200823541 九、發明說明： 【發明所屬之技術領域】 本發明係關於高散射性超薄導光板及其製造方 法，尤指一種應用在液晶顯示、筆記電腦、PDA、手機、 光電材料等具有高散射性光學穿透需求領域之高分子 材料製備之創新。 【先前技術】 LCD (液晶顯示器）之背光模組是由光源（Light source)、導光板(Light guide plate)、擴散膜piffuser)、 菱鏡片（Prism sheet)、反射板(reflect〇r)等構成，藉由導 光板的微結構來將點（或線）光源轉換成面光源，達成高 亮度均勻光源的提供，並且引導光的散射方向，來提高 光的利用率，並確保面板亮度的均勻性，因此導光板的 設計與製造對背光板影響甚鉅，為背光模組最主要的技 術與成本所在。 導光板依製程原理，可分為印刷式及非印刷式。 印刷式導光板利用射出成型，將光學級壓克力壓製成表 面光滑板塊，再以具有高反射且不吸光的（如二氧化 石夕、二氧化鈦）印刷材料，在導光板底面用網板印刷適 §地印上圓形或方形的擴散點，藉由印刷材料對光源吸 收再擴散的性質，破壞全反射效應造成的内部傳播，使 光由正面射出並均勻分佈於發光區，利用這種疏密、大 200823541 小不一的擴散點，可使得導光板均勻發光。 非印刷式導光板利用精密模具，在導光板射出成 型之際，直接形成密布的微小凸點，其作用有如網點（調 整光學的均勻性），可謂一體成型，不用後續印刷加工。 非印刷式有蝕刻（Etching)、電鑄與精密加工三種方式形 成網點。非印刷式的技術難度較高，但在亮度上表現優 ⑩ 異，模具開發技術為瓶頸所在；而V_CUT導光板可透 過表面V溝兩侧的反射鏡面對非正面方向來光形成全 反射作用，使光的正面利用效率更高，但是v_cut導 光板設計上，因中心點輝度拉的太高，不易取得完美之 均勻度，故於光學設計上仍有困難之處。另外有一種作 法是採用散射型高穿透樹脂來製作導光板，此種導光板 底广卩不用设计光學網點，利用材料本身的特性，即可得 • 到高均勻性的出光，但是因為無法以高斯配光來拉高中 心點輝度，使得採用者不多。 通苇小尺寸的導光板均採用射出成型手段，其中 凸點或凹點的形成是以射出成型模具上之顧刻（Etching) 或電鑄與精密加工(V-CUT)的方式來產生凹點。近來， 因受到手提電腦(Notebook)輕薄化影響，要求導光板1 厚度不斷下降，尤其制發光二極體aED)M_; 更形明顯，躲導光板之印刷式 '非印刷式製程比較: 6 200823541 利則者印刷後在烘烤的技術困難度 超高逮射出成型機與專用模具投資成本二= 板太薄，财鮮設計Μ過長等缺點 有鐘於此，本發明者乃針對_f 及其製程缺點深人研究，提供―郎、彳、、、D構 及其製造料，實料要。均‘_料光板200823541 IX. Description of the Invention: [Technical Field] The present invention relates to a highly scattering ultra-thin light guide plate and a method of manufacturing the same, and more particularly to an application of high scattering in liquid crystal displays, notebook computers, PDAs, mobile phones, photovoltaic materials, and the like. Innovation in the preparation of polymeric materials in the field of optical penetration. [Prior Art] The backlight module of an LCD (Liquid Crystal Display) is composed of a light source, a light guide plate, a diffusion film piffuser, a prism sheet, a reflector, and the like. By converting the point (or line) light source into a surface light source by the microstructure of the light guide plate, the provision of a high-brightness uniform light source is achieved, and the scattering direction of the light is guided to improve the utilization of light and ensure the uniformity of the brightness of the panel. Therefore, the design and manufacture of the light guide plate has a great influence on the backlight board, and is the main technology and cost of the backlight module. According to the principle of process, the light guide plate can be divided into printed and non-printed. The printed light guide plate uses injection molding to compress the optical grade acrylic into a smooth surface plate, and then prints the material with high reflection and no light absorption (such as silica dioxide, titanium dioxide), and screen printing on the bottom surface of the light guide plate. § Place a circular or square diffusion point, absorb the re-diffusion property of the light source by the printing material, destroy the internal propagation caused by the total reflection effect, and make the light emitted from the front side and evenly distributed in the light-emitting area. The large diffusion point of 200823541 can make the light guide plate evenly emit light. The non-printing light guide plate uses a precision mold to directly form dense micro-bumps when the light guide plate is molded, and its function is such as a dot (adjustment of optical uniformity), which can be described as one-piece molding without subsequent printing. Non-printing has three ways of etching (Etching), electroforming and precision machining to form dots. The non-printing technology is more difficult, but the brightness is excellent, and the mold development technology is the bottleneck. The V_CUT light guide plate can penetrate the non-frontal direction through the mirrors on both sides of the surface V groove to form a total reflection. The front side of the light is more efficient, but the design of the v_cut light guide plate is too high for the center point, so it is difficult to achieve perfect uniformity, so there are still difficulties in optical design. Another method is to use a scattering type high penetration resin to make a light guide plate. The light guide plate has a wide bottom without designing an optical dot, and the material itself can be used to obtain a high uniformity of light, but because Gaussian light distribution to pull up the center point brightness, so that there are not many adopters. The small-sized light guide plate adopts injection molding means, wherein the formation of bumps or pits is generated by means of Etching or electroforming and precision machining (V-CUT) on the injection molding die. . Recently, due to the thinness and lightness of the notebook, the thickness of the light guide plate 1 is required to be continuously reduced, especially the light-emitting diode aED) M_; more obvious, the printed type of the non-printing process of the light guide plate is compared: 6 200823541 After the printing, the technical difficulty in baking is extremely high, and the investment cost of the molding machine and the special mold is two. The board is too thin, and the wealth design is too long. The inventor is aiming at _f and The shortcomings of the process are deeply studied, and the materials of Lang, 彳, 、, D and their materials are provided. Both __ light board
【發明内容】 本^明之主要目的，在於提供—種高散射性超薄 产=:衣造方法，係利用散射型高穿透樹脂來克服均勾 又牛具有V""CUT之⑤輝度優點，並得以進 r步細短光學料時間；加上翻成型材料妹昇產能 亚降低成本。 種藉由上述方法 本發明之次一目的，在於提供— 所製造之高散射性超薄導光板。 本發明所提供之高散射性超薄導光板，其包含— 光入射面、-底面以及由數出光凸起相鄰排列出之數光 溝面。 導光板製造方法， 本發明所提供之高散射性超薄 包含以下步驟：具備-本體；該本體下方為底面；以滚 輪塗抹透明材料於該本體上方固化成型為㈣排^ 數出光凸起；以及依需求將本體裁切成適t尺寸即為導 光板。並可依需求於底面固化成型出與本體上方之數光 7 200823541 溝面方向呈現垂直之數反射溝面。 相較於習知技術，本發明之高散射性超薄導光板之 成品具有超薄特色，特別符合LED筆記型液晶顯示器 對於薄形化設計之需求，利用聚曱基丙烯酸曱醋 (PMMA)以滾輪塗佈於由散射型高穿透樹脂所製成之板 片上固化成型，適合自動化一貫作業之生產，並可降低 產製成本及提昇產品良率而強化競爭力。 【貫施方式】 首先，關於圖式部分，必須將第一圖至第三圖綜 合參閱、比較後，始能充分明瞭本發明，合先敘明。 請參閱第一圖可知，本發明係運用一由散射型高 穿透樹脂所成型之本體1〇為基底，該本體1〇一側為光 入射面11 ’下方為一底面12，其中該本體1〇係由押出 機70之擠出口 71流出之高穿透樹脂（如第二圖參照）， 予以製成板片狀，利用滾輪40上的輪齒41間形成之齒 溝42(V溝）能填载聚曱基丙烯酸曱酯（pmMA)樹脂，於 該滾輪40轉動至押出機8〇之擠出口 81時，該齒溝42(v 溝）會填滿聚曱基丙烯酸甲酯（PM]V[A)，令滚輪40溫度 維持在略尚於聚甲基丙烯酸曱酯（PMMA)之軟化溫度， 俟滾輪40繼續轉動至光源燈50(或高周波加熱裝置) 時’該光源燈50會照射齒溝42(v溝）内之聚曱基丙烯 酸甲醋（PMMA)令其稍微融熔，一旦滾輪4〇再續轉至本 200823541 體10上’前述齒溝42(V溝）中之稍微融熔聚甲基丙烯 酸曱酯（PMMA)會黏覆於該本體1〇上，以冷卻噴氣裝置 90強制快速降溫後’本體1 〇上之聚甲基丙烯酸曱酯 (PMMA)隨即會固化成型為三角形狀之出光凸起2〇，於 任一組相鄰之出光凸起20間則亦為一 V形狀之光溝面 21，如此可製得具有超薄特色之高散射性超薄導光板， 屆時依據需求將該導光板裁切成適當尺寸，適合自動化 一貫作業。. 次者，請同時參閱第一圖及第二圖可知，為了達 成本體10上方、下方底面波浪狀排列為呈現九十度交 錯（如第三圖所示成品上、下方波浪狀來反推思考），致 使本體10下方底面12所對應之滾輪40，與上方滾輪 40相較’兩者於滚輪40表面造型設計必然為不同設 計’加上要求自動化一貫作業，本體10上、下滚輪4〇 旁同時設有冷卻喷氣裝置90以提供製程上能夠快速降 溫’圖中該下方滾輪40最外圍為實線A，實線A内另 為虛線B，實線A與虛線B所形成之區域，能夠因滚 輪4〇轉動而盛滿由押出機60之擠出口 61流出之聚曱 基丙烯酸甲酯（PMMA)，並經光源燈50照射，該滾輪 40轉動、觸及於本體10下方之底面12時，順勢將該 略呈融熔之聚曱基丙烯酸甲酯（PMMA)黏附於本體1〇 200823541 底面12上，隨後會固化成型為反射凸點3〇，於任一相 鄰反射凸點30之間則固化成型為一倒V形反射溝面 31(如第三圖參照）。SUMMARY OF THE INVENTION The main purpose of the present invention is to provide a high-scattering ultra-thin production =: a clothing manufacturing method, which utilizes a scattering type high-penetration resin to overcome the advantages of the five-degree brightness of the V"CUT. And can get into the short step of the optical material time; plus the tumbling material to increase the production capacity to reduce costs. The above object of the present invention is to provide a highly scattering ultra-thin light guide plate manufactured by the present invention. The highly scattering ultra-thin light guide plate provided by the present invention comprises a light incident surface, a bottom surface, and a plurality of light groove surfaces arranged adjacent to each other by the plurality of light projections. The method for manufacturing a light guide plate, the high scattering ultra-thin provided by the present invention comprises the steps of: providing a body; the bottom of the body is a bottom surface; and the transparent material is applied to the body by a roller to be solidified on the body to form (4) rows of light protrusions; The light guide plate is cut into a suitable t size according to requirements. The surface can be solidified on the bottom surface as required. 7 200823541 The direction of the groove surface is perpendicular to the number of reflective grooves. Compared with the prior art, the high-scattering ultra-thin light guide plate of the present invention has ultra-thin characteristics, and particularly meets the requirement of the thin-film design of the LED notebook liquid crystal display, and utilizes polyacrylic acid vinegar (PMMA) to The roller is applied to a sheet made of a scattering type high-penetration resin, which is suitable for the production of automated operations, and can reduce the cost of production and improve the yield of the product to enhance competitiveness. [Comprehensive method] First of all, regarding the drawing part, it is necessary to fully refer to and compare the first to third figures, and the present invention can be fully understood. Referring to the first figure, the present invention utilizes a body 1 成型 formed by a scattering type high-penetration resin as a substrate, and a side of the body 1 为 is a bottom surface 12 below the light incident surface 11 ′, wherein the body 1 The lanthanum is a high-penetration resin which is discharged from the extrusion port 71 of the extruder 70 (refer to the second drawing), and is formed into a sheet shape, and the groove 42 (V groove) formed between the teeth 41 on the roller 40 can be used. The poly(mercapto methacrylate) resin is filled, and when the roller 40 is rotated to the extrusion port 81 of the extruder 8 , the groove 42 (v groove) is filled with polymethyl methacrylate (PM)V. [A), the temperature of the roller 40 is maintained at a softening temperature slightly higher than that of the polymethyl methacrylate (PMMA), and when the roller 40 continues to rotate to the light source lamp 50 (or a high-frequency heating device), the light source lamp 50 illuminates the teeth. Polyacrylic acid methyl vinegar (PMMA) in the groove 42 (v groove) causes it to melt slightly, once the roller 4 turns to the slightly melted in the aforementioned tooth groove 42 (V groove) on the body of the 200823541 body 10 Poly(methyl methacrylate) (PMMA) will adhere to the body 1〇 to cool the jet device 90 to force rapid cooling after the body 1 Polyurethane methacrylate (PMMA) will be solidified into a triangular shaped light-emitting protrusion 2〇, and a V-shaped groove surface 21 between any adjacent light-emitting protrusions 20 In this way, a highly scattering ultra-thin light guide plate with ultra-thin characteristics can be obtained, and the light guide plate can be cut into an appropriate size according to requirements, which is suitable for automatic operation. For the second time, please refer to the first figure and the second figure at the same time. In order to achieve the wavy arrangement of the upper and lower bottom surfaces of the body 10, the nine-degree interlacing is presented (as shown in the third figure, the upper and lower wavy shapes are reversed. The roller 40 corresponding to the bottom surface 12 of the lower portion of the body 10 is compared with the upper roller 40. The design of the surface of the roller 40 is different for the design of the roller 40, and the automatic operation is required. The upper and lower rollers of the body 10 are adjacent to each other. At the same time, a cooling jet device 90 is provided to provide rapid cooling in the process. The outermost circumference of the lower roller 40 in the figure is a solid line A, and the solid line A is also a dotted line B, and the area formed by the solid line A and the broken line B can be The roller 4 turns to fill the polymethyl methacrylate (PMMA) flowing out of the extrusion port 61 of the extruder 60, and is irradiated by the light source lamp 50. When the roller 40 rotates and touches the bottom surface 12 below the body 10, the homeopath The slightly melted polymethyl methacrylate (PMMA) is adhered to the bottom surface 12 of the body 1〇200823541, and then solidified into a reflective bump 3〇, which is cured between any adjacent reflective bumps 30. Formed as a inverted V Reflecting the groove surface 31 (refer to FIG as in the third).
因此，請參閱第三圖可知，因為光入射面n與本 體10底面12結構成垂直，並與與本體1〇表面結構成 平行’故而，利用該反射溝面31與本體1〇，二者不同 之反射率，可以破壞光線的全反射作用，將光線有效地 反射至出光凸起20，致使光損耗降低、光射均勻，並 提高輝度。 最後，論及本發明之實施案例，簡述如下：將粒徑 〇.5_5/Zm的聚倍半矽氧烷(P〇lysilSeSqui〇xane)或其他 高光學折射率材料聚合物粒子與光學級聚曱基丙烯酸 曱酯（PMMA)， 出薄板成型機， 【圖式簡單說明】 、乂 疋比例混合，利用雙螺桿混練擠 製成所需之散射型高穿透樹脂薄板。 u㈣料性超薄導光板及其製造方; 滾輪塗佈及固化成型 出先凸起之製程示意圖。 :::係發明同步於本體上方、下方底面以滾彳 化成型之製程示意圖。 第三圖係依攄篦二w ^ 視圖。 回衣程所得製品之立體圖及其^ 【主要元件符號說明】 10 200823541 ίο本體 11光入射面 12底面 20出光凸起 21光溝面 30反射凸點 31反射溝面 40滾輪 41輪齒 42齒溝 A實線 B虛線 50光源燈 60押出機 61擠出口 70押出機 71擠出口 80押出機 81擠出口 90冷卻噴氣裝置Therefore, referring to the third figure, since the light incident surface n is perpendicular to the bottom surface 12 of the body 10 and parallel to the surface structure of the body 1 , the reflection groove surface 31 and the body 1 are different. The reflectivity can destroy the total reflection of light, and effectively reflect the light to the light-emitting protrusion 20, resulting in reduced light loss, uniform light emission, and improved brightness. Finally, the embodiment of the present invention is briefly described as follows: a polypyridoxane (P〇lysilSeSqui〇xane) or other high optical refractive index polymer particles having a particle size of 55_5/Zm is optically aggregated. Mercapto methacrylate (PMMA), a thin sheet forming machine, [simple description of the drawing], 乂疋 ratio mixing, using twin-screw mixing to form the desired scattering type high penetration resin sheet. u (four) material ultra-thin light guide plate and its manufacturer; roller coating and solidification molding process diagram of the first protrusion. ::: is a schematic diagram of a process for synchronizing the upper and lower bottom surfaces of the body to form a roll. The third picture is based on the two w ^ view. 3D view of the product obtained from the returning process and its [Major component symbol description] 10 200823541 ίο Body 11 light incident surface 12 bottom surface 20 light-emitting projection 21 light groove surface 30 reflection bump 31 reflection groove surface 40 roller 41 gear tooth 42 groove A solid line B dotted line 50 light source lamp 60 extruder 61 extrusion port 70 extruder 71 extrusion port 80 extruder 81 extrusion port 90 cooling jet device