M350026 八、新型說明： '【新型所屬之技術領域】 • 本創作是有關於一種光學板’且特別是有關於一種導光板。 【先前技術】 圖1是習知一種背光模組的示意圖，而圖2是圖1中導光板 的細部結構示意圖。請參照圖1與圖2，習知背光模組1〇〇包括一 導光板110、一棱鏡片120、一擴散片130、一反射片140以及多 ' 個發光二極體（light emitting diode，LED) 150。導光板 110 具有 鲁一入光面112、一出光面114與一底面116,其中出光面Π4與底 面116相對’且入光面112是連接出光面114與底面116。稜鏡片 120是配置於導光板110之出光面114上方，擴散片130是配置於 稜鏡片120上方，反射片140是配置於導光板H0之底面116下 方，而發光二極體150是配置於導光板11〇之入光面112旁。此 外，導光板110之出光面114設有以喷砂的方式形成的微凹結構 115 ’而導光板110之底面116設有多個V形結構117。 承上述，發光二極體150是用以提供光線152至導光板110 内，而導光板110之出光面114與底面116會使光線152產生全 鲁反射，進而使光線152朝向遠離入光面112的方向傳遞。不過， - 由於具有V形結構117可破壞光線152的全反射現象，使光線152 從導光板110的底面116出射，而反射片140則用以將從底面116 出射的光線152反射回導光板110内；另一方面，微凹結構115 亦可破壞光線152的全反射現象，使光線152從導光板11〇的出 光面114出射。另外，稜鏡片120與擴散片130是用以將從導光 板110的出光面114出射的光線152進一步聚光與均勻化。 圖3是圖1中發光二極體150與導光板110的俯視圖。由於 發光二極體150為點光源’所以發光二極體150所提供的光線152 M350026 在入射導光板11G時，需有足夠的混光空間使光線152能均句、g 光。否則，錄152入射導光板110會在靠近入光面Π2的區g 產生明，的免點（hGt spot) 5G。另外，亦提出增加微凹結構ΐΐ5 來消除亮點50的方法’然而’如此會導致靠近人光面112的區 產生光暈（light halo )現象。 " 【新型内容】 本創作提供一種導光板，以提升面光源的均勻性。M350026 VIII. New description: '[Technical field to which the new type belongs] • This creation relates to an optical plate' and in particular to a light guide plate. [Prior Art] Fig. 1 is a schematic view of a conventional backlight module, and Fig. 2 is a schematic view showing a detailed structure of the light guide plate of Fig. 1. Referring to FIG. 1 and FIG. 2 , the backlight module 1 〇〇 includes a light guide plate 110 , a prism sheet 120 , a diffusion sheet 130 , a reflection sheet 140 , and a plurality of light emitting diodes (LEDs). ) 150. The light guide plate 110 has a light-incident surface 112, a light-emitting surface 114 and a bottom surface 116, wherein the light-emitting surface 4 is opposite to the bottom surface 116, and the light-incident surface 112 is connected to the light-emitting surface 114 and the bottom surface 116. The cymbal 120 is disposed above the light-emitting surface 114 of the light guide plate 110, the diffusion sheet 130 is disposed above the cymbal 120, the reflection sheet 140 is disposed under the bottom surface 116 of the light guide plate H0, and the light-emitting diode 150 is disposed on the guide The light board 11 is adjacent to the light incident surface 112. Further, the light-emitting surface 114 of the light guide plate 110 is provided with a dimple structure 115' formed by sand blasting, and the bottom surface 116 of the light guide plate 110 is provided with a plurality of V-shaped structures 117. In the above, the light emitting diode 150 is used to provide the light 152 into the light guide plate 110, and the light emitting surface 114 and the bottom surface 116 of the light guide plate 110 cause the light 152 to generate a full light reflection, thereby causing the light 152 to face away from the light incident surface 112. The direction of the pass. However, since the V-shaped structure 117 can destroy the total reflection phenomenon of the light 152, the light 152 is emitted from the bottom surface 116 of the light guide plate 110, and the reflection sheet 140 is used to reflect the light 152 emitted from the bottom surface 116 back to the light guide plate 110. On the other hand, the dimple structure 115 can also destroy the total reflection phenomenon of the light 152, and the light 152 is emitted from the light exit surface 114 of the light guide plate 11〇. Further, the cymbal 120 and the diffusion sheet 130 are used to further condense and homogenize the light ray 152 emitted from the light-emitting surface 114 of the light guide plate 110. 3 is a top plan view of the light emitting diode 150 and the light guide plate 110 of FIG. Since the light-emitting diode 150 is a point light source, the light 152 M350026 provided by the light-emitting diode 150 needs to have enough light-mixing space when the light-guiding plate 11G is incident to make the light 152 uniform and g-light. Otherwise, the recording 152 incident light guide plate 110 will produce a bright point (hGt spot) 5G in the region g near the entrance surface Π2. In addition, it has also been proposed to increase the dimple structure ΐΐ5 to eliminate the bright spot 50. However, this causes a light halo phenomenon to occur in the region near the human light surface 112. " [New content] This creation provides a light guide plate to enhance the uniformity of the surface light source.
本創作的其他目的和優點可以從摘作所減的技術特 得到進一步的了解。 為達上述之一或部份或全部目的或是其他目的，本創作之— 實施例提出-種導光板，具有—人光面、—出光面與—側面。入 光面與侧面相對，而出光面連接人光面與側面。部分出光面上設 有多個柱狀透鏡，其餘部分的出光面上設有多個微擴散結構。每 -柱狀透鏡是從人光面沿-預定方向延伸，且此預定方向是朝向 侧面。相鄰兩柱狀透鏡之間係為分離。 在本創作之一實施例中，上述之每一柱狀透鏡的一長度等於 導光板長度。 在本創作之一實施例中，上述之每一柱狀透鏡的一長度小於 導光板長度。 在本創作之一實施例中，上述之每一柱狀透鏡的長度與導光 板長度的比值實質上介於〇.〇5至0.2之間。 在本創作之一實施例中，上述之柱狀透鏡的長度相同。 在本創作之一實施例中，上述之柱狀透鏡的長度不同。 在本創作之一實施例中，上述之每一柱狀透鏡的一底部具有 固定寬度，且固定寬度與相鄰兩柱狀透鏡間之間距之比值實質 上介於0.03至0.5之間。 6 M350026 在本創作之一實施例中，上述之柱狀透鏡是從入光面沿預定 方向漸細。 在本創作之一實施例中，上述之每一柱狀透鏡之一底部具有 一表大見度，且最大寬度與相鄰兩柱狀透鏡間之最短間距之比值 實質上介於0.03至0.5之間。 在本創作之一實施例中，上述之柱狀透鏡之曲面為弧形面。 在本創作之一實施例中，上述之柱狀透鏡之曲面為橢圓形面。 在本創作之一實施例中，上述之柱狀透鏡為三角形柱狀透 鏡’且二角形柱狀透鏡的頂部為弧面。 在本創作之一實施例中，上述之每一柱狀透鏡具有一頂面以 及分別連接頂面之相對二側的二弧面，且頂面為平面。 在本創作之一實施例中，上述之微擴散結構是微凹結構。 在本創作之一實施例中，上述之微擴散結構的深度實質上介 於1微米（micrometer )至3微米之間。 在本創作之一實施例中，上述之微擴散結構的寬度實質上介 於10微米至300微米之間。 、、 ，本創作之-實施例中’上述之導光板更具有與出光面相對 的一底面，且底面設有沿預定方向延伸的多個乂形溝槽。 之導光板可藉由柱狀透鏡之弧面來控制“在導光板 二度’以避免靠近入光面的區域產生明顯的亮點。此外， 鏡之孤面為平滑表面，不會增加出光量，所以不會產 下文之上述和其他目的、特徵和優點能更明顯易懂， 特牛％d土實施例，並配合所附圖式，作詳細說明如下。 【實施方式】 有關本創作之前述及其他技術内容、特點與功效，在以下配合參 M350026 考圖式之一較佳實施例的詳細說明中，將可清楚的呈現。以下實施例 中所提到的方向用語，例如：上'下、左、右、前或後等，僅是參考 •附加圖式的方向。因此，使用的方向用語是用來說明並非用來限制本 創作。 圖4是本創作一實施例之一種導光板的立體示意圖，導光板 200具有一入光面2〇2、一出光面2〇4與一側面2〇6。入光面2〇2 與侧面206相對，而出光面204連接入光面202與侧面206。部分 -出光面204上設有多個柱狀透鏡210,其餘部分的出光面204上設 _有多個微擴散結構220。每一柱狀透鏡210是從入光面202沿一預 定方向P延伸，且此預定方向p是朝向侧面2〇6。相鄰兩柱狀透 鏡210係為分離，其間有一間隔s。 在本實施例中，預定方向P例如是垂直於入光面2〇2,而柱狀 透鏡210例如是弧形柱狀透鏡。此外，每一柱狀透鏡21〇的長度l 等於導光板長度D1。另外，每一柱狀透鏡210之接觸出光面204 的底面212具有固定寬度wi，且此固定寬度W1與相鄰兩柱狀透 鏡210之間距D2之比值例如是實質上介於〇.〇3至〇.5之間。 上述之微擴散結構220例如是微凹結構’其可由喷砂的方式 鲁形成。微擴散結構220的深度例如是介於1微米至3微米之間， 而微擴散結構220的寬度例如是實質上介於1 〇微米至3 〇 〇微米之 間。此外’導光板200之一與出光面204相對的底面208可設有 沿預定方向P延伸的多個V形溝槽230。 圖5A是光線於圖4之導光板入光面之傳遞路徑的側視圖，圖 5B是光線於圖4之導光板中之傳遞路徑的側視圖。設置於導光板 200之入光面202旁的發光二極體60適於提供光線62至導光板 200。其中，傳遞至柱狀透鏡21〇的光線62會被柱狀透鏡21〇反 射至導光板200的底面208並擴散，而傳遞至微擴散結構220的 8 M350026 光線62會從出光面204出射並擴散。 ' 此外，如圖5A所示，柱狀透鏡210之弧面214可控制光線 -62在導光板2〇〇内部之散射角度’以避免靠近入光面202的區域 產生明顯的亮點。如圖5B所示’由於柱狀透鏡210之弧面214為 平滑表面’光線62不易從柱狀透鏡210之弧面214出射，所以不 會增加出光量’由於光線不易從靠近入光面202之出光面204區 域導出導光板200 ’如此可避免產生光暈。再者，若欲增加出光量， '可藉由調整柱狀透鏡21〇間之間距D2，以提高微擴散結構220的 鲁分佈範圍’進而控制出光量，以避免整體輝度下降。 圖6是本創作之導光板的另三種柱狀透鏡的示意圖。在本創 作中，圖4之導光板200的柱狀透鏡210可換成柱狀透鏡21〇a、 柱狀透鏡210b以及或柱狀透鏡210c，或者其他具有弧面的柱狀透 鏡。柱狀透鏡210a可為具半圓形曲面、橢圓形曲面等的柱狀透鏡。 柱狀透鏡210b具有一頂面213以及分別連接頂面213之相對二侧 的二弧面215，且頂面213為平面。柱狀透鏡210c為三角形柱狀 透鏡’且三角形柱狀透鏡的頂部216為弧面。 圖7是本創作另一實施例之一種導光板的立體示意圖。本實 •施例之導光板200a與圖4之導光板200相似，其差別處在於導光 板200a之柱狀透鏡210’是從入光面202沿預定方向P漸細，即是 柱狀透鏡之底面212寬度隨預定方向p逐漸縮短。此外，每一柱 狀透鏡210’之底面212具有一最大寬度W2,且此最大寬度W2與 相鄰兩柱狀透鏡210,間之最短間距D3之比值實質上介於〇.03至 0.5之間。 由於柱狀透鏡210’是用以防止產生明顯的亮點，而亮點通常 產生於鄰近導光板200a之入光面202的區域，所以柱狀透鏡210, 從入光面202沿預定方向p漸細，不僅仍可防止產生明顯的亮點， M350026 且搭配微擴散結構220，還可增加出光面204之鄰近側面206的區 •域的出光量，以提升整體輝度與均勻度。 . 圖8是本創作另一實施例之導光板的俯視圖。本實施例之導 光板200b與圖4之導光板200相似，其差別處在於導光板2〇〇b 之每一柱狀透鏡210的長度L較短。亦即，導光板2〇〇b之每一柱 狀透鏡210的長度L小於導光板長度D1。具體而言，每一柱狀透 •鏡210的長度L與導光板長度D1的比值例如是實質上介於〇.〇5 -至〇.2之間。此外’這些柱狀透鏡210的長度L皆相同。 由於亮點通常產生於鄰近導光板200b之入光面202的區域， 所以將柱狀透鏡210設置於鄰近入光面202的區域即能防止產生 明顯的冗點，且搭配微擴散結構220的分布，也增加了出光面204 之鄰近側面206的區域的出光量，以提升整體輝度。此外，縮短 柱狀透鏡210的長度L能縮短加工柱狀透鏡210所需的時間，進 而提高導光板200b的生產效率。 圖9是本創作另一實施例之導光板的俯視圖。本實施例之導 光板200C與圖8之導光板2〇〇b相似，其差別處在於導光板2〇〇c 之柱狀透鏡210的長度L不同，如此可防止柱狀透鏡21〇的末端 -❿產生稍微的亮線(圖中未顯示）。 - 值得一提的是，導光板、200c中的柱狀透鏡21〇亦可用 k入光面202沿預定方向p漸細的柱狀透鏡（如圖7之柱狀透鏡 210’）取代，而這些柱狀透鏡的長度L皆小於導光板長度。 综上所述，本創作之導光板具有下列優點： ^ 1.本創作可藉由s周整柱狀透鏡之孤面的弧度來控制光線在導 光板内之散射角度，以避免靠近入光面的區域產生明顯的亮點。 2.由於柱狀透鏡之表面為平滑表面，不會增加出光量，所以 能防止光暈的產生。 M350026 3·本創作可II由調整柱狀透鏡之間距， 分佈^出錄，⑽免翅輝打降 構的 作些許之更動與潤傅，因此本創作圍内’當可 利範圍所界^者為準。另外本創作的任申請專 不須達成本創作所揭露之全部或::專利範圍Other purposes and advantages of this creation can be further understood from the technical limitations of the abstract. In order to achieve one or a part or all of the above or other purposes, the present invention - the embodiment proposes a light guide plate having a human face, a light exit surface and a side face. The light entrance surface is opposite to the side surface, and the light exit surface is connected to the human surface and the side surface. A plurality of lenticular lenses are disposed on a portion of the illuminating surface, and a plurality of micro-diffusion structures are disposed on the illuminating surface of the remaining portion. Each of the lenticular lenses extends in a predetermined direction from the human light surface, and the predetermined direction is toward the side. The two adjacent cylindrical lenses are separated. In one embodiment of the present invention, a length of each of the lenticular lenses is equal to the length of the light guide plate. In one embodiment of the present invention, each of the lenticular lenses has a length that is less than the length of the light guide plate. In one embodiment of the present invention, the ratio of the length of each of the lenticular lenses to the length of the light guide plate is substantially between 〇.〇5 and 0.2. In an embodiment of the present invention, the lenticular lenses described above have the same length. In one embodiment of the present invention, the lenticular lenses described above have different lengths. In an embodiment of the present invention, a bottom portion of each of the lenticular lenses has a fixed width, and a ratio of a fixed width to a distance between adjacent lenticular lenses is substantially between 0.03 and 0.5. 6 M350026 In an embodiment of the present invention, the lenticular lens is tapered from a light incident surface in a predetermined direction. In an embodiment of the present invention, one of the bottoms of each of the lenticular lenses has a table visibility, and the ratio of the maximum width to the shortest spacing between adjacent lenticular lenses is substantially between 0.03 and 0.5. between. In an embodiment of the present invention, the curved surface of the lenticular lens is a curved surface. In an embodiment of the present invention, the curved surface of the lenticular lens is an elliptical surface. In one embodiment of the present invention, the lenticular lens described above is a triangular columnar lens ‘ and the top of the lenticular lenticular lens is a curved surface. In an embodiment of the present invention, each of the lenticular lenses has a top surface and two curved surfaces respectively connected to opposite sides of the top surface, and the top surface is a flat surface. In one embodiment of the present invention, the micro-diffusion structure described above is a dimple structure. In one embodiment of the present invention, the depth of the micro-diffusion structure described above is substantially between 1 micrometer and 3 micrometers. In one embodiment of the present invention, the width of the microdiffusion structure described above is substantially between 10 microns and 300 microns. In the present invention, the light guide plate has a bottom surface opposite to the light exit surface, and the bottom surface is provided with a plurality of meandering grooves extending in a predetermined direction. The light guide plate can control the "two degrees on the light guide plate" by the curved surface of the lenticular lens to avoid obvious bright spots in the area close to the light incident surface. In addition, the orphan plane of the mirror is a smooth surface and does not increase the amount of light. Therefore, the above and other objects, features and advantages of the present invention will be more apparent and understood. The detailed description of the specific example is as follows. Other technical contents, features and effects will be clearly shown in the following detailed description of a preferred embodiment of the reference model M350026. Directional terms mentioned in the following embodiments, for example: upper, lower, Left, right, front or back, etc., is only the direction of the reference/additional drawing. Therefore, the directional term used is used to illustrate that it is not intended to limit the creation. Fig. 4 is a perspective view of a light guide plate according to an embodiment of the present invention. The light guide plate 200 has a light incident surface 2〇2, a light exit surface 2〇4 and a side surface 2〇6. The light incident surface 2〇2 is opposite to the side surface 206, and the light exit surface 204 is connected to the light surface 202 and the side surface 206. Part-lighting surface 204 A plurality of lenticular lenses 210 are disposed on the illuminating surface 204 of the remaining portion, and a plurality of micro-diffusion structures 220 are disposed. Each of the lenticular lenses 210 extends from the light-incident surface 202 in a predetermined direction P, and the predetermined direction p is toward the side 2〇6. The adjacent two cylindrical lenses 210 are separated with a space s therebetween. In the present embodiment, the predetermined direction P is, for example, perpendicular to the light incident surface 2〇2, and the lenticular lens 210 is, for example. In addition, the length l of each of the lenticular lenses 21 is equal to the length D1 of the light guide plate. In addition, the bottom surface 212 of each of the lenticular lenses 210 contacting the light-emitting surface 204 has a fixed width wi, and the fixed width The ratio of the distance D1 between W1 and the adjacent two cylindrical lenses 210 is, for example, substantially between 〇.〇3 and 〇.5. The micro-diffusion structure 220 is, for example, a dimple structure, which can be sandblasted. The depth of the micro-diffusion structure 220 is, for example, between 1 micrometer and 3 micrometers, and the width of the micro-diffusion structure 220 is, for example, substantially between 1 〇 micrometer and 3 〇〇 micrometer. A bottom surface 208 opposite to the light exit surface 204 may be provided with a delay along a predetermined direction P FIG. 5A is a side view of the transmission path of the light on the light incident surface of the light guide plate of FIG. 4, and FIG. 5B is a side view of the transmission path of the light in the light guide plate of FIG. 4. The light emitting diode 60 adjacent to the light incident surface 202 of the light plate 200 is adapted to provide light 62 to the light guide plate 200. The light 62 transmitted to the lenticular lens 21 is reflected by the lenticular lens 21 to the bottom surface of the light guide plate 200. 208 and diffuse, and the 8 M350026 ray 62 transmitted to the micro-diffusion structure 220 will exit and diffuse from the light-emitting surface 204. Further, as shown in FIG. 5A, the curved surface 214 of the lenticular lens 210 can control the light-62 at the light guide plate. 2 〇〇 Internal scattering angle 'to avoid obvious bright spots in the area close to the light entrance surface 202. As shown in FIG. 5B, since the curved surface 214 of the lenticular lens 210 is a smooth surface, the light ray 62 is not easily emitted from the curved surface 214 of the lenticular lens 210, so that the amount of light is not increased 'because the light is not easily approached from the light incident surface 202. The light exiting surface 204 region is led out to the light guide plate 200' so that halo can be avoided. Further, if it is desired to increase the amount of light emitted, the amount of light emitted can be controlled by adjusting the distance D2 between the lenticular lenses 21 to increase the range of the micro-diffusion structure 220 to avoid the decrease in the overall luminance. Fig. 6 is a schematic view showing another three kinds of lenticular lenses of the light guide plate of the present invention. In the present creation, the lenticular lens 210 of the light guide plate 200 of Fig. 4 can be replaced with a lenticular lens 21a, a lenticular lens 210b, or a lenticular lens 210c, or other cylindrical lens having a curved surface. The lenticular lens 210a may be a lenticular lens having a semicircular curved surface, an elliptical curved surface, or the like. The lenticular lens 210b has a top surface 213 and two curved surfaces 215 respectively connected to opposite sides of the top surface 213, and the top surface 213 is a flat surface. The lenticular lens 210c is a triangular cylindrical lens ' and the top 216 of the triangular lenticular lens is a curved surface. FIG. 7 is a perspective view of a light guide plate according to another embodiment of the present invention. The light guide plate 200a of the present embodiment is similar to the light guide plate 200 of FIG. 4, and the difference is that the lenticular lens 210' of the light guide plate 200a is tapered from the light incident surface 202 in a predetermined direction P, that is, a lenticular lens. The width of the bottom surface 212 is gradually shortened with a predetermined direction p. In addition, the bottom surface 212 of each of the lenticular lenses 210' has a maximum width W2, and the ratio of the maximum width W2 to the shortest pitch D3 between the adjacent two lenticular lenses 210 is substantially between 〇.03 and 0.5. . Since the lenticular lens 210' is for preventing the occurrence of a distinct bright spot, and the bright spot is usually generated in a region adjacent to the light incident surface 202 of the light guide plate 200a, the lenticular lens 210 is tapered from the light incident surface 202 in a predetermined direction p. Not only can the obvious bright spots be prevented, but the M350026 and the micro-diffusion structure 220 can also increase the amount of light emitted from the area of the adjacent side 206 of the light-emitting surface 204 to improve the overall brightness and uniformity. Figure 8 is a plan view of a light guide plate according to another embodiment of the present invention. The light guide plate 200b of the present embodiment is similar to the light guide plate 200 of FIG. 4, and the difference is that the length L of each of the lenticular lenses 210 of the light guide plate 2B is short. That is, the length L of each of the cylindrical lenses 210 of the light guide plate 2B is smaller than the length D1 of the light guide plate. Specifically, the ratio of the length L of each of the columnar mirrors 210 to the length D1 of the light guide plate is, for example, substantially between 〇.〇5 - to 〇.2. Further, the length L of these lenticular lenses 210 is the same. Since the bright spot is usually generated in the region adjacent to the light incident surface 202 of the light guide plate 200b, the lenticular lens 210 is disposed in the region adjacent to the light incident surface 202 to prevent significant redundancy, and the distribution of the micro-diffusion structure 220 is matched. The amount of light emitted from the region adjacent the side 206 of the light exiting surface 204 is also increased to enhance the overall luminance. Further, shortening the length L of the lenticular lens 210 can shorten the time required for processing the lenticular lens 210, thereby improving the production efficiency of the light guide plate 200b. Figure 9 is a plan view of a light guide plate according to another embodiment of the present invention. The light guide plate 200C of the present embodiment is similar to the light guide plate 2B of FIG. 8, and the difference is that the length L of the lenticular lens 210 of the light guide plate 2〇〇c is different, so that the end of the lenticular lens 21 can be prevented - ❿ produces a slightly bright line (not shown). - It is worth mentioning that the lenticular lens 21 in the light guide plate 200c can also be replaced by a lenticular lens (such as the cylindrical lens 210' of FIG. 7) which is tapered in the predetermined direction p by the k-into-light surface 202. The length L of the lenticular lens is smaller than the length of the light guide plate. In summary, the light guide plate of the present invention has the following advantages: 1. 1. The creation can control the scattering angle of light in the light guide plate by the curvature of the orphan plane of the entire cylindrical lens to avoid approaching the light entrance surface. The area produces obvious highlights. 2. Since the surface of the lenticular lens is a smooth surface, the amount of light is not increased, so that the generation of halation can be prevented. M350026 3. This creation can be adjusted by adjusting the distance between the lenticular lenses, and distributing the records. (10) The wing-free fascination is used to make some changes and Runfu. Therefore, the scope of the creation of the singularity is Prevail. In addition, the application for this creation does not require the full disclosure of this creation or:: patent scope
=r來辅助專利文件搜尋之用，】 【圖式簡單說明】 圖1是習知—種背光模組的示意圖。 圖2是圖1中導光板的細部結構示意圖。 圖3是圖1中發光二極體與導光板的俯視圖。 S 4疋本創作一實施例之一種導光板的立體示意圖。 圖5A是光線於圖4導光板入光面之傳遞路徑的側視圖。 圖5B是光線於圖4之導光板中之傳遞路徑的側視圖。 圖6是本創作之導光板的另三種柱狀透鏡的示意圖。 圖7是本創作另一實施例之一種導光板的立體示意圖。 圖8是本創作另一實施例之導光板的俯視圖。 圖9是本創作另一實施例之導光板的俯視圖。 【主要元件符號說明】 50 :亮點 60、150 :發光二極體 62、⑸：光線 1〇〇 ♦背光模組 110、200、200a、200b、200c :導光板 11 M350026 112、202 :入光面 - 114、204 :出光面 . 115 :微凹結構 116、208 :導光板底面 117 ·· V形結構 120 :棱鏡片 ' 130 :擴散片 - 140:反射片 206 :側面 ® 210、210’、210a、210b、210c :柱狀透鏡 212 :柱狀透鏡底面 213 :頂面 214、215 :弧面 216 :頂部 220 :微擴散結構 230 : V形溝槽 D1 :導光板長度 _ D2 :間距 D3 :最短間距 L:柱狀透鏡長度 P:預定方向 S :間隔 W1 :固定寬度 W2 :最大寬度 12=r to assist in the search of patent documents,] [Simple description of the drawings] Figure 1 is a schematic diagram of a conventional backlight module. 2 is a schematic view showing the detailed structure of the light guide plate of FIG. 1. 3 is a top plan view of the light emitting diode and the light guide plate of FIG. 1. A perspective view of a light guide plate according to an embodiment of the present invention. Fig. 5A is a side view showing the transmission path of light to the light incident surface of the light guide plate of Fig. 4. Figure 5B is a side elevational view of the transmission path of light in the light guide of Figure 4. Fig. 6 is a schematic view showing another three kinds of lenticular lenses of the light guide plate of the present invention. FIG. 7 is a perspective view of a light guide plate according to another embodiment of the present invention. Figure 8 is a plan view of a light guide plate according to another embodiment of the present invention. Figure 9 is a plan view of a light guide plate according to another embodiment of the present invention. [Main component symbol description] 50: Bright spots 60, 150: Light-emitting diode 62, (5): Light 1 〇〇 ♦ Backlight module 110, 200, 200a, 200b, 200c: Light guide plate 11 M350026 112, 202: Light-incident surface - 114, 204: light-emitting surface. 115: dimple structure 116, 208: light guide plate bottom surface 117 · · V-shaped structure 120: prism sheet '130: diffusion sheet - 140: reflection sheet 206: side surface 210, 210', 210a 210b, 210c: lenticular lens 212: lenticular lens bottom surface 213: top surface 214, 215: curved surface 216: top 220: micro-diffusion structure 230: V-shaped groove D1: light guide plate length _ D2: spacing D3: shortest Pitch L: lenticular lens length P: predetermined direction S: interval W1: fixed width W2: maximum width 12