1355765 100年10月27日按正替换頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種觸摸屏及使用該觸摸屏的顯示裝置，尤 其涉及一種基於奈米碳管的觸摸屏及使用該觸摸屏的顯 示裝置。 【先前技術】 [0002] 近年來，伴隨著移動電話與觸摸導航系統等各種電子設 備的高性能化和多樣化的發展，在液晶等顯示元件的前 面安裝透光性的觸摸屏的電子設備逐步增加。這樣的電 子設備的利用者通過觸摸屏，一邊對位於觸摸屏背面的 顯示元件的顯示内容進行視覺確認，一邊利用手指或筆 等方式按壓觸摸屏來進行操作。由此，可以操作電子設 備的各種功能。 [0003] 按照觸摸屏的工作原理和傳輸介質的不同，先前的觸摸 屏通常分爲四種類型，分別爲電阻式、電容感應式、紅 外線式以及表面聲波式。其中電阻式觸摸屏的應用最爲 廣泛，請參見文獻 “Production of Transparent Conductive Filins with Inserted Si〇2Anchor Layer, and Application to a Resistive Touch Panel” Kazuhiro Noda, Kohtaro Taniraura. Electronics and Communications in Japan, Part 2， Vol.84， P39-45(2001)。 [0004] 先前的電阻式觸摸屏一般包括一上基板，該上基板的下 表面形成有一上透明導電層；一下基板，該下基板的上 表面形成有一下透明導電層；以及多個點狀隔離物（Dot 096149379 表單编號A0101 第4頁/共25頁 1003398735-0 1.355765 100年.10月27日梭正替換頁1355765 October 27, 100, according to the replacement page, the invention description: [Technical Field] [0001] The present invention relates to a touch screen and a display device using the same, and more particularly to a carbon nanotube-based touch screen and A display device using the touch screen. [Prior Art] [0002] In recent years, with the development of high performance and diversification of various electronic devices such as mobile phones and touch navigation systems, electronic devices in which a translucent touch panel is mounted in front of display elements such as liquid crystals are gradually increasing. . The user of such an electronic device operates by pressing the touch panel with a finger or a pen while visually checking the display content of the display element located on the back surface of the touch panel via the touch panel. Thereby, various functions of the electronic device can be operated. [0003] According to the working principle of the touch screen and the transmission medium, the prior touch screens are generally divided into four types, namely, resistive, capacitive sensing, infrared, and surface acoustic wave. Among them, the resistive touch screen is the most widely used, please refer to the document "Production of Transparent Conductive Filins with Inserted Si〇2Anchor Layer, and Application to a Resistive Touch Panel" Kazuhiro Noda, Kohtaro Taniraura. Electronics and Communications in Japan, Part 2, Vol .84, P39-45 (2001). [0004] A conventional resistive touch screen generally includes an upper substrate having an upper transparent conductive layer formed on a lower surface thereof, a lower substrate having a lower transparent conductive layer formed on an upper surface thereof, and a plurality of dot spacers (Dot 096149379 Form No. A0101 Page 4 / Total 25 Page 1003398735-0 1.355765 100 years. October 27th Shuttle replacement page
Spacer)設置在上透明導電層與下透明導電層之間。其中 ，該上透明導電層與該下透明導電層通常採用具有導電 特性的銦錫氧化物（Indium Tin Oxide, ΙΤ0)層（下稱 IT0層）。當使用手指或筆按壓上基板時，上基板發生扭 曲，使得按壓處的上透明導電層與下透明導電層彼此接 觸。通過外接的電子電路分別向上透明導電層與下透明 導電層依次施加電壓，觸摸屏控制器通過分別測量第一 導電層上的電壓變化與第二導電層上的電壓變化，並進 行精確計算，將它轉換成觸點坐標。觸摸屏控制器將數 字化的觸點坐標傳遞給中央處理器。中央處理器根據觸 點坐標發出相應指令，啓動電子設備的各種功能切換， 並通過顯示器控制器控制顯示元件顯示。 [0005] 然而，ΙΤ0層作爲透明導電層通常採用離子束濺射或蒸鍍 等工藝製備，在製備的過程，需要較高的真空環境及需 要加熱到200〜300°C，因此，使得IT0層的製備成本較高 。此外，IT0層作爲透明導電層具有機械性能不够好、難 以彎曲及阻值分布不均勻等缺點。另外，IT0在潮濕的空 氣中透明度會逐漸下降。從而導致先前的電阻式觸摸屏 及顯示裝置存在耐用性不够好，靈敏度低、線性及準確 性較差等缺點。 [0006] 有鑒於此，確有必要提供一種耐用性好，且靈敏度高、 線性及準確性强的觸摸屏及顯示裝置。 【發明内容】 [0007] —種觸摸屏，包括：一第一電極板，該第一電極板包括 一第一基體及一第一導電層設置在該第一基體的下表面 096149379 表單編號A0101 第5頁/共25頁 1003398735-0 1355765 100年10月27日核正替換頁 :以及一第二電極板，該第二電極板與第一電極板間隔 設置，該第二電極板包括一第二基體及一第二導電層設 置在該第二基體的上表面；其中，上述第一導電層和第 二導電層中的至少一個導電層包括至少兩個重叠且交叉 設置的奈米碳管層，每一奈米碳管層包括多個定向排列 的奈米碳管，且相鄰的兩個奈米碳管層中的奈米碳管沿 不同方向排列。 [0008] 一種顯示裝置，包括：一觸摸屏，該觸摸屏包括一第一 電極板及一第二電極板，該第一電極板包括一第一基體 及一第一導電層設置在該第一基體的下表面，該第二電 極板與第一電極板間隔設置，且包括一第二基體及一第 二導電層設置在該第二基體的上表面；及一顯示設備， 該顯示設備正對且靠近上述觸摸屏的第二電極板設置； 其中，上述第一導電層和第二導電層中的至少一個導電 層包括至少兩個重叠且交又設置的奈米碳管層，每一奈 米碳管層包括多個定向排列的奈米碳管，且相鄰的兩個 奈米碳管層中的奈米碳管沿不同方向排列。 [0009] 本技術方案實施例提供的採用至少兩個重叠且交叉設置 的奈米碳管層作爲透明導電層的觸摸屏及顯示裝置具有 以下優點：其一，由於奈米碳管具有優異的力學性能， 則由定向排列的奈米碳管組成的單個奈米碳管層具有較 好的韌性及機械强度，則該至少兩個重叠且交又設置的 奈米碳管層具有更加優異的韌性及機械强度，採用該至 少兩個重叠且交叉設置的奈米碳管層作透明導電層，可 以相應的提高觸摸屏的耐用性，進而提高使用該觸摸屏 096149379 表單编號A0101 第6頁/共25頁 1003398735-0 1355765 [0010] [0011] [0012] 100年.10月27日 的顯不裝置的对用性；其二’由於奈米碳管具有優異的 導電性能》則由定向排列的奈米碳管組成的奈米碳管層 具有均勻的阻值分布，因而，採用上述重叠且交叉設置 的至少兩層奈米碳管層作翻導電層，可以相應的提高 觸摸屏及顯示裝置的分辨率和精確度。 【實施方式】 以下將結合附圖詳細說明本技術方案提供的觸摸屏及顯 示裝置。 請參閱圖1及圖2，本技術方案實施例提供一種觸摸屏1〇 ，該觸摸屏10包括一第一電極板12，一第二電極板14以 及設置在第一電極板12與第二電極板14之間的多個透明 點狀隔離物16 » 該第一電極板12包括一第一基體12〇，一第一導電層122 以及兩個第一電極124。該第一基體12〇爲平面結構，該 第一導電層122與兩個第一電極124均設置在第一基體 120的下表面。兩個第一電極124分別設置在第一導電層 122沿第一方向的兩端並與第一導電層122電連接。該第 二電極板14包括一第二基體14〇，一第二導電層142以及 兩個第二電極144。該第二基體140爲平面結構，該第二 導電層142與兩個第二電極144均設置在第二基體14〇的 上表面。兩個第二電極144分別設置在第二導電層142沿 第二方向的兩端並與第二導電層142電連接。該第一方向 垂直於該第二方向，即兩個第一電極124與兩個第二電極 144正交設置。其中，該第一基體120爲透明的且具有一 定柔軟度的薄膜或薄板，該第二基體14〇爲透明基板該 096149379 表單编號A0101 第7頁/共25頁 1003398735-0 1355765 1100年10月27日梭正_頁| 第二基體140的材料可選擇爲玻璃、石英、金剛石及塑料 等硬性材料或柔性材料。所述第二基體140主要起支撑的 作用5亥第一電極124與該第二電極144的材料爲金屬、 奈米碳官薄膜或其他導電材料’只要確保導電性即可。 本實施例中，該第-基體120材料爲聚酷膜，該第二基體 140爲破螭基板，該第一電極124與第二電極144爲導電 的銀聚層。 [0013] 進一步地，該第二電極板14上表面外圍設置有一絕緣層 18。上述的第一電極板12設置在該絕緣層18上，且該第 一電極板12的第一導電層122正對第二電極板14的第二導 電層142設置。上述多個透明點狀隔離物16設置在第二電 極板14的第二導電層142上，且該多個透明點狀隔離物16 彼此間隔設置《第一電極板12與第二電極板14之間的距 離爲2~ 10微米《該絕緣層18與透明點狀隔離物16均可採 用絕緣透明樹脂或其他絕緣透明材料製成。設置絕緣層 18與點狀隔離物16可使彳于第一電極板14與第二電極板12 電絕緣。可以理解，當觸摸屏10尺寸較小時，點狀隔離 物16爲可選擇的結構’只需確保第一電極板14與第二電 極板12電絕緣即可。 [0014] 另外，該第一電極板12上表面可進一步設置一透明保護 膜126，該透明保護膜126可由氮化矽、氧化妙、笨丙環 丁烯（BCB)、聚酯以及丙烯酸樹脂等材料形成。該透明伴 護膜126也可採用一層表面硬化處理、光滑防刮的塑料層 ，如聚對苯二甲酸乙二醇酯（PET)膜，用於保護第—電 極板12，提高耐用性。該透明保護膜126還可用於提佴一 096149379 表單编號A0101 第8頁/共25頁 1003398735-0 [0015]1355765 些其它的附加功能，如可以减少眩光或降- β玄第導电層122與第二導電層丄42中的至少一個導電詹 包括至少兩個重叠且交又設置的奈米碳管層，每—奈米 碳管層包括多個定向排列的奈米碳管，且相鄰的兩個奈 米竣管層巾的奈米碳管沿不同方向排列^該奈米碳管層 爲-奈米碳管薄膜或平行且無間隙舖設的多個奈来碳管 薄膜。相鄰的奈米碳管層之間通過凡德瓦爾力緊密結合 。該奈米碳f薄膜進一步包括多値奈米碳管束片段每 個奈米碳管束片段具有大致㈣的長度且每個奈米碳管 束片段由多個相互平行的奈米碳管束構成，所述多個奈 米碳管束片段兩端通過凡德瓦爾力相互連接。由於奈米 碳管層可由多個奈米碳管薄膜平行且無間隙的鋪設，故 4奈求碳官層的長度及寬度不限，可根據實際需求製備 。上述第-導電層122與第二導電層中的奈米碳管層的層 數不限，所述相鄰兩個奈米碳管層中的奈米碳管的排列 方向具有-交叉角度α，0<α 90度’具體可依據實際 而求製備。該奈米碳管薄膜的厚度爲〇. 5納米〜1〇〇微米。 本技術方案實施例中，該第一導電層122與第二導電層 142均包括重叠且交叉設置的2個奈米碳管層，相鄰兩個 奈米碳管層中的奈米碳管之間交又的角度爲9〇度。該奈 米碳管層的長度爲30厘米，該奈米碳管層的寬度爲3〇厘 米’該奈米碳管層的厚度爲10微米。 [0016] 本實施例第-導電層122和/或第二導電層142中的奈米碳 管薄膜的製備方法主要包括以下步驟： 步驟一：提供一奈米碳管陣列，優選地，該陣列爲超順 096149379 1003398735-0 表單編號Α0101 第9頁/共25頁 [0017] 1355765 100年.10月27日按正替換頁 排奈米碳管陣列。 [0018] 本技術方㈣㈣提供的奈米碳管㈣爲單壁奈米碳管 陣列、雙壁奈米碳管陣列或多壁Μ碳管陣列。本實施 例中，超順排奈米碳管陣_製備方法制化學氣相沈 積法，其《轉包括：（a)提供—平整基底，該基底 可選^型«_基底’或選用形成有氧化層的石夕基底 ，本實施例優選爲採用4英寸的石夕基底；⑴在基底表 面均勾形成-催化懸，該觀麟㈣可選錢… )、钻（Co) '錄（Ni)或其任意組合的合金之一；& )將上述形成有催化劑層的基底在7〇〇 9〇〇(>c 的空氣中退 火約30分知〜90分鐘，（〇將處理過的基底置於反應爐 中’在保護氣體環境下加熱到5〇〇 74(rc，然後通入碳源 氣體反應約5〜3G分鐘，生長得到超順排奈来碳管陣列， 其南度爲200〜400微米。該超順排奈米碳管陣列爲多個彼 此平行且垂直於基底生長管形_純奈米碳管 陣列。通過上述控制生長條件，該超順排奈米碳管陣列 中基本不含有雜質’如無”碳或殘㈣催化劑金屬顆 粒等。該奈米碳管陣列中的奈米碳管彼此通過凡德瓦爾 力緊密接獅成陣列。該奈米碳管陣列與上述基底面積 基本相同6 [0019] 本實施例中碳源氣可選用乙块、乙稀、甲料化學性質 較活潑的碳氫化合物，本實施例優選的碳源氣爲乙快； 保護氣體爲減或祕氣體，本實施例優選的保護氣體 爲鼠氣* [0020] 096149379 可以理解， 表單編號A0101 本實施例提供的奈米碳管陣列不限於上述製 第丨0頁/共25頁 1003398735-0 1355765 100年.10月27日修正替换頁 備方法。也可爲石墨電極恒流電弧放電沈積法、雷射蒸 發沈積法等。 [0021] 步驟二：採用一拉伸工具從奈米碳管陣列中拉取獲得一 奈米碳管薄膜。其具體包括以下步驟：（a)從上述奈米 碳管陣列中選定一定寬度的多個奈米碳管片斷，本實施 例優選爲採用具有一定寬度的膠帶接觸奈米碳管陣列以 選定一定寬度的多個奈米碳管片斷；（b)以一定速度沿 基本垂直於奈米碳管陣列生長方向拉伸該多個奈米碳管 片斷，以形成一連續的奈米碳管薄膜。 [0022] 在上述拉伸過程中，該多個奈米碳管片段在拉力作用下 沿拉伸方向逐漸脫離基底的同時，由於凡德瓦爾力作用 ，該選定的多個奈米碳管片斷分別與其它奈米碳管片斷 首尾相連地連續地被拉出，從而形成一奈米碳管薄膜。 該奈米碳管薄膜包括多個首尾相連且定向排列的奈米碳 管束。該奈米碳管薄膜中奈米碳管的排列方向基本平行 於奈米碳管薄膜的拉伸方向。 [0023] 取上述製備的兩個奈米碳管薄膜分別作一奈米碳管層， 即每一奈米碳管層包括一個奈米碳管薄膜。重叠且交叉 設置上述的兩個奈米碳管層，幷使得到上述兩個奈米碳 管層中的定向排列的奈米碳管之間具有一交叉角度α， 0< a 90s。可以理解，由於奈米碳管薄膜中奈米碳管的 排列方向基本平行於奈米碳管薄膜的拉伸方向，故，可 以使得上述的兩個奈米碳管層之間的奈米碳管成一交叉 角度α設置。 096149379 表單編號Α0101 第11頁/共25頁 1003398735-0 1355765 100年.10月2’7日梭正替換頁 [0024] 清參閱圖3 ^ s玄奈求碳官薄膜爲擇優取向排列的多個奈未 碳管束首尾相連形成的具有一定寬度的奈米碳管薄膜。 該奈米碳管薄膜中奈米碳管的排列方向基本平行於奈米 碳管薄膜的拉伸方向。該直接拉伸獲得的擇優取向的奈 米碳管薄膜比無序奈米碳管薄膜具有更好的均勻性，即 具有更均勻的厚度以及具有更均勻的導電性能。同時該 直接拉伸獲得奈米碳管薄膜的方法簡單快速，適宜進行 工業化應用。 [0025] 本實施例中，該奈米碳管薄膜的寬度與奈米碳管陣列所 生長的基底的尺寸有關，該奈米碳管薄膜的長度不限， 可根據實際需求製得。該奈米碳管薄膜的厚度爲0. 5奈米 〜100微米。當該奈米碳管薄膜中的奈米碳管爲單壁奈米 碳管時，該單壁奈米碳管的直徑爲0. 5奈米〜50奈米。當 該奈米碳管薄膜中的奈米碳管爲雙壁奈米碳管時，該雙 壁奈米碳管的直徑爲1.0奈米〜50奈米。當該奈米碳管薄 膜中的奈米碳管爲多壁奈米碳管時，該多壁奈米碳管的 直控爲1. 5奈米〜50奈米。 [0026] 可以理解，由於本實施例超順排奈米碳管陣列中的奈米 碳管非常純淨，且由於奈米碳管本身的比表面積非常大 ，故該奈米碳管薄膜本身具有較强的粘性。因此，該奈 米碳管薄膜作爲第一導電層122與第二導電層142時可直 接粘附在第一基體120或第二基體140上。 [0027] 另外，可使用有機溶劑處理上述粘附在第一基體120或第 二基體140上的奈米碳管薄膜。具體地，可通過試管將有 機溶劑滴落在奈米碳管薄膜表面浸潤整個奈米碳管薄膜 096149379 表單編號A0101 第12頁/共25頁 1003398735-0 1.355765 100年.10月27日梭正替換頁 。該有機溶劑爲揮發性有機溶劑，如乙醇、曱醇、丙酮 、二氣乙烷或氣仿，本實施例中採用乙醇。該奈米碳管 薄膜經有機溶劑浸潤處理後，在揮發性有機溶劑的表面 張力的作用下，該奈米碳管薄膜可牢固地貼附在基體表 面，且表面體積比减小，粘性降低，具有良好的機械强 度及勃性。 [0028] 此外，可選擇地，爲了减小由顯示設備産生的電磁干擾 ，避免從觸摸屏10發出的信號產生錯誤，還可在第二基 體140的下表面上設置一屏蔽層（圖未示）。該屏蔽層可 由銦錫氧化物（I TO)薄膜、銻錫氧化物（ΑΤΟ)薄、鎳 金薄膜、銀薄膜膜或奈米碳管薄膜等導電材料形成。本 實施例中，所述的屏蔽層包含一奈米碳管薄膜，該奈米 碳管薄膜中的奈米碳管的排列方式不限，可爲定向排列 也可爲其它的排列方式。本實施例中，該屏蔽層中的奈 « 米碳管定向排列。該奈米碳管薄膜作爲電接地點，起到 屏蔽的作用，從而使得觸摸屏10能在無干擾的環境中工 作。 [0029] 請參閱圖4，本技術方案實施例還提供一使用上述觸摸屏 10的顯示裝置100，其包括上述觸摸屏10及一顯示設備 20。該顯示設備20正對且靠近上述觸摸屏10的第二電極 板14設置。該觸摸屏10可以與該顯示設備20間隔一預定 距離設置，也可集成在該顯示設備20上。當該觸摸屏10 與該顯示設備20集成設置時，可通過黏著劑將該觸摸屏 10附著到該顯示設備20上。 [0030] 本技術方案顯示設備20可以爲液晶顯示器、場發射顯示 096149379 表單編號Α0101 第13頁/共25頁 1003398735-0 1355765 100年.10月27日梭正替換頁 器、f漿顯示器、電致發光顯示器、真空螢光顯示器及 陰極射線管等顯示設備。 [0031] 進一步地，當在該觸摸屏10第二基體140的下表面上設置 一屏蔽層22時，可在該屏蔽層22遠離第二基體140的表面 上設置一鈍化層24，該鈍化層24可由氮化矽、氧化矽等 材料形成。該鈍化層24與顯示設備20的正面間隔一間隙 26設置。該鈍化層24作爲介電層使用，且保護該顯示設 備20不致於由於外力過大而損壞。 [0032] 另外，該顯示裝置100進一步包括一觸摸屏控制器30、一 中央處理器40及一顯示設備控制器50。其中，該觸摸屏 控制器30、該中央處理器40及該顯示設備控制器50三者 通過電路相互連接，該觸摸屏控制器30與該觸摸屏20電 連接，該顯示設備控制器50與該顯示設備20電連接。該 觸摸屏控制器30通過手指等觸·摸物60觸摸的圖標或選單 位置來定位選擇訊息輸入，並將讓訊息傳遞給中央處理 器40。該中央處理器40通過該顯示器控制器50控制該顯 示元件20顯示。 [0033] 使用時，第一電極板12之間與第二電極板14之間分別施 加5V電壓。使用者一邊視覺確認在觸摸屏10下面設置的 顯示元件20的顯示，一邊通過觸摸物60如手指或筆按壓 觸摸屏10第一電極板12進行操作。第一電極板12中第一 基體120發生彎曲，使得按壓處70的第一導電層122與第 二電極板14的第二導電層142接觸形成導通。觸摸屏控制 器30通過分別測量第一導電層122第一方向上的電壓變化 與第二導電層142第二方向上的電壓變化，並進行精確計 096149379 表單编號A0101 第14頁/共25頁 1003398735-0 1.355765 100年.10月2>日修正替換頁 算，將它轉換成觸點坐標。觸摸屏控制器30將數字化的 觸點坐標傳遞給中央處理器40。中央處理器40根據觸點 坐標發出相應指令，啓動電子設備的各種功能切換，並 通過顯示器控制器50控制顯示元件20顯示。 [0034] 本技術方案實施例提供的採用至少兩個重叠且交叉設置 的奈米碳管層作爲透明導電層的觸摸屏及顯示裝置具有 以下優點：其一，由於奈米碳管具有優異的力學性能， 則由定向排列的奈米碳管組成的單個奈米碳管層具有較 好的韌性及機械强度，則該至少兩個重叠且交又設置的 奈米碳管層具有更加優異的韌性及機械强度，採用該至 少兩個重叠且交叉設置的奈米碳管層作透明導電層，可 以相應的提高觸摸屏的耐用性，進而提高使用該觸摸屏 的顯示裝置的耐用性；其二，由於奈米碳管具有優異的 導電性能，則由定向排列的奈米碳管組成的奈米碳管層 具有均勻的阻值分布，因而，採用上述重叠且交叉設置 的至少兩層奈米碳管層作透明導電層，可以相應的提高 觸摸屏及顯示裝置的分辨率和精確度。 [0035] 綜上所述，本發明確已符合發明專利之要件，遂依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施例 ，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0036] 圖1係本技術方案實施例觸摸屏的立體結構示意圖。 [0037] 圖2係本技術方案實施例觸摸屏的側視結構示意圖。 096149379 表單編號 A0101 第 15 頁/共 25 頁 1003398735-0 1355765 100年.10月27日按正替換頁 [0038] 圖3係本技術方案貫施例觸摸屏中奈求碳官博膜的扣'描電 鏡照片。 [0039] 圖4係本技術方案實施例顯示裝置的側視結構示意圖。 【主要元件符號說明】 [0040] 觸摸屏：10 [0041] 第一電極板：12 [0042] 第二電極板：14 [0043] 點狀隔離物：16 [0044] 絕緣層：18 [0045] 第一基體：120 [0046] 第一導電層：122 [0047] 第一電極：124 [0048] 第二基體：140 [0049] 第二導電層：.142 [0050] 第二電極：144 [0051] 透明保護膜：126 [0052] 顯示裝置：100 [0053] 顯示設備：20 [0054] 觸摸屏控制器：30 [0055] 中央處理器：40 表單编號A0101 096149379 第16頁/共25頁 1003398735-0 100年.10月2'7日按正替換頁 1.355765 [0056] 顯示設備控制器：50 [0057] 觸摸物：60 [0058] 按壓處：70 [0059] 屏蔽層：22 [0060] 鈍化層：24 ' [0061]間隙：26 096149379 表單編號A0101 第17頁/共25頁 1003398735-0Spacer) is disposed between the upper transparent conductive layer and the lower transparent conductive layer. The upper transparent conductive layer and the lower transparent conductive layer are usually made of an indium tin oxide (ITO) layer (hereinafter referred to as an IT0 layer) having a conductive property. When the upper substrate is pressed with a finger or a pen, the upper substrate is twisted such that the upper transparent conductive layer and the lower transparent conductive layer at the pressing portion are in contact with each other. The voltage is sequentially applied to the upper transparent conductive layer and the lower transparent conductive layer through the external electronic circuit, and the touch screen controller measures the voltage change on the first conductive layer and the voltage change on the second conductive layer, respectively, and performs accurate calculation. Convert to contact coordinates. The touch screen controller passes the digitized contact coordinates to the central processor. The central processor issues corresponding commands according to the coordinates of the touch points, initiates various function switching of the electronic device, and controls display of the display elements through the display controller. [0005] However, the ΙΤ0 layer is generally prepared by a method such as ion beam sputtering or evaporation, and a high vacuum environment is required in the preparation process and heating to 200 to 300 ° C is required, thereby making the IT0 layer The preparation cost is higher. In addition, the IT0 layer as a transparent conductive layer has disadvantages such as insufficient mechanical properties, difficulty in bending, and uneven distribution of resistance values. In addition, the transparency of IT0 will gradually decrease in humid air. As a result, the prior resistive touch screens and display devices have disadvantages such as insufficient durability, low sensitivity, linearity, and poor accuracy. [0006] In view of this, it is indeed necessary to provide a touch screen and a display device which are durable, high in sensitivity, linear and accurate. SUMMARY OF THE INVENTION [0007] A touch screen includes: a first electrode plate, the first electrode plate includes a first substrate and a first conductive layer disposed on the lower surface of the first substrate 096149379 Form No. A0101 No. 5 Page / Total 25 pages 1003398735-0 1355765 October 27, 100 nuclear replacement page: and a second electrode plate, the second electrode plate is spaced apart from the first electrode plate, the second electrode plate includes a second substrate And a second conductive layer is disposed on the upper surface of the second substrate; wherein at least one of the first conductive layer and the second conductive layer comprises at least two overlapping and intersecting carbon nanotube layers, each The carbon nanotube layer comprises a plurality of aligned carbon nanotubes, and the carbon nanotubes in the adjacent two carbon nanotube layers are arranged in different directions. [0008] A display device includes: a touch screen, the touch screen includes a first electrode plate and a second electrode plate, the first electrode plate includes a first substrate and a first conductive layer disposed on the first substrate a lower surface, the second electrode plate is spaced apart from the first electrode plate, and includes a second substrate and a second conductive layer disposed on an upper surface of the second substrate; and a display device, the display device is facing and close The second electrode plate of the touch panel is disposed; wherein at least one of the first conductive layer and the second conductive layer comprises at least two overlapping and disposed carbon nanotube layers, each of the carbon nanotube layers A plurality of aligned carbon nanotubes are included, and the carbon nanotubes in the adjacent two carbon nanotube layers are arranged in different directions. [0009] The touch screen and the display device using the at least two overlapping and intersecting carbon nanotube layers as the transparent conductive layer provided by the embodiments of the present technical solution have the following advantages: First, the carbon nanotubes have excellent mechanical properties. The single carbon nanotube layer composed of the aligned carbon nanotubes has good toughness and mechanical strength, and the at least two overlapping and disposed carbon nanotube layers have more excellent toughness and mechanical properties. The strength, using the at least two overlapping and intersecting carbon nanotube layers as the transparent conductive layer, can correspondingly improve the durability of the touch screen, thereby improving the use of the touch screen 096149379 Form No. A0101 Page 6 / Total 25 Page 1003398735- [0012] [0012] [0012] 100 years. October 27th, the compatibility of the display device; the second 'because of the excellent electrical conductivity of the carbon nanotubes" by the aligned carbon nanotubes The composition of the carbon nanotube layer has a uniform resistance distribution, and thus, the above-mentioned overlapping and intersecting at least two layers of carbon nanotube layers are used as the turning conductive layer, which can correspondingly improve the touch screen and display The resolution and accuracy of the device. [Embodiment] Hereinafter, a touch panel and a display device provided by the present technical solution will be described in detail with reference to the accompanying drawings. Referring to FIG. 1 and FIG. 2 , the embodiment of the present disclosure provides a touch screen 1 . The touch screen 10 includes a first electrode plate 12 , a second electrode plate 14 , and a first electrode plate 12 and a second electrode plate 14 . A plurality of transparent dot spacers 16 » The first electrode plate 12 includes a first substrate 12 , a first conductive layer 122 and two first electrodes 124 . The first substrate 12 is a planar structure, and the first conductive layer 122 and the two first electrodes 124 are disposed on the lower surface of the first substrate 120. The two first electrodes 124 are respectively disposed at both ends of the first conductive layer 122 in the first direction and are electrically connected to the first conductive layer 122. The second electrode plate 14 includes a second substrate 14A, a second conductive layer 142, and two second electrodes 144. The second substrate 140 is a planar structure, and the second conductive layer 142 and the two second electrodes 144 are disposed on the upper surface of the second substrate 14A. The two second electrodes 144 are respectively disposed at both ends of the second conductive layer 142 in the second direction and are electrically connected to the second conductive layer 142. The first direction is perpendicular to the second direction, i.e., the two first electrodes 124 are orthogonal to the two second electrodes 144. Wherein, the first substrate 120 is a transparent film or sheet having a certain softness, and the second substrate 14 is a transparent substrate. The 096149379 Form No. A0101 Page 7 / Total 25 Page 1003398735-0 1355765 October 1100 The material of the second substrate 140 may be selected from a hard material such as glass, quartz, diamond, or plastic or a flexible material. The second substrate 140 mainly serves as a supporting material. The material of the first electrode 124 and the second electrode 144 is metal, a carbon carbon film or other conductive material as long as conductivity is ensured. In this embodiment, the material of the first substrate 120 is a film, the second substrate 140 is a broken substrate, and the first electrode 124 and the second electrode 144 are conductive silver layers. [0013] Further, an insulating layer 18 is disposed on the periphery of the upper surface of the second electrode plate 14. The first electrode plate 12 is disposed on the insulating layer 18, and the first conductive layer 122 of the first electrode plate 12 is disposed opposite to the second conductive layer 142 of the second electrode plate 14. The plurality of transparent dot spacers 16 are disposed on the second conductive layer 142 of the second electrode plate 14, and the plurality of transparent dot spacers 16 are spaced apart from each other by the first electrode plate 12 and the second electrode plate 14. The distance between the two is 10 to 10 μm. The insulating layer 18 and the transparent dot spacer 16 can be made of an insulating transparent resin or other insulating transparent material. The insulating layer 18 and the dot spacers 16 are provided to electrically insulate the first electrode plate 14 from the second electrode plate 12. It will be appreciated that when the size of the touch screen 10 is small, the dot spacers 16 are of an alternative construction 'only need to ensure that the first electrode plate 14 is electrically insulated from the second electrode plate 12. [0014] In addition, a transparent protective film 126 may be further disposed on the upper surface of the first electrode plate 12. The transparent protective film 126 may be made of tantalum nitride, oxidized, propylene bromide (BCB), polyester, acrylic resin, or the like. Material formation. The transparent cover film 126 may also be provided with a surface hardened, smooth scratch-resistant plastic layer such as a polyethylene terephthalate (PET) film for protecting the first electrode plate 12 for improved durability. The transparent protective film 126 can also be used for lifting a 096149379 Form No. A0101 Page 8 / Total 25 Page 1003398735-0 [0015] 1355576 Some other additional functions, such as reducing glare or falling - β 第 导电 conductive layer 122 And at least one of the second conductive layers 42 includes at least two overlapping and disposed carbon nanotube layers, each of the carbon nanotube layers including a plurality of aligned carbon nanotubes, and adjacent The carbon nanotubes of the two nanotube tubes are arranged in different directions. The carbon nanotube layer is a carbon nanotube film or a plurality of carbon nanotube films which are laid in parallel and without gaps. Adjacent carbon nanotube layers are tightly bonded by van der Waals forces. The nano carbon f film further comprises a plurality of carbon nanotube bundle segments each having a length of (four) and each of the carbon nanotube bundle segments being composed of a plurality of mutually parallel carbon nanotube bundles, the plurality of The ends of the carbon nanotube bundle segments are connected to each other by Van der Waals force. Since the carbon nanotube layer can be laid by a plurality of carbon nanotube films in parallel and without gaps, the length and width of the carbon layer are not limited, and can be prepared according to actual needs. The number of layers of the carbon nanotube layer in the first conductive layer 122 and the second conductive layer is not limited, and the arrangement direction of the carbon nanotubes in the adjacent two carbon nanotube layers has a cross angle α. 0<α 90 degrees' can be prepared according to the actual situation. The thickness of the carbon nanotube film is 〇. 5 nm to 1 〇〇 micron. In the embodiment of the technical solution, the first conductive layer 122 and the second conductive layer 142 each include two carbon nanotube layers which are overlapped and intersected, and the carbon nanotubes in the adjacent two carbon nanotube layers The angle of intercourse is 9 degrees. The carbon nanotube layer has a length of 30 cm and the carbon nanotube layer has a width of 3 cm. The carbon nanotube layer has a thickness of 10 μm. [0016] The preparation method of the carbon nanotube film in the first conductive layer 122 and/or the second conductive layer 142 of the present embodiment mainly includes the following steps: Step 1: providing a carbon nanotube array, preferably, the array For Super Shun 096149379 1003398735-0 Form No. Α0101 Page 9 / Total 25 Pages [0017] 1355765 100 years. October 27th, replace the page with a row of carbon nanotube arrays. [0018] The carbon nanotubes (4) provided by the technical formula (4) (4) are single-walled carbon nanotube arrays, double-walled carbon nanotube arrays or multi-walled carbon nanotube arrays. In this embodiment, the super-sequential carbon nanotube array is prepared by a chemical vapor deposition method, and the "transformation includes: (a) providing a flat substrate, the substrate may be selected from a type «_base" or formed by The Shihua base of the oxide layer, in this embodiment, preferably adopts a 4-inch Shi Xi base; (1) a hook-formed catalytic suspension on the surface of the substrate, the Guan Lin (4) optional money ...), drilling (Co) 'recording (Ni) Or one of the alloys of any combination thereof; &) annealing the substrate on which the catalyst layer is formed in an air of 7〇〇9〇〇(>c for about 30 minutes to 90 minutes, (the substrate to be treated) Placed in the reaction furnace 'heated to 5 〇〇 74 (rc in a protective gas atmosphere, then passed into the carbon source gas to react for about 5~3G minutes, and grow to obtain a super-shunned carbon nanotube array with a south degree of 200~ 400 μm. The super-sequential carbon nanotube array is a plurality of tantalum-pure carbon nanotube arrays which are parallel to each other and perpendicular to the substrate. The above-mentioned controlled growth conditions are substantially not in the super-sequential carbon nanotube array. Containing impurities such as no carbon or residual (four) catalyst metal particles, etc. in the array of carbon nanotubes The carbon nanotubes are closely connected to each other by van der Waals force. The carbon nanotube array is substantially the same as the above substrate area. [0019] In this embodiment, the carbon source gas may be selected from the group consisting of ethylene, ethylene, and chemistry. For the more active hydrocarbons, the preferred carbon source gas in this embodiment is B; the shielding gas is a reduced or secret gas, and the preferred shielding gas in this embodiment is a rat gas* [0020] 096149379 It is understood that the form number A0101 is The carbon nanotube array provided by the embodiment is not limited to the above-mentioned system 丨0 page / total 25 pages 1003398735-0 1355765 100 years. October 27th revised replacement page preparation method. It can also be a graphite electrode constant current arc discharge deposition method, Laser evaporation deposition method, etc. [0021] Step 2: Using a stretching tool to extract a carbon nanotube film from the carbon nanotube array, which specifically includes the following steps: (a) from the above carbon nanotube A plurality of carbon nanotube segments of a certain width are selected in the array. In this embodiment, it is preferred to contact the carbon nanotube array with a tape having a certain width to select a plurality of carbon nanotube segments of a certain width; (b) at a certain speed Along the basic The plurality of carbon nanotube segments are stretched perpendicular to the growth direction of the carbon nanotube array to form a continuous carbon nanotube film. [0022] In the above stretching process, the plurality of carbon nanotube segments are While gradually pulling away from the substrate in the direction of stretching under tension, the selected plurality of carbon nanotube segments are continuously pulled out end to end with other carbon nanotube segments due to the van der Waals force, thereby forming a The carbon nanotube film comprises a plurality of carbon nanotube bundles connected end to end and oriented. The arrangement of the carbon nanotubes in the carbon nanotube film is substantially parallel to the pulling of the carbon nanotube film. [0023] The two carbon nanotube films prepared above are respectively made into a carbon nanotube layer, that is, each carbon nanotube layer comprises a carbon nanotube film. The two carbon nanotube layers described above are overlapped and intersected such that the aligned carbon nanotubes in the two carbon nanotube layers have an intersection angle α, 0 < a 90 s. It can be understood that since the arrangement direction of the carbon nanotubes in the carbon nanotube film is substantially parallel to the stretching direction of the carbon nanotube film, the carbon nanotubes between the two carbon nanotube layers can be made. Set to an angle of intersection α. 096149379 Form No. 1010101 Page 11 of 25 1003398735-0 1355765 100 years. October 2'7 day shuttle replacement page [0024] See Figure 3 ^ s Xuan Nai for the carbon official film for the preferred orientation A carbon nanotube film having a certain width formed by the end of the carbon nanotube bundle. The arrangement of the carbon nanotubes in the carbon nanotube film is substantially parallel to the stretching direction of the carbon nanotube film. The preferred orientation of the carbon nanotube film obtained by direct stretching has better uniformity than the disordered carbon nanotube film, i.e., has a more uniform thickness and a more uniform electrical conductivity. At the same time, the method of directly stretching the carbon nanotube film is simple and rapid, and is suitable for industrial application. [0025] In this embodiment, the width of the carbon nanotube film is related to the size of the substrate on which the carbon nanotube array is grown. The length of the carbon nanotube film is not limited and can be obtained according to actual needs. The thickness of the carbon nanotube film is 0.5 nm to 100 μm. 5纳米〜50纳米。 When the carbon nanotubes in the carbon nanotubes are a single-walled carbon nanotubes, the diameter of the single-walled carbon nanotubes is 0. 5 nanometers ~ 50 nanometers. When the carbon nanotube in the carbon nanotube film is a double-walled carbon nanotube, the diameter of the double-walled carbon nanotube is 1.0 nm to 50 nm. 5纳米〜50纳米。 When the carbon nanotubes in the carbon nanotubes are multi-walled carbon nanotubes, the direct control of the multi-walled carbon nanotubes is 1. 5 nanometers ~ 50 nanometers. [0026] It can be understood that since the carbon nanotubes in the super-sequential carbon nanotube array of the embodiment are very pure, and since the specific surface area of the carbon nanotube itself is very large, the carbon nanotube film itself has a relatively large Strong sticky. Therefore, the carbon nanotube film can be directly adhered to the first substrate 120 or the second substrate 140 as the first conductive layer 122 and the second conductive layer 142. In addition, the above-described carbon nanotube film adhered to the first substrate 120 or the second substrate 140 may be treated with an organic solvent. Specifically, the organic solvent can be dropped on the surface of the carbon nanotube film by a test tube to infiltrate the entire carbon nanotube film 096149379. Form No. A0101 Page 12 / Total 25 Page 1003398735-0 1.355765 100 years. October 27 page. The organic solvent is a volatile organic solvent such as ethanol, decyl alcohol, acetone, di-ethane or gas, and ethanol is used in this embodiment. After the carbon nanotube film is infiltrated by an organic solvent, the carbon nanotube film can be firmly attached to the surface of the substrate under the action of the surface tension of the volatile organic solvent, and the surface volume ratio is reduced and the viscosity is lowered. Has good mechanical strength and boring. [0028] In addition, in order to reduce the electromagnetic interference generated by the display device and avoid the error of the signal emitted from the touch screen 10, a shielding layer (not shown) may be disposed on the lower surface of the second substrate 140. . The shield layer may be formed of a conductive material such as an indium tin oxide (I TO) film, a tantalum tin oxide (yttrium) thin film, a nickel gold thin film, a silver thin film film, or a carbon nanotube film. In this embodiment, the shielding layer comprises a carbon nanotube film, and the arrangement of the carbon nanotubes in the carbon nanotube film is not limited, and may be oriented or arranged. In this embodiment, the carbon nanotubes in the shielding layer are aligned. The carbon nanotube film acts as an electrical grounding point and acts as a shield, allowing the touch screen 10 to operate in a non-interfering environment. Referring to FIG. 4, the embodiment of the present invention further provides a display device 100 using the touch screen 10, which includes the touch screen 10 and a display device 20. The display device 20 is disposed adjacent to and adjacent to the second electrode plate 14 of the touch screen 10 described above. The touch screen 10 can be disposed at a predetermined distance from the display device 20, or can be integrated on the display device 20. When the touch screen 10 is integrated with the display device 20, the touch screen 10 can be attached to the display device 20 by an adhesive. [0030] The display device 20 of the present technical solution can be a liquid crystal display, a field emission display 096149379 Form No. 101 0101 Page 13 / Total 25 pages 1003398735-0 1355765 100 years. October 27th is replacing the pager, f-paste display, electricity Display devices such as a light-emitting display, a vacuum fluorescent display, and a cathode ray tube. [0031] Further, when a shielding layer 22 is disposed on the lower surface of the second substrate 140 of the touch screen 10, a passivation layer 24 may be disposed on the surface of the shielding layer 22 away from the second substrate 140. The passivation layer 24 It can be formed of a material such as tantalum nitride or tantalum oxide. The passivation layer 24 is spaced apart from the front side of the display device 20 by a gap 26. The passivation layer 24 is used as a dielectric layer and protects the display device 20 from damage due to excessive external force. In addition, the display device 100 further includes a touch screen controller 30, a central processing unit 40, and a display device controller 50. The touch screen controller 30, the central processing unit 40, and the display device controller 50 are mutually connected by a circuit. The touch screen controller 30 is electrically connected to the touch screen 20. The display device controller 50 and the display device 20 Electrical connection. The touch screen controller 30 positions the selection message input by an icon or menu position touched by a finger or the like 60, and passes the message to the central processor 40. The central processor 40 controls the display of the display element 20 by the display controller 50. [0033] In use, a voltage of 5 V is applied between the first electrode plates 12 and the second electrode plates 14, respectively. The user visually confirms the display of the display element 20 disposed under the touch screen 10 while pressing the first electrode plate 12 of the touch panel 10 by the touch object 60 such as a finger or a pen. The first substrate 120 in the first electrode plate 12 is bent such that the first conductive layer 122 of the pressing portion 70 is in contact with the second conductive layer 142 of the second electrode plate 14 to form a conduction. The touch screen controller 30 measures the voltage change in the first direction of the first conductive layer 122 and the voltage change in the second direction of the second conductive layer 142, respectively, and performs accurate measurement 096149379 Form No. A0101 Page 14 / Total 25 Page 1003398735 -0 1.355765 100 years. October 2> Day correction replacement page calculation, convert it to contact coordinates. The touch screen controller 30 communicates the digitized contact coordinates to the central processor 40. The central processor 40 issues corresponding commands in response to the contact coordinates, initiates various functional switching of the electronic device, and controls display of the display component 20 by the display controller 50. [0034] The touch screen and the display device using the at least two overlapping and intersecting carbon nanotube layers as the transparent conductive layer provided by the embodiments of the present technical solution have the following advantages: First, the carbon nanotubes have excellent mechanical properties. The single carbon nanotube layer composed of the aligned carbon nanotubes has good toughness and mechanical strength, and the at least two overlapping and disposed carbon nanotube layers have more excellent toughness and mechanical properties. The strength, using the at least two overlapping and intersecting carbon nanotube layers as the transparent conductive layer, can correspondingly improve the durability of the touch screen, thereby improving the durability of the display device using the touch screen; second, due to the nano carbon The tube has excellent electrical conductivity, and the carbon nanotube layer composed of the aligned carbon nanotubes has a uniform resistance distribution, and thus, the above overlapping and intersecting at least two layers of carbon nanotubes are used for transparent conduction. The layer can correspondingly improve the resolution and accuracy of the touch screen and the display device. [0035] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art to the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0036] FIG. 1 is a schematic perspective view of a touch screen of an embodiment of the present technical solution. 2 is a schematic side view showing the structure of a touch screen according to an embodiment of the present technical solution. 096149379 Form No. A0101 Page 15 of 25 1003398735-0 1355765 100 years. October 27th, according to the replacement page [0038] Figure 3 is a technical example of the touch screen in the touch screen of the carbon screen Electron micrograph. 4 is a schematic side view showing the structure of a display device according to an embodiment of the present technical solution. [Main component symbol description] [0040] Touch screen: 10 [0041] First electrode plate: 12 [0042] Second electrode plate: 14 [0043] Dot spacer: 16 [0044] Insulation: 18 [0045] A substrate: 120 [0046] First conductive layer: 122 [0047] First electrode: 124 [0048] Second substrate: 140 [0049] Second conductive layer: .142 [0050] Second electrode: 144 [0051] Transparent protective film: 126 [0052] Display device: 100 [0053] Display device: 20 [0054] Touch screen controller: 30 [0055] Central processing unit: 40 Form number A0101 096149379 Page 16 of 25 1003398735-0 100 years. October 2'7 press positive replacement page 1.355765 [0056] Display device controller: 50 [0057] Touch object: 60 [0058] Press: 70 [0059] Shield: 22 [0060] Passivation layer: 24 ' [0061] Gap: 26 096149379 Form No. A0101 Page 17 / Total 25 Page 1003398735-0