1282029 (1) 玖、發明說明 【發明所屬之技術領域】 本發明乃有關於一種在顯示面板之組裝工程中’以光 硬化型接著劑貼合兩片透光性基板的顯示面板之貼合裝置 【先前技術】 近年來液晶顯示元件的製造方法，像是日本特開平第 9 — 73 096號公報所揭示的，亦爲採用滴下工法（One Drop Fill)。 該工法是先在透光性基板（玻璃基板）上，利用屬於紫 外線硬化樹脂的密封劑形成周圍，且在其中滴下液晶。在 滴下液晶的玻璃基板上，載置別的玻璃基板，穿越該玻璃 基板，對密封劑照射紫外線，使密封劑硬化，貼合兩片玻 璃基板。對密封劑照射紫外線之際，若對液晶照射紫外線 ，爲了使液晶引起分解、特性變化，像是對密封劑以外的 液晶照射紫外線地在紫外線照射裝置的光源與玻璃基板之 間設置遮光罩，來照射紫外線。 是表示有關習知技術的顯示面板之貼合裝置之 一例的圖。 如同圖所示’該貼合裝置乃屬於在工作台面上載置挾 持密封劑所形成的兩片玻璃基板，就其上部而言，位於前 述密封劑的位置是用透光部所形成，相當於以前述密封劑 塡充周圍的液晶之位置處，是在遮罩台面的下側利用真空 -4- (2) 1282029 於配置在 遮光罩的 罩台面的 罩台面上 穿透紫外 所形成， 液晶玻璃 述遮光罩 台面之際 要形成比 「保持用 了防止因 ，遮光罩 10mm 左 吸附來保持以遮光部所形成的遮光罩，進而來自 ^遮光罩上部的光照射部的光源（燈具），會透過 透光部對密封劑照射紫外線。 第7圖是表示遮光罩的保持手段，取代在遮 下側以真空吸附來保持第6圖的遮光罩，而在遮 載置遮光罩時的舉例圖。 【發明內容】 [發明欲解決的課題] 如上述，遮光罩是以只在對應密封劑的位置 線的透光部所形成，且除此以外的部分以遮光部 該遮光部一般是用石英板鍍鉻所製成的，但近年 基板逐年大型化，隨著液晶玻璃基板大型化，前 也跟著大型化。 更如第6圖及第7圖所示，遮光罩保持在遮罩 ’需要在遮光罩設置「保持用留邊」，遮光罩需 貼合的玻璃基板更大。而遮光罩爲了確保上述的 留邊」，需要做得比玻璃基板尺寸還大，同時爲 自重引起撓曲，厚度也需要很厚。 其結果例如玻璃基板尺寸爲6 8 0 x 8 8 0mm時 大小需爲8 00〜8 5 0 x 1 0 5 0〜1100mm，厚度爲5〜 右的大小。 而遮光罩與半導體曝光裝置所用的遮罩（標線片）同樣 地’爲了效率良好的穿透紫外線，故採用石英，但石英在 (3) 1282029 玻璃素材中是很昂貴的。進而遮光罩爲 好的平面度，故需要較高的加工精度。 如上述，以較高精度加工大面積的 型的加工裝置和較長時間，有關遮罩的 進而遮光罩不但需要形成玻璃基板的圖 罩成本，於貼合裝置的價格上就非常昂 而遮光罩一旦大型化，就沒有在遮 蒸鍍鉻的裝置，而且也沒有鈾刻蒸鍍的 案的裝置等，就沒有欲在遮光罩形成圖 置。因此，製作該些裝置後，一旦製造 價格就變得極爲昂貴。 本發明的目的乃在於有鑑於上述種 相關遮光罩的成本能變低廉的顯示面板 [欲解決課題的手段] 本發明爲解決上述課題，採用如下 第一手段是對挾持在兩片透光性基 性接著劑照射紫外線，來讓前述兩片透 顯示面板之貼合裝置，其特徵爲具有： 有對應前述紫外線硬化性接著劑的透光 光罩、和以穿透紫外線的構件所形成之 遮罩保持手段、和具有比前述遮光罩更 持前述遮罩保持手段的遮罩台面。 第二手段乃於第一手段中，前述遮 了施行鍍鉻面有良 石英表面，需要大 成本變得非常高。 案數量，光是遮光 貴。 光罩用的石英基板 鉻而形成遮光部圖 案所需要的種種裝 遮光罩，遮光罩的 種問題，而提供一 之貼合裝置。 的手段。 板間的紫外線硬化 光性基板相貼合之 在透光性基板以留 部形成遮光部的遮 保持則述遮光罩的 大的開口部，且保 罩保持手段是以使 -6 - (5) 12820291282029 (1) Technical Field of the Invention The present invention relates to a bonding apparatus for a display panel in which two light-transmitting substrates are bonded together by a photocurable adhesive in an assembly process of a display panel. [Prior Art] In recent years, a method of manufacturing a liquid crystal display element, as disclosed in Japanese Laid-Open Patent Publication No. Hei 9-73 096, is also a one-drop filling method. This method is to form a periphery on a light-transmitting substrate (glass substrate) by using a sealant belonging to an ultraviolet curable resin, and to drop a liquid crystal therein. On the glass substrate on which the liquid crystal was dropped, another glass substrate was placed, and the glass substrate was passed through, and the sealing agent was irradiated with ultraviolet rays to cure the sealant, and the two glass substrates were bonded together. When the ultraviolet ray is applied to the liquid crystal, the liquid crystal is irradiated with ultraviolet rays, and in order to cause decomposition and change in characteristics of the liquid crystal, a hood is provided between the light source of the ultraviolet ray irradiation device and the glass substrate by irradiating the liquid crystal other than the sealing agent with ultraviolet rays. Irradiation of ultraviolet light. It is a view showing an example of a bonding device of a display panel of the prior art. As shown in the figure, the bonding device belongs to two glass substrates formed by placing a sealing agent on a work surface. In the upper portion, the position of the sealing agent is formed by a light transmitting portion, which is equivalent to The sealing agent is filled at the position of the surrounding liquid crystal, and is formed on the underside of the masking surface by vacuum -4- (2) 1282029 on the cover surface disposed on the cover surface of the hood, and the liquid crystal glass is formed. When the hood is placed on the fascia, it is required to form a hood that is held by the hood, and that is occluded by the hood 10 mm to hold the hood, and the light source (lighting unit) from the light illuminating portion of the hood is transparent. The light-emitting portion irradiates the sealing agent with ultraviolet rays. Fig. 7 is a view showing an example of the holding means of the hood, in which the hood of Fig. 6 is held by vacuum suction on the lower side, and the hood is placed. [Problem to be Solved by the Invention] As described above, the hood is formed by a light-transmitting portion only at a position line corresponding to the sealant, and the other portion is a light-shielding portion. It is made of chrome plated with quartz plate, but in recent years, the substrate has been enlarged year by year. As the liquid crystal glass substrate has become larger, it has also been enlarged as before. As shown in Figures 6 and 7, the hood is kept in the mask. In the hood, the "holding edge for holding" is set, and the glass substrate to which the hood is to be attached is larger. In order to ensure the above-mentioned margin, the hood needs to be made larger than the size of the glass substrate, and at the same time, it is deflected by its own weight, and the thickness needs to be thick. As a result, for example, when the size of the glass substrate is 680×8 8 0 mm, the size is required to be 8 00 to 8 5 0 x 1 0 5 0 to 1100 mm, and the thickness is 5 to the right. The hood is similar to the mask (the reticle) used in the semiconductor exposure apparatus. Therefore, quartz is used for efficiently penetrating ultraviolet rays, but quartz is expensive in (3) 1282029 glass material. Furthermore, the hood is good in flatness, so high machining accuracy is required. As described above, processing a large-area processing apparatus with a high degree of precision and for a long period of time, the hood of the mask not only requires the cost of forming a glass substrate, but also the price of the bonding apparatus is very high. Once the size is increased, there is no device for chrome plating, and there is no device for uranium vapor deposition, and there is no desire to form a hood. Therefore, after the devices are manufactured, they become extremely expensive once they are manufactured. An object of the present invention is to provide a display panel in which the cost of the above-described related hood can be reduced. [Means for Solving the Problems] In order to solve the above problems, the present invention adopts the following first means for holding two light-transmitting groups. The bonding agent which irradiates ultraviolet rays to the two-piece transmissive display panel, and has a light-transmitting mask corresponding to the ultraviolet curable adhesive and a mask formed by a member penetrating ultraviolet rays. The holding means and the masking table having the mask holding means further than the hood. The second means is that in the first means, the aforementioned chrome-plated surface has a good quartz surface, and the cost is extremely high. The number of cases is light and expensive. The quartz substrate for the mask is made of chrome to form various hoods and hoods required for the light-shielding pattern, and a bonding apparatus is provided. s method. The ultraviolet-curable optical substrate between the plates is bonded to each other, and the light-shielding substrate is formed to have a large opening portion of the light-shielding cover, and the cover holding means is such that -6 - (5) 1282029
於同一裝置中，藉由真空配管5在光源（燈具）10與遮 光罩3間存在不透明的配管，但在遮罩保持手段2將設有真 空吸附孔的位置以位在遮光罩3的遮光部3 1的位置的方式 配置’配管儘量自真空吸附孔的位置開始垂直，直立到光 源（燈具）1 0的附近，然後彎曲延伸至裝置外。藉由像這樣 配管，就沒有直立部分的光影隱現於遮光部3 1的問題，而 彎曲延伸至裝置外部分的光影很接近光源（燈具）丨〇，來自 光源（燈具）1 0的光線就會成爲散射光，整體就變得模糊不 淸，幾乎沒有影響。 吸附板4是採用設有複數個真空吸附孔的薄板，市面 出售之使用多孔質燒結體可作爲薄板利用。若採用多孔質 燒結體，一般開口率可大於設有真空吸附孔者，可得到較 大的吸附力（遮罩的保持力）。而且能利用吸附板4保持遮 光罩3的某種程度的面積，真空配管5的管數就會變得較少In the same apparatus, an opaque pipe exists between the light source (lamp) 10 and the hood 3 by the vacuum pipe 5, but the position where the vacuum suction hole is provided in the mask holding means 2 is located in the light shielding portion of the hood 3. The configuration of the position of 3 1 'the piping is as vertical as possible from the position of the vacuum suction hole, erected to the vicinity of the light source (lamp) 10, and then bent to extend outside the device. By piping like this, there is no problem that the light of the upright portion is looming in the light shielding portion 31, and the light that is bent to extend to the outer portion of the device is very close to the light source (lamp), and the light from the light source (lighting device) 10 will be When it becomes scattered light, the whole becomes blurred and has little effect. The adsorption plate 4 is a thin plate provided with a plurality of vacuum adsorption holes, and the commercially available porous sintered body can be used as a thin plate. If a porous sintered body is used, the opening ratio can be generally larger than that of the vacuum suction hole, and a large adsorption force (retention force of the mask) can be obtained. Further, the adsorption plate 4 can maintain a certain area of the mask 3, and the number of tubes of the vacuum piping 5 becomes less.
進而，遮光罩幾乎是以遮光部所形成，利用該部分就 能保持遮光罩，即使遮光罩很薄，還是能保持撓曲少的狀 能〇 而如該些圖所示，該貼合裝置乃於工作台面6上，是 在挾持密封劑8所形成的兩片玻璃基板7的上部，位於密封 劑8之處是以透光部3 2所形成，相當於塡充著以密封劑8包 圍的液晶之處的位置，藉由遮罩保持手段2並經由真空口及 附來保持以遮光部3 1形成的遮光罩3，來自於配置在遮光 罩3之上部的光照射部9的光源（燈具）1 0，會透過遮光罩3 -8- (7) 1282029 要設置真空配管，但需在遮罩保持手段1 1施行設有屬於真 空室（減壓室）11 1之空洞的加工。 其次，本發明的第三實施形態採用第4圖及第5圖做說 明。 第4圖是表示有關本實施形態之發明的顯示面板之貼 合裝置構成的部分立體圖，第5圖是表示同一裝置構成的 正面斷面圖。 於該些圖中，1 2是將保持在遮罩保持手段2上的遮光 罩3定位在所定位置的定位銷。A部係表不在遮罩台面1上 利用載置真空吸附來固定遮罩保持手段2之端部的狀態，B 部是表示在遮罩台面1上利用載置固定器具13來固定遮罩 保持手段2之端部的狀態，採用A部或是B部的任一固定 手段。 再者，其他構成係對應第1圖及第2圖所示的相同符號 的構成，故省略說明。 連本實施形態中，遮罩保持手段2不需要像保持遮光 罩3全體那樣大的構件，如第4圖所示，可採用分成複數的 棒狀構件，而且也可使用不分割一體形成的構件。藉此遮 罩保持手段2就不需要使用一片加工精度很高的大石英板 ，構件就能型化，減低成本。 而如該些圖所不，就該貼合裝置來看，在工件台面6 上挾持密封劑8所形成的兩片玻璃基板7的上部，位於密封 劑8之處是用透光部3 2所形成，相當於塡充以密封劑8包圍 的液晶之處的位置，以遮光部3 1所形成的遮光罩3是保持 -10- 1282029 (8) 在遮罩保持手段2上，進而來自於配置在遮光罩3之上部的 光照射部9的光源（燈具）1 〇，會透過遮光罩3的透光部3 2， 對密封劑8照射紫外線，藉此密封劑8會被紫外線硬化，就 能貼合兩片玻璃基板7。 如以上所述，上述各實施形態所示的顯示面板之貼合 裝置，乃於以往所具有之遮光罩機能中，將光只照射在所 定區域的機能分割在遮光罩上，並將遮罩以平面度良好的 保持在遮罩台面的機能分割在遮罩保持手段的各點爲其特 徵，藉由此種構成就可減低貼合裝置的成本。 亦即，遮罩保持手段係製作成又小又薄之遮光罩的結 果，成爲無法保持在遮罩台面的大小，而且在保持狀態下 會產生彎曲，所以設計形成具有保持遮光罩且不會彎曲的 透明遮光罩的保持手段。設有遮罩保持手段與習知裝置相 比，增加新的構成零件，成爲提高成本的主因。但藉由改 變遮罩圖案或改變遮光罩，就依然能廣泛使用遮罩保持手 段，只要換掉遮光罩，就能降低整個貼合裝置的成本。 而上述各實施形態的遮光罩不像習知的遮光罩需要以 高價的石英爲材料，能使用與製作工件用相同的透光性基 板，就透光性基板來看，顯示面板製造商當然有許多透光 性基板，能與遮光罩共同使用，就能廉價製造遮光罩。進 而，透光性基板（玻璃基板）要求較高的平面精度，但不像 習知的遮光罩需要「保持用留邊」等，其大小可小到與工 件（兩片玻璃基板）相同的大小，就能更進一步廉價的製作 -11 - 1282029 Ο) 進而與透光性基板相同，以基板作爲遮光罩使用的話 ，照樣可使用透光性基板用的蒸鍍裝置、蝕刻裝置等既存 的裝置，像是習知的遮光罩因此不需要製作的特別的裝置 ，就能更進一步廉價製造遮光罩。 [發明效果] 若按照申請專利範圍第1項記載的發明，於顯示面板 之貼合裝置中，因採用具有在透光性基板以留有對應前述 紫外線硬化性接著劑的透光部而形成遮光部的遮光罩、和 以穿透紫外線的構件所形成之保持前述遮光罩的遮罩保持 手段、和具有比前述遮光罩更大的開口部，且保持前述遮 罩保持手段的遮罩台面，遮罩保持手段是藉由改變遮罩圖 案，或改變遮光罩，因此依舊能廣泛應用遮罩保持手段， 只要換掉遮光罩，整個貼合裝置就能低成本化。而且遮光 罩不需要使用像習知遮光罩那麼高價的石英材料，利用與 製作工件用之透光性基板相同的透光性基板就可以，液晶 面板製造商具有許多透光性基板，能與遮光罩共同使用， 更不像習知之遮光罩需要「保持用留邊」等，故其大小可 小到與透光性基板（玻璃基板）相同的大小，就能很便宜的 製造遮光罩。進而在遮光罩上形成由鍍鉻製成的圖案的裝 置可以使用既存的裝置，因此不像習知的遮光罩需要特別 的裝置，就能更便宜的製造遮光罩。 若按照申請專利範圍第2項所記載的發明，遮罩保持 手段是將遮光罩保持在該遮光罩的遮光部的構成，因此遮 -12- 1282029 (10) 光罩能以遮光部形成許多部分，就能以寬大的範圍來保持 遮光罩，即使遮光罩很薄還是能保持良好的平面度。 【圖式簡單說明】 第1圖是表示有關第一實施形態之發明的顯示面板之 貼合裝置構成的部分立體圖。 第2圖是表示有關第一實施形態之發明的顯示面板之 貼合裝置構成的正面斷面圖。 第3圖是表示有關第二實施形態之發明的顯示面板之 貼合裝置構成之正面斷面圖。 第4圖是表示有關第三實施形態之發明的顯示面板之 貼合裝置構成的部分立體圖。 第5圖是表示有關第三實施形態的顯示面板之貼合裝 置構成的正面斷面圖。 第6圖是表示有關習知技術的顯示面板之貼合裝置構 成的正面斷面圖。 第7圖是表示有關第一實施形態之發明的顯示面板之 貼合裝置構成的部分正面斷面圖。 [圖號說明] 1 遮罩台面 la 遮罩台面的開口部 2 遮罩保持手段 3 遮光罩 -13- 1282029 (11) 3 1 遮光部 32 透光部 4 吸附板（或吸附墊） 5 真空配管 6 工作台面 7 玻璃基板 8 密封劑 9 光照射部 10 光源（燈具） 11 遮罩保持手段 111 真空室（減壓室） 112 真空吸附孔 12 定位銷 13 固定器具 -14-Further, the hood is almost formed by the light shielding portion, and the hood can be held by the portion, and even if the hood is thin, the ridge can be kept in a small amount of deflection. As shown in the figures, the bonding device is On the work surface 6, the upper portion of the two glass substrates 7 formed by the sealing agent 8 is located at the place where the sealant 8 is formed by the light transmitting portion 32, which is equivalent to being filled with the sealant 8. The position of the liquid crystal is held by the mask holding means 2, and the light shielding cover 3 formed by the light shielding portion 31 is held by the vacuum port and the attachment, and the light source (lighting device) from the light irradiation portion 9 disposed at the upper portion of the light shielding cover 3 ) 10 0, the vacuum piping is to be provided through the hood 3 -8- (7) 1282029, but the processing of the cavity belonging to the vacuum chamber (decompression chamber) 11 1 is performed in the mask holding means 1 1 . Next, a third embodiment of the present invention will be described using Figs. 4 and 5. Fig. 4 is a partial perspective view showing a configuration of a bonding apparatus for a display panel according to the invention of the embodiment, and Fig. 5 is a front sectional view showing the configuration of the same device. In these figures, 12 is a positioning pin that positions the hood 3 held on the mask holding means 2 at a predetermined position. The part A is not in a state in which the end portion of the mask holding means 2 is fixed by vacuum deposition on the mask table 1, and the part B is a means for fixing the mask by the mounting fixture 13 on the mask surface 1. The state of the end of 2 is either fixed by means of A or B. In addition, since the other configurations correspond to the same reference numerals as those shown in Figs. 1 and 2, description thereof will be omitted. In the present embodiment, the mask holding means 2 does not need to have a member as large as the entire hood 3, and as shown in Fig. 4, a plurality of rod-shaped members may be used, and a member which is integrally formed without division may be used. . By means of the mask holding means 2, it is not necessary to use a large quartz plate having a high processing precision, and the member can be shaped and reduced in cost. As shown in the figures, in the case of the bonding apparatus, the upper portion of the two glass substrates 7 formed by holding the sealant 8 on the workpiece table 6 is located at the sealant 8 by the light transmitting portion 32. Formed at a position corresponding to the liquid crystal surrounded by the sealant 8, the hood 3 formed by the light shielding portion 31 is held by the -10- 1282029 (8) on the mask holding means 2, and further from the configuration The light source (lamp) 1 of the light-irradiating portion 9 at the upper portion of the hood 3 passes through the light-transmitting portion 32 of the hood 3 to irradiate the sealant 8 with ultraviolet rays, whereby the sealant 8 is cured by ultraviolet rays. Two glass substrates 7 are bonded together. As described above, in the bonding apparatus of the display panel described in each of the above embodiments, in the conventional hood function, the function of irradiating light only in a predetermined area is divided into a hood, and the mask is The functional division of the masking table which is good in flatness is characterized by the points of the mask holding means, and the cost of the bonding apparatus can be reduced by such a configuration. That is, the mask holding means is made into a small and thin hood, and the size of the mask can not be maintained on the surface of the mask, and the bending is generated in the holding state, so that the design is formed to have a hood and is not bent. The means of keeping the transparent hood. The provision of mask holding means increases the number of new components and becomes the main cause of cost increase compared with conventional devices. However, by changing the mask pattern or changing the hood, the mask can still be widely used to keep the hand. By replacing the hood, the cost of the entire fitting device can be reduced. In the hood of the above-described embodiments, unlike the conventional hood, it is necessary to use expensive quartz as the material, and the same translucent substrate as that for the workpiece can be used. In view of the translucent substrate, the display panel manufacturer certainly has Many light-transmissive substrates can be used together with the hood to make the hood cheap. Further, a translucent substrate (glass substrate) requires high planar accuracy, but unlike conventional hoods, it is required to have a "holding edge for holding" or the like, and the size thereof can be as small as the size of the workpiece (two glass substrates). In the same manner as the translucent substrate, the substrate can be used as a hood, and an existing device such as a vapor deposition device for a translucent substrate or an etching device can be used as it is. Like the conventional hood, it is possible to manufacture the hood more inexpensively without requiring a special device to be fabricated. According to the invention of the first aspect of the invention, in the bonding apparatus of the display panel, the light-transmitting portion having the ultraviolet curable adhesive is left on the light-transmitting substrate to form a light-shielding. a hood of the portion, a mask holding means for holding the hood formed by a member that penetrates the ultraviolet ray, and a masking surface having a larger opening than the hood, and holding the mask holding means Since the mask holding means changes the mask pattern or changes the hood, the mask holding means can still be widely used, and the entire bonding apparatus can be reduced in cost by replacing the hood. Moreover, the hood does not need to use a quartz material as high as a conventional hood, and the same light-transmissive substrate as the light-transmissive substrate for the workpiece can be used. The liquid crystal panel manufacturer has many light-transmitting substrates, which can be shielded from light. The cover is used in common, and unlike the conventional hood, it is necessary to "hold the edge", and the size thereof can be as small as the size of the light-transmitting substrate (glass substrate), and the hood can be manufactured inexpensively. Further, since the device for forming a pattern made of chrome on the hood can use an existing device, unlike the conventional hood, which requires a special device, the hood can be manufactured more inexpensively. According to the invention of the second aspect of the invention, the mask holding means is configured to hold the hood in the light shielding portion of the hood, so that the -12-1282029 (10) reticle can form a plurality of portions with the light shielding portion. The hood can be kept in a wide range, and the flatness can be maintained even if the hood is thin. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a partial perspective view showing a configuration of a bonding apparatus for a display panel according to a first embodiment of the invention. Fig. 2 is a front sectional view showing the configuration of a bonding apparatus for a display panel according to the first embodiment of the invention. Fig. 3 is a front sectional view showing the configuration of a bonding apparatus for a display panel according to the invention of the second embodiment. Fig. 4 is a partial perspective view showing the configuration of a bonding apparatus for a display panel according to the third embodiment of the invention. Fig. 5 is a front sectional view showing the configuration of a bonding apparatus for a display panel according to a third embodiment. Fig. 6 is a front sectional view showing the structure of a bonding apparatus for a display panel of the prior art. Fig. 7 is a partial front sectional view showing the configuration of a bonding apparatus for a display panel according to the first embodiment of the invention. [Description of the figure] 1 Covered surface la The opening of the masking table 2 Mask holding means 3 Hood-13-1282029 (11) 3 1 Light blocking part 32 Light transmitting part 4 Adsorption plate (or suction pad) 5 Vacuum piping 6 Work surface 7 Glass substrate 8 Sealant 9 Light irradiation unit 10 Light source (lamp) 11 Mask holding means 111 Vacuum chamber (decompression chamber) 112 Vacuum suction hole 12 Locating pin 13 Fixing device-14-