TWI249134B - Touch panel structure - Google Patents
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- TWI249134B TWI249134B TW92120031A TW92120031A TWI249134B TW I249134 B TWI249134 B TW I249134B TW 92120031 A TW92120031 A TW 92120031A TW 92120031 A TW92120031 A TW 92120031A TW I249134 B TWI249134 B TW I249134B
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44 1-今和―命,咖.· w〆和似叫的 五、發明說明(1) 【發明所屬之技術領域】 本發明係有關一種觸 測線路之觸控面板架構。 【先前技術】 由於科技日益精進, 輸入裝置愈來愈多元化, 面板有機會成為另一必需 利用導電玻璃與導電薄膜 電路板之控制I c以觸控方 置。 觸控面板挾其人性化 教導、學習,即可直接以 能指示點選所需,應用範 修正 控面板架構,尤指一種具多條伯 帶動資訊、通訊、電子等產品之 嶄新的輸入裝置-人性化的觸控 品,觸控面板(Touch Panel)係 所構成之玻璃面板,藉由排線及 式顯示所需圖像於螢幕之輸入裝 的輸入介面特性,幾乎不需任何 手指或觸控筆等依照畫面上的功 圍非常廣泛。主要應用範圍包括 (1) 可攜式之通訊、消費性電子及資訊產品:如個人數 位助理(PDA)、掌上型電腦(Palm —Sized PC)、電子字典、 手寫輸入裝置、資訊家電(Information Appliance)、新 =代數位寬頻行動電話(含3G &GPRS手機等)、股市資訊顯 示器(如倚天傳訊王); (2) 金融/商業用途:如提款/售票系統、銷售系統、 遠端視訊會議、電話終端機系統; (3) 醫療衛生用途:如掛號系統、手術台監控、醫學 追蹤; (4) 工業用途:如工廠自動化控制系統、遠端/中央監
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92120031 控糸統、工作站於要/ (5) 公此資糸統、管理資訊系統(MIS); 政資訊查詢系統;J .機場導覽系統、文物介紹系統、地 (6) 教學/電玩用 電腦辅助教學等。用途:娛樂中心内之遊戲機台、幼兒之 _田、全引^工面板市場以工業用途佔最大比例,依次為導 、丰撒/售結帳點、醫療與電玩等用途。未來隨仰八、 :@等產品採用觸控面寺反,可攜式之通訊、消費性電 子產品用途將佔觸控面板重要地位。 立觸控面板依動作方式不同可分為:電阻式、電容式、 曰:气光導波式、荷重變化式· ··等,但其中又以電阻 式最被廣泛運用,依各廠家設計不同又可區分為四線、五 線、六線等不同架構。 其中’電阻式技術(Filffl On Glass)最為一般設計 應用:其技術原理是以透明導電玻璃(IT〇 Glass)及透明 =電薄膜(ITO Film)各依X,γ軸佈線,在上下部透明電極 設有隔層(dot spacer),以手指、筆或其他介質對上部電 極施加壓力,使上下部電極間接流通,產生電位差,上下 線路父錯處即形成一開關(Switch),按壓即產生導通(on )/截止(OFF )作用,導通(ON )/截止(0FF )信號再經 由排線傳給控制器處理,進一步計算施壓處的座標位置。 觸控螢幕根據配線方式又可分為四線式(4 Wire)、五 線式(5 Wire)和八線式(8 Wire)。四線式為最一般的配線 型式,其觸控原理即由上部及下部電極的各2條X軸γ軸所
!-η -^^92120031 修正
發明ΐ兒明 形成。其缺點為此觸控面板之外加電壓在上、 一 切換,易產生干擾;且版面上之電路一但。下一層間做 線性不良。 一 °貝’則會造成 (3) 五綠式為一下部電極由4條X軸Υ軸形成,而 立 由另一條配線控制,因此上部電極抗阻值較高,部電極 壞。其缺點為此觸控面板僅有一種驅動方式了而車又不易損 路也只有一條線路,一但此線路損毀便無法動作且偵硎線 八線式為最一般的配線型式,其觸控原理艮 下部電極的各4條X軸γ軸所形成。其缺點A、卩上部及 外加電壓在上、下二層間做切換,易產生為干此觸控面板之 之電路一但割損,則會造成線性不良。 ,且版面上 【發明内容】 爰是,本發明之主要目的在於解決上述 避免缺失存在,本發明係利用上下兩層使用相同^失, =壓線路之電阻膜作為觸控面板,π以以感 空間’不受單-驅動方式之約束,此外擁有多心式的 ,可以增加偵測線路的選擇性,可避免因Μ 一、1貝7則線路 無法使用之情況;以單一下層或上層基板5二$ 3壞損而 即可加強四線式與八線式觸控面板的使用方法。^之切換 如疋,為達上述之目的,本發明提出一 構’主要係將具有X軸與γ轴交又配置感應電壓=面板架 膜的上基板與下基板以面向貼合,而使該兩電:電阻 位置成為二次元座標值之可獲得檢知、之接觸 其特徵為在上基板及下基板四邊之中 ,控面板中, 中間位置分別拉出接腳
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A、B、C、D、E、F、G、Η ;當要偵測χ軸座標時,在下基 板的左右兩邊接腳Ε、G (或是上基板a、c ),外加5V(伏 特)與0V電壓,此時藉由上基板(下基板)作為偵测用, 掘取電阻膜之四條偵測線路的信號,此被擷取之信號 X軸訊號; 接著在下基板(上基板)的上下兩邊接腳F、h (或是 B、D )外加5V與0V電壓,此時藉由上述之上基板作為偵= 用’擷取電阻膜之四條偵測線路的信號,此被擷取之 即為Y轴訊號。 b 【實施方式】 兹有關本發明之詳細内容及技術說明,現配合圖式說 么晴參閱「第1圖」所示,係本發明之觸控面板架構示 意圖。如圖所示:一種觸控面板架構,主要係將一具有X 軸與Y軸交叉配置感應電壓線路之上電阻膜丨i 〇的上基板 1 0 0,與一具有X軸與Y軸交叉配置感應電壓線路之下電阻 膜21 0的下基板2〇〇以面向貼合,而使該上電阻膜丨丨〇與下 電阻膜2 1 0之接觸位置成為二次元座標值之可獲得檢知輸 出之觸控面板中,其特徵為在上基板1〇〇及下基板2〇〇四邊 之中間位置分別拉出接腳A、b、C、D、E、F、G、Η ; 如是’本發明係有8條外接控制的線,其接法如下所 述:當要偵測X軸座標時,在下基板2〇〇的左右兩邊接腳£ 、、G,、外加5V(伏特)與0V電壓,並藉由上述之上基板1〇〇作 為偵測,擷取上電阻膜11〇之χ軸與γ軸交叉配置之四條偵
第8頁 __ j號 92120031 、發明說明>(5) 測線路,^號,此被擷取之信號即為χ軸訊號; ”接^在下基板200的上下兩邊接腳F、Η外加5V與⑽電 壓,並精由上述之上基板1 00作為偵測,擷取上電阻膜丨J 〇 ^軸與Υ軸交叉配置之四條谓測線路的信號,此被擷取之 4吕號即為γ轴訊號。 其中,該上電阻膜110與下電阻膜210係為透明導電薄 膜。 同法,亦可將上基板1〇〇之接腳A、Β、C、D作為電壓 5 V、〇 V )之輸入,而下基板2 〇 〇作為偵測使用。 •綜合上所描述,本發明之接線應用樣態將有以下四種 11氣^方法1於下基板2〇()之接腳1?外加一電壓5¥,而接腳 ,且接腳G、£開路,此時上基板1〇〇之接腳Α、β < 號*皆思作士為偵測(Sensor),偵測之信號。偵測Y軸信 _ =日守’關閉電壓,並於接腳G外加一電壓5V,而接腳£ 為比〇V,且接腳F、H開路,此時上基板1〇〇之接腳a、b、c、 υ白作為偵測,偵測X軸之信號。 DAnv方法2 :於上基板1〇〇之接腳Β外加一電壓5V,而接腳 為^,且接腳A、C為開路,此時下基板2〇〇之接腳e、f、 為偵測(Sens〇r),偵測¥軸之信號。偵測γ軸信 為了畢時’關閉電Μ,並於接腳C外加一電壓5V,而接㈣ 為比V ’且接腳B、D開路,此時下基板2〇〇之接腳E艸、g、 白作為偵測,偵測X軸之信號。 方法3 :於上基板100之接腳B外加—電—V,而接腳
修
五、發明說明
D為〇\’且接腳A、C為開路,此時下基板2 0 0之接腳E、F、 匕^白1為偵測(Sensor ),偵測Y軸之信號。偵測Y軸信
號完畢時,關閉電壓,並於下基板2 0 0接腳G外加一電壓5V ,而接腳E為0V,且接腳F、H開路,此時上基板1〇〇之接腳 A、β、C、β皆作為偵測,偵測X軸之信號。 、方法4 ·於上基板1〇〇之接腳c外加一電壓5V,而接腳 Α為0V ’且接腳B、D為開路,此時下基板2 0 0之接腳Ε、F、 I、^皆作為偵測(Sensor),偵測X軸之信號。偵測x軸信
^完畢時,關閉電壓,並於下基板20 0接腳F外加一電壓5V
’而接腳Η為0V,且接腳E、G開路,此時上基板丨00之接腳 、β、C、D皆作為偵測,偵測γ軸之信號。 如疋,本發明利用上下兩層使用相同結構的感應電壓 、、、,之電阻膜作為觸控面板,可以增加驅動方式的空間, =欠單一驅動方式之約束,此外擁有多組偵測線路,可以 =加偵測線路的選擇性,可避免因單一線路壞損而無法使 用之情況。 . 准上述僅為本發明之較佳實施例而已,並非用來限定 2明實施之範圍。即凡依本發明申請專利範圍所做的均 變化與修飾,皆為本發明專利範圍所涵蓋。
第10頁 k 零3] 案號 92120031 曰 修正 圖式簡單說明 【圖式簡單說明】 第1圖,係本發明之觸控面板架構示意圖 【圖式之標號說明】 上基板 100 下基板 200
接腳 A、B、C、D、E、F、G、H
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Claims (1)
- 丄、悝啁控面板架構,主且 叉配置感應電壓線路之上電阻膜的上基板Λ射轴交 與Υ抽交又配置感應電壓線路之下電阻膜的了、—具有“ 貼合,而使上電阻膜與下電阻膜之接觸位基板以面向 標值之可獲得檢知輸出之觸控面板中,其特=^ 了次π J Β 於上基板及下基板四邊之中間位置分別i出接腳Α C、D、E、F、(ί、H ; Hi it}接腳 Α、 於偵測χ軸座標時,在下基板的左右兩邊接腳Ε、G ;::5上 ^頁取上電户膜之四條偵測線路的信號,此信號即為χ轴訊 接著在下基板的上下兩邊接腳F、Η外加5V與〇ν電壓, ί ΐ Ϊ上述之上基板作為偵測,擷取上電阻膜之四條偵測 線路的信號,此信號即為γ軸訊號。 、 2、如申請專利範圍第丨項所述之觸控面板架構,其中 ,亦可將上基板之接腳A、B、c、])作為電壓之輸入,而下 基板之接腳E、F、G、Η作為偵測使用。 3、如申請專利範圍第丨項所述之觸控面板架構,豆中 ,該上電阻膜與下電阻膜係為透明導電薄膜。 、第3頁
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