M351374 八、新型說明： 【新型所屬之技術領域】 本創作係一種背光源組之光學膜片及其製造裝置，尤 指一種可增加單位面積上結構分佈比例而達到增光效益 之具集光及擴散複合功能型光學膜片及其製造裝置。 .【先前技術】 Φ 按，針對多媒體社會之急迷進步，多半受惠於半導 體元件或人機顯示裝置的飛躍性進步，就顯示器而言，陰 極射線管（Cathode Ray Tube，簡稱CRT)因具有倀s的 示品質與其經濟性，一直獨占近年來的顯示器市場Y然 而，對於個人在桌上操作多數終端機/顯示器裝置的環 境，或是以環保的觀點切入，若以節省能源的潮流加以預 測，陰極射線管因空間利用以及能源消耗上仍存在很多問 題，而對於輕、薄、短、小以及低消耗功率的需求，無法 有效提供解決之。因此，具有高晝質、空間利用率佳、低 攀消耗功率、無輻射等優越性之液晶顯示器以逐 媼 之主流，值得注意的是，由於液晶顯示器中的液晶面板本 身並不會發光’故必須藉由背光模組提供液晶面板所需之 面光源，使得液晶面板達到顯示的效果，同時獲得足夠之 亮度與對比。 而一般背光模組主要包含有光源以及複數光學膜 片，光源得以通過各光學膜片得到較辱均勻且亮度較高之 光線後，再由液晶面板射出；其中，為節省光學膜片之使 5 M351374 用及降低背光模組之厚度，出現有一具增光及擴散功能之 光學膜片，如台灣發明專利公開號第200720711號，專利 名稱「用於背光單元之光擴散片及其製造」，如第一圖所 示，該光擴散片1設有一透明基板11，該透明基板11上 有複數隨機不規則分佈之半球狀結構12,其半球狀結構 12在一固定範圍内所分佈的比例約50%〜90%;惟，各半球 狀結構分佈比例極限是90°/。，無法更有效提升整體的光學 輝度，且該半球狀結構所形成之凸面弧狀表面，因弧狀曲 鲁率過大而無法有提升光學輝度的效果。 另外，該光擴散片1之製造方法如第二圖所示，係 先提供有一圖案化之成型輪21 ’該成型輪21上係設有複 數隨機不規則分佈之弧狀凹槽（圖中未標示），於該成型輪 21上塗佈光固化樹脂22’再將透明基板π置於該光固化 樹脂22上利用壓輪23加壓方式同時使用uv燈24，使該 光固化樹脂22同時固化成型，以使該光固化樹脂22形成 與該成型輪21上弧狀凹槽相對應之半球狀結構（圖中標 #示），惟，該光固化樹脂於塗佈時，往往會產生氣泡，若 氣泡沒有消除會影響成型之光擴散片之光學輝度，且若該 '光固化樹脂流動性不佳時，無法填充於較精細之孤狀凹槽 中，使得半球狀結構在-固定範圍内所分佈的比例約 50%〜90%，無法突破9〇%之技術瓶頸。 【新型内容】 本1丨作其主要目的係為提供—種可增加單位面積 6 M351374 上結構分佈比例而達到掩 能型光學膜片及其製造裝 =效益之具集光及擴散複合功 為達上述目的，本創作之光 基材表面係設有複數亂數分佈? δ>ι 出趙分佈比例約9G，％，藉^凸出體’且各弧狀凸 進行固定角度的散射，_弧狀凸出體使光線 光棋級光學膜片的使用數量'ί增光的效益，可減少傳統背 【實施方式】 為了讓本創作之上述之 更明確被瞭解，下文將本_目的、功能特徵、和優點能 圖式，作_㈣如下： 較佳之實例，並配合所附 至少^有作中光學膜片之製造裝置3,如第三圖所示，其 第一供料輪31，該第一^ 並可進行供料，該基材第41=料㈣係捲設有基材4卜 (阶)、三乙酸纖維素二了以為聚料二甲酸乙二醋 聚内二醋、聚醯亞胺、茶甲酸乙二醋(ΡΕ:)、 聚内歸或聚乙烯醇之高分子聚合物材質； 处播，一供料輪32’該第二供料輪32係捲設有超精細微 、、、Q樽模具51，並可進行供料； 供粗Γ體提供裝置33’該膠體提供裝置33係設於該第一 ς’、- 31之後，係於基# 41表面設置膠體42，其黏度 乂為50CP〜25〇cp’而該膠體42具有15〇~17〇的光折 M351374 夺寸係數，該膠體提供裝置33後進一步設有刮輪331(如第 田圖所示），該刮輪331係將基材41表面上多餘的膠體 42刮除，以控制膠體42的厚度在35//m〜4〇Am，之後再 鏺由一滾輪332將膠體42均勻分佈於基材41表面。 烘烤裝置34,該烘烤裝置34係設於該膠體提供裝置 33之後，用以對該基材41及膠體42進行烘烤，而該烘 烤步驟之烘烤溫度可以為20°C〜80°C ; 翻模裝置35，係設於烘烤裝置34以及第二供料輪 32之後，用以接收基材41以及超精細微結構模具51妓 進行轉印翻模，該超精細微結構模具51 —側表面係設有 複數凹弧結構52(如第五圖所示），而該翻模裝置35係設 有一鏡面輪351以及壓輪352，該鏡面輪351之加工條件 為真圓度±10，真直度±5/zm，而該鏡面輪351之輪面 表面粗糙度係為Ο.ίβιη以下，該超精細微結構模具51 係由第二供料輪32輸送至鏡面輪351，且令各凹弧結構 52朝外侧方向，而該基材41則以一角度0輸送方向進入 鏡面輪35卜如第五圖所示該角度0係為鏡面輪351靠近 基材41處之弧線7與與基材41間形成之夾角，該角度0 可以為10度〜60度，而較佳者為30度〜60度，該鏡面輪 351並與壓輪352間形成一間隙以供基材41以及超精細 微結構模具51通過，並同時進行轉印翻膜，使該膠體42 表面形成與該超精細微結構模具51相對應之弧狀凸出體 43 ； 固化成型裝置36,該固化成型裝置36設於該翻模裝 M351374 置35之後，該固化成型装置36可以為光熱固化裝置’對 形成有弧狀凸出體43之膠體42進行加熱固化，以形成光 學膜片之成品。 收捲裝置37,該收捲裝置37係設於該固化成型裝置 36之後，用以將光學膜片之成品以及超精細微結構模具 分別收捲，該收捲裝置37係設有第一、第二收捲輪371、 372，以將光學膜片4之成品以及超精細微結構模具51 分別收捲，而該第一、第二收捲輪371、372之收捲速度 籲為 5m/min~l〇 m /min。 藉由本創作之製造裝置所製造之光學膜片，如第六 圖所示，係設有一基材41，該基材41表面係設有複數亂 數分佈之弧狀凸出體43,且各弧狀凸出體43分佈比例約 90〜99%，其分佈比例較佳為90~92%，各弧狀凸出體43 係大小不一，其包含有複數大弧狀凸出體431以及小弧狀 凸出體432,如第七圖所示，該大弧狀凸出體431高度（H1) 為20//m~35^m，直徑（R1)為25/zm〜70//m，而該小弧狀 φ凸出體高度（H2)為10/zm〜20ym，直徑（R2)為10#m〜20 /zm，各大弧狀凸出體431以及小弧狀凸出體432可有效 提升固定範圍上單位面積分佈比例。 值得一提的是，本創作相較於習有係具有下列優點： 1、 該光學膜片可有效的提升固定範圍内的分佈比例 進而增加光學輝度值，且可同時具有集光及擴散複合功 能。 2、 本創作之烘烤裝置進行烘烤可使膠體流動性更M351374 VIII. New Description: [New Technology Field] This is a kind of optical film and its manufacturing device of backlight group, especially a kind of light collection and diffusion which can increase the proportion of structure distribution per unit area and achieve the benefit of light enhancement. Composite functional optical film and its manufacturing device. [Prior Art] Φ Press, for the advancement of the multimedia society, most of them benefit from the dramatic advancement of semiconductor components or human-machine display devices. For the display, the cathode ray tube (CRT) has伥s' quality and economy have always dominated the display market in recent years. However, for individuals who operate most terminal/display devices on the table, they can cut into the environment from the perspective of environmental protection. Cathode ray tubes still have many problems due to space utilization and energy consumption, but the requirements for light, thin, short, small and low power consumption cannot be effectively solved. Therefore, a liquid crystal display having high enamel quality, good space utilization ratio, low power consumption, no radiation, and the like is in the mainstream, and it is worth noting that the liquid crystal panel itself in the liquid crystal display does not emit light. The backlight unit is required to provide the surface light source required for the liquid crystal panel, so that the liquid crystal panel can achieve the display effect while obtaining sufficient brightness and contrast. The general backlight module mainly comprises a light source and a plurality of optical films, and the light source can obtain a relatively uniform and bright light through each optical film, and then is emitted by the liquid crystal panel; wherein, in order to save the optical film, 5 M351374 uses and reduces the thickness of the backlight module, and has an optical film with brightness enhancement and diffusion function, such as Taiwan Patent Publication No. 200720711, patent name "Light diffusion sheet for backlight unit and its manufacture", such as As shown in the figure, the light diffusing sheet 1 is provided with a transparent substrate 11 having a plurality of randomly irregularly distributed hemispherical structures 12, and the proportion of the hemispherical structures 12 distributed in a fixed range is about 50%. ~90%; however, the proportional limit of the distribution of each hemispherical structure is 90°/. The optical brightness of the whole can not be improved more effectively, and the convex curved surface formed by the hemispherical structure cannot have the effect of improving the optical brightness due to the excessive arc rate. In addition, as shown in the second figure, the manufacturing method of the light diffusing sheet 1 is first provided with a patterned forming wheel 21'. The forming wheel 21 is provided with a plurality of random irregularly distributed arc-shaped grooves (not shown in the figure). The photocurable resin 22' is coated on the molding wheel 21, and the transparent substrate π is placed on the photocurable resin 22, and the uv lamp 24 is simultaneously pressed by the pressing wheel 23 to cure the photocurable resin 22 at the same time. Forming, so that the photocurable resin 22 forms a hemispherical structure corresponding to the arcuate groove on the forming wheel 21 (shown in the figure), but the photocurable resin tends to generate bubbles when applied. The elimination of the bubbles will affect the optical brightness of the formed light diffusing sheet, and if the 'photocurable resin has poor fluidity, it cannot be filled in the finer orphan-like grooves, so that the hemispherical structure is distributed within the fixed range. The ratio is about 50% to 90%, and it is impossible to break through the technical bottleneck of 9〇%. [New content] The main purpose of this 丨 is to provide a kind of concentrating and diffusing composite work that can increase the proportion of structure distribution per unit area of 6 M351374 to reach the masking optical film and its manufacturing equipment. For the above purpose, the surface of the light substrate of the present invention is provided with a complex random number distribution? δ> ι The distribution ratio of the Zhao is about 9G, %, by the convex body 'and the arc convex is fixed angle scattering, _ arc The bulge makes the amount of light-optic optical film used. The benefit of lightening can reduce the traditional back. [In order to make the above-mentioned definition of this creation more clearly understood, the following _ purpose, functional features, and Advantages of the figure can be made as follows: a preferred example, and with the accompanying at least the manufacturing apparatus 3 for the optical film, as shown in the third figure, the first supply wheel 31, the first ^ The material can be supplied, and the substrate 41=material (4) is provided with a substrate 4 (step), cellulose triacetate, and a polyethylene diacetate polydiacetate, polyimine, High molecular polymer material of tea formic acid ethyl vinegar (ΡΕ:), polyene or polyvinyl alcohol At the same time, a second supply wheel 32 is provided with an ultra-fine micro, Q 樽 mold 51, and can be fed; a coarse body providing device 33' is provided by the colloid The device 33 is disposed after the first ς', -31, and is provided with a colloid 42 on the surface of the base #41, the viscosity 乂 is 50CP~25〇cp', and the colloid 42 has a folding of 15〇~17〇 M351374 The colloid providing device 33 is further provided with a scraping wheel 331 (as shown in the figure), which scrapes off the excess colloid 42 on the surface of the substrate 41 to control the thickness of the colloid 42 at 35. //m~4〇Am, and then the colloid 42 is evenly distributed on the surface of the substrate 41 by a roller 332. The baking device 34 is disposed after the colloid providing device 33 for baking the substrate 41 and the colloid 42 , and the baking temperature of the baking step may be 20 ° C to 80 The mold turning device 35 is disposed behind the baking device 34 and the second supply wheel 32 for receiving the substrate 41 and the ultra-fine microstructure mold 51 for transferring the mold, the ultra-fine microstructure mold 51. The side surface is provided with a plurality of concave arc structures 52 (as shown in FIG. 5), and the mold turning device 35 is provided with a mirror wheel 351 and a pressure roller 352. The processing condition of the mirror wheel 351 is true roundness± 10, the true straightness is ±5/zm, and the surface roughness of the surface of the mirror wheel 351 is Ο.ίβιη, the ultra-fine microstructured mold 51 is transported by the second supply wheel 32 to the mirror wheel 351, and Each concave arc structure 52 faces outward, and the substrate 41 enters the mirror wheel 35 at an angle 0 conveying direction. As shown in FIG. 5, the angle 0 is an arc 7 of the mirror wheel 351 near the substrate 41 and An angle formed between the substrates 41, the angle 0 may be 10 degrees to 60 degrees, and preferably 30 degrees to 60 degrees, the mirror wheel 351 And forming a gap with the pressure roller 352 for the substrate 41 and the ultra-fine microstructure mold 51 to pass through, and simultaneously transferring the film, so that the surface of the gel 42 forms an arc corresponding to the ultra-fine microstructure mold 51. The protrusion 43 is formed by a curing molding device 36. The curing device 36 is disposed after the mold M351374 is disposed. The curing device 36 can be a photothermal curing device 'for the colloid 42 formed with the arc-shaped protrusion 43. Heat curing to form a finished product of the optical film. a winding device 37 is disposed behind the curing and molding device 36 for winding the finished optical film and the ultra-fine microstructure mold, and the winding device 37 is provided with the first and the first The winding reels 371 and 372 are respectively wound to wind the finished product of the optical film 4 and the ultra-fine microstructured mold 51, and the winding speed of the first and second winding reels 371 and 372 is 5 m/min. L〇m /min. The optical film manufactured by the manufacturing device of the present invention, as shown in the sixth figure, is provided with a substrate 41 having a plurality of irregularly distributed arcuate projections 43 on the surface of the substrate 41, and each arc The distribution of the convex protrusions 43 is about 90 to 99%, and the distribution ratio thereof is preferably 90 to 92%. The arc-shaped convex bodies 43 are different in size, and include a plurality of large arc-shaped convex bodies 431 and small arcs. The convex body 432 has a height (H1) of 20//m to 35^m and a diameter (R1) of 25/zm to 70//m as shown in the seventh figure. The small arc-shaped φ protrusion height (H2) is 10/zm to 20ym, and the diameter (R2) is 10#m~20/zm, and each of the large arc-shaped protrusions 431 and the small arc-shaped protrusions 432 can be effective. Increase the distribution ratio per unit area on the fixed range. It is worth mentioning that this creation has the following advantages compared with Xiyou: 1. The optical film can effectively increase the distribution ratio in the fixed range and increase the optical luminance value, and can simultaneously have the light collecting and diffusion composite function. . 2, the baking device of the creation is baked to make the colloid fluidity more