TW201001028A - Manufacturing method of alignment film and manufacturing method of liquid crystal display panel - Google Patents

Manufacturing method of alignment film and manufacturing method of liquid crystal display panel Download PDF

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TW201001028A
TW201001028A TW97124623A TW97124623A TW201001028A TW 201001028 A TW201001028 A TW 201001028A TW 97124623 A TW97124623 A TW 97124623A TW 97124623 A TW97124623 A TW 97124623A TW 201001028 A TW201001028 A TW 201001028A
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Taiwan
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substrate
liquid crystal
layer
manufacturing
curable material
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TW97124623A
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Chinese (zh)
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TWI372922B (en
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Hang-Lian Lee
Cheng-Hsu Chuang
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Chi Mei Optoelectronics Corp
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Priority to TW097124623A priority Critical patent/TWI372922B/en
Priority to US12/493,411 priority patent/US8163199B2/en
Publication of TW201001028A publication Critical patent/TW201001028A/en
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Publication of TWI372922B publication Critical patent/TWI372922B/en

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Abstract

A manufacturing method of alignment film of liquid crystal display (LCD) panel includes the following steps: forming a curable material layer on a first substrate, wherein the curable material has a side-chain structure; assembling the first substrate with a second substrate so that the curable material layer faces the second substrate; filling with a liquid crystal (LC) layer between the first substrate and the second substrate, and the LC layer contacts the curable material layer; supplying an electric field for driving liquid crystal molecules inside the liquid crystal layer to rotate and by the direction of electric field and orientation of liquid crystal molecules, inducing the side-chain structure in the curable material layer to a predetermined direction; and curing the curable material layer to make the side-chain in curable material layer cross-linked and cured; and influencing the other kind of side chain in curable material layer to limit the orientation of liquid crystal molecule to make curable material layer with an alignment property.

Description

201001028 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種配向膜的製造方法,特別關於一種 應用於液晶顯示面板之配向膜的製造方法。 【先前技術】 液晶顯示裝置(Liquid Crystal Display, LCD)因其體 型輕薄、低功率消耗及無輪射等優越特性,已經遂漸地取 代傳統陰極射線管(Cathode Ray Tube,CRT)顯示裳置, 並且應用至各式電子產品。對液晶顯示裝置而言,如何簡 化製程及節省製造成本一直是亟待解決的重點。 一般而言,液晶顯示裝置之製程主要包括陣列製程 (Array Process)、面板製程(Cell Pr〇cess)及模組製程 (Module Process)。其中,陣列製程主要係在一坡螭基板 上形成電極圖案及薄膜電晶體而製成一薄膜電晶體基 板。面板製程主要係在薄膜電晶體基板及彩色濾光基板上 形成配向膜,再將兩基板對位貼合、填充液晶並貼合偏光 板而製成一液晶顯示面板。最後,模組製程係將液晶顯示 面板加上驅動電路並與背光模組組裝成一液晶顯示裝置。 圖1係顯示在面板製程中形成配向膜之流程步驟。形 成配向膜之步驟係包含塗佈(Dispensing ) s〇1、烘烤 (Baking) S02、配向(Aligning) s〇3 及洗淨(⑶—吨) S04。首先,步驟SOI係在兩基板上分別塗佈聚亞醯胺 (Polyimide,PI)作為配向膜之材料。步驟s〇2係藉由燒 201001028 成爐以進行烘烤,使配向膜熱硬化。然後,步驟S03係在 已熱硬化的配向膜上,利用配向設備(例如滾輪)依據一 預定方向加以摩擦(rubbing )以形成凹痕。最後,步驟S04 係藉由洗淨設備將兩基板洗淨。如此,配向膜上就具有一 定方向的凹痕及角度,可使液晶分子依循排列。當二基板 皆形成配向膜後,便可進行後續的面板製程,將二基板對 位貼合,並填充液晶。 由於習知技術係採用接觸方式來形成配向膜,即摩擦 配向膜以形成凹痕,所以在過程中會殘留粉屑,以致需要 洗淨設備來洗淨,因而增加製程步驟及成本。另外,在摩 擦時亦可能會產生其他無法預期的凹痕或刮傷而降低良 率,而磨擦所引起的靜電問題也容易造成對基板上電路的 破壞。此外^配向設備亦會提南生產成本。 因此,如何提供一種液晶顯示面板之配向膜的製造方 法及液晶顯示面板的製造方法,能夠簡化製程並降低生產 成本,實為重要課題之一。 【發明内容】 有鑑於上述課題,本發明之目的為提供一種能夠簡化 製程並降低生產成本之液晶顯示面板之配向膜的製造方 法及液晶顯示面板的製造方法。 為達上述目的,依本發明之一種液晶顯示面板之配向 膜的製造方法包含下列步驟:形成一可固性材料層於一第 一基板上,可固性材料具有一侧鏈結構;對位貼合第一基 201001028 板與一第二基板,可固性材料層面向第二基板;填充一液 晶層於第一基板與第二基板之間,液晶層與可固性材料層 接觸;施加一電場以驅動液晶分子轉動,並藉由液晶分子 轉動與電場作用帶動可固性材料層内的侧鏈結構,使得侧 鏈結構傾倒向一預定方向;以及固化可固性材料層使侧鏈 結構鍵結固化,並影響另一侧鏈分子限制液晶分子的排 列,使其具有一液晶配向性。 為達上述目的,依本發明之一種液晶顯示面板的製造 方法包含下列步驟:形成一第一可固性材料層於一第一基 板上,第一可固性材料具有一第一侧鏈結構;形成一第二 可固性材料層於一第二基板上,第二可固性材料具有一第 二侧鏈結構;對位貼合第一基板與第二基板,第一可固性 材料層面向第二可固性材料層;填充一液晶層於第一基板 與第二基板之間,液晶層與第一可固性材料層及第二可固 性材料層接觸;施加一第一電場驅動液晶分子轉動,並藉 由液晶分子轉動與電場作用帶動可固性材料層内的侧鏈 結構,使得侧鏈結構傾倒至第一預定方向;以及固化第一 可固性材料層内之側鏈結構;受已鍵結固化之侧鏈結構之 影響,使得另一侧鏈結構可限制液晶分子的排列使其具有 一第一液晶配向性。 承上所述,依本發明之一種液晶顯示面板之配向膜的 製造方法及液晶顯示面板的製造方法係形成可固性材料 層於基板上’且可固性材料具有侧鍵結構。當施加電場 時,液晶分子受電場驅動而轉動,並藉由液晶分子轉動與 201001028 電場作用帶動可固性材料層内的側鏈結構,而傾倒至所需 要之方向;再固化可固性材料層,使得侧鏈結構固定而朝 向預定方向;受已鍵結固化之側鏈結構之影響,使得另一 側鏈結構可限制液晶分子的排列。如此,可固性材料層便 具有液晶配向性,可使液晶依循排列。與習知技術相較, 本發明使用非接觸方式形成配向膜,而不會殘留粉屑及無 法預期的凹痕或刮傷。因此,在形成配向膜後,不需洗淨 且良率大大提高,且避免磨擦所引起的靜電問題。此外, 本發明亦不需配向設備來形成配向膜,而能夠簡化製程並 降低成本。 【實施方式】 以下將參照相關圖式,說明依本發明較佳實施例之一 種液晶顯示面板之配向膜的製造方法及液晶顯示面板的 製造方法,其中相同的元件將以相同的參照符號加以說 明。 圖2係為本發明較佳實施例之一種液晶顯示面板的製 造方法之流程圖。在本實施例中,製造方法主要包含步驟 S11至步驟S16。以下配合圖3A至圖3D說明本實施例之 製造方法。 如圖2及圖3A所示,步驟S11係形成一可固性材料 層21於一基板22上,其中可固性材料具有一侧鏈結構 A1。步驟S12係形成另一可固性材料層26於另一基板23 上,其中另一可固性材料具有另一侧鏈結構A2。在本實施 201001028 例中,基板22、23係可分別為薄膜電晶體基板(TFT substrate )及彩色濾、光基板(CF substrate ),或是基板22、 2 3係分別為彩色滤光基板及薄膜電晶體基板。於此 > 基板 2 2係以薄膜電晶體基板’基板2 3'係以彩色渡光基板為例。 在本實施例中,可固性材料層21、26係可藉由旋轉 塗佈(spin coating )方式或是藉由印刷(printing )方式, 而分別形成於基板22、23上。可固性材料之主鏈係可為 高分子材料,在此以聚亞龜胺(polyimide, PI)為例。侧 鏈結構Al、A2可限制液晶分子的倒向(orientation ),即 配向液晶分子,其結構可如下所示之其一,201001028 IX. Description of the Invention: The present invention relates to a method for producing an alignment film, and more particularly to a method for producing an alignment film applied to a liquid crystal display panel. [Prior Art] Liquid crystal display (LCD) has gradually replaced the traditional cathode ray tube (CRT) display due to its superior size, low power consumption and no-rotation. And applied to a variety of electronic products. For liquid crystal display devices, how to simplify the process and save manufacturing costs has always been the focus of urgent solution. Generally, the process of the liquid crystal display device mainly includes an Array Process, a Cell Process, and a Module Process. Among them, the array process mainly forms an electrode pattern and a thin film transistor on a slab substrate to form a thin film transistor substrate. The panel process mainly forms an alignment film on the thin film transistor substrate and the color filter substrate, and then the two substrates are aligned, filled with liquid crystal, and bonded to the polarizing plate to form a liquid crystal display panel. Finally, the module process adds a driving circuit to the liquid crystal display panel and assembles the backlight module into a liquid crystal display device. Figure 1 shows the flow steps for forming an alignment film in a panel process. The steps of forming the alignment film include coating (Dispensing) s1, baking (Sake) S02, alignment (Aligning) s〇3, and washing ((3)-ton) S04. First, the step SOI is applied with polyimide (PI) as a material of the alignment film on each of the substrates. Step s〇2 is baked by firing 201001028 to heat-harden the alignment film. Then, step S03 is rubbed on a thermally hardened alignment film by means of an alignment device (e.g., a roller) in accordance with a predetermined direction to form a dent. Finally, in step S04, the two substrates are washed by a cleaning device. Thus, the alignment film has indentations and angles in a certain direction, so that the liquid crystal molecules can be aligned. After the two substrates are formed with the alignment film, the subsequent panel process can be performed, the two substrates are aligned and filled with liquid crystal. Since the prior art uses a contact method to form an alignment film, i.e., a rubbing alignment film to form a dent, powder remains in the process, so that the cleaning equipment is required to be washed, thereby increasing the number of steps and costs. In addition, other unintentional dents or scratches may occur during friction to reduce the yield, and electrostatic problems caused by friction may also cause damage to the circuit on the substrate. In addition, the matching equipment will also increase the production cost of the South. Therefore, it is an important subject to provide a method for producing an alignment film of a liquid crystal display panel and a method for manufacturing a liquid crystal display panel, which can simplify the process and reduce the production cost. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a method for producing an alignment film of a liquid crystal display panel and a method for manufacturing a liquid crystal display panel which can simplify the process and reduce the production cost. In order to achieve the above object, a method for manufacturing an alignment film of a liquid crystal display panel according to the present invention comprises the steps of: forming a layer of a curable material on a first substrate; the curable material has a side chain structure; a first base 201001028 board and a second substrate, the curable material layer facing the second substrate; filling a liquid crystal layer between the first substrate and the second substrate, the liquid crystal layer contacting the layer of the curable material; applying an electric field Driving the liquid crystal molecules to rotate, and driving the side chain structure in the layer of the curable material by the rotation of the liquid crystal molecules and the electric field, so that the side chain structure is tilted to a predetermined direction; and curing the layer of the solid material to bond the side chain structure Curing and affecting the other side chain molecules restrict the alignment of the liquid crystal molecules to have a liquid crystal alignment. In order to achieve the above object, a method for fabricating a liquid crystal display panel according to the present invention comprises the steps of: forming a first layer of a curable material on a first substrate, the first curable material having a first side chain structure; Forming a second layer of a curable material on a second substrate, the second curable material having a second side chain structure; aligning the first substrate and the second substrate in a position, the first layer of the curable material facing a second layer of a curable material; filling a liquid crystal layer between the first substrate and the second substrate; the liquid crystal layer is in contact with the first layer of the curable material and the second layer of the curable material; applying a first electric field to drive the liquid crystal The molecules rotate, and the side chain structure in the layer of the curable material is driven by the rotation of the liquid crystal molecules and the electric field, so that the side chain structure is tilted to the first predetermined direction; and the side chain structure in the first layer of the curable material is cured; Under the influence of the bonded-cured side chain structure, the other side chain structure can restrict the alignment of the liquid crystal molecules to have a first liquid crystal alignment property. As described above, a method of manufacturing an alignment film of a liquid crystal display panel and a method of manufacturing a liquid crystal display panel according to the present invention form a layer of a curable material on a substrate, and the curable material has a side bond structure. When an electric field is applied, the liquid crystal molecules are driven to rotate by the electric field, and the liquid crystal molecules rotate to interact with the electric field of 201001028 to drive the side chain structure in the layer of the curable material, and are poured to the desired direction; and the layer of the curable material is cured. The side chain structure is fixed to face in a predetermined direction; affected by the side chain structure which has been bonded and cured, the other side chain structure can restrict the arrangement of liquid crystal molecules. Thus, the layer of the curable material has a liquid crystal alignment property, and the liquid crystals can be arranged in a row. In contrast to the prior art, the present invention uses a non-contact manner to form an alignment film without residual dust and unintended dents or scratches. Therefore, after the alignment film is formed, no cleaning is required and the yield is greatly improved, and the static problem caused by the friction is avoided. In addition, the present invention does not require an alignment device to form an alignment film, which simplifies the process and reduces the cost. [Embodiment] Hereinafter, a method for manufacturing an alignment film of a liquid crystal display panel and a method for manufacturing a liquid crystal display panel according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals. . 2 is a flow chart showing a method of fabricating a liquid crystal display panel in accordance with a preferred embodiment of the present invention. In the present embodiment, the manufacturing method mainly includes steps S11 to S16. The manufacturing method of this embodiment will be described below with reference to Figs. 3A to 3D. As shown in Fig. 2 and Fig. 3A, step S11 forms a layer 21 of a curable material on a substrate 22, wherein the curable material has a side chain structure A1. Step S12 forms another layer of curable material 26 on the other substrate 23, wherein the other curable material has another side chain structure A2. In the embodiment of 201001028, the substrates 22 and 23 may be a TFT substrate, a color filter, or a CF substrate, or the substrates 22 and 23 are respectively a color filter substrate and a film. A crystal substrate. Here, the substrate 2 2 is a thin film transistor substrate '3', and a color light-emitting substrate is taken as an example. In the present embodiment, the curable material layers 21, 26 can be formed on the substrates 22, 23, respectively, by spin coating or by printing. The main chain of the curable material may be a polymer material, and polyimide (PI) is exemplified here. The side chain structures Al, A2 may limit the orientation of the liquid crystal molecules, that is, the alignment liquid crystal molecules, and the structure thereof may be one of the following.

其中,侧鏈結構Al、A2係雜亂地排列。 另外,可固性材料層21亦包含另一侧鏈結構B1,可 固性材料層26亦包含另一侧鏈結構B2,B1與B2具有類 201001028 液晶分子之結構,會受電場方向及強度改變其傾倒方向 亦會叉周圍液晶分子之轉動而改變其傾倒方向 mm時具有光固性與熱固性;即受光與受熱會相。互募 鍵結(cross-lmk)固化。側鏈結構m、β2可如下所示,Among them, the side chain structures Al and A2 are arranged in a disorderly manner. In addition, the curable material layer 21 also includes another side chain structure B1, and the curable material layer 26 also includes another side chain structure B2, and B1 and B2 have a structure of liquid crystal molecules like 201001028, which are subject to changes in electric field direction and strength. The tilting direction also has the photostability and thermosetting property when the liquid crystal molecules around the fork rotate to change the tilting direction mm; that is, the light receiving and heating are phased. Mutual cross-lmk curing. The side chain structures m and β2 can be as follows.

(.,》)«.——Y ,、中,X 可為 benzyl group, cylco-hexyl group,-C00-,-0-, -CH2-。m 可為-C00-,-〇_,_CH2_ Q r 可為 H,F, cf3, OCF3。 n為自然數。γ的結構如下所示, 201001028(., ") «. - Y , , , , X can be benzyl group, cylco-hexyl group, -C00-,-0-, -CH2-. m can be -C00-, -〇_, _CH2_ Q r can be H, F, cf3, OCF3. n is a natural number. The structure of γ is as follows, 201001028

o 步驟S13係對位貼合基板22、23,其中,可固性材料 層21面向另一可固性材料層26。在此步驟中,可先將框 膠形成於基板22上,再散佈間隔體於基板22上,然後再 將二基板貼合。在貼合二基板之後,製造方法更可包含熱 固化或光固化框膠(例如:UV光固化膠),使二基板緊密 貼合。 如圖2及圖3B所示,步驟S14係填充一液晶層24於 二基板22、23之間。其中,液晶層24與該等可固性材料 層21、26接觸。在此步驟中,藉由液晶注入/封口設備將 液晶注入並進行封口.,如此就可將液晶層24限制在二基 板22、23及框膠之間。另外,液晶材料係使用一垂直配 12 201001028 向型(vertical alignment)液晶、或一負介電異方型液晶。 在填充液晶層之後,就可將偏光板貼合於二基板22、23 的外表面,然後進行模組製程以將控制電路電性連接基板 22而製成一液晶顯示面板。步驟S13與步驟S14順序可以 顛倒,即在步驟S14應用液晶滴下注入法(ODF, one drop fill);可先將液晶滴入基板22或基板23其一,接著在該 基板或另一相對基板上塗布熱固化或光固化框膠,可使二 基板緊密貼合,接著進行步驟S13對位貼合基板。· 之後,如圖2及圖3C所示,步驟S15係施加一電場 以驅動液晶層2 4内之液晶分子L C轉動’並精由液晶分子 LC轉動與電場作用帶動可固性材料層21與26内之侧鏈 結構B1,B2傾倒向一預定方向。 在施加電場的同時,步驟S16係固化可固性材料層21 與26使其具有一配向性。詳細而言,在步驟S16中,可 固性材料層21中之侧鏈結構Bl,B2係藉由紫外光UV照 射而鍵結(cross link)固化。如此,側鏈結構A1與A2 係受已鍵結之侧鏈結構Bl,B2影響,固定在特定方向且 因側鏈結構A1與A2具有方向性,使得液晶分子可受其限 制依循排列,可固化材料層即具有一液晶配向性。上述固 化製程也可採用熱固化製程,即將基板進入烤爐内烘烤, 使侧鏈結構Bl,B2受熱而鍵結固化。 另一實施例,如圖3D與圖3E所示,製造方法更包含 分區鍵結固化侧鏈結構B1與B2以製造一多區液晶配向的 配向膜及液晶顯示面板。在此實施例中,施加一特定方向 13 201001028 或強度的電場以驅動液晶層24内之液晶分子LC轉動,並 藉由液晶分子LC轉動與電場作用帶動侧鏈結構B1與B2 傾倒向一預定方向,接著藉由一光罩Μ使指定區域A内 之可固性材料層21與26中之側鏈結構B1與B2受紫外光 UV照射而鍵結(cross link)固化。如此,侧鏈結構A1與 A2係受已鍵結之侧鏈結構Bl,B2影響,固定在第一特定 方向且因侧鏈結構A1與A2具有方向性,使得液晶分子可 受其限制依循排列,可固化材料層即具有第一液晶配向 性。之後,施加另一特定方向或強度的電場以驅動液晶層 24内之液晶分子LC轉動,並藉由液晶分子LC轉動與電 場作用帶動區域B中未鍵結之側鏈結構ΒΓ與B2’傾倒向 另一預定方向,接著以紫外光UV使ΒΓ與B2’鍵結固化。 侧鏈結構A1’與A2’係受已鍵結之侧鏈結構ΒΓ,B2’影 響,固定在第二特定方向因側鏈結構A1與A2具有方向 性,使得液晶分子可受其限制依循排列,可固化材料層即 具有第二液晶配向性。 綜上所述,依本發明之一種液晶顯示面板之配向膜的 製造方法及液晶顯示面板的製造方法係形成可固性材料 層於基板上,且可固性材料具有側鏈結構。當施加電場 時,液晶分子受電場驅動而轉動,並藉由液晶分子轉動與 電場作用帶動側鏈結構,使得側鏈結構傾倒至所需要之方 向;再固化可固性材料層,使得側鏈結構鍵結固化而朝向 預定方向;受已鍵結固化之侧鏈結構之影響,使得另一侧 鏈結構可限制液晶分子的排列。如此,可固性材料層便具 14 201001028 有配向性,可使液晶依循排列。與習知技術相較,本發明 使用非接觸方式形成配向膜,而不會殘留粉屑及無法預期 的凹痕或刮傷。因此,在形成配向膜後,不需洗淨且良率 大大提高,且避免磨擦所引起的靜電問題。此外,本發明 亦不需配向設備來形成配向膜,而能夠簡化製程並降低成 本。 以上所述僅為舉例性,而非為限制性者。任何未脫離 本發明之精神與範壽,而對其進行之等效修改或變更,均 應包含於後附之申請專利範圍中。 [圖式簡單說明】 圖1為習知在面板製程中形成配向膜的流程圖; 圖2為依據本發明較佳實施例之一種液晶顯示面板及 其配向膜之製造方法的流程圖;以及 圖3A至圖3E為圖2之製造方法的示意圖。 【主要元件符號說明】 21、 26 :可固性材料層 22、 23 :基板 24 :液晶層o Step S13 is a counter-alignment substrate 22, 23 in which the curable material layer 21 faces the other curable material layer 26. In this step, the mask may be formed on the substrate 22, the spacers may be spread on the substrate 22, and then the two substrates may be bonded together. After the two substrates are bonded, the manufacturing method may further comprise a heat-curing or photo-curing sealant (for example, a UV-curable adhesive) to closely bond the two substrates. As shown in Figs. 2 and 3B, step S14 fills a liquid crystal layer 24 between the two substrates 22, 23. Among them, the liquid crystal layer 24 is in contact with the layers 21 and 26 of the curable materials. In this step, the liquid crystal is injected and sealed by a liquid crystal injection/sealing device, so that the liquid crystal layer 24 can be confined between the two substrates 22, 23 and the sealant. Further, the liquid crystal material uses a vertical alignment 12 201001028 vertical alignment liquid crystal or a negative dielectric anisotropy liquid crystal. After filling the liquid crystal layer, the polarizing plate can be bonded to the outer surfaces of the two substrates 22, 23, and then the module process is performed to electrically connect the control circuit to the substrate 22 to form a liquid crystal display panel. The steps S13 and S14 may be reversed, that is, the liquid crystal drop injection method (ODF, one drop fill) may be applied in step S14; the liquid crystal may be dropped into the substrate 22 or the substrate 23 first, and then on the substrate or another opposite substrate. The heat-cured or light-cured frame glue is applied to make the two substrates closely adhere to each other, and then the step S13 is applied to the substrate. Then, as shown in FIG. 2 and FIG. 3C, step S15 applies an electric field to drive the liquid crystal molecules LC in the liquid crystal layer 24 to rotate 'and the liquid crystal molecules LC rotate and the electric field acts to drive the solid material layers 21 and 26 The inner side chain structures B1, B2 are dumped in a predetermined direction. While applying an electric field, step S16 cures the layers 21 and 26 of the curable material to have an alignment property. In detail, in step S16, the side chain structures B1, B2 in the curable material layer 21 are cross-linked and cured by ultraviolet light UV irradiation. Thus, the side chain structures A1 and A2 are affected by the bonded side chain structures B1, B2, fixed in a specific direction and have directionality due to the side chain structures A1 and A2, so that the liquid crystal molecules can be arranged in a constrained manner, and can be cured. The material layer has a liquid crystal alignment. The above curing process can also adopt a thermal curing process, that is, the substrate is baked in the oven, and the side chain structures B1 and B2 are heated and bonded and solidified. In another embodiment, as shown in Figs. 3D and 3E, the manufacturing method further comprises partitioning the cured side chain structures B1 and B2 to fabricate a multi-region liquid crystal alignment alignment film and a liquid crystal display panel. In this embodiment, an electric field of a specific direction 13 201001028 or intensity is applied to drive the liquid crystal molecules LC in the liquid crystal layer 24 to rotate, and the side chain structures B1 and B2 are tilted to a predetermined direction by the rotation of the liquid crystal molecules LC and the electric field. Then, the side chain structures B1 and B2 in the curable material layers 21 and 26 in the designated area A are subjected to ultraviolet light UV irradiation to be cross-linked and cured by a mask. Thus, the side chain structures A1 and A2 are affected by the bonded side chain structures B1, B2, are fixed in the first specific direction and have directionality due to the side chain structures A1 and A2, so that the liquid crystal molecules can be arranged in accordance with their restrictions. The layer of curable material has a first liquid crystal alignment. Thereafter, an electric field of another specific direction or intensity is applied to drive the liquid crystal molecules LC in the liquid crystal layer 24 to rotate, and the unbonded side chain structure ΒΓ and B2' are dumped in the region B by the rotation of the liquid crystal molecules LC and the electric field. In another predetermined direction, the ΒΓ and B2' bonds are then cured by UV light UV. The side chain structures A1' and A2' are affected by the bonded side chain structure ΒΓ, B2', and are fixed in the second specific direction because the side chain structures A1 and A2 have directionality, so that the liquid crystal molecules can be arranged according to their restrictions. The layer of curable material has a second liquid crystal alignment. As described above, the method for producing an alignment film of a liquid crystal display panel and the method for fabricating the liquid crystal display panel according to the present invention form a layer of a curable material on a substrate, and the curable material has a side chain structure. When an electric field is applied, the liquid crystal molecules are driven to rotate by the electric field, and the side chain structure is driven by the rotation of the liquid crystal molecules and the electric field, so that the side chain structure is tilted to the desired direction; the layer of the solid material is re-hardened to make the side chain structure The bond is cured to a predetermined direction; affected by the side chain structure that has been bonded and cured, the other side chain structure can limit the alignment of the liquid crystal molecules. Thus, the layer of the curable material has an alignment property, so that the liquid crystal can be arranged in a row. In contrast to the prior art, the present invention uses a non-contact manner to form an alignment film without residual dust and unintentional dents or scratches. Therefore, after the formation of the alignment film, no cleaning is required and the yield is greatly improved, and the static problem caused by the friction is avoided. In addition, the present invention does not require an alignment device to form an alignment film, which simplifies the process and reduces the cost. The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations of the present invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of forming an alignment film in a panel process; FIG. 2 is a flow chart showing a method of fabricating a liquid crystal display panel and an alignment film thereof according to a preferred embodiment of the present invention; 3A to 3E are schematic views of the manufacturing method of FIG. 2. [Description of main component symbols] 21, 26: layer of curable material 22, 23: substrate 24: liquid crystal layer

Al、A2 :侧鏈結構 Bl、B2 :侧鏈結構 S01〜S04:習知形成配向膜的流程步驟 S11〜S16 :液晶顯示面板的製造方法之流程步驟 15 201001028 Μ :光罩 16Al, A2: side chain structure Bl, B2: side chain structure S01 to S04: a process step for forming an alignment film S11 to S16: process steps of a method for manufacturing a liquid crystal display panel 15 201001028 Μ : reticle 16

Claims (1)

201001028 十、申請專利範圍: 1、 一種液晶顯示面板之配向膜的製造方法,包含下列步 驟: 形成一光固性材料層於一第一基板上,該光固性材料 具有一側鏈結構; 對位貼合該第一基板與一第二基板,該光固性材料層 面向該第二基板, 填充一液晶層於該第一基板與該第二基板之間,該液 晶層與該光固性材料層接觸; 施加一電場以驅動該液晶層内之液晶分子轉動而帶動 該侧鏈結構朝向一預定方向;以及 光固化該光固性材料層使其具有一配向性。 2、 如申請專利範圍第1項所述之製造方法,其中該光固 性材料係為高分子材料。 3、 如申請專利範圍第2項所述之製造方法,其中該高分 子材料係為光阻材料。 4、 如申請專利範圍第3項所述之製造方法,其中該光阻 材料係為聚亞臨胺。 5、 如申請專利範圍第1項所述之製造方法,其中該光固 性材料層係藉由旋轉塗佈方式而形成。 6、 如申請專利範圍第1項所述之製造方法,其中該光固 性材料層係藉由紫外光照射而固化。 7、 如申請專利範圍第1項所述之製造方法,其中該第一 基板係為薄膜電晶體基板’該弟二基板係為彩色遽光 17 201001028 基板。 8、 如申請專利範圍第丨項所述之 基板係為彩色滹光美板,> μ ',,、中該第 晶體 基板。色細板’该弟二基板係為薄膜電 9、 -種液晶顯示面板的製造方法,包含下列 形成-第-光固性材料層於—第一基板上,該 固性材料具有一第—側鍵結構; 先 形成一第二光固性材料層於—第二基板上 固性材料具有—第二侧鏈結構; 先 對位貼合該第一基板盘兮笛_ |^ 料展基板’㈣—光固性材 枓層面向該第二光固性材料層; 填,—液晶層於該第一基板與該第二基板之間,該液 曰曰層與該第—光固性材料層及該第二光固性材料層 接觸; a 靶t —第—電場以驅動該液晶層内之液晶分子轉動而 、/動戎第一側鏈結構朝向一第一預定方向;以及 光固化該第—光固性材料層使其具有一第—配向性。 '如申請專利範圍第9項所述之製造方法,其中該第— “口 1*生材料及5亥第二光固性材料係為而分子材料。 1如申凊專利範圍第10項所述之製造方法,其中該高 分子材料係為光阻材料。 1 ? 、如申請專利範圍第11項所述之製造方法,其中該光 阻材料係為聚亞醯胺。 13 如申請專利範圍第9項所述之製造方法,其中該第一 18 201001028 性材料層係藉由旋轉塗 光固性材料層及該第二光固 佈方式而形成。 14、 如申清專利範圍第9項所述之 步驟: 製造方法,更包含下列 二第—電場以驅動該液晶層内之液晶分子轉動 而讀該第二侧鏈結構朝向—第二預定方向;以及 15 先固化該第二光固性材料層使其具有—第二配向性。 如申請專利範圍第14項所述之製造方法,其中該第 -光固性材料層及該第二光固性材料層係藉 光照射而固化。 η 16、 如中料利範圍第14項所述之製造方法,㈠ 一配向性係與該第二配向性不相同。 χ 17、 如申請專利範圍第9項所述之製造方法,其中該第一 =係為薄膜電晶體基板,該第二基板係為彩色渡光 18'如申請專利範圍第9項所述之製造方法,其中該第 基板係為彩色瀘'絲板,該第二基板係為薄膜電晶 基板。 19201001028 X. Patent application scope: 1. A method for manufacturing an alignment film of a liquid crystal display panel, comprising the steps of: forming a photo-curable material layer on a first substrate, the photo-curable material having a side chain structure; Positioning the first substrate and a second substrate, the photo-curable material layer facing the second substrate, filling a liquid crystal layer between the first substrate and the second substrate, the liquid crystal layer and the photo-curing property Contacting the material layer; applying an electric field to drive the liquid crystal molecules in the liquid crystal layer to rotate to drive the side chain structure toward a predetermined direction; and photocuring the photo-curable material layer to have an alignment property. 2. The manufacturing method according to claim 1, wherein the photocurable material is a polymer material. 3. The manufacturing method of claim 2, wherein the high molecular material is a photoresist material. 4. The method of manufacturing according to claim 3, wherein the photoresist material is a polyimene. 5. The manufacturing method according to claim 1, wherein the photocurable material layer is formed by spin coating. 6. The method of manufacturing of claim 1, wherein the layer of photocurable material is cured by irradiation with ultraviolet light. 7. The manufacturing method according to claim 1, wherein the first substrate is a thin film transistor substrate, and the second substrate is a color phosphor 17 201001028 substrate. 8. The substrate according to the scope of the patent application is a color glazing board, > μ ',, and the first crystal substrate. The color thin plate 'the second substrate is a thin film electric 9 - a method for manufacturing a liquid crystal display panel, comprising the following - forming a first - photo-curable material layer on the first substrate, the solid material having a first side a key structure; first forming a second layer of photo-curable material on the second substrate; the solid material has a second side chain structure; firstly aligning the first substrate with a flute _ | ^ material substrate [4] The photo-curable material layer faces the second photo-curable material layer; and the liquid crystal layer is between the first substrate and the second substrate, the liquid helium layer and the first photo-curable material layer and The second photo-curable material layer is in contact; a target t-the first electric field drives the liquid crystal molecules in the liquid crystal layer to rotate, the first side chain structure is oriented toward a first predetermined direction; and the photo-curing the first- The layer of photohardenable material has a first-alignment property. The manufacturing method according to claim 9, wherein the first--"1" raw material and the 5 second second photo-curable material are molecular materials. 1 as claimed in claim 10 The manufacturing method of the present invention, wherein the polymer material is a photoresist material. The manufacturing method according to claim 11, wherein the photoresist material is polyamidamine. The method of manufacturing the first 18 201001028 material layer is formed by a layer of a spin-coating photo-curable material and the second light-fixing method. 14. As described in claim 9 of the patent scope Step: a manufacturing method, further comprising: a second electric field to drive the liquid crystal molecules in the liquid crystal layer to rotate to read the second side chain structure toward the second predetermined direction; and 15 to cure the second photo-curable material layer first The manufacturing method according to claim 14, wherein the first photo-curable material layer and the second photo-curable material layer are cured by light irradiation. η 16, such as Medium material range 14th In the manufacturing method, the (i) an aligning system is different from the second aligning property. The manufacturing method according to claim 9, wherein the first = is a thin film transistor substrate, the first The second substrate is a color 泸' silk plate, and the second substrate is a thin film electro-crystalline substrate. The second substrate is a thin film electro-crystalline substrate.
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CN102402069A (en) * 2011-11-11 2012-04-04 深圳市华星光电技术有限公司 Method of preparing alignment film for LCD (liquid crystal display) panel
CN102985872A (en) * 2010-03-16 2013-03-20 汉阳大学校产学协力团 Liquid crystal display with an alignment control layer containing polymerized mesogen and a manufacturing method of the liquid crystal display
TWI601757B (en) * 2010-02-26 2017-10-11 日產化學工業股份有限公司 Liquid crystal display element and liquid crystal alignment agent

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CN102985872A (en) * 2010-03-16 2013-03-20 汉阳大学校产学协力团 Liquid crystal display with an alignment control layer containing polymerized mesogen and a manufacturing method of the liquid crystal display
CN102985872B (en) * 2010-03-16 2015-07-01 汉阳大学校产学协力团 Liquid crystal display with an alignment control layer containing polymerized mesogen and a manufacturing method of the liquid crystal display
CN102368126A (en) * 2011-04-29 2012-03-07 友达光电股份有限公司 Blue phase liquid crystal display panel
CN102402069A (en) * 2011-11-11 2012-04-04 深圳市华星光电技术有限公司 Method of preparing alignment film for LCD (liquid crystal display) panel

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