M425333 五、新型說明： 【新型所屬之技術領域】 本創作係一種電容式觸控面板，尤指一種改良架橋絕 緣層形式以増加面板整體結構強度的電容式觸控面板。 【先前技術】 現有的投射電容式觸控面板係包含有二隔離交錯的感 應線路’各感應線路係由複數感應電極串接構成，當使用 者觸碰觸控面板時，使用者身上所帶的電荷將使感應電極 產生電荷的變化，令外接的控制器透過電荷變化能感知使 用者所觸控的位置。 請參閱圖11所示，該投射電容式觸控面板係於一基板 的-表面上包含有相互隔離交錯的第—軸向感應線路81 與第二軸向感應線路82’各第一軸向感應線路81包含複數 第一電極810與連接兩相鄰第一電極81〇的第一導線 811，各第二軸向感應線路82包含複數第二電極似與複 數分別位於兩相鄰第二電極咖間的架橋83;請參閱圖 12、13所示，係為圖11的局部放大圖，其中，該架橋83 包含有-絕緣層831、-架橋導線832與—保護層833，該 絕緣層831係覆設於第—導線川上，其㈣分別延伸至 相鄰的第二電極820’又該架橋導線832係形成在絕緣層 831的表面，其兩端分別與相鄰的第二電極820電連接， 該保護層833係覆設於絕緣層831與架橋導線咖上以 保護架橋導線832與絕緣層831避免其二 3 M425333 由於架橋導線832與絕緣層831、保護層833的透過 率不同，當架橋導線832是使用非透明的金屬導電線路時， 雖可減少線路電阻值，但因透過率不佳，為了避免形狀可視 問題（pattern ViSib丨e issue)，現有技術是令架橋83面積縮 小而使其成為島狀，以減少因設置架橋83所產生的形狀可 視的問題，請參閱圖14所示，當架橋83面積縮小時由於 絕緣層831為島狀，會使結構強度相對較弱，一旦受到重壓 或刮傷，易使絕緣層831上的架橋導線832剝離，就算在 架橋導線832的表面覆設島狀保護層833，由於架橋83的 面積有限，备受力時，整個架橋83仍然存在剝離的問題。 【新型内容】. 如前揭所述，現有的電容式觸控面板其架橋受形狀可 視的限制而須縮小面積，使其易受廢而剝離損壞；因此本創 作主要目的在提供一種提高結構強度的電容式觸控面板， 主要是透過？文良架橋的絕緣層形 < 以解決架橋肖受壓而剝 離知壤的問題。 為達成前述目的所採取的主要技術手段係令前述提高 結構強度的電容式觸控面板包含有： 一基板； 複數第-軸向感應線路，係形成在該基板的表面各 第-轴向感應線路包含有複數第一電極以及複數連接兩相 鄰第一電極的第一導線； 複數第二軸向感應線路，係形成在該基板的表面且絕緣 交錯於各第-軸向感應線路，其中各第二轴向感應線路包含 M425333 有複數第二電極以及複數連接兩相鄰第二電極的架橋，該架 橋包括一絕緣層、一位於絕緣層上且分別連接兩相鄰第二電 極的架橋導線及一覆設架橋導線的保護層，該絕緣層進一步 ”有個以上延伸部，該延伸部係與相鄰架橋的絕緣層連 接； 利用別辻_元件紅成的提鬲結構強度的電容式觸控面 板，由於該絕緣層係令其延伸部與相鄰的絕緣層連接，藉由 絕緣層間的相互連結可增力0其結構強度，》咸少絕緣層與架橋 導線因受力而剝離損壞的問題；又本創作在不改變現有製程 的條件下，增加絕緣層的面積，令其可增加結構強度又不 致增加製作成本。 本創作次一目的係提供一種可增加互電容值的電容式 觸控面板，由於電容式觸控面板在相鄰的第一電極與第二電 極之間分別形成有電極間隙，並以各電極間隙中的空氣作為 介質以構成電容；當前述絕緣層的延伸部是形成於電極間隙 内而平行於相鄰的第一、第二電極時，該延伸部可視為一電 容，加上該延伸部與兩側相鄰第_、第二電極間分別形成的 一電容，其總合大於原有二電極之間所形成的電容而可提 高各相鄰第一電極與第二電極之間的互電容值，進而增加觸M425333 V. New Description: [New Technology Field] This is a capacitive touch panel, especially a capacitive touch panel with improved bridging insulation layer form to increase the overall structural strength of the panel. [Prior Art] The conventional projected capacitive touch panel includes two isolated and interleaved sensing lines. Each sensing circuit is formed by a plurality of sensing electrodes connected in series, and is worn by the user when the user touches the touch panel. The charge will cause a change in the charge of the sensing electrode, allowing the external controller to sense the position touched by the user through the change in charge. Referring to FIG. 11 , the projected capacitive touch panel comprises a first axial sensing of the first axial sensing line 81 and the second axial sensing line 82 ′ on the surface of the substrate. The line 81 includes a plurality of first electrodes 810 and a first wire 811 connecting two adjacent first electrodes 81A. Each of the second axial sensing lines 82 includes a plurality of second electrodes, and the plurality of adjacent electrodes are located between two adjacent second electrodes. Referring to FIGS. 12 and 13 , which is a partial enlarged view of FIG. 11 , the bridge 83 includes an insulating layer 831 , a bridging conductor 832 and a protective layer 833 , and the insulating layer 831 is covered. It is disposed on the first-conductor tube, and (4) respectively extends to the adjacent second electrode 820'. The bridge wire 832 is formed on the surface of the insulating layer 831, and the two ends thereof are electrically connected to the adjacent second electrode 820, respectively. The protective layer 833 is coated on the insulating layer 831 and the bridge wire to protect the bridge wire 832 and the insulating layer 831 from the second layer. 3 M425333. The bridge wire 832 is different from the insulating layer 831 and the protective layer 833. Is using non-transparent metal In the case of an electric circuit, although the line resistance value can be reduced, the transmittance is poor, and in order to avoid the shape ViSib丨e issue, the prior art is to reduce the area of the bridge 83 to become an island shape, thereby reducing the setting. For the problem of the shape of the bridge 83, please refer to FIG. 14. When the area of the bridge 83 is reduced, the insulating layer 831 is island-shaped, which makes the structural strength relatively weak. Once it is subjected to heavy pressure or scratch, it is easy to insulate. The bridge wire 832 on the layer 831 is peeled off, and even if the island-shaped protective layer 833 is placed on the surface of the bridge wire 832, since the area of the bridge 83 is limited and the force is applied, the entire bridge 83 still has a problem of peeling. [New content] As mentioned above, the existing capacitive touch panel has a bridge that is limited by the shape and needs to be reduced in area, making it susceptible to waste and peeling damage; therefore, the main purpose of the present invention is to provide an increase in structural strength. Capacitive touch panels, mainly through? Insulation layer shape of Wenliang Bridge [lt.] To solve the problem of peeling off the soil from the bridge. The main technical means for achieving the foregoing objectives is that the capacitive touch panel for improving the structural strength includes: a substrate; a plurality of first-axis sensing lines formed on the surface of the substrate and each of the first-axis sensing lines a first wire including a plurality of first electrodes and a plurality of adjacent first electrodes; a plurality of second axial sensing lines formed on a surface of the substrate and insulated in a staggered manner on each of the first-axis sensing lines, wherein each The two-axis sensing circuit comprises a M425333 having a plurality of second electrodes and a plurality of bridges connecting the two adjacent second electrodes, the bridge comprising an insulating layer, a bridge wire on the insulating layer and respectively connecting two adjacent second electrodes, and a bridge wire Covering the protective layer of the bridge wire, the insulating layer further has more than one extension portion, and the extension portion is connected with the insulating layer of the adjacent bridge; the capacitive touch panel with the strength of the lifting structure of the red component Since the insulating layer is connected to the adjacent insulating layer, the mutual strength between the insulating layers can increase the structural strength of the insulating layer. And the problem that the bridging wire is peeled and damaged due to the force; and the creation increases the area of the insulating layer without changing the existing process, so that it can increase the structural strength without increasing the manufacturing cost. A capacitive touch panel capable of increasing mutual capacitance values is formed by forming an electrode gap between adjacent first electrodes and second electrodes of the capacitive touch panel, and using air in each electrode gap as a medium to form a capacitor When the extension of the insulating layer is formed in the electrode gap and parallel to the adjacent first and second electrodes, the extension may be regarded as a capacitor, and the extension is adjacent to the two sides. A capacitor formed between the two electrodes, the sum of which is greater than the capacitance formed between the original two electrodes, can increase the mutual capacitance between each adjacent first electrode and the second electrode, thereby increasing the contact
控面板的感應靈敏度D 【實施方式】 關於本創作的第一較佳實施例，請參閱圖1所示，包 含有一基板10,以及形成在該基板10表面的複數第一轴向 感應線路20與複數第二軸向感應線路3〇,各第一軸向感應 5 M425333 線路20係絕緣交錯於各第二軸向感應線路3〇，其中該第一 軸向感應線路20包含有複數第一電極21以及複數連接兩相 鄰H：極的第—導線211 •，該第二軸向感應線路3〇包含 有複數第二電極31以及覆設於兩相鄰第二電⑮31之間的架 橋 40。 “ 請參閱圖2所示，該架橋4〇包含有一絕緣層41，該絕 緣層41係覆設於第一轴向感應線路2〇相鄰第一電極21間 的第導線211上，其兩端分別延伸至相鄰的第二電極 31 ,該絕緣層41具有一個以上延伸部4彳彳，該延伸部411 係與相鄰架橋40的絕緣層41連接，於本實施例中，該二相 鄰絕緣層41之間的延伸部411係為—長條狀，又該延伸部 411的寬度小於絕緣層41的宽度，由於本實施例中令延伸 邛411形成且檢跨在第二電極31上令延伸部々η縮小寬 度可減少形狀可視的問題。 請參閱圖3、4所示，係為圖！之第一轴向感應線路2〇 與第一轴向感應線路30交錯處的局部放大圖與剖視圖，該 架橋40進一步包含有一位於絕緣層41上且分別連接兩相 4第一電極31的架橋導線42及一覆設架橋導線42上的保 護層43’如圖所示，於本實施例中，各第一電極21係以垂 直的方向直線排列’並以第一導線211連接兩相鄰的第一 電極21，該第一電極21與第一導線211係一體的結構； 各第二電極31與架橋40係以水平的方向直線排列，該架 橋40係設置於第一導線211與兩相鄰第二電極31之間’ 該架橋導線42的兩端係分別連接至兩側的第二電極31形 成電連接；該保護層43係用以保護架橋導線42與絕緣摩 M425333 41避免其到傷。 由於該絕緣層41係令其延伸部411與相鄰的絕緣層41 連接，可增加絕緣層41與第二電極31的接合面積’進而增 加結構強度並減少架橋40因受力而剝離損壞的問題。 關於本創作的第二較佳實施例，請參閱圖5所示，其 基本結構係與第一較佳實施例大致相同，該相鄰的第二電 極31之間覆設有一架橋4〇，不同的是該μ 44具有複數延伸部44ι，各延伸部441係形成於第一電極 21與第二電極31之間的電極間隙内，請參閱圖6所示，各 延伸部州形成於第—電極21與第二電極31之間的電極 間隙内’使絕緣層44與延伸部441形成X &，將多個絕緣 層44與延伸部441連結後會成為一菱形網狀’可增加第— 絕緣層44與基板10的接合面積，進而提高其結構強度又 絕緣層44的各延㈣441係為單層結構，可避免減^透過 率所造成形狀可視的問題；請參閱圖7、8所示係為圖$ 的局部放大圖與剖視圖，該架橋4〇進—步包含有_位於絕 緣層44上且分別連接兩相鄰第二電極31的架橋導線钧及 -覆設架橋導線42的保護層43’如圖所示，於本實施例中， 該第-電極21與第二電極31之間形成的電極間隙以空氣相 互隔離，由於該絕緣層44的延伸部441係位於電極間隙 而與相鄰絕緣層44的延伸部441連接，可增加絕緣層 延伸部441與基板1()的接合面積，而提高其結構強度，除 此以外，可進一步提高相鄰第一、第二電極21、3 : 電容值。 互 ‘：關於本創作互電容值的計算方式，請參閱圖9所示， M425333 主要係計算在兩相鄰第一電極21與第二電極 延伸部州的互電容值，其中CmutuaM為互電容值、ci = -電極21與絕緣層44之延伸部441間的電容值 緣層44之延伸部441的電容值、c 2… Μ ΛΔ ^ ^ , 々昂一冤極31與絕緣 層44之延伸部441間的電容值、Α為第一電極2 (Cl ' C2、c3)串聯後的總合： 1 電極31和絕緣層44之延伸部441相對應的側邊面積、： 是將第-、第二電極21、31之間的距離分成三等份令絕 緣層44之延伸部441的寬度等同為其中一等份的寬戶於 本實施：中，該第一、第二電極21、31之間的空氣“㈧「 叩）之”電係數心1 = 1、〜=1，該絕緣層44之延伸部的 介電係數,，3.5，而該互電容值(c_uaM)為前述各電容 +-L_+. 1The first preferred embodiment of the present invention, as shown in FIG. 1, includes a substrate 10, and a plurality of first axial sensing lines 20 formed on the surface of the substrate 10 and a plurality of second axial sensing lines 3, each of the first axial sensing 5 M425333 lines 20 is insulated and staggered with each of the second axial sensing lines 3, wherein the first axial sensing line 20 includes a plurality of first electrodes 21 And a plurality of first conductors 211 connected to two adjacent H: poles, the second axial induction line 3A includes a plurality of second electrodes 31 and a bridge 40 disposed between the two adjacent second electrodes 1531. As shown in FIG. 2, the bridge 4 includes an insulating layer 41 which is disposed on the first wire 211 between the adjacent first electrodes 21 of the first axial sensing circuit 2, and the two ends thereof And extending to the adjacent second electrode 31, the insulating layer 41 has one or more extensions 4, which are connected to the insulating layer 41 of the adjacent bridge 40. In this embodiment, the two adjacent The extension portion 411 between the insulating layers 41 is elongated, and the width of the extension portion 411 is smaller than the width of the insulating layer 41. Since the extension 邛411 is formed in the embodiment and the inspection is performed on the second electrode 31. Reducing the width of the extension 々η reduces the problem of shape visibility. Referring to Figures 3 and 4, a partial enlarged view of the first axial sensing line 2〇 interlaced with the first axial sensing line 30 is shown. In a cross-sectional view, the bridge 40 further includes a bridge wire 42 on the insulating layer 41 and respectively connecting the two phases 4 of the first electrode 31 and a protective layer 43' on the bridge wire 42 as shown in the embodiment. Each of the first electrodes 21 is linearly arranged in a vertical direction and is The wire 211 is connected to two adjacent first electrodes 21, and the first electrode 21 is integrated with the first wire 211; each of the second electrodes 31 and the bridge 40 are linearly arranged in a horizontal direction, and the bridge 40 is disposed in the first Between the two wires 211 and the two adjacent second electrodes 31, the two ends of the bridge wire 42 are respectively connected to the second electrodes 31 on both sides to form an electrical connection; the protective layer 43 is used to protect the bridge wires 42 and the insulation M425333 41 avoids the damage. Since the insulating layer 41 is connected to the adjacent insulating layer 41, the bonding area of the insulating layer 41 and the second electrode 31 can be increased to further increase the structural strength and reduce the bridge 40. The problem of peeling damage due to force. With regard to the second preferred embodiment of the present invention, referring to FIG. 5, the basic structure is substantially the same as that of the first preferred embodiment, between the adjacent second electrodes 31. A bridge 4 is disposed, except that the μ 44 has a plurality of extensions 44 ι , and the extensions 441 are formed in the electrode gap between the first electrode 21 and the second electrode 31, as shown in FIG. The extension state is formed on the first electrode 21 and In the electrode gap between the second electrodes 31, the insulating layer 44 and the extending portion 441 are formed as X & the plurality of insulating layers 44 are connected to the extending portion 441 to form a diamond-shaped mesh. The first insulating layer 44 can be added. The joint area with the substrate 10, and further the structural strength thereof, and the extensions 441 of the insulating layer 44 are single-layer structures, which can avoid the problem of shape visible due to reduced transmittance; see Figures 7 and 8 for illustration. A partial enlarged view and a cross-sectional view of the bridge, the bridge 4 includes a bridge conductor 位于 on the insulating layer 44 and respectively connecting two adjacent second electrodes 31, and a protective layer 43' covering the bridge conductor 42 As shown in the figure, in the embodiment, the electrode gap formed between the first electrode 21 and the second electrode 31 is isolated from each other by air, since the extending portion 441 of the insulating layer 44 is located in the electrode gap and adjacent to the insulating layer. The extending portion 441 of the 44 is connected to increase the bonding area of the insulating layer extending portion 441 and the substrate 1 (), thereby improving the structural strength thereof, and further increasing the adjacent first and second electrodes 21, 3: capacitance value . Mutual:: For the calculation of the mutual capacitance value of this creation, please refer to FIG. 9. M425333 mainly calculates the mutual capacitance values of the states of the two adjacent first electrodes 21 and the second electrode extensions, wherein CmutuaM is the mutual capacitance value. , ci = - the capacitance value of the extension portion 441 of the capacitance value edge layer 44 between the electrode 21 and the extension portion 441 of the insulating layer 44, c 2... Μ Λ Δ ^ ^ , the extension of the drain electrode 31 and the insulating layer 44 The capacitance value between 441 and Α is the sum of the first electrodes 2 (Cl ' C2, c3) connected in series: 1 the side area corresponding to the extension 441 of the electrode 31 and the insulating layer 44, which is the first and the The distance between the two electrodes 21, 31 is divided into three equal parts such that the width of the extension portion 441 of the insulating layer 44 is equivalent to one of the aliquots of the present embodiment: between the first and second electrodes 21, 31 The air "(eight) "叩"" electric coefficient core 1 = 1, ~ = 1, the dielectric constant of the extension of the insulating layer 44, 3.5, and the mutual capacitance value (c_uaM) is the aforementioned capacitance +-L_ +. 1
Cmutuall ~ Cl + C2 + C3 · + · s〇j ^〇j+s0j ^l1 + 3l + IJ=7^ ^ CmunCmutuall ~ Cl + C2 + C3 · + · s〇j ^〇j+s0j ^l1 + 3l + IJ=7^ ^ Cmun
A 16 由上述公式可知，當絕緣層44之延伸部441形成於兩 :鄰第-、第二電極21、31之間時，該第_、第二電極& 31的互電容值（CmutuaM)為点(^)。 請參閱圖1G所示，係為現有電容式觸控面板的兩相鄰 第一、第二電@ 21、31之間的互電容值計算方式，其中 °~為其互電容值、A為兩相鄰第-、第二電極21、31 相對應的側邊面積、3d是兩相鄰第一、二電極2131之 間的距離，其中該兩相鄰電極之間的距離(3d)係與前述本!j M425333 作的兩相鄰電極距離相同，使其具有相同的比較條件，其 中該空氣間隙（Air Gap)之介電係、數〜=1，而現有技術的互 電谷值（Cmutual2)為：A 16 is known from the above formula, when the extension portion 441 of the insulating layer 44 is formed between the two adjacent first and second electrodes 21, 31, the mutual capacitance value of the first and second electrodes & 31 (CmutuaM) For the point (^). Please refer to FIG. 1G, which is a mutual capacitance calculation method between two adjacent first and second electric @21, 31 of the conventional capacitive touch panel, wherein °~ is its mutual capacitance value, and A is two. The side area corresponding to the adjacent first and second electrodes 21, 31, 3d is the distance between two adjacent first and second electrodes 2131, wherein the distance between the two adjacent electrodes (3d) is the same as the foregoing The distance between the two adjacent electrodes made by this !j M425333 is the same, so that they have the same comparison condition, wherein the air gap (Air Gap) dielectric system, the number ~ =1, and the prior art mutual electricity valley (Cmutual2) for:
Cmutuall 3dCmutuall 3d
A 21-16( ~^~[s〇di 將本創作的互電容值（CmutuaM)减去現有技術的互電容 值（Cmutua,2)，即為本創作所增加的互電容值，如下所示： λ _ 7/ ^ Λ 1 / a \ ^ Λ ^ / .、 \utuallA 21-16( ~^~[s〇di subtracts the mutual capacitance value (CmutuaM) of this creation from the mutual capacitance value of the prior art (Cmutua, 2), which is the mutual capacitance value added for this creation, as shown below. : λ _ 7/ ^ Λ 1 / a \ ^ Λ ^ / ., \utuall
即可得知由多個絕緣層44之延伸部441連結所形 形的延伸部441，其單邊蔣辦^ 5「4 菱形的延伸部441其四邊將增加為幻也就是 丹早違將增加的互電容值，而整個 12 ,。引的互 電容值。 由刖述了知，由於令絕緣層41、之延伸部411、441 與相鄰的、緣層41、44連接’藉由連接多個絕緣層41、44 而可提高結構強度；又絕緣層44之延伸部441與第一、第 。，極21、31之電極間隙中空氣的介電係數（& )不同， 可提冋第一電極21與第二電極31之間的互電容值，進而增 加觸控面板的感應靈敏度。 【圖式簡單說明】 圖 係本創作第一較佳實施例之局部平面圖。 係本創作第一較佳實施例之絕緣層的局部平面 圖3 :係本創竹# 卞第一較佳實施例之架橋的局部放大平面 ^ ^係本創作第一較佳實施例之 圖5:係本創作笛私 ，剖面圖。 ^ 6. . ^作第二較佳實施例之局部平面圖。 圖 作第二較佳實施例之絕緣層的局部平面 圖 圖7:係本創作第二較佳實施例之架橋 的局部放大平面 圖 之兩相鄰電極之間的電 圖8係本創作第二較佳實施例之架橋的剖面 圖9:係本創作第二較佳實施例 容示意圖。 圖1〇:係現有電容式觸控面板之兩相鄰電極之間的電 容示意圖。 圖11 :係現有電容式觸控面板之示意圖。 圖12:係現有電容式觸控面板之局部放大平面圖。 圖13:係現有電容式觸控面板之架橋局部放大平面圖。 圖14:係現有電容式觸控面板之架橋剖面圖。 【主要元件符號說明】 1 〇基板 21第一電極 30第二轴而感虑線路 40架橋 42架橋導線 411、441延伸部 80基板 81 0第一電極 20第一軸向感應線路 211第一導線 31第二t極 41、44絕緣層 43 .保護層 81第一軸向感應線路 811第一導線 10 M425333 82第二轴向感應線路820 83架橋 831 832架橋導線 833 第二電極 絕緣層 保護層It can be known that the extension portion 441 of the plurality of insulating layers 44 is connected to the extended portion 441 of the shape, and the unilateral side of the extension portion 441 of the four diamonds is increased to the illusion, that is, the Dan early violation will increase. The value of the mutual capacitance, and the value of the mutual capacitance of the entire 12, as described above, because the insulating layer 41, the extensions 411, 441 are connected to the adjacent edge layers 41, 44 'by connecting more The insulating layers 41, 44 can improve the structural strength; and the extension portion 441 of the insulating layer 44 is different from the dielectric constant (&) of the air in the electrode gaps of the first and second electrodes 21, 31, and can be improved. The mutual capacitance between the electrode 21 and the second electrode 31 increases the sensing sensitivity of the touch panel. [Schematic description of the drawing] The drawing is a partial plan view of the first preferred embodiment of the present invention. A partial plan view of the insulating layer of the preferred embodiment: a partial enlargement plane of the bridge of the first preferred embodiment of the present invention. FIG. 5 is a first preferred embodiment of the present invention. Sectional view. ^ 6. . ^ is a partial plan view of the second preferred embodiment. FIG. 7 is a partial cross-sectional view of an insulating layer of a second preferred embodiment of the bridge of the second preferred embodiment of the present invention. Fig. 9 is a schematic view showing the second preferred embodiment of the present invention. Fig. 1 is a schematic diagram showing the capacitance between two adjacent electrodes of a conventional capacitive touch panel. Fig. 11 is a schematic view showing a conventional capacitive touch panel. Figure 12: A partially enlarged plan view of a conventional capacitive touch panel. Figure 13: A partially enlarged plan view of a bridge of a conventional capacitive touch panel. Figure 14: A cross-sectional view of a bridge of a conventional capacitive touch panel. Description] 1 〇 substrate 21 first electrode 30 second axis and care line 40 bridge 42 bridge wire 411, 441 extension 80 substrate 81 0 first electrode 20 first axial sensing line 211 first wire 31 second t pole 41, 44 insulating layer 43. Protective layer 81 first axial sensing line 811 first wire 10 M425333 82 second axial sensing line 820 83 bridging 831 832 bridging wire 833 second electrode insulating layer protective layer
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