.201019004 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，特別是一種裝設於背光 模組内部的光學元件。 【先前技術】 近年來’傳統的陰極射線管顯不器（即俗稱的crt 顯示器）已漸漸地被液晶顯示器所取代，主要原因在 於液晶顯示器所釋放出的輻射量遠遠小於CRT顯示 器，且液晶顯示器在這幾年的製造成本也顯著地降 低。一般來說’液晶顯示器包括背光模組與液晶面板 兩大部分，而背光模組的主要功用在於提供光源供液 晶顯示器使用。 請參照圖1A，圖1A所緣示為一習知的背光模組。 此背光模組100包括冷陰極螢光燈管（CCFL)110、反 射罩120、擴散板130、擴散膜142與增亮膜（Brightness Enhancement Film，俗稱：bEF) 144，冷陰極螢光燈 管110用以產生光源，而反射罩12〇則是用以將間隔 排列的冷陰極螢光燈管110所產生的光線導引至朝擴 散板130之方向。擴散板130的功用主要是將冷陰極 螢光燈管ί 10所發出的光線進行擴散，以使照射至液 晶面板（未繪示）的光線能更佳均勻，而較不會在液 晶顯示器的顯示面上產生亮度不均勻的現象。此外， 由於擴散板130具有多個光擴散粒子，所以會造成擴 散板130的穿透率降低。一般來說，擴散板13〇的穿 3 201019004 透率為50%〜70%。 此外，擴散板130往往仍不足以完全克服亮度不 均勻的現象，所以需加上擴散膜142,以使光線更均 勻地擴散’擴散膜142是一種於其表面上均勻塗佈有 光擴散粒子的光學膜。另外，為了增加於視角範圍的 亮度’因此在擴散膜142的上方加上增亮膜144，此 增免膜144的厚度約〇.〇62mm〜0.375mm。由於增亮膜 144的上方設有多個菱鏡狀的微結構，故具有聚光的效 果’可讓增亮膜144所射出的光線之出光角度變小， 進而增加背光模組100在視角範圍内所呈現的亮度。 請參照圖1B’圖1B所繪示為圖1A之增亮膜的前 視圖。增亮膜144主要由一基板144a與一結構層144b 所構成。其中’基板144a的厚度約為175^111，其材 質為透明的聚對苯二甲酸乙二g旨（p〇lyethyiene terephthalate ’簡稱PET)，而結構層144b的厚度約為 25 // m ’其材質則為壓克力樹脂(photosensitive resin) 〇 然而’基板144a的設置會使材料成本增加。而且， 當光線Ιι從增亮膜144的入射面144c入射後，需經過 二層介質（亦即：基板144a與結構層144b)才能從 增亮膜144的出射面144d射出，這樣會增加光的耗損 性。此外’由於基板144a與結構層144b的折射率不 同，故光線I!至少須經過三次折射才能從增亮膜144 的出射面144d射出’也因此增免膜144的設計者於設 計時需考慮較多的變數，這樣會增加於設計上的困難 度0 201019004 因此，如何降低增亮膜144的材料成本且減少設 計者於設計上的困難度，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光學元件，此光學元件可 減少材料成本及設計者於設計上的困難度。 根據上述目的與其他目的，本發明提供一種光學元 馨件，此光學元件呈片狀且使用於背光模組的内部，該光學元 件的表面上具有多個第-微結構，其特徵在於：該光學元件 主要由硬化後的感光硬化膠所構成。其中，感光硬化膠 紫化線硬化膠。 於上述之光學元件中，上述之第一微結構是設置在光 學元件的出光面，且上述之第一微結構的形狀為菱鏡狀。 於上述之光學元件中，上述之第一微結構是設置在光 學元件的出光面，且上述之第一微結構的形狀為半球形狀。 • 於上述之光學元件中，光學元件的厚度約為50/ζπι。 根據上述目的與其他目的，本發明提供一種光學元 件的製造方法，其包括下述雜驟。首先，將—未硬化的感 光硬化膠塗佈在-成型模上，該成型模的表面上具有多個第 微結構，而該感光硬化膠塗佈在這些第二微結構上。然 後’將-顯覆蓋械光魏膠上，且該顧是由透明材質 所構成。再來，將感光硬化膠硬化，以形成一光學元件。之 後，使光學元件與成型模及屡板相脫離。其中，$光硬化膠 為紫化線硬化谬。 201019004 於上述之光學元件的製造方法中，壓板的材質為拉伸 聚丙稀。 於上述之光學元件的製造方法中，成麵的材質為金 屬，且於成型模中具有第二微結構的表面上塗佈鐵氟龍。 於上述之光學元件的製造方法中，未硬化的感光硬化 膠之黏度為50cps以上。 根據上述目的與其他目的，本發明提供另一種光學 ❿ 元件的製造方法，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 有一滚輪，且該滾輪的表面上具有壓印圖案，於傳輸帶的下 方6又置有至少一光源。之後，將滚輪滾壓在感光硬化膠上， 以將上述之壓印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 述之第一微結構上，以使第一微結構硬化。然後，將硬化後 的感光硬化膠與傳輸帶相分離。之後，將硬化後的感光硬化 膠分割成多個光學元件。 於上述之光學元件的製造方法中，感光硬化膠為紫化 線硬化膠。 ‘於上述之光學元件的製造方法中，感光硬化膠於硬化 刖的黏度為50cps以上。 於上述之光學元件的製造方法中，傳輸帶的材質為拉 伸聚丙烯。 由於本發明的光學元件並未設置基板，故可減少材 料成本與厚度。此外’光線從光學元件的入射面入射 6 201019004 後，僅=過-層介質便能從光料件的出射面射出， 這樣销少設計者於設計光學元件時所需考慮 而減t設計上的困難度。而且，因為光線僅需經過-層介質，故光學7G件對光線的托損性較低。也因此光學 元件相較於習知的增亮財較㈣性能與較低的成本。 *為讓本發明之上述目的、特徵和優點更能明㈣ 懂’下文將以實關並配合所附圖示，作詳細說明如 下。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an optical component, and more particularly to an optical component mounted inside a backlight module. [Prior Art] In recent years, 'traditional cathode ray tube display (known as crt display) has gradually been replaced by liquid crystal display, the main reason is that the amount of radiation released by the liquid crystal display is much smaller than that of CRT display, and liquid crystal The manufacturing cost of displays in these years has also been significantly reduced. Generally, a liquid crystal display includes a backlight module and a liquid crystal panel. The main function of the backlight module is to provide a light source for use in a liquid crystal display. Please refer to FIG. 1A , which illustrates a conventional backlight module. The backlight module 100 includes a cold cathode fluorescent lamp (CCFL) 110, a reflector cover 120, a diffusion plate 130, a diffusion film 142 and a brightness enhancement film (brightness enhancement film, commonly known as bEF) 144, and a cold cathode fluorescent lamp tube 110. The light source is used to generate the light source, and the reflector 12 is used to guide the light generated by the closely spaced cold cathode fluorescent tubes 110 to the direction of the diffusion plate 130. The function of the diffusion plate 130 is mainly to diffuse the light emitted by the cold cathode fluorescent lamp ί 10 so that the light irradiated to the liquid crystal panel (not shown) can be more uniform and less displayed on the liquid crystal display. There is a phenomenon of uneven brightness on the surface. Further, since the diffusion plate 130 has a plurality of light-diffusing particles, the transmittance of the diffusion plate 130 is lowered. In general, the diffusion plate 13 〇 wears 3 201019004 penetration rate is 50% ~ 70%. In addition, the diffusion plate 130 is often insufficient to completely overcome the phenomenon of uneven brightness, so a diffusion film 142 is required to diffuse the light more uniformly. The diffusion film 142 is uniformly coated with light-diffusing particles on its surface. Optical film. Further, in order to increase the brightness in the viewing angle range, a brightness enhancement film 144 is added above the diffusion film 142, and the thickness of the film 144 is about 〇62 mm to 0.375 mm. Since a plurality of prism-shaped microstructures are disposed above the brightness enhancement film 144, the effect of collecting light can reduce the light exiting angle of the light emitted by the brightness enhancement film 144, thereby increasing the range of the backlight module 100 in the viewing angle. The brightness presented inside. Referring to Figure 1B', Figure 1B is a front view of the brightness enhancing film of Figure 1A. The brightness enhancing film 144 is mainly composed of a substrate 144a and a structural layer 144b. Wherein the thickness of the substrate 144a is about 175^111, the material of which is transparent polyethylene terephthalate (PET), and the thickness of the structural layer 144b is about 25 // m ' The material is a photosensitive resin. However, the setting of the substrate 144a increases the material cost. Moreover, when the light ray is incident from the incident surface 144c of the brightness enhancement film 144, it is required to pass through the two-layer medium (ie, the substrate 144a and the structural layer 144b) to be emitted from the exit surface 144d of the brightness enhancement film 144, which increases the light. Depletion. In addition, since the refractive index of the substrate 144a and the structural layer 144b are different, the light I! must be refracted at least three times to be emitted from the exit surface 144d of the brightness enhancement film 144. Therefore, the designer of the film 144 should be considered in design. A lot of variables, which will increase the difficulty of design. 0 201019004 Therefore, how to reduce the material cost of the brightness enhancement film 144 and reduce the design difficulty of the designer is worthy of consideration by those who have common knowledge in the field. SUMMARY OF THE INVENTION It is an object of the present invention to provide an optical component that reduces material cost and design difficulty for the designer. In accordance with the above and other objects, the present invention provides an optical element that is in the form of a sheet and is used in the interior of a backlight module having a plurality of first-micro structures on its surface, characterized in that: The optical component is mainly composed of a hardened photosensitive hardener. Among them, photosensitive hardening glue, purple line hardening glue. In the above optical element, the first microstructure is disposed on a light-emitting surface of the optical element, and the shape of the first microstructure is a magenta shape. In the above optical element, the first microstructure is disposed on a light-emitting surface of the optical element, and the shape of the first microstructure is a hemispherical shape. • In the above optical components, the thickness of the optical component is approximately 50/ζπι. In accordance with the above and other objects, the present invention provides a method of producing an optical element comprising the following steps. First, an uncured photosensitive hardener is coated on a molding die having a plurality of microstructures on the surface thereof, and the photosensitive hardener is coated on the second microstructures. Then, the 'will-apply' is covered with a soft gel, and the material is made of a transparent material. Further, the photosensitive hardener is hardened to form an optical element. Thereafter, the optical element is separated from the molding die and the repeating plate. Among them, the light hardening glue is hardened by a purple line. 201019004 In the above method for manufacturing an optical element, the material of the pressure plate is stretched polypropylene. In the above method for producing an optical element, the surface of the surface is made of metal, and the surface having the second microstructure in the molding die is coated with Teflon. In the above method for producing an optical element, the viscosity of the uncured photosensitive cured adhesive is 50 cps or more. In accordance with the above and other objects, the present invention provides a method of fabricating another optical 元件 element comprising the steps described below. First, an unhardened photosensitive hardener is coated on a transparent conveyor belt, a roller is disposed above the conveyor belt, and the roller has an embossed pattern on the surface thereof, and at least 6 below the conveyor belt a light source. Thereafter, the roller is rolled on the photosensitive hardened adhesive to transfer the above-described imprint pattern onto the photosensitive hardened adhesive, and a plurality of first microstructures are formed on the photosensitive hardened adhesive. Then, the illumination emitted by the light source is described on the first microstructure to harden the first microstructure. Then, the hardened photosensitive hardener is separated from the conveyor belt. Thereafter, the hardened photosensitive resin is divided into a plurality of optical elements. In the above method for producing an optical element, the photosensitive hardening gel is a varnish. In the above method for producing an optical element, the viscosity of the photosensitive sclerosing gel on the cured crucible is 50 cps or more. In the above method of manufacturing an optical element, the material of the transfer belt is a stretched polypropylene. Since the optical element of the present invention is not provided with a substrate, the material cost and thickness can be reduced. In addition, after the light is incident on the incident surface of the optical element, 6 201019004, only the over-layer medium can be ejected from the exit surface of the optical element, so that the designer has to consider the design of the optical component and reduce the design. Difficulty. Moreover, since the light only needs to pass through the -layer medium, the optical 7G member has a low loss of light. Therefore, the optical components are better than the conventional brightening (4) performance and lower cost. * The above objects, features, and advantages of the present invention will become more apparent. (4) The following will be described in detail below with reference to the accompanying drawings.
【實施方式】 請參閱圖2A至圖2E，圖2A至圖2E所繪示為本 發明之實施例的光學元件之製造流程圖。首先，請參照 圖2A，提供一成型模30，此成型模3〇的表面31上 具有多個第二微結構32,此第二微結構32為呈菱鏡狀的凹 槽’成型模30的材質為金屬，例如：鎳。而且，在成 型模30的表面31上還塗佈有鐵氟龍(Tefl〇n)。 再來，請參照圖2B，將一呈液狀且黏度超過5〇cps 的感光硬化膝20塗佈在成型模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2〇為紫化線硬化膠， 亦即其受到紫化線照射時會產生硬化。 接著’晴參照圖2C ’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(cross-link)作用的透明材質。 201019004 之後’請參照圖2D，使用一光源5〇對感光硬化膠 20進行照射。由於壓板40是由透明材質所構成，故光 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，故於感光硬化膠20硬化後，便可將壓板 40輕易地拿開。而且，由於成型模30上塗佈有鐵氟龍， 因為感光硬化膠20不會與鐵氟龍產生架橋，故於感光硬化 膠20硬化後，可將感光硬化膠20從成型模3〇上取下。 這樣一來，成型後的感光硬化膠20便為一具有多個第一 微結構61的光學元件60 (如圖2E所示）。 相較於圖1B之增亮膜144，由於光學元件6〇並未 設置基板，故可減少材料成本與厚度。在本實施例中， 光學元件60的厚度約為50 y m。在此，光學元件6〇的 厚度是指從光學元件60的入射面62至第一微結構61之 頂端之距離。此外，相較於增亮膜144，光線込從光學 元件60的入射面62入射後，僅需經過一層介質便能從 光學元件60的出射面63射出，這樣可減少設計者於設 計光學το件60時所需考慮的變數，從而減少設計上的困難 度而且，因為光線僅需經過一層介質，故光學元件 6t)對，線的耗概較低。也目此’光學元件6()相較於習知 的增亮膜144有較佳的性能與較低的成本。 藉由圖2A至圖2E所示之製程，除了可製作出具 有聚光功能的絲元件㈣，還可設計㈣絲散功能的 201019004[Embodiment] Please refer to FIG. 2A to FIG. 2E, and FIG. 2A to FIG. 2E are flowcharts showing the manufacture of an optical element according to an embodiment of the present invention. First, referring to FIG. 2A, a molding die 30 is provided. The surface 31 of the molding die 3 has a plurality of second microstructures 32. The second microstructures 32 are in the shape of a mirror-shaped groove 30. The material is metal, for example: nickel. Further, Teflon (Tefl〇n) is further coated on the surface 31 of the molding die 30. Next, referring to Fig. 2B, a photosensitive hardened knee 20 which is liquid and has a viscosity exceeding 5 〇 cps is coated on the surface 31 of the molding die 30. The so-called photo-curing adhesive means that it is hardened when exposed to light in a certain range of wavelengths. In the present embodiment, the photosensitive hardening adhesive 2 is a purple line hardened rubber, that is, it is hardened when it is irradiated with a purple line. Next, a platen 40 is overlaid on the photosensitive hardener 20 with reference to Fig. 2C'. The platen 40 is made of a transparent material such as glass, oriented polypropylene or other transparent material which does not cause a cross-linking action with the photosensitive hardener 20. After 201019004, please refer to Fig. 2D, and the photosensitive hardener 20 is irradiated with a light source 5?. Since the platen 40 is made of a transparent material, the light emitted from the light 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 an ultraviolet lamp. Since the platen 40 is made of a material that does not cause bridging with the photosensitive hardener 2, the platen 40 can be easily removed after the photosensitive hardener 20 is hardened. Moreover, since the molding die 30 is coated with Teflon, since the photosensitive hardening adhesive 20 does not bridge with the Teflon, after the photosensitive hardening adhesive 20 is hardened, the photosensitive hardening adhesive 20 can be taken from the molding die 3 under. Thus, the formed photosensitive hardener 20 is an optical member 60 having a plurality of first microstructures 61 (as shown in Fig. 2E). Compared to the brightness enhancement film 144 of Fig. 1B, since the optical element 6 is not provided with a substrate, the material cost and thickness can be reduced. In the present embodiment, the optical element 60 has a thickness of about 50 y m. Here, the thickness of the optical element 6A refers to the distance from the incident surface 62 of the optical element 60 to the top end of the first microstructure 61. In addition, compared to the brightness enhancement film 144, after the light ray is incident from the incident surface 62 of the optical element 60, it can be ejected from the exit surface 63 of the optical element 60 only through a layer of medium, thereby reducing the design of the optical component by the designer. The variables to be considered at 60 o'clock, thereby reducing the difficulty of design. Moreover, since the light only needs to pass through a layer of medium, the optical element 6t) is relatively low in line consumption. It is also apparent that the optical element 6() has better performance and lower cost than the conventional brightness enhancing film 144. According to the process shown in FIG. 2A to FIG. 2E, in addition to the wire element (4) having the concentrating function, the (four) silk function can be designed.
光學元件，用以取代圖1A 3所_為用於製作具光擴參照圖3，圖 成型模30,與圖2 A 的先學疋件之成型模。此 A之成型模30的最夫装2|丨— 模30’上的第二料紝搂”，^ k 97取大差別在於··成型 , . u聋32呈半球形的凹槽狀。藉由將夫廊 化的感光硬化膠20 (如圖猎由將未硬 並經由圖2C輿圖塗佈在成型模3〇,上，The optical element is used in place of the one shown in Fig. 1A to form a molding die having a light-expanding reference pattern 3, a molding die 30, and a prior art member of Fig. 2A. The second material of the molding die 30 of this A is 2|丨-the second material on the mold 30', and the difference of ^k 97 is that the molding is formed, and the u聋32 has a hemispherical groove shape. Photosensitive hardened glue 20 by the slab of the shovel (as shown in the shovel, it will not be hard and will be applied to the forming mold 3〇 by means of Fig. 2C).
4所示之所不之流程後，即可製作出如圖 之，其厚度約介於Μ酿至〇.2酿 狀，且古Μ此光學疋件6〇,上之第一微結構61，呈半球 之撼^报擴散光線的效果，故可取代背光模組100中 供堂<番142(如^ 1Α所示）。而且，由於擴散膜142 仍需汉置基板’故光學元件6〇，具有較薄的厚度與較 低的材料成本。在圖4中，第一微結構61，彼此之間是呈 等間格排歹Η旦本領域具有通常知識者也將第一微結構61， 作亂數排列。 除了圖2Α至圖2Ε所介紹的光學元件的製造方法 外，以下將介紹本發明之另一實施例的光學元件之製造 流程。請參照圖5,圖5中繪示出光學元件的製造設備，此 製造設備包括：一容器71、一傳輸帶釋放輪72、一滾 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 内裝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20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 .201019004 74所收納。此傳輸帶77是由不會與感光硬化膠2〇間產 生架橋作用的透明材質所構成，例如：拉伸聚丙歸。 在本實施例中，一第一光源76a、一第二光源76b 與一第二光源76c為紫外光燈。其中，第二光源7仙 疋用以對感光硬化膠20作初步地硬化。感光硬化膠2〇經 過初步硬化後，會受到滾輪73的滾壓，滾輪73的表面73a 上具有壓印圖案（未繪示）。當滾輪73滾壓過感光硬化膠 20後，壓印圖案會轉印至感光硬化膠2〇上，以形成多個第 一微結構61。在本實施例中，第一微結構61為呈菱鏡狀的 凸塊，故壓印圖案應是由多個呈菱鏡狀的凹槽所組成。 在滚輪73對感光硬化膠20進行滚壓的同時，第一光源 76a與第三光源76c皆會對感光硬化膠20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 者也可依據情況調整光源的數量，例如只設置一個光源，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20間產生架橋 作用的透明材質所構成，故硬化後的感光硬化膠2〇可與傳 輸帶77進行分離，而使感光硬化膠20捲繞在產品收納 輪75上。之後，可將捲繞在產品收納輪75上的感光硬 化膠20取下，並對其進行切割，以形成如2E所示之光學元 件60。 另外’請參照圖6，圖6所繪示為光學元件的另一 種製造設備。此製造設備與圖5之製造設備的最大不 201019004 :硬化後e的感光硬化膠20並非是被收納在產品 5上，而疋被傳送到—玫置平台75,上，以進 仃後續的製程（例如··切割）。 備與本|1^常?"__細6柄之製程設 甚蔣、岁认調整卩可做出其他種類的光學元件。例如，After the process shown in Fig. 4, it can be made as shown in the figure, the thickness of which is about brewing to 〇.2, and the optical structure of the ancient 疋6〇, the first microstructure 61, In the case of a hemisphere, the effect of diffusing light is reported, so that it can be replaced by the backlight module 100 (shown as ^1Α). Moreover, since the diffusion film 142 still requires the substrate, the optical element 6 has a thinner thickness and a lower material cost. In Fig. 4, the first microstructures 61 are arranged in an equal interval between each other. Those having ordinary knowledge in the field also arrange the first microstructures 61 in a random number. In addition to the manufacturing method of the optical element described in Figs. 2A to 2B, the manufacturing process of the optical element of another embodiment of the present invention will be described below. Please refer to FIG. 5 , which illustrates a manufacturing apparatus of an optical component. The manufacturing apparatus includes: a container 71 , a belt release pulley 72 , a roller 73 , a belt storage wheel 74 , 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 adhesive 20, and by controlling the outflow amount, the deposition of the photosensitive hardening adhesive 20 can be controlled. The thickness on the conveyor belt 77. The belt 77 is released from the belt release wheel 72 and housed by the belt storage wheel .201019004 74. This belt 77 is made of a transparent material which does not cause bridging with the photosensitive hardener 2, for example, stretched polypropylene. In this embodiment, a first light source 76a, a second light source 76b and a second light source 76c are ultraviolet lamps. Wherein, the second light source 7 is used for preliminary hardening of the photosensitive hardener 20. After the preliminary hardening of the photosensitive hardened rubber 2, it is rolled by the roller 73, and the surface 73a of the roller 73 has an embossed pattern (not shown). When the roller 73 is rolled over the photosensitive hardener 20, the embossed pattern is transferred onto the photosensitive hardener 2 to form a plurality of first microstructures 61. In the present embodiment, the first microstructure 61 is a prism-shaped bump, so the embossed pattern should be composed of a plurality of grooves having a prism shape. 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 harden 20, which further hardens the photosensitive hardener 20. In the present embodiment, there are three light sources, but those skilled in the art can also adjust the number of light sources depending on the situation, for example, only one light source or more than three light sources. Since the transport belt 77 is composed of a transparent material that does not bridge the photosensitive hardener 20, the hardened photosensitive hardener 2 can be separated from the transport belt 77, and the photosensitive hardener 20 is wound around the product. The storage wheel 75 is mounted. Thereafter, the photosensitive squeegee 20 wound on the product storage wheel 75 can be removed and cut to form an optical element 60 as shown in Fig. 2E. In addition, please refer to Fig. 6, which is shown as another manufacturing apparatus of the optical element. The maximum non-201019004 of the manufacturing equipment and the manufacturing apparatus of FIG. 5: the hardened adhesive 20 of the hardened e is not stored on the product 5, and the crucible is transferred to the galley platform 75 for subsequent processing. (eg · cutting). Preparation and the ||1^常?"__细6柄's process design Very Jiang, the old adjustment adjustment can make other types of optical components. E.g,
如圖二73上㈣印圖案改為半球狀的凹槽，便可製作出 如圖4所示之光學元件6G，。 W m m 菸明^發明以實施例說明如上’然其並非用以限定本 L由主張之專利權利範圍。其專利保護㈣當視後 通專利範圍及其等同領域而定。凡本領域具有 :識者，在不脫離本專利精神或範圍内，所作之 飾，均屬於本發明所揭示精神下所完成之等 〆°又《+，且應包含在下述之申請專利範圍内。 【圖式簡單說明】 圖1八所％示為-習知的背光模組。 圖1’示為圖1A之增亮膜的前視圖。 圖 2 A $ _ π 製造漭I圖圖2Ε所繪示為本發明之實施例的光學元件之 =3所纷示為用於製作具光擴散功能的光學元件之成型模。 所緣示為本發明之另一實施例的光學元件。 圖中所冷示為光學元件的製造設備。 所冷示為光學元件的另一種製造設備。 201019004 【主要元件符號說明】 <先前技術> 100 :背光模組 110 :冷陰極螢光燈管 120 :反射罩 130 :擴散板 • 142 :擴散膜 144 :增亮膜 144a :基板 144b :結構層 144c :入射面 144d :出射面 <本發明> ❿ 20 :感光硬化膠 30、30’ ：成型模 31 :表面 32、32’ ：第二微結構 40 :壓板 50 :光源 60、60’ ：光學元件 12 201019004 61’ ：第一微結構 入射面 出射面 容器 傳輸帶釋放輪 >衰輪 傳輸帶收納輪 產品收納輪 :放置平台 :第一光源 :第二光源 :第三光源 傳輸帶 辅助輪 閥門As shown in Fig. 2, 73, the printed pattern is changed to a hemispherical groove, and the optical element 6G as shown in Fig. 4 can be produced. The invention is described by way of example, and is not intended to limit the scope of the patent rights claimed herein. Its patent protection (4) depends on the scope of the patent and its equivalent. All those skilled in the art, which are within the spirit and scope of the present invention, are all subject to the spirit of the present invention and are also included in the following claims. [Simple description of the figure] Figure VIII is shown as a conventional backlight module. Figure 1' is a front elevational view of the brightness enhancing film of Figure 1A. Fig. 2 A _ π Manufacture 图 I Fig. 2A shows an optical element of the embodiment of the present invention, which is shown as a molding die for producing an optical element having a light diffusing function. The optical element is shown as another embodiment of the present invention. The device shown in the figure is shown as an optical component. Another manufacturing device that is shown as an optical component. 201019004 [Description of main component symbols] <Prior Art> 100: Backlight module 110: Cold cathode fluorescent lamp 120: Reflector 130: Diffuser plate 142: Diffusion film 144: Brightening film 144a: Substrate 144b: Structure Layer 144c: incident surface 144d: exit surface <present invention> ❿ 20: photosensitive hardener 30, 30': molding die 31: surface 32, 32': second microstructure 40: platen 50: light source 60, 60' :optical element 12 201019004 61' : first microstructured entrance surface exit surface container conveyor belt release wheel > fade wheel conveyor belt storage wheel product storage wheel: placement platform: first light source: second light source: third light source transmission belt assist Wheel valve