1287124 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種偏光板貼附裝置，且特別是有關於一 種可將偏光板平整貼附至面板上之貼附裝置。 【先前技術】 在液晶顯示螢幕（Liquid Crystal Display，LCD)面板的製 作過程中，必須進行偏光板貼附的程序。請參照第1A圖，其 φ 繪示為一偏光板之分層結構示意圖。一般材料供應商所提供的 偏光板100，其結構從上至下分別為第一離形紙11 〇、本體i 3〇 及第二離形紙140。其中本體130具有第一側面132及第二侧 面134，且第一離形紙11〇和第二離形紙14〇分別黏在第一側 面132和第二側面134上。 進行貼附時，需先將第一離形紙11〇撕除，以將本體13〇 具黏性的第一側面132貼附到LCD的面板上。但因為偏光板 100為三層不同材質所構成，不同的材質擁有各自的應力，所 以若是將一層撕除，會破壞内部應力平衡的狀態，造成形狀的 *改變。請參照第1B圖，其繪示為將第1A圖中之第一離形紙撕 除後之偏光板示意圖。偏光板1〇〇a因為將第1A圖中的第一離 形紙110撕除，使得剩下的本體130以及第二離形紙140為了 平衡失去的應力支撐，而向内部捲縮形成負翹。如此一來，便 造成了貼附作業的困擾。 目前所使用之偏光板貼附裝置，其貼附原理為將已撕除第 一離形紙之偏光板，利用吸附平台吸附於其上，再利用滾輪將 偏光板貼附於面板表面。請參照第2A、2B圖，其繪示為一種 傳統之偏光板貼附裝置之示意圖。在第2A圖中，吸附平台250 TW2186PA 5 •1287124 以其第一表面254之吸著器252吸附著第1B圖中已撕去第一 離形紙110之偏光板1〇0a。滾輪230緊抵著吸附平台250之 第二表面256,並與第二離形紙14〇相接觸。請參照第2B圖， 進行貼附時，吸附平台250前端會抬昇，讓偏光板i〇〇a之第 一側面132前端與面板270前端相接觸。當面板搬運平台290 攜帶面板270往R1方向移動時，滾輪230亦同步轉動並將偏 光板100a貼附於面板270表面。 原本如第1B圖所示之應力不均而負翹的偏光板i〇〇a，由 φ 於受到吸著器252的吸附而得以平整地位於吸附平台25〇上， 如第2B圖所示。但是當大部分的偏光板i〇〇a完成貼附，而其 尾端部分離開吸著器252的範圍時，由於失去向下的吸力，偏 光板100a的尾端部分因負翹而向上彈起，造成偏光板i〇〇a之 末端先黏附於面板270。請參照第3A圖，其繪示為利用傳統貼 附裝置貼附偏光板之示意圖。第3 B圖繚示為第3 A圖中貼附裝 置之部分放大示意圖。請參照第3A圖，當偏光板1 〇〇3末端脫 離吸著器252的吸著範圍時，可能會翹起而使尾端黏附於面板 270表面。當尾端黏附的位置不正確（例如偏離面板27Q的側 •緣），再經過滾輪230碾壓，則偏光板100a可能會產生氣泡 (Bubble)或皺折的瑕疵。 負翹產生的原因請參照第3B圖，由於偏光板1〇〇3的貼 附點，也就是滾輪230的頂點，與第一吸著器2521之間的距 離為滚輪半徑r加上第一吸著器2521與第二表面256的距離 d ’在[r+d]這段範圍内的偏光板1 〇〇a由於沒有吸力將其攤平， 可能由於内部應力不均衡產生負翹，造成貼附的瑕疵。根據傳 統的貼附裝置，其滾輪230的頂點與第一吸著器2521之間的 距離[r+d]，範圍約在15〜35mm之間。也就是說偏光板100a TW2186PA 6 •1287124 的尾端部分約15〜35 mm的長度是無法在有向下吸力的情況下 進行貼附的。 一旦貼附過程產生瑕疲（氣泡或皺折），偏光板必須自面板 撕下並作廢，然後再重新貼一張新的偏光板於面板上。由於偏 光板的成本十分昂貴，其所佔的成本比例更是隨著面板貼附的 面積顯著增加’因此若能有效降低貼附瑕疵機率的產生，便可 有效降低生產成本。 【發明内容】 有鑑於此’本發明的目的就是在提供一種貼附裝置，使得 偏光板之貼附點與吸著器之間的距離顯著減少，以降低偏光板 因負翹而造成貼附瑕症的機率。 根據本發明的目的，提出一種貼附裝置，包括：一吸附平 台以及一刮刀，吸附平台具有一第一表面以及一第二表面，第 一表面更具有複數個吸著器，用以吸附偏光板，且第一表面與 第二表面相交成一角度，相交處並具有複數個吸著孔。刮刀設 置於吸附平台之第二表面，當吸附平台進行偏光板之貼附時， 到刀係用以緊抵並均勻貼附偏光板。 為讓本發明之上述目的、特徵、和優點能更明顯易懂，下 文特舉一較佳實施例，並配合所附圖式，作詳細說明如下： 【實施方式】 本發明係提出一種偏光板貼附裝置，使偏光板在與液晶顯 示面板的貼附過程中，盡可能地受到吸附作用而減少因負勉造 成貼附瑕疵的機率。以下係以一較佳實施例對本發明進行詳細1287124 IX. Description of the Invention: [Technical Field] The present invention relates to a polarizing plate attaching device, and more particularly to an attaching device which can flatten a polarizing plate to a panel. [Prior Art] In the process of manufacturing a liquid crystal display (LCD) panel, it is necessary to perform a procedure of attaching a polarizing plate. Please refer to FIG. 1A, where φ is a schematic diagram of a layered structure of a polarizing plate. The polarizing plate 100 provided by a general material supplier has a structure of a first release paper 11 〇, a body i 3 〇 and a second release paper 140 from top to bottom. The body 130 has a first side surface 132 and a second side surface 134, and the first release paper 11〇 and the second release paper 14〇 are adhered to the first side surface 132 and the second side surface 134, respectively. When attaching, the first release paper 11 is first peeled off to attach the first side 132 of the body 13 viscous to the panel of the LCD. However, since the polarizing plate 100 is composed of three layers of different materials, different materials have respective stresses, so if a layer is torn off, the internal stress balance state is broken, and the shape* is changed. Please refer to FIG. 1B, which is a schematic view showing a polarizing plate after the first release paper in FIG. 1A is torn off. The polarizing plate 1A is torn off the first release paper 110 in FIG. 1A, so that the remaining body 130 and the second release paper 140 are crimped toward the inside to form a negative roll for balancing the lost stress support. . As a result, it has caused troubles in the attachment work. The polarizing plate attaching device currently used has the principle of attaching the polarizing plate from which the first release paper has been torn, and adsorbing thereon by the adsorption platform, and then attaching the polarizing plate to the surface of the panel by using a roller. Please refer to Figures 2A and 2B, which are schematic views of a conventional polarizing plate attaching device. In Fig. 2A, the adsorption platform 250 TW2186PA 5 • 1287124 adsorbs the polarizing plate 1〇0a of the first release paper 110 in Fig. 1B with the sorber 252 of its first surface 254. The roller 230 abuts against the second surface 256 of the suction platform 250 and is in contact with the second release paper 14 。. Referring to Fig. 2B, when attaching, the front end of the adsorption stage 250 is lifted, and the front end of the first side 132 of the polarizing plate i〇〇a is brought into contact with the front end of the panel 270. When the panel handling platform 290 carries the panel 270 in the R1 direction, the roller 230 also rotates synchronously and attaches the polarizing plate 100a to the surface of the panel 270. The polarizing plate i〇〇a, which is originally subjected to stress unevenness as shown in Fig. 1B, is placed on the adsorption stage 25A by the adsorption of Φ by the absorbing device 252, as shown in Fig. 2B. However, when most of the polarizing plates i〇〇a are attached and the trailing end portion is away from the range of the susceptor 252, the tail end portion of the polarizing plate 100a bounces upward due to the negative tilt due to the loss of the downward suction force. The end of the polarizing plate i〇〇a is first adhered to the panel 270. Please refer to Fig. 3A, which is a schematic view showing the attachment of a polarizing plate by a conventional attaching device. Fig. 3B is a partial enlarged view showing the attachment device in Fig. 3A. Referring to Fig. 3A, when the end of the polarizing plate 1 〇〇 3 is separated from the absorbing range of the sorber 252, it may be lifted to adhere the trailing end to the surface of the panel 270. When the position at which the trailing end is adhered is incorrect (for example, offset from the side edge of the panel 27Q) and then rolled by the roller 230, the polarizing plate 100a may generate a bubble or a wrinkled flaw. For the reason of negative warpage, please refer to FIG. 3B. Since the attachment point of the polarizing plate 1〇〇3, that is, the apex of the roller 230, the distance from the first sorbent 2521 is the radius of the roller plus the first suction. The polarizer 1 〇〇a of the distance 25′ of the holder 2521 and the second surface 256 in the range of [r+d] is flattened due to no suction, and may be negatively warped due to uneven internal stress, resulting in attachment. Hey. According to the conventional attachment device, the distance [r+d] between the apex of the roller 230 and the first sorbent 2521 ranges between about 15 mm and 35 mm. That is to say, the length of the end portion of the polarizing plate 100a TW2186PA 6 • 1287124 is about 15 to 35 mm and cannot be attached with a downward suction. Once the attachment process produces fatigue (bubbles or wrinkles), the polarizer must be torn from the panel and voided, and then reattached to a new polarizer on the panel. Since the cost of the polarizing plate is very expensive, the cost ratio of the polarizing plate is significantly increased with the area attached to the panel. Therefore, if the probability of attaching the tape is effectively reduced, the production cost can be effectively reduced. SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide an attachment device such that the distance between the attachment point of the polarizing plate and the sorber is significantly reduced to reduce the adhesion of the polarizing plate due to negative tilt. The probability of a disease. According to an object of the present invention, an attachment device is provided, comprising: an adsorption platform and a scraper, the adsorption platform having a first surface and a second surface, the first surface further having a plurality of adsorbers for adsorbing the polarizing plate And the first surface intersects the second surface at an angle, and the intersection has a plurality of suction holes. The scraper is placed on the second surface of the adsorption platform. When the adsorption platform is attached to the polarizing plate, the knife is used to tightly and evenly attach the polarizing plate. The above described objects, features, and advantages of the present invention will become more apparent and understood. The attaching device allows the polarizing plate to be adsorbed as much as possible during the attaching process to the liquid crystal display panel, thereby reducing the probability of sticking due to the negative enthalpy. The following is a detailed description of the present invention in a preferred embodiment.
TW2186PA 7 1287124 之說明。 請參照第4A、4B圖，其分別繪示本發明一較佳實施例的 偏光板貼附裝置之側視圖和立體圖。如第4A圖所示，貼附裝 置包括一吸附平台450及一刮刀410。吸附平台450具有一第 一表面454及一第二表面456。第一表面454上設置有複數個 吸著器452，用以吸附第1B圖中已撕除第一離形紙11〇之偏 光板100a。刮刀410則設置於第二表面456,用以緊抵並均勻 貼附偏光板100a於一面板上（未顯示於第4A圖）。相較於傳統 φ 的貼附裝置，貼附點由第3B圖中的滾輪230頂點移到刮刀410 的頂點’而刮刀410係直接設置於第二表面456，減少了貼附 點與吸附平台450之間的距離。 此外，如第4B圖所示，此實施例係較佳地在第一表面454 與第一表面456的連接處設置一凹槽430，凹槽430内設置複 數個吸著孔460,每一吸著孔460並以一連接管470(第4A圖） 與一吸著器452連通，提供凹槽430真空吸引的能力。當然， 本發明並不限於此，吸著孔460也可以獨立於吸著器452之 外。而设置於第二表面456的刮刀410可與第一表面454等 鲁咼、或者是尚出些微距離（如3mm之内），以增加貼附偏光板之 施力。相較於傳統的貼附裝置，此實施例將吸附範圍由第3B 圖中的第一吸著器2521延伸到第4A、4B圖之吸附平台45〇 的前端〇_e·凹槽430處）。經由本實施例之設置方式，可顯著減 少貼附點與吸著範圍之間的距離，有效減少偏光板因負翹而發 生皺折瑕疫的機率。 請參照帛5圖，其繪示本發明一較佳實施例之偏光板貼附 裝置進打貼附之示意圖。如第5圖所示，材料商提供如第1A 圖中的偏光板，纽置於本發明一實施例之吸附平台45〇Description of TW2186PA 7 1287124. Referring to Figures 4A and 4B, there are shown side and perspective views, respectively, of a polarizing plate attaching device in accordance with a preferred embodiment of the present invention. As shown in Fig. 4A, the attachment device includes an adsorption platform 450 and a scraper 410. The adsorption platform 450 has a first surface 454 and a second surface 456. The first surface 454 is provided with a plurality of sorbers 452 for absorbing the polarizing plate 100a of the first release paper 11 which has been peeled off in Fig. 1B. The doctor blade 410 is disposed on the second surface 456 for abutting and uniformly attaching the polarizing plate 100a to one side plate (not shown in Fig. 4A). Compared with the conventional φ attachment device, the attachment point is moved from the vertex of the roller 230 in FIG. 3B to the vertex of the scraper 410, and the scraper 410 is directly disposed on the second surface 456, reducing the attachment point and the adsorption platform 450. the distance between. In addition, as shown in FIG. 4B, this embodiment is preferably provided with a groove 430 at the junction of the first surface 454 and the first surface 456, and a plurality of suction holes 460 are disposed in the groove 430, each suction The aperture 460 is communicated with a sorbent 452 by a connecting tube 470 (Fig. 4A) to provide the ability of the recess 430 to be vacuum attracted. Of course, the invention is not limited thereto, and the suction hole 460 may be independent of the sorber 452. The scraper 410 disposed on the second surface 456 can be reluctant to the first surface 454 or a slight distance (e.g., within 3 mm) to increase the force applied to the polarizing plate. Compared with the conventional attaching device, this embodiment extends the adsorption range from the first sorbent 2521 in Fig. 3B to the front end 〇e_e groove 430 of the adsorption platform 45A of Figs. 4A, 4B) . Through the setting mode of the embodiment, the distance between the attachment point and the absorbing range can be significantly reduced, and the probability of the plague caused by the negative tilt of the polarizing plate is effectively reduced. Referring to Figure 5, there is shown a schematic view of a polarizing plate attaching device attached to a preferred embodiment of the present invention. As shown in Fig. 5, the material supplier provides a polarizing plate as shown in Fig. 1A, which is placed on the adsorption platform 45 of an embodiment of the present invention.
TW2186PA 8 J287124 上，例如以吸附平台450之第一表面454所設置之吸著器452 吸附貼於偏光板100之第二離形紙140。接著，經由一機器設 備移除第一側面132上之第一離形紙11 〇，成為如第1 b圖所 示之偏光板100a，此時偏光板l〇〇a的第一側面132係朝向搬 運平台290上之一面板270。欲進行貼附時，面板搬運平台290 將面板270帶至一定位處，貼附裝置並朝面板27〇位置移動； 然後移動（例如上舉）吸附平台450之前端，使刮刀410用以緊 抵偏光板100a。接著，令面板搬運平台290帶動面板270往 φ R1方向行進，使偏光板1〇〇a均勻地貼附於面板270上。貼附 完成後，吸附平台450之前端將回到原來的位置，等待下一次 偏光板貼附之指令。而由於貼附點位於刮刀41 〇頂部，且吸附 範圍藉由凹槽430的設置往吸附平台250的前端延伸，顯著降 低吸附範圍的死角，有效防止偏光板100a因負翹而造成貼附 瑕癍i。 另外，在較佳實施例中，吸附平台450之第一表面454 及第二表面456係形成一夾角Θ，且夾角0小於90度，使設 置於第二表面456的刮刀410呈現一傾斜狀態，在進行偏光板 貼附動作時，刮刀410可順利抵住偏光板1〇〇a。然本實施例所 屬技術領域中具有it常知識者可以明瞭本實施例之技術並不偈 限在此’例如’夾角0可以$ 9〇度，亦即第一表面454與第 二表面456係垂直相交，刮刀樣也可以與吸附平台45〇 3 一 體成形的結構。 & ~ 本發明上述實施例所揭露之偏光板貼附裝置，係以刮刀代 替滾輪，減少貼附點與吸附平台之間的距離。其中刮刀材 以是聚脂塑膠、橡膠、或是鐵弗龍材質導電塑膠等，但不 限於上述材質。此外，將吸附平台前端設置一凹槽，凹槽内設On the TW2186PA 8 J287124, for example, the sorber 452 disposed on the first surface 454 of the adsorption platform 450 adsorbs the second release paper 140 attached to the polarizing plate 100. Then, the first release paper 11 第一 on the first side surface 132 is removed via a machine device to become the polarizing plate 100a as shown in FIG. 1 b. At this time, the first side surface 132 of the polarizing plate 10a is oriented. A panel 270 is placed on the platform 290. When attaching, the panel handling platform 290 brings the panel 270 to a positioning position, attaches the device and moves toward the panel 27〇 position; then moves (for example, lifts) the front end of the adsorption platform 450, so that the scraper 410 is used to close Polarizing plate 100a. Next, the panel transporting platform 290 is caused to drive the panel 270 in the direction of φ R1 to uniformly attach the polarizing plate 1A to the panel 270. After the attachment is completed, the front end of the adsorption platform 450 will return to the original position, waiting for the next order of the polarizing plate attached. Since the attachment point is located at the top of the blade 41, and the adsorption range extends toward the front end of the adsorption platform 250 by the arrangement of the groove 430, the dead angle of the adsorption range is remarkably reduced, and the polarizing plate 100a is effectively prevented from being attached due to the negative tilt. i. In addition, in the preferred embodiment, the first surface 454 and the second surface 456 of the adsorption platform 450 form an angle Θ, and the angle 0 is less than 90 degrees, so that the blade 410 disposed on the second surface 456 exhibits an inclined state. When the polarizing plate attaching operation is performed, the scraper 410 can smoothly abut against the polarizing plate 1A. However, those skilled in the art to which this embodiment belongs can understand that the technique of the present embodiment is not limited thereto. For example, the angle 0 may be 9 〇, that is, the first surface 454 is perpendicular to the second surface 456. Intersecting, the blade shape can also be integrally formed with the adsorption platform 45〇3. < ~ The polarizing plate attaching device disclosed in the above embodiment of the present invention replaces the roller with a scraper to reduce the distance between the attaching point and the adsorption platform. The scraping material is made of polyester plastic, rubber, or Teflon conductive plastic, but is not limited to the above materials. In addition, a groove is arranged at the front end of the adsorption platform, and the groove is provided
TW2186PA 9 J287124 置吸者孔’相連接管與吸著器連通，細槽具有真空吸引能 力’也就是將吸附範圍往吸附平台的前端延伸。本實施例可因 此有效減少貼附點與吸附範圍之間的距離，降低因偏光板負趣 而造成貼附瑕麻的機率，提高偏光板貼附製程的良率。 綜上所述，雖然本發明已以一較佳實施例揭露如上，然其 並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之 精神和範圍内，當可作各種之更動與潤飾，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。TW2186PA 9 J287124 Sucker Hole The 'connecting tube is connected to the sorber, and the sump has vacuum suction capacity', that is, the adsorption range extends toward the front end of the adsorption platform. In this embodiment, the distance between the attachment point and the adsorption range can be effectively reduced, the probability of attaching the ramie due to the negative interest of the polarizing plate is reduced, and the yield of the polarizing plate attaching process is improved. In view of the above, the present invention has been described above in terms of a preferred embodiment, and is not intended to limit the invention, and various modifications may be made without departing from the spirit and scope of the invention. And the scope of the present invention is defined by the scope of the appended claims.
TW2186PA 10 .1287124 【圖式簡單說明】 第1A圖繪不為一偏光板之分層結構不意圖； 第1B圖繪示為將第1A圖中之第一離形紙撕除後之偏光 板示意圖； 第2A、2B圖繪示為一種傳統之偏光板貼附裝置之示意圖； 第3A圖繪示為利用傳統貼附裝置貼附偏光板之示意圖； 第3B圖繪示為第3A圖中貼附裝置之部分放大示意圖； 第4A、4B圖分別繪示本發明一較佳實施例的偏光板貼附 裝置之侧視圖和立體圖；及 第5圖繪示本發明一較佳實施例之偏光板貼附裝置進行貼 附之示意圖。 主要元件符號說明 100、 100a :偏光板 110 ： 第一離形紙 130 ： 本體 132 ： 偏光板第一側面 134 ： 偏光板第二側面 140 ： 第二離形紙 230 ： 滚輪 250 > 450 ： 吸附平台 252、 452 ： 吸著器 2521 :第一 吸著器 254、 454 ： 第一表面 256、 456 ： 第二表面 270 ： 面板 TW2186PA 11 1287124 290 :面板搬運平台 410 :刮刀 430 ··凹槽 460 :吸著孔 470 :連接管 R1 :面板搬運平台行進方向 d ··第一吸著器2521與第二表面256之距離 r:滾輪半徑 Θ :第一表面454與第二表面456之夾角TW2186PA 10 .1287124 [Simple description of the drawing] FIG. 1A is not a schematic diagram of a layered structure of a polarizing plate; FIG. 1B is a schematic view showing a polarizing plate after the first release paper of FIG. 1A is torn off 2A and 2B are schematic views showing a conventional polarizing plate attaching device; FIG. 3A is a schematic view showing a polarizing plate attached by a conventional attaching device; and FIG. 3B is a view attached to FIG. 3A; 4A and 4B are respectively a side view and a perspective view of a polarizing plate attaching device according to a preferred embodiment of the present invention; and FIG. 5 is a view showing a polarizing plate attached to a preferred embodiment of the present invention. A schematic diagram of the attached device. Main component symbol description 100, 100a: polarizing plate 110: first release paper 130: body 132: polarizing plate first side 134: polarizing plate second side 140: second release paper 230: roller 250 > 450 : adsorption Platform 252, 452: sorbent 2521: first sorbent 254, 454: first surface 256, 456: second surface 270: panel TW2186PA 11 1287124 290: panel handling platform 410: scraper 430 · · groove 460: Suction hole 470: connecting pipe R1: panel conveying platform traveling direction d · distance between first sorbent 2521 and second surface 256 r: roller radius Θ : angle between first surface 454 and second surface 456
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