200929643 .九、發明說明： .【發明所屬之技術領域】 本發明涉及一種觸摸屏、觸摸屏的製備方法及使用該 觸摸屏的顯示裝置，尤其涉及一種基于奈米碳管的觸摸 屏、該觸摸屏的製備方法及使用該觸摸屏的顯示裝置。 【先前技術】 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 Ο 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，一邊對位于觸摸屏背面的顯示 元件的顯示内容進行梘覺確認，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。 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 A外線式及表面聲波式。其中電阻式觸摸屏的應用最爲廣 ❹ 泛，請參見文獻 “Production of Transparent Conductive Films with Inserted Si02 Anchor Layer, and Application to a Resistive Touch Panel” Kazuhiro Noda, Kohtaro Tanimura. Electronics and Communications in Japan, Part 2，Vol.84, P39-45(2001)。 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；及多個點狀隔離物（Dot 200929643 • 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采用具有導電特 性的銦錫氧化物（lndium Tin Oxide，ITO)層（下稱ιτο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。 、先前的電阻式觸摸屏的製備方法通常係釆用離子束 濺射或蒸鍍等工藝在上下基板上沈積一層IT〇層作爲透明 導電層，在製備的過程，需要較高的真空環境及需要加熱 ❹到200〜30CTC，因此’使得ΙΤ〇層的製備成本較高。此外， ΙΤ〇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，ιτ〇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。 有鑒于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，及一種方法簡單、 成本低的觸摸屏的製傷方法及使用該觸摸屏的顯示裝置。 【發明内容】 200929643 一一種觸摸屏，包括：一第一電極板，㈣一電極板包 .面.及一基體及—第一導電層設置在該第一基體的下表 二第二電極板’該第二電極板與第-電極板間隔設 ，第電極板包括一第二基體及一第二導電層設置在 ^一基體的上表面；其中，上述第—導電層和第二導電 個導電層包括一奈米碳管層，該奈米碳管層 包括夕個相互纏繞的奈米碳管。 〇碳管：以下步驟:提供一奈米 管原料H Γ 絲；絮化處理上述奈米碳 狀::：進Γ 管絮狀結構，通過對該奈米碳管絮 ’分別在上述第一基體和第二基體表面形 成第一導電層和第二導電層；在 :第第::：，在所述第二導電層上設置兩個第= 極板門隔2和第—電極板，並將該第—電極板和第二電 使上述第一導電層和上述第二導電層相 ©對5又置，從而得到一觸摸屏。 -電：裝置，包括：一觸摸屏，該觸摸屏包括-第 及第莫當第—電極板，該第一電極板包括-第-基體 及一第一導電層設置在該第一基體的下表面 3第-電極板間隔設置，且包括一第二基體及一； 電層设置在該第二基體的上表面；及一顯示 設備正對且靠近上述觸摸缸° ^ 述第-導電層和第二置；其中，上 乎破其恳電層中的至少一個導電層包括一夺 層’該奈米碳管層包括多個相互纏繞的奈米碳管Ϊ 200929643 與現有技術相比較，本技術方案實施例提供的采用奈 米碳管層作爲透明導電層的觸摸屏、觸摸屏的製造方法i 顯f置具有以下優點：其一，由于奈米碳管在所述的奈 米碳管層中通過凡德瓦爾力相互吸引、纏繞，形成網絡狀 結構’從而使得上述的奈米石炭管層具有較好的機械强度和 韌陡故，采用上述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，進而提高顯示裝置的耐用性； $—，上述奈米碳管層中的奈米碳管薄膜包含多個奈米碳 管，^上述的奈求碳管在每一奈米碳管薄膜中各向同性、 均勻刀布、、無規則排列，形成大量的微孔結構，微孔孔徑 小于10微米。故，釆用上述的奈米碳管層作透明導電層， 可使得透”電層具㈣W阻值分布和較好的透光曰特 性，從而提高觸摸屏及使用該觸摸屏的顯示裝置的分 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 觸摸：的製備方法及使用該觸摸屏的顯示震置。觸摸屏 /閱圖1及圖2,本技術方案實施例提供一 Γ4=:Γ10包括一第一電極板12,-第二電極板 明點狀隔離=Γ6電極板12與第二電極板14之間的多個透 ⑵及該^—電極板12包括一第一基體120，—第一導電詹 第—t兩個第一電極124。該第一基體120爲平面結構，該 ”層122與兩個第一電極124均設置在第—基體 200929643 =的/表面。兩個第-電極124分別設置在第一導電層 122沿第—方向的兩端並盥第一導電屏φ $ & 曰 二電極板u包括一第電連接。該第 個第二電極144。/第:其體::第二導電層142及兩 電層um兩個第%^ 〇爲平面結構，該第二導 弟-電極144均設置在第二基體140的上 。兩個第二電極144分別設置在第二導電層142沪第 :方向㈣端並與第二導電層142電連接。該第—方㈣ Ο ❹ t該弟一方向，即兩個第-電㊣124與兩個第二電極144 正父设置。其中’該第一基體12〇爲透明的且具有一定 軟度的薄膜或薄板，該第二基體14〇爲透明基板，該第二 基體14G的材料可選擇爲玻璃H金⑽及塑料等硬 性材料或柔性材料。所述第二基冑14〇主要起支撑的作 用該帛電極124與該第二電極144的材料爲、太 米碳管薄膜或其他導電材料，只要確保導電性即可。本: 施例中1第-基體携爲聚酷膜，該第二基體14〇爲^ 璃基板’該第一電極124與第二電極144爲導電的銀漿層。 進步地’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設置在所 述第一導電層122和第二導電層142之間，且該多個透明 點狀隔離物16彼此間隔設置。第一電極板ι2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均可采用絕緣透明樹脂或其他絕緣透明材料製 200929643 •成。設置絕緣層18與點狀隔離物16可使得第一電極板 •與第二電極板12電絕緣。可以理解，當觸摸屏1〇尺寸較 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。 該第一導電層122與第二導電層142中的至少一個導 電層包括一奈米碳管層。進一步地，該奈米碳管層可以爲 -個奈米碳官薄膜’該奈米碳管薄膜包括相互纏繞的奈米 碳管’所述奈米碳管之間通過凡德瓦爾力相互吸引、纏繞， 形成網絡狀結構。所述奈米碳管薄膜中，奈米碳管爲 同性:均句分布，無規則排列，形成大量的微孔結構，微 孔孔徑小于10微米。上述奈米碳管層的長度和寬度不限， 可根據實際需要製成具有任意長度和寬度的奈米碳管層。 =外，上述奈米碳管層的厚度也不限，在確保透光性的前 提下，可根據實際需要製成具有任意厚度的奈米碳管層。 上述奈米碳管薄膜中的奈采碳管包括單壁奈米碳管、雙壁 ❹”管和多壁奈米碳管中的一種或多種。所述單壁奈米 5官的直徑爲0.5奈米〜50奈米。所述雙壁奈米碳管的直 技爲1.0奈米〜50奈米。所述多壁奈米碳管的直徑爲15奈 米〜50奈米。 ^由于奈米奴官相互纏繞，因此所述奈米碳管薄膜具有 报好的勤性，可以彎曲折叠成任意形狀而不破裂。本技術 方案實施例中的奈米碳管薄膜爲一平面結構。 ^另外該第一電極板12上表面可進一步設置一透明保 蒦膜126，該透明保護膜126可由氛化石夕、氧化石夕、苯丙 11 200929643 •環丁烯（BCB)、聚酯及丙烯酸樹脂等材料形成。該透明保 •濩膜126也可采用一層表面硬化處理、光滑防刮的塑料 層，如聚對苯二曱酸乙二醇酯（PET )膜，用于保護第一 電極板12，提高耐用性。該透明保護膜126還可用于提供 一些其它的附加功能，如可以减少眩米或降低反射。 ❹ 此外，可選擇地，爲了减小由顯示設備產生的電磁干 擾，避免從觸摸屏1〇發出的信號產生錯誤，還可在第二基 體⑽的下表面上設置一屏蔽層（圖未示）。料蔽層可^ 銦錫氧化物（ITO )薄膜、録錫氧化物（AT〇 )薄膜、錄金 薄膜、銀薄膜或奈米碳管層等透明導電材料形成。本實施The invention relates to a touch screen, a method for preparing a touch screen, and a display device using the touch screen, in particular to a touch panel based on a carbon nanotube, a preparation method of the touch screen and A display device using the touch screen. [Prior Art] 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 on the front surface of a display element such as a liquid crystal are gradually increasing. The user of such an electronic device operates on the touch panel while pressing the touch panel with a finger or a pen while confirming the display content of the display element located on the back surface of the touch panel. Thereby, various functions of the electronic device can be operated. According to the working principle of the touch screen and the transmission medium, the previous touch screens are generally divided into four types, namely, resistive, capacitive sensing, red A external and surface acoustic wave. Among them, the application of the resistive touch screen is the most extensive, please refer to the document "Production of Transparent Conductive Films with Inserted Si02 Anchor Layer, and Application to a Resistive Touch Panel" Kazuhiro Noda, Kohtaro Tanimura. Electronics and Communications in Japan, Part 2, Vol. 84, P39-45 (2001). The prior resistive touch screen generally comprises an upper substrate, the upper surface of which is formed with an upper transparent conductive layer; the lower substrate, the upper surface of which is formed with a transparent conductive layer; and a plurality of dot spacers (Dot 200929643 • Spacer) is placed 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 having a conductive property (hereinafter referred to as a layer). When the upper substrate is pressed with a finger or a pen, the upper substrate is twisted so that the upper transparent conductive layer and the lower transparent conductive layer at the pressing contact 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 a corresponding command according to the contact coordinates, activates various function switching of the electronic device, and controls the display of the display component through the display controller. The previous method for preparing a resistive touch screen is generally to deposit a layer of IT layer on the upper and lower substrates as a transparent conductive layer by ion beam sputtering or vapor deposition. In the process of preparation, a high vacuum environment is required and heating is required. It is 200~30CTC, so it makes the preparation cost of the ruthenium layer higher. In addition, the tantalum 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 ιτ〇 gradually decreases in moist air. As a result, the previous resistive touch screen and display device have disadvantages such as insufficient durability, low sensitivity, linearity and poor accuracy. In view of the above, it is indeed necessary to provide a touch screen and display device with high durability, high sensitivity, linearity and accuracy, and a method for manufacturing a touch screen with simple method and low cost, and a display device using the same. SUMMARY OF THE INVENTION 200929643 A touch screen includes: a first electrode plate, (four) an electrode plate package, a surface, and a substrate and a first conductive layer disposed on the second substrate of the first substrate The second electrode plate is spaced apart from the first electrode plate, the first electrode plate includes a second substrate and a second conductive layer disposed on the upper surface of the substrate; wherein the first conductive layer and the second conductive conductive layer The carbon nanotube layer comprises a carbon nanotube layer, and the carbon nanotube layer comprises a carbon nanotube intertwined. Carbon tube: The following steps: providing a nano tube raw material H Γ silk; flocculation treatment of the above nano carbon shape::: inlet tube floc structure, through the nano carbon tube floc 'in the first substrate And forming a first conductive layer and a second conductive layer on the surface of the second substrate; at: a:::, two second plate spacers 2 and a first electrode plate are disposed on the second conductive layer, and The first electrode plate and the second electrode reposition the first conductive layer and the second conductive layer to form a touch screen. An electric device comprising: a touch screen comprising: - a first and a second electrode plate, the first electrode plate comprising a - a base body and a first conductive layer disposed on a lower surface 3 of the first substrate The first electrode plates are spaced apart and include a second substrate and an electrical layer disposed on the upper surface of the second substrate; and a display device facing the touch cylinder and the second conductive layer Wherein, at least one of the conductive layers in the insulating layer includes a layer of a carbon nanotube layer comprising a plurality of intertwined carbon nanotubes 200929643 compared with the prior art, the embodiment of the present technical solution The provided touch screen using the carbon nanotube layer as a transparent conductive layer and the manufacturing method of the touch screen have the following advantages: First, since the carbon nanotube passes through the van der Waals force in the carbon nanotube layer Mutual attraction and entanglement, forming a network-like structure', so that the above-mentioned nano-carboniferous tube layer has better mechanical strength and toughness, and the above-mentioned carbon nanotube layer is used as a transparent conductive layer, which can correspondingly improve the durability of the touch screen. And further improving the durability of the display device; $-, the carbon nanotube film in the carbon nanotube layer comprises a plurality of carbon nanotubes, and the above-mentioned carbon nanotubes are in each carbon nanotube film Isotropic, uniform knife cloth, and irregular arrangement, forming a large number of microporous structures, the pore diameter of the micropore is less than 10 microns. Therefore, using the above-mentioned carbon nanotube layer as a transparent conductive layer can make the "electrical layer" have a resistance distribution and a good light transmission characteristic, thereby improving the division and precision of the touch screen and the display device using the touch screen. [Embodiment] Hereinafter, a method for preparing a touch touch provided by the present technical solution and a display shake using the touch screen will be described in detail with reference to the accompanying drawings. The touch screen/reading FIG. 1 and FIG. 2, the embodiment of the present technical solution provides a fourth embodiment. =: Γ 10 includes a first electrode plate 12, - a second electrode plate is in the form of a dot-like isolation = a plurality of permeable layers between the 电极 6 electrode plate 12 and the second electrode plate 14 (2) and the electrode plate 12 includes a first substrate 120. The first conductive body is a planar structure. The first layer 120 and the two first electrodes 124 are disposed on the surface of the first substrate 200929643 =. The two first electrodes 124 are respectively disposed at both ends of the first conductive layer 122 along the first direction and are coupled to the first conductive screen φ $ & 曰 The second electrode plate u includes a first electrical connection. The first second electrode 144. /: body:: the second conductive layer 142 and the two electrical layers um are the planar structures, and the second conductive electrodes 144 are disposed on the second substrate 140. The two second electrodes 144 are respectively disposed at the second conductive layer 142: the direction (four) end and are electrically connected to the second conductive layer 142. The first-party (four) Ο ❹ t the younger one direction, that is, the two first-electrode positive 124 and the two second electrodes 144 are the parent. Wherein the first substrate 12 is transparent and has a certain degree of softness of the film or sheet, the second substrate 14 is a transparent substrate, and the material of the second substrate 14G can be selected from a hard material such as glass H gold (10) and plastic. Or flexible material. The second substrate 14 is mainly used for supporting the material of the germanium electrode 124 and the second electrode 144, a carbon nanotube film or other conductive material, as long as conductivity is ensured. In the embodiment, the first substrate and the second electrode 144 are conductive silver paste layers. The first substrate 124 and the second electrode 144 are conductive silver paste layers. An insulating layer 18 is provided 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 between the first conductive layer 122 and the second conductive layer 142, and the plurality of transparent dot spacers 16 are spaced apart from each other. The distance between the first electrode plate ι2 and the second electrode plate 14 is 2 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. Providing the insulating layer 18 and the dot spacers 16 allows the first electrode plate to be electrically insulated from the second electrode plate 12. It can be understood that when the size of the touch screen 1 is small, the dot spacer 16 is of an alternative structure, and it is only necessary to ensure that the first electrode plate 14 is electrically insulated from the second electrode plate 12. At least one of the first conductive layer 122 and the second conductive layer 142 includes a carbon nanotube layer. Further, the carbon nanotube layer may be a nano carbon official film, the carbon nanotube film includes intertwined carbon nanotubes, and the carbon nanotubes are attracted to each other by van der Waals force. Winding, forming a network structure. In the carbon nanotube film, the carbon nanotubes are homogenous: uniform distribution, irregular arrangement, forming a large number of microporous structures, and the pore diameter is less than 10 micrometers. The length and width of the above-mentioned carbon nanotube layer are not limited, and a carbon nanotube layer having an arbitrary length and width can be formed according to actual needs. In addition, the thickness of the above-mentioned carbon nanotube layer is not limited. Under the premise of ensuring light transmittance, a carbon nanotube layer having an arbitrary thickness can be formed according to actual needs. The carbon nanotubes in the above carbon nanotube film include one or more of a single-walled carbon nanotube, a double-walled tube, and a multi-walled carbon tube. The diameter of the single-walled nanometer is 0.5. Nano ~ 50 nm. The double-walled carbon nanotubes have a direct geometry of 1.0 nm to 50 nm. The diameter of the multi-walled carbon nanotubes is 15 nm to 50 nm. ^Because of the nano The slave carbon nanotubes are intertwined, so that the carbon nanotube film has good flexibility and can be bent and folded into any shape without breaking. The carbon nanotube film in the embodiment of the technical solution is a planar structure. Further, 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 a material such as a fossilized stone, a oxidized stone, a styrene-butadiene 11 200929643 • a cyclobutene (BCB), a polyester, or an acrylic resin. The transparent protective film 126 can also be coated with a surface-hardened, smooth scratch-resistant plastic layer, such as a polyethylene terephthalate (PET) film, for protecting the first electrode plate 12, thereby improving Durability. The transparent protective film 126 can also be used to provide some other additional functions, such as In order to reduce the glare or reduce the reflection. ❹ 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 1 , a lower surface of the second substrate ( 10 ) may be disposed. The shielding layer (not shown) may be formed of a transparent conductive material such as an indium tin oxide (ITO) film, a tin oxide film (AT〇) film, a gold film, a silver film or a carbon nanotube layer. This implementation
例中，所述的屏蔽層包含一太丰# Μ — W 膜中的太丰^ 3 I未石厌官薄膜’該奈米碳管薄 Ί不未石厌吕的排列方式不限，可爲各向同性，均句分 :規騎列也可爲其它的排財式m μ八太〃 f屏蔽層中的奈米碳管各向同性， =二刀，…、規則排列。該奈米碳管薄膜作爲雷接从 起到屏蔽的作用，從而使彳旱 、^接也點， 工作。 而•職屏1G能在無干擾的環境中 種製備上述觸 摸屏^Γ3,本技㈣較施例提供一 接屏10的方法，具體包括以下步驟. 步驟.提供-奈米碳管原 — 體。 及第一基體和第二基 所述奈米碳管原料的獲得 首弈，担也 ^ ^ π Μ卜步驟： 于一基底，優選 地 ’、不、米碳管陣列形成 該陣列爲超賴奈米碳管陣列。 12 200929643 ..本技術方案實施例提供的奈米碳管陣列爲單壁奈米碳 •管陣列、雙壁奈米碳管陣列及多壁奈米碳管陣列中的二種 或多種。本實施例中，超順排奈米礙管陣列的製備方法采 用化學氣相沈積法，其具體步驟包括··（a)提供一平整基 底’該基底可選P型型石夕基底，或選用形成有氧化 層的石夕基底’本實施例優選爲采用4英寸的石夕基底；⑴ 在基底表面均勻形成一催化劑層，該催化劑層材料可選用 鐵（Fe)、# (Co)、錄（Ni)或其任意組合的合金之一； ❹（c)將上述形成有催化劑層的基底在700〜9〇(Tc的空氣中 退火約30分鐘〜9〇分鐘；（d)將處理過的基底置于反應爐 =，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5〜30分鐘，生長得到超順排奈米碳管障列， 其局度爲200〜400微米。該超順排奈米碳管陣列爲多個彼 此平订且垂直于基底±長的奈米石炭管形成的纯奈米碳管陣 列。通過上述控制生長條件，該超順排奈米碳管陣列中基 ❹本不含有雜質，如無定型碳或殘留的催化劑金屬顆粒等。 該奈米石厌官陣列中的奈米碳管彼此通過凡德瓦爾力緊密接 觸形成二車列。該奈米碳管陣列與上述基底面積基本相同。 其次，木用刀片或其他工具將上述奈米碳管陣列中的 奈米碳官從基底刮落，獲得一奈米碳管原料，其中上述奈 米反S在疋程度上保持相互纏繞的狀態。所述的奈米碳 管原料中，奈米碳管的長度大于1〇微米。 本實施例中碳源氣可選用乙炔、乙烯、曱烷等化學性 質杈活潑的碳氫化合物，本實施例優選的碳源氣爲乙快； 13 200929643 保°蔓氣體爲乳氣或惰性氣體 氬氣。 本實施例優選的保護氣體爲 可以理解，本實施例提供的奈米碳管陣列不限于 I備方法。也可爲石黑责枚— a 發沈積法等。 電極恒流魏放電沈積法、雷射蒸 ❹ “所述第-基體120和第二基體14〇的材料爲玻璃、石 央金剛石及塑料等硬性材料或柔性材料。本實施例中， 該第-基體12〇爲聚酯膜，該第二基體ug爲玻璃基板。 步驟二：絮化處理上述奈米碳管原料，獲得 管絮狀結構’通過㈣奈米碳狀結構特處理= 在上述第一基體120和第二基體14 142。 風弟導電層 ⑴所述絮化處理上述奈米碳管原料的步驟爲將上述奈米 碳管原料添加到-溶劑中通過超聲波分散處理或高强产檀 拌等方法來處理所述奈米碳管原料，獲得-奈米碳管^狀 ❹結構。本技術方案實施例中，所述溶劑可選用水、易揮 的有機溶劑等。優選地，本技術方案實施例采 ^ 聲波分散所述奈米碳管原料10〜30分鐘。由于奈米碳管^ 有極大的比表面積，相互纏繞的奈米碳管之間具有較大的 凡德瓦爾力。上述絮化處理並不會將該奈米碳管原料中的 ^碳管完全分散在溶劑中，奈米碳管之間通過凡德瓦爾 刀相互吸引、纏繞，形成網絡狀結構。 本技術方案實施例中，所述通過對上述奈米碳管絮狀 結構進行處理形成第一導電層122和一第二導電層142的 200929643 .步驟包括以下兩種形成方式：其一，通過抽濾的方式獲得 一奈米碳管層；將所述奈米碳管層粘結在所述第一基體 120和第二基體140表面形成上述第一導電層122和第二 導電層142。其二，分離所述奈米碳管絮狀結構；將上述 奈米碳管絮狀結構按照所述第一基體12〇和第二基體14〇 的形狀攤開在所述第一基體120和第二基體ι4〇上，施加 一定壓力于攤開的奈米碳管絮狀結構；及，將該奈米碳管 絮狀結構中殘留的溶劑烘乾或等溶劑自然揮發後形成上述 ❹第一導電層122和第二導電層142。 本技術方案實施例中，所述的直接通過抽濾的方式獲 得一奈米碳管層的步驟具體包括以下步驟：提供一微孔濾 膜及一抽氣漏斗；將上述含有奈米碳管絮狀結構的溶劑經 過該微孔濾膜倒入該抽氣漏斗中；抽濾並乾燥後獲得一奈 米碳管層。該微孔濾膜爲一表面光滑、孔徑爲〇.22微米的 濾膜。由于抽濾方式本身將提供一較大的氣壓作用于該奈 ❹米碳管絮狀結構，該奈米碳管絮狀結構經過抽濾會直接形 成一均勻的奈米碳管層。且，由于微孔濾膜表面光滑，該 奈米碳管層容易剝離。該奈米碳管層可通過粘結劑粘結在 所述第一基體120和第二基體140表面。 本技術方案實施例中，所述的分離奈米碳管絮狀結構 的步驟具體包括以下步驟：將上述含有奈米碳管絮狀結構 的溶劑倒入一放有濾紙的漏斗中；靜置乾燥一段時間從而 獲得一分離的奈米碳管絮狀結構。上述的奈米碳管在奈米 碳官絮狀結構中相互纏繞成不規則的絮狀結構。 15 200929643 可以理解，也可將分離後的奈米碳管絮狀結構攤開在 -一基板上，施加一定壓力于攤開的奈米碳管絮狀結構，及， 將該奈米碳管絮狀結構中殘留的溶劑烘乾或等溶劑自然揮 發後形成-奈米碳管層，然後將該奈米碳管層切割成基體 大小形狀的奈米碳管層，分別枯結在所述第一基體⑽和 第二基體140上形成上述第一導電層122和第二導電芦 142 〇 彳以理解’本技術方案實施例可通過控制該奈米碳管 絮狀結構攤開的面積來控制該奈米碳管薄膜的厚度和麵密 度。奈米碳管絮狀結構攤開的面積越大，則該奈米碳管薄 膜的厗度和麵岔度就越小。施加的壓力的大小可控制上述 絮狀結構攤開面積的大小。進一步地，還可對上述的奈米 碳管薄膜進行切割，從而形成一預定形狀的奈米碳管層。 所述奈米碳管薄膜的厚度爲0.5奈米-loo微米。 本實施例中，所述奈米碳管薄膜的長度爲3〇厘米，寬 ❾度爲30厘米，厚度爲1微米，所述奈米碳管薄膜的微觀形 貌請參閱圖4,且’該奈米碳管薄膜包括相互纏繞的奈米 碳管。 /、. 本技術方案實施例製備的奈米碳管層中包括相互缠繞 的奈米碳管，所述奈米碳管之間通過凡德瓦爾力相互吸 引、纏繞，形成網絡狀結構，因此該奈米碳管層具有报好 的韌性。在該奈米碳管層中，奈米碳管爲各向同性，均勾 分布’無規則排列，形成大量的微孔結構’微孔孔徑小于 W微米。 16 200929643 • 步驟三：在上述第一導電層122上設置兩個第一電極 -124 ’在上述第二導電層142上設置兩個第二電極144，形 成第一電極板12和第二電極板14，並將上述第一電極板 12和第二電極板14間隔設置，且使上述第一導電層122 和上述第二導電層142相對設置，從而得到一觸摸屏1〇。 本技術方案實施例中，所述兩個第一電極124和兩個 第電極144均爲導電的銀聚層。所述兩個第一電極la 兩個第二電極144的形成方法爲：采用絲網印刷、移印 或噴塗等方式分別將銀漿塗覆在所述第一導電層142沿第 /一方向的兩端及第二導電層142沿第二方向的兩端f然 後，將第一電極板和苐二電極板分別放入烘箱中烘烤ι〇_卯 分鐘使銀漿固化，烘烤溫度爲1〇(rc_12〇〇c，即可得到所述 第一電極124及所述第二電極144。上述第一方向垂直于 上述第二方向，即兩個第一電極124與兩個第二電極144 正交設置。In the example, the shielding layer comprises a Taifeng #Μ - W film in the Taifeng ^ 3 I is not a stone anomaly film 'the carbon nanotubes are not limited to the arrangement of the stone Isotropic, equal sentence: the ruler can also be used for other types of m-eight-eight-tap, the carbon nanotubes in the shielding layer is isotropic, = two knives, ..., regular arrangement. The carbon nanotube film acts as a shield from the lightning connection, so that the drought and the connection are also working. The job screen 1G can prepare the above touch screen ^3 in a non-interfering environment. The present technology (4) provides a method for connecting the screen 10 according to the embodiment, and specifically includes the following steps. Step. Provide - the original carbon nanotube body. And obtaining the first game of the first substrate and the second base of the carbon nanotube raw material, and carrying the ^^ π Μ step: on a substrate, preferably the ', no, carbon nanotube array forms the array for the super Lai Nai Carbon tube array. 12 200929643. The carbon nanotube array provided by the embodiments of the present technical solution is two or more of a single-walled nano carbon tube array, a double-walled carbon nanotube array, and a multi-walled carbon nanotube array. In this embodiment, the method for preparing the super-shunned nano tube array adopts a chemical vapor deposition method, and the specific steps thereof include: (a) providing a flat substrate, the substrate may be selected from a P-type stone substrate, or The embodiment of the present invention is preferably a 4-inch stone substrate; (1) a catalyst layer is uniformly formed on the surface of the substrate, and the catalyst layer material may be selected from iron (Fe), # (Co), and recorded ( Ni) or one of any combination of alloys; ❹ (c) The substrate on which the catalyst layer is formed is annealed in air of 700 to 9 Torr (Tc for about 30 minutes to 9 minutes; (d) the treated substrate Placed in the reactor =, heated to 5 〇〇 ~ 74 (rc, in the protective gas atmosphere, and then passed into the carbon source gas reaction for about 5 to 30 minutes, growth to obtain super-aligned carbon nanotube barrier, its degree is 200 to 400 μm. The super-sequential carbon nanotube array is a plurality of pure carbon nanotube arrays formed by a carbon nanotube tube which is flat and perpendicular to the substrate ± long. The super-aligned row is controlled by the above controlled growth conditions. The carbon nanotube array does not contain impurities, such as amorphous carbon or residual The catalyst metal particles, etc. The carbon nanotubes in the nano-stone array are in close contact with each other by van der Waals force to form a second train. The carbon nanotube array is substantially the same area as the above substrate. Or other tools scraping the nano carbon official in the above-mentioned carbon nanotube array from the substrate to obtain a carbon nanotube raw material, wherein the above-mentioned nano-anti-S maintains a state of intertwining to each other. In the carbon tube raw material, the length of the carbon nanotubes is greater than 1 μm. In this embodiment, the carbon source gas may be selected from the chemically active hydrocarbons such as acetylene, ethylene, and decane. The preferred carbon source gas in this embodiment is 。 。 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 Responsible - a deposition method, etc. Electrode constant current Wei discharge deposition method, laser evaporation "The material of the first base 120 and the second base 14" are hard materials or flexible materials such as glass, stone, diamond and plastic. . In the embodiment, the first substrate 12 is a polyester film, and the second substrate ug is a glass substrate. Step 2: flocculation treatment of the above carbon nanotube raw materials to obtain a tubular floc structure 'passing (four) nano carbon structure Special treatment = in the first base body 120 and the second base body 14 142. The step of flocculation of the above carbon nanotube raw material by the wind conductive layer (1) is to add the above-mentioned carbon nanotube raw material to the solvent and disperse by ultrasonic wave The carbon nanotube raw material is processed by a method such as treatment or high-strength production of sandalwood, and a carbon nanotube-like structure is obtained. In the embodiment of the present invention, the solvent may be selected from water, a volatile organic solvent, or the like. Preferably, the embodiment of the technical solution disperses the carbon nanotube raw material for 10 to 30 minutes. Since the carbon nanotube has a large specific surface area, the intertwined carbon nanotubes have a large Devalli. The above flocculation treatment does not completely disperse the carbon nanotubes in the carbon nanotube raw material in the solvent, and the carbon nanotubes are attracted and entangled with each other by the van der Waals knife to form a network structure. In the embodiment of the technical solution, the process of forming the first conductive layer 122 and the second conductive layer 142 by processing the above-mentioned carbon nanotube floc structure comprises the following two forms of formation: one, by pumping A carbon nanotube layer is obtained by filtration; the first carbon nanotube layer is bonded to the surfaces of the first substrate 120 and the second substrate 140 to form the first conductive layer 122 and the second conductive layer 142. Secondly, separating the carbon nanotube floc structure; spreading the above-mentioned carbon nanotube floc structure in the shape of the first substrate 12〇 and the second substrate 14〇 in the first substrate 120 and the first Applying a certain pressure to the expanded carbon nanotube floc structure on the second substrate ι4〇; and drying the solvent remaining in the nano carbon tube floc structure or naturally evaporating the solvent to form the first conductive first conductive layer Layer 122 and second conductive layer 142. In the embodiment of the technical solution, the step of obtaining a carbon nanotube layer directly by suction filtration comprises the following steps: providing a microporous membrane and an extraction funnel; and the above-mentioned carbon nanotube containing The solvent of the structure is poured into the suction funnel through the microfiltration membrane; after suction filtration and drying, a carbon nanotube layer is obtained. The microporous membrane is a filter membrane having a smooth surface and a pore diameter of 2222 μm. Since the suction filtration method itself will provide a large gas pressure to the nanometer carbon nanotube floc structure, the carbon nanotube floc structure directly forms a uniform carbon nanotube layer by suction filtration. Moreover, since the surface of the microporous membrane is smooth, the carbon nanotube layer is easily peeled off. The carbon nanotube layer may be bonded to the surfaces of the first substrate 120 and the second substrate 140 by an adhesive. In the embodiment of the technical solution, the step of separating the carbon nanotube floc structure specifically comprises the steps of: pouring the solvent containing the carbon nanotube floc structure into a funnel with a filter paper; and drying it. A period of time is obtained to obtain a separate carbon nanotube floc structure. The above-mentioned carbon nanotubes are intertwined into an irregular floc structure in the nano-carbon floc structure. 15 200929643 It can be understood that the separated carbon nanotube floc structure can also be spread on a substrate, a certain pressure is applied to the expanded carbon nanotube floc structure, and the carbon nanotube is flocculated. The residual solvent in the structure is dried or the solvent is naturally volatilized to form a layer of carbon nanotubes, and then the carbon nanotube layer is cut into a carbon nanotube layer of a matrix size, which is respectively dried in the first The first conductive layer 122 and the second conductive reed 142 are formed on the base body (10) and the second base body 140 to understand that the embodiment of the present technical solution can control the area by controlling the area spread by the carbon nanotube floc structure. The thickness and areal density of the carbon nanotube film. The larger the area of the carbon nanotube floc spread, the smaller the twist and the facet of the carbon nanotube film. The amount of pressure applied controls the amount of expansion of the floc structure described above. Further, the above carbon nanotube film may be cut to form a carbon nanotube layer of a predetermined shape. The carbon nanotube film has a thickness of 0.5 nm-loo micron. In this embodiment, the carbon nanotube film has a length of 3 cm, a width of 30 cm, and a thickness of 1 μm. The microscopic morphology of the carbon nanotube film is shown in FIG. 4, and The carbon nanotube film comprises intertwined carbon nanotubes. The carbon nanotube layer prepared in the embodiment of the technical solution includes intertwined carbon nanotubes, and the carbon nanotubes are attracted to each other and entangled by a van der Waals force to form a network structure. The carbon nanotube layer has a reported toughness. In the carbon nanotube layer, the carbon nanotubes are isotropic, and the hook-and-loop distribution is 'unordered to form a large number of microporous structures'. The pore diameter is less than W micrometers. 16 200929643 • Step 3: providing two first electrodes -124 on the first conductive layer 122. Two second electrodes 144 are disposed on the second conductive layer 142 to form a first electrode plate 12 and a second electrode plate. 14. The first electrode plate 12 and the second electrode plate 14 are spaced apart from each other, and the first conductive layer 122 and the second conductive layer 142 are disposed opposite each other to obtain a touch screen. In the embodiment of the technical solution, the two first electrodes 124 and the two first electrodes 144 are both conductive silver polylayers. The two first electrodes 1a and the second electrodes 144 are formed by applying silver paste to the first conductive layer 142 in the first/first direction by screen printing, pad printing or spraying. Both ends and the second conductive layer 142 are both ends f in the second direction. Then, the first electrode plate and the second electrode plate are respectively placed in an oven for baking 〇 〇 卯 minutes to solidify the silver paste, and the baking temperature is 1 The first electrode 124 and the second electrode 144 are obtained by 〇 (rc_12〇〇c). The first direction is perpendicular to the second direction, that is, the two first electrodes 124 and the two second electrodes 144 are positive. Set the delivery.
可°又置在上述絕緣粘合劑所在區域之外的可視區 内，以確保上述第一 該透明保護膜126 的塑料層，如聚對苯二 電極板12和第二電極板14電絕緣。 6可爲一層表面硬化處理、光滑防刮 二甲酸乙二醇酯（PET)膜，用干伴 用于保 17 200929643 護第一電極板12，提高耐用性。本技術方案實施例♦，該 透明保s蒦膜126采用有枯性的PET膜，該PET膜可直接枯 附于觸摸屏表面用作透明保護臈。 請參閱圖5,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1〇及一顯示設 備20。該顯示設備20正對且靠近上述觸摸屏1〇的第二電 極板14設置。該觸摸屏10可以與該顯示設備2〇間隔一預 疋距離β又置，也可集成在該顯示設備2〇上。當該觸摸屏 10與該顯示設備20集成設置時，可通過粘結劑將該觸摸 屏10附著到該顯示設備20上。 本技術方案顯示設備20可以爲液晶顯示器、場發射顯 示器、電_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。 進一步地，當在該觸摸屏10第二基體14〇的下表面上 設置-屏蔽層22時，可在該屏蔽層22遠離第二基體⑽ ❾的表面上設置-鈍化層24，該鈍化層24可由氮化石夕 切等材料形成。該鈍化層24與顯示設備2()的正面間隔 -間隙26設置。該純化層24作爲介電層 護 顯示設備20不致于由于外力過大而損壞。 佯善該 -中另:處裝/ 1〇0進一步包括-觸摸屏控制器3〇、 中央處理15 40及-顯示設備控制器50。其中，該觸握 該中央處理器4〇及該顯示設備控制器5。三 電連接Si互連接，該觸摸屏控制器3〇與該觸摸屏20 連帛該,4不設備控制器5〇與該顯示設備2〇電連接。 18 200929643 .==器30通過手指等觸摸物6〇觸摸的 .Π〇 =Γ信息輪入’並將該信息傳遞給中央處理 器=該中央處理器40通過該顯示器控制器5 不兀件20顯示。 χ ‘…貝 使用時’在第__電極板12中的第—電極之間及在第二 電極板14中的第二電極之时時施加5ν㈣。使一 邊視覺確認在觸摸屏1G下面設置的顯示元件Μ的顯矛， 一邊通過觸摸物60如手指或筌柢厭雜 如于才曰次筆按壓觸摸屏10第一電極板 ❹ 12,曰進仃刼作。第一電極板12中第一基體12〇發生膏曲， 使得按壓處70的第一導電層122與第二電極板14的第二 :::!42接觸形成導通。觸摸屏控制器3〇通過分別測量 -導電層122第一方向上的電壓變化與第二導電層“a ==向上的電墨變化，並進行精確計算，將它轉換成觸 ，坐“。龍屏控制器30將數字化的觸點坐標傳遞給令央 處理器40。中央處理器4()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20顯示。 與現有技術相比較，本技術方案實施例提供的采用奈 未碳管層作爲透明導電層的觸摸屏、觸摸屏的製造方法及 顯Γ裝置具有以下優點：其一，由于奈米碳管在所述的奈 米碳管層中通過凡德瓦爾力相互吸引、纏繞，形成網絡狀 結構’從而使得上述的奈米碳管層具有較好的機械强度和 勤!生，故’采用上述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，進而提高顯示裝置的耐用性； 19 200929643 .其二’上述奈米碳管層t的奈米碳管薄臈包含多個 .管’且上述的奈米碳管在每一奈米碳管薄膜中各向二-均勾分布、無規則排列，形成大量的微孔結構，微孔孔押 小于二微米。故，釆用上述的奈米碳管層作透明導電層： 可使得透明導電層具有均句的阻值分布和較好的透^特 性’從而提高觸摸屏及使用該觸摸屏的顯示裝置的分辨率 和精確度。其三，由于奈米碳管中 ^ S Τ扪不木石反官溥膜係通 ❹ 過將奈未石反官原料進行絮化處理獲得，且該奈米碳管層可 直接鋪設在基體上形成透明導電層’製備方法簡單且益需 f空環境和加熱過程，故釆用上述方法製備的奈米碳管薄 2所形成的奈米碳管層做透明導電層有利于降低觸摸屏及 使用該觸摸屏的顯示裝置的成本。 ^上所述，本發明確已符合發明專利之要件，遂依法 ^專利申請。惟，以上所述者僅為本㈣之較佳實施例， ❹ 自不能以此限财案之申請專郷圍。舉凡㈣本案技蓺 ^士援依本發明之精神所作之等效修飾或變化，皆應涵 盍於以下申請專利範圍内。 【圖式簡單說明】 圖1係本技術方案實施例觸摸屏的立體結構示意圖。 圖2係本技術方案實施例觸摸屏的側視結構示意圖。 圖3係本技術方案實施例觸摸屏的製備方法的流程示 思、圖。 圖4係本技術方案實施例奈米碳管層中的絮狀奈米碳 s的掃描電鏡圖。 20 200929643 圖5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】 觸摸屏 10 第一電極板 12 第二電極板 14 點狀隔離物 16 絕緣層 18 ®第一基體 120 第一導電層 122 第一電極 124 第二基體 140 第二導電層 142 第二電極 144 透明保護膜 126 q顯示裝置 100 顯示設備 20 觸摸屏控制器 30 中央處理器 40 顯示設備控制器 50 觸摸物 60 按壓處 70 屏蔽層 22 純化層 24 21 200929643 •間隙 26Further, it may be placed in a visible region outside the region where the insulating adhesive is located to ensure that the plastic layer of the first transparent protective film 126, such as the polyethylene terephthalate electrode plate 12 and the second electrode plate 14, is electrically insulated. 6 can be a layer of surface hardened, smooth scratch-resistant polyethylene glycol (PET) film, with a dry companion to protect the first electrode plate 12, to improve durability. In the embodiment of the present invention, the transparent protective film 126 is a dry PET film which can be directly attached to the surface of the touch screen for use as a transparent protective tape. Referring to FIG. 5, the embodiment of the present invention further provides a display device 100 using the above touch screen 10, which comprises the above touch screen 1 and a display device 20. The display device 20 is disposed adjacent to the second electrode plate 14 of the touch panel 1A. The touch screen 10 can be placed at a predetermined distance from the display device 2, or can be integrated on the display device 2A. 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. The display device 20 of the present invention may be a display device such as a liquid crystal display, a field emission display, an electric display, an electroluminescence display, a vacuum fluorescent display, and a cathode ray tube. Further, when the shielding layer 22 is disposed on the lower surface of the second substrate 14A 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 (10), and the passivation layer 24 may be Nitrile cut and other materials are formed. The passivation layer 24 is disposed adjacent to the front surface of the display device 2 (). The purification layer 24 serves as a dielectric laminate display device 20 so as not to be damaged by excessive external force.佯善该 -中其他:装装 / 1〇0 further includes - touch screen controller 3〇, central processing 15 40 and - display device controller 50. The touch controller and the display device controller 5 are touched. The three-electrode connection Si is interconnected, the touch screen controller 3 is connected to the touch screen 20, and the non-device controller 5 is electrically connected to the display device 2A. 18 200929643 .==The device 30 touches the touch object 6〇 by a finger or the like. Π〇=Γ information is rounded in and transmits the information to the central processor=the central processing unit 40 passes the display controller 5 without the device 20 display. ‘ ‘...Bei when used' applies 5 ν (4) between the first electrodes in the __electrode plate 12 and the second electrode in the second electrode plate 14. By visually confirming the display spear of the display element 设置 disposed under the touch screen 1G, while pressing the touch object 60 such as a finger or a cymbal, the first electrode plate ❹ 12 of the touch screen 10 is pressed by the touch pen, and the action is made. . The first substrate 12 in the first electrode plate 12 is smeared such that the first conductive layer 122 of the pressing portion 70 is in contact with the second :::! 42 of the second electrode plate 14 to form a conduction. The touch screen controller 3 转换 converts the voltage change in the first direction of the conductive layer 122 with the change of the second conductive layer "a == upward electric ink, and performs accurate calculation to convert it into a touch and sit". The dragon screen controller 30 passes the digitized contact coordinates to the command processor 40. The central processing unit 4() issues a corresponding command according to the contact coordinates, activates various function switching of the electronic device' and controls the display of the display element 20 by the display controller%. Compared with the prior art, the touch screen, the touch screen manufacturing method and the display device using the nai carbon tube layer as the transparent conductive layer provided by the embodiments of the present technical solution have the following advantages: First, since the carbon nanotubes are in the In the carbon nanotube layer, the van der Waals force attracts and entangles each other to form a network structure, so that the above-mentioned carbon nanotube layer has good mechanical strength and diligence, so the above-mentioned carbon nanotube layer is adopted. As a transparent conductive layer, the durability of the touch screen can be correspondingly improved, thereby improving the durability of the display device; 19 200929643. The second carbon nanotube layer of the above-mentioned carbon nanotube layer t comprises a plurality of tubes and the above The carbon nanotubes are distributed in a bi-homogeneous manner in each carbon nanotube film, and are randomly arranged to form a large number of microporous structures, and the microporous pores are less than two micrometers. Therefore, the above-mentioned carbon nanotube layer is used as the transparent conductive layer: the transparent conductive layer can have a uniform resistance distribution and better transmission characteristics, thereby improving the resolution of the touch screen and the display device using the touch screen. Accuracy. Thirdly, because the carbon nanotubes in the carbon nanotubes are obtained by the flocculation treatment of the Naiwu stone anti-official materials, and the carbon nanotube layer can be directly laid on the substrate to form a transparent The conductive layer 'preparation method is simple and requires an empty environment and a heating process. Therefore, the carbon nanotube layer formed by the carbon nanotube thin film 2 prepared by the above method is used as a transparent conductive layer to reduce the touch screen and use the touch screen. The cost of the display device. ^ As stated above, the present invention has indeed met the requirements of the invention patent, and has been patented according to law. However, the above is only the preferred embodiment of this (4), and it is not possible to use this limited financial application. (4) Technical Equivalents of the Case The equivalent modifications or changes made by Shishi in accordance with the spirit of the present invention shall be within the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view of a touch screen of an embodiment of the present technical solution. FIG. 2 is a schematic side view showing the structure of a touch screen according to an embodiment of the present technical solution. FIG. 3 is a flow chart and diagram of a method for preparing a touch screen according to an embodiment of the present technical solution. Figure 4 is a scanning electron micrograph of the flocculated nanocarbon s in the carbon nanotube layer of the embodiment of the present technical solution. 20 200929643 FIG. 5 is a schematic side view showing the display device of the embodiment of the present technical solution. [Main component symbol description] touch screen 10 first electrode plate 12 second electrode plate 14 dot spacer 16 insulating layer 18 first substrate 120 first conductive layer 122 first electrode 124 second substrate 140 second conductive layer 142 Two electrodes 144 transparent protective film 126 q display device 100 display device 20 touch screen controller 30 central processing unit 40 display device controller 50 touch object 60 pressing place 70 shielding layer 22 purification layer 24 21 200929643 • gap 26
22twenty two