200532683 九、發明說明： 【發明所屬之技術領域】 本發明，是關於以固定模具與活動模具之間所形成的膜 腔(cavity)成形出由凹洞（Pit)所複製之光碟基板、及貼合的 - 凹洞未進行複製之仿真光碟基板的光碟基板成形用模具。 . 【先前技術】 DVD-5中所代表的光碟，是以各固定模具與活動模具之間 所形成的膜腔(cavity)，各成形出由凹洞（tip)所複製之光碟 基板（以下稱之為「複製光碟基板」）、及凹洞未進行複製的 仿真光碟基板（以下稱之為「仿真光碟基板」），再將前述複 製光碟基板與前述仿真光碟基板貼合後所製造而成。而且關 於别述光碟之仿真光碟基板的成形方面，則採用昔知專利文 獻1上所記載之光碟基板成形用模具進行射出成形。專利文 獻1上所記載之仿真光碟基板成形用模具的基本結構，幾乎 同於複製光碟基板成形用模具的結構。總之，複製光碟基板 的成形用模具，是在固定模具與活動模具之任一方鏡面板 上’配設複製凹洞的壓模機（以下稱之為「複製用壓模機」）， 仿真基板獻彡用模具則代^模機，而配設無凹洞 複裝之壓模機（以下稱之為「匿影(blank)壓模機」）。因此成 心仿真光碟基板時’必須在成形用模具上加裝昂貴的匿影壓 模機。此外’成形關具上也需設置麵機支撐座與麗模機 更換裝置°再者’前述匿影壓模機是屬消耗品，因此每當已 達到所預定成形次數時，就需執行更換作業。 、士之下以仿真光碟基板而言，形成複製光碟基板貼 200532683 合面的鏡面板表面上則未配設匿影壓模機，而且也將鏡面板 表面視為膜腔形成面。但由不銹鋼所構成的鏡面板表面則有 實施精密加工，該表面視為膜腔形成面，再成形仿真光碟基 板貼合面後，便會發生仿真光碟基板脫模不良的問題。為了 解決脫模不良的問題，因而採用藉由放電加工機等，將鏡面 板表面作成粗面的膜腔形成面，以消除脫模不良的問題。但 此時，鏡面板表面光潔度過粗後，會發生仿真光碟基板變成 霧面玻璃狀而降低透明度的問題。而且與複製光碟基板貼合 後，即使在仿真光碟基板表面上印刷，印刷後的顏色也會變 成白色混濁狀’而有損光碟製品的外觀。基於上述理由的關 係，昔知的仿真光碟基板貼合面實際上都是藉由匿影壓模機 來成形。 特開平9-212916號公報（申請項目卜圖7乃至圖1〇) 【發明内容】 一、所欲解決之技術問題： 有鑑於上述問題，本發明光碟基板成形用模具的目的在 於提供，在仿真光碟基板上成形複製光碟基板之間的貼合面 時，則藉用匿影壓模機所配設的模具，以解決提高成本的問 題、及更換匿影壓模機的繁雜手續問題。而且，光碟基板成 形用模具的目的更在於提供，不發生仿真光碟基板貼合面脫 模不良的問題，也不讓前述貼合面變成霧面玻璃狀，而有損 光碟外觀問題。 一、解決問題之技術手段： 200532683 如本發明權利要求1所述，是一種以固定模具與活動模 具之間所形成的膜腔，成形出由凹洞所複製之光碟基板、及 貼合其凹洞未進行複製之仿真光碟基板的光碟基板成形用模 具，其特徵在於：前述仿真光碟基板上有形成出由前述凹洞 所複製之光碟基板的貼合面，在未配設壓模機的鏡面板表面 上’至少有塗佈一種DLC、II化合物、碳化合物及碳化鶴。 如本發明權利要求2所述，是一種以固定模具與活動模 具之間所形成的數個膜腔，同時成形出由凹洞所複製之光碟 基板、及在該凹洞所複製的光碟基板上，貼合其凹洞未進行 複製之仿真光碟基板的光碟基板成形用模具，其特徵在於： 在凹洞所複製之光碟基板所成形的膜腔鏡面板表面上有配設 壓模機’而形成出仿真光碟基板所成形的膜腔、與前述凹洞 所複製之光碟基板的貼合面，在未配設壓模機的鏡面板表面 上’則至少有塗佈一種DLC、氮化合物、碳化合物及碳化鶴。 二、對照先前技術之功效： 本發明光碟基板成形用模具，是在仿真光碟基板上，形 成出凹洞複製光碟基板的貼合面，而在未配設壓模機的鏡面 板表面上，至少塗佈一種DLC、氮化合物、碳化合物及碳化鎢， 不使用昂貴的匿影壓模機，便得以形成光碟基板的貼合面。 而且此時，前述鏡面板鏡面與仿真光碟基板貼合面之間不會 發生脫模不良，也不會讓前述貼合面變成霧面玻璃狀，而有 損光碟外觀的問題發生。 【實施方式】 200532683 以下基於圖1、圖2，詳細說明本發明實施形態。圖i表 示實施本發明之光碟基板成形用模具的重要部位剖面圖。圖2 表不貼合本發明光碟基板之光碟中心開口附近的放大剖面 圖。 實施形態之光碟基板成形用模具U，與凹洞（tip)複製光 碟基板（以下稱之為「複製光碟基板B」）貼合，成形出凹洞 未進行複製的仿真光碟基板（以下稱之為「仿真光碟基板 A」）。如圖1、圖2所示，成形用模具η是由固定模具a與 活動模具13所構成，會在合模後的兩模具12、13之間，形 成出可變容積膜腔14。被安裝於未出具在圖式上的射出成形 機固定盤的固定模具12,是由固定模板15、在固定模板15 反隔熱板16侧上擁有透過固定内板17而被貼合之冷卻流道 的固定鏡面板18、固定模板15、固定内板17、及被嵌插於固 定鏡面板18中心開口的閘門插件19、澆口套2〇、在固定内 板17及固定鏡面板18外周端面上被嵌插於貼合在固定模板 15的固定外周環21等所構成。而且，本實施形態中的固定鏡 面板18之活動模具侧表面，並未安裝凹洞未進行複製的壓模 機（以下稱之為「匿影(blank)壓模機」），固定鏡面板π之 活動模具侧表面，則連同其他閘門插件19之活動模具侧表 面，各構成出膜腔形成面18a，19a。 此外，正如圖1、圖2所示，被安裝於未出具在圖式上的 射出成形機之活動盤的活動模具13，是由活動模板22、被黏 合於活動模板22之固定模具側面的活動内板23、在活動模板 200532683 22之固定模具側面上透過活動内板23擁有被黏合之冷卻流 道的活動鏡面板24、受到活動鏡面板24外周部所支撐的外周 膜腔形成塊(blod〇25、被插入於活動内板23及活動鏡面板 24中心開口的圓柱狀内周膜腔形成塊26、被嵌插於内周膜腔 形成塊26内孔而朝軸向自由滑動的喷射器27、被嵌插於喷射 器27内孔而朝軸向自由滑動的公刀28、被嵌插於公刀28内 孔而朝轴向自由滑動且為了在前面讓仿真光碟基板A契合於 活動桓具侧而設有契合部29a的突出插梢29、被嵌插於活動 内板23及活動鏡面板24外周端面且被貼合於活動模板22的 活動外周環30等所構成。 本實施形態’是在内周膜腔形成塊26 gj定模具侧表面的 膜腔形成面26a外周部上，形成出環狀突起26b。此環狀突起 26b會形成於’因應複製光碟基板B所成形之成形用模具（未 出具在圖式）内周顧機支樓座爪部突起的位置上。再者， 本發明所言之關（ti_包含了，被複製於概專用型光碟 用光碟基板的關、及被難於寫人型光_辆基板的溝 槽(giOQve)。此外，前述内周膜腔形成塊26與活動鏡面板％ =間則3又有，當仿真光碟基板A脫模時會喷出空氣的脫模空 氣通路31。此外，有時也可在活動模具13外周膜腔形成塊 25與活動鏡_ 24之間，設置當脫模時會喷出空氣的脫模空 氣通路。而且’本實施形態的活動鏡面板24之固定模具侧表 面並未安紐雜類’活動鏡面板24之固定模具側表面， 則連同前述内周膜腔形成塊26固定模具側表面，各構成出膜 200532683 腔形成面24a、26a。而且，活動鏡面板24膜腔形成面24a， 則形成出仿真光碟基板A貼合面的A1面。 本實施形態，在活動鏡面板24膜腔形成面24a上有塗佈 Tin (氮化欽）（維克斯硬度HvlOOO乃至Hvl400 )，形成出厚 度1 //m乃至10#m。而且，此活動鏡面板24的塗佈Tin在形 成塗佈膜後，用鑽石貧等進行精整加工。關於此塗佈Tin精 整加工，除了前述以外的方法，也可採用物理表面處理方法， 精整加工後的表面光潔度（十點平均光潔度）為〇 〇5#mRz 乃至〇.4//mRz。再者，Tin與DLC (類鑽石碳膜）相較之下， 摩擦係數及表面光潔度較大，因此有利於確保上述表面光潔 度。此外，活動鏡面板24之膜腔形成面24a上所塗佈的材料， 除了 Tin之外也可塗佈TiCN、TiCrN、TiALN等鈦氮化合物、 Sin、Si‘等矽氮化合物、AIN、TaN、ZrN等其他氮化合物。 此外，還可塗佈SiC、TiC等碳化合物。此外，也可塗佈dlc (類鑽石碳膜）。關於上述塗佈方面，厚度約為乃至1〇 //m。此外，也可將WCC (塗佈碳化鎢）、硬質鉻等金屬 樹脂（順或PFA)厚度塗佈為30_乃至lmm。再者f前述 塗佈材，也可塗佈數層種類不同的塗佈材。這些塗佈則依據 PVD、CVD、賴CVD法等進行蒸鍍、陰極濺射環、金屬喷鑛、 電鍍塗佈等。而且，有時會進行精整加卫，將表面光潔度又加 工成0.05/zinRz乃至〇·4_ζ左右。再者，本實施形態，只 在活動鏡面板24膜腔形成面24a上執行前述塗佈，但:可^ 固定鏡面板18膜腔形成面18a上執行前述塗佈。再者，内周 200532683 膜腔形成塊26、閘門插件19膜腔形成面伽、咖，也 行前述塗佈。 接下來’將說明本實施形態使用成形用模具11的仿真光 碟基板A成形工程、仿真光碟基板A貼合減光碟基板B以 製造光碟C的工程。首先，對於成形用模具11固定模且12 而言，活動模具13則形成出合模的膜㈣，且從未出具在圖 式上的射出裝置，將聚碳酸酯所構成之約·。c的熔融樹脂射 出填充於則述膜腔14。而且，前述熔融樹脂只在膜腔内進 仃冷卻、固化與收縮。此時本實施形態是藉由塗冑加❾活· 動鏡面板24之形成面24a，而在仿真絲基板A上形成 出複製光碟基板8 _合面A卜而且，結束冷卻、固化後’ 驅動未出具在圖式上的模開閉裝置’讓活動模具開模，成 形仿真光碟基板A及未出具在圖式上的洗口，則受到突出插 梢29契合部29a及活動模具13所支撐。 此時，活動模具13 _前後，來自於脫模空氣通路31 的空氣’、會遍及仿真光碟基板A貼合賴、與活動鏡面板％ _ 膜腔形成面24a之間，而促進從仿真光碟基板A活動模具^ 進行脫模。此時，内周膜腔形成塊26上會形成出環狀突起 26B ’並朝活動鏡面板24之膜腔形成面施方向大量供應空 氣。關於這-方面，仿真光碟基板A在冷卻、固化時的收縮， 是朝内周側進行收縮，因此環狀突起之模開閉方向面、 與膜腔14⑽仿真光碟基板a之間幾乎不出現間隙，且超過 -半的找’咖活練面板24之驗形成面％側進行供 11 200532683 應。再者，此時也可從活動鏡面板24外周側，供應脫模用空 氣。 、 而且，仿真光碟基板A在脫模時，本實施形態上的活動 鏡面板24膜腔形成面24a，有塗佈被精整加工成表面光潔度 為〇.〇5/zmRz乃至0.4/zmRz的Tin，因此相較於精整加工成 〇· 〇2//mRz乃至〇· 〇3#mRz，而由昔知的不銹鋼所構成的活動 鏡面板表面順利脫模仿真光碟基板A。此外，相較於昔知放電 加工機，疋由不錄鋼所構成的活動鏡面板表面，粗面加工成 1· 〇//mRz乃至5· 0//mRZ，讓仿真光碟基板A貼合面呈霧面玻_ 璃狀而本實施形恶的仿真光碟基板A表面不會形成霧面玻 璃狀，且得轉持仿真光碟基板A的透明度。再者，活動鏡 面板24膜腔形成面24a有塗佈Tin，除了脫模性佳之外，成 形時也可減少活動鏡面板24之膜腔形成面24a的摩耗。但因 長期間成形而雜膜腔形成面24a時，也可重新將活動鏡面 板24之膜腔形成面24a精整加工成上述表面光潔度。此外， 為了修正活動鏡面板24的摩耗對策、與兩模具12、丨3的尺 _ 寸誤差，也可在活動鏡面板24、活動内板23内面，放入填縫 片與隔板。 ' 脫模的刖述仿真光碟基板A，是藉由未出具在圖式上的取 出機，從成形光碟基板機進行吸附、移出。而且被移出的仿 真光碟基板A，是藉由複製凹洞的壓模機（以下稱之為「複製 用壓模機」）’所配設之未出具在圖式上的成形用模具而成形 的複製光碟基板B、經過銘蒸鑛等工程後所貼合而成。此時， 12 200532683 則如圖2所示，複製光碟基板B的凹洞，則在被複製的複製 面B1上貼合仿真光碟基板a貼合面Ai。而且，透過内周壓模 機支撐座爪部的突起讓複製光碟基板β上所形成的環狀凹部 Β2、及藉由内周膜腔形成塊26之環狀突起26β而在仿真光碟 基板Α上所形成的環狀凹部Α2，在相同位置上進行對置。因 此貼合時，被塗佈於複製面B1的黏著劑D，並不會從前述環 狀凹部A2、B2而流往内周孔A3、B3。而且，其後的仿真光碟 基板A貼合面，則被印刷於相反侧的印刷面A4 (本實施形態 上，是藉由固定鏡面板18膜腔形成面18a所成形的面），而 形成出擁有相反於複製光碟基板B複製面B1之讀取面B4的 DVD磁碟。此時，印刷顏色會變成白濁狀，而不影響外觀。 再者，本發明已針對藉由上述塗佈的活動鏡面板24之膜 腔形成面24a，形成仿真光碟基板a貼合面A1進行敘述，但 也可成形印刷面A4。關於藉由膜腔形成面24a所成形的仿真 光碟基板A之面，其貼合面A1比起印刷面A4可望能在後續 工程上提升印刷性。此外，設置上述表面光潔度膜腔形成面 24a的模具，由於仿真光碟基板A是受到活動模具13所支撐 而開模，因此為了提升開模後的脫模性，設置於活動模具13 上則最具效果。但，本發明並未受限於上述實施例，也可塗 佈固定模具的固定鏡面板膜腔職面，以藉由觸腔形成面 形成出仿真光碟基板A的貼合面A1。此外，被仿真光碟基板 A貼曰的複I光碟基板β的成形模具方面，前述複製用壓模機 也可配设於固定模具。再者，也可同時成形2片以上仿真光 13 200532683 碟基板而設置數個膜腔。 接下來，將說明本發明第二實施形態上的光碟基板成形 用模具41。圖3表示本發明第二實施形態的光碟基板成形用 模具41的重要部位剖_。如第二實施形態所示，是以數個 膜腔44、45同時成形出’讓複製光碟基板b及該複製光碟基 板B上所貼合的仿真光碟基板A，形成於固定模具42與活動 模具43之間的光碟基板成形用模具41。再者，在此省略說明 同於上述實施形態的部分。 第二實施形態之光碟基板成形用模具41的固定模具籲 42 ’有内置熱流道(hot runner)機構46，並配設了接觸未出 具在圖式上的射出裝置喷嘴的噴嘴接觸部47，這是藉由加熱 器而在刖述喷嘴接觸部47上連接加熱連座48。而且，熔融樹 脂通路49則用前述連座48内部進行分岐，再將熔融樹脂供 應到前述膜腔44、45。而且，連座48兩侧則有連接透過相同 加熱器所加熱的噴嘴50、50，噴嘴5〇、50被連接於各洗口套 51 51而且，刖述澆口套51、51外周上則配設了閘門插件鲁 5—2、52 ’前述閘門插件52、52外周上則配設形成冷卻溝的固 定鏡面板53、53。而且’前述固定鏡面板53、53的活動模具 侧表面，皆未配設複製用壓模機或匿影壓模機，前述表面則 形成出膜腔形成面53a、53a。 此外，第二實施形態的活動模具43，是在一方膜腔 侧上配si只有轉鏡面板54的複製肖麵機55 (厚度〇. 2咖 錦製複製職模機）。*且前述複製賴模機55，是藉由外周 14 200532683 壓模機支撐座56、内周壓模機支撐座57、及未出具在圖式上 的壓模機吸引手段的空氣吸引方式受到前述活動鏡面板54表 面所支撐。此外，内周壓模機支撐座57内周上，則有配設固 疋套官58，其内周則有配設喷射器59、公刀6〇、及突出插梢 61。而且’另一方膜腔45側面的活動鏡面板⑽上，並未配 設複製用壓模機55或匿影壓模機，而讓活動鏡面板62固定 模具側面形成出膜腔形成面62a。前述活動鏡面板62之膜腔 形成面62a，屬於形成仿真光碟基板a貼合面A1的面，且有 執行上述實施形態般的塗佈Tin，而提升前述貼合面A!的脫馨 模性。此外，内周膜腔形成塊63、脫模空氣通路64等構成上 也同於上述實施形態。再者，除了在膜腔形成面62a上塗佈 Tin之外，也可塗佈至少一種dlc、氮化合物、碳化合物及碳 化鶴’關於這一點也是相同。 接下來，將說明第二實施形態之光碟基板成形用模具41 的成形。對於固定模具42而言，活動模具43會藉由合膜而 形成出可變容積的二個膜腔44、45。此時，成形複製光碟基 φ 板B的膜腔44上，則有配置厚度〇· 2刪複製用壓模機55，且 依據前述壓模機55的厚度，是讓固定鏡面板53之膜腔形成 面53a、與活動鏡面板54之固定模具侧表面之間的距離，比 成形仿真光碟基板A的膜腔45還長的方式所設計而成。再 者，關於第二實施形態方面，為了調整藉由膜腔44、45所成 形的光碟基板A、B板厚而插入填縫片或隔板、或個別控制左 右嘴嘴50、50溫度，以調整對熔融樹脂膜腔44、45的射出 15 200532683 填充量等。而且，藉由從未出具在圖式上的射出裝置，經過 &述熱流道機構而射出填充的熔融樹脂，透過前述二個膜腔 44、45以同時成形光碟基板A、B。其後當活動模具43開模 後’仿真光碟基板A與複製光碟基板B，皆受到活動模具43 所支撐。而且，接下來在執行光碟基板A、b脫模時，關於仿 真光碟基板A方面，會在活動鏡面板62之膜腔形成面62a上 塗佈Ti η ’讓貼合面A1得以順利脫模。此外，關於複製光碟 基板β方面，來自於複製用壓模機55的複製面Β1也可順利 脫模’而且同時成形的光碟基板A、Β則從成形機中取出後， 則在後續工程上進行貼合。 再者，以第二實施形態例而言，已說明過讓複製光碟基 板B與被貼合於該複製光碟基板B的仿真光碟基板a同時逐 片成形，並於後續工程進行貼合的DVD—5光碟成形，但前述 光碟基板成形用模具，也可同時各成形出2片以上的光碟基 板A、B等。此外，以實施例之一而言，將仿真光碟基板各黏 貼於被複製在兩面的複製光碟基板兩侧時，也可同時成形3 片。再者，關於第二實施形態方面，複製用壓模機55也可被 配設於固定模具42。 此外，本發明方面雖未逐一列舉各實施例，但並未限定 於上述實施形態，因此熟習該項技術者亦可沿襲本發明主旨 而加以變更，但凡依據本發明之修改或變更，只要是在本發 明主旨範圍内，皆應涵屬於本發明。 【圖式說明】 16 200532683 【圖式說明】 剖面;。表τ實〜本㈣之辆基域糊模具的重要部位 β表示貼曰本發明光碟基板之光碟令心開口附近的放 大剖面圖。 圖3表示在本發明第二實施形態上，光碟基板成形用模 具的重要部位剖面圖。 【主要元件符號說明】 11、41 光碟基板成形用模具 12'42 固定模具 13 ' 43 活動模具 14、44、45 膜腔 15 固定模板 16 隔熱板 17 固定内板 18、53 固定鏡面板 18a、19a、24a、26a、53a、62a 膜腔形成面 19 ' 52 閘門插件 20'51 澆口套 21 固定外周環200532683 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to forming a disc substrate copied by a recess (Pit) from a film cavity formed between a fixed mold and a movable mold, and a paste Closed-A mold for forming a disc substrate that simulates a disc substrate without the recesses copied. [Prior technology] The optical disc represented in DVD-5 is a film cavity (cavity) formed between each fixed mold and a movable mold, and each is formed with a disc substrate (hereinafter referred to as a replica) that is copied by a tip. It is a "replicated optical disc substrate"), and a simulated optical disc substrate (hereinafter referred to as "simulated optical disc substrate") in which the recesses are not copied, and then the copied optical disc substrate and the aforementioned simulated optical disc substrate are bonded together. In addition, as for the forming of the artificial optical disc substrate of other optical discs, injection molding is performed using a mold for forming an optical disc substrate described in Patent Document 1 of the Past. The basic structure of a mold for forming an optical disc substrate described in Patent Document 1 is almost the same as the structure of a mold for forming an optical disc substrate. In short, the mold for replicating the optical disk substrate is a stamper with 'replication recesses' (hereinafter referred to as a "reproducer stamper") provided on either side of the fixed mold and movable mold.彡 The mold is replaced by a mold, and a moldless machine (hereinafter referred to as a "blank molder") is provided. Therefore, in order to simulate the optical disk substrate, it is necessary to add an expensive masking die to the forming mold. In addition, the forming machine needs to be equipped with a surface machine support base and a die-molding machine replacement device. Furthermore, the above-mentioned hidden shadow die-pressing machine is a consumable, so whenever the predetermined number of forming times has been reached, the replacement operation needs to be performed. . In terms of artificial disc substrates, the mirror panel surface forming the duplicated disc substrate sticker 200532683 is not equipped with a shadow stamper on the surface of the mirror panel, and the mirror panel surface is also regarded as the film cavity forming surface. However, the surface of the mirror panel made of stainless steel is precision-machined. This surface is regarded as the film cavity forming surface. After the bonding surface of the simulated optical disc substrate is formed, the problem of poor demolding of the simulated optical disc substrate will occur. In order to solve the problem of poor mold release, the surface of the mirror plate is made into a rough film cavity forming surface by an electric discharge machine or the like to eliminate the problem of poor mold release. However, at this time, after the surface finish of the mirror panel is too coarse, the problem that the substrate of the simulated optical disc becomes matte glass and reduces transparency will occur. Furthermore, even after printing on the surface of a simulated optical disc substrate after bonding it to a duplicate optical disc substrate, the printed color will become white and turbid ', thereby deteriorating the appearance of the optical disc product. Based on the above reasons, the past bonding surfaces of the simulated optical disc substrates are actually formed by a shadow stamper. Japanese Patent Application Laid-Open No. 9-212916 (application items, FIG. 7 to FIG. 10) [Summary of the Invention] 1. Technical Problems to be Solved: In view of the above problems, the purpose of the mold for forming an optical disk substrate of the present invention is to provide, in simulation When forming the bonding surface between the duplicated optical disc substrates on the optical disc substrate, the mold provided with the shadow mask die is borrowed to solve the problem of increasing costs and the complicated procedures of replacing the shadow mask die. Moreover, the purpose of the mold for forming the optical disc substrate is to provide a problem that the mold release failure of the bonding surface of the simulated optical disc substrate does not occur, and that the aforementioned bonding surface does not become matte glass, which may damage the appearance of the optical disc. I. Technical means to solve the problem: 200532683 As described in claim 1 of the present invention, a film cavity formed between a fixed mold and a movable mold is used to form a disc substrate copied by a cavity, and the cavity is attached to the cavity. The optical disc substrate forming mold for a simulated optical disc substrate without copying holes is characterized in that: the above-mentioned simulated optical disc substrate has a bonding surface on which the optical disc substrate copied by the recess is formed; The surface of the panel is coated with at least one kind of DLC, II compound, carbon compound and carbonized crane. According to claim 2 of the present invention, a plurality of film cavities formed between a fixed mold and a movable mold are used to simultaneously form an optical disc substrate copied by a cavity and an optical disc substrate copied by the cavity. A mold for forming an optical disc substrate that is attached to a simulated optical disc substrate whose recess has not been copied is characterized in that: a stamper is formed on the surface of the film cavity mirror panel formed by the optical disc substrate copied by the recess. The film cavity formed by the simulated optical disc substrate and the bonding surface of the optical disc substrate copied by the aforementioned recess are produced, and at least one kind of DLC, nitrogen compound, and carbon compound is coated on the surface of the mirror panel without a stamper. And carbonized cranes. 2. Contrast with the effect of the prior art: The mold for forming the optical disc substrate of the present invention is to form a cavity on the simulated optical disc substrate to replicate the bonding surface of the optical disc substrate, and at least on the surface of the mirror panel without a stamper, at least A DLC, a nitrogen compound, a carbon compound, and tungsten carbide are applied, and the bonding surface of the optical disc substrate can be formed without using an expensive masking die. Moreover, at this time, mold release failure will not occur between the mirror surface of the mirror panel and the bonding surface of the artificial optical disk substrate, and the bonding surface will not be changed into a matte glass shape, which will cause the problem of damaging the appearance of the optical disk. [Embodiment] 200532683 Hereinafter, an embodiment of the present invention will be described in detail based on Figs. 1 and 2. Fig. I is a cross-sectional view of an important part of a mold for forming a disc substrate for carrying out the present invention. Fig. 2 shows an enlarged cross-sectional view near the center opening of the optical disc which is bonded to the optical disc substrate of the present invention. The mold U for forming a disc substrate according to the embodiment is bonded to a recessed copy disc substrate (hereinafter referred to as a "replicated disc substrate B"), and a dummy disc substrate (hereinafter referred to as a recess) is formed without duplication. "Simulation disc substrate A"). As shown in Figs. 1 and 2, the forming mold η is composed of a fixed mold a and a movable mold 13, and a variable-volume film cavity 14 is formed between the two molds 12 and 13 after the mold is closed. The fixed mold 12 installed on the fixed plate of the injection molding machine which is not issued on the drawing is a fixed template 15 and a cooling flow which is fixed on the side of the fixed template 15 against the heat insulation plate 16 through the fixed inner plate 17 Channel fixed mirror panel 18, fixed template 15, fixed inner panel 17, and gate insert 19, gate sleeve 20 inserted into the central opening of fixed mirror panel 18, on the inner peripheral surface of fixed inner panel 17 and fixed mirror panel 18 The upper peripheral ring 21 is inserted into a fixed outer peripheral ring 21 and the like attached to the fixed template 15. Further, in the movable mold side surface of the fixed mirror panel 18 in the present embodiment, a stamper (hereinafter referred to as a “blank stamper”) is not provided with a recess and a copy is not installed, and the mirror panel π is fixed. The movable mold side surfaces, together with the movable mold side surfaces of the other gate inserts 19, each form a film cavity forming surface 18a, 19a. In addition, as shown in FIG. 1 and FIG. 2, the movable mold 13 installed on the movable platen of the injection molding machine not issued on the drawing is a movable mold 22 and a side of the fixed mold bonded to the movable mold 22. Inner plate 23, a movable mirror panel 24 having bonded cooling channels through the movable inner plate 23 on the side of the fixed mold of the movable template 200532683 22, and a peripheral membrane cavity forming block supported by the outer periphery of the movable mirror panel 24 (blod). 25. A cylindrical inner peripheral cavity forming block 26 inserted into the central opening of the movable inner plate 23 and the movable mirror panel 24, and an injector 27 inserted into the inner hole of the inner peripheral cavity forming block 26 to slide freely in the axial direction. The male knife 28 inserted into the inner hole of the ejector 27 to slide freely in the axial direction, the male knife 28 inserted into the inner hole of the male knife 28 to slide freely in the axial direction and in order to fit the simulated optical disc substrate A to the movable fixture in front A projecting pin 29 provided with a fitting portion 29a on the side, a movable outer ring 30 that is inserted into the outer peripheral end faces of the movable inner panel 23 and the movable mirror panel 24, and is attached to the movable template 22, etc. This embodiment 'is 26 gj A ring-shaped protrusion 26b is formed on the outer peripheral portion of the film cavity forming surface 26a with a side surface. This ring-shaped protrusion 26b is formed in a molding mold (not shown in the drawing) formed by copying the optical disk substrate B. The position of the claws of the machine support seat is raised. Furthermore, the term "ti_" in the present invention includes the key that is copied to the optical disc substrate for general purpose optical discs, and the hard-to-write optical type The groove (giOQve). In addition, the aforementioned inner peripheral cavity forming block 26 and the movable mirror panel% = 3 are also provided. When the simulation disc substrate A is demolded, a demolding air path 31 is ejected. In addition, there are At this time, a mold release air passage that ejects air when demolding may be provided between the outer film cavity forming block 25 and the movable mirror _ 24 of the movable mold 13. Moreover, the fixed mold side of the movable mirror panel 24 in this embodiment The surface is not fixed to the mold side surface of the movable mirror panel 24, and the mold side surface is fixed together with the aforementioned inner peripheral film cavity forming block 26, each forming a film 200532683 cavity forming surface 24a, 26a. Moreover, the movable mirror panel 24 膜 Cavity forming surface 24a The A1 side of the bonding surface of the real optical disc substrate A. In this embodiment, Tin (nitride) is coated on the film cavity forming surface 24a of the movable mirror panel 24 (Vickers hardness Hv1000 or even Hvl400) to form a thickness of 1 / / m or even 10 # m. In addition, after the coating Tin of the movable mirror panel 24 is formed into a coating film, finishing processing is performed using diamond or the like. About this coating Tin finishing processing, in addition to the methods described above, A physical surface treatment method can be used, and the surface finish (ten-point average finish) after finishing is 〇05 # mRz or 0.4 // mRz. Furthermore, Tin is compared with DLC (diamond-like carbon film) The friction coefficient and surface smoothness are large, so it is helpful to ensure the above surface smoothness. In addition, the material coated on the film cavity forming surface 24a of the movable mirror panel 24 can be coated with titanium nitrogen compounds such as TiCN, TiCrN, TiALN, silicon nitrogen compounds such as Sin, Si ', AIN, TaN, ZrN and other nitrogen compounds. In addition, carbon compounds such as SiC and TiC can also be applied. In addition, dlc (diamond-like carbon film) can be applied. Regarding the above coating aspect, the thickness is about even 10 / m. In addition, metal resins (cis or PFA) such as WCC (coated tungsten carbide) and hard chromium can be applied to a thickness of 30 mm or even 1 mm. In addition, the coating material may be coated with several coating materials of different types. These coatings are performed according to PVD, CVD, Lai CVD, etc., cathode sputtering rings, metal blasting, and electroplating. In addition, finishing and guarding are sometimes performed, and the surface finish is further improved to about 0.05 / zinRz or even 0.4 · ζ. Furthermore, in this embodiment, the aforementioned coating is performed only on the film cavity forming surface 24a of the movable mirror panel 24, but the aforementioned coating may be performed on the film cavity forming surface 18a of the fixed mirror panel 18. In addition, the inner cavity 200532683 film cavity forming block 26 and the gate insert 19 film cavity forming surface gamma and coffee are also coated as described above. Next, a description will be given of a process of forming a dummy disc substrate A using the forming mold 11 and a process of bonding the dummy disc substrate A to the disc substrate B to manufacture the disc C in this embodiment. First, the fixed molds 12 and 12 of the molding molds 11 and 13 are formed by the movable molds 13 and the polycarbonate is made of an injection device that is not provided in the drawing. The molten resin of c is injected and filled into the film cavity 14. Moreover, the aforementioned molten resin is cooled, solidified, and shrunk only in the film cavity. At this time, in this embodiment, a duplicate optical disk substrate 8 is formed on the artificial silk substrate A by coating and forming the movable surface 24a of the moving mirror panel 24. The composite surface Ab is also driven after the cooling and solidification are completed. The mold opening / closing device that is not issued on the drawing 'allows the movable mold to open the mold, forms the simulated optical disc substrate A, and the washing port that is not issued on the drawing is supported by the protruding portion 29 fitting portion 29a and the movable mold 13. At this time, before and after the movable mold 13 _, the air from the demolding air passage 31 will be attached to the simulated disc substrate A and the movable mirror panel% _ film cavity forming surface 24a, thereby promoting the removal from the simulated disc substrate. A movable mold ^ for demoulding. At this time, a ring-shaped protrusion 26B 'is formed on the inner peripheral film cavity forming block 26, and a large amount of air is supplied toward the film cavity forming surface of the movable mirror panel 24. In this regard, since the shrinkage of the simulated optical disc substrate A during cooling and solidification shrinks toward the inner peripheral side, there is almost no gap between the opening and closing direction surface of the ring-shaped protrusion mold and the film cavity 14⑽ the simulated optical disc substrate a. And more than half of the 24% of the face of the 'workout training panel 24 formation side is provided for 11 200532683 application. Furthermore, at this time, air for demolding may be supplied from the outer peripheral side of the movable mirror panel 24. In addition, when the simulated optical disk substrate A is demolded, the movable cavity panel 24 film cavity forming surface 24a of this embodiment is coated and finished with Tin that has a surface finish of 0.05 / zmRz or 0.4 / zmRz. Therefore, compared with finishing processing to 〇 2 / mRz or even 〇3 〇3 # mRz, the surface of the movable mirror panel composed of the previously known stainless steel is smoothly demolded to simulate the optical disc substrate A. In addition, compared with the previous known EDM, the surface of the movable mirror panel composed of non-recording steel is roughened to 1 · // mRz or 5 · 0 // mRZ, allowing the simulated disc substrate A to be bonded to the surface. It has a matte glass shape, and the surface of the simulated optical disc substrate A in this embodiment does not form a matte glass, and the transparency of the simulated disc substrate A must be transferred. In addition, the film-cavity-forming surface 24a of the movable mirror panel 24 is coated with Tin. In addition to good mold release properties, the abrasion of the film-cavity-forming surface 24a of the movable mirror panel 24 can be reduced during forming. However, when the mixed film cavity forming surface 24a is formed due to long-term forming, the film cavity forming surface 24a of the movable mirror plate 24 may be refinished and processed to the above surface finish. In addition, in order to correct the abrasion countermeasures of the movable mirror panel 24 and the size error between the two molds 12, 3, it is also possible to put caulking sheets and partitions on the inner surfaces of the movable mirror panel 24 and the movable inner panel 23. 'The demodulated dummy optical disc substrate A is sucked and removed from the forming optical disc substrate machine by a take-out machine which is not issued on the drawing. The removed dummy optical disc substrate A is formed by a mold for copying a recess (hereinafter referred to as a "mold for copying") which is not provided with a mold for molding on a drawing. It is made by duplicating the disc substrate B and pasting it after the project such as Ming steaming. At this time, 12 200532683 is shown in FIG. 2, and the recess of the copied optical disc substrate B is bonded to the copied surface B1 of the simulated optical disc substrate a bonding surface Ai. In addition, the protrusions on the support claws of the inner die are allowed to reproduce the annular recessed portion B2 formed on the optical disc substrate β and the annular protrusion 26β formed by the inner peripheral cavity forming block 26 on the dummy optical disc substrate A. The formed annular recessed portions A2 are opposed at the same position. Therefore, during bonding, the adhesive D applied to the transfer surface B1 does not flow from the annular recesses A2 and B2 to the inner peripheral holes A3 and B3. Then, the subsequent bonding surface of the simulated optical disk substrate A is printed on the printing surface A4 on the opposite side (in this embodiment, the surface formed by fixing the film cavity forming surface 18a of the mirror panel 18) to form A DVD disk having a reading surface B4 opposite to the reproduction surface B1 of the reproduction disc substrate B. At this time, the printing color will become white and turbid without affecting the appearance. In addition, the present invention has been described in terms of forming the bonding surface A1 of the optical disc substrate a using the film cavity forming surface 24a of the movable mirror panel 24 coated as described above, but the printing surface A4 may be formed. Regarding the surface of the simulated optical disk substrate A formed by the film cavity forming surface 24a, the bonding surface A1 can be expected to improve printability in subsequent processes than the printing surface A4. In addition, the mold on which the surface finish film cavity forming surface 24a is provided is opened on the movable mold 13 because the simulated optical disc substrate A is supported by the movable mold 13. Therefore, in order to improve the mold release property after the mold is opened, it is most suitable to install on the movable mold 13. effect. However, the present invention is not limited to the above-mentioned embodiment, and the fixed mirror panel film cavity surface of the fixed mold can also be coated to form the bonding surface A1 of the simulated optical disc substrate A through the cavity-forming surface. In addition, as for the forming mold of the complex I optical disk substrate β attached to the simulated optical disk substrate A, the above-mentioned copying stamper may be disposed in a fixed mold. Furthermore, it is also possible to form more than two pieces of artificial light at the same time, and set several film cavities. Next, a disc substrate forming mold 41 according to a second embodiment of the present invention will be described. Fig. 3 is a cross-sectional view of an important part of a mold 41 for forming a disc substrate according to a second embodiment of the present invention. As shown in the second embodiment, a plurality of film cavities 44 and 45 are simultaneously formed to allow a duplicate optical disc substrate b and a simulated optical disc substrate A bonded to the duplicate optical disc substrate B to be formed on a fixed mold 42 and a movable mold. 43, a mold 41 for forming a disc substrate. It should be noted that the description of the same parts as those of the above embodiment will be omitted. The fixed mold 42 of the mold 41 for forming the optical disk substrate in the second embodiment has a built-in hot runner mechanism 46 and is provided with a nozzle contact portion 47 that contacts a nozzle of the injection device that is not shown in the drawing. The heating contact 48 is connected to the nozzle contact portion 47 described above by a heater. Further, the molten resin passage 49 is divided by the inside of the connecting seat 48, and the molten resin is supplied to the film cavities 44, 45. Furthermore, nozzles 50 and 50 which are heated through the same heater are connected to both sides of the joint seat 48. The nozzles 50 and 50 are connected to each of the mouthpiece sleeves 51 and 51, and the gate sleeves 51 and 51 are provided on the outer periphery. The gate inserts Lu 5-2 and 52 are provided on the outer periphery of the aforementioned gate inserts 52 and 52, and fixed mirror panels 53 and 53 forming cooling grooves are provided. Moreover, neither of the movable mold side surfaces of the fixed mirror panels 53, 53 is provided with a stamper for reproduction or a shadow stamper, and the aforementioned surfaces form film cavity forming surfaces 53a, 53a. In addition, the movable mold 43 according to the second embodiment is a copying machine 55 (thickness 0.2 coffee brocade machine) with only a mirror panel 54 on one side of the film cavity. * And the above-mentioned copying mold press 55 is received by the above-mentioned air suction method by the outer periphery 14 200532683 die support base 56, inner die support base 57 and the die suction means not provided in the drawing. The surface of the movable mirror panel 54 is supported. In addition, on the inner periphery of the inner die support base 57 is provided with a fixing sleeve member 58, and on its inner periphery is provided with an ejector 59, a male knife 60, and a protruding pin 61. Moreover, the movable mirror panel ⑽ on the side of the other film cavity 45 is not provided with a copying die 55 or a shadow stamper, and the movable mirror panel 62 is fixed to form a film cavity forming surface 62a on the side of the mold. The film cavity forming surface 62a of the movable mirror panel 62 belongs to the surface forming the bonding surface A1 of the artificial optical disk substrate a, and performs tin coating as in the above embodiment to improve the mold release property of the bonding surface A! . In addition, the configuration of the inner peripheral cavity forming block 63, the demolding air passage 64, and the like are also the same as those of the above-mentioned embodiment. Furthermore, in addition to coating Tin on the film cavity forming surface 62a, at least one type of dlc, nitrogen compound, carbon compound, and carbide can be coated. The same applies to this point. Next, the forming of the mold 41 for forming a disc substrate according to the second embodiment will be described. As for the fixed mold 42, the movable mold 43 forms two film cavities 44, 45 of variable volume by combining the films. At this time, the film cavity 44 of the forming and copying disc base φ plate B is provided with a thickness of 0.2 mm, and a stamper 55 for copying is used. According to the thickness of the stamper 55, the film cavity of the fixed mirror panel 53 is fixed. The distance between the formation surface 53a and the fixed mold side surface of the movable mirror panel 54 is designed to be longer than the film cavity 45 for forming the simulation optical disc substrate A. In addition, regarding the second embodiment, in order to adjust the thickness of the disc substrates A and B formed by the film cavities 44, 45, a caulk or a spacer is inserted, or the temperatures of the left and right mouths 50 and 50 are individually controlled to Adjust the filling amount of injection 15 200532683 to the molten resin film cavities 44, 45 and so on. Furthermore, the injection molten device never issued from the drawing passes through the & hot-runner mechanism to inject the filled molten resin, and passes through the two film cavities 44, 45 to form the disc substrates A, B at the same time. Thereafter, when the movable mold 43 is opened, the 'simulated disc substrate A and the duplicated disc substrate B are supported by the movable mold 43. Further, when the disc substrates A and b are demoulded, Ti η ′ is coated on the film cavity forming surface 62a of the movable mirror panel 62 with respect to the simulated disc substrate A, so that the bonding surface A1 can be demolded smoothly. In addition, as for the reproduction of the optical disc substrate β, the reproduction surface B1 from the reproduction stamper 55 can be smoothly demolded, and the simultaneously formed optical disc substrates A and B are taken out of the forming machine and then carried out in subsequent processes. fit. Moreover, in the second embodiment, it has been described that the duplicated optical disc substrate B and the simulated optical disc substrate a attached to the duplicated optical disc substrate B are formed one by one at the same time, and the DVD to be attached in a subsequent process— 5 Disc forming, but the above-mentioned disc substrate forming mold can also simultaneously form two or more disc substrates A, B, and the like. In addition, in one of the embodiments, when the dummy optical disc substrate is adhered to both sides of the duplicated optical disc substrate copied on both sides, three pieces can be simultaneously formed. In the second embodiment, the copying press 55 may be provided on the fixed mold 42. In addition, although aspects of the present invention are not listed one by one, they are not limited to the above-mentioned embodiments. Therefore, those skilled in the art can follow the gist of the present invention to make changes. Within the scope of the subject matter of the present invention, it should be construed as belonging to the present invention. [Schematic description] 16 200532683 [Schematic description] Section ;. Table τ is an important part of the base-field paste mold of the present invention. Β represents an enlarged cross-sectional view near the opening of the center of the disc attached to the disc substrate of the present invention. Fig. 3 is a cross-sectional view of an important part of a mold for forming a disc substrate in a second embodiment of the present invention. [Description of symbols of main components] 11, 41 Mold for optical disc substrate forming 12'42 Fixed mold 13'43 Movable mold 14,44,45 Film cavity 15 Fixed template 16 Insulation plate 17 Fixed inner plate 18, 53 Fixed mirror panel 18a, 19a, 24a, 26a, 53a, 62a Membrane cavity forming surface 19 '52 Gate insert 20'51 Gate sleeve 21 Fixed outer peripheral ring
I 22 活動模板 23 活動内板 24、54、62 活動鏡面板 17 200532683 25 外周膜腔形成塊 26、 63 内周膜腔形成塊 26B 環狀突起 27、 59 喷射器 28、 60 公刀 29、 61 突出插梢 29a 契合部 30 活動外周環 31、64 脫模空氣通路 46 熱流道機構 47 喷嘴接觸部 48 連座 49 熔融樹脂通路 50 喷嘴 55 複製用壓模機 56 外周壓模機支撐座 57 内周壓模機支撐座 58 固定套管 A 凹洞未進行複製的仿真光碟基板（仿真光碟基板) A1 貼合面 A2、B2 環狀凹部 A3、B3内周孔 A4 印刷面 200532683 B 凹洞進行複製的光碟基板（複製光碟基板) B1 複製面 B4 C 讀取面 光碟 • D 黏著劑 19I 22 Movable template 23 Movable inner plate 24, 54, 62 Movable mirror panel 17 200532683 25 Peripheral membrane cavity forming block 26, 63 Inner peripheral membrane cavity forming block 26B Ring protrusion 27, 59 Ejector 28, 60 male knife 29, 61 Protruding pin 29a Fitting part 30 Movable outer ring 31, 64 Demolding air passage 46 Hot runner mechanism 47 Nozzle contact 48 Joint seat 49 Molten resin passage 50 Nozzle 55 Replicating die 56 Outer die supporter 57 Inner die pressure Mold support 58 Fixing sleeve A Simulated optical disc substrate (simulated optical disc substrate) without duplication of holes A1 Laminating surface A2, B2 Ring-shaped recess A3, B3 Inner peripheral hole A4 Printing surface 200532683 B Optical disc for duplication Substrate (copy disc substrate) B1 Copy surface B4 C Read surface disc • D Adhesive 19