M375892 五、新型說明： 【新型所屬之技術領域】 本創作是提供一種雙面出光之導光板，主要是採用單一導光 板來達到兩面出光效果之設計者。 【先前技術】 按，一般導光板之結構為利用經導通電源後的燈源（1〇)〔該燈源 鲁（10)可採冷陰極管（CCFL)或發光二極體（LED)之具備亮度高及 壽命長的發光源〕，其經反射罩（2〇)所反射發出的線形光源進入 導光板(30)，該線形光源會反覆在導光板(3〇)上方與下方作全反 •射與散亂，而未反射露出的光線則以反射片（40)再予以反射回導 光板(30)中再使用，當上方全反射條件受到破壞時，就會從導光 板(30)轉化線形光源分佈成均輝的面光源，再經擴散片（5〇)的均 光作用與菱鏡片（60)的集光作用，進而提高光源的亮度與均齊 螓度，並經保護膜(70)呈單面出光，擴散射出分布於發光區域内， 如第一圖所示。 其中，該導光板(30) (LG，Light guide)是利用射出成型的 方法將丙烯〔材質上除了丙烯外，尚可採用聚碳酸酯（pc)料甚 至玻璃’或其他光傳導介質〕M製成表面光滑的板塊，然後在壓 克力平板上用高反射率且不吸光的材料，在板“一面”用網版印 刷印上圓形或方形的網點（301)〔該網點（3〇1)的疏密、大小不一 才能保證光往各個方向反射的機率大致相同〕，利用網點（3〇1)來 引發散亂或是擴散反射，藉此使光線能均勻分佈在導光板(3〇)表 3M375892 V. New Description: [New Technology Field] This creation is to provide a double-sided light guide plate, which is mainly designed by a single light guide plate to achieve the light output effect on both sides. [Prior Art] According to the general structure of the light guide plate, the light source (1〇) after the power supply is turned on (the light source Lu (10) can be used for the cold cathode tube (CCFL) or the light emitting diode (LED) The light source with high brightness and long life] enters the light guide plate (30) through the linear light source reflected by the reflector (2〇), and the linear light source will repeatedly over and over the light guide plate (3〇). The light that is emitted and scattered, but not reflected, is reflected back to the light guide plate (30) by the reflection sheet (40), and is converted into a linear shape from the light guide plate (30) when the upper total reflection condition is broken. The light source is distributed into a uniform surface light source, and then the light-sharing action of the diffusion sheet (5〇) and the collecting action of the diamond lens (60), thereby improving the brightness and uniformity of the light source, and passing through the protective film (70) The light is emitted on one side, and the diffusion is distributed in the light-emitting area, as shown in the first figure. Among them, the light guide plate (30) (LG, Light guide) is a method of injection molding to produce propylene (in addition to propylene, polycarbonate (pc) material or even glass ' or other light-conducting medium) can be used. Form a smooth surface, then use a highly reflective and non-absorbent material on the acrylic plate to print a circular or square dot (301) on the "one side" of the plate. [The dot (3〇1) The density and size of the light can ensure that the probability of light reflection in all directions is about the same.] Use the dot (3〇1) to induce scattered or diffuse reflection, so that the light can be evenly distributed on the light guide plate (3〇) )table 3
面。，而導光板(3〇)其製作方法除上狀“以射蚊型方法壓製出 板塊外’還可用現成壓克力板，在板“-面”採以印刷方式、 或是雷射離财式等將触加去。 X 另外’為因應目前商品而衍生的雙面出光之導光板，如第二 『所不，其係、將上述單面出光之導光板(30)直接採兩組予以背對 身方式組合’雖具備了兩面出光的效果但卻因其構件繁多而 產生了構件成本與組立成本大幅提高，且組合後的雙面出光之導 光板亦顯得厚大，實不符合齡之㈣化要求。 【新型内容】 今，本創作者有鑑於目前該雙面出光之導光板其是『採用兩 面導光板’達到兩面出光效果』其所存在的缺失，為加以研發設 計出『採用單-導光板’達到兩面出光效果』，俾使該導光 透過簡易的構件’即可達到確_雙面出光效果。 本創作之主要目的’是在單一塊導光板上，其板“兩面，，採 用網點或其他光學微結構，姻觸_形狀不同或光學微結構 的不同刀#其所造成的不同破壞性，而將光線作交錯形態從導 光板内部反射出，以之達到光線在導光板兩面均勻出光的目的。 【實施方式】 ，本創作設計的雙面出光之導光板（參第三圖），其為利用經 導通電源後的單-燈源⑴〔該燈源⑴可採冷陰極管（OTL)或 發光二極體（LED)之具備亮度高及壽命長的發光源〕，其經反射 罩⑵所反射發出的光線進入導光板⑶，該導光板⑶是在板的 兩面”設有網點⑻或其他光學微結構，利用該網點⑻的形 狀不同或光學微結構的不时佈，其所造成的關破壞性，而將 M375892 ··.··. .. . , · · · 、 作交錯形態從導光板(3)内部射出，以之達到採用單一導光板 (3)即可呈現兩面出光的效果。 【圖式簡單說明】 第一圖：習用單面出光之導光板其示意圖. 第二圖：習用雙面出光之導光板其示意圖 第三圖：本創作雙面出光之導光板其示意圖 【主要元件符號說明】 Ί 〔習用〕 (10)燈源 (20)反射罩 (30)導光板 (301)網點 W0)反射片 (50)擴散片 (60)菱鏡片 〔本創作〕 (70)保護膜 (1)燈源 (2)反射罩 (3)導光板 (31)網點surface. The light guide plate (3〇) can be made by using an off-the-shelf acrylic plate in addition to the upper shape, and the surface of the plate can be printed or laser-extracted. X and so on will be touched. X In addition, 'the light guide plate for double-sided light emitted in response to the current product, as the second is not, the system directly adopts the light guide plate (30) for single-sided light extraction. The combination of the back-to-body method has the effect of two-sided light output, but the component cost and the assembly cost are greatly improved due to the large number of components, and the combined double-sided light guide plate is also thick, which is not in accordance with the age. (IV) Requirements. [New content] Today, the creator has the shortcomings of the double-sided light guide plate, which uses the two-sided light guide plate to achieve the two-sided light-emitting effect. - The light guide plate 'reaches the light on both sides', so that the light guide can pass through the simple component' to achieve the double-sided light-emitting effect. The main purpose of the creation is to use a single-piece light guide plate with two sides, Adopting outlets Other optical microstructures, different shapes or different optical knives of the different knives, which cause different destructive properties, and reflect the light in a staggered manner from the inside of the light guide plate to achieve uniform light emission on both sides of the light guide plate. purpose. [Embodiment] The double-sided light guide plate (refer to the third figure) designed by the present invention is a single-light source (1) after being turned on (the light source (1) can be cooled cold cathode tube (OTL) or illuminating The diode (LED) has a high brightness and long life light source, and the light reflected by the reflector (2) enters the light guide plate (3), and the light guide plate (3) is provided with dots (8) or other optics on both sides of the plate. The microstructure, using the different shapes of the dots (8) or the time-dependent cloth of the optical microstructure, which causes the destructiveness of the mesh, and the M375892 ·····. . . . , · · · ·, staggered form from the light guide plate ( 3) Internal injection, so that the effect of two-sided light output can be achieved by using a single light guide plate (3). [Simple description of the figure] The first picture: a schematic diagram of a light guide plate with a single-sided light output. The second picture: the two-sided use The light guide plate of the light is shown in the third figure: the schematic diagram of the light guide plate with double-sided light output [main component symbol description] 〔 [used] (10) light source (20) reflector (30) light guide plate (301) dot W0 Reflective sheet (50) diffuser (60) diamond lens [this creation (70) the protective film (1) the light source (2) reflector (3) a light guide plate (31) outlets