201024821 六、發明說明： 【發明所屬之技術領域】 本發明是關於一種光學元件，特別是一種導光板。 【先前技術】 光源模組為液晶顯示器面板的關鍵零組件之一， 由於液晶本身不發光，光源模組之功能即在於供應充 足的亮度與分布均勻的光源，使其能正常顯示影像。 ❹ 一般而言，光源模組可分為前光式與背光式兩種，而 侧邊入光式背光模組則為背光式光源模組之一常見配 置結構，主要應用於小尺寸之液晶顯示器，如桌上型 電腦或筆記型電腦用的液晶顯示器。侧邊入光式背光 模組的主要構件為導光板及燈管，其中燈管是放置於導 光板的側方。目前，用於較大尺寸之液晶顯示器的侧 邊入光式背光模組’其導光板旁一般會配置多個燈源 以增強亮度，此燈源例如是冷陰極螢光燈管或LED燈》 鲁 目前，導光板的製作方式主要分為印刷式及非印 刷式。其中，印刷式是以網板印刷的方式將光學網點 印製在導光板的底面上。藉由導光板底面的光學網 點，可將燈源所發出的光線吸收並再擴散，而使光線 能夠在導光板内部傳遞。之後，光線再由導光板的正 面射出。然而，由於光學網點顆粒不夠精細，使得光 線分佈的均勻性不佳，而導致導光板所呈現的輝度及 均勻度均較差。而且，此製程並非一次成形，導致加 工費時’成本亦會相對地提高<> 201024821 為了改善印刷式之缺點，於是有非印刷式的製造 式提出。其是將多個微結構設計在模仁上，再將模 裝6X於模具中，並使用該模具進行射出成型以形成 底面具有光學微結構的導光板。其中，模仁的製作方 法例如有微加工技術與金屬蝕刻技術等。在射出成型 中，疋先把粒狀之塑膠材料均勻地加熱到熔融狀態， 以適當的射出速度和壓力將熔融狀態的塑料注入^穴 中，等待其成品冷卻固化後再進行開模、頂出，因而 得到與模穴相同形狀尺寸的導光板。其中，各種參數 的設定，例如：材料的性質、流動性與模具結構等， 會左右著導光板的品質。 然而，隨著各種電子產品，例如：手機與ΝΒ等， 逐漸走向輕薄的趨勢時，將使得導光板的厚度亦將變 得越薄，在以射出成型製成導光板的製程中將會出現 一些技術上的瓶頸。例如，熔融後的塑料流動性不足 以有效地將模穴填充完全，因而導致成型率下降，進 而造成導光板的光學效果無法彰顯。另外，塑料流動 性不足的問題也會導致平整度不佳與殘留應力的產 生。另外，目前導光板大部份皆是以ΡΜΜΑ為材料製 作出來的導光板，然ΡΜΜΑ易於吸收空氣中的水分， 進而導致導光板翹曲變形。 因此，如何使導光板的製作具有較高的成型率， 是值得本領域具有通常知識者去思量地。 【發明内容】 本發明之目的是提供一種導光板與導光板的製造方 201024821 法，此導光板的製造方法可提升導光板的成型率。 根據上述目的與其他目的，本發明提供一種導光 板，其底面具有多個第一微結構，且其入光面具有多個第二 微結構’其巾該第二微結構呈柱狀且延伸方向為縱向， 光板的特徵在於：其主要由硬化後的感光硬化膠所構成了201024821 VI. Description of the Invention: TECHNICAL FIELD The present invention relates to an optical element, and more particularly to a light guide plate. [Prior Art] The light source module is one of the key components of the liquid crystal display panel. Since the liquid crystal itself does not emit light, the function of the light source module is to supply a sufficient light source with uniform brightness and uniformity to enable normal display of images. ❹ Generally speaking, the light source module can be divided into two types: front light type and back light type, and the side light input type backlight module is a common configuration structure of the backlight type light source module, and is mainly applied to a small size liquid crystal display. , such as a liquid crystal display for a desktop computer or a notebook computer. The main components of the side-lit backlight module are the light guide plate and the lamp tube, wherein the lamp tube is placed on the side of the light guide plate. At present, a side-lit backlight module for a larger-sized liquid crystal display generally has a plurality of light sources disposed adjacent to the light guide plate to enhance brightness. The light source is, for example, a cold cathode fluorescent tube or an LED lamp. At present, the production methods of light guide plates are mainly divided into printed and non-printed. Among them, the printing type prints the optical dots on the bottom surface of the light guide plate by screen printing. The light emitted from the light source can be absorbed and re-diffused by the optical mesh on the bottom surface of the light guide plate, so that the light can be transmitted inside the light guide plate. Thereafter, the light is again emitted from the front side of the light guide plate. However, since the optical dot particles are not fine enough, the uniformity of the light distribution is poor, and the brightness and uniformity of the light guide plate are poor. Moreover, this process is not a one-time process, resulting in a relatively high cost of processing. < 201024821 In order to improve the shortcomings of the printing type, there is a non-printing manufacturing method. It is to design a plurality of microstructures on the mold core, and then mold the mold 6X into the mold, and use the mold to perform injection molding to form a light guide plate having an optical microstructure on the bottom surface. Among them, the manufacturing method of the mold core includes, for example, a micromachining technique and a metal etching technique. In the injection molding, the granular plastic material is uniformly heated to a molten state, and the molten plastic is injected into the hole at an appropriate injection speed and pressure, and the mold is cooled and solidified before being opened and ejected. Thus, a light guide plate having the same shape and size as the cavity is obtained. Among them, the setting of various parameters, such as the nature of the material, fluidity and mold structure, will affect the quality of the light guide plate. However, as various electronic products, such as mobile phones and cymbals, gradually move toward a thinner trend, the thickness of the light guide plate will become thinner, and some processes will occur in the process of forming the light guide plate by injection molding. Technical bottlenecks. For example, the fluidity of the molten plastic is insufficient to effectively fill the cavity, thereby causing a decrease in the molding rate, which in turn causes the optical effect of the light guide plate to be unnoticeable. In addition, the problem of insufficient fluidity of plastics can lead to poor flatness and residual stress. In addition, most of the current light guide plates are made of bismuth as a light guide plate, and then easily absorb moisture in the air, thereby causing the light guide plate to warp and deform. Therefore, how to make the light guide plate has a high molding rate is worthy of consideration by those who have ordinary knowledge in the field. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a light guide plate and a light guide plate. The method for manufacturing the light guide plate can improve the molding rate of the light guide plate. According to the above and other objects, the present invention provides a light guide plate having a plurality of first microstructures on a bottom surface thereof and a plurality of second microstructures on a light incident surface thereof. The second microstructure of the second microstructure is columnar and extending. In the longitudinal direction, the light plate is characterized in that it is mainly composed of hardened photosensitive hardening glue.
於上述之導光板中，感光硬化膠為紫化線硬化膠。 第二it導光板中，上述之導光板的出光面具有多個 上述之第三微結構呈菱鏡狀或半 於上述之導光板中， 球形狀。 於上述之導光板中，導光板的厚度大於0.05mm， 例如是介於0.3mm與1.1mm之間。 根據上述目的與其他目的，本發明提供一種 板的製造綠’其包括下述的步驟。首先，提供—第 模’該第模的表面上具有多個第—_，將未硬化的 -感光硬轉塗佈在第_成麵± ’轉第—_轉印在感 光硬化膠上，並形成多個第—微結構於感光硬化膠的底面 上。然後’將-驗覆蓋在感光硬姆上，且顯是由透明 ° 硬化膠進行照射並使其硬化。之 後，使硬錢_光魏軸第—成龍及顧相脫離。再 來，對硬化後的感光硬轉進行裁切以形成多個導光板，並 於這些導光板的人絲形鮮個第二微結構，這 構呈柱狀且延伸方向為縱向。 一$—mm 於上述之導光板的製造方法中，感光硬化膠為紫化線 201024821 硬化膠。 ’壓板的材質為拉伸聚 ，第一成型模的材質為 圖案的表面上塗佈鐵氟 ’未硬化的感光硬化膠 於上述之導光板的製造方法中 丙稀。 於上述之導光板的製造方法中 金屬，且於第一成型模中具有該第— 龍。In the above light guide plate, the photosensitive hardening glue is a purple line hardening glue. In the second it light guide plate, the light-emitting surface of the light guide plate has a plurality of the above-mentioned third microstructures which are in the shape of a prism or a half of the light guide plate. In the above light guide plate, the thickness of the light guide plate is greater than 0.05 mm, for example, between 0.3 mm and 1.1 mm. In accordance with the above and other objects, the present invention provides a green manufacturing of a board which includes the following steps. First, providing a first mold having a plurality of first-- on the surface of the first mold, and applying an uncured-photosensitive hard-transfer on the first surface to the surface of the photosensitive hardened adhesive, and A plurality of first microstructures are formed on the bottom surface of the photosensitive hardener. Then, the test was covered on a photosensitive hard disk, and it was visually irradiated with a transparent hardening glue and hardened. After that, the hard money _ Guang Wei axis - Jackie Chan and Gu Xiang are separated. Further, the hardened photosensitive hard turn is cut to form a plurality of light guide plates, and the human filaments of the light guide plates have a fresh second microstructure which is columnar and extends in the longitudinal direction. A $-mm In the above manufacturing method of the light guide plate, the photosensitive hardening glue is a purple line 201024821 hardening glue. The material of the platen is stretched, and the material of the first molding die is coated with a fluorine-fluorine uncured photosensitive sclerosing gel on the surface of the pattern in the above-mentioned method for producing a light guide plate. In the above method for manufacturing a light guide plate, the metal has the first dragon in the first molding die.
9 於上述之導光板的製造方法中 之黏度為50cps以上。 於上述之導光板的觀方法巾，在對練化後的感光 硬化膠進行裁_步射，包括下述的步驟：將—裁切刀對 硬化後的感光硬⑽進行縱向裁切，以形成導光板的入光 面，其中裁切刀的輪廓與第二微結構的輪廓相契合。 根據上述目的與其他目的，本發明提供另一種導 光板的製造方法，其包括下述的步驟。首先，將未硬化的一 感光硬化膠塗佈在透明的一傳輸帶上，於傳輸帶的上方設置 有一滾輪，且滾輪的表面上具有第一圖案，於傳輸帶的下方 設置有至少一光源。之後，將滾輪滾壓在感光硬化膠上，以 將上述之第一圖案轉印在感光硬化膠上，並形成多個第一微 結構於感光硬化膠上。再來，將光源所發出的光照射在感光 硬化膠上’以使感光硬化膠硬化。然後，將硬化後的感光硬 化膠與傳輸帶相分離。之後’對硬化後的感光硬化膠進行裁 切以形成多個導光板’並於這些導光板的入光面形成多個第 二微結構，這些第二微結構呈柱狀且延伸方向為縱向。 於上述之導光板的製造方法中，感光硬化膠為紫化線 6 201024821 硬化膠。 ❹9 The viscosity in the above method for producing a light guide plate is 50 cps or more. In the above-mentioned light guide plate method, the photo-curable adhesive after the tempering is cut, including the following steps: longitudinally cutting the hardened photosensitive hard (10) by the cutting knife to form The light incident surface of the light guide plate, wherein the contour of the cutting blade conforms to the contour of the second microstructure. In accordance with the above and other objects, the present invention provides a method of fabricating another light guide comprising the steps described below. First, an uncured photosensitive hardener is coated on a transparent belt, a roller is disposed above the belt, and the roller has a first pattern on the surface, and at least one light source is disposed below the belt. Thereafter, the roller is rolled on the photosensitive hardened adhesive to transfer the first pattern described above onto the photosensitive hardened adhesive, and a plurality of first microstructures are formed on the photosensitive hardened adhesive. Then, the light emitted from the light source is irradiated onto the photosensitive hardener to harden the photosensitive hardener. Then, the hardened photosensitive hardened rubber is separated from the transfer belt. Thereafter, the cured photosensitive adhesive is cut to form a plurality of light guide plates, and a plurality of second microstructures are formed on the light incident surfaces of the light guide plates. These second microstructures are columnar and extend in the longitudinal direction. In the above method for manufacturing a light guide plate, the photosensitive hardening adhesive is a creed line 6 201024821 hardened rubber. ❹
於上述之導光板的製造方法中 的黏度為50cps以上。 於上述之導光板的製造方法中 聚丙稀。 於上述之導光板的製造方法中 硬化^行裁_步驟中，包括下述的步驟T將: 硬化=就魏軸行縱喊切，則彡成導光板的入光 面’八中裁切刀的輪軸第二微結構的輪廓相契合。 把二巧上述目的與其他目的’本發明提供-種導光 板的製k方法，其包括下述的步驟。 首先’將透明的-第二成型模放置在透明的一傳輸帶 i楚=輸帶的上方設置有一滾輪，且該滾輪的表面上具 -於傳輸帶的下枝置有至少—光源，第二成型 模的表面上具有多㈣三_。縣，將未硬化的一感光硬 化膠塗佈在第二成細上，靖第三_轉印在感光硬化膠 上，並形成多個第三微結構於感光硬化膠的底面上。 再來’將滾輪滾壓在感光硬化膠上，以將上述之第一圖 案轉印在感光硬化膠上’並形成多個第一微結構於感光硬化 膠上。之後’將絲所發出的細射在感光硬轉上，以使 光硬轉與第二成型 模相分離。然後，對硬化後的感光硬化膠___鮮 個導光板，並於這些導光_人絲形❹㈣二微結構， 這些第二微結構呈柱狀且延伸方向為縱向。 感光硬化膠於硬化前 傳輸帶的材質為拉伸 在對該砀化德的威糸 7 201024821 於上述之導光板的製造方法中，感光硬化膠為紫化線 硬化膠。 於上述之導光板的製造方法中，感光硬化膠於硬化前 的黏度為50cps以上。 於上述之導光板的製造方法中，第二成型模的材質為 拉伸聚丙婦。 於上述之導光板的製造方法中，在對硬化後的感光硬 參 化膝進行裁切的步驟中，包括以下步驟：將-裁切刀對該硬 化後的感光硬化膠進行縱向裁切，以形成導光板的入光面， 其中裁切刀的輪廓與第二微結構的輪廓相契合。 為讓本發明之上述目的、特徵和優點更能明顯易 懂，下文將以實施例並配合所附圖示，作詳細說明如 下。 【實施方式】 請參閱圖1A至圖1E，圖1A至圖1E所繪示為本 ® 發明之實施例的導光板之製造流程圖。首先，請參照圖 1A，提供一第一成型模30 ’此第一成型模3〇的表面 31上具有多個第一圖案32，此第一圖案32為呈菱鏡狀的 凹槽’第一成型模30的材質為金屬，例如：鎳。而且， 在第一成型模30的表面31上還塗佈有鐵氟龍(Tefl〇r^。 再來，請參照圖1B，將一呈液狀且黏度超過5〇cps 的感光硬化膠20塗佈在第一成型模30的表面31上。所 謂的感光硬化膠是指：當受到某波段範圍的光線照射時，其 會產生硬化。在本實施例中，感光硬化膠20為紫化線硬 8 201024821 化膠，亦即其受到紫化線照射時會產生硬化。 接著，請參照圖1C，將一壓板40覆蓋在感光硬化 膠20上。此壓板40是由透明材質所構成，例如玻璃、 拉伸聚丙烯(oriented polypropylene)或其他不會與感光硬化 膠20間產生架橋(CIOss-link)作用的透明材質。 之後，請參照圖1D，使用一光源50對感光硬化膠 20進行照射。由於壓板40是由透明材質所構成，故光 ❸ 源50所發出的光線會透過壓板40而照射在感光硬化膠 20 ’而使感光硬化膠20硬化。在本實施例中，光源5〇 為紫外光燈。 由於壓板40是由不會與感光硬化膠2〇間產生架橋作 用的材質所構成’例如：拉伸聚丙烯，故於感光硬化膠2〇 硬化後，便可將壓板40輕易地拿開。而且，由於第一成 型模30上塗佈有鐵氟龍’因為感光硬化膠2〇不會與鐵氟 龍產生架橋，故於感光硬化膠2〇硬化後，可將感光硬化膠 ❹ 20從第一成型模30上取下。這樣一來，如圖1E所示， 硬化後的感光硬化膠20的下表面便具有多個第一微結構 61。第一微結構61的形狀與第一圖案％相對應，呈菱鏡柱 狀。然而，本領域具有通常知識者也可將第一圖案32設計 成其他形狀，例如半球形的凹槽，用以形成其他形狀的第一 微結構。 接著，請參照圖2A，將硬化後的感光硬化膠20進 行裁切’以形成如圖2A所示的導光板60,此導光板60的厚 度大於0.05mm ’較佳是介於〇 3rmn與l.imm之間。 201024821 請同時參照圖2Α斑m on η， _ 的卜㈣。士道以 圖犯所繪示為導光板60 而入Ϊ先板6G的底面62具有多個第—微結構6卜 61盥第二M個第二微結構64。上述之第一微結構 第：微呈柱狀’且其輪廊呈V字型。其中， 微:構64的延伸方向為縱向，亦即訊中的z方向。 :板60 61是從左至右由疏至密的方式排列在導 60’之所以要如此設計縣目在於：導光板 時’其相战紐絲，*右删是 此右側的第一微結構61必須排列的較為緊 ί 本領域具有通常知識者也可依據不_狀況而將 網設計祕他概，例如梯雜或具有鏡面的The viscosity in the above method for producing a light guide plate is 50 cps or more. In the above method for producing a light guide plate, polypropylene is used. In the above-mentioned method for manufacturing the light guide plate, the step T is performed, and the following step T is included: Hardening = swaying in the direction of the Wei axis, then forming the light-incident surface of the light guide plate The contour of the second microstructure of the axle coincides. The above object and other objects are provided by the present invention. The present invention provides a method for producing a light guide plate comprising the following steps. Firstly, the transparent-second molding die is placed on a transparent belt. The roller is provided with a roller, and the surface of the roller has at least a light source on the lower branch of the conveyor belt. There are many (four) three _ on the surface of the mold. In the county, an uncured hard photosensitive adhesive is coated on the second fine layer, and the third is transferred onto the photosensitive hardened adhesive, and a plurality of third microstructures are formed on the bottom surface of the photosensitive hardened adhesive. Then, the roller is rolled onto the photosensitive hardened adhesive to transfer the first pattern described above onto the photosensitive hardened rubber and a plurality of first microstructures are formed on the photosensitive hardened adhesive. Thereafter, the fine radiation emitted by the filament is hard-pressed on the photosensitive surface to separate the hard light from the second molding die. Then, the hardened photosensitive sclerosing glue ___ fresh light guide plate, and these light guide _ human filament ❹ (four) two microstructures, these second microstructures are columnar and extend in the longitudinal direction. Photosensitive hardened rubber before hardening The material of the transfer belt is stretched. Deterrence against the 砀化德 7 201024821 In the above-mentioned method for manufacturing a light guide plate, the photosensitive sclerosing glue is a purple line hardening glue. In the above method for producing a light guide plate, the viscosity of the photosensitive sclerosing gel before curing is 50 cps or more. In the above method for manufacturing a light guide plate, the material of the second molding die is a stretched polypropylene. In the above method for manufacturing a light guide plate, in the step of cutting the hardened photosensitive ginseng knee, the method includes the following steps: longitudinally cutting the hardened photosensitive hardened rubber with a cutting knife to Forming a light incident surface of the light guide plate, wherein the contour of the cutting blade conforms to the contour of the second microstructure. The above described objects, features, and advantages of the present invention will become more apparent from the following description. [Embodiment] Please refer to FIG. 1A to FIG. 1E. FIG. 1A to FIG. 1E are diagrams showing a manufacturing process of a light guide plate according to an embodiment of the present invention. First, referring to FIG. 1A, a first molding die 30' is provided. The surface 31 of the first molding die 3 has a plurality of first patterns 32. The first pattern 32 is a groove shaped like a prism. The material of the molding die 30 is a metal such as nickel. Further, Teflon (Tefl〇r^) is further coated on the surface 31 of the first molding die 30. Next, referring to Fig. 1B, a photosensitive curing adhesive 20 which is liquid and has a viscosity exceeding 5 〇 cps is coated. The cloth is coated on the surface 31 of the first molding die 30. The so-called photosensitive hardening gel means that it is hardened when it is irradiated with light of a certain wavelength range. In the present embodiment, the photosensitive hardening adhesive 20 is a purple line hard. 8 201024821 The rubber, that is, it will be hardened when it is irradiated by the purple line. Next, referring to Fig. 1C, a pressure plate 40 is covered on the photosensitive hardening glue 20. The pressure plate 40 is made of a transparent material, such as glass. A stretched polypropylene or other transparent material that does not act as a bridge between the photosensitive hardener 20. After that, referring to FIG. 1D, the photosensitive hardener 20 is irradiated with a light source 50. The platen 40 is made of a transparent material, so that the light emitted from the pupil source 50 is irradiated onto the photosensitive hardener 20' through the platen 40 to harden the photosensitive hardener 20. In this embodiment, the light source 5 is ultraviolet light. Light. Because the pressure plate 40 is It does not form a material that bridges the photo-curing adhesive 2'. For example, the polypropylene is stretched, so that the platen 40 can be easily removed after the photosensitive hardener 2 is hardened. Moreover, due to the first molding The mold 30 is coated with Teflon' because the photosensitive hardening rubber 2 does not bridge with the Teflon, so after the photosensitive hardening rubber 2 is hardened, the photosensitive hardened plastic 20 can be taken from the first molding die 30. Thus, as shown in FIG. 1E, the lower surface of the cured photosensitive hardener 20 has a plurality of first microstructures 61. The shape of the first microstructures 61 corresponds to the first pattern %, and is a mirror. Columnar. However, those skilled in the art can also design the first pattern 32 into other shapes, such as hemispherical grooves, to form first microstructures of other shapes. Next, please refer to Figure 2A, which will harden. The subsequent photosensitive hardener 20 is cut to form a light guide plate 60 as shown in FIG. 2A, and the thickness of the light guide plate 60 is greater than 0.05 mm. Preferably, it is between 〇3rmn and l.imm. Figure 2: Freckle m on η, _ Bu (four). The bottom surface 62 of the first plate 6G is shown as a light guide plate 60 having a plurality of first microstructures 6 and 61 second M and second microstructures 64. The first microstructure described above is slightly cylindrical. And the wheel corridor is V-shaped. Among them, the extension direction of the micro-structure 64 is longitudinal, that is, the z-direction in the message. The plate 60 61 is arranged from left to right in a loose to dense manner. Therefore, to design the county in this way: when the light guide plate is 'the phase warfare, the right cut is the first micro-structure 61 on the right side must be arranged tightly. Those with ordinary knowledge in the field can also rely on the situation. Web design secrets, such as ladder or mirror
絮硬化後的感光硬化膠20進行裁切時，可使用雷射切 割、線切贼戰切錢行_，較佳是使賴切刀進行切 割’以發揮大量生產的優點。請參照圖3，圖3所緣示一裁 切刀的上視圖，此裁切刀1G用於切割出導光板⑼之入光面 63，且其輪廓與第二微結構64的輪_契合。請同時參照 圖1E與圖3’當感光硬化膠2〇從第一成型模3〇(示於 圖1D)上取下後，可將裁切刀1〇的延伸方向對準？方向， ，使裁切刀1G沿著Z方向往下切，以錢光硬化膠如的 其中-側面形成如圖2B所示之第二微結構糾。至於導光板 60的其他侧面，則可用平整的裁切刀進行裁切。待裁切完成 後，即形成多片如圖2A所示之導光板6〇。 在圖1A至圖1E所示之製程十，壓板仙的按壓面 41為平坦的表面，但本領域具有通常知識者也可於按 201024821 壓面41上雕刻圖案。這樣一來，便可在導光板的出光面 上形成微結構。請參照圖4,圖4所示之導光板6〇，除了在底 面62上设置有多個第一微結構61’外其出光面65，上還設 置有呈菱鏡狀的第三微結構66，，此第三微結構66，具有聚集 光線的效果。當然，本領域具有通常知識者也可依據不同的 狀况而將第二微結構66,設計成其他形狀，例如頂端具有圓 角的菱鏡結構。 ❹ 除了圖1A至圖1E所介紹的導光板的製造方法 外，以下將介紹本發明之另一實施例的導光板之製造流 程。請參照圖5，圖5中繪示出導光板的製造設備，此製 造設備包括：一容器71、一傳輸帶釋放輪72、一滚輪 73、一傳輸帶收納輪74、一產品收納輪75、一第一光 源76a、一第二光源76b、一第三光源76c、一傳輸帶 77、一辅助輪78與一閥門79。其中，容器71内裴有 呈液狀且黏度超過5〇cps的感光硬化膠20，而閥門79則可 控制感光硬化膠2〇的流出量’藉由控制流出量，則可控制 ® 感光硬化膠20沉積於傳輸帶77上的厚度。傳輸帶77是 從傳輸帶釋放輪72釋放，並由傳輸帶收納輪74所收 納。此傳輸帶77是由不會與感光硬化膠20間產生架橋 作用的透明材質所構成，例如：拉伸聚丙烯。 在本實施例中，第一光源76a、第二光源76b與第 三光源76c為紫外光燈。其中，第二光源76b是用以 對感光硬化勝20作初步地硬化。感光硬化膠20經過初步硬 化後，會受到滾輪73的滚壓，滚輪73的表面73a上具有第 一圖案（未繪示，但其形狀類似圖1A之第一圖案32)。當 201024821 滚輪73滾壓過感光硬化膠20後，第一圖案會轉印至感光硬 化膠20上，以形成多個第一微結構61。 在滾輪73對感光硬化膠20進行滾壓的同時，第一光源 76a與第三光源76c皆會對感光硬化膠2〇進行照射，這 樣可使感光硬化膠20進一步硬化。 在本實施例中，光源共有3個，但本領域具有通常知識When the photosensitive hardened adhesive 20 after the flocculation is cut, it is possible to use a laser cutting, a wire cutting thief, and a cutting machine, preferably a cutting knife to perform the mass production. Referring to Fig. 3, a top view of a cutting blade is shown. The cutting blade 1G is used to cut the light incident surface 63 of the light guide plate (9), and its contour is matched with the wheel of the second microstructure 64. Referring to Fig. 1E and Fig. 3', when the photosensitive hardened rubber 2 is removed from the first molding die 3 (shown in Fig. 1D), the extending direction of the cutting blade 1 对准 can be aligned. In the direction, the cutting blade 1G is cut down along the Z direction, and the side surface of the light-curing adhesive such as the second micro-structure is formed as shown in Fig. 2B. As for the other sides of the light guide plate 60, it can be cut with a flat cutting blade. After the cutting is completed, a plurality of light guide plates 6A as shown in Fig. 2A are formed. In the process 10 shown in Figs. 1A to 1E, the pressing surface 41 of the platen is a flat surface, but those skilled in the art can also engrave the pattern on the pressing surface 41 of 201024821. In this way, a microstructure can be formed on the light exit surface of the light guide plate. Referring to FIG. 4, the light guide plate 6 is shown in FIG. 4, except that a plurality of first microstructures 61' are disposed on the bottom surface 62, and a light-emitting surface 65 is disposed on the bottom surface 62, and a third microstructure 66 in the shape of a prism is disposed thereon. , the third microstructure 66 has the effect of collecting light. Of course, those having ordinary skill in the art can also design the second microstructure 66 into other shapes according to different conditions, such as a prism structure having a rounded corner at the top. In addition to the manufacturing method of the light guide plate described in Figs. 1A to 1E, the manufacturing process of the light guide plate according to another embodiment of the present invention will be described below. Referring to FIG. 5, FIG. 5 illustrates a manufacturing apparatus of a light guide plate. The manufacturing apparatus includes: a container 71, a belt release pulley 72, a roller 73, a belt storage wheel 74, and a product storage wheel 75. A first light source 76a, a second light source 76b, a third light source 76c, a conveyor belt 77, an auxiliary wheel 78 and a valve 79. Among them, the container 71 is filled with a photosensitive hardening glue 20 which is liquid and has a viscosity exceeding 5 〇 cps, and the valve 79 can control the outflow amount of the photosensitive hardening rubber 2' by controlling the outflow amount, and can control the photosensitive hardening adhesive 20 is deposited on the conveyor belt 77 in thickness. The conveyor belt 77 is released from the belt release pulley 72 and received by the belt accommodation wheel 74. This belt 77 is made of a transparent material that does not bridge the photosensitive hardener 20, for example, stretched polypropylene. In the present embodiment, the first light source 76a, the second light source 76b, and the third light source 76c are ultraviolet lamps. The second light source 76b is used for preliminary hardening of the photosensitive hardening 20. After the photosensitive hardening adhesive 20 is initially hardened, it is subjected to rolling by the roller 73. The surface 73a of the roller 73 has a first pattern (not shown, but its shape is similar to the first pattern 32 of Fig. 1A). When the 201024821 roller 73 is rolled over the photosensitive harden 20, the first pattern is transferred onto the photosensitive hardener 20 to form a plurality of first microstructures 61. While the roller 73 is rolling the photosensitive harden 20, both the first light source 76a and the third light source 76c illuminate the photosensitive hardened adhesive 2, which further hardens the photosensitive hardened adhesive 20. In this embodiment, there are three light sources, but the general knowledge in the field
者也可依據情況調整光源的數量，例如指設置一個光源，或 設置3個以上的光源。 由於傳輸帶77是由不會與感光硬化膠2〇間產生架橋 作用的透明材f所構成’故硬化後的硬化膠如可與傳 輸帶77進行分離，而使感光硬化膠2〇捲繞在產品收納 輪75上。之後，可將捲繞在產品收納輪乃上的感光硬 化谬20取下’並對其進行切割，以形成# 2八所示之導光板 1〇。於切割時’可使關3所示之裁切刀H)，以於導光板 6〇之入光面63形成如圖2B所示之第二微結構64。 =而，若要在導光板的出光面形成微結構，亦即為了製 =如圖4所示之導光板6〇,，則必需對圖5所示之製造設 備進仃調整。請參照圖6與圖7 符號/ ，與上1施例相同的元件將標以相同的 77 Γ先了第二成型模3G，放置在透明的傳輸帶 32,此模3°，的表面31，上具有多個第三圖案 案呈半球形的凹槽狀。接著，將未硬化的 201024821 感光硬化膠20 (黏度為50cps以上）塗佈在第二成型模3〇, 上，以將第三圖案32’轉印在感光硬化膠20上並形成多個第 三微結構66’於感光硬化膠20的底面上。The number of light sources can also be adjusted depending on the situation, for example, by setting a light source or by setting more than three light sources. Since the conveyor belt 77 is composed of a transparent material f which does not form a bridging action with the photosensitive hardener 2, the hardened rubber after hardening can be separated from the conveyor belt 77, and the photosensitive hardener 2 is wound around Product storage wheel 75. Thereafter, the photosensitive hardened crucible 20 wound on the product storage wheel can be removed and cut to form a light guide plate 1 shown in #2. At the time of cutting, the cutting blade H) shown in Fig. 3 can be formed so that the light incident surface 63 of the light guide plate 6 is formed into a second microstructure 64 as shown in Fig. 2B. If, in order to form a microstructure on the light-emitting surface of the light guide plate, that is, to manufacture the light guide plate 6A as shown in Fig. 4, it is necessary to adjust the manufacturing apparatus shown in Fig. 5. Referring to FIG. 6 and FIG. 7 symbol /, the same components as the above embodiment 1 will be marked with the same 77 first second molding die 3G, placed on the transparent transfer belt 32, the surface 31 of the mold, A plurality of third patterns have a semi-spherical groove shape. Next, an uncured 201024821 photosensitive hardener 20 (having a viscosity of 50 cps or more) is coated on the second molding die 3 to transfer the third pattern 32' onto the photosensitive hardener 20 and form a plurality of third The microstructure 66' is on the bottom surface of the photosensitive hardener 20.
當感光硬化膠20沉積在第二成型模30,表面3 i，的同時， 第二光源76b所發出的光線會透過透明的傳輸帶77與 第二成型模30’，而對感光硬化膠20作初步地硬化。感光硬 化膠20經過初步硬化後’會受到滾輪73的滾壓，滾輪73 ❹ 力表面73a上具有第一圖案（未纷示，但其形狀類似圖1A 之第一圖案32)。當滚輪73滾壓過感光硬化膠2〇後，第一 圖案會轉印至感光硬化膠20上，以形成多個第一微結構61。 在滾輪73對感光硬化膠20進行滾壓的同時，第一光源 76a與第三光源76c皆會對感光硬化膠2〇進行照射，這 樣可使感光硬化膠20進一步硬化。 待感光硬化膠20完全硬化後，可將第二成型模3〇，從傳 輸帶77取下，由於第二成型模3〇,是由不會與感光硬化 ® 膠20間產生架橋作用的透明材質所構成，例如：拉伸聚丙 烯，故感光硬化膠20可輕易地從第二成型模3〇,上取下。這 樣一來，就可製作出如圖4所示之導光板6〇,。 在上述之触t ’雜73 ±的第—圖缺與導光板6〇, 上的第-微結構61，相對應，而第二成麵3〇,上 32’則是對應至導光板6〇,上的第三微結構66，。然而了本領 知識者也可將第三圖案32,設計成與第一微結構 ’而將滚輪73上的第一圖案設計成與第三微結構 13 201024821 於上述之實施例所介紹之導光板的製造流程中，皆不需 使用到射出成型的製造步驟，故不需考慮模流之流動 性的問題，這樣不僅增加設計上的簡易性且也使導 光板的成型率增加。When the photosensitive hardener 20 is deposited on the surface of the second molding die 30, the light emitted by the second light source 76b passes through the transparent transfer belt 77 and the second molding die 30', and is applied to the photosensitive hardener 20 Initially hardened. After the photosensitive hardening 20 is subjected to preliminary hardening, it is subjected to rolling by the roller 73, and the roller 73 has a first pattern on the pressing surface 73a (not shown, but its shape is similar to the first pattern 32 of Fig. 1A). After the roller 73 is rolled over the photosensitive hardener 2, the first pattern is transferred onto the photosensitive hardener 20 to form a plurality of first microstructures 61. While the roller 73 is rolling the photosensitive harden 20, both the first light source 76a and the third light source 76c illuminate the photosensitive hardened adhesive 2, which further hardens the photosensitive hardened adhesive 20. After the photosensitive hardener 20 is completely hardened, the second molding die 3 can be removed from the transfer belt 77. Since the second molding die 3 is a transparent material which does not bridge the photosensitive hardening adhesive 20 The composition is, for example, stretched polypropylene, so that the photosensitive harden 20 can be easily removed from the second molding die. In this way, the light guide plate 6A as shown in Fig. 4 can be produced. In the above-mentioned touch, the first figure of the touch t'za 73± is corresponding to the first-microstructure 61 on the light guide plate 6〇, and the second face is 3〇, and the upper 32' corresponds to the light guide plate 6〇. , on the third microstructure 66. However, the person skilled in the art can also design the third pattern 32, and the first pattern on the roller 73, and the first pattern on the roller 73 to be the same as the third microstructure 13 201024821 in the light guide plate described in the above embodiments. In the manufacturing process, it is not necessary to use the manufacturing step of injection molding, so that it is not necessary to consider the problem of the fluidity of the mold flow, which not only increases the design simplicity but also increases the molding rate of the light guide plate.
本發明以實施例說明如上，然其並非用以限定本 發明所主張之專利_範圍。其專利保護範圍當視後 附之申請專利範圍及其等同領域而定。凡本領域具有 通常知識者，在不脫離本專利精神或範圍内，所作之 ^或潤飾’均屬於本發明示精神下所完成之等 2變或叹汁，且應包含在下述之申請專利範圍内。 【圖式簡單說明】 =上至@ 1E所緣不為本發明之實施例的 造流程圖。 所纷示為導光板的前視圖，圖犯輯示為導光板的 上視圖。 圖3所繪示一裁切刀的上視圖。 圖4所繪示為本發明之另一實施例的導光板。 圖5所綠示為導光板的製造設備。 圖6所綠示為導光板之製造流程之再一實施例。 ® 7 L為第二成麵的前視圖。 【主要元件符號說明】 201024821 ίο :裁切刀 20 :感光硬化膠 30 :第一成型模 30’ ：第二成型模 31、 31’ ：表面 32、 32’ ：第一圖案 40 :壓板 41 :按壓面 50 :光源 60、 60’ ：導光板 61、 61’ ··第一微結構 62、 62’ ：底面 63 :入光面 64 :第二微結構 65’ ：出光面 66’ ：第三微結構 71 :容器 72 :傳輸帶釋放輪 73 :滚輪 74 :傳輸帶收納輪 75 :產品收納輪 201024821 76a :第一光源 76b :第二光源 76c :第三光源 77 :傳輸帶 78 :輔助輪 79 :閥門The present invention has been described above by way of examples, and is not intended to limit the scope of the invention claimed. The scope of patent protection is subject to the scope of the patent application and its equivalent. Those skilled in the art, without departing from the spirit or scope of the patent, the inventions or modifications may be included in the spirit of the invention, and shall be included in the following claims. Inside. [Simple description of the drawing] = Up to @1E is not a flowchart of the embodiment of the present invention. The front view of the light guide plate is shown as a top view of the light guide plate. Figure 3 depicts a top view of a cutting knife. FIG. 4 illustrates a light guide plate according to another embodiment of the present invention. Green in Fig. 5 shows the manufacturing equipment of the light guide plate. Green in Fig. 6 shows still another embodiment of the manufacturing process of the light guide plate. ® 7 L is the front view of the second face. [Main component symbol description] 201024821 ίο : Cutting blade 20: Photosensitive hardener 30: First molding die 30': Second molding die 31, 31': Surface 32, 32': First pattern 40: Platen 41: Press Face 50: light source 60, 60': light guide plate 61, 61' · first microstructure 62, 62': bottom surface 63: light incident surface 64: second microstructure 65': light exit surface 66': third microstructure 71: container 72: conveyor belt release wheel 73: roller 74: conveyor belt storage wheel 75: product storage wheel 201024821 76a: first light source 76b: second light source 76c: third light source 77: conveyor belt 78: auxiliary wheel 79: valve