201102906 六、發明說明： 【發明所屬之技術領域】 本發明有關於一種觸控面板結構，特別有關於一種採用 奈米碳管導電層的電阻式觸控面板，以及使用該新型觸控面 板的電子裝置。 【先前技術】 美國專利US 4,672，153, US 4,897,511分別揭露一種電阻 式觸控面板結構及位置感測方法。如第i圖所示，習知四線201102906 VI. Description of the Invention: [Technical Field] The present invention relates to a touch panel structure, and more particularly to a resistive touch panel using a carbon nanotube conductive layer, and an electronic using the same Device. [Previous Art] A resistive touch panel structure and a position sensing method are respectively disclosed in U.S. Patent Nos. 4,672,153 and 4,897,511. As shown in Figure i, the conventional four-line
電阻式觸控面板包括二相互疊合的第一導電膜i及第二導電 膜2,第一導電膜丨及第二導電臈2的表面具有透明導電材質The resistive touch panel comprises two first conductive films i and a second conductive film 2 stacked on each other, and the surface of the first conductive film and the second conductive layer 2 has a transparent conductive material.
所形成的導電層，第一導電臈i的左右兩側具有二平行的X 軸電極3a，3b ’第二導電膜2的上下兩侧具有二平行的γ轴電 極4a，4b。其中X軸電極3b與一電流源5電性連接，使第一導 電膜1在未被按壓的情況下可維持—定電位ν+; γ軸電極扑 透過-電阻6接地或連接至—相對低電位，使第二導電膜緯 持相對較低的電位。 為了量測接觸點的位置，χ轴電極3a，31)與 —------- 比季交器7電 性連接’ Y轴電極4a，4b與另—比較器8電性連接。當觸㈣ ^被接觸時，x軸電壓差值為〇，y轴電壓差值Vy亦為〇 备使用者按壓接觸點c，而第—導電膜i變形且碰觸到第二驾 電膜辦’X軸電壓差％，及作電壓差v/則分別為一介於v 因此習㈣四線電阻式觸控面板可透過χ例 X及Y軸電壓差Vy’，經一定的轉換方式求得接觸， C的X轴及γ轴座標。 201102906 為簡化說明，以下僅求得x轴座標為例。如第1圖所示， X軸座標d與第一導電膜寬度D之比值滿足下列公式：The formed conductive layer has two parallel X-axis electrodes 3a on the left and right sides of the first conductive 臈i, and the second conductive film 2 has two parallel γ-axis electrodes 4a, 4b on the upper and lower sides. The X-axis electrode 3b is electrically connected to a current source 5, so that the first conductive film 1 can maintain a constant potential ν+ without being pressed; the γ-axis electrode is transmitted through the resistor 6 or connected to the relatively low voltage. The potential causes the second conductive film to have a relatively low potential. In order to measure the position of the contact point, the x-axis electrodes 3a, 31) are electrically connected to the other comparator 8 than the y-axis 7a, 4b. When the touch (4) is contacted, the x-axis voltage difference is 〇, and the y-axis voltage difference Vy is also the backup user pressing the contact point c, and the first conductive film i is deformed and touches the second driving film. 'X-axis voltage difference%, and the voltage difference v/ are respectively between v. Therefore, the four-wire four-wire resistive touch panel can be contacted through a certain conversion method through the X and Y-axis voltage difference Vy'. , C's X-axis and γ-axis coordinates. 201102906 To simplify the description, the following only considers the x-axis coordinates as an example. As shown in Fig. 1, the ratio of the X-axis coordinate d to the width D of the first conductive film satisfies the following formula:
d_ DD_ D
RaRa
Ra+RbRa+Rb
(A) 其中，Rfilm為第一導電膜及第二導電膜的面電阻， ^contact 為接觸電阻，Riine為X軸電極3a，3b以及各週邊導線至比較器 7之且所形成的等效導線電阻。 習知導電膜所採用的透明導電材料一般為氧化銦錫 φ (indium tin oxide, ITO) ’ 其膜化面電阻一般介於30〜100 Ω/α 之間。為避免量測誤差，接觸電阻Rcontact及導線電阻Rline需 小於15Ω，換言之，在接觸電阻無法改善的狀況下，導線電 阻Riine越小，也就是各週邊導線的線徑越寬時，所測得的X 座標值越準確。 隨著現在消費者的品味要求越來越高，各種搭配觸控面 板的電子裝置如：行動電話或數位相機等，也越來越要求窄 邊框或「無邊框」設計，但受限於透明透電材料IT〇的材料 # 特性’週邊導線的線控需大於一既定值，往往使觸控面板的 邊框無法更進一步縮減，或需要高解析度的電子偵測系統， 而造成產品設計上的限制。 【發明内容】 本發明提供一種新型觸控面板結構，透過採用不同的導 電層材質，提高觸控面板的可靠度，同時可配合導電層的高 阻抗特性，大幅縮減觸控面板邊框的寬度，以符合不同的設 計需求。 201102906 本發明提供一種觸控面板，其包括第一基板及第二基 板，第一基板具有第一導電層及第一週邊導線；第二基板與 第一基板相疊合設置，第二基板具有第二導電層，設置於面 對第一導電層的一側。其中第一導電層及第二導電層具阻抗 異向性，第一基板及第二基板以第一導電層及第二導電層重 合區域區分為一觸控區域及一邊緣區域，而第一週邊導線通 過上述邊緣區域’且邊緣區域寬度介於至1〇〇 [1111至1 mm之 間。 上述第一基板及第二基板以一環設於觸控區域外圍的 膠體層固定’且第-基板及第二基板具有複數個絕緣間隔 物，使第一導電層與第二導電層間隔一定間距。 其-人，第二基板具有第一電極、第二電極及第二週邊導 線。第:電極及第二電極相互平行設置於第二導電膜對側邊 緣’且第t極及第二電極之延伸方向與第—導電膜的主導 電方向垂直，第—週邊導線與第二電極電性連接，且第二週 邊導線通過姐區域，並與帛四電極重合。 #第基板另具有第二電極及第四電極，其相互平行設置 於第一導電膜對側邊緣，且第三電極及第四電極之延伸方向 與第一導電膜的主導電方向垂直；第三電極與該第—週邊導 線電I*生連接’且第一電極通過邊緣區域’同時*第一週邊導 線重合。 在較佳實施例令，第一導電潛及第二導電層為一平行 排⑽’T、米碳官層’其阻抗異向性比值介於勘至遞之間， 且第一導電層及第二導電層主要導電方向相互垂直。第一導 電層及第二導電層之表面電阻介於IkQ/□至_似□之間。 201102906 在一較佳實施例中，第一、第二週邊導線及第一至第四 電極之線寬介於至50μιη至500 μιη之間。 此外，本發明另一實施例亦提供一種應用上述觸控面板 的電子裝置，電子裝置的本體具有一顯示營幕，觸控面板疊 合設置於顯示螢幕上。該觸控面板包括第一基板及第二基 板’第一基板具有第一導電層及第一週邊導線；第二基板與 第一基板相疊合設置，第二基板具有第二導電層，設置於面 對第一導電層的一側。其中第一導電層及第二導電層為具阻 # 抗異向性的平行奈米破管層’第一基板及第二基板以第一導 電層及第二導電層重合區域區分為一觸控區域及一邊緣區 域，而第一週邊導線通過上述邊緣區域，且邊緣區域寬度介 於至100 μπι至1 mm之間。 在一較佳實施例中，第一導電層及第二導電層為一平行 排列的奈米礙管層，其阻抗異向性比值介於1〇〇至2〇〇之間， 且第一導電層及第二導電層主要導電方向相互垂直。第一導 電層及第二導電層之表面電阻介於1 Ι^Ω/□至800 kQ/□之間。 • 第一、第二週邊導線及第一至第四電極之線寬介於至50 μπι 至500 μιη之間。 在另一實施例中，顯示螢幕以樞接方式設置於電子裝置 本體之一侧，觸控面板可是以疊合方式設置於顯示螢幕上， 或是另外設置於電子裝置本體上。 在一較佳實施例中，該電子褒置更包括一裝飾膜，疊合 设置於觸控面板上相對於苐一導電層的一側，且該裝飾膜具 有一與觸控區域對應的透明區及一與邊緣區域對應的非透 明區，以符合外觀設計的需求。 201102906 【實施方式】 第2圖為本發明一實施例的電阻式觸控面板組合圖。如 第2圖所示，觸控面板200由二導電膜210, 220相疊合而成， 二導電膜210, 220以一環形膠體層230黏合固定，中央均均散 佈複數個絕緣間隔物232(spacer)，使二導電膜210, 220維持 一固定間距。 導電膜210包括一基板211，一導電層213藉由膠體層212 黏合固定於基板211表面。在導體層213表面另設置電極 φ 214、電極215以及週邊導線216。其中電極214, 215相互平行 設置於導電膜213對侧邊緣。週邊導線216為電極214的延 伸，其沿著導電層213外側邊緣平行延伸，末端延伸至導電 膜210的下緣中央，作為傳遞訊號之用。 導電膜220亦包括一基板221，另一導電層223藉由膠體 層222黏合固定於基板221表面。在導體層223表面另設置電 極224、電極225以及週邊導線226，電極224及電極225相互 平行設置於導電膜223上，但相對於電極214及電極215不同 • 側、且相互垂直的對側邊緣。週邊導線225為電極224及電極 225的延伸，其沿著導電層223下緣平行延伸，其末端延伸至 導電膜220的下緣中央，作為傳遞訊號之用。 此外’觸控面板200另包括一軟性印刷電路板240，其具 有複數個金屬接點241 ’在環形膠體層23〇下緣_央具有一缺 口 231。在組裝時，該缺口 231與軟性電路板240對應，軟性 電路板240上下的金屬接點241可與導電膜21〇及導電膜22〇 上的週邊導線216, 226的末端電性連接，透過週邊導線216, 201102906 226可使外部電訊號傳遞到導電層2l〇的電極214、電極215以 及導電層220的電極224、電極225上。 在一較佳實施例中，環形膠體層230、膠體層212及膠體 層222可以是熱固化膠、UV固化膠。 在台灣專利公開案（公開號：TW 200920689)「奈米碳管 薄膜製備裝置及其製備方法」中，揭露一種奈米碳管薄膜的 製備方法，藉由該方法可產生一具有導電特性的奈米碳管薄 膜’且因該方法是由超順垂直排列奈米碳管陣列（Super # Vertical-Aligned Carbon Nanotube Array)透過拉伸方式製 成，可應用於製作透明導電膜。 為了提南觸控面板的可靠度，並縮減觸控面板的邊框寬 度’本發明實施例中之導電層213及導電層223是以上述方法 所形成的奈米碳管導電薄膜所構成。但因拉伸製程中，長鍊 狀奈米碳管約略沿著拉伸方向平行排列，而導電膜在拉伸方 向具有較低阻抗，在垂直拉伸方向阻抗約為拉伸方向阻抗的 50至350倍之間’其表面電阻也因量測的位置不同、方向不 • 同而介於1 kQ/口至800 ΙίΩ/□之間，因此導電層213及導電層 223具有阻抗異向性（或稱為導電異方向性，Anisotropic Conductivity) 〇 如第2圖所示’在本發明實施例中’導電層213具有一主 導電方向卩1(原導電膜拉伸方向，亦即阻抗較低的方向），導 電層223具有另一主導電方向P2，且導電層213的主要導電方 向Pi及導電層223的主要導電方向P2相互垂直。 在一較佳實施例中，導電層213與導電層223之主導電方 向阻抗約為3 kQ/□至5 kQ/□之間，垂直主導電方向阻抗約 201102906 為250 ΙίΩ/口至600 kQ/□之間；因此，導電層213與導電層223 之阻抗異向性比值約略介於100至200之間。易言之，導電層 213與導電層223在垂直主導電方向p2的阻抗約為主導電 方向PhP〗阻抗的100至200倍之間。(A) wherein Rfilm is the sheet resistance of the first conductive film and the second conductive film, ^contact is the contact resistance, Riine is the X-axis electrode 3a, 3b, and the equivalent wire formed by each peripheral wire to the comparator 7 resistance. The transparent conductive material used in the conventional conductive film is generally indium tin oxide (ITO), and its filming surface resistance is generally between 30 and 100 Ω/α. In order to avoid the measurement error, the contact resistance Rcontact and the wire resistance Rline need to be less than 15Ω. In other words, in the case where the contact resistance cannot be improved, the smaller the wire resistance Riine, that is, the wider the wire diameter of each peripheral wire, the measured. The more accurate the X coordinate value. With the increasing demand for consumer tastes, electronic devices such as mobile phones or digital cameras that are equipped with touch panels are increasingly requiring narrow bezels or "no borders" designs, but are limited by transparency. The material of the electrical material IT〇# The characteristic of the peripheral wire needs to be greater than a predetermined value, which often makes the frame of the touch panel cannot be further reduced, or requires a high-resolution electronic detection system, which causes product design restrictions. . SUMMARY OF THE INVENTION The present invention provides a novel touch panel structure, which can improve the reliability of the touch panel by using different conductive layer materials, and can greatly reduce the width of the touch panel frame by matching the high-impedance characteristics of the conductive layer. Meet different design needs. The present invention provides a touch panel including a first substrate and a second substrate, the first substrate has a first conductive layer and a first peripheral wire; the second substrate is disposed on the first substrate, and the second substrate has a second substrate The second conductive layer is disposed on a side facing the first conductive layer. The first conductive layer and the second conductive layer have impedance anisotropy, and the first substrate and the second substrate are divided into a touch area and an edge area by the first conductive layer and the second conductive layer overlapping area, and the first periphery The wire passes through the edge region 'and the edge region width is between 1 〇〇 [1111 to 1 mm. The first substrate and the second substrate are fixed by a colloid layer disposed on a periphery of the touch area, and the first substrate and the second substrate have a plurality of insulating spacers, and the first conductive layer and the second conductive layer are spaced apart from each other by a certain interval. The human substrate has a first electrode, a second electrode, and a second peripheral wire. The first electrode and the second electrode are disposed in parallel with each other on the opposite side edge of the second conductive film, and the extending direction of the tth electrode and the second electrode is perpendicular to the main conductive direction of the first conductive film, and the first peripheral wire and the second electrode are electrically connected. The connection is made, and the second peripheral wire passes through the sister region and coincides with the four electrodes. The second substrate further has a second electrode and a fourth electrode, which are disposed in parallel with each other on the opposite side edge of the first conductive film, and the extending directions of the third electrode and the fourth electrode are perpendicular to the main conductive direction of the first conductive film; The electrode is electrically connected to the first peripheral conductor and the first electrode passes through the edge region 'at the same time* the first peripheral conductor coincides. In a preferred embodiment, the first conductive potential and the second conductive layer are a parallel row (10) 'T, the carbon carbon layer' has an impedance anisotropy ratio between the mapping and the first conductive layer and the first conductive layer The two conductive layers have a main conductive direction perpendicular to each other. The surface resistance of the first conductive layer and the second conductive layer is between IkQ/□ and _like. 201102906 In a preferred embodiment, the line widths of the first and second peripheral wires and the first to fourth electrodes are between 50 μm and 500 μm. In addition, another embodiment of the present invention provides an electronic device using the touch panel. The body of the electronic device has a display screen, and the touch panel is disposed on the display screen. The touch panel includes a first substrate and a second substrate. The first substrate has a first conductive layer and a first peripheral conductive line. The second substrate is disposed on the first substrate. The second substrate has a second conductive layer. Facing one side of the first conductive layer. The first conductive layer and the second conductive layer are parallel nano tube breaking layers with resistance # anisotropy. The first substrate and the second substrate are separated into a touch by the first conductive layer and the second conductive layer overlapping area. a region and an edge region, and the first peripheral wire passes through the edge region, and the edge region has a width of between 100 μm and 1 mm. In a preferred embodiment, the first conductive layer and the second conductive layer are a parallel array of nano-barrier layers having an impedance anisotropy ratio between 1 〇〇 and 2 ,, and the first conductive layer The main conductive layers of the layer and the second conductive layer are perpendicular to each other. The surface resistance of the first conductive layer and the second conductive layer is between 1 Ι^Ω/□ and 800 kQ/□. • The first and second peripheral wires and the first to fourth electrodes have a line width of between 50 μm and 500 μm. In another embodiment, the display screen is pivotally disposed on one side of the electronic device body, and the touch panel may be disposed on the display screen in a stacked manner or separately disposed on the electronic device body. In a preferred embodiment, the electronic device further includes a decorative film disposed on a side of the touch panel opposite to the first conductive layer, and the decorative film has a transparent region corresponding to the touch region. And a non-transparent area corresponding to the edge area to meet the needs of the design. 201102906 Embodiments FIG. 2 is a combination diagram of a resistive touch panel according to an embodiment of the present invention. As shown in FIG. 2, the touch panel 200 is formed by laminating two conductive films 210 and 220. The two conductive films 210 and 220 are bonded and fixed by an annular colloid layer 230, and a plurality of insulating spacers 232 are dispersed in the center. Spacer) maintains the two conductive films 210, 220 at a fixed pitch. The conductive film 210 includes a substrate 211, and a conductive layer 213 is adhered and fixed to the surface of the substrate 211 by a colloid layer 212. Further, an electrode φ 214, an electrode 215, and a peripheral lead 216 are provided on the surface of the conductor layer 213. The electrodes 214, 215 are disposed in parallel with each other on the opposite side edges of the conductive film 213. The peripheral wire 216 is an extension of the electrode 214, which extends in parallel along the outer edge of the conductive layer 213, and the end extends to the center of the lower edge of the conductive film 210 for transmitting signals. The conductive film 220 also includes a substrate 221, and the other conductive layer 223 is bonded and fixed to the surface of the substrate 221 by a colloid layer 222. Further, an electrode 224, an electrode 225, and a peripheral lead 226 are disposed on the surface of the conductor layer 223. The electrode 224 and the electrode 225 are disposed on the conductive film 223 in parallel with each other, but opposite sides of the electrode 214 and the electrode 215 are perpendicular to each other. . The peripheral wire 225 is an extension of the electrode 224 and the electrode 225, which extends in parallel along the lower edge of the conductive layer 223, and the end thereof extends to the center of the lower edge of the conductive film 220 for transmitting signals. In addition, the touch panel 200 further includes a flexible printed circuit board 240 having a plurality of metal contacts 241' having a notch 231 at the lower edge of the annular colloid layer 23. When assembled, the notch 231 corresponds to the flexible circuit board 240. The metal contacts 241 on the upper and lower sides of the flexible circuit board 240 can be electrically connected to the ends of the peripheral wires 216, 226 on the conductive film 21 and the conductive film 22, and pass through the periphery. The wires 216, 201102906 226 can transfer the external electrical signals to the electrodes 214 of the conductive layer 21, the electrodes 215, and the electrodes 224 and 225 of the conductive layer 220. In a preferred embodiment, the annular colloid layer 230, the colloid layer 212, and the colloid layer 222 may be a heat curable adhesive or a UV curable adhesive. In the Taiwan Patent Publication (Publication No.: TW 200920689), "Nano Carbon Tube Film Preparation Apparatus and Preparation Method thereof", a method for preparing a carbon nanotube film is disclosed, by which a nematic having a conductive property can be produced. The carbon nanotube film 'is made by a super-vertical vertical carbon nanotube array (Super # Vertical-Aligned Carbon Nanotube Array) through stretching, and can be applied to a transparent conductive film. In order to improve the reliability of the touch panel and reduce the width of the frame of the touch panel, the conductive layer 213 and the conductive layer 223 in the embodiment of the present invention are formed by the carbon nanotube conductive film formed by the above method. However, in the stretching process, the long-chain carbon nanotubes are arranged in parallel along the stretching direction, and the conductive film has a lower impedance in the stretching direction, and the resistance in the vertical stretching direction is about 50 in the tensile direction impedance. Between 350 times, the surface resistance is also different due to the measured position, and the direction is not between 1. 1 kQ/port to 800 ΙίΩ/□, so the conductive layer 213 and the conductive layer 223 have impedance anisotropy (or It is called anisotropic conductivity. As shown in Fig. 2, in the embodiment of the present invention, the conductive layer 213 has a main conductive direction 卩1 (the direction in which the original conductive film is stretched, that is, the direction in which the impedance is low) The conductive layer 223 has another main conductive direction P2, and the main conductive direction Pi of the conductive layer 213 and the main conductive direction P2 of the conductive layer 223 are perpendicular to each other. In a preferred embodiment, the main conductive direction impedance of the conductive layer 213 and the conductive layer 223 is between about 3 kQ/□ and 5 kQ/□, and the vertical main conductive direction impedance is about 201102906 from 250 ΙίΩ/port to 600 kQ/ Between; therefore, the ratio of the impedance anisotropy of the conductive layer 213 to the conductive layer 223 is approximately between 100 and 200. In other words, the impedance of the conductive layer 213 and the conductive layer 223 in the vertical main conductive direction p2 is between about 100 and 200 times the impedance of the main conductive direction PhP.
在本發明實施例中，導電層213與導電層223由約略平行 排列的奈米碳管薄膜所構成，其阻抗約為傳統透明導電材料 ITO的30〜100倍之間。由習知技術中所揭示的公式（A)可知， 當電阻式觸控面板的Rfilm大幅增加時，在感測誤差的規格不 變的狀況下’接觸電阻Rc_act及導線電阻Rline約可容許等比 例放大。易言之，在導線材料不變以及製程許可的狀況下， 本發明實施例中之各電極及週邊導線的寬度可依一定比例 縮小，以縮減觸控面板邊緣走線區域的寬度。 第3A圖及第3B圖分別為導電膜210及導電膜220之上視 圖。如第3A圖及第3B圖所示，在本發明實施例中，導電層 213以膠黏合固定於導電膜210中央偏上方’留下左右兩側不 含導體層213長條形區域及下方接線區；另，導電層223以膠 黏合固定於導電膜220中央’留下上下兩侧不含導體層223的 邊緣 電麵 1蜞 長條形區域。由導電層213及導電層223重疊區域可定義 觸控區域T(以虛線表示），在觸控區域外圍的定義為一 區域B。導電膜210上的週邊導線216及導電獏223上的 224均通過左側邊緣區域B，導電膜21〇上的電極215及導 220上的週邊導線226則通過下侧邊緣區域B。 為了使邊緣區域B的寬度S較窄’本發明實施例中，導4 膜210上的電極214、電極215及週邊導線216、以及導電與2電 上的電極224、電極225以及週邊導線226可由印刷方式舍2〇 201102906 的銀漿層製成’導電膜21〇上的週邊導線216可與導電膜223 上的電極224重合或部份重合；導電膜21〇上的電極215可與 導電膜220上的週邊導線226重合或部份重合。週邊導線216 的線寬U及電極224、電極225的線寬t2可介於至50 μπι至500 μιη之間’左右兩側邊緣區域β的寬度s介於至1〇〇|101至1111111 之間。 在一較佳實施例中，週邊導線216的線寬h及電極224、 電極225的線寬k為1〇〇 pm，左右兩側邊緣區域B的寬度S則 # 可縮小到5〇〇 μπι以下，以符合不同的產品設計需求。 第4圖為採用本發明電阻式觸控面板的行動電話之組合 圖’其中行動電話僅為應用本發明電阻式觸控面板之一實施 例，亦可用於其他如：個行動助理（PDA)、衛星導航(GPS) 等，其應用範圍並不在此限。 如第4圖所示’行動電話300的本體31〇具有一顯示螢幕 320，本發明第一實施例之觸控面板2〇〇疊合設置於顯示榮幕 320上’觸控面板200再透過軟性電路板24〇與位於行動電話 鲁本體310内的連接器330電性連接，以感測使用者的觸控動 作。另外’在觸控面板200上方可設置一裝飾膜340，裝飾膜 340具有一與觸控面板2〇〇之觸控區域τ對應的透明區及一與 邊緣區域B對應的非透明區，藉由裝飾板34〇的非透明區遮蓋 觸控面板上的線路，以美化行動電話300的外觀。其次，觸 控面板200的邊緣區域B較窄，設計時可採用較大的顯示營幕 320 ’增加可視範圍，亦可大幅增加產品的設計彈性。 第5圖為採用本發明電阻式觸控面板的筆記型電腦之組 合圖。如第5圖所示，一平面顯示螢幕420樞接於筆記型電腦 201102906 本體410，本發明第一實施例之觸控面板2〇〇與裝飾板34〇貼 合後，再疊合設置於顯示螢幕41〇上，其邊緣區域較窄，其 亦可符合筆記型電腦的設計需求。 此外，本發明實施例觸控面板200所使用之基板211, 221，除了可使用透明材質如：pE，pC, PET, PMMA^薄化後 的玻璃基板外’在不與顯示螢幕疊合使用的狀況下，如：第 4圖中筆記型電腦400本體410上的觸控板，亦可使用染色或 鍍膜後的不透明PE，PC，PET, PMMA或薄化後的玻璃基板， • 由二不透明的導電膜，組成不透明的觸控面板。 雖然本發明已於較佳實施例揭露如上，然其並非用以阳 定本發明，任何熟習此項技藝者，在不脫離本發明之精神和 範圍内，仍可作些許的更動與潤飾，因此本發明之保護範圍 當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 第1圖為習知四線式電阻式觸控面板之示意圖。 Φ 第2圖為本發明電阻式觸控面板之組合圖。 第3A圖為第2圖中第一導電膜之上視圖。 第3B圖為第2圖中第二導電膜之上視圖。 -第4圖為採用本發明電阻式觸控面板的行動電話之組人 圖。 ° 第5圖為採用本發明電阻式觸控面板的筆記型電腦之組 合圖。 、 【主要元件符號說明】 11 201102906In the embodiment of the present invention, the conductive layer 213 and the conductive layer 223 are composed of a carbon nanotube film arranged approximately parallel, and the impedance is between 30 and 100 times that of the conventional transparent conductive material ITO. According to the formula (A) disclosed in the prior art, when the Rfilm of the resistive touch panel is greatly increased, the contact resistance Rc_act and the lead resistance Rline can be allowed to be equal in the case where the specification of the sensing error is constant. amplification. In other words, the width of each electrode and the peripheral wires in the embodiment of the present invention can be reduced according to a certain ratio in order to reduce the width of the edge area of the edge of the touch panel. 3A and 3B are top views of the conductive film 210 and the conductive film 220, respectively. As shown in FIG. 3A and FIG. 3B, in the embodiment of the present invention, the conductive layer 213 is fixed to the center of the conductive film 210 by adhesive bonding, leaving the left and right sides without the conductor layer 213 elongated area and the wiring below. In addition, the conductive layer 223 is fixed to the center of the conductive film 220 by adhesive bonding, leaving an edge portion of the edge electric surface 1 without the conductor layer 223 on the upper and lower sides. The touch area T (indicated by a broken line) may be defined by the overlapping area of the conductive layer 213 and the conductive layer 223, and the area around the touch area is defined as an area B. The peripheral wires 216 on the conductive film 210 and the 224 on the conductive turns 223 pass through the left edge region B, and the electrodes 215 on the conductive film 21 and the peripheral wires 226 on the conductive wires pass through the lower edge region B. In order to make the width S of the edge region B narrower, in the embodiment of the present invention, the electrode 214, the electrode 215 and the peripheral wire 216 on the conductive film 210, and the electrode 224, the electrode 225, and the peripheral wire 226 on the conductive and the second electrode may be The silver paste layer of the printing method 2 201102906 can be made as the peripheral wire 216 on the conductive film 21 can overlap or partially overlap the electrode 224 on the conductive film 223; the electrode 215 on the conductive film 21 can be connected to the conductive film 220 The upper peripheral wires 226 overlap or partially overlap. The line width U of the peripheral wire 216 and the line width t2 of the electrode 224 and the electrode 225 may be between 50 μm and 500 μm. The width s of the left and right edge regions β is between 1〇〇|101 and 1111111. . In a preferred embodiment, the line width h of the peripheral conductor 216 and the line width k of the electrode 224 and the electrode 225 are 1 〇〇 pm, and the width S of the left and right edge regions B can be reduced to less than 5 〇〇 μπι. To meet different product design needs. 4 is a combination diagram of a mobile phone using the resistive touch panel of the present invention. The mobile phone is only one embodiment of the resistive touch panel of the present invention, and can also be used for other mobile assistants (PDAs), Satellite navigation (GPS), etc., its application range is not limited to this. As shown in FIG. 4, the main body 31 of the mobile phone 300 has a display screen 320. The touch panel 2 of the first embodiment of the present invention is stacked on the display screen 320. The circuit board 24 is electrically connected to the connector 330 located in the mobile phone body 310 to sense the user's touch action. In addition, a decorative film 340 can be disposed above the touch panel 200. The decorative film 340 has a transparent area corresponding to the touch area τ of the touch panel 2 and a non-transparent area corresponding to the edge area B. The non-transparent area of the decorative panel 34 遮 covers the lines on the touch panel to beautify the appearance of the mobile phone 300. Secondly, the edge area B of the touch panel 200 is narrower, and the larger display screen 320' can be used to increase the visible range, which can greatly increase the design flexibility of the product. Fig. 5 is a combination view of a notebook computer using the resistive touch panel of the present invention. As shown in FIG. 5, a flat display screen 420 is pivotally connected to the main body 410 of the notebook computer 201102906. The touch panel 2 of the first embodiment of the present invention is attached to the decorative panel 34, and then stacked on the display. On the screen 41, the edge area is narrower, which can also meet the design requirements of notebook computers. In addition, the substrate 211, 221 used in the touch panel 200 of the embodiment of the present invention can be used in a transparent material such as pE, pC, PET, PMMA^ thinned glass substrate, which is not used in combination with the display screen. In the case, for example, the touch panel on the body 410 of the notebook computer 400 in FIG. 4 can also use opaque PE, PC, PET, PMMA or thinned glass substrate after dyeing or coating, • by two opaque A conductive film that constitutes an opaque touch panel. While the invention has been described above in terms of the preferred embodiments thereof, it is not intended to be construed as a limitation of the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. [Simple Description of the Drawing] Fig. 1 is a schematic diagram of a conventional four-wire resistive touch panel. Φ Fig. 2 is a combination diagram of the resistive touch panel of the present invention. Fig. 3A is a top view of the first conductive film in Fig. 2. Fig. 3B is a top view of the second conductive film in Fig. 2. - Figure 4 is a diagram of a group of mobile phones using the resistive touch panel of the present invention. ° Fig. 5 is a combination view of a notebook computer using the resistive touch panel of the present invention. , [Main component symbol description] 11 201102906
1 第一導電膜 221 基板 2 第二導電膜 222 膠體層 3a, 3b X轴電極 223 導電層 4a, 4b Y軸電極 224 電極 5 電流源 224 電極 6 接地電阻 226 週邊導線 7 比較器 230 膠體層 8 比較器 231 缺口 C 接觸點 232 間隔物 D 第一導電膜寬度 240 軟性電路板 d X座標 241 金屬接點 vx X軸輸出電壓 Pi, P2 主導電方向 Vy Y軸輸出電壓 T 觸控區域 v+ 輸入電壓 Β 邊緣區域 Ra, Rb, Rc，Rd 電阻 S 邊緣區域寬度 200 觸控面板 ti 週邊導線寬度 210 導電膜 h 電極寬度 211 基板 300 行動電話 212 膠體層 310 電話本體 •213 導電層 320 顯-示螢幕 214 電極 330 連接器 215 電極 340 裝飾膜 216 週邊導線 400 筆記型電腦 220 導電膜 410 電腦本體 420 顯示螢幕 121 First conductive film 221 substrate 2 second conductive film 222 colloid layer 3a, 3b X-axis electrode 223 conductive layer 4a, 4b Y-axis electrode 224 electrode 5 current source 224 electrode 6 grounding resistance 226 peripheral wire 7 comparator 230 colloid layer 8 Comparator 231 notch C contact point 232 spacer D first conductive film width 240 flexible circuit board d X coordinate 241 metal contact vx X-axis output voltage Pi, P2 main conduction direction Vy Y-axis output voltage T touch area v+ input voltage边缘 Edge area Ra, Rb, Rc, Rd resistance S edge area width 200 touch panel ti peripheral wire width 210 conductive film h electrode width 211 substrate 300 mobile phone 212 colloid layer 310 phone body • 213 conductive layer 320 display-screen 214 Electrode 330 Connector 215 Electrode 340 Decorative film 216 Peripheral wire 400 Notebook 220 Conductive film 410 Computer body 420 Display screen 12