574515574515
【本發明之領域】 、本發明相關於-種觸控面板，尤指一種具前光板功能 之觸控面板及其製造方法。 【本發明之背景】 目前觸控式面板已廣泛使用於各種電子儀器，包括一 些可隨身攜帶’強調輕薄短小之電子儀器上，如pDA、電 子子典、手錶、計算機或筆記型電腦等。使用觸控面板相 语方便，不須再頟外增加鍵盤等輸入裝置，大幅減少裝置 《重！。錢今市場需求而t，愈輕巧、方便攜帶，便愈 具市場競爭力。 一般平面顯示裝置所使用之觸控面板設計多由兩層鍍 有銦錫氧化物（Ιτ〇)之PET(polyester聚酉旨）板及玻璃板所 組σ，中間灑佈支撐粒（s P a c e Γ)而達成。習用之平面顯示 裝置請參照第1圖，第1圖為一前光反射式液晶顯示裝置之 剖面示意圖。該前光反射式液晶顯示裝置中包含一液晶顯 示面板150，其上方置有一前光板13〇，該前光板13〇上 方置有一觸控面板模組120，該觸控面板模組12〇係包含 一透明玻璃板125,該玻璃板125之上表面鍍有一銦錫氧 化物（ΙΤΟ)層124，該銦錫氧化物（ΙΤ〇)係為一透明導電 物質，·該1丁0層124上並灑佈有一層支撐粒（spacer)層 126 ;另有一透明PET板121 ’其下表面亦鍍有一 IT〇層 122，該PET板12 1與該玻璃板125以雙面膠黏合，且於該 P E T板1 2 1與該玻璃板1 2 5之間散体有一支撐粒層1 2 6。作 4 I氏張尺度適用中國國家標準（CNS) A4規格（210X297公釐)_ ---- (請先閱讀背面之注意事項再填寫本頁各欄) 嫌 -----、一叮--------- 鲁· 574515 A7 B7 五、發明説明（2 ) 〜 用時，若P E T板1 2 1於某一定點承受壓力，致使這一點上 的IT 0層1 2 2與IT 0層1 2 4接觸形成電流通路，便可傳出 顯π此受力點之電子訊號，以為輸入訊號之用。該觸控模 组120亦以雙面膠貼附至該前光板丨3〇或外殼i 〇〇上。卫吴 由於以往觸控面板之設計，如上所述，層數相當多， 厚度之減少有其限制，要維持原裝置設計而再降低其厚度 相當困難。因此，需要另外一種裝置設計，有效降低厚度 並減輕重量◦ 發明人爰因於此，本於積極發明之精神，虽思一種可 以解決上述問題之「具前光板功能之觸控面板及其製造方 法」，幾經研究實驗終至完成此項嘉惠世人之發明。 【本發明之概述】 本發明之主要目的係在提供一種具前光板功能之觸控 面板，俾能結合觸控面板與前光板之功能，並減少觸控面 板之厚度，減輕重量，且能提高螢幕亮度。 本發明之另一目的係在提供一種具前光板功能之觸控 面板之製造方法，俾能製造低厚度、重量輕之觸控面板。 為達成上述之目的’本發明係相關於一種具前光板功 能之觸控面板，配合一顯示面板使用，包含：一透明上其 板’係位於該顯示面板之一表面上方；一具導光功能之下 基板’係位於該上基板與該顯示面板之間；一第一透明導 電層，係位於該上基板之一表面上，並介於該上基板與該 _____ 5 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐) ' ------ (請先閲讀背面之注意事項再填寫本頁各欄) 麟 、一叮 %· 五、發明説明（3 ) 下基板之間；一第二透明導電層，係位於該下基板之一表 面上，並介於該上基板與該下基板之間；其中，該第一透 明導電層與該顯示面板之距離大於該第二透明導電層與該 頜不面板之距離，以及一支撐粒（spacer)層，係位於該第 透明導電層與該第二透明導電層之間。 此外，本發明具前光板功能之觸控面板之製造方法， 包括.k供-具導光功能之下基板，於該下基板表面上形 成第二透明導電層；提供一透明上基板，於該上基板表面 上形成第一透明導電層；於已經形成第二透明導電層之該 下基板表面上灑佈支撐粒（spacer)形成支撐粒層，或於已 經形成第一透明導電層之該上基板表面上灑佈支撐妒 (spacer)B成支撐粒層；以及將已經形成第一透明導電層 之該上基板與已經形成第二透明導電層之該下基板結=: 使該支撐粒層位於該上基板與該下基板之間，且該第—透 明導電層與第二透明導電層皆位於該上基板與該下基板、 間。 〈 由於本發明確有增進功效，故依法中請發明專利。 【圖式簡單説明】 第1圖係習知技藝之剖面示意圖。 第2圖係本發明之剖面示意圖。 【圖號説明】 100 外殼 1 10 光源 574515 A7 ___Β7_ 五、發明説明（4 ) 120 觸控面板模組 121 PET板 122 銦錫氧化物（ITO)層 123 空隙 124 銦錫氧化物（ITO)層 12 5 玻璃板 126 支撐粒（spacer) 130 前光板 14 0 空隙 150 液晶顯示面板 2〇〇 外殼 2 10 光源 2 2 0 觸控面板模組 221 PET板 222 錮錫氧化物（ITO)層 223 空隙 224 銦錫氧化物（ITO)層 225 支撐粒（spacer) 23 0 導光板 2 4 0 液晶顯示面板 【較佳具體實施例之詳細説明】 本發明具前光板功能之觸控面板，係配合一顯示面 板’包㊁· 透明上基板，位於該顯不面板之一表面上 方；一具導光功能之下基板，位於該上基板與該顯示面板 之間；一第一透明導電層，位於該上基板之一表面上，並 j於邊上基板與该下基板之間；一第二透明導電層，位於 邊下基板之一表面上，並介於該上基板與該下基板之間； 其中，該第一透明導電層與該顯示面板之距離大於該第二 透明導電層與該顯示面板之距離；以及一支撐粒（spacer) -t __ _ 7 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐) ''一"' -- (請先閲讀背面之注意事項再填寫本頁各欄) Γ • m I tm —ϋ In m n ^ - i-ϋ ^^1 Hi ^^1 ^^1 ^^1 m I— 二-ΰ 五、發明説明（5 ) 層’位於該第—透明遒ί： 本發明所丄:電:Γ該第二透明導電層之間。 顧于面板(TFT τ 種類無限制，較佳為液晶 D)。該透明上基板材質無限制，較佳 功能之下基板材質無限制，較佳為玻 5门刀 。孩具導光功能之基 溝結構或是具凸出财、主 ㈣住為具表面破 面形狀無限制，較心導光功能之下基板截 μ、 4具有-楔形或矩形之截面；該下基 〈微溝結構形成方法無限制，較佳為蚀刻成型、切 ::型、：出成型或贴附一層微溝膜而形成。該第一透明 寸電層與弟二透明導電層之材質無限制，較佳為銦錫氧化 物（ΙΤ〇)。該透明導電物質層形成於該基板上之方式無限 制，較佳為沉積、塗覆或蒸鍍方式形成。該支撐粒層可形 成於㈣該透明導電物f之該上基板上，或鍍有該透明導 電物質之該下基板上。本裝置所使用光源種類無限制，較 佳為發光二極體（LED)或冷陰極螢光燈（CcFL)。 為能讓貴審查委員能更瞭解本發明之技術内容，特 舉較佳具體實施例説明如下。然本實施例僅係為了便於説 :而舉例而已，本發明所主張之權利範圍自應以中請專利 範圍所述為準，而非僅限於本實施例。 請參照第2目，帛2目係、本發明之剖面示意圖（其並 未依實際尺寸比例繪示）。在TFT-LCD 240上方置有一 具前光板功能之觸控面板模組22〇,係包含一透明上基板 (PET板）221，一具導光功能之高分子下基板23〇，第一 透明導電物質層（ITO層）222，第二透明導電物質層（IT〇 __ 8 本紙張尺度顧巾ΗΗ家鮮（CNS) Α4規格（210X297公釐） 574515 五、發明説明（ 層)224 以；5 — + 4^ > ^^^；i(spacer)層225 ◦其中該透明上基 板（PET板）221 ’位於該顯示面板24〇之一表面上方；該 (請先閲讀背面之注意事項再填寫本頁各攔) 具導光功能< 南分子下基板23〇，係位於該上基板221與 及顯不面板240之間，該具導光功能之高分子下基板之厚 度…、限制，本異施例為1 土 〇 · 3 。該第一透明導 電物質層（ITO層）222，係位於該上基板221之一表面 上並介於该上基板221與該下基板230之間；該第二 透明導私物貝層（IT〇層）224，係沉積於該下基板230之 一表面上；孫支撐粒（spacer)層225，係位於該第一 IT〇 層222與該第二ΙΤ〇層224之間，該支撐粒（spacer)層 225於本實施例中係於該下基板23〇上形成。於本實施例 中涿上基板221係以雙面膠與該下基板23〇黏合組裝。 本發明具$光板功能之觸控面板之製造方法，係為提 供一具導光功能之下基板23()，該具導光功能之下基板 230係藉由在該高分子下基板上貼覆一層微溝膜而形成， 讀微溝角度、深度與間距係依所要求之光學特性、畫素尺 寸與畫素排列方式而有所不同◦一般於固定畫素大小之條 件下，其微溝間距係為一固定値，而微溝之角度、深度則 可為變數，以得到較佳之亮度、對比、均勻度等光學特 性。於一實施例中，微溝間距例如為一固定之〇15mm， 而微溝深度則可為0.0 05 mm至〇.〇2〇mm。之後於該下 基板230表面上鍍上IT0層224。另外再提供一透明上 基板（PET板）221，於該上基板221表面上鍍上ΙΤ〇層 222 ;接著於已經形成ΙΤ0層224之該下基板23〇表面 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公董） 574515 A7 B7 五、發明説明（7 ) (請先閲讀背面之注意事項再填寫本頁各欄) 上灑佈支撐粒（spacer)形成支撐粒層225。最後，將已經 形成ITO層222之該上基板221與已經形成IT〇層224 之4下基板2 3 0結合，並使該支撐粒層2 2 5位於該上基 板221與該下基板23〇之間，且該Ιτ〇層222與ιτ〇 層2 2 4皆位於該上基板2 2 1與該下基板2 3 〇之間。 如第2圖所示，當光線由該下基板2 3 〇側面入光 時，會被微溝反射向下，改變行進方向，再經由顯示面板 2 4 0反射至顯示區域出光。同時，因I τ 〇具導電功能， 因此在该觸控面板某一點承受壓力時，該IΤ 0層2 2 2與 鍍於孩下基板230上之該ΙΤΟ層2 24相接觸，形成電流 通路而傳出受力點之電子訊號。因此，本裝置係將原分離 之前光板與觸控面板兩單元結合，形成一具前光功能之觸 控面板。 由第1圖與第2圖比較得知，習知技藝之觸控面板厚 度、重量較高，且光線須經前光板、一層玻璃板、一層 PET板、二層IT〇層以及二層空隙才能到達使用者眼 中’光線損失較大◦而本發明係將第1圖中之I T Q層 1 2 4直接鍍於前光板上，因此減少了玻璃板1 2 5與空隙 140兩層厚度，大幅減少觸控面板之厚度與重量。同時， 因光線穿透之界面數減少，損失亦隨之減少，顯示面板亮 度隨之大幅提昇。本發明係將原生產技術進一步簡化，更 適合大量生產；同時兼具減輕厚度、重量與提高顯示器亮 度之優點’大幅提弄市場競爭力’實為現有技術上之突 破0 10 本紙張尺度適用中國國家標準（CNS) Α4規格（210X297公釐） 574515 A7 B7 五、發明説明（8 ) 上述諸多實施例僅係為了便於説明而舉例而已，本發 明所主張之權利範圍自應以申請專利範圍所述為準，而非 僅限於上述實施例。 (請先閲讀背面之注意事項再填寫本頁各欄) .禱 訂--------- 每！ 11 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐）[Field of the invention] The present invention relates to a touch panel, in particular to a touch panel with a front light plate function and a manufacturing method thereof. [Background of the present invention] Currently, touch panels have been widely used in various electronic instruments, including some portable electronic devices that emphasize lightness, thinness, and shortness, such as pDA, electronic code, watches, computers, or notebook computers. It is convenient to use the touch panel language, and it is no longer necessary to add input devices such as a keyboard, which greatly reduces the device. . The market demand for money today is, the lighter and more portable it is, the more competitive the market is. Generally, the touch panel design used in flat display devices is composed of two layers of PET (polyester) plates and glass plates coated with indium tin oxide (Ιτ〇), and the supporting particles (s P ace Γ). Please refer to FIG. 1 for a conventional flat display device. FIG. 1 is a schematic cross-sectional view of a front light reflection type liquid crystal display device. The front light reflection type liquid crystal display device includes a liquid crystal display panel 150. A front light plate 13o is disposed above the front light plate 13o. A touch panel module 120 is disposed above the touch panel module 120. The touch panel module 120 includes A transparent glass plate 125 has an indium tin oxide (ITO) layer 124 plated on the upper surface of the glass plate 125. The indium tin oxide (ITO) is a transparent conductive material. The sprinkler has a spacer layer 126; another transparent PET plate 121 'is also plated with an IT0 layer 122 on the lower surface, the PET plate 121 and the glass plate 125 are bonded with double-sided adhesive, and the PET plate Between the plate 1 2 1 and the glass plate 1 2 5 there is a supporting particle layer 1 2 6. The 4 I scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) _ ---- (Please read the precautions on the back before filling in the columns on this page) Suspect -----, Yiding- -------- Lu · 574515 A7 B7 V. Description of the invention (2) ~ In use, if the PET board 1 2 1 is subjected to pressure at a certain point, the IT 0 layer 1 2 2 and IT at this point The 0 layer 1 2 4 contacts to form a current path, and an electronic signal showing the force point of π can be transmitted for input signals. The touch module 120 is also attached to the front light board 30 or the housing i 00 with double-sided tape. Wei Wu Due to the design of previous touch panels, as mentioned above, the number of layers is quite large, and the reduction in thickness has its limitations. It is very difficult to reduce the thickness of the original device design. Therefore, another device design is needed to effectively reduce the thickness and weight. The inventor, because of this, is in the spirit of active invention, although he thinks of a "touch panel with front light plate function and its manufacturing method that can solve the above problems." "After several research experiments, we finally completed this invention that benefited the world. [Summary of the present invention] The main purpose of the present invention is to provide a touch panel with a front light plate function, which can combine the functions of the touch panel and the front light plate, and reduce the thickness of the touch panel, reduce weight, and improve Screen brightness. Another object of the present invention is to provide a method for manufacturing a touch panel with a front light plate function, which can manufacture a touch panel with low thickness and light weight. In order to achieve the above-mentioned object, the present invention relates to a touch panel with a front light plate function, and is used with a display panel, including: a transparent upper plate thereof is located above a surface of the display panel; a light guide function The "lower substrate" is located between the upper substrate and the display panel; a first transparent conductive layer is located on one surface of the upper substrate and interposed between the upper substrate and the _____ 5 This paper size is applicable to the country of China Standard (CNS) A4 specification (210X297mm) '------ (Please read the precautions on the back before filling in the columns on this page) Lin, Yiding% · 5. Description of the invention (3) Between the substrates A second transparent conductive layer is located on a surface of the lower substrate and interposed between the upper substrate and the lower substrate; wherein the distance between the first transparent conductive layer and the display panel is greater than the second transparent layer The distance between the conductive layer and the maxillofacial panel, and a spacer layer are located between the first transparent conductive layer and the second transparent conductive layer. In addition, the method for manufacturing a touch panel with a front light plate function of the present invention includes a .k-substrate with a light guide function, forming a second transparent conductive layer on the surface of the lower substrate; and providing a transparent upper substrate on the A first transparent conductive layer is formed on the surface of the upper substrate; a spacer is sprayed on the surface of the lower substrate on which the second transparent conductive layer has been formed to form a support particle layer, or the upper substrate on which the first transparent conductive layer has been formed Spread support spacer B on the surface to form a supporting granular layer; and connect the upper substrate on which the first transparent conductive layer has been formed with the lower substrate on which the second transparent conductive layer has been formed =: so that the supporting granular layer is located in the Between the upper substrate and the lower substrate, and the first transparent conductive layer and the second transparent conductive layer are both located between the upper substrate and the lower substrate. 〈Since the present invention does have an enhanced effect, an invention patent is requested in accordance with the law. [Schematic explanation] Figure 1 is a schematic cross-sectional view of a conventional technique. Figure 2 is a schematic sectional view of the present invention. [Illustration of drawing number] 100 housing 1 10 light source 574515 A7 ___ Β7_ V. Description of the invention (4) 120 Touch panel module 121 PET board 122 Indium tin oxide (ITO) layer 123 Gap 124 Indium tin oxide (ITO) layer 12 5 Glass plate 126 Spacer 130 Front light plate 14 0 Gap 150 LCD panel 2 00 Housing 2 10 Light source 2 2 0 Touch panel module 221 PET plate 222 Tin oxide (ITO) layer 223 Gap 224 Indium Tin oxide (ITO) layer 225 spacer 23 0 light guide plate 2 4 0 liquid crystal display panel [detailed description of the preferred embodiment] The touch panel with front light plate function of the present invention is matched with a display panel ' Package · A transparent upper substrate is located above one of the surfaces of the display panel; a lower substrate with a light guide function is located between the upper substrate and the display panel; a first transparent conductive layer is located on one of the upper substrates On the surface, between the upper substrate and the lower substrate; a second transparent conductive layer on one surface of the lower substrate and interposed between the upper substrate and the lower substrate; wherein the first The transparent conductive layer and the display The distance between the display panel is greater than the distance between the second transparent conductive layer and the display panel; and a spacer -t __ _ 7 This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) '' a " '-(Please read the notes on the back before filling in the columns on this page) Γ • m I tm —ϋ In mn ^-i-ϋ ^^ 1 Hi ^^ 1 ^^ 1 ^^ 1 m I— II-ΰ 5. Description of the invention (5) The layer 'is located in the first-transparent layer: The invention is: electric: Γ between the second transparent conductive layer. In consideration of the panel (the type of TFT τ is not limited, and liquid crystal D is preferred). There is no limitation on the material of the transparent upper substrate, and there is no limitation on the material of the substrate under the preferred function, preferably a glass 5-door knife. The foundation groove structure with light guide function or has a convex shape, the main frame has a surface broken surface shape is not limited, compared with the core light guide function, the substrate section μ, 4 has-wedge or rectangular cross section; The method for forming the micro-groove structure is not limited, and it is preferably formed by etching, cutting, cutting, forming, or attaching a micro-groove film. The material of the first transparent electric layer and the second transparent conductive layer is not limited, and it is preferably indium tin oxide (ITO). The method for forming the transparent conductive material layer on the substrate is unlimited, and it is preferably formed by deposition, coating, or evaporation. The support particle layer may be formed on the upper substrate having the transparent conductive material f, or on the lower substrate plated with the transparent conductive material. There are no restrictions on the type of light source used in this device, preferably a light emitting diode (LED) or a cold cathode fluorescent lamp (CcFL). In order to make your reviewing committee better understand the technical content of the present invention, the preferred embodiments are described below. However, this embodiment is merely an example for convenience: the scope of the rights claimed by the present invention should be based on the scope of the patent application, but not limited to this embodiment. Please refer to item 2 and item 2 and the schematic cross-section of the present invention (it is not shown according to the actual size ratio). Above the TFT-LCD 240 is a touch panel module 22 with a front light plate function, which includes a transparent upper substrate (PET plate) 221, a polymer lower substrate 23 with light guiding function, and a first transparent conductive material. Material layer (ITO layer) 222, the second transparent conductive material layer (IT0__ 8 paper size Gu Jinxian Jiaxin (CNS) A4 size (210X297 mm) 574515 5. Description of the invention (layer) 224 to 5) — + 4 ^ >^^^; i (spacer) layer 225 ◦ The transparent upper substrate (PET board) 221 'is located above one of the surfaces of the display panel 24; The (Please read the precautions on the back before filling Each block on this page) has a light guide function < South molecular lower substrate 23, is located between the upper substrate 221 and the display panel 240, the thickness of the polymer lower substrate with light guide function ..., restrictions, this The different embodiment is 1 soil 0.3. The first transparent conductive material layer (ITO layer) 222 is located on one surface of the upper substrate 221 and interposed between the upper substrate 221 and the lower substrate 230; Two transparent conductive layers (IT0 layer) 224 are deposited on one surface of the lower substrate 230; Sun Zhi A spacer layer 225 is located between the first IT0 layer 222 and the second ITO layer 224. The spacer layer 225 is formed on the lower substrate 23 in this embodiment. In this embodiment, the upper substrate 221 is bonded and assembled with the lower substrate 23 by double-sided tape. The manufacturing method of the touch panel with the function of a light plate according to the present invention is to provide a lower substrate 23 with a light guide function ( ), The lower substrate 230 with light guiding function is formed by laminating a micro-groove film on the polymer lower substrate, and the reading micro-groove angle, depth and pitch are based on the required optical characteristics, pixel size and The arrangement of pixels is different. Generally, under the condition of fixed pixel size, the micro-groove spacing is a fixed 値, and the angle and depth of the micro-grooves can be variable to obtain better brightness, contrast, and uniformity. Optical properties such as degree. In one embodiment, the pitch of the microgrooves is, for example, a fixed 0.15 mm, and the depth of the micro grooves may be 0.0 05 mm to 0.020 mm. Then, the surface of the lower substrate 230 is plated IT0 layer 224. In addition, a transparent upper substrate (PET board) 221 is provided. The upper substrate 221 is plated with an ITO layer 222; then on the surface of the lower substrate 23 where the ITO layer 224 has been formed, the paper size applies the Chinese National Standard (CNS) A4 specification (210X297 public director) 574515 A7 B7 V. Description of invention (7) (Please read the precautions on the back before filling in the columns on this page.) Spread support spacers to form the support particle layer 225. Finally, the upper substrate 221 that has formed the ITO layer 222 and the IT that has been formed Layers 224 to 4 of the lower substrate 2 3 0 are combined, and the supporting granular layer 2 2 5 is located between the upper substrate 221 and the lower substrate 23 °, and the Iτ〇 layer 222 and the ιτ〇 layer 2 2 4 are both located in the Between the upper substrate 2 2 1 and the lower substrate 2 3 0. As shown in FIG. 2, when light enters the light from the side of the lower substrate 2 3 0, it will be reflected downward by the micro groove, change the direction of travel, and then be reflected to the display area through the display panel 240. At the same time, because I τ 〇 has a conductive function, when the touch panel is subjected to pressure at a certain point, the ITO 0 layer 2 2 2 is in contact with the ITO layer 2 24 plated on the child substrate 230 to form a current path. The electronic signal of the stress point is transmitted. Therefore, the device combines the light panel and the touch panel before the original separation to form a touch panel with a front light function. From the comparison between Fig. 1 and Fig. 2, it is known that the touch panel of the conventional technique has a high thickness and weight, and the light must pass through a front light plate, a glass plate, a PET plate, a two-layer IT0 layer, and a two-layer gap. Reaching the eyes of the user 'The light loss is large. However, the present invention directly plated the ITQ layer 1 2 4 in the first figure on the front light plate, thereby reducing the thickness of the glass plate 1 2 5 and the gap 140, greatly reducing Control panel thickness and weight. At the same time, as the number of interfaces through which light penetrates is reduced, the loss is also reduced, and the brightness of the display panel is greatly improved. The invention further simplifies the original production technology and is more suitable for mass production. At the same time, it has the advantages of reducing thickness, weight and improving display brightness. It is a breakthrough in the existing technology. This paper scale is applicable to China National Standard (CNS) A4 specification (210X297 mm) 574515 A7 B7 V. Description of the invention (8) The above embodiments are just examples for the convenience of explanation. The scope of the claimed rights of the present invention shall be as described in the scope of patent application. It is not limited to the above embodiments. (Please read the notes on the back before filling in the columns on this page). Prayer Order --------- Every! 11 This paper size applies to China National Standard (CNS) A4 (210X297 mm)