M385014 五、新型說明： 【新型所屬之技術領域】 本創作係針對背光照明單元當中的光學結構之結構 改良，例如導光板、擴散板等，旨在楗供一種確保光學結 構之出光品質之結構改良。 【先前技術】 "導光板的主要功能是藉由光折射原理將光源入射的 平行光轉換成平面垂直光，且—般亦會於導光板上設置複 數調，結構’如圓形或方形等圖案’當光源進人導光板而 碰到运，調光結構時，反射光會往所需的方向擴散，因此 利用疏密、大小不同的調光結構設計，可使導光板面均勻 發光。導光板之功用在於引導光的散射或全反射方向，一 方面可用來提高輝度’另一方面也可確保離開導光板之光 線党度的均勻性，因此導光板為當前LCD顯示面板中的重 要儿件’特別是背域組所不可或缺的元件，而且導光板 之設計與製造攸關背級組的光學設計以及輝度、均細产 的控制為背光模組廠商最主要的技術與成本所在。 一般導光板或擴散板等係為一種光學結構，而該光學 結構之成形加工原理不外乎是將_原料加熱到可塑= 狀態且成為熔融塑料，而使之易於彎曲或變形，再加壓使 其充填到模具内，且再經冷卻凝因為預定之形狀後而取 出，而該塑膠原料在成形加工時需經歷可塑化、充填與凝 固等過程，故業者係利用該原理，且針對各製品之性質而 M385014 研發出不同之加工方法，一般有澆鑄成形法、壓縮成形 法、射出成形法及射出壓縮成形法等。 不論是何種成形法，其成形最後再進行拆模、去毛 邊、裁切、品管及包裝等後段製程，則完成導光板10之 成品；如第一圖所示，而一般導光板10為要求較佳之光 學效果，通常係於導光板10側邊形成有複數微結構11， 藉由各微結構11來改變光行徑路徑，以增加輝度或光線 強度，但進行去毛邊時，容易於各微結構上、下表面111、 112形成刮痕113，如第二圖所示，各到痕113會改變光 學效果，無法達到原有導光板之光學需求，而判定為不良 品。 【新型内容】 有鑑於此，本創作即在提供一種可確保光學結構出光 品質之結構改良。 爲達上述目的，本創作之光學結構至少一側邊設有複 數微結構，其中，該側邊係沿微結構至少一表面延伸有一 凸出部，藉由該凸出部可保護各微結構，去毛邊時，可避 免於各微結構上形成刮痕，以確保光學結構之出光品質。 M385014 【實施方式] 本創作「光學結構改良」，其光學結構如第三圖所示 可以導光板為例，其光學結構2〇至少一侧邊設有複數微結 構30，該側邊係沿微結構3〇至少一表面延伸有一凸出部 201’如圖所示之實施例中，該側邊至少包含有入光側21、 一與入光側21相鄰之底側22以及與底側22相對之出光側 23，各微結構3〇係設於入光側21上，而該凸出部201可由 側邊沿微結構上表面31延伸而成，亦即該凸出部2 〇 1係设 •於入光側21與出光側23相鄰處。 如第四圖之第二實施例所示，該凸出部201係由側邊 沿微結構下表面32延伸而成，亦即該凸出部201係設於入 -光侧21與底側22相鄰處；當然，亦可如第五圖之第三實施 .例所示，該凸出部201係由側邊沿微結耩上表面31及下表 面32延伸而成，亦即該凸出部2〇1係設於入光側21與出光 侧23相鄰處以及入光侧21與底侧22相鄰處，請同時參照第 六圖所示’該凸出部201之長度（L)係大於微結構30之高度 # (H)，亦即L>H ;而該凸出部之長度亦可等於微結構之高 -度。 本創作之光學結構可以為應用於背光模組中之導光 板或擴散板等’而本創作微結構上表面或下表面可藉由該 凸出部具有隔絕保護之作用，以當進行去毛邊時，^避= 於各微結構上、下表面形成刮痕，不會影響各微結構所產 生之光學效果，以綠保光學結構之出光品質，並確 結構之良率。 + M385014 如上所述，本創作提供另一較佳可行的光學結構改 良，爰依法提呈新型專利之申請；惟，以上之實施說明及 圖式所示，係本創作較佳實施例者，並非以此侷限本創 作，是以，舉凡與本創作之構造、裝置、特徵等近似、雷 同者，均應屬本創作之創設目的及申請專利範圍之内。 【圖式簡單說明】 第一圖係為習用導光板之結構立體圖。 第二圖係為習用導光板之結構示意圖。 第三圖係為本創作中光學結構第一實施例之結構立體圖。 第四圖係為本創作中光學結構第二實施例之結構立體圖。 第五圖係為本創作中光學結構第三實施例之結構立體圖。 第六圖係為本創作中光學結構第三實施例之結構示意圖。 【主要元件代表符號說明】 導光板10 入光側21 微結構11 底側22 上表面111 出光側23 下表面112 微結構30 到痕113 上表面31 光學結構20 下表面32 凸出部201M385014 V. New Description: [New Technology Field] This creation is aimed at improving the structure of optical structures in backlight units, such as light guides, diffusers, etc., to provide a structural improvement to ensure the light quality of optical structures. . [Prior Art] " The main function of the light guide plate is to convert the parallel light incident from the light source into plane vertical light by the principle of light refraction, and generally also set a complex number on the light guide plate, such as a circle or a square. When the light source enters the light guide plate and hits the light guide structure, the reflected light will diffuse in the desired direction. Therefore, the light guide plate surface can be uniformly illuminated by using a dimming and different size dimming structure design. The function of the light guide plate is to guide the scattering or total reflection direction of the light, on the one hand, it can be used to improve the brightness, and on the other hand, it can ensure the uniformity of the light party leaving the light guide plate, so the light guide plate is an important element in the current LCD display panel. The components are especially indispensable for the back-domain group, and the design and manufacture of the light guide plate and the optical design of the back-stage group and the control of the brightness and the fine production are the most important technologies and costs of the backlight module manufacturer. Generally, a light guide plate or a diffuser plate is an optical structure, and the forming process of the optical structure is nothing more than heating the raw material to a plastic state and becoming a molten plastic, so that it is easy to bend or deform, and then pressurizing The utility model is filled into the mold, and then cooled and coagulated and taken out because of the predetermined shape, and the plastic raw material needs to undergo plasticization, filling and solidification processes during the forming process, so the manufacturer uses the principle and is directed to each product. M385014 has developed different processing methods, and generally has a casting molding method, a compression molding method, an injection molding method, and an injection compression molding method. Regardless of the forming method, the final stage of the mold removal, deburring, cutting, quality control and packaging is completed, and the finished product of the light guide plate 10 is completed; as shown in the first figure, the general light guide plate 10 is A preferred optical effect is required. Generally, a plurality of microstructures 11 are formed on the side of the light guide plate 10, and the light path path is changed by the microstructures 11 to increase the brightness or the light intensity, but it is easy to be used when deburring. The upper and lower surfaces 111 and 112 are formed with scratches 113. As shown in the second figure, each of the marks 113 changes the optical effect, and the optical requirements of the original light guide plate cannot be obtained, and it is determined to be a defective product. [New content] In view of this, this creation is to provide a structural improvement that ensures the light quality of the optical structure. In order to achieve the above object, the optical structure of the present invention is provided with a plurality of microstructures on at least one side thereof, wherein the side edges extend along at least one surface of the microstructure to have a protrusion, and the protrusions can protect the microstructures. When the burrs are removed, scratches can be prevented from forming on the microstructures to ensure the light quality of the optical structure. M385014 [Embodiment] The optical structure of the present invention is as follows. The optical structure of the optical structure is as shown in the third figure. The optical structure 2 is provided with at least one side of the plurality of microstructures 30, and the side edges are along the micro The structure 3 has at least one surface extending with a protrusion 201'. In the embodiment shown, the side comprises at least a light-incident side 21, a bottom side 22 adjacent to the light-incident side 21, and a bottom side 22 Opposite the light-emitting side 23, each of the microstructures 3 is disposed on the light-incident side 21, and the protrusions 201 can be formed by extending the side edges along the microstructure upper surface 31, that is, the protrusions 2 〇1 are provided. • Adjacent to the light entrance side 21 and the light exit side 23. As shown in the second embodiment of the fourth figure, the protruding portion 201 is formed by extending the side edge along the microstructure lower surface 32, that is, the protruding portion 201 is disposed on the in-light side 21 and the bottom side 22 Adjacent; of course, as shown in the third embodiment of the fifth figure, the protrusion 201 is formed by extending the side edge of the micro-junction upper surface 31 and the lower surface 32, that is, the protrusion The portion 2〇1 is disposed adjacent to the light-incident side 21 and the light-emitting side 23, and the light-incident side 21 is adjacent to the bottom side 22, and the length (L) of the protruding portion 201 is also referred to in the sixth figure. The height is greater than the height #(H) of the microstructure 30, that is, L>H; and the length of the protrusion may also be equal to the height-degree of the microstructure. The optical structure of the present invention can be applied to a light guide plate or a diffusion plate in a backlight module, and the upper surface or the lower surface of the created microstructure can be isolated and protected by the protruding portion, when performing deburring , ^ Avoid = Scratches on the upper and lower surfaces of each microstructure, does not affect the optical effect produced by each microstructure, the quality of the light structure of the green security optical structure, and the yield of the structure. + M385014 As mentioned above, this creation provides another preferred and feasible optical structural improvement, and the application for a new patent is proposed in accordance with the law; however, the above embodiments and drawings show that the preferred embodiment of the present invention is not This limitation of the creation is that the similarity and similarity to the structure, installation, and features of the creation should be within the creation purpose and patent application scope of the creation. [Simple description of the drawing] The first figure is a structural perspective view of a conventional light guide plate. The second figure is a schematic structural view of a conventional light guide plate. The third figure is a perspective view of the structure of the first embodiment of the optical structure in the present creation. The fourth figure is a perspective view of the structure of the second embodiment of the optical structure in the present creation. The fifth figure is a perspective view of the structure of the third embodiment of the optical structure in the present creation. The sixth figure is a schematic structural view of the third embodiment of the optical structure in the present creation. [Description of main component representative symbols] Light guide plate 10 light entrance side 21 microstructure 11 bottom side 22 upper surface 111 light exit side 23 lower surface 112 microstructure 30 to mark 113 upper surface 31 optical structure 20 lower surface 32 projection 201