 0992012335-0 201131452 有相對較差的導電性。另外，本實施例的導電薄膜1 1 〇 ( 例如為矩形的薄膜）具有四側邊，依序為側邊1 1 2、側邊 114、側邊116以及側邊118。側邊112與側邊η 6相對且 平行於較高阻抗方向Η，而側邊114及側邊118相對並平行 於較低阻抗方向D。 [0025] Ο G [0026] 具體而言，圖2為圖1之表面電容式觸控面板沿剖線4_八， 繪示的局部剖面示意圖。請參照圖2，在剖面圖中，表面 電谷式觸控面板1〇〇包括一基板1〇2以及配置於基板1〇2 上的導電薄膜110。導電薄膜11〇包括一奈米碳管薄膜， 也就是其材質主要為奈米碳管。導電薄膜11〇的製作方式 例如是採用化學氣相沉積法（chemicai vap〇r dep〇s_ ition，CVD)或其他適當的方法於矽基板、石英基板或 其他適當的基板上形成奈米碳管層。接著，沿著一拉伸 方向從奈米碳管層的一側邊拉出奈米碳管薄膜，也就是 導電薄膜110。之後，將導電薄膦110配置於基板1〇2上 即初步地完成表面電容式觸^高乂丨〇〇。g伸的步驟時， 奈米碳管層中的奈米碳管將沿本缚拉伸方向排列，所以 導電薄膜110可具有阻抗異向性。 此外，請繼續參照圖1，本實施例中，多個驅動感測電極 120配置於導電薄膜11〇的侧邊112。各驅動感測電極120 延著較高阻抗方向Η上的一長度W1可為1 mm至5 mm之間 ，而相鄰驅動感測電極120的間距W2可為3 mm至5 mm之 間。如此一來，各驅動感測電極120輸入至導電薄膜11() 或接收自導電薄膜110的一訊號將主要地沿著較低阻抗方 向D傳輸。表面電容式觸控面板1〇〇便可利用訊號傳輸具 099106825 表單編號A0101 第7頁/共34頁 0992012335-0 201131452 有方向性之特性作為觸碰位置的判斷依據。當然，在實 際的產品中，各驅動感測電極120的尺寸及間距可以視產 品所需解析度及產品的應用領域而有所不同。也就是說 ，以上所描述的數值僅為舉例說明之用並非用以限定本 發明。 [0027] 詳言之，表面電容式觸控面板100更包括一驅動電路130 ，且驅動電路130連接至至少部份或是全部的驅動感測電 極120。值得一提的是，驅動電路130實際上可由各種不 同的元件設計及連接關係來達戍，以下將舉例說明一種 電路設計的實施態樣。不過，以下的說明並非用以限定 本發明。另外，在本實施例中，所謂的一元件僅表示有 一種具有某功能或是性質的元件配置於表面電容式觸控 面板100中，而非表示此元件的數量。也就是說，上述的 一驅動電路130可以僅由單一個驅動電路130所構成，而 單--個驅動電路130可以透過適當的處理模式或是多工 器等設計逐一地連接至各個驅動感測電極120。不過，驅 動電路130的數量也可以是多個，而各個驅動電路130可 以一對一地連接一個驅動感測電極12 0，或是一對多地連 接多個驅動感測電極1 2 0。另外，本實施例為了使圖面清 晰僅繪示了驅動電路130連接至一個驅動感測電極120的 態樣，但實際上由上述說明可知，至少有數個或是全部 的驅動感測電極120都可以連接至驅動電路130。[0018] 099106825 to. At this time, each of the first driving sensing electrodes is simultaneously scanned with the closest one of the second driving sensing electrode systems. In the present invention, the surface capacitive touch panel further includes a driving circuit connected to each of the tilt sensing electrodes to gradually scan at least a portion of the driving sensing electrodes. In detail, the driving circuit includes a grounding unit and a scanning unit, and the driving electrode is connected to the scanning unit when being scanned, and is connected to the grounding unit when the moving electrode is not scanned. In the embodiment, the scan_ includes a charging circuit, a storage circuit, and a reading secret, the charging circuit is connected in parallel with the storage circuit, and the reading circuit is connected to the storage circuit. Shuming also proposes a driving method for driving the surface capacitive touch panel as described above. The drive sensing electrodes are scanned step by step. And, the signal is received by the scanned drive sensing electrode. In the embodiment of the present invention, the above method (4) further includes comparing the positions of the adjacent three driving _t_ shouting-touch _(four) in the lower impedance direction. In the present invention, the above method (4) further includes judging by the signal driving the sensing electrode that the touch point is in a parallel lower impedance direction position. The present invention further provides a display device' comprising a surface capacitive touch panel as described above and a display panel having a towel display panel disposed on one side of the substrate. The invention further proposes an electronic device comprising the display device as described above and an input unit. The input single-reading display device is combined and an input is provided to the display device number Α0101 ^ ^ ^ ηΛ ^ ·' 0992012335-0 [0019] 201131452 to cause the display device to display an image. [0020] In an embodiment of the invention, the electronic device is a mobile phone, a digital camera, a personal digital assistant, a notebook computer, a desktop computer, a television, a car display, or a portable DVD player. . [0021] Based on the above, the present invention utilizes a film having impedance anisotropy as a conductive film of a surface capacitive touch panel. Further, the arrangement of the driving sensing electrodes is perpendicular to the lower impedance direction of the electroconductive thin film. Therefore, the surface capacitive touch panel can correctly recognize the coordinates of the touch point in the vertical or parallel lower impedance direction. That is, the surface capacitive touch panel of the present invention has high positioning accuracy. In addition, the surface capacitive touch panel of the present invention can achieve high touch positioning accuracy by using a simple driving method. [0022] The above described features and advantages of the present invention will be more apparent from the following description. Embodiments [0023] FIG. 1 is a schematic diagram of a surface capacitive touch panel according to an embodiment of the present invention. Referring to FIG. 1, the surface capacitive touch panel 100 includes a conductive film 110 and a plurality of driving sensing electrodes 120. The conductive film 110 has impedance anisotropy, that is, the conductive film 110 has different resistances in two different directions to define a lower impedance direction D, and a higher impedance direction Η, wherein the lower impedance Direction D and the higher impedance direction Η can be vertical. [0024] In other words, the conductive film 110 has a relatively better conductivity in the lower impedance direction D, and a higher impedance direction in the vertical lower impedance direction D. 099106825 Form No. 1010101 Page 6 / Total 34 Pages 0992012335 -0 201131452 Relatively poor conductivity. Further, the electroconductive thin film 1 1 〇 (for example, a rectangular thin film) of the present embodiment has four side edges, which are the side edges 1 1 2, the side edges 114, the side edges 116, and the side edges 118. The side 112 is opposite the side η 6 and parallel to the higher impedance direction Η, while the side 114 and the side 118 are opposite and parallel to the lower impedance direction D. [0025] Specifically, FIG. 2 is a partial cross-sectional view of the surface capacitive touch panel of FIG. 1 taken along line 4-8. Referring to FIG. 2, in the cross-sectional view, the surface electric touch panel 1A includes a substrate 1〇2 and a conductive film 110 disposed on the substrate 1〇2. The conductive film 11A includes a carbon nanotube film, that is, the material thereof is mainly a carbon nanotube. The conductive film 11 is formed by, for example, chemical vapor deposition (CVD) or other suitable method to form a carbon nanotube layer on a germanium substrate, a quartz substrate or other suitable substrate. . Next, the carbon nanotube film, that is, the conductive film 110, is pulled out from one side of the carbon nanotube layer in a stretching direction. Thereafter, the conductive thin phosphine 110 is disposed on the substrate 1〇2, that is, the surface capacitive touch is initially completed. In the step of stretching, the carbon nanotubes in the carbon nanotube layer will be aligned in the direction in which the bonding is stretched, so that the conductive film 110 may have impedance anisotropy. In addition, referring to FIG. 1 , in the embodiment, a plurality of driving sensing electrodes 120 are disposed on the side 112 of the conductive film 11 . A length W1 of each of the driving sensing electrodes 120 extending in the higher impedance direction may be between 1 mm and 5 mm, and the spacing W2 of the adjacent driving sensing electrodes 120 may be between 3 mm and 5 mm. As a result, a signal input from each of the driving sensing electrodes 120 to the conductive film 11() or received from the conductive film 110 will be mainly transmitted along the lower impedance direction D. The surface capacitive touch panel can be used for signal transmission. 099106825 Form No. A0101 Page 7 of 34 0992012335-0 201131452 The directional characteristic is used as the basis for judging the touch position. Of course, in an actual product, the size and spacing of each of the driving sensing electrodes 120 may vary depending on the resolution required of the product and the field of application of the product. That is, the numerical values described above are for illustrative purposes only and are not intended to limit the invention. [0027] In detail, the surface capacitive touch panel 100 further includes a driving circuit 130, and the driving circuit 130 is connected to at least a part or all of the driving sensing electrodes 120. It is worth mentioning that the driving circuit 130 can be realized by various different component designs and connection relationships. An embodiment of a circuit design will be exemplified below. However, the following description is not intended to limit the invention. In addition, in the present embodiment, the so-called one element only indicates that one element having a certain function or property is disposed in the surface capacitive touch panel 100, instead of indicating the number of the elements. In other words, the driving circuit 130 can be composed of only one driving circuit 130, and the single driving circuit 130 can be connected to each driving sensing one by one through a suitable processing mode or a multiplexer design. Electrode 120. However, the number of the driving circuits 130 may be plural, and each of the driving circuits 130 may connect one driving sensing electrode 120 one-to-one or a plurality of driving sensing electrodes 120 from one to many. In addition, in the embodiment, only the driving circuit 130 is connected to one driving sensing electrode 120 in order to make the drawing clear, but actually, as described above, at least some or all of the driving sensing electrodes 120 are It can be connected to the drive circuit 130.
[0028] 在本實施例中，驅動電路130包括一接地單元132以及一 掃描單元134，其中掃描單元134包括一充電電路C、一儲 存電路P以及一讀取電路R，其中充電電路C與儲存電路P 099106825 表單編號A0101 第8頁/共34頁 0992012335-0 201131452 並聯 而讀取電《連接至儲存電路Ρ。 [0029] Ο [0030] 開關：：設置有四個切換開關，其分別為 以控制掃描mrsw3J^_SW4。開隨1用 電路_狀、儲存糖以及讀取 導通至驅動感測電極120。並且， ，:V:_2用以控制充電電路c是否連接至開_ 至開關sw?"3則用以控制儲存電路P與讀取電路尺是否連接 #制驅另外’開關_設置於接地單元132中用以 工財動感測電極120是否接地。 Ο 實把例中，電容式觸控面板刚的軸方式例如是逐 '也驅動感測電極丨2 D以接收被掃描的獎動感測電極 〇的訊號。在此，所謂的逐步地掃描是指驅動感測電極 120會批次地或是-個接-個地與掃描單元134導通。當 其+—個_感測電極12Q與掃描單元134導通時，其他 的驅動感測電極12〇都會與接地單元132導通。另外，本 土月的掃描順序不一定依照驅動感測電極12〇在空間中的 排列位置舉例來說，圖W緣示的驅動感測電極可 以由左而右、由右而左、間隔—個、間隔多個或是依照 無特疋規則的順序被掃描。 [0031] 詳吕之，表面電容式觸控面板1〇〇的驅動感測電極12〇例 如依序排列為電極XI、電極X2、電極χ3、電極χ4、電極 Χ5、電極Χ6、電極Χ7以及電極“。在本實施例的設計下 ，要使電極Χ3與掃描單元134導通，則掃描單元134中的 開關SW1需導通且接地單元132中的開關SW4需斷開。另 外，要使電極X3與接地單元ι32導通時，則接地單元132 099106825 表單編號A0101 第9頁/共34頁 0992012335-0 201131452 中的開關S W 4會導通且掃描單元1 3 4中的開關S W1會斷開 。在此，接地單元132例如是連接玄一接地電位或是一固 定的電位或是一個高阻抗之元件。 [0032] 舉例來說，圖3繪示為本發明之一實施例的驅動電路中各 切換開關在進行掃描時的驅動波形杀意圖。請參照圖3， 圖3所繪示的波形中由上而下依序為開關SW1、開關SW2、 開關SW3以及開關SW4的驅動波形。時間T1為掃描動作執 行的時間。此外，在本實施例中，各驅動波形中高準位 的時間表示對應的開關SW1~SW4被導通（也就是開啟， turn on)，而低準位的時間則表示對應的開關SW卜SW4 被斷開（也就是關閉，t u r η f f.)。 [0033] 請同時參照圖1與圖3，時間T1中，開關SW1被導通，而開 關SW4被斷開。所以，對應的驅動感測電極120會與掃描 單元134導通以進行掃描與感測。此外’時間T1中，開關 SW2與開關SW3將會交替地一者镇導通’而另一者被斷開 。在本實施例中，開關SW2'與賊闕S.f.3.被導通的時間分別 為T2及T3，且開關SW2被斷開滅’開關SW3會延遲—段時 間tl才被導通。如此一來’在時間T1中’對應的驅動残 測電極120將交替地連接至充電電路C以及儲存電路p。在 一實施例中，時間T1例如為20微秒（#s)，時間^與日夸 間T3例如為0. 3微秒，而時間tl則例如為0. 〇25微秒。不 過，隨不同的驅動方式，時間T3也可以緊接著時間T2， 亦即時間tl可以為零。簡言之，這些時間的長短當視驅 動電路130的能力及實際產品尺寸等因素而決定。 [0034] 以本實施例而言’充電電路C例如連接一電磨源（未皆干） 099106825 表單編號A0101 第10頁/共34頁 0992〇12335-〇 201131452 諸存電路ρ則例如連接—外部電容c〇ut。表面電容式 —工板10〇被使用者以手指或是導電介質觸碰時，導電 ，、10與手指（或是導電介質）之間會產生一接觸電容。 此時，充電電路c與儲存電路Ρ將交替地對接觸電容進行 充放電。讀取電路R便可以讀取時巾接觸電容的充電 I例如電壓值，以作為觸碰位置的判斷依據。在本實 施例中，上述的設計僅是驅動電路130的一種實踐方式。 在其他的實施例中，驅動電路130可以由其他功能單元所 Ο [0035] 組成。也就是說，凡是可以連接至驅動感測電極12〇以判 別出接觸電容的電路設計都可识成為每動電路13〇的佈局 設計。 Ο 请繼續參照圖1，在一模擬試驗中，每一次的觸碰動作所 造成接觸面積例如預設為5 mmx5 mm，且儲存電路ρ令所 設置的外部電容Cout例如為1〇〇 Pf。此外，在此模擬試 驗中將進行九個觸碰位置的模擬，且這些觸碰位置的中 心點例如為位置卜位置IX，其中位置卜位置111對準電 極X4 ’位置IV〜位置VI分別由位置卜位置ΠΙ朝向電極X5 偏移，而位置VII~位置IX分別由位置IV〜位置VI朝向電 極X5偏移。而在咚實驗中，位置VII〜位置lx與電極μ之 間的距離被設定為等於位置VI卜位置IX與電極χ5之間的 距離。 [0036] 圖4至圖6繪示為模擬試驗下，電極X3至第X6所接收到的 訊號。請先同時參照圖1與圖4，本實施例的導電薄膜11〇 具有阻抗異向性，所以電流的路徑傳輸將主要地平行於 較低阻抗方向D。位置I被觸碰時，電極X3-X6所接收到的 099106825 表單編號A0101 第11頁/共34頁 0992012335-0 201131452 [0037] [0038] [0039] 099106825 訊號（也就是讀取電路R所讀取的電壓）實質上如圖4中折 ’ 所示位置Π與位置ill被觸碰時，電極所 接收到的Λ號則分別如圖4中折線320與折、線330所示。 位置1〜位置111雖同樣地對準電極Χ4，卻可以產生不同的 況號其中位置111被觸碰時’電極Χ4所接收到的訊號最 J在此杈擬中，當觸碰位置I〜IX與驅動感測電極12〇的 距離越近’對應的驅域測電極120職收㈣訊號越大 所、表面電谷式觸控面板100可以自驅動感測電極 120所接收之訊號的數值大小來判斷觸碰位置在較低阻抗 方向D上的座標。 接著，請參照圖5，折線340〜折線360依序為觸碰位置位 於位置IVM立置VI時電極Χ3至電極χ6所接收的訊號。由 於位置IV〜位置VI分別地相對於位置卜位置〗丨〗朝向電極 Χ5偏移，電極Χ4與電極Χ5都可以對接觸電容進行充放電 的動作。不過，碰觸點在位置^〜位辱VI時電極χ4所接收 到的訊號會高於電極Χ5所接收到的訊雖。 相似地，請參照圖6，折線370〜拆線39〇依序為觸碰位置 位於位置立置IX時電極Χ3至電極χ6所接收的訊號。 在此，觸碰位置位於位置VII〜位置Ιχ其中—者時，電極 乂4與电極乂5實質上可以接收到相同的訊號。由圖4至圖6 的訊號關係可知’若要判斷觸碰位置在較高阻抗方向_ 座標，可以比較相鄰三個驅動感測電極12〇所接收到的訊 號。舉例而言，要判斷觸碰位置在較高阻抗方向Η的座標 ，可取出相鄰三個驅動感測電極12G所接收到的訊號中， 較高兩者的訊號值，並將此兩者的訊號值以内插或是以 表單編號A0101 第12頁/共34頁 0992012335-0 201131452 比例關係加成來獲得對應的座標值。此處所述的比例 關係可基於模擬過程中所接收到的訊號值之變化而決定 [0040] 具體而言，表面電容式觸控面板1〇〇製作完成之後，可依 據所需的解析度在各個位置進行模擬試驗以求得各驅動 感洌電極120所接收到的訊號對應於不 同觸碰位置的變化 關係。將此關係建立於驅動感測晶片中即可作為日後使 Ο [0041] 用者實際操作表面電容式觸控面板100時，判斷觸碰位置 的依據。 G [0042] 本實施例的導電薄膜〗丨0具有阻抗異向性，使各驅動感測 電極120所接收到的訊號能直接地反應出觸碰位置的遠近 。因此，表面電容式觸控面板10〇具有較佳啲感測精確性 。另外，表面電容式觸控面板10〇可藉由直接讀取電極接 收訊號的數值以及比較相鄰電極所接收訊號的數值來定 出觸碰位置，不需複雜的驅動方法與演算程式。整體來 說，本實施例提出的表面電容式觸撩笋板10〇兼具有結構 簡單、感測精確性高且驅動方法簡易的特點。 圖7繪示為本發明之另一實施例的表面電容式觸控面板的 示意圖。請參照圖7，表面電容式觸控面板400包括有導 電薄膜110、多個驅動感測電極420以及驅動電路13〇。 在本實施例中’導電薄膜110與前述實施例的導電薄膜相 同，而驅動電路130的設計也例如與前述實施例相同，所 以這些相同的元件將以相同的元件符號標示。本實施例 的驅動感測電極420包括多個第一驅動感測電極422以及 099106825 多個第二驅動感測電極424。 表單編號A0101 第13頁/共34頁 °992012335-0 201131452 [0043] 具體而言，第一驅動感測電極422以及第二驅動感測電極 424分別位於導電薄膜no相對的兩側邊，也就是側邊 112與側邊116。第一驅動感測電極422以及第二驅動感 測電極4 2 4的尺寸及間距設計可以參照前述實施例的說明 ，不過也可以依照產品及應用的需求而進行調整。各第 一驅動感測電極422與任一個第二驅動感測電極424的筆 直連線L係與較低阻抗方向d相交而不平行。亦即，第一 驅動感測電極4 2 2以及第二驅動感測電極4 2 4的配置位置 彼此交錯。 [0044] 表面電容式觸控面板400的驅動方法例如是逐一地使第一 驅動感測電極422以及第二驅動感測電極424進行掃描與 感測。第一驅動感測電極422依序進行掃描與感測時，第 二驅動感測電極424皆被導通至接地單元132 ^同樣地， 第二驅動感測電極424依序進行掃描與感測時，第一驅動 感測電極422皆被導通至接地單元132。因此，側邊^ 2 上的驅動感測電極420，也就是第一聽動感測電極422， 進行掃描與感測時’導電薄獏11〇的另一側邊116上的第 二驅動感測電極424會連接至接地電位或一固定的電位或 —兩阻抗元件。側邊116上的驅動感測電極42〇，也就是 第二驅動感測電極424，進行掃描與感測時，導電薄膜 U0的另一側邊112會連接至接地電位或一固定的低電位 〇 [〇〇45]另外，表面電容式觸控面板400的驅動方法也可以是交替 地使第一驅動感測電極422以及第二驅動感測電極424進 行掃描與感測。也就是說，其中一個第一驅動感測電極 099106825 表單塢號Α0101 第14頁/共34頁 0992012335-0 201131452 422被掃描後，接 考和描其中一個第二驅動感測電極424 ’再接著掃描另一個 lu弟一驅動感測電極422，而後掃描另 ^固第二驅動感測電極424 ..。也就是說，兩側邊ιΐ2 上的電⑯可以不按照特㈣順序被掃描，以判斷出 觸碰位置的座標。 [0046] Ο 再進乂來說’表面電容式觸控面板400的驅動方法也可 以僅使側邊112上的驅動感測電極42q，也就是第一驅動 感電極422 ’進行掃描與感測。此時，所有第二驅動感 測電極424則固地連接至接地電位或—固㈣電位或一 问阻抗元件。或是，僅使侧邊u 6上的驅動感測電極42〇 ，也就疋第二驅動感測電極424，進行掃描與感測，而將 所有第一驅動感測電極422固定地連接至接地電位或一固 定的電位或一高阻抗元件。 [0047] ο 表面電容式觸控面板4〇〇的設計有助於放大各驅動感測電 極420所接收到的訊號變異度。舉例而言，圖8繪示為模 擬試驗中’表面電容式觸控面板400的電極X3〜電極X6所 接收到的訊號。将別是，圖8中所繪示的折線510〜530表 示圖7的表面電容式觸控面板4〇〇在位置卜位置1!丨分別 被觸碰時所接收到的訊號。除了驅動感測電極42〇的配置 方式外’在此所描述的模擬試驗與前述實施例所描述的 模擬試驗採用相同的參數，而不另贅述。換言之，圖8與 圖4分別表示驅動感測電極配置方式不同時的模擬結果。 另外，本實施例的模擬試驗可以採用上述多種方式來進 行掃描與驅動’也就是說，驅動感測電極420的掃描;嗔序 不須限定’且驅動感測電極420中可以僅有部分的電極進 099106825 表單編號A0101 第15頁/共34頁 〇992〇12335~〇 201131452 行掃描與感測。 [0048] 啁碰所產生的訊號中 ，訊號高值差△ 大高值Vh的比值越大時表示訊號的變異度越 ..^說Λ號的變異度增大則訊號範圍可以切割 ，表面°也就是說’即使觸碰位置的偏移量縮小 觸控面板MG仍可以有效地辨識出來，而有 的ϋ会火位解析度。因此，由圖4與圖8可知，在同樣 择吴〆數下，圖8的模擬結果可以提供較大的訊號變異 二一有更阿的疋位解析度。換言之，在同樣的面板尺 、 表面電谷式觸控面板400相較於表面電容式觸 控面板⑽可以辨析出較多的觸碰點。亦即，電容式觸控 面板4〇G僅藉由改變驅動感測電極的配置位置就可以 進一步地提高定位解析度。 [0049] 另外’圖叫示為本發明之又—實施例的表面電容式觸控 面板。請參照圖9，表面電容式觸控面板6〇〇與表面電容 式觸控面板400大致相同，其中，相同的元件將以相同的 兀件符號標示。表面電容式觸控面本6〇〇與表面電容式觸 控面板400兩者之不同處在於：驅動感測電極62〇的排列 位置係兩兩對齊。也就是說’驅動感測電極62〇包括配置 於側邊11 2上的多個第一驅動感測電極622以及配置於側 邊116上的多個第二驅動感測電極624。此外，每—個第 一驅動感測電極622與其中一個第二驅動感測電極624的 筆直連線L恰平行於較低阻抗方向D。更具體來說，每— 個第一驅動感測電極622與最接近的其中一個第二驅動感 測電極624的筆直連線L恰平行於較低阻抗方向d。 099106825 表單編號A0101 第16頁/共34頁 0992012335-0 201131452 [0050] ❹ [0051] 值知提的是’表面電容式觸控面板6〇〇的驅動方法例如 疋使彼此對齊的一第—驅動感測電極622與對應的第二驅 動感測電極624同時進行掃描與感測。也就是說’當驅動 感測電極620排列為電極X1〜電極χΐ2時，電極χι與電極 X7可以同時連接至掃描單元134以進行掃描與感測，其餘 的驅動感測電極620則連接至接地單元132。同樣地，電 極X2與電極χ8朗、電極χ3與電極服對、電極χ4與電 極Χίο成對、電極Χ5與電極X11成對以及電極χ6與電極 XI2成對，&些成對的電極可以同時進行掃描與感測。不 過在其他的實施方式中，位於同一側的電極X卜電極X6 兩個或兩個以上的電極可以同時地進行掃描與感測。 當成對的驅動感測電極62G進行掃描與感測，則觸碰動作 所產生之接觸電容在較低阻抗方向D上的位置可以同時由 =的兩個驅動感測電極62G所接㈣訊號來進行判斷。 藉著這樣的驅動方式，觸碰位置的定位精率度，特別是 在較低阻抗方向D上’將可更進—步提升。在本實施例中 G [0052] 成對的兩個電極（例如電極χ丨與電極X?)可關步或是 不同步地進行掃描。 以上實施射所描述的表面電容式觸控面板可以 應用於 許多的光電元件或是電子裝置中。舉例而言，請參照圖 上述的表面電谷式觸控面板1〇〇可以與-顯示面板 710結合而構成-種顯示裝置72()。也就是說，表面電容 式觸控面板100可以成為觸控顯示I置的一個構件以 提供觸控的功I ’其t顯示面板71G可設置於基板⑽的 任-側。亦即，表面電容式觸控面板剛之導電薄膜110 099106825 表單編號A0101 第17頁/共34頁 0992012335-0 201131452 可設置於基板102與顯示面板710之間。當然，顯示面板 710亦可設置於表面電容式觸控面板100的基板102遠離 導電薄膜110的一側（圖中未顯示）。舉例而言，表面電容 式觸控面板100之導電薄膜110可如圖10般，設置於基板 102下方，使顯示面板710設置於基板102較靠近導電薄 膜110的一側。亦可如圖2般設置於基板102上方，使顯示 面板710設置於基板102較達離導電薄膜110的一侧（圖2 中未特別表示出顯示面板710)。 [0053] 此外，結合有上述的表面電容式觸控面板110以及顯示面 板710的顯示裝置720可以搭配一輸入單元730而構成一 種電子裝置700。在這樣的電子裝置700中，輸入單元 730與顯示裝置720耦合，並對顯示裝置720提供輸入， 以使顯示裝置720顯示影像。輸入單元例如可為一電源啟 動鈕或快捷鍵…等可以改變電子裝置700當前狀態的元件 。此外，這樣的電子裝置700可以為移動式電話、數位照 相機、個人數位助理、筆記型電腦、桌上型電腦、電視 機、車用顯示器、或可攜式DVD機。 [0054] 综上所述，本發明採用具有阻抗異向性的材質製作觸控 面板的導電薄膜。觸控面板的電流傳遞具有一定的方向 性而可做為觸碰位置的判斷依據。因此，本發明採用單 層導電薄膜就可以完成二維的位置定位計算。另外，基 於導電薄膜的特性，觸控面板的定位精準度更勝於傳統 的表面電容式觸控面板。再進一步而言，本發明還可以 藉由改變電極的配置位置來依照不同的需求提高觸控面 板的解析度或是定位精準度。 099106825 表單編號A0101 第18頁/共34頁 0992012335-0 201131452 [0055] 雖然本發明已以實施例揭露如上，然其並非用以限定本 發明，任何所屬技術領域中具有通常知識者，在不脫離 本發明之精神和範圍内，當可作些許之更動與潤飾，故 本發明之保護範圍當視後附之申請專利範圍所界定者為 準〇 【圖式簡單說明】 圖1繪示為本發明之一實施例的表面電容式觸控面板的示 意圖。 圖2為圖1之表面電容式觸控面板沿剖線A-A’繪示的局部 剖面示意圖。 圖3繪示為本發明之一實施例的驅動電路中切換開關在 進行掃描時的驅動波形示意圖。 圖4至圖6繪示為模擬試驗下，電極X3至X6所接收到的訊 號。 .. , ',：, 圖7繪示為本發明之另一實施例的奉®電容式觸控面板的 示意圖。 圖8繪示為模擬試驗中，表面電容式觸控面板400的電極 X3〜電極X6所接收到的訊號。 圖9繪示為本發明之又一實施例的表面電容式觸控面板。 圖10繪示為本發明之一實施例的電子裝置之示意圖。 【主要元件符號說明】 [0064] 表面電容式觸控面板：100、400、600 [0065] 基板：102 [0056] 〇 [0057] [0058] [0059] [0060] [0061] [0062] [0063] 099106825 表單編號A0101 第19頁/共34頁 0992012335-0 201131452 [0066] 導電薄膜：11 0 [0067] 侧邊：11 2、11 4、11 6、11 8 [0068] 驅動感測電極：1 2 0、4 2 0、6 2 0 [0069] 驅動電路：1 3 0 [0070] 接地單元：132 [0071] 掃描單元：134 [0072] 折線：310、320、330、340、350、360、370、380、 390 、 510 、 520 、 530 [0073] 第一驅動感測電極：422、622 [0074] 第二驅動感測電極：424、624 [0075] 電子裝置：700 [0076] 顯示面板：71 0 [0077] 顯示裝置：720 [0078] 輸入單元：730 [0079] 剖線：A-A’In the embodiment, the driving circuit 130 includes a grounding unit 132 and a scanning unit 134. The scanning unit 134 includes a charging circuit C, a storage circuit P and a reading circuit R, wherein the charging circuit C and the storage circuit Circuit P 099106825 Form No. A0101 Page 8 of 34 0992012335-0 201131452 Parallel and read "Connect to the storage circuit". [0029] Switch:: There are four switch switches, which are respectively controlled to scan mrsw3J^_SW4. The circuit 1 is used to store the sugar and the reading is conducted to drive the sensing electrode 120. And, :, V:_2 is used to control whether the charging circuit c is connected to the open_to switch sw?"3 to control whether the storage circuit P and the read circuit scale are connected. #制驱 Another 'switch_set to the ground unit In 132, the working sensing electrode 120 is used for grounding. In the example, the axis mode of the capacitive touch panel is, for example, driving the sensing electrode 丨2 D to receive the signal of the scanned sensing electrode 逐. Here, the so-called stepwise scanning means that the driving sensing electrodes 120 are electrically connected to the scanning unit 134 in batches or one by one. When the +--sensing electrode 12Q and the scanning unit 134 are turned on, the other driving sensing electrodes 12A are electrically connected to the grounding unit 132. In addition, the scanning order of the local month is not necessarily in accordance with the arrangement position of the driving sensing electrodes 12 空间 in the space. For example, the driving sensing electrodes of the edge of the drawing may be left to right, right to left, and spaced apart. Multiples are separated or scanned in the order of no special rules. [0031] In detail, the driving sensing electrodes 12 of the surface capacitive touch panel 1 are sequentially arranged, for example, as electrodes XI, electrodes X2, electrodes χ3, electrodes χ4, electrodes Χ5, electrodes Χ6, electrodes Χ7, and electrodes. "In the design of this embodiment, in order to make the electrode Χ3 and the scanning unit 134 conductive, the switch SW1 in the scanning unit 134 needs to be turned on and the switch SW4 in the ground unit 132 needs to be turned off. In addition, the electrode X3 and the ground are to be grounded. When the unit ι32 is turned on, the grounding unit 132 099106825 Form No. A0101 Page 9 / Total 34 Page 0992012335-0 The switch SW 4 in the 201131452 will be turned on and the switch S W1 in the scanning unit 1 3 4 will be turned off. Here, the grounding The unit 132 is, for example, a component that connects a mysterious ground potential or a fixed potential or a high impedance. [0032] For example, FIG. 3 illustrates that each switching switch in the driving circuit is in accordance with an embodiment of the present invention. Please refer to FIG. 3, and the waveforms of the waveforms shown in FIG. 3 are the driving waveforms of the switch SW1, the switch SW2, the switch SW3, and the switch SW4 from top to bottom. The time T1 is performed by the scanning action. Time In addition, in the embodiment, the time of the high level in each driving waveform indicates that the corresponding switches SW1 SW SW4 are turned on (ie, turn on), and the time of the low level indicates that the corresponding switch SW SW4 is Disconnected (ie, closed, tur η f f.) [0033] Please refer to FIG. 1 and FIG. 3 simultaneously, in time T1, the switch SW1 is turned on, and the switch SW4 is turned off. Therefore, the corresponding driving sensing electrode 120 will be turned on for scanning and sensing with the scanning unit 134. Further, in the time T1, the switch SW2 and the switch SW3 will alternately turn on one while the other is turned off. In the present embodiment, the switch SW2 'With the thief 阙Sf3. The time to be turned on is T2 and T3, respectively, and the switch SW2 is turned off. The switch SW3 will be delayed - the time tl is turned on. Thus the corresponding driving force in 'time T1' The measuring electrode 120 is alternately connected to the charging circuit C and the storage circuit p. In an embodiment, the time T1 is, for example, 20 microseconds (#s), and the time ^ and the time between the T3 is, for example, 0.3 microseconds. The time t1 is, for example, 0. 〇 25 microseconds. However, with different driving methods, time T3 It is also possible to follow the time T2, that is, the time t1 can be zero. In short, the length of these times is determined depending on factors such as the capability of the driving circuit 130 and the actual product size. [0034] In the present embodiment, 'charging The circuit C is connected, for example, to an electric grinder source (not all dry). 099106825 Form No. A0101 Page 10/34 pages 0992〇12335-〇201131452 The circuit ρ is connected, for example, to an external capacitor c〇ut. The surface capacitive type - the working board 10 导电 is electrically conductive when the user touches with a finger or a conductive medium, and a contact capacitance is generated between the 10 and the finger (or the conductive medium). At this time, the charging circuit c and the storage circuit Ρ alternately charge and discharge the contact capacitance. The reading circuit R can read the charging I of the contact capacitance of the timepiece, for example, the voltage value, as a basis for judging the touch position. In the present embodiment, the above design is only one practical way of driving circuit 130. In other embodiments, the driver circuit 130 can be comprised of other functional units [0035]. That is to say, the circuit design that can be connected to the driving sensing electrode 12 to determine the contact capacitance can be recognized as the layout design of each of the driving circuits 13A. ΟContinuously referring to FIG. 1, in a simulation test, the contact area caused by each touch action is, for example, preset to be 5 mm×5 mm, and the storage circuit ρ is set to have an external capacitance Cout of, for example, 1 〇〇 Pf. In addition, in this simulation test, simulations of nine touch positions will be performed, and the center points of these touch positions are, for example, position position IX, where position position 111 is aligned with electrode X4 'position IV to position VI respectively by position The position ΠΙ is shifted toward the electrode X5, and the position VII to the position IX are shifted from the position IV to the position VI toward the electrode X5, respectively. In the xenon experiment, the distance between the position VII to the position lx and the electrode μ is set equal to the distance between the position VI and the position IX and the electrode χ5. 4 to FIG. 6 are diagrams showing the signals received by the electrodes X3 to X6 under the simulation test. Referring to FIG. 1 and FIG. 4 simultaneously, the conductive film 11A of the present embodiment has impedance anisotropy, so the path transmission of current will be mainly parallel to the lower impedance direction D. When position I is touched, 099106825 received by electrode X3-X6 Form No. A0101 Page 11 / Total 34 Page 0992012335-0 201131452 [0037] [0038] [0039] 099106825 Signal (that is, reading circuit R reads When the voltage is substantially as shown in FIG. 4, the position Π and the position ill are touched, and the apostrophes received by the electrodes are respectively shown by the broken line 320 and the fold line 330 in FIG. 4 . Position 1 to position 111 are similarly aligned with the electrode Χ4, but different condition numbers can be generated. When the position 111 is touched, the signal received by the electrode Χ4 is the most in this simulation, when the touch position is I~IX. The closer the distance from the driving sensing electrode 12A is, the larger the corresponding driving field electrode 120 is (the fourth) signal, and the surface electric valley touch panel 100 can self-drive the value of the signal received by the sensing electrode 120. The coordinates of the touch position in the lower impedance direction D are judged. Next, referring to FIG. 5, the broken line 340 to the broken line 360 sequentially receive the signals received by the electrodes Χ3 to 6 when the touch position is at the position IVM. Since the position IV to the position VI are respectively shifted toward the electrode Χ5 with respect to the position position, the electrode Χ4 and the electrode Χ5 can charge and discharge the contact capacitance. However, when the touch contact is in position ^~, the signal received by the electrode χ4 will be higher than the signal received by the electrode Χ5. Similarly, referring to FIG. 6, the fold line 370~the stitch line 39〇 are sequentially touched positions. The signals received by the electrodes Χ3 to 6 are located at the position IX. Here, when the touch position is in the position VII to the position —, the electrode 乂4 and the electrode 乂5 can substantially receive the same signal. It can be seen from the signal relationship of Fig. 4 to Fig. 6 that if the touch position is judged to be in the higher impedance direction _ coordinate, the signals received by the adjacent three drive sensing electrodes 12 can be compared. For example, to determine the coordinates of the touch position in the higher impedance direction, the signals received by the adjacent three driving sensing electrodes 12G can be taken out, and the signal values of the two are higher, and the two are The signal value is interpolated or the corresponding coordinate value is obtained by adding the proportional relationship of form number A0101 page 12/34 page 0992012335-0 201131452. The proportional relationship described herein can be determined based on the change of the signal value received during the simulation process. [0040] Specifically, after the surface capacitive touch panel 1 is completed, the resolution can be determined according to the required resolution. A simulation test is performed at each position to determine a relationship that the signals received by the driving sensing electrodes 120 correspond to different touch positions. The relationship is established in the driving of the sensing chip as a basis for determining the touch position when the user actually operates the surface capacitive touch panel 100. G [0042] The conductive film of the present embodiment has an impedance anisotropy, so that the signals received by the driving sensing electrodes 120 can directly reflect the distance of the touch position. Therefore, the surface capacitive touch panel 10A has better sensing accuracy. In addition, the surface capacitive touch panel 10 can determine the touch position by directly reading the value of the electrode receiving signal and comparing the values of the signals received by the adjacent electrodes, without complicated driving methods and calculation programs. In general, the surface capacitive touch-sensitive bamboo shoots 10 本 proposed in the embodiment have the characteristics of simple structure, high sensing accuracy and simple driving method. FIG. 7 is a schematic diagram of a surface capacitive touch panel according to another embodiment of the present invention. Referring to FIG. 7, the surface capacitive touch panel 400 includes a conductive film 110, a plurality of driving sensing electrodes 420, and a driving circuit 13A. In the present embodiment, the conductive film 110 is the same as the conductive film of the foregoing embodiment, and the design of the driving circuit 130 is also the same as that of the foregoing embodiment, and the same elements will be denoted by the same reference numerals. The driving sensing electrode 420 of this embodiment includes a plurality of first driving sensing electrodes 422 and 099106825 a plurality of second driving sensing electrodes 424. Form No. A0101 Page 13 of 34 °992012335-0 201131452 [0043] Specifically, the first driving sensing electrode 422 and the second driving sensing electrode 424 are respectively located on opposite sides of the conductive film no, that is, Side 112 and side 116. The size and pitch design of the first driving sensing electrode 422 and the second driving sensing electrode 428 can be referred to the description of the foregoing embodiment, but can also be adjusted according to the requirements of the product and the application. The straight line L of each of the first driving sensing electrodes 422 and any one of the second driving sensing electrodes 424 intersects the lower impedance direction d without being parallel. That is, the arrangement positions of the first driving sensing electrode 42 2 and the second driving sensing electrode 4 24 are staggered with each other. [0044] The driving method of the surface capacitive touch panel 400 is, for example, scanning and sensing the first driving sensing electrode 422 and the second driving sensing electrode 424 one by one. When the first driving sensing electrodes 422 are sequentially scanned and sensed, the second driving sensing electrodes 424 are all turned on to the grounding unit 132. Similarly, when the second driving sensing electrodes 424 are sequentially scanned and sensed, The first driving sensing electrodes 422 are all turned on to the ground unit 132. Therefore, the driving sensing electrode 420 on the side ^ 2 , that is, the first hearing sensing electrode 422 , performs the second driving sensing electrode on the other side 116 of the conductive thin film 11 while scanning and sensing. 424 will be connected to ground potential or a fixed potential or - two impedance components. The driving sensing electrode 42A on the side 116, that is, the second driving sensing electrode 424, when scanning and sensing, the other side 112 of the conductive film U0 is connected to the ground potential or a fixed low potential. In addition, the driving method of the surface capacitive touch panel 400 may be to alternately scan and sense the first driving sensing electrode 422 and the second driving sensing electrode 424. That is, after one of the first driving sensing electrodes 099106825 Form Dock Number Α0101 Page 14/34 Pages 0992012335-0 201131452 422 is scanned, one of the second driving sensing electrodes 424' is taken and then scanned The other one drives the sensing electrode 422, and then scans the second driving sensing electrode 424. That is to say, the electricity 16 on both sides ι ΐ 2 may not be scanned in the special (four) order to determine the coordinates of the touch position. [0046] Further, the driving method of the surface capacitive touch panel 400 can also scan and sense only the driving sensing electrodes 42q on the side 112, that is, the first driving sensing electrodes 422'. At this time, all of the second driving sensing electrodes 424 are fixedly connected to a ground potential or a solid (four) potential or a question impedance element. Or, only the driving sensing electrodes 42 on the side u 6 , that is, the second driving sensing electrodes 424 are scanned and sensed, and all the first driving sensing electrodes 422 are fixedly connected to the ground. Potential or a fixed potential or a high impedance component. [0047] The design of the surface capacitive touch panel 4A helps to amplify the signal variability received by each of the driving sensing electrodes 420. For example, FIG. 8 illustrates the signals received by the electrodes X3 to X6 of the surface capacitive touch panel 400 in the simulation test. Otherwise, the broken lines 510 to 530 shown in Fig. 8 indicate the signals received by the surface capacitive touch panel 4 of Fig. 7 when the position position 1! 丨 is touched, respectively. The simulation test described herein employs the same parameters as the simulation test described in the foregoing embodiment, except for the configuration in which the sensing electrode 42A is driven. In other words, Fig. 8 and Fig. 4 respectively show simulation results when the driving sensing electrodes are arranged differently. In addition, the simulation test of the present embodiment can perform scanning and driving using the above various methods, that is, driving the scanning of the sensing electrode 420; the process does not need to be defined, and only a part of the electrodes in the driving sensing electrode 420 can be driven. Into 099106825 Form No. A0101 Page 15 of 34 〇992〇12335~〇201131452 Line scanning and sensing. [0048] In the signal generated by the bump, the signal high value difference Δ the high value Vh has a larger ratio, indicating that the variability of the signal is more.. ^When the variability of the nickname increases, the signal range can be cut, the surface ° In other words, even if the offset of the touch position is reduced, the touch panel MG can be effectively recognized, and some will have a fire level resolution. Therefore, as can be seen from Fig. 4 and Fig. 8, the simulation results of Fig. 8 can provide a larger signal variation under the same selection of 〆 二, and the 疋 疋 。 。 。 。 。 。. In other words, in the same panel ruler, the surface electric valley touch panel 400 can distinguish more touch points than the surface capacitive touch panel (10). That is, the capacitive touch panel 4〇G can further improve the positioning resolution by merely changing the arrangement position of the driving sensing electrodes. [0049] Further, the figure is referred to as a surface capacitive touch panel of still another embodiment of the present invention. Referring to FIG. 9, the surface capacitive touch panel 6A is substantially the same as the surface capacitive touch panel 400, wherein the same components will be denoted by the same symbol. The difference between the surface capacitive touch surface panel and the surface capacitive touch panel 400 is that the alignment positions of the driving sensing electrodes 62 are aligned in pairs. That is, the 'drive sensing electrode 62' includes a plurality of first driving sensing electrodes 622 disposed on the side 11 2 and a plurality of second driving sensing electrodes 624 disposed on the side 116. Further, the straight connection line L of each of the first driving sensing electrodes 622 and one of the second driving sensing electrodes 624 is parallel to the lower impedance direction D. More specifically, the straight line L of each of the first driving sensing electrodes 622 and the closest one of the second driving sensing electrodes 624 is parallel to the lower impedance direction d. 099106825 Form No. A0101 Page 16 / Total 34 Pages 0992012335-0 201131452 [0050] It is known that the driving method of the surface capacitive touch panel 6〇〇, for example, a first drive that aligns with each other The sensing electrode 622 scans and senses simultaneously with the corresponding second driving sensing electrode 624. That is, when the driving sensing electrodes 620 are arranged as the electrodes X1 to χΐ2, the electrodes 与1 and the electrodes X7 can be simultaneously connected to the scanning unit 134 for scanning and sensing, and the remaining driving sensing electrodes 620 are connected to the grounding unit. 132. Similarly, the electrode X2 and the electrode 朗8, the electrode χ3 and the electrode pair, the electrode χ4 and the electrode 成ίο, the electrode Χ5 and the electrode X11 are paired, and the electrode χ6 is paired with the electrode XI2, and the pair of electrodes can simultaneously Scan and sense. However, in other embodiments, two or more electrodes of the electrode Xb electrode X6 on the same side can be simultaneously scanned and sensed. When the pair of driving sensing electrodes 62G are scanned and sensed, the position of the contact capacitance generated by the touch action in the lower impedance direction D can be simultaneously connected by the four driving sensing electrodes 62G of the = (four) signals. Judge. By such a driving method, the positioning accuracy of the touch position, especially in the lower impedance direction D, can be further improved. In this embodiment, G [0052] The two pairs of electrodes (e.g., electrode χ丨 and electrode X?) can be scanned off or asynchronously. The surface capacitive touch panel described above can be applied to many optoelectronic components or electronic devices. For example, referring to the above-described surface electric valley type touch panel 1 〇〇, it can be combined with the display panel 710 to constitute a display device 72 (). That is, the surface capacitive touch panel 100 can be a member of the touch display I to provide a touch function I', and the t display panel 71G can be disposed on any side of the substrate (10). That is, the conductive film of the surface capacitive touch panel 110 099106825 Form No. A0101 Page 17 of 34 0992012335-0 201131452 can be disposed between the substrate 102 and the display panel 710. Of course, the display panel 710 can also be disposed on a side of the substrate 102 of the surface capacitive touch panel 100 away from the conductive film 110 (not shown). For example, the conductive film 110 of the surface capacitive touch panel 100 can be disposed under the substrate 102 as shown in FIG. 10, and the display panel 710 is disposed on a side of the substrate 102 that is closer to the conductive film 110. The display panel 710 may be disposed on the side of the substrate 102 that is away from the conductive film 110 (the display panel 710 is not particularly shown in FIG. 2). In addition, the display device 720 incorporating the surface capacitive touch panel 110 and the display panel 710 described above can be combined with an input unit 730 to form an electronic device 700. In such an electronic device 700, the input unit 730 is coupled to the display device 720 and provides input to the display device 720 to cause the display device 720 to display an image. The input unit can be, for example, a power start button or a shortcut key, etc., which can change the current state of the electronic device 700. Moreover, such an electronic device 700 can be a mobile phone, a digital camera, a personal digital assistant, a notebook computer, a desktop computer, a television set, a car display, or a portable DVD player. In summary, the present invention uses a material having impedance anisotropy to fabricate a conductive film of a touch panel. The current transmission of the touch panel has a certain directionality and can be used as a basis for judging the touch position. Therefore, the present invention can perform two-dimensional positional positioning calculation using a single-layer conductive film. In addition, based on the characteristics of the conductive film, the touch panel is more accurate than the conventional surface capacitive touch panel. Furthermore, the present invention can also improve the resolution or positioning accuracy of the touch panel according to different requirements by changing the arrangement position of the electrodes. 099106825 Form No. A0101 Page 18 of 34 0992012335-0 201131452 [0055] Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art does not deviate. In the spirit and scope of the present invention, the scope of protection of the present invention is defined by the scope of the appended claims. [FIG. 1 illustrates the present invention. A schematic diagram of a surface capacitive touch panel of one embodiment. 2 is a partial cross-sectional view of the surface capacitive touch panel of FIG. 1 taken along line A-A'. 3 is a schematic diagram showing driving waveforms of a switching switch in a driving circuit in a driving circuit according to an embodiment of the present invention. Figures 4 through 6 illustrate the signals received by electrodes X3 through X6 for a simulated test. . . , ',:, FIG. 7 is a schematic diagram of a capacitive touch panel according to another embodiment of the present invention. FIG. 8 is a diagram showing the signals received by the electrodes X3 to X6 of the surface capacitive touch panel 400 in a simulation test. FIG. 9 illustrates a surface capacitive touch panel according to still another embodiment of the present invention. FIG. 10 is a schematic diagram of an electronic device according to an embodiment of the present invention. [Main Component Symbol Description] [0064] Surface Capacitive Touch Panel: 100, 400, 600 [0065] Substrate: 102 [0056] [0058] [0059] [0062] [0062] 0063] 099106825 Form No. A0101 Page 19 / Total 34 Page 0992012335-0 201131452 [0066] Conductive film: 11 0 [0067] Side: 11 2, 11 4, 11 6 , 11 8 [0068] Drive the sensing electrode: 1 2 0, 4 2 0, 6 2 0 [0069] Drive circuit: 1 3 0 [0070] Ground unit: 132 [0071] Scan unit: 134 [0072] Polyline: 310, 320, 330, 340, 350, 360 370, 380, 390, 510, 520, 530 [0073] first driving sensing electrodes: 422, 622 [0074] second driving sensing electrodes: 424, 624 [0075] electronic device: 700 [0076] display panel :71 0 [0077] Display device: 720 [0078] Input unit: 730 [0079] Section: A-A'
[0080] 充電電路：C[0080] Charging circuit: C
[0081] 較低阻抗方向：D[0081] Lower impedance direction: D
[0082] 外部電容：Cout [0083] 較高阻抗方向：Η [0084] 位置：Ι~ΙΧ 099106825 表單編號Α0101 第20頁/共34頁 0992012335-0 201131452 [0085] [0086] [0087] [0088] [0089] [0090] [0091] ❹ [0092] [0093] [0094] ❹[0082] External Capacitance: Cout [0083] Higher Impedance Direction: Η [0084] Location: Ι~ΙΧ 099106825 Form Number Α 0101 Page 20 / Total 34 Page 0992012335-0 201131452 [0085] [0086] [0088] [0088 [0090] [0094] [0094] [0094] ❹
連線：L 儲存電路：P 讀取電路：R 開關：SW1、SW2、SW3、SW4 時間：ΤΙ、T2、T3、tl 訊號高值：Vh 長度：W1 間距：W2 電極：XI〜X12 訊號高值差：ΔΥΐ! 099106825 表單編號Α0101 第21頁/共34頁 0992012335-0Connection: L Storage circuit: P Read circuit: R Switch: SW1, SW2, SW3, SW4 Time: ΤΙ, T2, T3, tl Signal high value: Vh Length: W1 Spacing: W2 Electrode: XI~X12 Signal high value Poor: ΔΥΐ! 099106825 Form No. 1010101 Page 21 of 34 0992012335-0