200844423 九、發明說明： 【發明所屬之技術領域】 本項發明是說明用來驗證測試) ，尤其是玻璃或陶瓷破璃片的驗證須, 材料的方法和f支備200844423 IX. Description of the invention: [Technical field to which the invention pertains] The present invention is intended to verify the test, in particular the verification of glass or ceramic glazing, the method of material and the support of f
w須1以何得住重複的屈曲和彎曲 I’人1的結構需求: 而不傷害到設備或其 置放的紙祕想耻可攜絲置__轉上/所以 希望它們耐得住粗魯的操作，而又不會傷害到設備峨反； 更且它們應該要能耐得住小於2公分的彎曲半徑，在有些 情形下小於1公分。 一 一玻璃是·柯職雜顯示壯的—歸料。玻璃 通常是抗化學性的、透明的，可以形成密封的阻隔或密封， 也可以形成非常薄的玻璃片。已生產而且常被使用的超過 平方公尺的玻璃厚度是低於！公釐，甚至低於〇· 7公董，而 且我們希望彳艮快可以生產至少約100平方公尺的玻璃片。 一般的顯示器製造過程是利用一個或多個大玻璃片或^板 形成數個顯示器。顯示器再利用劃線分割成個別的顯示單 凡。因此报大的玻璃片就足夠用來產生很多顯示單元。 切割的玻璃在此也就是玻璃片通常會在玻璃片邊緣形 成裂隙(例如缺口）。這些裂隙可能會成為破裂的來源，因 第5 頁 200844423 而減少玻璃㈣強度，尤其假使玻翻是祕的，就會使此 裂隙受到張應力。通常-般的顯示t嫌並不會受到明顯的 屈曲，因而這些裂隙的存在就不為人所關注。 彈性顯示器由於其具彈性的特質，無論在製造過程或 使用期間會在顯示基板上產生顯著的應力。因此玻璃内可 能出現的裂隙會受到足以使玻璃碎裂的張應力。由於一般 的顯不雜造特咖#]玻触形成侧_示器，而切 割通常會在沿著玻璃片邊緣形成多個裂隙，這似乎是以玻 璃基板為主裝置不良的現象。 消弓耳玻璃片邊緣裂隙的嘗試包括雷射切割、研磨、拋 光等等，這些嘗試都可以去除或減少玻璃片切割時產生的 裂隙。然而，這些方法在彈性顯示器應用上有很多令人不 滿意之處，因為此項技術無法去除預期應力所需大小以下 的裂隙，或者此項技術難以運用在很薄的玻璃片（少於約 〇· 4公釐的厚度）。也可以使用玻璃邊緣的酸餘刻，但這可 能會損害基板上的顯示器設備。因此無論使用什麼切割的 方法，裂隙都會在玻璃内形成，尤其是玻璃片邊緣。 【發明内容】 在本項發明的一個實施範例中，說明了驗證測試脆性 材料片的方法，包括在玻璃片上使用一個彎曲，並在玻璃片 和彎曲之間產生相對移動使得彎曲越過玻璃片，在其中藉 由彎曲在玻璃片表面引起的張應力對應於預定的強度值 以偵測玻璃片的強度是否大於預定的強度值。 在另一個實施範例中，說明驗證測試玻璃片的方法，包 200844423 括在至少-個滾軸上幫曲玻璃片，並在玻璃片表面產生伸 拉應力對應於預定的強度值，以及在玻璃片和至少一個滾 绮之間產生相對移動，使得玻璃#的連續部份動彳於伸拉 應力以偵測玻璃片的強度是否大於預定的強度值。 在另一個實施範例中，說明驗證測試脆性材料片的設 備’匕括至少一個用來接觸玻璃片並引發脆性材料片彎曲 的弓形元件，在其中選定至少一個弓形元件的曲度半徑，使 知因彎曲而引發的玻璃片表面張應力對應於預定的強度值 ，以偵測玻璃片的強度是否大於予頁定的強度值。 我們知道以上的大略說明和下列的詳細描述都只是本 項發明的範例以提供一個彳既觀和架構，讓人們瞭解本項發 明申請專利範圍之本質和特性。 所包含的附圖是用來使大家對本項發明有更進一步的 瞭解，因此也併入並構成這份規格書的一部分。附圖並不 一疋疋按肊比例來晝，各式元件的大小也因為要清楚說明 而有所改變。附圖圖示了一個或以上的實施範例，一起和 說明用來解釋本項發明的原理和運作。 【實施方式】 玻璃的強度是由玻璃内呈現的裂隙來決定。如果伸拉 應力所把力〇的玻璃有裂隙，應力就會集中在此裂隙上。例 如，如果應力集中在缺口尖端，裂隙就可能變成一個微小的 缺口。如果應力超過某定量，原來的裂隙即缺口就可能會 變大。如果施用的應力夠大，裂隙的增長就會瞬間造成玻 璃的破裂。 200844423 類似於鏈結的強度是根據於最弱連接強I玻璃的強 度也可以由最大的強度也就是最弱的裂隙來表示。例如， 如果施加於玻璃纖維l〇kpsi的應力，而且纖維維持固定那 麼就說纖維有至少lOkpsi的強度。也京尤是說，所有可能出 現在玻璃纖維上的裂隙是小於會導致破裂的lOkpsi的強度 。因此玻璃内裂隙的大小通常是以造成起因於那個裂隙的 破裂所需最小張應力來表示。所以假使玻璃被施加應力到 lOkpsi而沒有破裂，就可以說此玻璃沒有大於1〇 kpsi的裂 隙。雖然有一點名稱上的不同，但在玻璃強度的技術上一 般是使用應力來表示裂隙的大小。 如同前面的討論，玻璃的強度是玻璃製造歷史的結果 。也就是說，新形成的玻璃特別地強。抽拉玻璃片時可能 達到新形成玻璃纖維的強度，通常超過7〇〇]^pa。然而，接下 來的處理或暴露的環境因素可能造成裂隙，或增大已有的 裂隙，因而使玻璃的強度減弱。就是因為這個緣故，新抽拉 好的玻璃纖維會立即塗上聚合物的塗層以保護玻璃的表面 ，並預防或至少降低，強度的減弱。 玻璃片的大顿常是肋綱対來決定。例如在炫 化玻璃片的製造過私熔態玻璃是流經楔子狀形成體兩邊 倾斜的形絲Φ。祕侧的玻麟聚合在軸體底部或 根部，傾斜的形絲面在此會合以產生具有原始表面的玻 璃條帶。接著條帶在以機器劃分的方式切割成預定長度的 破璃片。然後也是以類似的機器劃分處理方式移賴 的邊緣。因此，玻璃片的邊緣會受制於可能傷害邊緣的壓 200844423 力。例如這種傷害可能包括玻璃片邊緣的切削或裂開，造 成強度的減弱。本項發明針對此問題的解決係藉著測試玻 璃片以侧玻翻⑽別是玻璃片邊緣出現的超過某大小 的裂隙。 如上所述，例如玻璃的脆性材料會因張力而破裂。在 玻璃内產生張力的-種方法是使玻璃彎曲。就特定的彎曲 半徑而了，可以由下列式子決定引發的應力： pp=E〇^l^a~]式 1 其中t是玻璃片厚度，R是彎曲半徑，仏是材料的零應力楊 氏模氣《是某脆性材料受到應變的揚氏模數的線性相關 值。圖1顯示C⑽ing公司代碼1737玻璃w 1 1 can be used to repeat the flexion and bending of the I's 1 structural requirements: without hurting the equipment or the paper it is placed on the confession of the wire __ turn / so I hope they can withstand rude The operation, without harming the equipment; and they should be able to withstand a bending radius of less than 2 cm, and in some cases less than 1 cm. One glass is the one that is strong and strong. Glass is generally chemically resistant, transparent, can form a sealed barrier or seal, and can also form very thin glass sheets. The thickness of the glass above and below the square meter that has been produced and often used is lower! It is even less than 〇·7 DON, and we hope to produce glass pieces of at least about 100 square meters. A typical display manufacturing process utilizes one or more large glass sheets or panels to form a plurality of displays. The display is then divided into individual display units by using a line. Therefore, a large glass piece is enough to produce a lot of display units. The cut glass, here the glass sheet, usually forms cracks (e. g., notches) at the edges of the glass sheet. These cracks may be a source of cracking, as the strength of the glass (4) is reduced by the 200844423, especially if the glass flip is secret, the crack is subjected to tensile stress. Usually, the general display is not subject to obvious buckling, so the existence of these cracks is not of concern. Due to its resilient nature, flexible displays create significant stresses on the display substrate during the manufacturing process or during use. Therefore, cracks that may occur in the glass are subject to tensile stresses sufficient to break the glass. Since the general display is not the same as the display, the cutting usually forms a plurality of cracks along the edge of the glass sheet, which seems to be a bad phenomenon in which the glass substrate is the main device. Attempts to eliminate edge cracks in the ear glass include laser cutting, grinding, polishing, etc., all of which can remove or reduce the cracks created by the glass sheet cutting. However, these methods have many unsatisfactory results in flexible display applications because this technology cannot remove cracks below the size required for the expected stress, or the technique is difficult to apply to very thin glass sheets (less than about 〇 · 4 mm thickness). It is also possible to use the acid residue of the edge of the glass, but this may damage the display device on the substrate. Therefore, no matter what cutting method is used, cracks are formed in the glass, especially at the edge of the glass sheet. SUMMARY OF THE INVENTION In one embodiment of the present invention, a method of verifying a test piece of brittle material is described, including using a bend on a glass sheet and causing a relative movement between the glass sheet and the bend such that the bend passes over the glass sheet, The tensile stress caused by bending on the surface of the glass sheet corresponds to a predetermined intensity value to detect whether the strength of the glass sheet is greater than a predetermined intensity value. In another embodiment, a method of verifying a test glass sheet is illustrated, and package 200844423 includes bending a glass sheet on at least one of the rollers, and generating tensile stress on the surface of the glass sheet corresponding to a predetermined intensity value, and in the glass sheet. A relative movement is made between the at least one roll and the continuous portion of the glass # is subjected to tensile stress to detect whether the strength of the glass sheet is greater than a predetermined intensity value. In another embodiment, an apparatus for verifying a test piece of brittle material is illustrated as comprising at least one arcuate element for contacting the glass sheet and inducing bending of the sheet of brittle material, wherein a radius of curvature of at least one of the arcuate elements is selected to cause a cause The surface tension of the glass sheet caused by the bending corresponds to a predetermined intensity value to detect whether the strength of the glass sheet is greater than a predetermined intensity value. We understand that the above general description and the following detailed description are merely examples of the present invention to provide an overview and structure to understand the nature and characteristics of the scope of the patent application of this invention. The drawings are included to provide a further understanding of the invention and are therefore incorporated in and constitute a part of this specification. The drawings are not to be considered in a singular scale, and the size of the various elements may vary depending on the description. The drawings illustrate one or more embodiments, together with the description of the principles and operation of the invention. [Embodiment] The strength of the glass is determined by the cracks present in the glass. If there is a crack in the glass that is pulled by the tensile stress, the stress will concentrate on the crack. For example, if stress is concentrated at the tip of the notch, the crack may become a tiny gap. If the stress exceeds a certain amount, the original crack, that is, the gap may become larger. If the applied stress is large enough, the growth of the crack will instantaneously cause the glass to rupture. 200844423 Similar to the strength of the chain is based on the strength of the weakest connection I strong glass can also be expressed by the maximum strength, that is, the weakest crack. For example, if the stress applied to the glass fiber is 10 kpsi and the fiber remains fixed, the fiber has a strength of at least 10 kpsi. In particular, it is said that all cracks that may appear on the fiberglass are less than the strength of lOkpsi that would cause cracking. Therefore, the size of the crack in the glass is usually expressed by the minimum tensile stress required to cause the crack due to that crack. So if the glass is stressed to lOkpsi without cracking, it can be said that the glass has no cracks greater than 1 〇 kpsi. Although there is a difference in name, the technique of glass strength generally uses stress to indicate the size of the crack. As discussed earlier, the strength of the glass is the result of the history of glass manufacturing. That is to say, the newly formed glass is particularly strong. When the glass piece is pulled, the strength of the newly formed glass fiber may be reached, usually exceeding 7 〇〇]^pa. However, subsequent processing or exposure to environmental factors may cause cracks or increase existing cracks, thereby weakening the strength of the glass. For this reason, the newly drawn glass fiber is immediately coated with a polymer coating to protect the surface of the glass and prevent or at least reduce, weakening the strength. The big piece of glass is often determined by the ribs. For example, in the manufacture of a glazed glass sheet, the fused glass is a filament Φ which is inclined on both sides of the wedge-shaped forming body. The secret side of the glass is polymerized at the bottom or root of the shaft, where the slanted filaments meet to produce a glass strip with the original surface. The strip is then cut into a predetermined length of granules by machine division. It is then also edged by a similar machine partitioning process. Therefore, the edge of the glass sheet is subject to pressure that may damage the edges of the 200844423 force. For example, such damage may include cutting or splitting of the edge of the glass sheet, resulting in a decrease in strength. The present invention addresses this problem by testing a glass sheet with a side-to-side (10) crack that exceeds a certain size at the edge of the glass sheet. As described above, a brittle material such as glass may be broken by tension. A method of creating tension in the glass is to bend the glass. For a specific bending radius, the induced stress can be determined by the following equation: pp=E〇^l^a~] Equation 1 where t is the thickness of the glass sheet, R is the radius of curvature, and 仏 is the zero stress of the material. Mold gas is a linear correlation of the Young's modulus of a brittle material subjected to strain. Figure 1 shows C (10)ing company code 1737 glass
力，這裡的Eo是约70.9GPa。因為不知道代碼1737玻璃的J ，因此_純石灶的參數α。然而實際上α在1%的應變（ 100kpsi)n 3%的躲，可以省略以敎不必要的錯誤 發生。玻璃片厚度可以是微米（曲線10)，棚微米（曲 線12)和700微米（曲線14)。 依據本項發明—個實施範例，說明一個驗證測試谢生 ^片的方法。脆性材料片一般是包括玻璃或陶瓷玻璃， ，、可包括其他可形成彈性片的脆性材料。請參考圖2,這 項單的實施範例，藉著在具有使材料片 曲度R的弓形元件18上f曲脆性材料片16。如 树18可岐可_轉柄雜，但也可 是ξ具賴），或者如®3所示，可能只 峨，_撕形柄職_形_如雜 200844423 ，鐵氟龍的氟聚合物樹脂）。脆性材料片16可移到弓形元 1:丰之上’使得材料片16的預定長度峰也受制於加諸的 曰弓曲+役。預定的長度可以是材料片的整個長度，也可以 π部份長度。或者，弓形元件可移到脆性獅^ 16之上 而讓弓形元件保持不動。 ， ，細可選旧__徑_，使 f給予材齡_應力。也就是說，所需的應力值，因而 2需的最小強度，可由材料片在其上，弯曲的弓形元件的 半㈣度來決定。圖4顯示在材料片驗證測試 半徑曲度以提供後續使用的安全彎曲半徑，例如在瞬間彎 曲條件(曲線20);在較長時期彎曲(數小時的彎曲—曲線 ;以及數年的彎曲條件(譬如超過5年-曲線24)。例如，請看 圖4,如果材料片包括100公分持久的彎曲半徑，將需要50公 刀的UJ5式考曲半控（弓形元件的半徑曲度)以保證可使 用5年以上。如果材料#被捲起來儲存—段期間 碰到這種情況。 月匕 k之刺敘述可很明顯赠出，使用單一弓形元件需 要材料>1在神上敝變(假定材則是糊$形元件之 上）。或弄更重要的，圖2和圖3的實施範例產生的拉 只施加於材料片丨6的單-邊。也就是只在單-方崎^力 使弓形疋件的另—邊產生張力，而接觸弓形it件的-邊則’ ⑼成I宿。為了使材料片16另—邊的拉伸應力和第 一樣，需要迴轉材料片並第二次在弓形元件之上繼續通過 第10 頁 200844423 個j 5 1不的疋本項發明’更有效的實施範例，這裡兩 個弓形元件接觸材料片Μ 、丄t ^ ^ I 弓形元件版和咖，每 )兀件的另-邊接觸材料片16。也就是說 件交換__材則。材_6紗一個 曲度半徑為Rl的第—個弓形元件版上(譬如以順時 0 )’然後以和弟-個方向不同的第二個方向，彎曲在 曲度半徑為_第二個弓形元件娜上(譬如以逆時針方向 。因此，材料片16的第—邊26受到拉伸應力，然後第二邊 8受到拉伸應力，弓形元件之間的材料片16只需要通過一 回，以施加拉伸應力至材料片的兩邊。為了保證材料片的 =緣在驗證測試後免於受到機械傷害，可以在邊緣塗上保 濩層。例如，可以在邊緣塗上聚合物保護層。有些實施範 例，整個材料片可以塗上一邊或兩邊。 、 應該很明顯地，也可以使用額外的滚軸。例如，如果想 要從材料進人純元件的相同平面29内的$形元件間移 除材料片，那麼就可以加人半徑為Rs的第三個弓形元件版 ’女圖5所示。因物理空間考量，可力口入這種條件，譬如仍， 吣和R3最好是相等（同樣的)，但如果需要的話也可以是不 相同的。 以上的實施範例使用一個橫跨整個材料片寬度的弓形 70件。在一些實施範例，可能不想要接觸整個寬度。例如， 用在平板顯示器製造上的玻璃片，必須符合嚴格的表面品 質需求。接觸玻璃片可以被使用的或所謂品質區域，可能 會使表面產生缺陷，而讓玻璃片無法使用。通常所謂品質 200844423 區域是定義為處理期間任何接觸區域的内側區。因此可以 適應弓形元件，使得只有玻璃片的周邊區域可由弓形元件 在片的至少一邊接近玻璃片的外緣來接觸。這種設計顯示 在圖7,圖中說明玻璃片16從一邊的邊緣滾轴3〇和另一邊的 全寬滾軸32贿過。圖巾玻翻16移動的方向是以箭頭來 表示。這種安排保留了至少一邊的表面品質。如果和玻璃 片兩邊的接觸可儘量減少，就可以使用邊緣滾轴在玻璃片 兩邊的周邊區域接觸玻璃片，而不會接觸到玻璃片任何一 邊的品質區域。圖8類似圖7顯示的情形，但圖示了邊緣滾 筒30接觸玻璃片16的兩邊，而不會接觸到玻璃片任何一邊 的中央品質區域。 如果裂隙的強度小於彎曲玻璃片所施用的張應力，玻 璃就可能破裂。在一些實施範例，特別是玻璃沒有塗層時， 破裂的情形就很明顯:玻璃會裂成兩塊或以上的碎片。這 種6形，尤其是在自動化製造過程，裂痕可能不會立即被偵 測出來。因此，可有效使用聲音偵測方法來偵測裂痕。例 如，玻璃片16可置於傳輸線上引起彎曲滚軸32之間，將聲音 偵測态34置放在靠近玻璃片表面處。玻璃内的裂痕產生的 聲音會被聲音偵測器震測到。聲音偵測器經由控制線部電 子輕合至控制器38(譬如電腦38)，可用來停止破璃片在滾 軸間的移動。其他的控制功能還可包括像是啟動聽覺和/ 或視覺警鈴。 對於熟悉此項技術的人而言，本說明的好處應該是顯 而易見的，這裡所描述的各式滾軸設置可置放在靜止的框 第12 頁 200844423 架上，脆性材料片相對於滾軸移動，使材料片的連續部分實 i亥強度測试。或者，小型滚軸也可放在手提式框架上以 產生個可攜式強度測試器。於是要被雖式的脆性材料片 邊緣，可_手贼触·脉手相擒獅操作者之 間，相對於材料片移動測試器以測試相對於預定強度值的 材料片邊緣強度。 雖然本發a犯觸抒_滅綱，熟知此技術者 將I二由先兩的§細了解百分比許多替代情況，改變及變化 。因而，本發明預期包含所有這些替代情況，改變，及變化 ，其均屬於下列申請專利範圍之精神及範圍内。 【附圖簡單說明】 第一圖是以MPa為單位施用的驗證測試張應力，作為彎 曲玻璃片二種厚度的弓形元件(例如滚軸)以cm為單位的曲 度半徑函數圖形。 第二圖是依據本項發明實施範例，使用單一滾軸或套 筒驗證測試脆性材料片的設備側面圖。 第二圖是依據本項發明實施範例，使用單一非圓形弓 形元件驗證測試脆性材料片的設備側面圖。 第四圖是依據本項發明實施範例，顯示施用在被驗證 測试玻璃片的安全應力，作為驗證測試中所用彎曲半徑的 函數圖形。 第五圖是本項發明另一個實施範例，使用兩個弓形元 件在不同方向彎曲脆性材料片。 第六圖是本項發明另一個實施範例，使用三個弓形元 200844423 件在=同方向彎曲脆性材料片，並移回玻璃 >;至輸入面。 第七圖是本項發明另一個實施範例，使用在片狀物的 材料片邊緣的弓形元件，在另一邊接觸整 個片狀物寬度的弓形元件。 第八圖是本項發明另一個實施範例，使用只接觸脆性 材料片邊緣的弓形元件。 附圖元件數字元號說明： 曲線10,12,14;脆性材料片16;弓形元件18;曲線 =2,24;第-邊26;第二邊28;平面29;邊緣滾轴3〇; 王見滾軸32;聲音偵測器、34;控制線36;控制器洲。 第 14 頁Force, here the Eo is about 70.9GPa. Because I don't know the J of the code 1737 glass, so the parameter α of the pure stone stove. However, in fact, α is at 1% strain (100kpsi) n 3% of hiding, which can be omitted to avoid unnecessary errors. The thickness of the glass sheet can be micrometers (curve 10), shed micrometers (curve 12) and 700 micrometers (curve 14). According to an embodiment of the present invention, a method for verifying a test Xie Sheng film is described. The sheet of brittle material generally comprises glass or ceramic glass, and may comprise other brittle materials which form an elastic sheet. Referring to Fig. 2, an embodiment of this embodiment is made by f-curvable material sheet 16 on an arcuate member 18 having a sheet curvature R. Such as tree 18 can be _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ). The frangible material sheet 16 can be moved over the bow element 1: abundance so that the predetermined length peak of the material sheet 16 is also subject to the added bow and bow. The predetermined length may be the entire length of the sheet of material or may be π part length. Alternatively, the arcuate element can be moved over the brittle lion 16 to keep the arched element stationary. , , fine select the old __ diameter _, so that f gives the age _ stress. That is, the required stress value, and therefore the minimum strength required, can be determined by the half (four) degree of the curved bow member on which the sheet of material is placed. Figure 4 shows the test radius of the test piece in the material sheet to provide a safe bend radius for subsequent use, such as in an instantaneous bending condition (curve 20); bending over a longer period of time (a few hours of bending-curve; and years of bending conditions ( For example, more than 5 years - curve 24). For example, please see Figure 4. If the piece of material includes a 100 cm long bend radius, a UJ5 style test half control (radius curvature of the bow element) of 50 mm will be required to ensure It has been used for more than 5 years. If material # is rolled up and stored, this situation is encountered during the period. The sacred narrative of the moon 匕k can be clearly presented, and the use of a single bow element requires the material >1 to be metamorphosed in God (assumed material) Then it is above the paste-shaped component.) Or more importantly, the pull produced by the embodiment of Figures 2 and 3 is applied to the single-edge of the material sheet 。6, that is, only in the single-square The other side of the bow-shaped element produces tension, while the - edge of the contact bow-shaped piece is '(9) into a sink. In order to make the tensile stress of the other side of the material piece 16 the same, the material piece needs to be rotated and the second time Continue on the bow element through page 10 200844423 j 5 1 not In a more efficient embodiment of the invention, the two arcuate elements are in contact with the sheet of material 丄, the 弓t ^ ^ I of the arcuate element and the coffee, and each of the other side of the element contacts the sheet of material 16. That is to say, the exchange of pieces is __. Material _6 yarn has a curvature radius of R1 on the first arcuate element plate (for example, in time to 0) 'and then in the second direction different from the direction of the brother - bending in the curvature radius _ second The arcuate element is on the surface (for example, in a counterclockwise direction. Therefore, the first side 26 of the sheet of material 16 is subjected to tensile stress, and then the second side 8 is subjected to tensile stress, and the sheet of material 16 between the arcuate members only needs to pass one time. To apply tensile stress to both sides of the sheet of material. To ensure that the edge of the sheet of material is protected from mechanical damage after the verification test, a protective layer may be applied to the edge. For example, a polymeric protective layer may be applied to the edge. For example, the entire piece of material can be coated on one or both sides. It should be obvious that additional rollers can also be used. For example, if you want to remove material from the $-shaped elements in the same plane 29 where the material enters the pure component Piece, then you can add the third arcuate component version with radius Rs as shown in Figure 5. Because of physical space considerations, you can force this condition, for example, still, R3 and R3 are preferably equal (the same ), but if needed The words may also be different. The above embodiment uses a bow 70 that spans the width of the entire sheet of material. In some embodiments, it may not be desirable to touch the entire width. For example, a glass sheet used in the manufacture of flat panel displays must Meets stringent surface quality requirements. Contact glass sheets can be used or so-called quality areas, which can cause defects on the surface and make the glass sheets unusable. The so-called quality 200844423 area is defined as the inner area of any contact area during processing. It is thus possible to adapt the arcuate element such that only the peripheral region of the glass sheet can be contacted by the arcuate element on the outer edge of the glass sheet on at least one side of the sheet. This design is shown in Figure 7, which illustrates the edge of the glass sheet 16 from one side of the roller. 3〇 and the full width roller 32 on the other side is bribed. The direction in which the towel glass 16 moves is indicated by an arrow. This arrangement preserves the surface quality of at least one side. If contact with both sides of the glass sheet is minimized, It is possible to use the edge roller to contact the glass sheet in the peripheral area on both sides of the glass without touching The quality area on either side of the glazing. Figure 8 is similar to the situation shown in Figure 7, but illustrates that the edge roller 30 contacts both sides of the glass sheet 16 without touching the central quality region on either side of the glass sheet. If the strength of the crevice is less than The glass may break when the tensile stress applied by the curved glass sheet is broken. In some embodiments, especially when the glass is not coated, the crack is obvious: the glass will split into two or more pieces. Especially in the automated manufacturing process, cracks may not be detected immediately. Therefore, sound detection methods can be effectively used to detect cracks. For example, the glass sheet 16 can be placed on the transmission line to cause bending between the rollers 32, The sound detection state 34 is placed close to the surface of the glass sheet. The sound generated by the crack in the glass is detected by the sound detector. The sound detector is electronically coupled to the controller 38 via the control line (such as a computer 38). ), can be used to stop the movement of the glass between the rollers. Other control functions may also include, for example, activating an audible and/or visual alarm. For those skilled in the art, the benefits of this description should be apparent, and the various roller arrangements described herein can be placed on a stationary frame on page 12, 200844423, with a sheet of brittle material moving relative to the roller. The continuous portion of the sheet of material is tested for strength. Alternatively, a small roller can be placed on a hand-held frame to create a portable strength tester. It is then necessary to test the edge strength of the sheet relative to the predetermined strength value relative to the sheet of material by the edge of the brittle material sheet, between the thief and the lion operator. Although this issue is a slap in the face, the person familiar with this technology will understand the percentage of many alternatives, changes and changes in the first two. Accordingly, the present invention is intended to embrace all such alternatives, modifications, and variations, which are within the spirit and scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a verification test tensile stress applied in units of MPa, and a curvature radius function graph in cm as an arcuate member (for example, a roller) of two thicknesses of a curved glass sheet. The second figure is a side view of a device for verifying a test piece of brittle material using a single roller or sleeve in accordance with an embodiment of the present invention. The second figure is a side view of a device for verifying a test piece of brittle material using a single non-circular bow element in accordance with an embodiment of the present invention. The fourth figure is a functional graph showing the safety stress applied to the glass sheets to be tested as a function of the bending radius used in the verification test in accordance with an embodiment of the present invention. The fifth figure is another embodiment of the present invention in which two arcuate members are used to bend a sheet of brittle material in different directions. Figure 6 is another embodiment of the present invention, using three bows 200844423 to bend a piece of brittle material in the same direction and move back to the glass >; to the input face. The seventh drawing is another embodiment of the present invention, in which an arcuate member at the edge of the sheet of material of the sheet is used, and the arcuate member of the entire sheet width is contacted on the other side. The eighth figure is another embodiment of the invention, using an arcuate member that only contacts the edge of the brittle material sheet. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 10: 12, 14; brittle material sheet 16; arcuate element 18; curve = 2, 24; first side 26; second side 28; plane 29; edge roller 3 〇; See roller 32; sound detector, 34; control line 36; controller continent. Page 14