M440447 五、新型說明： 【新型所屬之技術領域】 且特別是有關於一種 本新型是有關於一種導光元件 導光板與背光模組。 【先前技術】 隨著發光二極體(LED)等點光源的快速發展 丨之光源型態逐漸由線光源轉變成點光源，例如由傳统：： $的冷陰極燈管改成點狀之發光二極體。請參照第盘 二㈣之裝置的上視圖、=二=導光板與發先 112。 觀七先-極體108與遮蔽物 士背光模紕100中’發光二極體108設置在 且朝導光板m之人光面1()6發射光 no。遮蔽物m則覆蓋住發光二極體1〇8與導光板1〇= 入光側的部分出光面刚，亦即覆蓋住出光面m的非可 視區m上。發光二極體1〇8所發出之光ιι〇經由入光面 ⑽進入導光板⑻’經導光板1〇2的導引後，從導光板 102之出光面丨04射出導光板1〇2。 »月蒼知第3圖’其係綠示另一種傳統背光模組之側視 賴組1GGa之㈣錢上與上狀背光模組 的架構相同’二者之差異在於背光模組lGGa之導光板 l〇2a包含漸縮部12〇與平板部】22。漸縮部〗2〇之厚度從 入光面106朝平板部122的方向逐漸縮減。在背光模組⑽a 4 M440447 中，除了入光面106之頂邊外，導光板102a之出光面1〇4a 與遮蔽物112之間的距離增加。 然而，如第2圖與第3圖所示，若遮蔽物！ι2之覆蓋 範圍太短，極容易在背光模組1〇〇或100a之入光側的非可 視區118產生外觀漏光現象。而由於發光二極體之指 向性高，因此背光模組1〇〇或1〇〇a之非可視區ιΐ8之漏光 的亮暗不均情泥相當嚴重。如此一來，使用者之眼睛n4 2到的背光模組100或10〇3入光側的外觀亮度均勻度差， 常1亮點(Hot SP〇t)116產生，如第4圖所示。故，^統背 光模組100與l00a之外觀亮度分布不均，嚴重影響背光模 組100與l〇〇a之視覺品味。 、 【新型内容】 因此，本新型之一態樣就是在提供一種導光板也背光 f組’其中導光板鄰近入光面且縱貫出光面的微結構區内 政布有許多點狀微結構。由於這些點狀微結構可霧化反 回導光板之出光面的光，因此可大幅改善指向性高之 源所造成之喷射現象。 本新型之另一態樣是在提供一種背光模組 勻度的出光。 一负同均 根據本新型之上述目的，提出—種導光板。此 包含一主體以及複數個點狀微結構。主體包含一入板 -出光面、一反射面、以及相對之一第一側面盥 : :。出光面與反射面相對，第_側面、入光面和第 勺接合在出光面與反射面之間，且人光面介側· 5 料40447 之間。出光面包含一微結構區從第-側面延伸至 弟一側面，且微結構區與入光 微結構完全料於微結構W㈣。—狀 依據本新型 之 板 實施例，上述之主體係一均勻厚度平 以及型實施例，上述之主體包含—漸縮部 卜漸縮部具有相對之第一端與第二端，i中 光面二端之厚度。平板部由第二端沿著入 尤面之去線延佧，平板部之厚.度等同於第 一例子中，前述之微結構區位於平板部上D A在 面延Γίΐ新2又一實施例’上述之微結構區從第-側 节第一側面之一方向垂直入光面之法線。 依據本新型之再一實施例，上述 個微結構設置妓射面±。 t料板更包含讀 依據本新型之再一實施例，上述之 一嘴砂點結H㈣點結構。 ‘讀也、、D構係 或小新型之再—實施例，上述之距離大於《且等於 根據本新型之上述目的，另提出一種 ^組包含—導光板、複數個光源以及-遮蔽件。導光二 體以及複數個點狀微結構。主體包含-入光面、 面相對，第一側面、入光面和第= 兮第1丨、面/、反射面之間，且入光面介於第-側面與 j面之問。出光面包含—微結構區從第-側面延伸 6 M440447 至第二側面，且微結構區與入光面相隔一距離。前述之點 狀微結構完全分布於微結構區内。這些光源鄰設於入光 面。遮蔽件則設於前述之光源、入光面與出光面鄰近於入 光面之部分的上方，以將光源所射出之光反射至出光面。 依據本新型之一實施例，上述之主體係一均勻厚度平 板0 依據本新型之另一實施例，上述之主體包含一漸縮部 以及一平板部。漸縮部具有相對之第一端與第二端，其中 鲁第一端之厚度大於第二端之厚度。平板部由第二端沿著入 光面之法線延伸，平板部之厚度等同於第二端之厚度。在 一例子中，前述之微結構區位於平板部上。 依據本新型之又一實施例，上述之微結構區從第一側 面延伸至第二側面之一方向垂直入光面之法線。 依據本新型之再一實施例，上述之導光板更包含複數 個微結構設置在反射面上。 依據本新型之再一實施例，上述之每一點狀微結構係 β —喷砂點結構或一雷射點結構。 依據本新型之再一實施例，上述之距離大於0且等於 或小於20mm。 依據本新型之再一實施例，上述之光源為複數個發光 二極體。 【實施方式】 請參照第5圖，其係繪示依照本新型之一實施方式的 一種背光模組之透視圖。在本實施方式中，背光模組200 7 M440447 主要包含導光板206、數個光源218與遮蔽件216。導光板 206包含主體202與數個點狀微結構2〇4。在一實施例中， 主體202可為具有均勻厚度之平板。主體搬可包含入光 面、出光面21〇、反射面212、以及第一側面犯 二側面 244。 如第5圖所示，在主體2〇2中，出光面21〇與反射面 212位於主體2〇2之相對二側。此外，第—側面如、入光 2 20:和第二相㈣244依序與出光面21〇之鄰接的三邊接 曰’亦即入光面208介於第一側面242與第二側面⑽之 f二且’第—側面242、人光面應*第二側面244均 接e在出光面210與反射面212之間。主體2〇2之入光面 208可為鏡面或具有微結構之表面。 主體202之出光面21G包含微結構區22 =:入光面咖相隔一段距離232。在一實施;構 ΚΙ 222ί 或小於2〇_。此外，此微 、.-〇構£ 222攸出光面21〇與第一側面242相接 到出光面210與第二側® 244相接的一邊。在一實 微結觀功μ絲加上從第_側面242 ==’ :面244的方向234可與主體-之入光面2〇二 光板2〇6中，點狀微結構204均勻散布右屮止 21〇的整個微結構區222 _ 在出先! ^ ^ 22内。此外，廷些點狀微社槿9r 可為霧面點狀的擴散型紝M， 俽、'。構2( . L 笊欣1、、、口構，且亚非角面結構。在—此4 二:’點狀微結構2〇4可例如利用喷砂方 所形成之切 1 料或雷射縣構。 5 8 ινι^4υ44/ ,,請再次參照第5圖，光源218設置在導光板206之入 光面208旁，且鄰近於入光面2〇8。光源218之出光面 較佳係與導光板206之入光面2〇8相面對，因此光源218 可朝入光面208發射光。在一實施例中，光源218可為發 光二極體等點光源。 如第5圖所示，遮蔽件216可從光源218上方朝導光 板206之主體202的出光面21〇上方延伸而至少遮罩在 光源218之出光面22〇、主體2〇2之入光面施以及出光 面210鄰近於入光面208之部分的上方。在一實施例中， 遮蔽件216可遮罩住部分之微結構區222。遮蔽件216可 具：反射能力’而可將光源218所發出之光中射向遮蔽件 216的部分反射至主體2〇2之出光面21〇。 圍車2於ΓίΓ?體等點光源出光的指向性高’且出光範 ^ ^主體202之出光面21〇的整個微結構區 面2二政t點狀微結構2〇4’可打散遮蔽件216反射至出光 點光源之古/ A I ’化些點狀微結構204可有效霧化 你之间“賴造成之喷射現象。藉此，可使導光板 勻化，進—步使背光模組 光面的党度更加均勻。 ^ 在一些實施㈣，根據背光模 能，導光板206更可選擇性扯勺八^ 戶斤而之先學性 _ 、擇性地包含數個微結構214。如第5 ==rr4可設置在導光板2。6之主體二 的反射面212上。微結構2]4 槽結構與R型切槽H去^條狀結構’例如V型切 太斩…： 為錐狀結構或錐狀凹槽。 本新生之導光板的主體亦可為非具有均勻厚度的平 9 M440447 板。請參照第6圖，其係繪示依照本新型之另一實施方式 的一種背光模組之透視圖。此實施方式之背光模組200a的 架構大致上與上述實施方式之背光模組200的架構相同， 二者的差異在於：背光模組200a之導光板206a的主體202a 並非具均勻厚度的平板。 在背光模組200a中，導光板206a之主體202a包含漸 縮部226與平板部224。漸縮部226具有相對之第一端228 與第二端230。其中，漸縮部226之厚度從第一端228漸 鲁減至第二端230，亦即漸縮部226之第一端228的厚度大 於第二端230的厚度。此外，平板部224由漸縮部226之 第二端230沿著入光面208之法線延伸。平板部224之厚 度與漸縮部226之第二端230的厚度相同。在本實施方式 中，微結構區222設於部分之平板部224上，且並未延伸 至漸縮部226上。 由上述之實施方式可知，本新型之優點就是因為本新 型之導光板鄰近入光面且縱貫出光面的微結構區内散布有 鲁許多點狀微結構。由於這些點狀微結構可霧化反射回導光 板之出光面的光，因此可大幅改善指向性高之點光源所造 成之喷射現象。如此一來，可大幅改善背光模組之入光側 亮暗不均的現象，進而可提升背光模組之亮度均勻度。 雖然本新型已以實施方式揭露如上，然其並非用以限 定本新型，任何在此技術領域中具有通常知識者，在不脫 離本新型之精神和範圍内，當可作各種之更動與潤飾，因 此本新型之保護範圍當視後附之申請專利範圍所界定者為 準。 10 M440447 【圖式簡單說明】 妒f=本新型之上述和其他目的、特徵、優點與實施例 此更月顯易懂，所附圖式之說明如下： =1圖係繪示-種傳統背域組之導光板與 體之裝置的上視圖。 第2圖係繪示一種傳統背光模組之側視圖。M440447 V. New description: [New technical field] and especially related to one. The present invention relates to a light guiding element and a backlight module. [Prior Art] With the rapid development of point light sources such as light-emitting diodes (LEDs), the light source type gradually changes from a line source to a point source, for example, a conventional:: cold cathode lamp is changed into a point-like light. Diode. Please refer to the top view of the device of the second (4), = 2 = light guide plate and the first 112. The light-emitting diode 108 is disposed on the light-receiving diode 100 and is disposed on the light surface 1 () 6 of the light guide plate m to emit light no. The shield m covers the light-emitting diodes 1 and 8 and the light-emitting surface of the light-guide plate 1 〇 = the light-incident side, that is, the non-visible area m covering the light-emitting surface m. The light emitted from the light-emitting diodes 1 to 8 passes through the light-incident surface (10) and enters the light guide plate (8)' through the light guide plate 1A, and then exits the light guide plate 1〇2 from the light-emitting surface 丨04 of the light guide plate 102. »月苍知第3图'The green display of another traditional backlight module is the same as the upper backlight module. The difference between the two is the light guide plate of the backlight module lGGa. L〇2a includes a tapered portion 12〇 and a flat portion 22]. The thickness of the tapered portion is gradually reduced from the light incident surface 106 toward the flat plate portion 122. In the backlight module (10) a 4 M440447, the distance between the light-emitting surface 1〇4a of the light guide plate 102a and the shield 112 increases, except for the top edge of the light-incident surface 106. However, as shown in Figures 2 and 3, if the shelter! The coverage of ι2 is too short, and it is extremely easy to cause an appearance leakage phenomenon in the non-visible area 118 on the light incident side of the backlight module 1A or 100a. Since the directivity of the light-emitting diode is high, the light and dark unevenness of the light leakage of the non-visible area ι 8 of the backlight module 1〇〇 or 1〇〇a is quite serious. As a result, the appearance brightness uniformity of the backlight module 100 or the 10 〇3 entrance side of the user's eyes n4 2 is poor, and a normal 1 spot (Hot SP〇t) 116 is generated, as shown in FIG. 4 . Therefore, the brightness distribution of the appearance of the backlight module 100 and 100a is uneven, which seriously affects the visual taste of the backlight module 100 and l〇〇a. [New content] Therefore, one aspect of the present invention is to provide a light guide plate and a backlight group f. The light guide plate has a plurality of dot-like microstructures in the microstructure region adjacent to the light incident surface and extending through the light surface. Since these dot-like microstructures can atomize the light on the light-emitting surface of the light-returning light guide plate, the ejection phenomenon caused by the high directivity source can be greatly improved. Another aspect of the present invention is to provide a uniform illumination of a backlight module. A negative and uniform light According to the above object of the present invention, a light guide plate is proposed. This consists of a body and a plurality of point-like microstructures. The main body includes an entrance plate - a light exit surface, a reflective surface, and a first side surface 盥 : :. The light-emitting surface is opposite to the reflecting surface, and the first side surface, the light-incident surface and the first spoon are joined between the light-emitting surface and the reflecting surface, and the human light-side surface is between the four materials and 40447. The light exiting surface comprises a microstructured region extending from the first side to the side of the younger dimension, and the microstructured region and the incident light microstructure are completely derived from the microstructure W(d). In accordance with the embodiment of the present invention, the above-described main system is a uniform thickness and a type embodiment, wherein the main body includes a tapered portion having a first end and a second end opposite to each other, i The thickness of the two ends. The flat portion is extended by the second end along the line of the entrance surface, and the thickness of the flat portion is equivalent to that in the first example, the aforementioned microstructure area is located on the flat portion, and the DA is in the surface extension. The microstructure region described above is perpendicular to the normal of the light surface from one of the first sides of the first side section. According to still another embodiment of the present invention, the above microstructures are provided with a projection surface ±. The t-plate further includes a further embodiment according to the present invention, wherein the one of the nozzles has a H (four) point structure. In the case of the ‘reading, D, or small model—the above-described distance is greater than “and equal to the above object of the present invention, another group includes a light guide plate, a plurality of light sources, and a shield. The light guiding body and a plurality of point microstructures. The main body includes a light incident surface, a surface opposite surface, a first side surface, a light incident surface, and a first 丨, a surface, and a reflection surface, and the light incident surface is interposed between the first side surface and the j side surface. The light exit surface includes a microstructure region extending from the first side to the second side 6 M440447, and the microstructure region is spaced from the light incident surface by a distance. The aforementioned point-like microstructure is completely distributed in the microstructure region. These light sources are placed adjacent to the light incident surface. The shielding member is disposed above the light source, the light incident surface and the light exiting surface adjacent to the light incident surface to reflect the light emitted by the light source to the light emitting surface. According to an embodiment of the present invention, the main system described above has a uniform thickness flat plate. According to another embodiment of the present invention, the main body comprises a tapered portion and a flat portion. The tapered portion has opposite first and second ends, wherein the thickness of the first end of the Lu is greater than the thickness of the second end. The flat portion extends from the second end along the normal to the light incident surface, and the thickness of the flat portion is equal to the thickness of the second end. In one example, the aforementioned microstructure region is located on the flat portion. According to still another embodiment of the present invention, the microstructure region extends from the first side surface to a direction perpendicular to the normal of the light incident surface in one of the second side surfaces. According to still another embodiment of the present invention, the light guide plate further includes a plurality of microstructures disposed on the reflective surface. According to still another embodiment of the present invention, each of the point-like microstructures described above is a β-blasting point structure or a laser spot structure. According to still another embodiment of the present invention, the distance is greater than 0 and equal to or less than 20 mm. According to still another embodiment of the present invention, the light source is a plurality of light emitting diodes. [Embodiment] Please refer to FIG. 5, which is a perspective view of a backlight module according to an embodiment of the present invention. In the embodiment, the backlight module 200 7 M440447 mainly includes a light guide plate 206 , a plurality of light sources 218 and a shielding member 216 . The light guide plate 206 includes a body 202 and a plurality of dot-like microstructures 2〇4. In an embodiment, the body 202 can be a flat plate having a uniform thickness. The main body can include a light incident surface, a light exit surface 21, a reflective surface 212, and a first side surface 244. As shown in Fig. 5, in the main body 2〇2, the light-emitting surface 21〇 and the reflection surface 212 are located on opposite sides of the main body 2〇2. In addition, the first side, the incident light 2 20: and the second phase (four) 244 are sequentially adjacent to the three sides of the light emitting surface 21〇, that is, the light incident surface 208 is interposed between the first side 242 and the second side (10). f 2 and 'the first side 242, the human light surface should be * the second side 244 is connected between the light emitting surface 210 and the reflecting surface 212. The entrance face 208 of the body 2〇2 may be a mirrored or microstructured surface. The light exiting surface 21G of the main body 202 includes a microstructured area 22 =: the incoming light side is separated by a distance 232. In one implementation; construct 222 ί or less than 2 〇 _. In addition, the micro-, 〇 £ 222 攸 exit surface 21 相 is connected to the first side 242 to the side where the light-emitting surface 210 is in contact with the second side 244. In a real micro-junction μ wire plus from the _ side 242 ==': the direction 234 of the surface 244 can be combined with the body-into the light surface 2 〇 two light plates 2 〇 6, the dot-shaped microstructures 204 evenly spread right The entire microstructure area of 〇 21〇 is 222 _ in the first place! ^ ^ 22. In addition, some of the point-like micro-combination 9r can be a diffuse type of 纴M, 俽, '. Structure 2 ( . L 笊 1、 1, 1, mouth structure, and sub-aperture structure. In this - 4 2: 'point microstructure 2 〇 4 can be formed, for example, by using sandblasting to form a material or laser 5 8 ινι^4υ44/, please refer to FIG. 5 again, the light source 218 is disposed beside the light incident surface 208 of the light guide plate 206, and adjacent to the light incident surface 2〇8. The light emitting surface of the light source 218 is preferably The light source 218 can face the light incident surface 208 to emit light. In an embodiment, the light source 218 can be a point light source such as a light emitting diode. The shielding member 216 extends from above the light source 218 toward the light emitting surface 21 of the main body 202 of the light guide plate 206 to at least cover the light emitting surface 22 of the light source 218, the light incident surface of the main body 2〇2, and the light emitting surface 210. Adjacent to the portion of the light incident surface 208. In one embodiment, the shield 216 can cover a portion of the microstructure region 222. The shield member 216 can have a reflective capability to transmit light from the light source 218. The portion that is incident on the shielding member 216 is reflected to the light-emitting surface 21 of the main body 2〇2. The directivity of the light source of the surrounding light source of the vehicle 2 is high. The whole microstructure area of the light-emitting surface 21〇 of the main body 202 is 2, the t-shaped micro-structure 2〇4' can be scattered to the reflector 216 to reflect the light source of the light source / AI 'the point-like microstructure 204 can effectively atomize the spray phenomenon between you. By this, the light guide plate can be homogenized, and the party of the backlight module can be made more uniform. ^ In some implementations (4), according to the backlight mode energy The light guide plate 206 is more selectively plucked by the first _, and optionally includes a plurality of microstructures 214. For example, the fifth == rr4 can be set in the reflection of the body 2 of the light guide plate 2. On the surface 212. The microstructure 2] 4 groove structure and the R-shaped groove H to the strip-like structure 'for example, the V-shaped cut is too...: is a tapered structure or a tapered groove. The body of the new light guide plate can also be For a non-uniform thickness of the flat 9 M440447 board, please refer to FIG. 6 , which is a perspective view of a backlight module according to another embodiment of the present invention. The architecture of the backlight module 200 a of this embodiment is substantially The same as the architecture of the backlight module 200 of the above embodiment, the difference between the two is: the guide of the backlight module 200a The main body 202a of the board 206a is not a flat plate having a uniform thickness. In the backlight module 200a, the main body 202a of the light guide plate 206a includes a tapered portion 226 and a flat plate portion 224. The tapered portion 226 has opposite first ends 228 and second ends 230. The thickness of the tapered portion 226 is gradually reduced from the first end 228 to the second end 230, that is, the thickness of the first end 228 of the tapered portion 226 is greater than the thickness of the second end 230. Further, the flat portion 224 The second end 230 of the tapered portion 226 extends along the normal to the light incident surface 208. The thickness of the flat portion 224 is the same as the thickness of the second end 230 of the tapered portion 226. In the present embodiment, the microstructure region 222 is disposed on a portion of the flat portion 224 and does not extend over the tapered portion 226. It can be seen from the above embodiments that the new type of light guide plate is surrounded by a plurality of dot-like microstructures in the microstructure region adjacent to the light incident surface and extending through the light surface. Since these dot-like microstructures can atomize and reflect light back to the light-emitting surface of the light guide plate, the jet phenomenon caused by the point light source having high directivity can be greatly improved. In this way, the phenomenon of uneven brightness and darkness on the light incident side of the backlight module can be greatly improved, thereby improving the brightness uniformity of the backlight module. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this new type is subject to the definition of the scope of the patent application. 10 M440447 [Simple description of the drawings] 妒f= The above and other objects, features, advantages and embodiments of the present invention are more readily apparent. The description of the drawings is as follows: =1 Figure shows a traditional back A top view of the light guide and body device of the domain group. Figure 2 is a side view showing a conventional backlight module.
第3圖係繪示另一種傳統背光模組之側視圖。 第4圖係繪示—種傳統背光模組之人光側的外觀亮度 第5 H躲不依照本新型之—實施方式的—種背光模 組之透視圖。 一實施方式的一種背光 第6圖係繪示依照本新型之另 模組之透視圖。 100a :背光模組 102a :導光板 l〇4a :出光面 108 :發光二極體 112 :遮蔽物 116 :亮點 120 :漸縮部 200 :背光模組 202 :主體 鲁【主要元件符號說明】 ·背光模組 102:導光板 104 :出光面 106 .入光面 110 :光 114 :眼睛 118 :非可視區 122 ·平板部 200a :背光模組 M440447 202a :主體 206 .導光板 208 :入光面 212 :反射面 216 :遮蔽件 220 :出光面 224 :平板部 228 :第一端 _ 232 :距離 242 :第一側面 204 :點狀微結構 206a :導光板 210 :出光面 214 :微結構 218 :光源 222 :微結構區 226 :漸縮部 230 :第二端 234 :方向 244 :第二側面Figure 3 is a side view showing another conventional backlight module. Fig. 4 is a perspective view showing the appearance of the light side of the conventional backlight module. The fifth embodiment avoids a perspective view of a backlight module according to the present invention. A Backlight of an Embodiment FIG. 6 is a perspective view of another module in accordance with the present invention. 100a: backlight module 102a: light guide plate l〇4a: light-emitting surface 108: light-emitting diode 112: shield 116: bright spot 120: tapered portion 200: backlight module 202: main body [main component symbol description] Module 102: light guide plate 104: light exit surface 106. light incident surface 110: light 114: eye 118: non-visible area 122. flat plate portion 200a: backlight module M440447 202a: main body 206. light guide plate 208: light incident surface 212: Reflecting surface 216: shielding member 220: light-emitting surface 224: flat plate portion 228: first end _232: distance 242: first side surface 204: dot-shaped microstructure 206a: light guide plate 210: light-emitting surface 214: microstructure 218: light source 222 : microstructure region 226: tapered portion 230: second end 234: direction 244: second side