TW201128505A - Transparent capacitive touch panel and electrode structure thereof - Google Patents

Transparent capacitive touch panel and electrode structure thereof Download PDF

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Publication number
TW201128505A
TW201128505A TW100110417A TW100110417A TW201128505A TW 201128505 A TW201128505 A TW 201128505A TW 100110417 A TW100110417 A TW 100110417A TW 100110417 A TW100110417 A TW 100110417A TW 201128505 A TW201128505 A TW 201128505A
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Taiwan
Prior art keywords
transparent
layer
touch panel
capacitive touch
cover plate
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TW100110417A
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Chinese (zh)
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TWI402736B (en
Inventor
Hsien-Hsin Wu
Yen-Chung Hung
Ruey-Shing Weng
Chih-Chang Lai
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Wintek Corp
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Abstract

A transparent capacitive touch panel including a transparent substrate, a transparent cover lens and a transparent adhesive layer is provided, wherein a first transparent electrode layer and a second transparent electrode layer are disposed on the transparent cover lens and the transparent substrate respectively. The transparent adhesive layer is used to bind the first and second transparent electrode layers in order to combine the transparent cover lens and the transparent substrate parallelly disposed with the transparent cover lens. Thus, the manufacturing process of the transparent capacitive touch panel is simplified, and the manufacturing cost of the same is lowered.

Description

201128505 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 透明電容式觸控面板。 【先前技術】 隨著時代進步’個人數位助理(pers〇nal DigitalBACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a touch panel, and more particularly to a transparent capacitive touch panel. [Prior Art] Progress with the Times’ Personal Digital Assistant (pers〇nal Digital

Assistant,PDA)、手機、車用導航系統、平板電腦等具有觸 控輸入功能的電子產品已日趨廣泛,而這些產品的顯示螢 幕上一般係建置有觸控面板,以供使用者利用指頭或觸控 筆輸入資訊,且觸控面板具有多種觸控技術,其中電容式 觸控面板是藉由感測電容的變化,與電阻式的直接接觸方 式比較’電容式觸控面板有透光率較佳且較不易損壞的優 點。 圖1Λ為習知之一種透明電容式觸控面板之示意圖, 而圖1B為圖1A之透明電容式觸控面板於結合前之分解示 意圖。請參考圖1A與1B’習知之透明電容式觸控面板 為雙層式之結構,且主要包括一下透明基板11〇、一上透 明基板120以及一透明覆蓋板(c〇ver iens)i3〇 ’其中一上、 下銦錫氧化物層122、112是分別形成於上、下透明基板 120、110之表面’而兩抗反射層132是分別鍍於透明覆蓋 板13 0之兩侧表面。 接著,將上、下銦錫氧化物層122、112相對,並以一 光學膠140黏合上'下透明基板12〇、11〇,而使光學膠14〇 黏貼於上、下銦錫氧化物層P2、112之間,再將透明覆蓋 201128505 板130以一光學膠150黏合於上透明基板120,即完成透 明電容式觸控面板1〇〇的組裝,且透明覆蓋板13〇主要係 用於保護上、下透明基板120、110。 然而’由於透明電容式觸控面板1〇〇結構過厚而無法 滿足輕薄短小的設計理念,因此習知技藝另有提出單層式 之結構以降低厚度。圖2A為習知之另一種透明電容式觸 控面板之示意圖’而圖2B為圖2A之透明電容式觸控面板 於結合鈿之分解示意圖。請參考圖2A與2B,習知之透明 電容式觸控面板200包括一透明基板210以及一透明覆蓋 板220,且一上、下銦錫氧化物層212、214分別形成於透 明基板210之兩相對表面,而兩抗反射層222分別鍍於透 明覆蓋板220之兩相對表面。 接著’將透明覆蓋板220以一光學膠230黏合於透明 基板210 ’即完成透明電容式觸控面板200的組裝;儘管 透明電容式觸控面板200之結構具有較小的厚度,然而其 製程較為困難。 具體而言,上、下銦錫氧化物層212、214是依序形成 於透明基板210之表面,當上銦錫氧化物層212製作完成 後,便要將透明基板210翻轉以繼續形成下銦錫氧化物層 214 ’如此會使得上銦錫氧化物層212接觸到平台或是機械 手臂而發生損壞,進而降低透明電容式觸控面板2〇〇的良 率。 圖3A為習知之再一種透明電容式觸控面板之示意 圖,而圖3B為圖3A之透明電容式觸控面板於結合前之分 解示意圖。請參考圖3A與3B,習知之透明電容式觸控面 201128505 板300包括一透明基板31〇以及一透明覆蓋板320 ’其中 一下銦錫氧化物層312、一絕緣層314、一上銦錫氧化物層 316依序形成於透明基板31〇之表面,而兩抗反射層322 分別鍍於透明覆蓋板320之兩相對表面。 接著,將透明覆蓋板320以光學膠330黏合於透明基, 板310 ’即完成透明電容式觸控面板300的組裝,然而, 要於透明基板320之單側表面同時製作兩層錮錫氧化物層 之製程仍有許多缺點。 具體而言,習知技藝必須增設製作絕緣層312的步 驟’然而如此便會增加透明電容式觸控面板3〇〇的製作工 時與成本’此外’絕緣層312必須開設接觸窗(contact window)(未繪示)以將上銦錫氧化物層316電性導通至透明 基板310上的積體電路(IC)(未繪示),如此更需增加一道光 罩製程以製作接觸窗,而大幅提升透明電容式觸控面板300 的製作成本與困難度。 【發明内容】 有鑑於此,本發明之目的是提供一種透明電容式觸控 面板其製作成本較為低廉,且組裝方式亦較為容易,並 可降低其厚度和重量。 此外本發明之另一目的是提供一種透明電容式觸控 ,板之製作方法’其製程較為簡便,並可大幅提升透明電 容式觸控面板之良率。 為達上述或是其他目的,本發明提出一種透明電容式 觸控面板,包括—透明覆蓋板、-透明基板、-第-透明 201128505 電極層、一第二透明電極層以及一透明黏合層,其中透明 覆蓋板是與透明基板平行,而第一透明電極層與第二透明 電極層是分別配置於透明覆蓋板與透明基板之一面,且透 明黏合層是用於黏合第一透明電極層與第二透明電極層, 藉以結合透明覆蓋板與透明基板。 為達上述或是其他目的,本發明另提出一種透明電容 式觸控面板之製作方法,包括下列步驟:提供一透明覆蓋 板,並於透明覆蓋板之表面形成一第一透明電極層;提供 一透明基板,並於一透明基板之表面形成一第二透明電極 層;以及將透明覆蓋板與透明基板相互平行配置,並提供 一透明黏合層黏合第一透明電極層與第二透明電極層,藉 以結合透明覆蓋板與透明基板。 為達上述或是其他目的,本發明另提出一種透明電容 式觸控面板,包括一透明覆蓋板、一第一透明電極層、一 絕緣層以及一第二透明電極層,其中第一透明電極層是配 置於透明覆蓋板之表面,而絕緣層是配置於第一透明電極 層異於透明覆蓋板之表面,且第二透明電極層是配置於絕 緣層異於第一透明電極層之表面。 為達上述或是其他目的,本發明另提出一種透明電容 式觸控面板之製作方法,包括下列步驟:提供透明覆蓋板, 並於透明覆蓋板之表面形成第一透明電極層;接著於第一 透明電極層之表面形成絕緣層;以及於絕緣層之表面形成 第二透明電極層。 在本發明之一實施例中,上述之透明電容式觸控面板 更包括抗反射層,而抗反射層可配置於透明覆蓋板異於第 201128505 一透明電極層之表面,且抗反射層亦可配置於透明覆蓋板 與第一透明電極層之間。 在本發明之一實施例中,上述之該第一透明電極層與 第二透明電極層之材質例如為銦錫氧化物(ITO)或銦鋅氧 化物(IZO),而透明黏合層可為雙面膠或液態透明黏著劑, 且透明覆蓋板之材質可為塑膠或玻璃,又透明基板之材質 可為玻璃或強化玻璃。 在本發明之一實施例中,上述之透明電容式觸控面板 更包括一屏蔽層,而屏蔽層可配置於透明基板異於第二透 明電極層之表面,且屏蔽層之材質例如為銦錫氧化物或銦 辞氧化物。 在本發明之一實施例中,上述之透明電容式觸控面板 更可包括一裝飾層與一平坦層,其中裝飾層配置於透明覆 蓋板與第一透明電極層之間,而平坦層配置於裝飾層與第 一透明電極層之間,且裝飾層之顏色可為如黑色之單一顏 色或是彩色,並且裝飾層可具有設定之圖文,並裝飾層之 材質可為絕緣材質或導電材質,且平坦層之材質可為絕緣 材質。 綜上所述,在本發明之透明電容式觸控面板中,第一 透明電極層與第二透明電極層是分別製作於透明覆蓋板與 透明基板之表面,而後再將透明覆蓋板與透明基板相對黏 合。相較於習知技藝而言,本發明無需於透明基板上依序 製作兩層透明電極層,因此製程較為簡單,並可大幅提升 良率,且本發明亦無需製作絕緣層,故可簡化製程步驟, 以降低透明電容式觸控面板的製作成本。 201128505 為讓本發明之上述和其他目的、特徵和優點处 易懂,下文特舉較值實施例,並配合所附圖式=明顯 明如下。 叶、·田說 【實施方式】 第一實施例 圖4Α為依據本發明第—實施例之一種透明電容 控面板之示意圖,而圖4Β為圖4 Α之透明電容式觸和、觸 於結合前之分解示意圖。請參考圖4A與4B,本發$面板 明電谷式觸控面板400包括一透明基板410、〜透明 , 板420以及一透明黏合層430,其中第一透明電極屏蓋 與第二透明電極層412分別配置於透明覆蓋板42〇與 基板412之相對表面,而一透明黏合層43〇用於黏人第月 透明電極層422與第二透明電極層412,藉以結合平行 置之透明基板410與透明覆蓋板420。 仃配 相較於習知技藝需於透明基板表面依序製作兩層鋼錫 氧化物層而言(如圖2B、3B),本發明分別於透明基板41〇 與透明覆蓋板420表面製作第二透明電極層412與第一透 明電極層422,因此本發明之製程較為簡單並可大幅提升 良率。 在本實施例中,透明基板410之材質為玻璃,而第二 透明電極層412之柯質為銦錫氧化物,而透明覆蓋板420 之材質可為玻璃或塑膠,且第一透明電極層422之材質可 為銦錫氧化物。 接著,將第一透明電極層422與第二透明電極層412 10 201128505 相對配置,並以如液態透明黏著劑之透明黏合層430黏合 平行配置之透明基板410與透明覆蓋板420,便完成製作 透明電容式觸控面板400。 在前述說明中,透明基板410、透明覆蓋板420、透明 黏合層430、第一透明電極層422與第二透明電極層412 之材質均為舉例,而本發明並不限定其材質;舉例而言, 透明基板410亦可為強化玻璃,且透明黏合層430亦可為 雙面膠’又第一透明電極層422與第二透明電極層412之 材質亦可為銦鋅氧化物等’熟悉此項技藝者當可依據前述 而稍加變化,惟其仍屬本發明之範疇中。 此外,儘管前述先說明形成第二透明電極層412的方 式,而後說明形成第一透明電極層422的方式,但是本發 明亦不限定第一透明電極層422與第二透明電極層412 製作順序。 θ ' 由於透明電容式觸控面板400為單層式之結構,故相 較於雙層式之電容式觸控面板100而言(如圖1A*示”本 發明之透明電容式觸控面板4〇〇的厚度較薄,重量也較 輕’故可滿足輕薄的設計需求,另外,本發明無^作^ 緣層,故可簡化製程步驟,並省略一道光罩製程,以j 透明電容式觸控面板400的製作成本。 氐 為避免透明電容式觸控面板產生炫光,本發明可 一步於透明覆蓋板表面增設抗反射層,以下將另兴 >進 並搭配圖示說明,為求說明簡便,相同名稱之構二仍^例 相同之標號。 /σ用 圖5Α為依據本發明第一實施例之另一種透明電容式 201128505 觸控面板之示思圖,而圖5B為圖5A之透明電容式觸控面 板於結合前之分解示意圖。請參考圖5A與5B,本實施例 之透明電容式觸控面板500與前述之透明電容式觸控面板 400(如圖4A所示)相似,其差別在於透明電容式觸控面板 500更增設抗反射層524、526 ’以降低外界光線於透明覆 蓋板420反射的情形。 抗反射層524、526分別形成於透明覆蓋板420之兩表 面,且其中之一抗反射層524是位於透明覆蓋板420與第 一透明電極層422之間,而另一抗反射層526設於透明覆 蓋板420之另外一側,此外,本實施例是先形成抗反射層 524、526 ’接著再形成第一透明電極層422,但是本發明 亦不限定形成抗反射層524、526與第一透明電極層422的 先後順序。 再者’熟悉此項技藝者當可依據實際需求而僅製作抗 反射層524或是抗反射層526,惟其均屬本發明之範疇内。 另外’本發明可利用一裝飾層製作出圖樣,其中此裝飾層 之圖樣可為商標記號或是產品廣告語(slogan)以讓使用者 會意’以下將另舉實施例並搭配圖示說明。 圖6A為依據本發明第一實施例之再一種透明電容式 觸控面板之示意圖,而圖6B為圖6A之透明電容式觸控面 板於結合前之分解示意圖。請參考圖6A與6B,本實施例 之透明電容式觸控面板600與前述之透明電容式觸控面板 400(如圖4A所示)相似,其差別在於透明電容式觸控面板 600更增設裝飾層624與平坦層626,且裝飾層624可為具 有設定形狀之單一顏色或彩色之文字或花紋,以明顯標示 12 201128505 出產品功能或特色。 在本實施例中,裝飾層624是先形成於透明覆蓋板420 之表面,而後再將裝飾層624平坦化以形成平坦層626, 裝飾層624之顏色可為黑色或其他顏色,且其可利用文 字、花紋、圖案或其他方式呈現,另外,本發明亦可省略 平坦層626,而直接於裝飾層624表面形成第一透明電極 層422,在省略平坦層626之情況下,裝飾層624之材質 為絕緣材質;但在具有平坦層626之情況下,平坦層626 之材質可為絕緣材質,而裝飾層624之之材質不限定為絕 緣材質或是導電材質。 為使透明電容式觸控面板對於靜電或是電磁干擾有更 佳的抵抗效果,本發明可設置屏蔽層以阻擋來自下方顯示 器或電路板的干擾,以下將另舉實施例並搭配圖示說明。 圖7A為依據本發明第一實施例之又一種透明電容式 觸控面板之示意圖,而圖7B為圖7 A之透明電容式觸控面 板於結合前之分解示意圖。請參考圖7A與7B,本實施例 之透明電容式觸控面板700與前述之透明電容式觸控面板 400(如圖4A所示)相似,其差別在於透明電容式觸控面板 700增設屏蔽層714以保護其上之結構。 屏蔽層714是形成於透明基板410異於第二透明電極 層之表面,藉此於屏蔽層714外部所產生的電磁效應均可 被屏蔽層714所屏蔽,可避免來自外部的電磁效應干擾電 容式觸控面板的操作,且屏蔽層714之材質可為銦錫氧化 物或是銦辞氧化物,又屏蔽層714亦可為網狀結構,並可 電性連接於接地。 201128505 而太述分段敘述抗反射層、駿都層以及屏蔽層,然 而^發月亦可將抗反射層、裝飾層或屏蔽層組合實施,且 熟心此項技藝者當可依據實際設計需求而附加抗反射層、 裝飾層或屏蔽層之組合,以提升透明電容式觸控面板二品 質。 由於本發明之透明電容式觸控面板一般會搭配液晶顯 示面板組農’而液晶顯示面板均會配置彩色濾光基板以產 生色彩’因此本發明之透明基板可進一步為彩色濾光基 板’藉此便可減少透明電容式觸控面板與液晶顯示面板整 體組裝的厚度與重量。 第二實施例 前述所舉實施例均為單層式之結構,其中第一透明電 極層與第二透明電極層分別配置於透明基板與透明覆蓋板 之表面。本發明可更進一步將第〆遂明電極層與第二透明 電極層均製作於透明覆蓋板之表面,如此便可無需使用透 明基板而再大幅降低透明電容式觸控面板的厚度。以下將 另舉實施例並搭配圖示說明,然為避免與前述實施例混 淆,各構件將會另以其他標號示之。 圖8為依據本發明第二實施例之一種透明電容式觸控 面板之示意圖。請參考圖8,本實施例之透明電容式觸控 面板800包括透明覆蓋板81〇、第〆透明電極層812、絕緣 層814以及第二透明電極層816,其中第一透明電極層 812、絕緣層814以及第二透明電椏層816是依序形成於透 明覆蓋板810表面。 14 201128505 換句話說,第一透明電極層812是位於透明覆蓋板810 與絕緣層814之間,而絕緣層814是位於第一透明電極層 812與第二透明電極層816之間,且透明覆蓋板810之材 質可為玻璃或塑膠。 另外,絕緣層814可由氮化矽(SixNy)所組成。 相較於習知技藝而言(如圖2A或3A),由於透明電容 式觸控面板800無需設置透明基板,所以本實施例可大幅 減少電容式觸控面板800之厚度與重量,以符合輕薄的設 計需求。此外,透明電容式觸控面板800亦無需進行黏合 製程,故可進一步簡化製作流程、減少工時並降低製作成 本。 值得注意的是,本發明亦可將前述抗反射層與裝飾層 之概念應用至此實施例,以下僅舉一較佳實施例說明,熟 悉此項技藝者當可依據實際需求而增設抗反射層與裝飾 層,並可任意調整反射層、裝飾層與第一透明電極層之間 的相對位置,惟其仍屬本發明之範疇中。 圖9為依據本發明第二實施例之另一種透明電容式觸 控面板之示意圖。請參考圖9,本實施例之透明電容式觸 控面板900與前述之透明電容式觸控面板800(如圖8所示) 相似,其差別在於透明電容式觸控面板900更增設抗反射 層918、裝飾層911與平坦層913,其中抗反射層918、裝 飾層911與平坦層913之材質與功用均與前述相同,於此 便不再贅述。 具體而言,抗反射層918是位於透明覆蓋板810相對 第一透明電極層812之表面,而裝飾層911是位於透明覆 201128505 蓋板810與第一透明電極層812之間,且平%層9l3 β 於將裝飾層911中的空隙進行f坦化,而位於巢都層屺用 與第一透明電極層812之間。 11 具有下 綜上所述,本發明之透明電容式觸控面极至少 列優點: 一、 相較於習知技藝需於透明基板分別依序製作Assistants, PDAs, mobile phones, car navigation systems, tablet computers and other electronic products with touch input functions have become more and more popular, and the display screens of these products generally have touch panels for users to use the fingers or The stylus input information, and the touch panel has a plurality of touch technologies. The capacitive touch panel is compared with the resistive direct contact method by sensing the change of the capacitance. Good and less susceptible to damage. 1B is a schematic view of a transparent capacitive touch panel of the prior art, and FIG. 1B is an exploded view of the transparent capacitive touch panel of FIG. 1A before being combined. Please refer to FIG. 1A and FIG. 1B. The transparent capacitive touch panel is a two-layer structure, and mainly includes a transparent substrate 11 , an upper transparent substrate 120 , and a transparent cover plate (i〇 i i i i i i 〇 〇 One of the upper and lower indium tin oxide layers 122 and 112 are formed on the surfaces of the upper and lower transparent substrates 120 and 110, respectively, and the two anti-reflection layers 132 are respectively plated on both side surfaces of the transparent cover plate 130. Next, the upper and lower indium tin oxide layers 122 and 112 are opposed to each other, and the lower transparent substrate 12〇, 11〇 is bonded by an optical adhesive 140, and the optical adhesive 14〇 is adhered to the upper and lower indium tin oxide layers. Between P2 and 112, the transparent cover 201128505 board 130 is bonded to the upper transparent substrate 120 by an optical adhesive 150, that is, the assembly of the transparent capacitive touch panel 1 is completed, and the transparent cover plate 13 is mainly used for protection. The upper and lower transparent substrates 120 and 110. However, since the transparent capacitive touch panel 1〇〇 structure is too thick to satisfy the design concept of lightness, thinness and shortness, the prior art has also proposed a single layer structure to reduce the thickness. 2A is a schematic view of another transparent capacitive touch panel of the prior art, and FIG. 2B is an exploded view of the transparent capacitive touch panel of FIG. 2A. 2A and 2B, the transparent capacitive touch panel 200 includes a transparent substrate 210 and a transparent cover 220, and an upper and lower indium tin oxide layers 212 and 214 are respectively formed on the transparent substrate 210. The surface, and the two anti-reflective layers 222 are respectively plated on opposite surfaces of the transparent cover plate 220. Then, the transparent cover plate 220 is bonded to the transparent substrate 210 by an optical adhesive 230. The transparent capacitive touch panel 200 is assembled. Although the transparent capacitive touch panel 200 has a small thickness, the process is relatively small. difficult. Specifically, the upper and lower indium tin oxide layers 212 and 214 are sequentially formed on the surface of the transparent substrate 210. After the upper indium tin oxide layer 212 is formed, the transparent substrate 210 is flipped to continue to form the lower indium. The tin oxide layer 214' causes the upper indium tin oxide layer 212 to contact the platform or the robot arm to be damaged, thereby reducing the yield of the transparent capacitive touch panel. FIG. 3A is a schematic view of another transparent capacitive touch panel of the prior art, and FIG. 3B is a schematic diagram of the transparent capacitive touch panel of FIG. 3A before being combined. Referring to FIGS. 3A and 3B , the transparent capacitive touch surface 201128505 board 300 includes a transparent substrate 31 〇 and a transparent cover plate 320 ′ wherein the indium tin oxide layer 312 , an insulating layer 314 , and an indium tin oxide are oxidized. The object layer 316 is sequentially formed on the surface of the transparent substrate 31, and the two anti-reflection layers 322 are respectively plated on opposite surfaces of the transparent cover plate 320. Then, the transparent cover plate 320 is bonded to the transparent substrate by the optical adhesive 330, and the plate 310' completes the assembly of the transparent capacitive touch panel 300. However, two layers of tantalum oxide are simultaneously fabricated on the single-sided surface of the transparent substrate 320. There are still many disadvantages to the layer process. In particular, the prior art has to add a step of making the insulating layer 312. However, this will increase the manufacturing time and cost of the transparent capacitive touch panel 3'. In addition, the insulating layer 312 must have a contact window. (not shown) to electrically connect the upper indium tin oxide layer 316 to the integrated circuit (IC) (not shown) on the transparent substrate 310, so it is more necessary to add a mask process to make the contact window, and The manufacturing cost and difficulty of the transparent capacitive touch panel 300 are improved. SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a transparent capacitive touch panel which is relatively inexpensive to manufacture, and which is easy to assemble and can reduce its thickness and weight. In addition, another object of the present invention is to provide a transparent capacitive touch panel, which is simple in manufacturing process and can greatly improve the yield of the transparent capacitive touch panel. To achieve the above or other purposes, the present invention provides a transparent capacitive touch panel comprising: a transparent cover plate, a transparent substrate, a -th transparent 201128505 electrode layer, a second transparent electrode layer, and a transparent adhesive layer, wherein The transparent cover plate is parallel to the transparent substrate, and the first transparent electrode layer and the second transparent electrode layer are respectively disposed on one surface of the transparent cover plate and the transparent substrate, and the transparent adhesive layer is used for bonding the first transparent electrode layer and the second The transparent electrode layer is combined with the transparent cover plate and the transparent substrate. For the above or other purposes, the present invention further provides a method for fabricating a transparent capacitive touch panel, comprising the steps of: providing a transparent cover plate and forming a first transparent electrode layer on the surface of the transparent cover plate; a transparent substrate, and a second transparent electrode layer is formed on a surface of a transparent substrate; and the transparent cover plate and the transparent substrate are disposed in parallel with each other, and a transparent adhesive layer is bonded to the first transparent electrode layer and the second transparent electrode layer, thereby The transparent cover plate and the transparent substrate are combined. For the above or other purposes, the present invention further provides a transparent capacitive touch panel comprising a transparent cover plate, a first transparent electrode layer, an insulating layer and a second transparent electrode layer, wherein the first transparent electrode layer The surface of the transparent cover plate is disposed on the surface of the transparent cover plate, and the second transparent electrode layer is disposed on the surface of the insulating layer different from the first transparent electrode layer. To achieve the above or other purposes, the present invention further provides a method for fabricating a transparent capacitive touch panel, comprising the steps of: providing a transparent cover plate, and forming a first transparent electrode layer on a surface of the transparent cover plate; An insulating layer is formed on a surface of the transparent electrode layer; and a second transparent electrode layer is formed on a surface of the insulating layer. In an embodiment of the invention, the transparent capacitive touch panel further includes an anti-reflection layer, and the anti-reflection layer can be disposed on the surface of the transparent cover layer different from the transparent electrode layer of the 201128505, and the anti-reflection layer can also be The utility model is disposed between the transparent cover plate and the first transparent electrode layer. In an embodiment of the present invention, the material of the first transparent electrode layer and the second transparent electrode layer is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO), and the transparent adhesive layer may be double A surface adhesive or a liquid transparent adhesive, and the material of the transparent cover plate may be plastic or glass, and the material of the transparent substrate may be glass or tempered glass. In one embodiment of the present invention, the transparent capacitive touch panel further includes a shielding layer, and the shielding layer can be disposed on the surface of the transparent substrate different from the second transparent electrode layer, and the shielding layer is made of, for example, indium tin. Oxide or indium oxide. In an embodiment of the invention, the transparent capacitive touch panel further includes a decorative layer and a flat layer, wherein the decorative layer is disposed between the transparent cover plate and the first transparent electrode layer, and the flat layer is disposed on the flat layer Between the decorative layer and the first transparent electrode layer, and the color of the decorative layer may be a single color or color such as black, and the decorative layer may have a set graphic, and the decorative layer may be made of an insulating material or a conductive material. The material of the flat layer can be made of insulating material. In summary, in the transparent capacitive touch panel of the present invention, the first transparent electrode layer and the second transparent electrode layer are respectively formed on the surface of the transparent cover plate and the transparent substrate, and then the transparent cover plate and the transparent substrate are respectively formed. Relatively bonded. Compared with the prior art, the present invention does not need to sequentially form two transparent electrode layers on a transparent substrate, so the process is relatively simple, and the yield can be greatly improved, and the invention does not need to make an insulating layer, thereby simplifying the process. Steps to reduce the manufacturing cost of the transparent capacitive touch panel. The above and other objects, features, and advantages of the present invention will be apparent from the description of the appended claims. [Embodiment] First Embodiment FIG. 4A is a schematic diagram of a transparent capacitive control panel according to a first embodiment of the present invention, and FIG. 4A is a transparent capacitive touch of FIG. The decomposition diagram. 4A and 4B, the present invention includes a transparent substrate 410, a transparent plate, a plate 420, and a transparent adhesive layer 430, wherein the first transparent electrode cover and the second transparent electrode layer The 412 is respectively disposed on the opposite surface of the transparent cover 42 〇 and the substrate 412 , and a transparent adhesive layer 43 黏 is used to adhere the first transparent electrode layer 422 and the second transparent electrode layer 412 , thereby combining the parallel transparent substrate 410 and Transparent cover plate 420. Compared with the prior art, the two layers of steel tin oxide layers are sequentially formed on the surface of the transparent substrate (as shown in FIGS. 2B and 3B), and the present invention is respectively fabricated on the surface of the transparent substrate 41 and the transparent cover plate 420. The transparent electrode layer 412 and the first transparent electrode layer 422, therefore, the process of the present invention is relatively simple and can greatly improve the yield. In this embodiment, the material of the transparent substrate 410 is glass, and the surface of the second transparent electrode layer 412 is indium tin oxide, and the material of the transparent cover plate 420 may be glass or plastic, and the first transparent electrode layer 422 The material can be indium tin oxide. Then, the first transparent electrode layer 422 and the second transparent electrode layer 412 10 201128505 are disposed opposite to each other, and the transparent substrate 410 and the transparent cover plate 420 disposed in parallel are adhered by a transparent adhesive layer 430 such as a liquid transparent adhesive, thereby completing the transparent process. Capacitive touch panel 400. In the foregoing description, the materials of the transparent substrate 410, the transparent cover plate 420, the transparent adhesive layer 430, the first transparent electrode layer 422, and the second transparent electrode layer 412 are all examples, and the present invention is not limited to the material thereof; for example, The transparent substrate 410 can also be a tempered glass, and the transparent adhesive layer 430 can also be a double-sided tape. The material of the first transparent electrode layer 422 and the second transparent electrode layer 412 can also be indium zinc oxide, etc. The skilled artisan may vary slightly depending on the foregoing, but it is still within the scope of the invention. Further, although the foregoing describes the manner in which the second transparent electrode layer 412 is formed, and the manner in which the first transparent electrode layer 422 is formed will be described later, the present invention does not limit the order in which the first transparent electrode layer 422 and the second transparent electrode layer 412 are formed. θ ' Since the transparent capacitive touch panel 400 has a single-layer structure, compared with the two-layer capacitive touch panel 100 (as shown in FIG. 1A*), the transparent capacitive touch panel 4 of the present invention The thickness of the crucible is thinner and the weight is lighter, so it can meet the requirements of light and thin design. In addition, the invention does not have a layer of the edge, so that the process steps can be simplified, and a mask process is omitted, and the transparent capacitive touch is used. The manufacturing cost of the control panel 400. 氐 In order to avoid the glare of the transparent capacitive touch panel, the present invention can add an anti-reflection layer on the surface of the transparent cover plate in one step, and the following will be further described with reference to the illustration. For the sake of simplicity, the same name is used for the same reference numerals. /σ is shown in FIG. 5B as a transparent capacitive type 201128505 touch panel according to the first embodiment of the present invention, and FIG. 5B is transparent to FIG. 5A. The transparent capacitive touch panel 500 of the present embodiment is similar to the transparent capacitive touch panel 400 (shown in FIG. 4A ), and the transparent capacitive touch panel 400 of the present embodiment is similar to that of FIG. 5A and FIG. The difference is in transparent capacitance The touch panel 500 further adds anti-reflection layers 524, 526' to reduce the reflection of external light on the transparent cover plate 420. The anti-reflection layers 524, 526 are respectively formed on both surfaces of the transparent cover plate 420, and one of the anti-reflection layers 524 is located between the transparent cover plate 420 and the first transparent electrode layer 422, and the other anti-reflective layer 526 is disposed on the other side of the transparent cover plate 420. In addition, in this embodiment, the anti-reflection layers 524, 526' are formed first. Then, the first transparent electrode layer 422 is formed. However, the present invention does not limit the order of forming the anti-reflective layers 524 and 526 and the first transparent electrode layer 422. Further, those skilled in the art can only make according to actual needs. The anti-reflective layer 524 or the anti-reflective layer 526 is only within the scope of the present invention. In addition, the present invention can make a pattern by using a decorative layer, wherein the decorative layer can be a commercial mark or a product slogan (slogan). FIG. 6A is a schematic diagram of still another transparent capacitive touch panel according to the first embodiment of the present invention, and FIG. 6B is a schematic view of the embodiment of the present invention. FIG. 6A and 6B, the transparent capacitive touch panel 600 of the present embodiment and the transparent capacitive touch panel 400 (shown in FIG. 4A). Similarly, the difference is that the transparent capacitive touch panel 600 further adds a decorative layer 624 and a flat layer 626, and the decorative layer 624 can be a single color or color text or pattern with a set shape to clearly indicate the function of the product. Or in the present embodiment, the decorative layer 624 is first formed on the surface of the transparent cover plate 420, and then the decorative layer 624 is planarized to form a flat layer 626, and the color of the decorative layer 624 may be black or other colors, and It can be represented by characters, patterns, patterns or other means. In addition, the flat layer 626 can be omitted in the present invention, and the first transparent electrode layer 422 is formed directly on the surface of the decorative layer 624. In the case where the flat layer 626 is omitted, the decorative layer is omitted. The material of the 624 is made of an insulating material; but in the case of the flat layer 626, the material of the flat layer 626 may be an insulating material, and the material of the decorative layer 624 is not limited to the insulation. Mass or conductive material. In order to make the transparent capacitive touch panel more resistant to static electricity or electromagnetic interference, the present invention can be provided with a shielding layer to block interference from the lower display or the circuit board, which will be further illustrated by the following embodiments. FIG. 7A is a schematic diagram of still another transparent capacitive touch panel according to the first embodiment of the present invention, and FIG. 7B is an exploded perspective view of the transparent capacitive touch panel of FIG. 7A before being combined. Referring to FIGS. 7A and 7B , the transparent capacitive touch panel 700 of the present embodiment is similar to the transparent capacitive touch panel 400 (shown in FIG. 4A ), and the difference is that the transparent capacitive touch panel 700 is provided with a shielding layer. 714 to protect the structure thereon. The shielding layer 714 is formed on the surface of the transparent substrate 410 different from the second transparent electrode layer, so that the electromagnetic effect generated outside the shielding layer 714 can be shielded by the shielding layer 714, thereby avoiding electromagnetic interference from external electromagnetic interference. The operation of the touch panel, and the material of the shielding layer 714 can be indium tin oxide or indium oxide, and the shielding layer 714 can also be a mesh structure and can be electrically connected to the ground. 201128505 While the Taishu section describes the anti-reflection layer, the Jun Du layer and the shielding layer, the anti-reflective layer, the decorative layer or the shielding layer can also be implemented in combination with the moon, and the skilled person can be based on the actual design requirements. A combination of an anti-reflective layer, a decorative layer or a shielding layer is added to improve the quality of the transparent capacitive touch panel. Since the transparent capacitive touch panel of the present invention generally matches the liquid crystal display panel, the liquid crystal display panel is configured with a color filter substrate to generate color. Therefore, the transparent substrate of the present invention can further be a color filter substrate. The thickness and weight of the transparent capacitive touch panel and the liquid crystal display panel can be reduced. Second Embodiment The foregoing embodiments are all of a single-layer structure in which a first transparent electrode layer and a second transparent electrode layer are respectively disposed on surfaces of a transparent substrate and a transparent cover plate. According to the present invention, both the first electrode layer and the second transparent electrode layer can be formed on the surface of the transparent cover plate, so that the thickness of the transparent capacitive touch panel can be greatly reduced without using a transparent substrate. The embodiments are described below in conjunction with the drawings, but in order to avoid confusion with the foregoing embodiments, the components will be denoted by other reference numerals. FIG. 8 is a schematic diagram of a transparent capacitive touch panel according to a second embodiment of the present invention. Referring to FIG. 8 , the transparent capacitive touch panel 800 of the present embodiment includes a transparent cover plate 81 , a second transparent electrode layer 812 , an insulating layer 814 , and a second transparent electrode layer 816 , wherein the first transparent electrode layer 812 and the insulating layer are insulated. The layer 814 and the second transparent electrode layer 816 are sequentially formed on the surface of the transparent cover plate 810. In other words, the first transparent electrode layer 812 is located between the transparent cover plate 810 and the insulating layer 814, and the insulating layer 814 is located between the first transparent electrode layer 812 and the second transparent electrode layer 816, and is transparently covered. The material of the plate 810 can be glass or plastic. In addition, the insulating layer 814 may be composed of tantalum nitride (SixNy). Compared with the prior art (such as FIG. 2A or FIG. 3A), since the transparent capacitive touch panel 800 does not need to be provided with a transparent substrate, the embodiment can greatly reduce the thickness and weight of the capacitive touch panel 800 to conform to the thin and light. Design needs. In addition, the transparent capacitive touch panel 800 does not require a bonding process, which further simplifies the manufacturing process, reduces man-hours, and reduces manufacturing costs. It should be noted that the present invention can also apply the concept of the anti-reflection layer and the decorative layer to the embodiment. The following description is only given by a preferred embodiment. Those skilled in the art can add an anti-reflection layer according to actual needs. The decorative layer can be arbitrarily adjusted to the relative position between the reflective layer, the decorative layer and the first transparent electrode layer, but it is still within the scope of the present invention. Figure 9 is a schematic illustration of another transparent capacitive touch panel in accordance with a second embodiment of the present invention. Referring to FIG. 9 , the transparent capacitive touch panel 900 of the present embodiment is similar to the transparent capacitive touch panel 800 (shown in FIG. 8 ), and the difference is that the transparent capacitive touch panel 900 is further provided with an anti-reflection layer. 918, the decorative layer 911 and the flat layer 913, wherein the materials and functions of the anti-reflective layer 918, the decorative layer 911 and the flat layer 913 are the same as described above, and thus will not be described again. Specifically, the anti-reflective layer 918 is located on the surface of the transparent cover plate 810 opposite to the first transparent electrode layer 812, and the decorative layer 911 is located between the transparent cover 201128505 cover plate 810 and the first transparent electrode layer 812, and the flat layer is 9l3 β is f-constantized in the void in the decorative layer 911, and is located between the nest layer and the first transparent electrode layer 812. 11 As described in the following, the transparent capacitive touch surface of the present invention has at least the advantages of the following: 1. Compared with the prior art, the transparent substrate is sequentially prepared separately.

銦錫氧化物層而言,本發明分別於透明基板與透明覆蓋均 表面製作第二透明電極層與第一透明電極層,因此本發^ 之製程較為簡單並可大幅提升良率。 X 二、 此外’由於第一實施例之透明電容式觸控面板不In the indium tin oxide layer, in the present invention, the second transparent electrode layer and the first transparent electrode layer are respectively formed on the transparent substrate and the transparent cover surface. Therefore, the process of the present invention is relatively simple and can greatly improve the yield. X II. In addition, since the transparent capacitive touch panel of the first embodiment is not

需具有絕緣層’故可簡化製程步驟,並省略—道光 以降低其製作成本。 W 曰π三、相較於雙層式之透明電容式觸控面板而言,本發 和單層式之透明電容式觸控面板的厚度較薄,重量也較 ^,故可滿足輕薄的設計需求;且第二實施例之透明電容 面板無需設置透明基板,所以相較於所有習知的透 'A觸控面板結構而言’其厚度較薄,重量也較輕。 黏入^ 1第二實施例之之透明電容式觸控面板可無需進行 制^,、耘,因此可進一步簡化製作流程、減少工時並降低 限定本發日月已以較佳實施例揭露如上,然其並非用以 和範圍内月卷任何熟習此技藝者,在不脫離本發明之精神 範圍可作些許之更動與潤飾,因此本發明之保護 圍虽視輪之巾料利_所衫者為準。 16 201128505 【圖式簡單說明】 圖1A與1B為習知之一種透明電容式觸控面板之示意 圖。 圖2A與2B為習知之另一種透明電容式觸控面板之示 意圖。 圖3A與3B為習知之再一種透明電容式觸控面板之示 意圖。 圖4A與4B為依據本發明第一實施例之一種透明電容 式觸控面板之示意圖。 圖5A與5B為依據本發明第一實施例之另一種透明電 容式觸控面板之示意圖。 圖6A與6B為依據本發明第一實施例之再一種透明電 容式觸控面板之示意圖。 圖7A與7B為依據本發明第一實施例之又一種透明電 容式觸控面板之示意圖。 圖8為依據本發明第二實施例之一種透明電容式觸控 面板之示意圖。 圖9為依據本發明第二實施例之另一種透明電容式觸 控面板之示意圖。 【主要元件符號說明】 100、200、300 :透明電容式觸控面板 110 :下透明基板 112、214、312 :下銦錫氧化物層 120 :上透明基板 17 201128505 122、212、316 :上銦錫氧化物層 130、220、320 :透明覆蓋板 132、222、322 :抗反射層 140、150、230 :光學膠 210、310 :透明基板 314 :絕緣層 400、500、600、700、800、900 :透明電容式觸控面 410 :透明基板 412、816 :第二透明電極層 420、810 :透明覆蓋板 422、812 :第一透明電極層 430 :透明黏合層 524、526、918 :抗反射層 624、911 :裝飾層 626、913 :平坦層 714 :屏蔽層 814 :絕緣層 18It is necessary to have an insulating layer' so that the process steps can be simplified and the light can be omitted to reduce the manufacturing cost. W 曰 π 3, compared with the double-layer transparent capacitive touch panel, the transparent and single-layer transparent capacitive touch panel of the present invention has a thinner thickness and a lower weight, so that the thin and light design can be satisfied. The transparent capacitor panel of the second embodiment does not need to be provided with a transparent substrate, so that it has a thinner thickness and a lighter weight than all conventional transparent touch panel structures. The transparent capacitive touch panel of the second embodiment can be further simplified, the manufacturing process, the man-hour reduction, and the limitation of the present invention can be further simplified by the preferred embodiment as described above. However, it is not intended to be used by anyone skilled in the art, and some modifications and retouchings may be made without departing from the spirit of the invention, and therefore the protection of the present invention is advantageous. Prevail. 16 201128505 [Simplified Schematic] FIGS. 1A and 1B are schematic diagrams of a conventional transparent capacitive touch panel. 2A and 2B are schematic illustrations of another transparent capacitive touch panel of the prior art. 3A and 3B are schematic views of still another transparent capacitive touch panel. 4A and 4B are schematic views of a transparent capacitive touch panel in accordance with a first embodiment of the present invention. 5A and 5B are schematic diagrams showing another transparent capacitive touch panel according to a first embodiment of the present invention. 6A and 6B are schematic views of still another transparent capacitive touch panel according to a first embodiment of the present invention. 7A and 7B are schematic views showing still another transparent capacitive touch panel according to the first embodiment of the present invention. FIG. 8 is a schematic diagram of a transparent capacitive touch panel according to a second embodiment of the present invention. Figure 9 is a schematic illustration of another transparent capacitive touch panel in accordance with a second embodiment of the present invention. [Description of main component symbols] 100, 200, 300: transparent capacitive touch panel 110: lower transparent substrate 112, 214, 312: lower indium tin oxide layer 120: upper transparent substrate 17 201128505 122, 212, 316: upper indium Tin oxide layer 130, 220, 320: transparent cover plate 132, 222, 322: anti-reflection layer 140, 150, 230: optical glue 210, 310: transparent substrate 314: insulation layer 400, 500, 600, 700, 800, 900: transparent capacitive touch surface 410: transparent substrate 412, 816: second transparent electrode layer 420, 810: transparent cover plate 422, 812: first transparent electrode layer 430: transparent adhesive layer 524, 526, 918: anti-reflection Layers 624, 911: decorative layers 626, 913: flat layer 714: shielding layer 814: insulating layer 18

Claims (1)

201128505 十、申請專利範圍: 1. 一種透明電容式觸控面板電極結構,包括: 一透明覆蓋板; 一絕緣層,形成於該透明覆蓋板上; 一透明電極層,形成該絕緣層上;以及 一裝飾層,配置於該透明覆蓋板。 2. 如申請專利範圍第1項所述之透明電容式觸 控面板電極結構,其中該絕緣層為一平坦層。 3. 如申請專利範圍第1項所述之透明電容式觸 控面板電極結構,其中該裝飾層配置於該透明覆蓋板 之周緣。 4. 如申請專利範圍第1或3項所述之透明電容式 觸控面板電極結構,其中該絕緣層覆蓋該裝飾層。 5. 如申請專利範圍第1項所述之透明電容式觸 控面板電極結構,其中該裝飾層配置於該透明覆蓋板 與該透明電極層之間。 6. —種透明電容式觸控面板電極結構,包括: 一透明覆蓋板; 一透明電極層,配置於該透明覆蓋板之表面;以 及 一裝飾層,配置於該透明覆蓋板。 7. 如申請專利範圍第6項所述之透明電容式觸 控面板電極結構,其中該裝飾層配置於該透明覆蓋板 之周緣。 8. 如申請專利範圍第6項所述之透明電容式觸 19 201128505 控面板電極結構,其中該裝飾層配置於該透明覆蓋板 與該透明電極層之間。 9. 一種透明電容式觸控面板,包括: 一透明覆蓋板; 一第一透明電極層,配置於該透明覆蓋板之表 面; 一絕緣層,配置於該第一透明電極層異於該透明 覆蓋板之表面; 一第二透明電極層,配置於該絕緣層異於該第一 透明電極層之表面;以及 一裝飾層,配置於該透明覆蓋板。 10. 如申請專利範圍第9項所述之透明電容式觸 控面板,更包括一平坦層,配置於該裝飾層與該第一 透明電極層之間。 11. 如申請專利範圍第9項所述之透明電容式觸 控面板電極結構,其中該裝飾層配置於該透明覆蓋板 之周緣。 20201128505 X. Patent application scope: 1. A transparent capacitive touch panel electrode structure, comprising: a transparent cover plate; an insulating layer formed on the transparent cover plate; a transparent electrode layer forming the insulating layer; A decorative layer is disposed on the transparent cover plate. 2. The transparent capacitive touch panel electrode structure of claim 1, wherein the insulating layer is a flat layer. 3. The transparent capacitive touch panel electrode structure of claim 1, wherein the decorative layer is disposed on a periphery of the transparent cover plate. 4. The transparent capacitive touch panel electrode structure of claim 1 or 3, wherein the insulating layer covers the decorative layer. 5. The transparent capacitive touch panel electrode structure of claim 1, wherein the decorative layer is disposed between the transparent cover plate and the transparent electrode layer. 6. A transparent capacitive touch panel electrode structure comprising: a transparent cover plate; a transparent electrode layer disposed on a surface of the transparent cover plate; and a decorative layer disposed on the transparent cover plate. 7. The transparent capacitive touch panel electrode structure of claim 6, wherein the decorative layer is disposed on a periphery of the transparent cover plate. 8. The transparent capacitive contact 19 201128505 control panel electrode structure according to claim 6, wherein the decorative layer is disposed between the transparent cover plate and the transparent electrode layer. A transparent capacitive touch panel comprising: a transparent cover plate; a first transparent electrode layer disposed on a surface of the transparent cover plate; an insulating layer disposed on the first transparent electrode layer different from the transparent cover a surface of the plate; a second transparent electrode layer disposed on the surface of the insulating layer different from the first transparent electrode layer; and a decorative layer disposed on the transparent cover plate. 10. The transparent capacitive touch panel of claim 9, further comprising a flat layer disposed between the decorative layer and the first transparent electrode layer. 11. The transparent capacitive touch panel electrode structure of claim 9, wherein the decorative layer is disposed on a periphery of the transparent cover plate. 20
TW100110417A 2007-12-24 2007-12-24 Transparent capacitive touch panel and electrode structure thereof TWI402736B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI459258B (en) * 2011-09-10 2014-11-01 Tpk Touch Solutions Xiamen Inc Touch panel with shielding structure and its manufacturing process
TWI595388B (en) * 2013-03-22 2017-08-11 群創光電股份有限公司 Touch display apparatus

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EP2101249B1 (en) * 2007-01-04 2016-05-18 Nissha Printing Co., Ltd. Protective panel having touch panel function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI459258B (en) * 2011-09-10 2014-11-01 Tpk Touch Solutions Xiamen Inc Touch panel with shielding structure and its manufacturing process
US9134828B2 (en) 2011-09-10 2015-09-15 Tpk Touch Solutions (Xiamen) Inc. Touch panel having a shielding structure and method of manufacturing the same
TWI595388B (en) * 2013-03-22 2017-08-11 群創光電股份有限公司 Touch display apparatus

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