------^07-0813 28557twf.doc/n 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種觸控面板，且特別是有關於一種 具有平坦外表面的觸控面板。 【先前技術】 近年來，各式電子產品都不斷朝向操作簡便、小體積 以及大螢幕尺寸的方向邁進，特別是攜帶式的電子產品對 於體積及螢幕尺寸的要求更為嚴格。因此，許多電子產品 都將觸控面板與液晶顯示面板整合，以省略鍵盤或是操控 按鍵所需的空間，進而使螢幕可配置的面積擴大。 目前，觸控面板大致可區分為電阻式、電容式、紅外 ，式及超音波式等觸控面板，其中以電阻式觸控面板與電 容式觸控面板為最常見的產品。圖i繪示為習知的一種觸 控面板的剖面示意圖。請參照圖！，習知的觸控面板1〇〇 包括第一電極基板110以及第二電極基板12〇，第一電極 ❹ 練11G與第二電極棊板12G相互疊置且兩者間維持一微 小的間隙。使用者可直接以手或是觸控筆按壓第二電極基 板120以進行觸控操作。 只際上，第一電極基板11〇外侧連接有一可撓性電路 板130，且第一電極基板11〇以及第二電極基板12〇上分 別配置有導電薄膜(未繪示）。使用者的按壓動作將使第一 电極基板11〇以及第二電極基板12〇上的兩導電薄膜(未繪 示)產生電性訊號’並藉由可撓性電路板130傳輸至控制晶 201011614 ^07-0813 28557twf.d〇c/n 片以解析該電性訊號並觸觸控點的座標。------^07-0813 28557twf.doc/n IX. Description of the Invention: [Technical Field] The present invention relates to a touch panel, and more particularly to a touch having a flat outer surface panel. [Prior Art] In recent years, various electronic products have been moving toward simple operation, small size, and large screen size. In particular, portable electronic products have stricter requirements on volume and screen size. Therefore, many electronic products integrate the touch panel with the liquid crystal display panel to omit the space required for the keyboard or the control buttons, thereby expanding the configurable area of the screen. Currently, touch panels can be roughly classified into resistive, capacitive, infrared, and ultrasonic touch panels. Among them, resistive touch panels and capacitive touch panels are the most common products. Figure i is a cross-sectional view of a conventional touch panel. Please refer to the picture! The conventional touch panel 1A includes a first electrode substrate 110 and a second electrode substrate 12, and the first electrode 11 11G and the second electrode 12 12G are stacked on each other with a small gap therebetween. The user can directly press the second electrode substrate 120 with a hand or a stylus to perform a touch operation. In the meantime, a flexible circuit board 130 is connected to the outside of the first electrode substrate 11 and a conductive film (not shown) is disposed on the first electrode substrate 11 and the second electrode substrate 12, respectively. The pressing action of the user will cause the two conductive films (not shown) on the first electrode substrate 11 and the second electrode substrate 12 to generate an electrical signal ' and transmit to the control crystal 201011614 through the flexible circuit board 130. ^07-0813 28557twf.d〇c/n The chip analyzes the electrical signal and touches the coordinates of the touch point.
台灣專利公開號2GG632752 -案提出—種顯示面板 100之訊號傳輸線路的連接方式。其主要利用一金 140配置於第一電極基板no的貫孔，以使第I電 極基板12G上的訊號得以傳輪至可撓性電路板⑽上。同 時’為了使金屬針腳140與可撓性電路板13〇上的電路電 性連接’金屬針腳14〇具有—圓板狀頭部i術。此圓板狀 頭部14〇a凸出於電路板13〇外將使觸控面板則的外表面 無法平坦彳b，而賴控面板丨⑼與顯示面板等其他元件貼 附時產生困難。另外’圓板狀頭部14〇a所佔面積較大而可 能造成觸控面板1〇〇之動作區域的面積受限。 值得-提的是’利用金屬針腳的連接方式，可能產生 -些使觸控面板100良率受影響的問題。舉例而言， 針腳的尺寸過長可此使第二電極基板120受壓變形，^ β 金屬針腳的尺寸過短而使第二電極基板⑽與可撓性^ 板130之間有連接不良的問題。Taiwan Patent Publication No. 2GG632752 - the case of the connection of the signal transmission line of the display panel 100. It is mainly disposed on the through hole of the first electrode substrate no by a gold 140 so that the signal on the first electrode substrate 12G can be transmitted to the flexible circuit board (10). At the same time, in order to electrically connect the metal pin 140 to the circuit on the flexible circuit board 13, the metal pin 14 has a disk-shaped head. The fact that the disc-shaped head portion 14A protrudes from the circuit board 13 makes the outer surface of the touch panel unflattenable, and the control panel (9) is difficult to attach to other components such as the display panel. Further, the area occupied by the disc-shaped head portion 14a is large, and the area of the action area of the touch panel 1〇〇 may be limited. It is worth mentioning that the use of metal pin connections may result in problems that affect the yield of the touch panel 100. For example, if the size of the stitch is too long, the second electrode substrate 120 is deformed by pressure, and the size of the β metal pin is too short to cause a problem of poor connection between the second electrode substrate (10) and the flexible board 130. .
【發明内容】 本發明是提供一種觸控面板，以解決習知之 為了訊號傳輸線路的設計*具有科坦的外表面之^ 本發明提出一種觸控面板，包括一承載基材、— 板、—間隔層、—第二電極基板、—電路板以及多 條¥線。承縣材具有—凹槽、—上表面以及多個第一^ 孔，其中上表面與凹槽位於相對的兩側且第—貫孔連通^ 201011614 ^07-0813 28557twf.d〇c/n 上表面與凹槽。第—電極基板配置於承載基材之上表面 i二一電極基板具有多個第二貫孔以暴露出第-貫孔 ί:二Γ隔置於Γ電極基板上，且間隔層具有 第二雷、第二貝孔暴露出第二貫孔所在區域。 -電+基板配置於間隔層上，且具有多個連接電極。連 ^極被第三貫孔暴露出來。電路板配置於承载基材的凹 ❹ 四貫孔具有多個第四貫孔以及多個導電接塾。第 第貫孔所在區域。導線容置於相互連通之 接於:U—貫孔、第三貫孔以及第四貫孔内並電性連 接於連接電極以及導電接墊之間。 ❹在if Γ之—實施例中’上述之觸控面板更包括一保 護層’其配置於第-貫孔、第二貫孔、第三貫孔、第四貫 Γ=:Γ ί包覆導線。第三貫孔的孔徑例如是大於 第了貝孔與第二貫孔的孔徑，以使位於第—貫孔第二貫 孔以及第三貫孔中的部份保護層實f上為τ字型、 ::層可平凹槽。具體而言，保護層之材質例 如為-絕緣膠，其包括紫外光固化膠。 為多㈣财，上狀連接雜與導電接墊 八電性連接至連接電極。如此一來， 與至少一導電膠’其位於第-電極基板 至連接電極:a1 ’且導電膠使訊號傳輸電極電性連接 201011614 wr 7/^-0207-0813 28557twf.doc/n 在本發明之一實施例中，上述之觸控面板更包括—黏 著劑，其中電路板藉由黏著劑黏著於承載基材的凹槽内。 在本發明之一實施例中，上述之電路板實質上為—可 撓性電路板(Flexible Printed Circuit, FPC)。 在本發明之一實施例中，上述之導線的材質包括銀、 銘、銅或上述之組合。 本發明的觸控面板利用在承載基材上形成一凹槽的 ❹ 設計使得電路板及導線等線路埋設於凹槽以及連接凹槽的 貫孔中。因此，本發明之觸控面板可以具有平坦的外表面 以便與其他裝置貼附。此外，本發明之觸控面板中，呈上 下交錯配置的連接電極以及導電接墊利用導線之連結而可 於小範圍内達成訊號之連接，以提高觸控面板之動作區的 配置面積。 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 Θ 【實施方式】 圖2缘示為本發明之一實施例的觸控面板之局部立體 圖，而圖3為沿圖2之X方向所繪示之觸控面板的局部剖 面圖。請同時參照圖2與圖3，觸控面板200包括一承載 基材210A、一第一電極基板21〇B、一間隔層220、一第 二電極基板230、一電路板240以及多條導線250。承載基 材210A具有一凹槽212、一上表面214以及多個第一貫孔 201011614 ------207-0813 28557twf.doc/n ❹ Ο 216Α ’其中上表面214與凹槽212位於相對的兩側且第一 貫孔216Α連通上表面214與凹槽212。第一電極基板2腦 =於承載基材舰之上表面214上，且第—電極基板 210Β具有多個第二貫孔216Β以暴露出第一貫孔216八所 在區域。第二電極基板23〇具有多個連接電極232。間隔 層220配置於第一電極基板210Β與第二電極基板23〇之 間，且具有多個第三貫孔222，其中第三貫孔222係分別 暴露出第二貫孔216Β所在區域，同時暴露出第二電極基 板230上之連接電極232。電路板24〇配置於承載基材21〇八 的凹槽212巾，且電路板240具有多個第四貫孔犯以及 多個導電接墊244，其十導電接墊244係與連接電極232 呈上下交錯配置。第四貫孔242暴露出第一貫孔216八所 在區域，且導電接墊244係設於電路板24〇上。導線25〇 則電性連接於連接電極232以及導電接墊244之間。 在本實施例中，承載基材210Α具有凹槽212，且第 一貫孔216Α、第二貫孔2l6B、第三貫孔222以及第四貫 孔242是相互連貫並共同暴露出連接電極232。如此一來、， 位於第一貝孔216Α、第二貫孔216Β、第三貫孔222以及 第四貫孔242中並且電性連接於連接電極232以及導電接 墊244之間的導線250不會凸出於凹槽212之外。同時， 電路板240例如是一可撓性電路板’其也是埋設於凹槽212 之中。實務上，觸控面板200更包括一黏著劑26〇，其中 電路板240藉由黏著劑260黏著於承載基材2ι〇α上。 在本實施例中，凹槽212的設計可以將電路板24〇與 201011614 w 1 7，w 〜207Ό813 28557twf.doc/n 導線250埋設於其中。因此，除了電路板24〇的部份區域 會自觸控面板200之一旁延伸出來之外，觸控面板2〇〇的 外表面上不會有裸露的導線或是凸出的元件。觸控面板 200欲貼附於顯示面板等其他裝置上時，平坦的外表面有 助於提升兩裝置的貼附良率。 實際上，為了保護這些導線250，觸控面板200更包 括一保護層270，其配置於第一貫孔216A、第二貫孔 春 216B、第二貫孔222、第四貫孔242以及凹槽212中，並 包覆導線250。在本實施例中，保護層27〇的材質例如是 選用一絕緣膠體，例如紫外光固化膠等。另外，為了使觸 控面板200的外表面更佳平坦，保護層27〇實質上是填平 凹槽212而與承載基材21〇A遠離上表面214之一侧切^著。 如此，保護層270非旦可以保護導線25〇以避免導線25〇 受到腐# ’更可以提供—平坦的表面而有利於觸控面板 200的後續組裝製程。 在本實施例中，連接電極232例如為多個金屬電極。 ❹ 舉例而言，連接電極232可以是配置於第二電極基板23〇 上的銀電極。另外，在本實施例中例如是利用超音波震遺 金屬針頭之儀器以使導線25〇配置於第一貫孔216八、第二 貫孔216B、第三貫孔222以及第四貫孔犯巾。同時，導 線250的材質包括銀、銘、銅或其他的金屬材質。實務上， 連接電極232的表面可以配置有銀膠等導電性膠體以使導 線250與連接電極232的接合性更加提升。當然，以上之 連接電極232的材質以及導線25〇的製作方:僅為舉例說 201011614 ^07-0813 28557twf.doc/n 明之用，而本發明不限於此。 相較於習知利用金屬針腳的連接方式，本實施例利用 導線250連接於連接電極232與導電接墊244之間不僅可 以維持連接電極232與導電接墊244的電性連接關係並且 不會造成第二電極基板230受到壓迫而變形的情形。 進一步而言’為了強化保護層27〇的鑲固能力，本實 施例是使第三貫孔222的孔徑大於第一貫孔216A與第二 ❹ 貫孔216b的孔徑，使位於第一貫孔216A、第二貫孔216b 以及第二貫孔222中的保護層270實質上為T字型。因此， 一旦電路板240受到外力而向外拉張時，τ字型的設計可 以提供足夠的鑲固強度以避免保護層27〇向外脫離，並防 止導線250的斷裂或損壞。也就是說，本實施例不但藉由 凹槽212搭配第一貫孔216A、第二貫孔216B、第三貫孔 222以及第四貫孔242之設計可使得觸控面板200具有平 坦的外表面’且更進一步藉由貫孔之大小設計提供近似於 投錯作用’使保護層270具有更良好的信賴性，而提升觸 ❺ 控面板200之品質。 圖4與圖5為沿圖2之Y方向所繪示之觸控面板的局 部剖面圖’其中圖4係繪示第二電極基板230與電路板240 之電性連接關係’而圖5係繪示第一電極基板210B與電 路板240之電性連接關係。請先參照圖4，第一電極基板 210B與第二電極基板230例如都是由鍍覆有導電氧化層 (未緣示）的一可撓性基板所組成。在本實施例中，凹槽212 例如是位於承載基材210A上，而第一電極基板210B配置 11 201011614 ^07-0813 28557twf.doc/n 於承載基材210A上。承载基材21〇A例如是由玻璃、聚碳 酸酯等質地較硬的材料製作而成。使用者按壓觸控面板 2〇〇時’承載基材210A可以提供適當的承載力以避免觸控 面板200整體產生形變。 第二電極基板230中的導電氧化層（未繪示)係用以感 測使用者之觸控動作所產生的訊號。此外，第二電極基板 230之多個連接電極232電性連接於第二電極基板230之 φ 導電氧化層（未繪示）。在圖4所繪示的局部觸控面板200 中’第二電極基板230之導電氧化層（未繪示)上所產生的 感測訊號可以藉由連接電極232以及導線25〇傳輸至電路 板 240。 接著’請參照圖5，要使觸控面板200可以正確的進 行觸控感測，則第一電極基板21〇B之導電氧化層（未繪示) 上的訊號也必需傳遞至電路板240。因此，由圖5的局部 剖面圖來看，第一電極基板21〇B更具有多個訊號傳輸電 極218(圖中僅繪示一個為例），其用以使第一電極基板 ❹ 210B之導電氧化層（未繪示）電性連接至連接電極232。實 際上，為了使訊號傳輸電極218電性連接至連搂電極232， 觸控面板200可以更包括至少一導電膠28〇，其位於訊號 傳輸電極218與連接電極232之間。如此，第一電極基板 210B之導電氧化層（未繪示)上的訊號便可以藉由訊號傳輸 電極218、導電膠280、連接電極232以及導線250傳遞至 電路板240。 整體而言’本實施例的連接電極232有一部分是電性 12 201011614 ”〜^207-0813 28557twf.doc/n 連接至第-電極基板210B’而另一部份則是電性連接至第 二電極基板23G。如此-來’無論哪—個電極基板(2i〇b 或230)上所產生的訊號都可以藉由連接電極232與導線 250傳輸至電路板240以完成觸控控制訊號的傳輸。同時， 由圖4與圖5之剖面圖來看，觸控面板2〇〇之連接線路# 計可以使觸控面板200具有平坦的外表面，特別是承載^ 材210A之外側，因而有助於提升觸控面板2〇〇與二 ©置貼附時的製程良率。 、 在本實施例中’第一電極基板21〇]B與第二電極基板 230例如是由鍍覆有導電氧化層的可撓性塑膠基材所構 成。由於，觸控面板200往往會與顯示面板貼合以成為觸 控式顯不裝置，導電氧化層的材質較佳是選自透明的導電 ，氧化物以提供良好的透光率。舉例來說，透明的導電性 氧化物例如是銦錫氧化物、鋼鋅氧化物等。 圖6繪示為圖2的觸控面板之上視示意圖。請參昭圖 6,觸控面板200例如是具有一動作區AA以及位於動;^'區 ® AA周邊的線路區CA。動作區AA主要是觸控面板200可 執行觸控控制動作的區域，而線路區CA中則配置有訊號 傳輸相關線路。一般來說，觸控面板2〇〇的動作區八八越 大則可使電子裝置具有更大的螢幕設計及更良好的操作便 利性。 為了凸顯線路區CA的設計’圖6將連接電極232、 導線250、導電接墊244以及電路板240直接繪示出來。 線路區CA的設計例如與上述之線路設計方式相同。也就 13 201011614 ；207-0813 2S557twf.doc/n 是祝，利用導線25〇連接於連接電極攻與導電接塾施 之間可以為觸控面板2GG提供平整的外表面。由圖6可知， 本實施例的線路區CA所佔面積僅約—挾長矩形區域，因 而動作區AA所佔面積可以適度的增加。如此—來在相 設=裝置中’應用觸控面板200的裝置可具有較 大的顯不螢幕，而更符合市場需求。 =示上所述，本發明藉由承载基材之凹槽以及第一SUMMARY OF THE INVENTION The present invention provides a touch panel to solve the conventional design of a signal transmission line. The invention has a touch panel, including a carrier substrate, a board, and The spacer layer, the second electrode substrate, the circuit board, and the plurality of ¥ lines. Chengxian material has a groove, an upper surface and a plurality of first holes, wherein the upper surface and the groove are located on opposite sides and the first through hole is connected to ^201011614 ^07-0813 28557twf.d〇c/n Surface and groove. The first electrode substrate is disposed on the surface of the carrier substrate. The electrode substrate has a plurality of second through holes to expose the first through hole ί: the second layer is disposed on the Γ electrode substrate, and the spacer layer has the second ray. The second hole exposes the area where the second through hole is located. The electric + substrate is disposed on the spacer layer and has a plurality of connection electrodes. The pole is exposed by the third through hole. The circuit board is disposed on the recess of the carrier substrate. The through hole has a plurality of fourth through holes and a plurality of conductive interfaces. The area where the first through hole is located. The wires are connected to each other and connected to the U-through hole, the third through hole and the fourth through hole and electrically connected between the connection electrode and the conductive pad. In the embodiment of the present invention, the touch panel further includes a protective layer disposed on the first through hole, the second through hole, the third through hole, and the fourth through hole:: Γ ί . The aperture of the third through hole is, for example, larger than the apertures of the first through hole and the second through hole, so that a part of the protective layer located in the second through hole and the third through hole of the first through hole has a τ shape , :: layer can be flat groove. Specifically, the material of the protective layer is, for example, an insulating paste, which includes an ultraviolet curable adhesive. For multiple (four), the upper connection and the conductive pad are electrically connected to the connection electrode. In this way, with at least one conductive paste 'which is located at the first electrode substrate to the connection electrode: a1 ' and the conductive adhesive electrically connects the signal transmission electrode 201011614 wr 7/^-0207-0813 28557twf.doc/n in the present invention In one embodiment, the touch panel further includes an adhesive, wherein the circuit board is adhered to the recess of the carrier substrate by an adhesive. In an embodiment of the invention, the circuit board is substantially a Flexible Printed Circuit (FPC). In an embodiment of the invention, the material of the wire comprises silver, inscription, copper or a combination thereof. The touch panel of the present invention utilizes a ❹ design to form a recess in the carrier substrate such that wiring such as circuit boards and wires are buried in the recess and the through hole of the connecting recess. Therefore, the touch panel of the present invention can have a flat outer surface for attachment to other devices. In addition, in the touch panel of the present invention, the connection electrodes and the conductive pads which are arranged in the upper and lower staggered manners can be connected in a small range by using the connection of the wires to improve the arrangement area of the action area of the touch panel. The above and other objects, features and advantages of the present invention will become more <RTIgt; [Embodiment] FIG. 2 is a partial perspective view of a touch panel according to an embodiment of the present invention, and FIG. 3 is a partial cross-sectional view of the touch panel taken along the X direction of FIG. Referring to FIG. 2 and FIG. 3 , the touch panel 200 includes a carrier substrate 210A, a first electrode substrate 21B, a spacer layer 220, a second electrode substrate 230, a circuit board 240, and a plurality of wires 250. . The carrier substrate 210A has a recess 212, an upper surface 214 and a plurality of first through holes 201011614 ------207-0813 28557twf.doc/n Ο Α 216 Α 'where the upper surface 214 is opposite to the recess 212 The first through holes 216 are connected to the upper surface 214 and the groove 212 on both sides. The first electrode substrate 2 is on the upper surface 214 of the carrier substrate, and the first electrode substrate 210 has a plurality of second through holes 216 to expose the first through hole 216. The second electrode substrate 23A has a plurality of connection electrodes 232. The spacer layer 220 is disposed between the first electrode substrate 210Β and the second electrode substrate 23〇, and has a plurality of third through holes 222, wherein the third through holes 222 respectively expose the area of the second through holes 216Β, and are exposed at the same time The connection electrode 232 on the second electrode substrate 230 is taken out. The circuit board 24 is disposed on the recess 212 of the carrier substrate 21, and the circuit board 240 has a plurality of fourth through holes and a plurality of conductive pads 244, and the ten conductive pads 244 are connected to the connection electrodes 232. Staggered up and down configuration. The fourth through hole 242 exposes the first through hole 216 in the region, and the conductive pad 244 is disposed on the circuit board 24A. The wire 25 is electrically connected between the connection electrode 232 and the conductive pad 244. In this embodiment, the carrier substrate 210 has a recess 212, and the first through hole 216, the second through hole 216B, the third through hole 222, and the fourth through hole 242 are coherent and collectively expose the connecting electrode 232. As a result, the wires 250 located between the first via hole 216 , the second through hole 216 , the third through hole 222 , and the fourth through hole 242 and electrically connected between the connection electrode 232 and the conductive pad 244 do not It protrudes beyond the groove 212. At the same time, the circuit board 240 is, for example, a flexible circuit board which is also embedded in the recess 212. In practice, the touch panel 200 further includes an adhesive 26, wherein the circuit board 240 is adhered to the carrier substrate 2 by using an adhesive 260. In the present embodiment, the recess 212 is designed to embed the circuit board 24 and the 201011614 w 1 7, w 〜 207 813 28 557 twf. doc / n wire 250 therein. Therefore, except for a portion of the circuit board 24 that extends from one side of the touch panel 200, the outer surface of the touch panel 2 has no exposed wires or protruding components. When the touch panel 200 is to be attached to other devices such as a display panel, the flat outer surface helps to improve the adhesion yield of the two devices. In order to protect the wires 250, the touch panel 200 further includes a protective layer 270 disposed on the first through hole 216A, the second through hole 216B, the second through hole 222, the fourth through hole 242, and the groove. 212, and wrapped with wire 250. In the present embodiment, the material of the protective layer 27 is, for example, an insulating colloid such as an ultraviolet curing adhesive or the like. In addition, in order to make the outer surface of the touch panel 200 more flat, the protective layer 27 is substantially filled with the groove 212 and cut away from the side of the carrier substrate 21A away from the upper surface 214. As such, the protective layer 270 can protect the wires 25 from the wires 25 to prevent the wires 25 from being provided by the rot- ing surface to facilitate the subsequent assembly process of the touch panel 200. In the present embodiment, the connection electrode 232 is, for example, a plurality of metal electrodes. For example, the connection electrode 232 may be a silver electrode disposed on the second electrode substrate 23A. In addition, in the embodiment, for example, an instrument for ultrasonically vibrating the metal needle is used to dispose the wire 25〇 in the first through hole 216, the second through hole 216B, the third through hole 222, and the fourth through hole. . At the same time, the material of the wire 250 includes silver, inscription, copper or other metal materials. In practice, the surface of the connection electrode 232 may be provided with a conductive paste such as silver paste to further improve the bonding property between the wire 250 and the connection electrode 232. Of course, the material of the above connecting electrode 232 and the manufacturing method of the wire 25A are only for the purpose of, for example, 201011614^07-0813 28557twf.doc/n, and the present invention is not limited thereto. Compared with the conventional connection manner of the metal pins, the connection between the connection electrode 232 and the conductive pads 244 by using the wires 250 in this embodiment can not only maintain the electrical connection relationship between the connection electrodes 232 and the conductive pads 244, but also does not cause The second electrode substrate 230 is deformed by being pressed. Further, in order to enhance the inlaying ability of the protective layer 27, in this embodiment, the aperture of the third through hole 222 is larger than the aperture of the first through hole 216A and the second through hole 216b, so that the first through hole 216A is located. The second through hole 216b and the protective layer 270 in the second through hole 222 are substantially T-shaped. Therefore, once the circuit board 240 is pulled outward by an external force, the τ-shaped design can provide sufficient inlay strength to prevent the protective layer 27 from being detached outward and prevent the wire 250 from being broken or damaged. In other words, the design of the first through hole 216A, the second through hole 216B, the third through hole 222, and the fourth through hole 242 through the groove 212 can make the touch panel 200 have a flat outer surface. 'And further by providing the size of the through hole to provide a similar misplacement', the protective layer 270 has better reliability, and the quality of the touch panel 200 is improved. 4 and FIG. 5 are partial cross-sectional views of the touch panel taken along the Y direction of FIG. 2, wherein FIG. 4 is a diagram showing the electrical connection relationship between the second electrode substrate 230 and the circuit board 240. FIG. The electrical connection relationship between the first electrode substrate 210B and the circuit board 240 is shown. Referring first to Fig. 4, the first electrode substrate 210B and the second electrode substrate 230 are each composed of a flexible substrate plated with a conductive oxide layer (not shown). In the present embodiment, the recess 212 is, for example, located on the carrier substrate 210A, and the first electrode substrate 210B is disposed on the carrier substrate 210A. The carrier substrate 21A is made of, for example, a material having a relatively hard texture such as glass or polycarbonate. When the user presses the touch panel 2', the carrier substrate 210A can provide an appropriate bearing force to prevent the touch panel 200 from being deformed as a whole. A conductive oxide layer (not shown) in the second electrode substrate 230 is used to sense a signal generated by a user's touch action. In addition, the plurality of connection electrodes 232 of the second electrode substrate 230 are electrically connected to the φ conductive oxide layer (not shown) of the second electrode substrate 230. The sensing signal generated on the conductive oxide layer (not shown) of the second electrode substrate 230 in the partial touch panel 200 shown in FIG. 4 can be transmitted to the circuit board 240 through the connection electrode 232 and the wire 25 〇. . Then, referring to FIG. 5, in order for the touch panel 200 to correctly perform touch sensing, signals on the conductive oxide layer (not shown) of the first electrode substrate 21B must also be transmitted to the circuit board 240. Therefore, from the partial cross-sectional view of FIG. 5, the first electrode substrate 21B further has a plurality of signal transmission electrodes 218 (only one is shown as an example) for conducting the first electrode substrate 210B. An oxide layer (not shown) is electrically connected to the connection electrode 232. In actuality, in order to electrically connect the signal transmitting electrode 218 to the connecting electrode 232, the touch panel 200 may further include at least one conductive paste 28, which is located between the signal transmitting electrode 218 and the connecting electrode 232. Thus, the signal on the conductive oxide layer (not shown) of the first electrode substrate 210B can be transmitted to the circuit board 240 through the signal transmission electrode 218, the conductive paste 280, the connection electrode 232, and the wire 250. In general, the connecting electrode 232 of this embodiment has a part of electrical 12 201011614 ”~^207-0813 28557twf.doc/n connected to the first electrode substrate 210B′ and the other part is electrically connected to the second The electrode substrate 23G. The signal generated on any of the electrode substrates (2i〇b or 230) can be transmitted to the circuit board 240 through the connection electrode 232 and the wire 250 to complete the transmission of the touch control signal. Meanwhile, from the cross-sectional views of FIG. 4 and FIG. 5, the touch panel 2 can make the touch panel 200 have a flat outer surface, particularly the outer side of the bearing 210A, thereby contributing to In the present embodiment, the first electrode substrate 21A and the second electrode substrate 230 are plated with a conductive oxide layer, for example, when the touch panel 2 is attached to the second substrate. The flexible plastic substrate is formed. Since the touch panel 200 is often attached to the display panel to form a touch display device, the conductive oxide layer is preferably selected from transparent conductive materials and oxides to provide good performance. Light transmittance. For example, transparent conductivity The oxide is, for example, indium tin oxide, steel zinc oxide, etc. Figure 6 is a top view of the touch panel of Figure 2. Referring to Figure 6, the touch panel 200 has an action area AA and is located, for example. The area A of the area around the AA is mainly the area where the touch panel 200 can perform the touch control action, and the line area CA is configured with the signal transmission related line. Generally speaking, the touch area is generally The larger the action area of the panel 2〇〇, the larger the screen design and the better the operation convenience of the electronic device. In order to highlight the design of the line area CA, FIG. 6 will connect the electrode 232, the wire 250, and the conductive connection. The pad 244 and the circuit board 240 are directly drawn. The design of the line area CA is, for example, the same as the above-mentioned circuit design. Also 13 201011614; 207-0813 2S557twf.doc/n is a wish to connect the connecting electrode with a wire 25〇 The contact panel 2GG can provide a flat outer surface with the conductive bonding device. As can be seen from FIG. 6, the area occupied by the line area CA of the embodiment is only about a long rectangular area, and thus the area occupied by the action area AA can be Moderate increase. In this way, the device for applying the touch panel 200 in the phase setting device can have a larger display screen and is more in line with the market demand. According to the above description, the present invention uses the groove of the substrate and the first One
US”、第三貫孔與第四貫孔將多條導線連接第二 電極基板之連接電極與電路板之導電接墊，使第二 板與電路板之f⑽傳輸線路設計不需裸$ 面板外部。也就是說，本發社觸控面板具有平坦的^ 而有助於提升馳面板_於其他元件上時的製程良 =另外’呈上下交錯配置的連接電極以及導電接塾利 :之連結而可於小範圍内達成訊號之連接，以提高觸控 面板之動作區的配置面積。 二The US", the third through hole and the fourth through hole connect the plurality of wires to the connection electrode of the second electrode substrate and the conductive pad of the circuit board, so that the f(10) transmission line design of the second board and the circuit board does not need to be naked. That is to say, the touch panel of the hairdressing company has a flat surface, which helps to improve the process of the flashing panel on other components, and the other connection electrodes that are arranged in an up-and-down configuration and the conductive connection: The connection of the signal can be achieved in a small range to improve the configuration area of the action area of the touch panel.
p —雖然本㈣已啸佳實施·露如上，然其並非用以 κ疋本發明’任何鄉技術領域巾具有通常知識者，在不 ::士發明之精神和範圍内，當可作些許之更動與潤飾， Z本翻之保護範圍當減附之申請專祕圍所界定者 【圖式簡單說明】 圖1繪示為習知的一種觸控面板的剖面示意圖。 圖2繪示為本發明之一實施例的觸控面板之局部立體 14 201011614 207-0813 28557twfdoc/n 圖。 圖3為沿圖2之X方向所繪示之觸控面板的局部剖面 圖。 圖4與圖5為沿圖2之Y方向所繪示之觸控面板的局 部剖面圖。 圖6繪示為圖2的觸控面板之上視示意圖。 【主要元件符號說明】 ® 100、200 :觸控面板 110、210B :第一電極基板 112 :貫孔 120、230 :第二電極基板 130 :可撓性電路板 140 :金屬針腳 140a:圓板狀頭部 210A :承載基材 φ 212 :凹槽 214 :上表面 216A :第一貫孔 216B:第二貫孔 218 :訊號傳輸電極 220 :間隔層 222 :第三貫孔 232 :連接電極 15 201011614 .z07-0813 28557twf.doc/n 240 :電路板 242 :第四貫孔 244 :導電接墊 250 :導線 260 :黏著劑 270 :保護層 280 :導電膠 AA :動作區 CA :線路區p—Although this (4) has been implemented by Xiaojia, as shown above, it is not intended to be used in the invention. Anyone who has the usual knowledge of the technical field of the invention is not allowed to do something in the spirit and scope of the invention. Change and refinement, the scope of protection of Z is reduced as defined by the application of the special secret enclosure [Simplified illustration of the drawing] FIG. 1 is a schematic cross-sectional view of a conventional touch panel. 2 is a partial perspective view of a touch panel according to an embodiment of the present invention. 14 201011614 207-0813 28557twfdoc/n. 3 is a partial cross-sectional view of the touch panel taken along the X direction of FIG. 2. 4 and 5 are partial cross-sectional views of the touch panel taken along the Y direction of Fig. 2. FIG. 6 is a top view of the touch panel of FIG. 2 . [Main component symbol description] ® 100, 200 : Touch panel 110, 210B : First electrode substrate 112 : Through hole 120 , 230 : Second electrode substrate 130 : Flexible circuit board 140 : Metal pin 140 a : Disc shape Head 210A: carrier substrate φ 212: groove 214: upper surface 216A: first through hole 216B: second through hole 218: signal transmission electrode 220: spacer layer 222: third through hole 232: connection electrode 15 201011614 . Z07-0813 28557twf.doc/n 240: circuit board 242: fourth through hole 244: conductive pad 250: wire 260: adhesive 270: protective layer 280: conductive adhesive AA: action area CA: line area