200938915 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種液晶顯示屏的製備方法，尤其涉及一 種採用奈米碳管的液晶顯示屏的製備方法。 【先前技術】200938915 IX. Description of the Invention: [Technical Field] The present invention relates to a method for preparing a liquid crystal display, and more particularly to a method for preparing a liquid crystal display using a carbon nanotube. [Prior Art]
液晶配向技術係决定液晶顯不屏優劣的關鍵技術之 一，因爲液晶配向技術的好壞會直接影響最終液晶顯示屏 的品質。南質夏的液晶顯不屏要求液晶有穩定和均勻的初 始排列，而具有誘導液晶定向排列作用的薄層稱爲配向層。 請參閱圖1中所示的液晶顯示屏100，其包括第一基體 104、第二基體112及夾在'第一基體104和第二基體112之間 的液晶層118。 所述第一基體104與第二基體112相對設置。所述液晶 層118包括多個長棒狀的液晶分子1182。所述第一基體104 靠近液晶層118的表面依次設置一第一透明電極層106和一 第一配向層108，且第一基體104的遠離液晶層118的表面設 置一第一偏光片102。所述第二基體112靠近液晶層118的表 面依次設置一第二透明電極層114和一第二配向層116，且 第二基體112的遠離液晶層118的表面設置一第二偏光片 110。 所述第一配向層108靠近液晶層118的表面形成有多個 相互平行的第一溝槽1082。所述第二配向層116靠近液晶層 118的表面形成有多個相互平行的第二溝槽1162。所述第一 溝槽1082和第二溝槽1162的排列方向相互垂直，從而可對 液晶層118中的液晶分子1182進行定向，即靠近第一溝槽 200938915 1082和第二溝槽1162的液晶分子1182分別沿著第一溝槽 1082和第二溝槽1162的方向定向排列。從而使得液晶分子 1182的排列由上而下自動旋轉90度。 •先前技術的液晶顯示屏使用的配向層材料有聚苯乙稀 及其衍生物、聚醯亞胺、聚乙烯醇、聚酯、環氧樹脂、聚 胺酯、聚矽烷等，最常見的為聚醯亞胺。這些材料經磨擦 法，傾斜蒸鍍3丨0}(膜法和對膜進行微溝槽處理法（請參見 “ Atomic-beam alignment of inorganic materials for 〇 liquid-crystal displays”，P. Chaudhari, et al.，Nature, vol 411，P56 (2001))等方法處理後，可形成多個溝槽，該多個 溝槽可使液晶分子定向排’列。 先前技術中的採用磨擦法製備配向層的方法主要包括 以下步驟： 首先，在第二透明電極層114的内表面上塗覆一層配向 材料。該配向材料通常選自聚醯亞胺。然後，用絨布滾筒 進行刷磨，使聚醯亞胺表面形成多個微小溝槽1162，從而 ®形成配向層116。 這種依靠絨布滾筒對配向材料進行刷磨的接觸式製造 方法的操作過程較爲複雜，而且在操作過程中容易引入大 量的靜電，容易對使用上述液晶顯示屏100的液晶顯示屏中 的薄膜晶體管元件造成損壞；產生大量的粉塵，需要進行 額外的清洗步驟，以免影響所製成的配向層的品質。而且， 所採用的絨布的壽命有限，需要經常更換。 有鑒于此，確有必要提供一種製備工藝簡單的液晶顯 示屏的製備方法。 7 200938915 【發明内容】 -種液晶顯示屏的製備方法，其包括 . 一臭體.报# ^ , 下乂驟.提供 $成-奈米碳管層于上述基體 管層中的奈米碳管沿同—方 該不未奴 万向排歹j，形成—固定 不米碳管層的表面，製得一第美. 驟，製得重復上述的製備步 Ο '板’&置—液晶層于所述第-基板與第 二基板的固定層之間，且第一极，、弟 芦中的太半石山答心， 土板”第一基板的奈米碳管 ::的山官的排列方向垂直，從而形成所述的液晶顯 不屏。 與先前技術相比較，本技術方案提供的液晶顯示屏的 製備方法具有以下優點：其一，由于作配向層的奈米碳管 層本身具有很多均勻的微小間隙，從而使得形成在奈米碳 管層上的固定層具有微小溝槽，該微小溝槽可對液晶分子 進行配向，從而無需進行額外的工藝使配向層具有微小溝 槽，降低了配向層的製作成本，簡化了製作工藝。其二， 〇由于將固定層覆蓋于所述奈米碳管層的表面，該固定層能 較好地將奈米碳管層固定于所述基體的表面，從而形成一 配向層。該配向層與液晶材料接觸時或與外界長時間接觸 4不脫離’故採用固定層可將配向層較好地固定于基體的 表面。進而採用上述的配向層的液晶顯示屏具有較好的配 向品質。 【實施方式】 以下將結合附圖對本技術方案作進一步的詳細說明。 請參閱圖2及圖3’本技術方案實施例提供了 一種液 8 200938915 晶顯示屏300的製備方法，1 步驟一 ：m:要包括以下步驟： • ^ ^ 促贤弟一基體322。 所述第-基體322的材料可由透日 .英、金剛石或塑料等硬性材料或柔性材料开;成=地石 所述柔性基體的材料可良二 /成。具體地，The liquid crystal alignment technology is one of the key technologies that determine the advantages and disadvantages of liquid crystal display, because the quality of the liquid crystal alignment technology directly affects the quality of the final liquid crystal display. The liquid crystal display screen of the southern summer requires a stable and uniform initial arrangement of the liquid crystal, and the thin layer having the effect of inducing the alignment of the liquid crystal is called an alignment layer. Referring to the liquid crystal display 100 shown in FIG. 1, a first substrate 104, a second substrate 112, and a liquid crystal layer 118 sandwiched between a first substrate 104 and a second substrate 112 are included. The first substrate 104 is disposed opposite to the second substrate 112. The liquid crystal layer 118 includes a plurality of long rod-shaped liquid crystal molecules 1182. A first transparent electrode layer 106 and a first alignment layer 108 are disposed on the surface of the first substrate 104 adjacent to the liquid crystal layer 118, and a first polarizer 102 is disposed on a surface of the first substrate 104 away from the liquid crystal layer 118. A second transparent electrode layer 114 and a second alignment layer 116 are disposed on the surface of the second substrate 112 adjacent to the liquid crystal layer 118, and a second polarizer 110 is disposed on the surface of the second substrate 112 away from the liquid crystal layer 118. The first alignment layer 108 is formed with a plurality of first trenches 1082 that are parallel to each other near the surface of the liquid crystal layer 118. The second alignment layer 116 is formed near the surface of the liquid crystal layer 118 with a plurality of second trenches 1162 that are parallel to each other. The arrangement direction of the first trench 1082 and the second trench 1162 are perpendicular to each other, so that the liquid crystal molecules 1182 in the liquid crystal layer 118 can be oriented, that is, liquid crystal molecules close to the first trenches 200938915 1082 and the second trench 1162 1182 are oriented along the direction of the first trench 1082 and the second trench 1162, respectively. Thereby, the arrangement of the liquid crystal molecules 1182 is automatically rotated by 90 degrees from top to bottom. • The alignment layer materials used in prior art liquid crystal displays are polystyrene and its derivatives, polyimine, polyvinyl alcohol, polyester, epoxy resin, polyurethane, polydecane, etc. The most common is polyfluorene. Imine. These materials are subjected to a rubbing method, oblique evaporation of 3 丨 0} (membrane method and micro-groove treatment of the film (see "Atomic-beam alignment of inorganic materials for 〇liquid-crystal displays", P. Chaudhari, et al After being processed by a method such as Nature, vol 411, P56 (2001), etc., a plurality of trenches can be formed, which can align the liquid crystal molecules in a row. The prior art method for preparing an alignment layer by using a rubbing method The method mainly comprises the following steps: First, an inner surface of the second transparent electrode layer 114 is coated with an alignment material. The alignment material is usually selected from the group consisting of polyimine. Then, the surface of the polyimide is formed by brushing with a flannel roller. A plurality of micro-grooves 1162, thereby forming an alignment layer 116. The contact manufacturing method of brushing the alignment material by the flannel roller is complicated in operation, and a large amount of static electricity is easily introduced during the operation, which is easy to The thin film transistor element in the liquid crystal display of the liquid crystal display 100 described above is damaged; a large amount of dust is generated, and an additional cleaning step is required to avoid the influence The quality of the finished alignment layer. Moreover, the life of the fleece used is limited and needs to be replaced frequently. In view of this, it is necessary to provide a preparation method of a liquid crystal display having a simple preparation process. 7 200938915 [Summary] The preparation method of the liquid crystal display, which comprises: a odor body. reported # ^, the next step. The carbon nanotubes provided in the above-mentioned base tube layer are provided with the same layer of carbon nanotubes. Universally arranging j, forming a surface for fixing the carbon nanotube layer, and preparing a first step, preparing the above-mentioned preparation step 'plate' & setting liquid crystal layer on said first substrate and Between the fixed layers of the two substrates, and the first pole, the Taihu Shishan in the brothers, the earth plate "the carbon nanotubes of the first substrate: the arrangement direction of the hills is vertical, thereby forming the said Compared with the prior art, the preparation method of the liquid crystal display provided by the technical solution has the following advantages: First, since the carbon nanotube layer as the alignment layer itself has many uniform small gaps, thereby forming Solid on the carbon nanotube layer The layer has tiny grooves, which can align liquid crystal molecules, so that no additional process is required to make the alignment layer have tiny grooves, which reduces the fabrication cost of the alignment layer and simplifies the fabrication process. Second, a fixing layer covering the surface of the carbon nanotube layer, the fixing layer preferably fixing the carbon nanotube layer to the surface of the substrate to form an alignment layer. When the alignment layer is in contact with the liquid crystal material or The long-term contact with the outside is not separated. Therefore, the alignment layer can be better fixed to the surface of the substrate by using the fixing layer. Further, the liquid crystal display panel using the above alignment layer has better alignment quality. [Embodiment] Hereinafter, the technical solution will be further described in detail with reference to the accompanying drawings. Please refer to FIG. 2 and FIG. 3'. The embodiment of the present technical solution provides a method for preparing a liquid crystal display screen 300 200938915, and the first step: m: includes the following steps: • ^ ^ Promoting a young body 322. The material of the first base 322 may be made of a hard material or a flexible material such as diaper, diamond or plastic; the material of the flexible substrate may be good or small. specifically,
Triacetate，CTA)等柔性材料。'I纖維素（Cellulose 其中’本實施例的第一基 CTA基體的厚度爲厂，基體’該 ❹厘米。 、又舄20厘米，長度爲3〇 步驟二：形成一第一奈米 . ^ w 厌s層32处于上述第一基 排列 322的表面’該奈来碳管層中的奈㈣管沿同一方向 優選地，該陣列爲超順 首先，提供一奈米碳管陣列 排奈米破管陣列。 本技術方案實施例提供的奈米碳管陣列爲單壁夺米 碳管陣列、雙壁奈米碳管陣列或多壁奈米碳管陣列 實施例中，超順排奈米碳管陣列的製備方法採用化學氣 相沈積法，該超順排奈米碳管陣列爲多個彼此平行且垂 直于基底生長的奈米碳管形成的純奈米碳管陣列。 可以理解，本實施例提供的奈米碳管陣列不限于上述 製備方法。也可爲石墨電極恒流電弧放電沈積法、雷射 蒸發沈積法等。 胃 其次’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或束，本實 200938915 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或束；（b)以一定 速度沿基本垂直于奈米碳管陣列生長方向拉伸該多個奈 米石反管片斷或束，以形成一連續的奈米碳管薄膜。 在上述拉伸過程中，該多個奈米碳管片段或束在拉力 作用下沿拉伸方向逐漸脫離基底的同時，由于凡德瓦 仰，該選定的多個奈米碳管片斷或束分別與其他奈米碳 斷或束首尾相連地連續地被拉出，從而形成一奈米碳 管薄膜。該奈米碳管薄膜中奈求碳管的排列方向基本平行 于奈米碳管薄膜的拉伸方向。 進步地，通過使用，有機溶劑或者施加機械外力處理 所述的奈米碳管薄膜得到一奈米碳管長線。具體地，所述 的使用有機溶劑處理得到一奈米碳管長線的方法具體包括 以下步驟·通過试官將有機溶劑滴落在奈米碳管薄膜表 面’並浸潤整個奈米碳管薄膜。該有機溶劑爲揮發性有機 ❾ΐ:選薛甲醇太丙酮二二氣乙燒或氣仿，本實施例 炎、 ·°。該奈米碳管薄膜經有機溶劑浸潤處理 ，士在揮發財機溶劑的表面張力的作用下 财的平行时米碳以斷會部分聚集成奈㈣管/因 二表：=?管薄膜收縮成奈米碳管長線。該奈米碳管長 摩用有無黏性，且具有良好的機械强度及勤性， =有機_處理後的奈米碳#長線能方便地應用于宏觀 200938915 薄膜的紡紗軸。將該紡紗軸的尾部與奈米碳管薄膜結合 .後，將該紡紗軸以旋轉的方式旋轉該奈米碳管薄膜，從而 形成一奈米碳管長線。該奈米碳管長線為由多個首尾相連 的奈米碳管束組成的絞線結構。可以理解，上述紡紗軸的 旋轉方式不限，可以正轉，也可以反轉，或者正轉和反轉 相結合。 進一步地，還可施加機械外力處理所述拉取獲得的奈 ❹米蛱官長線，形成具有絞線結構的奈米碳管長線。該方 法具體包括以下步驟：提供一紡紗軸；將該紡紗軸的尾 部與奈米碳管長線的一端結合；將該紡紗軸以旋轉的方 式旋出，從而形成具有絞線結構的奈米碳管長線。可以 理解’上述纺紗轴的旋轉方式不限，可以正轉，也可以 反轉，或者正轉和反轉相結合。 本實加例中’所述奈米碳管為單壁奈米碳管、雙壁奈 米碳官及多壁奈米碳管中的一種或幾種；該單壁奈米碳 ❹官的直徑爲0.5奈米〜50奈米，該雙壁奈米碳管的直徑爲 奈米~5〇奈米，該多壁奈米碳管的直徑爲15奈米〜5〇 奈米。 再次’將上述的一個奈米碳管薄膜鋪設于所述基體的 表面、多個奈米碳管薄膜沿同一方向平行且無間隙地鋪 设或將上述的奈米碳管長線緊密排列地鋪設在所述基體 的表面，從而形成一第一奈米碳管層324b覆蓋于所述第 一基體322的表面。 由于奈米碳管薄膜或奈米碳管長線中的奈米碳管均 沿同一方向排列，故上述的奈米碳管薄膜或奈米碳管長 11 200938915 成一個奈米碳管層，只需確保該奈米 •反s層中的不米石反管沿同-方向排列即可。 進一步地’爲了使所述第一太 -黏結在所述第一基體322 ^ a 4b更好地 還可在將上述的第-争二表二本；施例中’進-步 想322的表面之前，在上述第一基 具體包括以下步驟：分別 ：土體322。該方法 洗所述的第-基體322 .田劑和去離子水超聲清 β幹體322,用保護氣體將第一基體322吹 幹優k地，所述的有機溶劑爲無水乙醇，所述 礼體爲氮氣，採用氮氣搶對所述第一基體 幹。。 ^步地，在清洗第基體322之後，還進仃一人步幹 劑層(未標示)于所述第一基體322的表面， 從而形成-第-奈米碳管一二基 〇-基的第一奈米碳管層324b覆蓋于所述第 進行’還可對所述第—奈米碳管層遍 ^ ^ Γ , ^ J ^^ ^ :戶::第一基體3 2 2的表面或黏結;層表。:步:附 :有機^揮發性有機溶劑，可選用乙醇、甲醇丙 醇。=用本實施例令的有機溶劑採用乙 滴落在第一太：二f;里的步驟可通過試管將有機溶劑 米碳管屏的表面，並浸潤整個第一奈 9 。也可將上述形成有第一奈米碳管層324b 12 200938915 的第一基體322整個浸入盛有有機溶劑的容器中浸潤。 所述第一奈米碳管層324b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，其申的平行的奈米 —碳2片斷會部分聚集成奈米碳管束。因此，該第一奈米 石反管層324b的表面體積比小，無黏性，且具有良好的機 械强度及勃性。 在由奈米碳管薄膜形成的第一奈米碳管層324b中， ，奈米碳管薄膜包括多個奈米碳管束片段，每個奈米碳 s束片段具有大致相等的長度且每個奈米碳管束片段由 多個相互平㈣奈米碳管束構成’奈米碳I束片段兩端 通過凡德瓦爾力相互連接。故，奈米碳管薄膜中多個奈 米碳管束或奈米碳管之間具有多個平行且均勻分布的間 隙，該間隙可作爲微小的溝槽用于對液晶分子進行配 =。在由奈米碳管長線無間隙地排列形成的第一奈米碳 官層324b中，多個奈米碳管長線之間也具有多個平行且 均勻分布的間隙，該間隙可作爲微小的溝槽用于對液晶 U分子進行配向。 ，此外，還可採用透明導電膠或黏結劑將上述的第一 奈米碳管層324b黏附在所述第一基體322的表面。 步驟三：覆蓋一第一固定層324a于所述第一奈米碳 管層324b的表面，製得一第一基板33〇。 其中，所述第一固定層324a的材料可由無機材料或 有機材料形成。所述無機材料爲氫化的類金剛石 (diamond-like carb〇n，DLC)、氮化矽（SiNx)、氫化的 型石夕、碳化石夕㈣、二氧化石nsiQ2)、氧化 13 200938915 化鈽（Ce02)、氧化錫（Sn02)、鈦酸鋅（ZnTi02)以及鈦酸銦 (InTi02)等化學物質。可採用蒸鍍、濺射或者電漿增强化 . 學氣相沈積（PECVD)生長等方法將上述的無機材料覆蓋 • 于所述第一奈米碳管層324b的表面，從而形成一第一固 定層324a，其厚度爲10奈米（nm)〜2微米（μπι)。 此外，所述第一固定層324a還可由有機材料形成， 其具體的製備步驟爲： 首先，將有機粉體材料溶于一溶劑中，配成一溶液。 ® 其中，所述的有機粉體材料爲聚乙烯醇（polyvinyl alcohol, PVA)、聚酿亞胺（polyimide，PI)、聚甲基丙稀酸 甲酉旨（polymethyl methacrylate，PMMA)、聚碳酸酉旨 (polycarbonate，PC)等。所述的溶劑爲可揮發的有機溶 劑，配成的溶液的濃度爲1~10%。優選地，所述溶劑爲γ 丁内酯（γ-butyrolactone)，所述有機溶液爲濃度爲5%ΡΙ 溶液。 其次，將上述的溶液滴到所述第一奈米碳管層324b的 Ο的表面，並放入一甩膠機中進行甩膠。 其中，控制滴到所述第一奈米碳管層324b表面的溶 液，可控制最終形成于第一基體322表面的第一固定層 324a的厚度，其厚度爲10奈米（nm)~2微米（μπι)。甩膠機 的轉速爲1000〜8000轉每分鐘（r/min)，優選爲5000r/min。 甩膠的時間不限可根據實際需要進行選擇。優選地，甩膠 時間爲60秒，得到的有機薄膜的厚度爲80nm。 最終，加熱經甩膠處理後的第一基體322，從而得到覆 蓋第一固定層324a的第一基體322。 14 200938915 進一步地，加熱的步驟可除去塗覆于第一奈米碳管層 324b表面上的溶液中的溶劑，並乾燥所述的第一基體 • 322。優選地，加熱第一基體322的溫度爲250°C，加熱的 - 時間爲60秒。可以理解，上述的加熱溫度和時間可根據實 際需要進行選擇。 可以理解，第一奈米碳管層324b中多個奈米碳管、奈 米碳管束以及奈米碳管長線之間具有多個平行的間隙，相 應地，形成在上述第一奈米碳管層324b表面的第一固定層 〇 324a的表面形成了多個平行的第一溝槽328，該第一溝槽 328可對液晶分子進行配向。本實施例提供的第一配向層 324包括第一奈米碳管層324b和第一固定層324a。由于將 第一固定層324a覆蓋于所述第一奈米碳管層324b的表 面，故第一配向層324與液晶材料接觸時或與外界長時間 接觸時不脫離。因此，具有較好的配向品質，進而採用上 述配向層的液晶顯示屏300也具有較好的配向品質。 步驟四：重復上述的製備步驟，製得一第二基板310。 ¥ 具體地，重復上述的第一至第三步驟，從而形成了依 次覆蓋有一第二奈米碳管層304b、第二固定層304a的第 二基體302，作爲第二基板310。從第一基板330的說明可 知，在第二固定層304a靠近液晶層338的表面也形成了多 個平行的第二溝槽308，該第二溝槽308也可對液晶分子 進行配向。 步驟五：設置一液晶層338于所述第一基板330與第 二基板310之間，且第一奈米碳管層324b與第二奈米碳管 層304b中的奈米碳管的排列方向垂直。 15 200938915 首先，將液晶材料滴到第二基板31〇的第二固定層綱& 的表面，，而形成一液晶層338。本實施例中，採用滴管 吸取-定量的液晶材料，之後滴到第二基板膽的第二固 • ^層遍的表面，形成一液晶層338,該液晶層338包括 多個長棒狀的液晶分子。 其次’將第-基板330的第-固定層遍緊鄰所述液 晶層338鍊設，且保證第一基板幻㈣奈米碳管的排列方 ^與第二基板31()的奈米碳管的排列方向垂直，從而使得 ❹苐一配向層324的第—溝槽328與第二配向層綱的第二 溝槽通的排列方向垂直。具體地，第-配向層324中的 ^溝槽328沿X軸方向平行且定向排列；第二配向層綱 一的第一溝槽3〇8沿z轴方向平行且定向排列，從而形成 7液晶顯示屏300。進-步，還可將第-基板330和第二 二板310的週邊採用密封膠進行密封。本實施例，所述的 後封膠爲硫化石夕橡膠7〇6B。 可以理解，爲了保持第一基板33〇與第二基板31〇之 ^的間距’還可在第一基板330和第二基板则之間設置 ::透明間隔物(未示出”所述間隔物的材料和大小可根 據κ際需要進行選擇。本實施例，將㈣微米的聚乙稀 (P〇iy=ylene’ PE)小球超聲分散在無水乙醇中，用滴管吸 =董上述/奋液’滴在第二基板31〇的第二固定層删& ^面。待乙醇揮發後，剩餘的PE小球將起到間隔 作用。 可以理解，爲了使得液晶顯 吒屏 具有更好的偏振 "還可在第一基板330和/或第二基板310遠離液晶層 16 200938915 338的表面設置至少一個偏振片（未示出）。 本技術方案提供的液晶顯示屏3〇〇的製備方法具有以 下優點：其一，由于作配向層的奈米碳管層本身具有很 .多均勻的微小間隙，從而使得形成于奈米碳管層上的固 定層具有微小溝槽，該微小溝槽可對液晶分子進行配 向，從而無需進行額外的工藝使配向層具有微小溝槽， 降低了配向層的製作成本，簡化了製作工藝。其二，由 于將固定層覆蓋于所述奈米碳管層的表面，該固定層能 〇較好地將奈米碳管層固定于所述基體的表面，從而形成 一配向層。該配向層與液晶材料接觸時或與外界長時間 接觸時不脫離，故採用固定層可將配向層較好地固定于 基體的表面。進而採用上述的配向層的液晶顯示屏具有 較好的配向品質。 综上所述，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， ❹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】 圖1為一種先前技術的液晶顯示屏的立體示意圖。 圖2為本技術方案實施例的液晶顯示屏的製備方法的 流程圖。 圖3為本技術方案實施例的獲得的液晶顯示屏的結構 示意圖。 17 100, 300 102 104, 322 106 108, 324 1082, 328 110 112, 302 114 116, 304 1162, 308 118, 338 1182 200938915 【主要元件符號說明】 液晶顯示屏 第一偏光片 *第一基體 第一透明電極層 第一配向層 第一溝槽 0第二偏光片 第二基體 第二透明電極層 第二配向層 第二溝槽 液晶層 液晶分子 第二固定層 304a Ο第二奈米碳管層 304b 第二基板 310 第一固定層 324a 第一奈米碳管層 324b 第一基板 330 18Flexible materials such as Triacetate, CTA). 'I cellulose (Cellulose where 'the thickness of the first base CTA matrix of the present embodiment is the factory, the base body 'the centimeter centimeter.), the 舄 20 cm, the length is 3 〇 step two: forming a first nanometer. ^ w The anodic layer 32 is on the surface of the first base array 322. The nematic tube in the carbon nanotube layer is preferably in the same direction. The array is super-shun. First, a carbon nanotube array is provided. The array of carbon nanotubes provided by the embodiments of the present technical solution is a single-walled carbon nanotube array, a double-walled carbon nanotube array or a multi-walled carbon nanotube array embodiment, and the super-shoring carbon nanotube array The preparation method adopts a chemical vapor deposition method, and the super-sequential carbon nanotube array is a plurality of pure carbon nanotube arrays formed by a plurality of carbon nanotubes which are parallel to each other and grow perpendicular to the substrate. It can be understood that the embodiment provides The carbon nanotube array is not limited to the above preparation method. It can also be a graphite electrode constant current arc discharge deposition method, a laser evaporation deposition method, etc. The stomach is secondly pulled by a stretching tool from a carbon nanotube array. Nano carbon tube film. Its specific package The following steps: (a) selecting a plurality of carbon nanotube segments or bundles of a certain width from the array of carbon nanotubes, and the embodiment 200938915 preferably uses a tape having a certain width to contact the array of carbon nanotubes. a plurality of carbon nanotube segments or bundles of a certain width; (b) stretching the plurality of nanostone counter-pipe segments or bundles at a rate substantially perpendicular to the growth direction of the carbon nanotube array to form a continuous nevron a carbon nanotube film. In the above stretching process, the plurality of carbon nanotube fragments or bundles are gradually separated from the substrate in the stretching direction under the action of tension, and the selected plurality of nanocarbons are selected due to van der Waals. The tube segments or bundles are continuously pulled out in conjunction with other nanocarbons or bundles to form a carbon nanotube film. The arrangement of the carbon nanotubes in the carbon nanotube film is substantially parallel to the nanometer. The stretching direction of the carbon tube film. Progressively, the carbon nanotube long film is obtained by treating the carbon nanotube film with an organic solvent or applying a mechanical external force. Specifically, the organic solvent is used to obtain a one-by-one. Meter The method for long-term carbon tube specifically includes the following steps: the organic solvent is dropped on the surface of the carbon nanotube film by the tester and the whole carbon nanotube film is infiltrated. The organic solvent is a volatile organic hydrazine: the selected methanol methanol is too acetone The second gas is burnt or gas-like, and the embodiment is inflamed, ·°. The carbon nanotube film is infiltrated by an organic solvent, and the surface tension of the volatile solvent is under the action of the surface of the solvent. Aggregation of nai (four) tube / due to two tables: =? tube film shrinks into a long line of carbon nanotubes. The carbon nanotubes have long non-stick properties, and have good mechanical strength and flexibility, = organic _ after treatment The m-carbon long line can be conveniently applied to the spinning shaft of the macro 200938915 film. The tail of the spinning shaft is combined with the carbon nanotube film. Then, the spinning shaft rotates the carbon nanotube film in a rotating manner. Thus forming a long line of carbon nanotubes. The long carbon nanotube line is a stranded structure composed of a plurality of carbon nanotube bundles connected end to end. It can be understood that the above-mentioned spinning shaft is not limited in rotation, and can be rotated forward or reversed, or combined with forward rotation and reverse rotation. Further, a mechanical external force may be applied to treat the long-term nanowire obtained by the drawing to form a long carbon nanotube having a twisted wire structure. The method specifically comprises the steps of: providing a spinning shaft; combining the tail of the spinning shaft with one end of the long line of the carbon nanotube; rotating the spinning shaft in a rotating manner to form a strand having a twisted structure Long carbon pipe. It can be understood that the rotation mode of the above-mentioned spinning shaft is not limited, and it is possible to rotate forward or reverse, or combine forward rotation and reverse rotation. In the present invention, the carbon nanotube is one or more of a single-walled carbon nanotube, a double-walled nano carbon official, and a multi-walled carbon nanotube; the diameter of the single-walled nanocarbon The diameter of the double-walled carbon nanotubes is from nanometers to 5 nanometers, and the diameter of the multi-walled carbon nanotubes is from 15 nanometers to 5 nanometers. Again, the above-mentioned one carbon nanotube film is laid on the surface of the substrate, and a plurality of carbon nanotube films are laid in parallel and without gaps in the same direction or the above-mentioned carbon nanotube long lines are closely arranged. The surface of the substrate is formed to form a first carbon nanotube layer 324b covering the surface of the first substrate 322. Since the carbon nanotubes in the long carbon nanotube film or the long carbon nanotubes in the long carbon nanotubes are arranged in the same direction, the above-mentioned carbon nanotube film or nano carbon tube length 11 200938915 becomes a carbon nanotube layer, and only needs to be ensured. The non-meterite back pipe in the nano-anti-s layer can be arranged in the same direction. Further, in order to make the first-to-be-bonded to the first substrate 322 ^ a 4b, it is better to use the above-mentioned second-part two; in the embodiment, the surface of the first step 322 Previously, the first base includes the following steps: respectively: soil 322. The method washes the first substrate 322 and the deionized water to ultrasonically clear the β dry body 322, and the first substrate 322 is blown dry with a shielding gas, and the organic solvent is anhydrous ethanol. The body is nitrogen, and the first substrate is dried by using nitrogen gas. . Step by step, after cleaning the substrate 322, a layer of a dry layer of a person (not labeled) is further introduced on the surface of the first substrate 322 to form a first-carbon nanotube-di-based group. A carbon nanotube layer 324b covers the surface of the first layer or the bonding of the first substrate 3 2 2 to the first carbon nanotube layer, ^ J ^ ^ ^ : ; layer table. : Step: Attachment: Organic ^ volatile organic solvent, ethanol or methanol propanol can be used. = Use the organic solvent of this embodiment to use B. Drop the first in the first: two f; the step of passing the organic solvent on the surface of the carbon nanotube screen and infiltrating the entire first. The first substrate 322 having the first carbon nanotube layer 324b 12 200938915 formed thereon may be entirely immersed in a container containing an organic solvent to be infiltrated. After the first carbon nanotube layer 324b is subjected to an organic solvent infiltration treatment, the parallel nano-carbon 2 fragments are partially aggregated into a carbon nanotube bundle under the action of the surface tension of the volatile organic solvent. Therefore, the first nano stone back pipe layer 324b has a small surface volume ratio, is non-viscous, and has good mechanical strength and bounciness. In the first carbon nanotube layer 324b formed by the carbon nanotube film, the carbon nanotube film comprises a plurality of carbon nanotube bundle segments, each nano carbon s bundle segment having substantially the same length and each nanometer The carbon nanotube bundle segment is composed of a plurality of mutually flat (four) carbon nanotube bundles. The ends of the nanocarbon I bundle segment are connected to each other by van der Waals force. Therefore, there are a plurality of parallel and evenly distributed gaps between the plurality of carbon nanotube bundles or the carbon nanotubes in the carbon nanotube film, and the gap can be used as a fine groove for matching liquid crystal molecules. In the first nano-carbon layer 324b formed by the long line of the carbon nanotubes without gaps, the plurality of carbon nanotubes also have a plurality of parallel and evenly distributed gaps between the long lines, and the gap can be used as a tiny groove. Used to align liquid crystal U molecules. Further, the first carbon nanotube layer 324b may be adhered to the surface of the first substrate 322 by a transparent conductive paste or a binder. Step 3: covering a first fixed layer 324a on the surface of the first carbon nanotube layer 324b to form a first substrate 33. Wherein, the material of the first pinned layer 324a may be formed of an inorganic material or an organic material. The inorganic material is hydrogenated diamond-like carb〇n (DLC), tantalum nitride (SiNx), hydrogenated type Shishi, carbonized stone (four), carbon dioxide nsiQ2), oxidized 13 200938915 (钸Chemical substances such as Ce02), tin oxide (Sn02), zinc titanate (ZnTi02), and indium titanate (InTi02). The inorganic material may be coated on the surface of the first carbon nanotube layer 324b by vapor deposition, sputtering or plasma enhancement. The method of vapor deposition (PECVD) growth is performed to form a first fixing. Layer 324a has a thickness of 10 nanometers (nm) to 2 micrometers (μm). In addition, the first pinned layer 324a may also be formed of an organic material, and the specific preparation steps are as follows: First, the organic powder material is dissolved in a solvent to form a solution. ® wherein the organic powder material is polyvinyl alcohol (PVA), polyimide (PI), polymethyl methacrylate (PMMA), and polycarbonate. Purpose (polycarbonate, PC) and so on. The solvent is a volatile organic solvent, and the concentration of the solution is 1 to 10%. Preferably, the solvent is γ-butyrolactone, and the organic solution is a 5% ΡΙ solution. Next, the above solution was dropped onto the surface of the crucible of the first carbon nanotube layer 324b, and placed in a rubberizing machine for the silicone. Wherein, controlling the solution dropped onto the surface of the first carbon nanotube layer 324b can control the thickness of the first pinned layer 324a finally formed on the surface of the first substrate 322, and has a thickness of 10 nm to 2 μm. (μπι). The speed of the silicone machine is 1000 to 8000 revolutions per minute (r/min), preferably 5000 r/min. The time of silicone can be selected according to actual needs. Preferably, the silicone time is 60 seconds, and the thickness of the obtained organic film is 80 nm. Finally, the tantalum-treated first substrate 322 is heated to obtain a first substrate 322 covering the first pinned layer 324a. 14 200938915 Further, the step of heating removes the solvent applied to the solution on the surface of the first carbon nanotube layer 324b and dries the first substrate 322. Preferably, the temperature of the first substrate 322 is heated to 250 ° C and the time of heating is 60 seconds. It will be understood that the above heating temperature and time can be selected according to actual needs. It can be understood that there are a plurality of parallel gaps between the plurality of carbon nanotubes, the carbon nanotube bundles and the long carbon nanotubes in the first carbon nanotube layer 324b, and correspondingly formed on the first carbon nanotubes. The surface of the first pinned layer 324a on the surface of layer 324b forms a plurality of parallel first trenches 328 that align liquid crystal molecules. The first alignment layer 324 provided in this embodiment includes a first carbon nanotube layer 324b and a first pinned layer 324a. Since the first pinned layer 324a is covered on the surface of the first carbon nanotube layer 324b, the first alignment layer 324 does not come off when it comes into contact with the liquid crystal material or when it is in contact with the outside for a long time. Therefore, the liquid crystal display panel 300 having the better alignment quality and further adopting the above alignment layer also has better alignment quality. Step 4: Repeat the above preparation steps to obtain a second substrate 310. Specifically, the first to third steps described above are repeated to form a second substrate 302 which is sequentially covered with a second carbon nanotube layer 304b and a second fixed layer 304a as the second substrate 310. As is apparent from the description of the first substrate 330, a plurality of parallel second trenches 308 are also formed on the surface of the second pinned layer 304a adjacent to the liquid crystal layer 338, and the second trenches 308 can also align liquid crystal molecules. Step 5: arranging a liquid crystal layer 338 between the first substrate 330 and the second substrate 310, and arranging directions of the carbon nanotubes in the first carbon nanotube layer 324b and the second carbon nanotube layer 304b vertical. 15 200938915 First, a liquid crystal material is dropped onto the surface of the second fixed layer of the second substrate 31, to form a liquid crystal layer 338. In this embodiment, the liquid crystal material is taken up and quantified by a dropper, and then dropped onto the surface of the second solid layer of the second substrate to form a liquid crystal layer 338, which includes a plurality of long rods. Liquid crystal molecules. Secondly, the first fixed layer of the first substrate 330 is chained adjacent to the liquid crystal layer 338, and the arrangement of the first substrate of the magical (tetra) carbon nanotubes and the carbon nanotubes of the second substrate 31 () are ensured. The alignment direction is vertical such that the first trench 328 of the first alignment layer 324 is perpendicular to the second trench alignment of the second alignment layer. Specifically, the trenches 328 in the first alignment layer 324 are parallel and oriented in the X-axis direction; the first trenches 3〇8 of the second alignment layer are parallel and oriented in the z-axis direction, thereby forming 7 liquid crystals. Display 300. Further, the periphery of the first substrate 330 and the second plate 310 may be sealed with a sealant. In this embodiment, the post sealant is vulcanized stone rubber 7〇6B. It can be understood that in order to maintain the distance between the first substrate 33 and the second substrate 31, a spacer spacer can be disposed between the first substrate 330 and the second substrate: a transparent spacer (not shown) The material and size can be selected according to the needs of κ. In this embodiment, the (four) micron polyethylene (P〇iy=ylene' PE) beads are ultrasonically dispersed in absolute ethanol, and the pipette is sucked. The liquid 'drops on the second fixed layer of the second substrate 31〇 and the surface of the second substrate 31. After the ethanol is volatilized, the remaining PE beads will function as spacers. It can be understood that in order to make the liquid crystal display screen have better polarization " At least one polarizing plate (not shown) may be disposed on the surface of the first substrate 330 and/or the second substrate 310 away from the liquid crystal layer 16 200938915 338. The preparation method of the liquid crystal display panel 3 provided by the present technical solution has The following advantages: First, since the carbon nanotube layer as the alignment layer itself has a very uniform small gap, so that the fixed layer formed on the carbon nanotube layer has minute grooves, which can be Liquid crystal molecules are aligned so that no An additional process allows the alignment layer to have minute trenches, which reduces the fabrication cost of the alignment layer and simplifies the fabrication process. Second, since the fixed layer covers the surface of the carbon nanotube layer, the fixed layer can be compared. The carbon nanotube layer is well fixed on the surface of the substrate to form an alignment layer. The alignment layer does not separate from the liquid crystal material or when it is in contact with the outside for a long time, so the alignment layer can be used for the alignment layer. The liquid crystal display screen of the above-mentioned alignment layer has better alignment quality. In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. The invention is not limited to the preferred embodiment of the present invention, and the scope of the patent application is not limited thereto. Any equivalent modifications or variations made by those skilled in the art to the spirit of the present invention should be covered by the following patent applications. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a prior art liquid crystal display screen. Fig. 2 is a liquid crystal display screen according to an embodiment of the present technical solution. Figure 3 is a schematic view showing the structure of a liquid crystal display panel obtained by the embodiment of the present invention. 17 100, 300 102 104, 322 106 108, 324 1082, 328 110 112, 302 114 116, 304 1162, 308 118, 338 1182 200938915 [Description of main components] LCD first polarizer* first substrate first transparent electrode layer first alignment layer first trench 0 second polarizer second substrate second transparent electrode layer Second alignment layer second trench liquid crystal layer liquid crystal molecule second pinned layer 304a Ο second carbon nanotube layer 304b second substrate 310 first pinned layer 324a first carbon nanotube layer 324b first substrate 330 18