M3 3 3 649 八、新型說明： 【新型所屬之技術領域】 本創作係關於一種導光膜，尤指利用於鍵盤中用以導向 光線至按鍵之導光膜。 【先前技術】 導光板可利用以導引光線到預定的地方，常用於背光模組 中將來自光源的光線導引射向面板。一般來說，導光板的基 材多採用聚甲基丙烯酸甲酯（Poly methyl meth acrylate; PMMA) ’可直接於製造射出成型時，於表面一體成形導光用的 微圖案。聚甲基丙烯酸甲酯的透光率佳且再加工性容易，但是 厚度較厚’約為3mm至l〇mm之間，所以所製成的導光板是為 厚型板材而不易捲覆。 |知技術也有將聚甲基丙烯酸甲酯印刷於他種或同種基 材上的技術，但是除了仍為厚型板材之外，生產時印 微圖案所耗時間較長，因此產量會較小。 其匕種類的光學膜也有薄型的，如聚光膜、擴散膜等， 一般可採用聚對苯二曱酸乙二醇g旨（p〇ly ethylene、、 terephthalate ; PET)，厚度約在 〇. 05mm 至 〇. 25mm 之間， 因為多_在其他光學元件上，較不需要考量機械特性（強 度）。 請參閱圖一’圖一係習知技術導光板製造設備2之示意 圖。因為習知導光板4為較厚之板材，剛性較大，所以可 用圖-以輪送帶6輸送且以滾輪8壓印平板的製造設備來生 M3 3 3 649 產導光板4。利用輸送帶6將尚未成型微圖t 402白勺導光板4 輸运移動，至滾輪(drum)8下時，被輪模壓印而於導光板4 ^面形成《案搬，後續再由輸送"輸送出去，再由後 而裁切成^/這種厚型板材的導光板4 _於空間尚且足 的背光模組中。 ，年來，攜帶式電子裝·功能愈來愈敍，為了做複 ，的貪，交換，多數設有多個按鍵的鍵盤。在半透明石夕膠材 質的助益下，為了使產品酷炫，會於鍵射設計背光，除了 炫目之外，在光線砰朗能藉以辨識按鍵。於攜帶式電子 裝置中，如行動電話、筆記型電腦等，鍵盤的厚度_薄。 ，別是筆記型電腦，—般發光的LED元件厚度約在〇. 2腿 至〇.8刪粒徑之大小，軸導光㈣型化是必要的考量， =盤之面積較大，如聚對苯二曱酸乙二_旨超薄之厚度 ! 獨的支標力會顯得不足，若再與別的機械力強 口白、δ舌’除了難以加工外，也會徒增材料成本。 ^此本創作的主要目的在於提供一種導光膜，以改善 上述問題。 【新型内容】 及制鮮細’ _特定製造設備以 狄方可衣造出預定厚度範圍之導光膜，以適用於如 葦圮型電腦等攜帶錢讀置帽鑛需 :於滚軸上而便 形前的基材層以及成形後的導光膜，皆可捲覆成 於運送以及儲藏。 6 M3 3 3 649 本創作係關於一種導光膜，該導光膜係包含一基材層以 及一塗覆層，該基材層原先係捲覆於一第一滾軸(r〇ller) 上，該導光膜並利用一滾軸式製造設備以製造成型。該滾軸 式製造设備係進一步包含一第一滾軸架(h〇lder)、一塗覆裝 置、一滾輪(drum)、以及一第二滾軸架。 —該第一滾軸架係挾持定位捲覆該基材層之第一滾軸。該 第滾軸上所捲覆的基材層會被拖曳經過該塗覆裝置，該塗 覆裝置係用以將該塗覆層塗佈於該基材層表面，以初步形成 該導光膜。 、—该滾輪上具有至少一輪模，經過該塗覆裝置之導光膜再 被拖曳以貼附於該滾輪之表面，該塗覆層受該輪模之貼壓以 形成至少一微圖案。 ^该第二滾軸架係挾持定位一第二滾軸，於該滚輪形成該 微圖案之導細，賴被拖以捲覆於該第二滾轴上。 其中’該導光膜之厚度係於〇· 〇5腿至lmm之範圍間。該 基材層所使狀材質係可以是《_l(Poly carbonate ; )或疋採用較尽的聚對苯二甲酸乙二醇醋（p〇ly terephthalate ; PET)。該塗覆層可以為聚曱基丙烯酸曱酯 (Poly methyl meth acrylate ; PMMA)、石夕膠（silicone)、 或環氧樹脂(epoxy)等材質。 生因此’藉由本創作的導光膜，配合特定的製造設備與製 造方法’利用特定基材層以及塗覆層的材料，可製造出預定 厚度範圍之導細，兼具理想之频強度以及光學特性，以 適用於如筆㈣電腦之攜帶式電子裝置巾鍵盤所需之導光 7 M333649 板。亚且细滾軸架挾持滚軸的設計 及成形後的導光膜皆可捲覆 t成幵，的基材層 拖价錄上，而便於運送以及儲藏。 ，於本創作之優點與精神可崎由 附圖式得魏-步的_。 _作札及π 【實施方式】 —本創作係關於—種導光膜30。請參_二八以及圖二B， • 圖—A係本創作所製成導光膜3°之剖面示意圖。圖二B係圖 一 A中$細30之局部放大示意圖。導光膜3請於一攜帶 型電子裝置(如筆記型電腦、行動電話)之鍵盤中，以對該鍵 盤上複數健鍵導光。導光膜3()係—滚軸式製造設備 ‘ 40以製造出來，進一步包含一基材層32以及-塗覆層34。 _ 基材層32所使用之材質係可為聚碳酸酯(P〇ly carbonate，PC)、或是採較厚的聚對苯二甲酸乙二醇酯 (Poly ethylene terephthalate ; PET)。塗覆層 34 可以為 馨聚曱基丙烯酸甲酯（p〇ly methyi meth aciyiate ; pmma)、 矽膠(silicone)、或環氧樹脂(epoxy)等材質。其中，導光膳 30之厚度係於〇·〇5麵至1麵之範圍間，且於壓印網點圖案 ‘ 3402元成後，可捲覆於一第二滾軸^^^丨ier)52上。 - 請參閱圖三，圖三係本創作製造設備40之示意圖。製造 设備40係進一步包含一第一滾軸架(h〇ider)42、一塗覆裝ί 43、一滾輪(drum)44、以及一第二滚轴架45。 基材層32原本係捲覆於一第一滚軸(roller)50上。第 一滚軸架42係挾持定位捲覆基材層32之第一滾軸50。 8 M333649 金变壯0上所捲復的基材層32被拖髮會經過塗覆敦 置 土復衣置43係用以將塗覆層34塗佈於基材層烈 面以初步形成導光膜30。 ㈢表 、塗覆方式可採用而不限用於狹缝膜法(slot die)、刮刀 ，(comma) '滾輪帶膠(r〇Her⑺也呢）、或是喷塗(印 等方法。而塗覆層34原本的原料可混加光起始劑，使」 於塗佈之後，被照射紫外線而硬化成塗覆層34，— 、M3 3 3 649 8. New description: [New technical field] This creation is about a light-guiding film, especially a light-guiding film used in a keyboard to guide light to a button. [Prior Art] The light guide plate can be used to guide light to a predetermined place, and is commonly used in a backlight module to direct light from a light source toward a panel. In general, the base material of the light guide plate is usually made of polymethyl methacrylate (PMMA), which can directly form a micropattern for light guiding on the surface when the injection molding is directly performed. Polymethyl methacrylate has a good light transmittance and is easy to rework, but a thicker thickness is about 3 mm to 1 mm, so that the light guide plate is made of a thick plate and is not easily rolled. There are also techniques for printing polymethyl methacrylate on other or the same substrate, but in addition to being thick, it takes a long time to print the micropattern, so the yield is small. The optical film of the ruthenium type is also thin, such as a concentrating film, a diffusion film, etc., generally, polyethylene terephthalate (p〇ly ethylene, terephthalate; PET) is used, and the thickness is about 〇. Between 05mm and 〇. 25mm, because more _ on other optical components, mechanical properties (strength) are not required. Referring to Figure 1, a schematic view of a prior art light guide plate manufacturing apparatus 2 is shown. Since the conventional light guide plate 4 is a thick plate and has a large rigidity, it is possible to produce the light guide plate 4 by using the drawing device which is conveyed by the roller belt 6 and which is pressed by the roller 8 to produce the M3 3 3 649. The light guide plate 4 of the unshaped micrograph t 402 is transported and moved by the conveyor belt 6 to the bottom of the roller 8 when it is pressed by the wheel mold, and the film is moved on the surface of the light guide plate, and then the transport is carried out. After being transported out, and then cut into the light guide plate 4 of the thick plate, it is in the backlight module with sufficient space. In the past years, portable electronic devices and functions have become more and more narrated. In order to do complex, greedy and exchange, most keyboards with multiple buttons are provided. In the light of the semi-transparent Shijiao material, in order to make the product cool, the backlight will be designed in the keystroke. In addition to the dazzling, the light can be used to identify the button. In portable electronic devices, such as mobile phones, notebook computers, etc., the thickness of the keyboard is thin. , not a notebook computer, the thickness of the LED component is about 〇. 2 legs to 〇.8 delete the size of the particle size, the axis light guide (four) type is necessary consideration, = the area of the disk is larger, such as poly The thickness of the bismuth phthalate is very thin! The sole support force will be insufficient. If it is strong with other mechanical forces, the δ tongue will not increase the material cost. ^ The main purpose of this creation is to provide a light guiding film to improve the above problems. [New content] and fresh and refined ' _ specific manufacturing equipment to create a light-guide film of a predetermined thickness range, which is suitable for carrying money such as a computer, such as a computer, to read the cap mine: on the roller Both the substrate layer before the molding and the light guiding film after the molding can be rolled and transported. 6 M3 3 3 649 The present invention relates to a light guiding film comprising a substrate layer and a coating layer which is originally wound on a first roller (r〇ller) The light guiding film is fabricated by a roller type manufacturing apparatus. The roller manufacturing apparatus further includes a first roller frame, a coating device, a drum, and a second roller frame. - the first roller frame holds the first roller that is positioned to wrap around the substrate layer. The substrate layer wound on the first roller is towed through the coating device for applying the coating layer to the surface of the substrate layer to initially form the light guiding film. The roller has at least one wheel mold, and the light guiding film passing through the coating device is further dragged to be attached to the surface of the roller, and the coating layer is pressed by the wheel mold to form at least one micro pattern. The second roller frame is positioned to hold a second roller, and the roller forms a guide of the micro-pattern, and is dragged to wrap around the second roller. Wherein the thickness of the light guiding film is between 腿·〇5 legs to 1 mm. The material of the substrate layer may be "_l (Poly carbonate; ) or 较 using more polyethylene terephthalate (PET). The coating layer may be made of a material such as polymethyl methacrylate (PMMA), silicone, or epoxy. Therefore, by using the light guide film of the present invention, with the specific manufacturing equipment and manufacturing method, the material of a specific substrate layer and the coating layer can be used to manufacture a guide thickness of a predetermined thickness range, which has an ideal frequency intensity and optical. Features, for the guide light 7 M333649 board required for the keyboard of a portable electronic device such as a pen (4) computer. The design of the sub-fine rolling frame holding roller and the formed light guiding film can be rolled up, and the substrate layer is recorded on the price, which is convenient for transportation and storage. The advantages and spirits of this creation can be obtained from the Wei-step of the drawing. _Working and π [Embodiment] - This creation relates to a light guiding film 30. Please refer to _28 and Figure 2B, • Figure-A is a schematic view of the 3° light guide film made by this creation. Figure 2B is a partial enlarged view of $30 in Figure A. The light guiding film 3 is placed in a keyboard of a portable electronic device (such as a notebook computer or a mobile phone) to guide light on the plurality of keys on the keyboard. The light guiding film 3 () is a roller-type manufacturing apparatus ‘40 to be manufactured, further comprising a substrate layer 32 and a coating layer 34. _ The material used for the substrate layer 32 may be polycarbonate (P) or polycarbonate (Poly ethylene terephthalate; PET). The coating layer 34 may be made of a material such as p馨ly methyi meth aciyiate (pmma), silicone, or epoxy. Wherein, the thickness of the light-guiding meal 30 is between the surface of the 〇·〇5 surface to the 1st surface, and after the embossed dot pattern '3402 yuan is formed, it can be rolled over a second roller ^^^丨ier) 52 on. - Please refer to Figure 3, which is a schematic diagram of the authoring manufacturing apparatus 40. The manufacturing apparatus 40 further includes a first roller frame 42, a coating device 43, a roller 44, and a second roller frame 45. The substrate layer 32 is originally wrapped around a first roller 50. The first roller frame 42 holds the first roller 50 that positions the substrate layer 32. 8 M333649 The substrate layer 32 which is wound up on the gold is 0 is towed, and the coating is applied to the substrate layer 43 to apply the coating layer 34 to the base layer to form the light guide. Membrane 30. (3) The table and coating method can be used without being used for slot die, scraper, (comma) 'roller tape (r〇Her (7)) or spray (printing, etc.) The original material of the coating layer 34 may be mixed with a photoinitiator so that after coating, it is irradiated with ultraviolet rays to be hardened into the coating layer 34, -
塗覆層34後魏可進—步以熱硬絲獅成型。 滾輪44上具有至少一輪模4402，經過塗覆裝置43之導 光膜30後續再被拖夷以貼附於滾輪44之表面，、塗覆層34、 文輪模4402之貼壓以形成至少一微圖案（圖中之複數個網點 圖案3402)。其中，滾輪44之材質可以是不鏽鋼、銅、或是 鋁等材料。製造滾輪44上輪模4402的工法，係可利用超= 密雕刻、雷射加工、蝕刻、或是電鑄等工法來完成。 第二滾軸架45係挾持定位一第二滚軸52，於滾輪私形 成該微圖案之導光膜30，後續被拖矣以捲覆於第二滾軸兕 上0 製造設備40進一步包含一裁切裝置46，係於第二滾軸 52上之導光膜30再拖良出來後，可利用裁切裝置46裁切成 型如圖四之導光板60，並且也可於導光板6〇中裁切至少— 光源孔62。 此外，製造設備40還可包含一第一定位輪組47以及_ 第二定位輪組48。第一定位輪組47係設置於第一滾軸架42 與滾輪44之間’弟一疋位輪組48係設置於滾輪44與第二滾 9 M3 3 3 649 軸架45之間，分別用以定位、拖曳、以及張力控制製程中的 導光膜30 〇 μ進-步參閱圖五，導光膜3G之厚度係於Q. Q5_至lmm ^範圍間，制是針對〇·1_至〇』_之範圍間，既易於捲 復又肖b配ΰ現有主流的LED光源元件64，於筆記型電腦中 更具有理想的機械強度以及光學特性。一⑽光源元件64 後續係安裝於光源孔62中，LED光源元件64之粒徑係於 〇.2mm至〇· 8mm之範目間。因此，此導細3()所切成導光板 6〇之f度恰適用於此種微小的LED光源元件64，不僅導光膜 有著適切的薄度’並且有具有足夠的機械強度以及便於生 產線中安裝進入鍵盤中。 乂双义埏i％疋範圍導光膜3〇厚度的重要性，受 =於空間限制’導光膜30希望薄。但由於鍵盤中導光膜3〇 於鍵柱與電路基板上壓_關之間，經常受職應力After coating layer 34, Wei Kejin steps into a hot hard lion. The roller 44 has at least one wheel mold 4402. The light guiding film 30 passing through the coating device 43 is subsequently dragged to be attached to the surface of the roller 44, and the coating layer 34 and the document wheel mold 4402 are pressed to form at least one. Micropattern (plurality of dot patterns 3402 in the figure). The material of the roller 44 may be stainless steel, copper, or aluminum. The method of manufacturing the wheel mold 4402 on the roller 44 can be accomplished by means of ultra-deep engraving, laser processing, etching, or electroforming. The second roller frame 45 is configured to hold a second roller 52, and the light guide film 30 of the micro pattern is formed on the roller, and is subsequently dragged to be wound on the second roller. The manufacturing device 40 further includes a The cutting device 46, after the light guiding film 30 is attached to the second roller 52, can be cut and formed by the cutting device 46, and can also be formed on the light guide plate 60 as shown in FIG. Medium cut at least - light source aperture 62. In addition, manufacturing apparatus 40 may also include a first set of positioning wheels 47 and a second set of positioning wheels 48. The first positioning wheel set 47 is disposed between the first roller frame 42 and the roller 44. The first wheel set 48 is disposed between the roller 44 and the second roller 9 M3 3 3 649. The light guiding film 30 in the positioning, dragging, and tension control process is further referred to in Figure 5. The thickness of the light guiding film 3G is in the range of Q. Q5_ to lmm ^, and the system is for 〇·1_to 〇 Between the scope of the __, it is easy to reproduce and the existing mainstream LED light source components 64, and has better mechanical strength and optical characteristics in the notebook computer. A (10) light source element 64 is subsequently mounted in the light source aperture 62. The particle size of the LED source element 64 is between 〇.2 mm and 〇·8 mm. Therefore, the thinness of the guide 3() cut into the light guide plate 6 is suitable for such a minute LED light source element 64, not only the light guide film has a suitable thinness' but also has sufficient mechanical strength and is convenient for the production line. Installed into the keyboard. The importance of the thickness of the light-guiding film 3〇 is limited by the space limitation. However, because the light guide film 3 in the keyboard is between the key column and the circuit board, the stress is often applied.
而考1耐疲勞，太_導細30會被長期壓觸 對岸ίΐ:務’影響到導光特性。並且，太薄的導光膜30 疲勞性1 _ 配合财LED光源耕64顆粒大小、耐 不宜；^1機械強度·..等，導光膜3G不宜太薄也 備，而特別產生出==二尽度、以及特選之製程與設 所逃之微圖案係為網點圖案34 =按鍵係具有複_點_=〇，為鄰= 先源轉64之網點圖案_中網點較為豨疏，且網= 10 M333649 / 粒杈小，反之，遠離led光源元件64之網點圖案3402中網 點之禮度較大，且網點之顆粒可較大。如此，可使射出鍵盤 的光線強度相若，而後續可成品為理想的發光鍵盤。 請參閱圖六，圖六係本創作導光膜3〇製造方法之流程 … 圖。本創作也係一種用以製造導光膜30之製造方法，導光膜 30係包含一基材層32以及一塗覆層34,基材層32原本係捲 覆於一第一滾軸(r〇ller)5〇上。該製造方法係包含下列步 驟： 馨 步驟S02 ·拖曳出第一滾軸50上所捲覆的基材層32。 步驟SG4 ··塗佈塗覆層34於基材層32表面以初步形成 導光膜30。 - 步驟S06 :壓印塗覆層34以形成至少一微圖案c網點圖 - 案 3402)。 步驟S08 ··拖曳形成該微圖案後之導光膜3〇，捲覆於第 二滾軸52上，其中導光膜3〇之厚度係於〇· 〇5_至丨腿之範 φ 圍間。 步驟S10 :於第二滾軸52上之導光膜30再被拖矣出來 , 後，裁切導光膜30以成型適用於鍵盤大小之導光板6〇。進 一步，更於導光板60中裁切至少一光源孔62，使LED光源 元件64後續可安裝於光源孔62中，LED光源元件64之粒徑 係於0· 2mm至0· 8mm之範圍間，配合於此，再考量聚碳酸酯 可捲覆的限制特性，導光膜30之厚度特別需於〇.lnim至 0· 5mm之範圍間。 因此，藉由本創作的導光膜30，配合特定的製造設備40 M333649 ;==;，利用特定基材層32以及塗覆層麵料， ，厚度範圍之導光膜3G，兼具理想的機械強度以 寸性’以適用於如筆記型電腦之攜帶式電子f置中鍵 7-tllT'0。並且利用滾軸架挾持滾軸的設計，使成 “的基材層3hx及成雜的導光膜3 上，而便於運送以及儲藏。 TH袞軸 、求太佳具體實施例之詳述，係希望能更加清楚描 X〗來針太與精神’而並非以上述所揭露的較佳具體實 ==作之範私以限制。相反地，其目的是希望能 二=爾等性的安排於本創作所峨 【圖式簡單說明】 圖一係f知技術導光板製造設備之示意圖； 圖-A係本創作所製成導光膜之剖面示意圖； 圖二B係圖二A中導光膜之局部放大示意圖； 圖三係本創作製造設備之示意圖； 圖四係本創作導光板之外觀示意圖； 圖五係本創作導光板之侧剖示意圖；以及 圖六係本_導光職造方法之流程圖。 微圖案402 【主要元件符號說明】 輸送帶6 M3 3 3 649And test 1 is fatigue-resistant, too _ guide thin 30 will be pressed for a long time on the opposite side. Moreover, the too thin light guiding film 30 fatigue 1 _ with the LED light source ploughing 64 particle size, resistance is not suitable; ^ 1 mechanical strength ·.., etc., the light guide film 3G should not be too thin, but especially produced == The second degree, and the selected process and the escaped micro-pattern are the dot pattern 34 = the button system has a complex _ point _= 〇, and the adjacent dot = the source-to-64 dot pattern _ the middle dot is relatively sparse, and the net = 10 M333649 / The particle size is small. Conversely, the dot in the dot pattern 3402 away from the LED light source element 64 is larger, and the particles of the dot can be larger. In this way, the intensity of the light emitted from the keyboard can be made similar, and the subsequent finished product is an ideal illuminated keyboard. Please refer to Figure 6 and Figure 6 is the flow chart of the manufacturing method of the light guide film of the present invention. The present invention is also a manufacturing method for manufacturing the light guiding film 30. The light guiding film 30 includes a substrate layer 32 and a coating layer 34. The substrate layer 32 is originally wrapped around a first roller (r 〇ller) 5 〇. The manufacturing method comprises the following steps: Xin Step S02 - Tow the substrate layer 32 wound on the first roller 50. Step SG4: Coating the coating layer 34 on the surface of the base material layer 32 to initially form the light guiding film 30. - Step S06: Embossing the coating layer 34 to form at least one micropattern c dot pattern - Case 3402). Step S08 · Dragging the light guiding film 3 形成 which forms the micro pattern, and winding it on the second roller 52, wherein the thickness of the light guiding film 3 系 is between 〇· 〇5_ to the range of the φ leg . Step S10: The light guiding film 30 on the second roller 52 is further dragged out, and then the light guiding film 30 is cut to form a light guide plate 6适用 suitable for the keyboard. Further, at least one light source hole 62 is cut in the light guide plate 60, so that the LED light source element 64 can be subsequently mounted in the light source hole 62, and the particle diameter of the LED light source element 64 is between 0·2 mm and 0.8 mm. In conjunction with this, the limiting properties of the polycarbonate roll-up can be considered. The thickness of the light-guiding film 30 is particularly required to be in the range of 〇.lnim to 0. 5 mm. Therefore, the light guiding film 30 of the present invention is combined with a specific manufacturing equipment 40 M333649; ==;, using a specific substrate layer 32 and a coating layer fabric, the thickness of the light guiding film 3G, and the desired mechanical strength In order to fit the portable electronic f-key 7-tllT'0 for a notebook computer. Moreover, the roller frame is held by the roller frame to make the base material layer 3hx and the mixed light guiding film 3, which is convenient for transportation and storage. TH衮 axis, the details of the specific embodiment of the system are I hope that I can more clearly describe the X and the spirit and not the spirit of the above. It is not limited to the specific embodiment of the above-mentioned disclosure. On the contrary, the purpose is to hope that the arrangement of the two is equivalent to this. Creativity 峨 [Simple diagram of the diagram] Figure 1 is a schematic diagram of the manufacturing equipment of the light-guiding plate; Figure-A is a schematic cross-sectional view of the light-guiding film made by the creation; Figure 2B is the light-guide film of Figure IIA FIG. 3 is a schematic view of the manufacturing device of the present invention; FIG. 4 is a schematic view showing the appearance of the light guide plate of the present invention; FIG. 5 is a side cross-sectional view of the light guide plate of the present invention; and FIG. 6 is a flow chart of the method for manufacturing the light guide. Fig. Micropattern 402 [Key component symbol description] Conveyor belt 6 M3 3 3 649
導光膜30 塗覆層34 製造設備2、40 第一滾軸50 滚輪8、44 第二滚軸架45 裁切裝置46 光源孔62 第二定位輪組48 基材層32 網點圖案3402 第一滚軸架42 塗覆裝置43 輪模4402 第二滾軸52 導光板4、60 第一定位輪組47 LED光源元件64Light guide film 30 Coating layer 34 Manufacturing equipment 2, 40 First roller 50 Roller 8, 44 Second roller frame 45 Cutting device 46 Light source hole 62 Second positioning wheel set 48 Base material layer 32 Dot pattern 3402 First Roller frame 42 Coating device 43 Wheel mold 4402 Second roller 52 Light guide plate 4, 60 First positioning wheel set 47 LED light source element 64
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