1249708 九、發明說明： 【發明所屬之技術領域】 本發明係涉及-種類比電阻式觸控 種無偏壓之類比電阻式觸控面板。 尤八以及 【先前技術】 产最腦：普及’鍵盤及滑鼠已成為-般大眾接受卷 又间$貝δί1輸入設備，且隨著電子科技的進牛，斜掛前 備亦不斷開發新的產品，例如-種與顯示勞 幕、“的觸控面板（T_hPanel)即被開發出來。 /近，來’3C產品在追求短小、輕薄的前提下，手寫輸 二：統=成為資料輸入之主流。不同於傳統鍵盤和滑鼠 =入=明觸控面板可直接貼附於顯示器上作為輸入系 減少鍵盤和滑鼠所佔空間。觸控面板挾其人性化 輸入；1面特性’幾乎不需任何教導、學習，即可直接以 二控筆等依照畫面上的功能指示點選所需，應用範 圍=廣泛，如平板電腦、舰、手機、筆記型電腦及提 政機等。 目前，控面板技術主要分為光學式、超音波式、紅外 線式、電料及電阻式。依其觸控技術原理來看，光學式 觸控面板係透過光遮斷方式產生感應，—般應用於高階產 扣中’ ^其價格較高、解析度較低，因此普便性不高；而 超音f式觸控面㈣以音波❹i方式產生錢，其缺點在 於易又外界干擾，j_無法使用較硬性材質作為觸控媒介， 故易因水滴或油污^發生干擾等錯誤，因此只能應用於較 18058 5 1249708 大尺寸產品，如公共查詢機台等資訊裝置；而電容式觸控 面f則因防水、防刮，透光度較高，而可應用於各式終端 產品，然其缺點在於面板製程較為複雜，需要錢上多層薄 膜，因此成本較高，現階段無法應用於小尺寸產品上，曰而 I阻式私用$㈣貞測方式感應’其技術原理是利用氧化鋼 錫導電玻璃及導電塑膠薄膜（IT〇 pET Fiim)為主要原 材料’同時在上下塗佈透明電極間設有間隔點(D〇t Spacer) ’當手指、觸控筆或其他物體對上部電極施加壓 力，將使上下部電極導通並產生電位差，進一步計算施壓 物體的座“位置並顯示於顯示器，該種電阻式觸控面板由 於4貝格軚貝惠，故目前的觸控面板多為此類觸控面板。 電阻式觸控©板大致分為數位式觸控面板及類比式 觸控面板。數位電阻式觸控面板係在上部基板，形成多數 條橫向的導線膜’在下部基板，形成多數條縱向的導線膜， 將該上部基板與下部基板對向配置，藉此將形成橫向及縱 向的多數條導體膜交叉重疊以形成多個矩陣狀排列的導體 膜電極，因此觸及位置的檢出方式即依據導通的導體膜電 極之電流值或電壓值作為參考。 淮及種數位電阻式觸控面板，若需提高輸入位置解 析度則彳于增加導線膜數量，相對的，即需窄化多條導線膜 的線寬以及線間距，為此則需採用較精密曝光微細圖案形 成技術，因此為使觸控面板的製造達到價廉、高產能的需 求極為困難。 鑒於上述數位電阻式觸控面板的缺點，因此，即有類 18058 6 1249708 ^ ( Analog Resistive Touch Panel) ^ ::第1A圖係用以顯示習知類比電阻式觸控面板之組 示Μ圖下基板1 0與上基板1 1分別具有導電膜i 〇〇、 110和電性連接在導電膜1GG、11G之導電電極（12至15)， 斤示’經由隔離片16及間隔凸點16a將下基板 其f上基板11對向配置，用黏著劑Π將下基板10與上 土反u加以密封，按壓點p，僅在上基板u的導電電極 ㈣15間施加檢出電壓a，檢出X方向分壓輸出端子18 的輸出分壓’藉此能檢知點p位於χ方向的位置 =板10的導電電極12、13間施加檢出電壓b，以檢出在 二^分壓輸出端子19的輸出分壓，藉此以檢 Y方向的位置。 ％ M. it ^ ^ ^ 4, 觸抆面板，因施加檢出電壓，故 具有祕電力且增加產品成本的問題。此外，上下 需間隔凸點16a及隔離片1 磨損毀壞之問題。 作絕緣，故存在傳統間隔元件 又及=種類比電阻式觸控面板中，具有高度不同之 ::片/f隔凸點，致使產品厚度增加，無法滿足3C產 口口輕溥、短小之需求。 干之另再者二^圖係我國專利公告第4_號案所揭 __之内部架構示意圖°如圖所 :阻體有:下基板2〇及—上基板21，Υ方向 电阻體22及χ方向電阻體23 外側。γ方向電壓施加電極2 4及广線所不的輪入部 X方向電壓施加電極25 18058 7 1249708 分別梳狀形成多數條，γ 電塵施加電極25分別^方:^加電極24與X方向 直交又連接。向、Χ方向電阻體22」3垂 加電極叫交互接觸，形成帶狀，=方向電麼施 27與該X方甸電方向座標檢出電極 力句电壓轭加電極25並未交互 而且，該Y方向、x方6 ^ 接觸t成▼狀。 28a電性連接。一驅叙+枚〇λ、 、通電極28、 通雨朽分別與該電阻體H丘 通毛極28、28a電性連接。 /、 如第2B圖係用以顯示第2a 袓人絲w 士 a , 工卜I板（21，20 )蜃1249708 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to an analog type resistive touch panel of a type that is less bias-free than a resistive touch type. You Ba and [Prior Art] Producing the most brain: Popularization 'Keyboard and mouse have become the same as the Volkswagen accept volume and $贝δί1 input device, and with the advancement of electronic technology, the oblique prep is also constantly developing new Products, such as - kinds of display and display screens, "T-hPanel" was developed. / Near, to '3C products in the pursuit of short, thin, on the premise of handwriting, two: unified = become the mainstream of data input Different from the traditional keyboard and mouse = input = Ming touch panel can be directly attached to the display as an input system to reduce the space occupied by the keyboard and mouse. Touch panel 挟 its user-friendly input; 1 surface characteristics 'nearly need Any teaching and learning can be directly selected by the second control pen according to the function instructions on the screen. The application range is wide, such as tablet, ship, mobile phone, notebook computer and government office. Currently, the control panel The technology is mainly divided into optical, ultrasonic, infrared, electric and resistive. According to the principle of touch technology, the optical touch panel generates light through the light interception method, which is generally applied to high-order production buckles. ' ^The price is higher, the resolution is lower, so the general convenience is not high; and the super-f-type touch surface (four) generates money by means of sound wave ❹i, the disadvantage is that it is easy and external interference, j_ can not use harder material As a touch medium, it is easy to be disturbed by water droplets or oil stains. Therefore, it can only be applied to larger products such as 18058 5 1249708, such as public inquiry machines. The capacitive touch surface f is waterproof. It has anti-scratch and high transmittance, and can be applied to various end products. However, its disadvantage is that the panel process is complicated and requires multi-layer film, so the cost is high, and it cannot be applied to small-sized products at this stage. I resistive private use (4) speculation method induction 'the technical principle is to use oxidized steel tin conductive glass and conductive plastic film (IT〇pET Fiim) as the main raw material' at the same time between the upper and lower coated transparent electrodes with a spacing point (D 〇t Spacer) 'When a finger, stylus or other object applies pressure to the upper electrode, the upper and lower electrodes will be turned on and a potential difference will be generated to further calculate the position of the pressed object and display it on the display. This kind of resistive touch panel is based on 4 Berger, so the current touch panels are mostly such touch panels. The resistive touch panel is roughly divided into a digital touch panel and an analog touch panel. The digital resistive touch panel is formed on the upper substrate, and a plurality of lateral conductive film films are formed on the lower substrate to form a plurality of longitudinal wire films, and the upper substrate and the lower substrate are disposed opposite to each other, thereby forming lateral and longitudinal directions. Since a plurality of conductor films are overlapped to form a plurality of conductor film electrodes arranged in a matrix, the detection manner of the contact position is based on the current value or voltage value of the conductive film electrode that is turned on. Huai and a kind of digital resistive touch panel, if you need to increase the input position resolution, then increase the number of wire films. In contrast, you need to narrow the line width and line spacing of multiple wire films. For this, you need to use more precision. Since the fine pattern forming technique is exposed, it is extremely difficult to make the manufacture of the touch panel inexpensive and high in productivity. In view of the shortcomings of the above-mentioned digital resistive touch panel, there is a class 18058 6 1249708 ^ ( Analog Resistive Touch Panel) ^ :: FIG. 1A is used to display a conventional analog resistive touch panel. The substrate 10 and the upper substrate 1 1 respectively have a conductive film i 〇〇, 110 and conductive electrodes (12 to 15) electrically connected to the conductive films 1GG, 11G, which are shown to pass through the spacer 16 and the spacer bump 16a. The substrate 11 is disposed opposite to the upper substrate 11, and the lower substrate 10 and the upper earth are reversed by an adhesive ,, and the point p is pressed, and only the detection voltage a is applied between the conductive electrodes (four) 15 of the upper substrate u, and the X direction is detected. The output voltage division of the voltage dividing output terminal 18 can be detected by the position of the point p in the x direction = the detection voltage b is applied between the conductive electrodes 12 and 13 of the board 10 to detect the voltage output terminal 19 at the two terminals. The partial pressure is output to check the position in the Y direction. % M. it ^ ^ ^ 4, Touch panel, due to the application of the detection voltage, it has the problem of secret power and increased product cost. In addition, there is a problem that the upper and lower bumps 16a and the spacer 1 are worn and damaged. Insulation, so there are traditional spacer components and = type of resistive touch panel, the height is different:: sheet / f barrier bump, resulting in increased product thickness, can not meet the needs of 3C mouth and mouth, short and short . The other one is the internal structure of the __ disclosed in the Patent No. 4_ of the Chinese Patent Announcement. As shown in the figure: the resist body includes: the lower substrate 2〇 and the upper substrate 21, the Υ direction resistor 22 and The outer side of the directional resistor body 23. The γ-direction voltage application electrode 24 and the wheel-in portion X-direction voltage application electrode 25 18058 7 1249708 of the wide line are comb-shaped to form a plurality of strips, and the γ-electrode applying electrode 25 is respectively: ^the electrode 24 is orthogonal to the X direction. connection. The electrodes in the directional direction of the directional resistor 22"3 are said to be in contact with each other to form a strip shape, and the directional electric field 27 and the X diandian electric direction detecting electrode electrode yoke voltage yoke electrode 25 do not interact with each other. The Y direction and the x square 6 ^ contact t form a ▼ shape. 28a electrical connection. The first drive + the 〇 λ, the through electrode 28, and the rain pass are respectively electrically connected to the resistor H through the hair electrodes 28, 28a. /, as shown in Figure 2B to show the 2a 袓人丝士士, a gong I board (21,20)蜃
= 割的切面圖’經由間隔凸點3〇將下A 反2〇與上基板21對向配置，並透過黏著㈣將下基板土 20與上基板21加以密封。 復茶閱帛2A®，該驅動電路29分別於電阻體 =體23的一端施加直流電壓。當使用者按壓該上基板 上之點P時’該驅動電路29使電壓加於電阻體U上， 由於下基板20之Y方向電壓施加電極24與上基板。之 座標檢出電極27係電性連接導通，故當使用者按壓該上基^ 板21上之點P時’亦按壓至該下基板2〇的點p，，而使； 流由該電阻體22的點P1流過點p，，使該電流流過γ方向 電壓施加電極24的點P，並流至該乂方向座標檢出電極η 的點p ’且於X方向共通電極28a流出並傳至該驅動電路 29中。該驅動電路29檢出該電流值，求得由電阻體22的 電壓輸入端到點P1的電阻值，進而檢知按壓上基板Μ點 P的Y座標。以此類推，藉由電阻體23的電壓輸出端到點 18058 8 1249708 的电阻值檢知按壓上基板21點P的χ座標。 個問ίΓ種類比電阻式觸控面板中，上下基板間需設置多 I轉為絕緣，故存在傳統間隔元件磨損毀壞之問 數= 重類比電阻式觸控面板中，需在上下基板上形成 Q壓施加電極及多數❹標檢出電極，因此，增加 觸&面板製程的複雜度，且提高生產成本。 因此’如何提供一種無需間隔元件及檢出電壓之類比 控面板’俾可避免f知技術之缺失實以成為目前 菓界亟待解決之難題。 【發明内容】 馨^上逃白之技術之缺點，本發明提供之主要目的在 :一種節省電力資源的無偏壓之類比電阻式觸控面板。 本舍明之另一目的在於提供一種製造簡單及成本低 廉之無偏壓之類比電阻式觸控面板。 雷阻H上述及其他㈣，本發明提供—種無偏壓之類比 電P式觸控面板，其包括—由駐極體材料组成之芯声一 係設置於該芯層之第一表面之第一導電薄膜層，且：第一 導電缚膜層之-表面各邊係分別設置—電極及—電性連 於該金屬電極的傳輸、線；一言史置於與該芯層之第一表面 對之第二表2之第二導電薄膜層；—設置於該第一導電: 膜層表面之第-保護層’其係設置於該第一導電薄膜二之 用以設置該金屬電極的表面；一設置於該第二導電薄ς層 表面之第二保護層’該第二導電薄膜層之表面係相對於： 該芯層之第二表面；以及一與該第一導電薄膜層之傳輸線 9 18058 1249708 電性連接之控制器，其中，當該觸控面板受壓時，該觸控 面板之受壓壓力到達該芯層時’使該受壓壓力位於該芯； 之駐極體材料之間產生相對應之電位差，且該電位差與各 個位於該第一導電薄膜層之金屬電極因距離不同而具有不 同之阻阬，使各電極依據該電位差及阻抗產生對應之電流 信號，並透過與其電性連接之傳輸線將電流信號傳送至該 控制裔上’以計算受壓位置。 該芯層係由具奈微米孔洞之氟系聚合物所組成，其係 透過高壓電暈充電方式或極化法進行充電而形成具有壓電修 特性之駐極體材料。當觸及該無偏壓之類比電阻式觸控面 板時’該芯層之駐極體材料受壓產生形變，使芯層之奈微 米孔洞之駐極體材料產生壓電效應，利用壓電效應產生之 電壓配合不同施力點對應位於該第一導電薄膜之電極所對 應的不同距離而產生不同的阻抗並轉變成相對應的電流訊 號，透過傳輸線將此電流訊號傳至控制器中，以藉由該控 制器計算施力點的位置座標。 相較於先前技術，本發明之無偏壓之類比電阻式觸控 面板，無需施加檢出電壓之驅動電路，因而使該無偏壓之 類比電阻式觸控面板構造簡單，更適合應用攜帶式電子裝 置上，且可節省電力。 又’本發明之無偏壓之類比電阻式觸控面板之結構中 無舄間隔點’因而可避免習知技術中間隔點磨損毀壞之問 題’且可提高產品可靠度及耐用度。相較於先前技術，本 發明之無偏壓之類比電阻式觸控面板亦具有製程簡單，成 18058 10 1249708 本低廉等優點。 【實施方式】 以下藉由特定的具體實施例說明本發明之實施方 式，熟悉此技藝之人士可由本說明書所揭示之内容輕易地 瞭解本％明之其他優點及功效。本發明亦可藉由其他不同 的具體實施例加以施行或應用’本說明書中的各項細節亦 可基於不同的觀點與應用，在不悖離本發明 各種修飾與變更。 ^卜進仃 請參閱第3圖，其係為本發明之無偏壓之類比電阻式 觸控面板之剖面結構示意圖。如圖所示，該無偏麼之電阻 式觸控面板係包括—由駐極體材料（Ele价叫形 成之芯層32’係具有一第—表面32〇(例如芯層之上表 面）及與該第一表面320相對之第二表面321 (例如芯層 之下表面），一透明導電薄臈層33，係設置於該芯層之 弟一表面320 ; 一透明導電薄膜層34,係設置於該怎層32 之弟二表面321;四條高導電金屬電極（33〇a、330b、33〇c、 “）及四么卞；線331 ’係利用網印方式印製於該透明導 電薄膜層33四邊邊緣處（該些金屬電極33〇a、33〇b、330c、 3=d及導線331如後述之第4圖所示）。其中，該透明導 电薄膜層33、34可替換成具有透光性之導電薄膜層，且該 駐極體材料形成之芯層32係可由具有透光性之駐極體材 料所組成。該芯層32、導命祛w p 缚膜層33、34構成一具有壓 電效應之自發性壓電結構35。該無㈣之類比電阻式觸控 面板復包括-下部透光保護層36作為底材以接置該壓電 18058 11 1249708 結構35，且該下部透光保護層36利用其表面塗佈的透光 黏著劑與該導電薄膜層34連接，用以承載位於其上方的結 構；一上部透光保護層37，用以保護位於其下方的結構， 其係利用旋轉塗佈法（Spin Coating)塗覆於該形成有金屬 電極330a、330b、330c、330d及導線331之導電薄膜層 33之表面。該芯層32係為例如奈微米孔洞 (Nano-Meso-Micro Porous)含敦高分子聚合物（Flourine Polymer )透過至少5KV(伏特）高電壓電暈充電法（Corona Charging )或極化法而使該芯層32能經一段時間還能保有 一定電荷於其内而不再衰減，即可形成駐極體材料。該芯 層32可為單層或多層，其係由硬質或軟質材料組成，例如 氣 4匕乙丙烯(Fluorinated Ethylene Propylene ? FEP)、聚 四 乙稀（Polytetrafluoroethylene，PTFE )、聚偏氟乙稀 (Polyvinylidene Fluoride，PVDF )或部分含氟材料與具有 帶永久高電荷特性等材料組成，該芯層32厚度可為1微米 (//m)至1000//m之間，且其内部含有經由奈微相製程 或超臨界發泡製程形成之奈微米孔洞，故芯層32即形成具 有奈微米孔洞結構之薄膜，因奈微米孔洞結構而增大該芯 層32之内部表面積，使得該芯層32内可保持有更大量之 電荷於其内。 該透明導點薄膜層33、34係通過低温物理蒸鍍法 (Physical Vapor Deposition ; PVD )或滅射蒸鍵法（Sputter Vapor Deposition ; SVD )分別形成於該芯層32之第一及 第二表面（320、321 )。該透明導電薄膜層33、34係由例 12 18058 !249708 如，化銦錫玻璃（Indium Tin 0xide Glass; it〇玻璃）之 2貝導體材料、或由例如氧化銦錫薄膜（IT〇 film)或導 T塑膠聚合物（PEDOT)之軟質透明高分子材料所組成，其 =度為〇.〇5//mS 100//m之間，阻值大於5歐姆/平方， %歐姆7平方至250歐姆/平方之間。其中，該透明 ^电薄膜層34之邊侧形成有—輸出端子（未圖示）以作 接地之用。 該金屬電極330a、330b、330c、330d及該導線331 =南導電性金屬材料例如金、銀或銅等組成以作為訊號 =電位差，其阻值小於丨歐姆/平方。且該金屬電極及 邊V線之阻值遠小於其所在導電薄膜層33之電阻值。 =下部透光保護層36及上部透光保護層37可為單層 二’甘係*硬質(例如玻璃)或軟f (例如塑膠)材料 、、、成，其厚度為l//m至5毫米（mm)之間。 =自發性壓電結構35中之芯層32具有經高壓電晕方 電所形成的多數規則排列且兩端分別帶有正 电何及負電荷之雙極性粒子，致使該芯層32之第― ΐ面=電薄膜層33、34因靜電感應而帶有極性相反之; 何。备觸及該無偏壓之類比電阻式觸控 〜層32内部電勢能平衡，該芯層％内 電薄膜層33透過外部線路流向該導電_層'4 ('亦^導 ==層34透過外部線路流向該導電薄膜層心 泠书4膜層33、34之間產生電位差。 18058 13 1249708 :參閱第4圖，其係為本發明之無㈣之類比 工板内部架構示意圖。如圖所示，該金屬带 ^ 所在方向定義為χ軸方向，該金屬 二30a 軸方向，故該 向定義為丫 〆金屬电極330a、330b用以偵測亨墓 33之γ軸方向是否被使用人觸壓，該金屬電：二： 用以偵測該導電薄膜層33之X軸方向是否被使用33〇d 壓），該些導線331分別透過外部線路38#一 電性連接’且該㈣H 39亦透過—外料路㈣該。 薄膜層34電性連接。 电 ，使用者觸及該無錢之類比電阻式觸控面板上之 二由於該自發㈣電結構乃具有壓 μ 34 ^ ^ 生电位差，其中該導電薄膜 =34邊側形成有—輸出端子，用以作為接地之用，同時群 該導電薄膜層33之點該導電薄膜層33四“ ::Γ金:極3施、3鳥、33〇C、33〇d分別具有不同的 a、 、Lc、Ld (即金屬電極330a、330b間距離為Λ =離La加上距㈣’金屬電極33〇c、33〇d間距離為距« U加上距離⑷，進而分別產生相對的阻抗Ra、Rb、 RC、M。並將該對應的導電膜層33之阻抗Ra、Rb、Rc、 Μ經由歐姆定律轉變成相對應之電流訊號 經該金屬電極遍、33Gb、33()e、3謝及該些導線33ι 分別將電流訊號^^〜輸出至該控制器仏該控 制器39計算該電流訊號Mb之比值及該電流訊號Ic、 Μ之比值即可確定點P在該導電薄膜層”的位置。 14 18058 1249708 更烊而言之，該無偏壓之類比電阻式 原=應Μ阻定律（R=pL/A)，其中，參數R為點= 至。亥導電薄膜層33之四邊高導電金屬電極（33〇a、33扑、 =、伽）之相對阻抗（Ra、Rb、Rc、Rd)，參心為 4電缚膜層33之電阻係數’參數L為觸及該觸控面板 於°亥導電薄膜層33產生之有效電阻線長度，亦即觸及點p 與各個高導電金屬電極（33〇a、33〇b、33〇c、33〇d)之距 恭a Lb、Lc、Ld，以及參數a為觸及該觸控面板於該 =二，膜層33所產生的有效電阻線截面積。假定該透明導· 屯薄膜層33之厚度為t, 0為A=tx w，其+ w是構成有 效電阻線之寬度，其係為定值，所以截面積A為定值。此 外，因觸壓點P係位於該無偏壓之類比電阻式觸控面板之 ‘電薄膜層33上，故點p與各高導電金屬電極（M〇a、 33〇b、33〇c、330d)之間均為相同之導電材質所以電 阻係數p亦相同。如此’觸及點p對各個高導電金屬電極 ( 330a、330b、330c、330d)之相對阻抗 R(即阻抗 Ra、 灿、以，）與有效電阻線長度1^(即距離1^、1^、1^、·= cut cut surface view </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> The tea is read 2A®, and the drive circuit 29 applies a DC voltage to one end of the resistor body = body 23, respectively. When the user presses the point P on the upper substrate, the drive circuit 29 applies a voltage to the resistor U, and the voltage is applied to the upper substrate by the Y-direction electrode 24 and the upper substrate. The coordinate detecting electrode 27 is electrically connected to be electrically connected. Therefore, when the user presses the point P on the upper substrate 21, the button p is also pressed to the point p of the lower substrate 2, and the flow is made by the resistor. A point P1 of 22 flows through the point p, and the current flows through the point P of the γ-direction voltage applying electrode 24, and flows to the point p' of the 乂-direction coordinate detecting electrode η and flows out and propagates in the X-direction common electrode 28a. To the drive circuit 29. The drive circuit 29 detects the current value, determines the resistance value from the voltage input end of the resistor 22 to the point P1, and detects the Y coordinate of the upper substrate defect P. By analogy, the χ coordinate of the point P of the upper substrate 21 is detected by the resistance value of the voltage output terminal of the resistor 23 to the point 18058 8 1249708. In the case of a resistive touch panel, it is necessary to set a plurality of I to be insulated between the upper and lower substrates, so there is a problem of wear and tear of the conventional spacer elements. In the heavy analog resistive touch panel, Q is formed on the upper and lower substrates. The pressure applied electrode and the majority of the target detection electrodes increase the complexity of the touch & panel process and increase production costs. Therefore, how to provide a control panel that does not require a spacer component and a voltage to be detected can avoid the lack of knowledge, which is a problem that needs to be solved in the current world. SUMMARY OF THE INVENTION The main purpose of the present invention is to provide an unbiased analog resistive touch panel that saves power resources. Another object of the present invention is to provide an analog resistive touch panel that is simple to manufacture and low in cost and that is unbiased. The above-mentioned and the other four (4), the present invention provides an unbiased analog P-type touch panel, comprising: a core acoustic system composed of an electret material disposed on the first surface of the core layer a conductive film layer, and: the first surface of the first conductive bonding layer is provided with an electrode and a transmission and a line electrically connected to the metal electrode; and a history is placed on the first surface of the core layer The second conductive film layer of the second table 2; the first protective layer disposed on the surface of the film layer is disposed on the surface of the first conductive film 2 for arranging the metal electrode; a second protective layer disposed on the surface of the second conductive thin layer: the surface of the second conductive thin film layer is opposite to: a second surface of the core layer; and a transmission line with the first conductive thin film layer 9 18058 1249708 The controller of the electrical connection, wherein when the touch panel is pressed, when the pressure of the touch panel reaches the core layer, the pressure is generated at the core; and the electret material is generated between Corresponding to the potential difference, and the potential difference is located at the first The metal electrodes of the conductive film layer have different resistances due to different distances, so that the electrodes generate corresponding current signals according to the potential difference and the impedance, and transmit the current signals to the control body through the transmission line electrically connected thereto to calculate Pressure position. The core layer is composed of a fluorine-based polymer having a micron-hole, which is charged by a high-voltage corona charging method or a polarization method to form an electret material having a piezoelectric repair property. When the resistive touch panel of the unbiased type is touched, the electret material of the core layer is deformed by compression, so that the electret material of the nano-hole of the core layer generates a piezoelectric effect, and the piezoelectric effect is generated. The voltage is matched with different force-applying points corresponding to different distances corresponding to the electrodes of the first conductive film to generate different impedances and converted into corresponding current signals, and the current signals are transmitted to the controller through the transmission line, by The controller calculates the position coordinates of the point of application. Compared with the prior art, the unbiased analog resistive touch panel of the present invention does not need to apply a driving circuit for detecting a voltage, thereby making the unbiased analog resistive touch panel simple in structure and more suitable for portable applications. On the electronic device, and can save power. Further, the invention has no flawless spacing point in the structure of the unbiased analog resistive touch panel, thereby avoiding the problem of damage of the spacer wear in the prior art and improving product reliability and durability. Compared with the prior art, the unbiased analog resistive touch panel of the present invention has the advantages of simple process and low cost of 18058 10 1249708. [Embodiment] The embodiments of the present invention will be described by way of specific examples, and those skilled in the art can readily understand other advantages and functions of the present invention. The present invention may be embodied or applied in various other specific embodiments. The details of the present invention can be varied and varied from the various aspects and applications without departing from the invention. ^卜进仃 Please refer to Fig. 3, which is a schematic cross-sectional view of the unbiased analog resistive touch panel of the present invention. As shown, the unbiased resistive touch panel includes - an electret material (the core layer 32' formed by Ele has a first surface 32 〇 (eg, the upper surface of the core layer) and a second surface 321 opposite to the first surface 320 (for example, a lower surface of the core layer), a transparent conductive thin layer 33 is disposed on a surface 320 of the core layer; a transparent conductive film layer 34 is provided The second surface 321 of the layer 32; four highly conductive metal electrodes (33〇a, 330b, 33〇c, “) and four 卞; the line 331′ is printed on the transparent conductive film layer by screen printing. 33 four-edge edges (the metal electrodes 33A, 33〇b, 330c, 3=d and the wires 331 are as shown in FIG. 4 to be described later). The transparent conductive film layers 33, 34 may be replaced with The light-transmissive conductive film layer, and the core layer 32 formed by the electret material may be composed of a light-transmitting electret material. The core layer 32, the guide pin wp binding film layers 33, 34 constitute a Spontaneous piezoelectric structure 35 with piezoelectric effect. The analog (4) analog resistive touch panel includes - lower light transmission protection 36 is used as a substrate to connect the piezoelectric 18058 11 1249708 structure 35, and the lower transparent protective layer 36 is connected to the conductive film layer 34 by a surface-coated light-transmitting adhesive for carrying the structure above it. An upper transparent protective layer 37 for protecting the underlying structure, which is applied to the conductive film formed with the metal electrodes 330a, 330b, 330c, 330d and the wires 331 by spin coating The surface of the layer 33. The core layer 32 is, for example, a Nano-Meso-Micro Porous Flourine Polymer that transmits at least 5 KV (volts) of high voltage corona charging (Corona Charging) or The polarisation method allows the core layer 32 to retain a certain amount of charge therein for a period of time without attenuating, thereby forming an electret material. The core layer 32 can be a single layer or multiple layers, which is made of a hard or Soft material composition, such as Fluorinated Ethylene Propylene ? FEP, Polytetrafluoroethylene (PTFE), Polyvinylidene Fluoride (PVDF) or some fluorine-containing materials and The material layer 32 has a thickness of 1 micrometer (//m) to 1000//m, and the inside thereof contains a nanometer hole formed through a nanophase process or a supercritical foaming process. Therefore, the core layer 32 forms a film having a nanon-hole structure, and the inner surface area of the core layer 32 is increased by the nano-hole structure, so that a larger amount of charge can be retained in the core layer 32. The transparent guiding film layers 33 and 34 are respectively formed on the first and second surfaces of the core layer 32 by a physical Vapor Deposition (PVD) or a Sputter Vapor Deposition (SVD). (320, 321). The transparent conductive film layers 33 and 34 are exemplified by Example 12 18058 ! 249708, such as indium tin oxide glass (Indium Tin 0xide glass; it 〇 glass), or by, for example, an indium tin oxide film (IT〇 film) or A soft transparent polymer material of PPET, which has a degree of 〇.〇5//mS 100//m, a resistance greater than 5 ohms/square, and an ohm of 7 square meters to 250 ohms. / squared. The side of the transparent electro-optical film layer 34 is formed with an output terminal (not shown) for grounding. The metal electrodes 330a, 330b, 330c, 330d and the wires 331 are composed of a south conductive metal material such as gold, silver or copper as a signal = potential difference, and the resistance is less than 丨 ohm/square. Moreover, the resistance of the metal electrode and the side V line is much smaller than the resistance value of the conductive film layer 33 in which it is located. The lower transparent protective layer 36 and the upper transparent protective layer 37 may be a single layer of two gans* hard (for example, glass) or soft f (for example, plastic) materials, and have a thickness of 1//m to 5 Between millimeters (mm). The core layer 32 in the spontaneous piezoelectric structure 35 has a plurality of regularly arranged bipolar particles formed by high voltage corona electricity and having positive and negative charges at both ends, so that the core layer 32 is ― ΐ面=Electro-film layers 33, 34 have opposite polarities due to electrostatic induction; The internal potential energy balance of the resistive touch layer 32 is balanced, and the inner layer of the core layer 33 flows through the external line to the conductive layer '4 ('also controls the layer 34 through the outside The line flows to the conductive film layer, and the potential difference is generated between the film layers 33, 34. 18058 13 1249708: Refer to FIG. 4, which is a schematic diagram of the internal structure of the board without the type of (4) of the present invention. The direction of the metal strip is defined as the direction of the x-axis, and the direction of the metal is 30a, so the direction is defined as the base metal electrodes 330a, 330b for detecting whether the γ-axis direction of the tomb 33 is touched by the user. The metal is: two: for detecting whether the X-axis direction of the conductive film layer 33 is pressed by 33〇d, and the wires 331 are electrically connected through the external line 38# respectively, and the (4) H 39 is also transmitted through the The outer material road (four) should be. The film layer 34 is electrically connected. The user touches the moneyless ratio of the resistive touch panel. The self-generated (four) electrical structure has a potential difference of 49 μm, wherein the conductive film=34 side has an output terminal. For the purpose of grounding, while the conductive film layer 33 is at the same point, the conductive film layer 33 "": Γ金: 极3施, 3 bird, 33〇C, 33〇d respectively have different a, Lc, Ld (ie, the distance between the metal electrodes 330a, 330b is Λ = from La plus distance (four) 'the distance between the metal electrodes 33〇c, 33〇d is the distance from the U plus the distance (4), and then the relative impedances Ra, Rb, respectively RC, M. The impedances Ra, Rb, Rc, and Μ of the corresponding conductive film layer 33 are converted into corresponding current signals via Ohm's law through the metal electrodes, 33Gb, 33()e, 3, and The wire 331 outputs a current signal ^^~ to the controller, and the controller 39 calculates the ratio of the current signal Mb and the ratio of the current signals Ic and 即可 to determine the position of the point P in the conductive film layer. 18058 1249708 In other words, the unbiased analog type of resistance = the law of resistance (R = pL / A), The parameter R is the point = 至. The relative impedance (Ra, Rb, Rc, Rd) of the four highly conductive metal electrodes (33〇a, 33 flutter, =, gamma) of the conductive thin film layer 33, the reference is 4 electric The resistivity 'parameter L of the adhesive layer 33 is the effective resistance line length generated by the touch panel in the conductive film layer 33, that is, the touch point p and each of the highly conductive metal electrodes (33〇a, 33〇b, 33〇c, 33〇d) from the Gong a Lb, Lc, Ld, and the parameter a is the effective resistance line cross-sectional area generated by the touch panel of the touch panel at the second layer. It is assumed that the transparent guide 屯The thickness of the film layer 33 is t, 0 is A = tx w, and + w is the width of the effective resistance line, which is a constant value, so the cross-sectional area A is a constant value. Further, since the contact point P is located The unbiased analog resistive touch panel is on the electro-film layer 33, so the point p and the highly conductive metal electrodes (M〇a, 33〇b, 33〇c, 330d) are the same conductive material. Therefore, the resistivity p is also the same. Thus, the relative impedance R of the point p to each of the highly conductive metal electrodes (330a, 330b, 330c, 330d) (ie, the impedance Ra, the can, ) And the effective resistance of the length 1 ^ (i.e., from 1 ^, 1 ^, 1 ^, ·
Ld)係成正比關係。 再者，該無偏壓之類比電阻式觸控面板之工作原理另 應用歐姆定律V=IR,其中，參數v為觸及瞬間所產生的 導電薄膜層33、34間之電位差，參數R為點p至各個高 導電金屬電極（ 330a、330b、330c、330d)所對應^阻1 (Ra、Rb、Rc、Rd) ’以及參數I為該些金屬電極（33〇a、 330b、33〇c、330d)透過導線331所輸出之電流訊號（1&、 18058 15 1249708Ld) is proportional to the relationship. Furthermore, the operating principle of the unbiased analog resistive touch panel is further applied by Ohm's law V=IR, wherein the parameter v is the potential difference between the conductive thin film layers 33 and 34 generated by the touch, and the parameter R is the point p. The resistances 1 (Ra, Rb, Rc, Rd)' corresponding to the respective highly conductive metal electrodes (330a, 330b, 330c, 330d) and the parameter I are the metal electrodes (33〇a, 330b, 33〇c, 330d) The current signal output through the wire 331 (1&, 18058 15 1249708)
Ib、IC、I(i)，由歐姆定律V=IR可知，輸出電流訊號（u、 lb Ic、Id)與點p至各個尚導電金屬電極、33〇b、 330c、330d之距離La、Lb、Lc、u成反比關係，該控制 器％依據該輸出電流訊號（Ia、Ib、Ic、Id)計算出電流 訊號Ia、Ib之比值（即Ia/Ib)，即可確定距離的比值La/Lb (電流訊號Ia、Ib之比值Ia/Ib與距離比值La/Lb之關係座 標如第5A圖所示），從而確定點卩的γ軸座標值為 y(y=La)。同時該控制器39計算出電流訊號ic、id之比值 (即Md )以確定距離比值Lc/Ld(電流訊號比值ic/id盥 距離比值WLd之關係座標如第5B圖所示），從而確定點 P之X軸座標值為x(x=Le)。因此，藉由該控制器％ 確定點P的位置。 本發明之無偏壓之類比電阻式觸控面板，在該觸控面 板上施加不同的觸及力藉由壓電效應會在該導電薄膜声 3厂3:34之間產生不同的電壓差’該觸控面板受力越大：電 =值越大’但因相同觸及點p至各邊高導電金屬電極 〇a 330b、330c、330d)所對應之阻抗 距離L不變），所以扁舶π科二 夂v u和對 纟相R而不同觸及作用力下，相對電 比值仍會相同。因此，不同觸及作用力大小對觸及位 置之鑑別不會產生影響，並 女 本發明之無偏壓之類比電 阻式觸控面板，亦可利用觸 电 斷是否為纽觸及。職』職生的電心大小來判 此外，本發明亦可進一 〜用不叼觸及施力大小琳姦 生之相對電壓特性，除了可馨 所產Ib, IC, I(i), according to Ohm's law V=IR, the output current signal (u, lb Ic, Id) and the point p to each of the conductive metal electrodes, 33〇b, 330c, 330d, the distance La, Lb , Lc, u are inversely proportional, the controller % calculates the ratio of the current signals Ia, Ib (ie Ia/Ib) according to the output current signal (Ia, Ib, Ic, Id), and can determine the ratio of the distance La / Lb (the relationship between the ratio Ia/Ib of the current signals Ia, Ib and the distance ratio La/Lb is shown in Fig. 5A), thereby determining the y-axis coordinate value of the point y (y = La). At the same time, the controller 39 calculates the ratio of the current signals ic and id (ie, Md) to determine the distance ratio Lc/Ld (the relationship between the current signal ratio ic/id and the distance ratio WLd is as shown in FIG. 5B), thereby determining the point. The X-axis coordinate value of P is x (x = Le). Therefore, the position of the point P is determined by the controller %. In the non-biased analog resistive touch panel of the present invention, different touch forces are applied to the touch panel, and a piezoelectric effect causes a different voltage difference between the conductive film sound 3 factories 3:34. The greater the force on the touch panel: the larger the electric value is, but the impedance distance L corresponding to the highly conductive metal electrodes 〇a 330b, 330c, and 330d on the sides is the same, so the flat π The two-dimensional vu and the opposite phase R have different relative electrical forces, and the relative electrical ratio will remain the same. Therefore, the different touch force does not affect the discrimination of the touch position, and the biasless analog resistive touch panel of the present invention can also utilize whether the touch is touched. In addition, the present invention can also be used in addition to the relative voltage characteristics of the force of the force, in addition to the production of
鍪別XY軸平面上之觸及點P 18058 16 1249708 位於x軸及γ轴的座標位置，亦可依據不同之觸及力產生‘ 相對的電流值大小以作為ζ軸上用以鑒別觸及塵力大小之· 參考。 相較於習知技術，本發明之無偏遷之類比電阻式觸控 面板與傳統電阻式觸控面板比較’本發明亦可利用觸及點 所產生之電位大小來判斷是否為有效觸及，且1所且備之 面板疊合結構間無需間隔點，故無傳統間隔點磨损毀壞之 問題，因而可靠度及耐用度較傳統電阻式觸控面板為佳，-=發明之無偏壓之類比電阻式觸控面板因無需間隔點及·. 偏壓設計，故可簡化製程並節省成本。另外，本 駐極體材料之壓電特性，無須偏壓設計，可節省驅動觸控 面板所需之電力，特別適用於便攜式產品。 上述實施例僅為例示性說明本發明之原理及其功 效，而非用於限制本發明。例如，上述之高導電金屬電極 330a、330b、330c、330d 月道 & ” w“ 及導線33 1的數量並非僅限定為 四，亦可依據該導電薄膜層33之形狀增減金屬電極遍、 33〇b、330c、330d及導線如的數量；再者，除以含氣高 分子聚合物形成該芯層32外，該芯層32亦可以例如含氣、 >臭、蛾等函族元素之高分子聚合物形成者，或者該芯層％ ^可以^帶永久高電荷特性之聚合物形成者，亦即端視 貫施形悲而定。任何孰習士 g 4士益 …白此項技蟄之人士均可在不違背本 發明之精神及範缚下’對上述實施例進行修改。因此本發 明之榷利保護範圍，應如後述之中請專利範圍所列。 【圖式簡單說明】 18058 17 1249708 第1A圖係為習知類比電阻式觸控面板之組合示意圖； 第1Β圖係為第1 a圖之習知類比電阻式觸控面士 構剖面示意圖； ^ 第2A圖係為我國專利公告第498266號案所揭示之類 比電阻式觸控面板内部結構示意圖； 第2B圖係為第2a圖之結構剖面示意圖； 第3圖係為本發明之無偏壓之類比電阻式觸控面板之 結構剖面示意圖； 第4圖係為本發明之無偏壓之類比電阻式觸控面板之馨 内部架構示意圖； 第5A圖係為本發明之觸控面板產生的電流訊號u、 lb之比值la/ib與La/Lb之關係座標圖；以及 第5B圖係為本發明之觸控面板產生的電流訊號Ic、Screening the touch point on the XY axis plane P 18058 16 1249708 Located at the coordinate position of the x-axis and the γ-axis, the relative current value can be generated according to different contact forces as the axis to identify the touch dust. · Reference. Compared with the prior art, the non-biased analog resistive touch panel of the present invention is compared with the conventional resistive touch panel. The present invention can also use the potential generated by the touch point to determine whether it is effectively touched, and There is no need for a space between the stacked layers of the panel, so there is no problem of wear and tear of the conventional spacers, so the reliability and durability are better than the conventional resistive touch panel, -= the invention of the unbiased analog resistor The touch panel simplifies the process and saves costs by eliminating the need for spacers and bias designs. In addition, the piezoelectric properties of the electret material do not require a bias design, which saves the power required to drive the touch panel, and is especially suitable for portable products. The above embodiments are merely illustrative of the principles and effects of the invention and are not intended to limit the invention. For example, the number of the high-conductivity metal electrodes 330a, 330b, 330c, and 330d described above and the number of the wires 33 1 is not limited to four, and the metal electrode may be increased or decreased according to the shape of the conductive film layer 33. 33〇b, 330c, 330d and the number of wires, for example; in addition to forming the core layer 32 by a gas-containing polymer, the core layer 32 may also contain, for example, a gas, a odor, a moth, etc. The formation of the high molecular polymer, or the core layer can be a polymerizer with a permanent high charge characteristic, that is, depending on the shape. Any of the above-mentioned embodiments may be modified by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as listed in the patent scope mentioned later. [Simple diagram description] 18058 17 1249708 The first diagram is a combination diagram of a conventional analog resistive touch panel; the first diagram is a schematic diagram of a conventional analog resistive touch panel structure of the first diagram; 2A is a schematic diagram of the internal structure of the analog resistive touch panel disclosed in the Patent Publication No. 498266; FIG. 2B is a schematic cross-sectional view of the structure of FIG. 2a; FIG. 3 is the unbiased of the present invention. FIG. 4 is a schematic diagram showing the internal structure of the analog-free resistive touch panel of the present invention; FIG. 5A is a current signal generated by the touch panel of the present invention; u, the relationship between the ratio of lb la/ib and La/Lb; and the 5B diagram is the current signal Ic generated by the touch panel of the present invention,
Id之比值lc/id與Lc/Ld之關係座標圖。 【主要元件符號說明】 10 Λ 20 下基板 U、21 上基板 ^ 1CK) ' 110 導體膜電極 12、13、14、15連接導體 16a、30 17、31 18、19 22、23 隔離片 間隔凸點 黏著劑 分壓輸出端子 電阻體 18 18058 1249708 24 > 25 電壓施加電極 26、27 座標檢出電極 28 ^ 28a 共通電極 29 驅動電路 32 芯層 320 第一表面 321 第二表面 33、34 透明導電薄膜層 330、330a、 330b、330c、330d 電金屬電極 331 導線 35 自發性壓電結構 36 下部透光保護層 37 上部透光保護層 P 點 L、La、Lb 、Lc、Ld 距离隹 R、Ra、Rb 、Rc、Rd 阻抗 I、la、lb、 Ic、Id 電流訊號 38 外部線路 39 控制器 A 截面積 a，b 檢出電壓 t 厚度 w 寬度 19 18058The relationship between the ratio of Id, lc/id, and Lc/Ld. [Main component symbol description] 10 Λ 20 lower substrate U, 21 upper substrate ^ 1CK) '110 conductor film electrodes 12, 13, 14, 15 connecting conductors 16a, 30 17, 31 18, 19 22, 23 spacer spacer bumps Adhesive partial pressure output terminal resistor 18 18058 1249708 24 > 25 voltage application electrode 26, 27 coordinate detection electrode 28 ^ 28a common electrode 29 drive circuit 32 core layer 320 first surface 321 second surface 33, 34 transparent conductive film Layers 330, 330a, 330b, 330c, 330d Electro-metal electrode 331 Conductor 35 Spontaneous piezoelectric structure 36 Lower light-transmissive protective layer 37 Upper transparent protective layer P Point L, La, Lb, Lc, Ld Distance 隹R, Ra, Rb, Rc, Rd Impedance I, la, lb, Ic, Id Current signal 38 External line 39 Controller A Cross-sectional area a, b Detection voltage t Thickness w Width 19 18058