200825560 九、發明說明： 【發明所屬之技術領域】 •本發明涉及一種$光板以及具有該導光板之背光模 •組。 【先如技術】 由於液晶顯示器面板之液晶本身不具發光特性，因 而，為達到顯示效果，需向液晶顯示器面板提供一面光源 裝置，如背光模組，其作用在於向液晶顯示器面板供應輝 度充分且分佈均勻之面光源。 先前技術之背光模組主要由光源、導光板、反射板、 擴散板與棱鏡板組成。該光源可設置於導光板—側或兩相 對侧並將絲發射至該導光板。該導光板之作用在於引導 光束傳輸方向’使光束由導光板之出光面均勻出射，反射 板相對該導光板之底面設置，以將由導光板底面出射之光 束再次反射人該導光板内，提高光束之利用率。擴散板盘 棱鏡板相對導光板之出光面依次設置，以使由導光板出射 束分佈更加均句，進而提高液晶顯示 均勻性。 千反/、 =於=二極體具有工作電壓低、發光輝度高、回庫 :度快…長之優點，使其廣泛應用於手機 ： 數位助理）、顯示器之背光模組中。然，發光 2具較強之光學指向性，即出射光具有一定之發散角产，. 當其直接射人背光模組之導光板時，使得導光板入光^ 側易出現光學暗區，且與發光二極體相對之位置易出現光 200825560 柱，不易獲得較佳之入光均勻度。 請參閱圖1與圖2,分別係一種先前技術背光模組之平 •面示意圖與立體示意圖。該背光模組10包括光源12及導 '光板13，導光板13包括一入光面131，一與入光面131相 - 連的出光面132，及一與出光面132相對之底面133。光源 12相對導光板13之入光面131設置，該光源12為若干發 光二極體’該若干發光二極體之出射光束由導光板13之入 , 光面131進入導光板13後，於導光板13内發生反射。該 導光板13引導光源12發出光束之傳輸方向，並將其轉換 成平面光從導光板13之出光面132出射。然而，由於發光 二極體之出射光具有一定發散角，使得導光板13之入光面 131 —侧出現光學暗區15及光柱16，該光學暗區15主要 分佈於二相鄰發光二極體之間，該光柱16分佈於導光板13 正對著發光二極體的位置，影響背光模組10之輝度及出光 均勻性。 、有鑒於此，有必要提供一種可使光線均勻出射之導光 板，以及發光輝度均勻之背光模組。 【發明内容】 以下，將以實施例說明一種可通過對入射光進行有效 調控使得光線均勻出射之導光板，以及具有該導光板之背 光模組。 提供一種導光板，其包括一入光面，一與入光面相交 之出光面及一與出光面相對之底面。所述入光面具有至少 一凹面，用以作為光接收區域，所述凹面上設置有複數個 200825560 第一微稜鏡。 〜提供另一種導光板，其包括一入光面，一與入光面相 ^之出光面及一與出光面相對之底面。所述入光面開設至 •少一凹槽，用以作為光接收區域。所述凹槽貫通出光面與 底面，且所述凹槽包括複數個與出光面及底面相接之第一 微牙文鏡，該苐一微稜鏡為凹槽或凸塊。 另外，提供一種背光模組，其包括上述導光板與至少 f 光源。所述光源具有發光表面，所述發光表面之結構與 所述導光板之入光面之光接收區域之結構相對應，且所述 光源之發光表面與所述導光板之入光面之光接收區域相對 應設置。 所述實施例之導光板具有以下特點：首先，導光板之 入光面可設置不同結構之凹面作為光接收區域，以實現對 不同光源發射出之光線之導引及調整；其次，凹面上設置 之微稜鏡結構亦可根據光源發射出光線之發散情況，或根 I據預定導光板之導光效果進行設置，以達到實際之需要。 所述具有上述導光板之背光模組具有以下特點：根據 所述導光板之入光面特點可與不同種類之光源相配合，從 而形成具有多種發光效果之多功能背光模組，以便用於多 種電子產品中。 【實施方式】 以下將結合附圖及複數個實施例對本技術方案之導光 板及具有該導光板之背光模組進行具體說明。 如圖3與圖4所示，本技術方案第一實施例提供一種 8 200825560 導光板200，其包括一入光面210，一出光面220，一底面 230及複數個側面240。所述入光面210用來接收光源發出 >之光線，所述出光面220與入光面210相交，所述底面230 ' •與出光面220相對，所述複數個側面240用以連結入光面 210、出光面220及底面230,以形成導光板200整體結構。 本實施例中，所述出光面220與入光面210垂直相交，底 面230與出光面220平行相對且與入光面210垂直相交。 , 所述入光面210形成有至少一凹面或凸面作為光接收 \ 區域，用以與形狀相對應之光源相配合，以便使得光源發 出之光線依照預定之散射角度進入導光板200,並且使得進 入導光板200之光線以預定之光能量分佈於預定之區域， 從而達到導光板200入光面210對入射光之有效控制與調 配，為導光板200實現高品質之光線傳輸提供前提。例如， 當光源之發光表面為凸面時，入光面210上與光源相對之 區域最好設置為凹面，而當光源之發光表面為凹面時，入 I 光面210上與光源相對之區域最好設置為凸面。本實施例 中，導光板200用於與具有凸面之至少一光源配合，因此 入光面210形成有至少一第一凹槽211。所述第一凹槽211 貫通出光面220與底面230,且第一凹槽211之表面即為一 凹面（圖未示），該凹面與出光面220與底面230相接通。 所述第一凹槽211之縱向延伸方向（即，從導光板200 之底面230向出光面220之垂直延伸方向，或從出光面220 向底面230之垂直延伸方向）與入光面210之縱向延伸方向 (即，從底面230向出光面220之垂直延伸方向，或從出光 200825560 面220向底面230之垂直延伸方向）相平行。所述第一凹槽 211沿其縱向延伸方向之投影可以為U形、V形、弧形等規 a則或不規則形狀。本實施例中入光面210設置兩第一凹槽 ' -211，且該兩第一凹槽211沿其縱向延伸方向之投影均為相 " 同形狀與尺寸之弧形。 為能夠進一步對從入光面210進入導光板200之光線 之散射角度與光線傳播之均勻性進行調控與分配’入光面 f 210之第一凹槽211中進一步設置有第一微稜鏡213，具體 為至少一第一微稜鏡213設置於第一凹槽211之表面。所 述每一第一微稜鏡213垂直於其與第一凹槽211之凹面接 觸點之切線，即，複數個第一微稜鏡213於第一凹槽211 之表面排列成一曲面體，該曲面體與第一凹槽211之結構 相似，亦即，該曲面體定義出與第一凹槽211形狀相同之 另一凹槽。此外，所述複數個第一微稜鏡213貫通出光面 22〇與底面230形成於第一凹槽211之表面，且所述複數個 I 第一微稜鏡213最好結構、尺寸相同，並且相互平行地且 間隔相等地形成於所述入光面210之第一凹槽211之表面。 所述第一微稜鏡213可為凹槽結構，亦可為凸塊結構， 以凸塊結構為例具體說明第一微稜鏡213之特點，即，於 第一凹槽211之表面設置複數個三棱柱，優選地，所述複 數個三棱柱均勻分佈於第一凹槽211之表面，且所述三棱 柱按照與第一凹槽211相同之曲率半徑排列成與第一凹槽 211相同曲率之曲面，即，複數個三棱柱形第一微棱鏡213 所排列成之曲面體於底面230上之投影與第一凹槽21ι於 200825560 底面230上之投影形狀、曲 槽211於底面23〇上之 』本實軛例中，第一凹 微稜鏡213垂直於出光 傈狂开/第一 '形第一微稜鏡213所排_之/面跡且複數個三棱柱 為與第1㈣ 所述入光面210上之筮一 ^ 4| 4ι ^ Μ ^ Έ 日211之尺寸與形狀以將 入射先之輝度視角限定於14〇度之範 f200825560 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a light panel and a backlight module having the same. [Before technology] Since the liquid crystal of the liquid crystal display panel itself does not have the light-emitting property, in order to achieve the display effect, it is necessary to provide a light source device, such as a backlight module, to the liquid crystal display panel, and the function thereof is to supply the liquid crystal display panel with sufficient brightness and distribution. Even surface light source. The backlight module of the prior art is mainly composed of a light source, a light guide plate, a reflection plate, a diffusion plate and a prism plate. The light source may be disposed on the side of the light guide plate or on two opposite sides and emit the wire to the light guide plate. The light guide plate functions to guide the beam transmission direction to make the light beam uniformly emitted from the light exit surface of the light guide plate, and the reflector plate is disposed opposite to the bottom surface of the light guide plate to reflect the light beam emitted from the bottom surface of the light guide plate to the light guide plate again to improve the light beam. Utilization rate. Diffuser plate The prism plates are arranged in sequence with respect to the light-emitting surface of the light guide plate, so that the beam distribution from the light guide plate is more uniform, thereby improving the uniformity of liquid crystal display. Thousands of anti-, = = in the diode has a low operating voltage, high luminous brightness, back to the library: fast ... long advantage, making it widely used in mobile phones: digital assistants, display backlight module. However, the light-emitting 2 has strong optical directivity, that is, the emitted light has a certain divergence angle, and when it directly hits the light guide plate of the backlight module, the light-guide plate is easily exposed to the optical dark area, and The position opposite to the light-emitting diode is prone to light 200825560 column, which is not easy to obtain better light uniformity. Please refer to FIG. 1 and FIG. 2 , which are schematic diagrams and perspective views of a prior art backlight module, respectively. The backlight module 10 includes a light source 12 and a light guide plate 13. The light guide plate 13 includes a light incident surface 131, a light exit surface 132 connected to the light incident surface 131, and a bottom surface 133 opposite to the light exit surface 132. The light source 12 is disposed opposite to the light incident surface 131 of the light guide plate 13. The light source 12 is a plurality of light emitting diodes. The outgoing light beams of the plurality of light emitting diodes are led by the light guide plate 13. After the light surface 131 enters the light guide plate 13, the light source 131 is guided. Reflection occurs in the light plate 13. The light guide plate 13 guides the light source 12 to emit a light beam, and converts it into planar light to be emitted from the light exit surface 132 of the light guide plate 13. However, since the emitted light of the light-emitting diode has a certain divergence angle, the optical dark area 15 and the light column 16 appear on the light-emitting surface 131 side of the light guide plate 13, and the optical dark area 15 is mainly distributed in two adjacent light-emitting diodes. The position of the light column 16 is opposite to the position of the light guide plate 13 facing the light emitting diode, which affects the brightness and uniformity of the light output of the backlight module 10. In view of the above, it is necessary to provide a light guide plate that allows light to be uniformly emitted, and a backlight module with uniform luminance. SUMMARY OF THE INVENTION Hereinafter, a light guide plate that can uniformly emit light by effectively controlling incident light, and a backlight module having the light guide plate will be described by way of embodiments. A light guide plate is provided, comprising a light incident surface, a light exit surface intersecting the light incident surface, and a bottom surface opposite to the light exit surface. The light incident surface has at least one concave surface for serving as a light receiving area, and the concave surface is provided with a plurality of 200825560 first microscopic flaws. ~ Providing another light guide plate, comprising a light incident surface, a light exit surface opposite to the light incident surface and a bottom surface opposite to the light exit surface. The light incident surface is provided with a recess to serve as a light receiving area. The groove passes through the light emitting surface and the bottom surface, and the groove includes a plurality of first micro-tooth mirrors that are in contact with the light-emitting surface and the bottom surface, and the first micro-shape is a groove or a bump. In addition, a backlight module is provided that includes the above-described light guide plate and at least f light source. The light source has a light emitting surface, and the structure of the light emitting surface corresponds to the structure of the light receiving region of the light incident surface of the light guide plate, and the light emitting surface of the light source and the light receiving surface of the light guide plate receive light The area is set accordingly. The light guide plate of the embodiment has the following features: First, the light incident surface of the light guide plate can be provided with concave surfaces of different structures as light receiving regions to guide and adjust the light emitted by different light sources; secondly, the concave surface is disposed. The micro-twist structure can also be set according to the divergence of the light emitted by the light source, or the root I is set according to the light guiding effect of the predetermined light guide plate to achieve the actual needs. The backlight module having the light guide plate has the following features: according to the light incident surface of the light guide plate, it can cooperate with different kinds of light sources to form a multifunctional backlight module having multiple illumination effects, so as to be used for various In electronic products. [Embodiment] Hereinafter, a light guide plate of the present technical solution and a backlight module having the same will be specifically described with reference to the accompanying drawings and a plurality of embodiments. As shown in FIG. 3 and FIG. 4, the first embodiment of the present invention provides an 8 200825560 light guide plate 200, which includes a light incident surface 210, a light exit surface 220, a bottom surface 230, and a plurality of side surfaces 240. The light incident surface 210 is configured to receive the light emitted by the light source, and the light emitting surface 220 intersects the light incident surface 210. The bottom surface 230' is opposite to the light emitting surface 220, and the plurality of side surfaces 240 are used for joining The smooth surface 210, the light exit surface 220, and the bottom surface 230 form the entire structure of the light guide plate 200. In this embodiment, the light-emitting surface 220 and the light-incident surface 210 intersect perpendicularly, and the bottom surface 230 is parallel to the light-emitting surface 220 and perpendicularly intersects the light-incident surface 210. The light incident surface 210 is formed with at least one concave surface or convex surface as a light receiving area for cooperating with a light source corresponding to the shape, so that the light emitted by the light source enters the light guide plate 200 according to a predetermined scattering angle, and enters The light of the light guide plate 200 is distributed in a predetermined area with a predetermined light energy, so as to achieve effective control and deployment of the incident light by the light incident surface 210 of the light guide plate 200, which provides a prerequisite for the light guide plate 200 to realize high-quality light transmission. For example, when the light emitting surface of the light source is convex, the area of the light incident surface 210 opposite to the light source is preferably set to a concave surface, and when the light emitting surface of the light source is concave, the area of the light incident surface 210 opposite to the light source is preferably the best. Set to convex. In this embodiment, the light guide plate 200 is configured to cooperate with at least one light source having a convex surface, so that the light incident surface 210 is formed with at least one first groove 211. The first recess 211 extends through the light-emitting surface 220 and the bottom surface 230, and the surface of the first recess 211 is a concave surface (not shown). The concave surface is connected to the light-emitting surface 220 and the bottom surface 230. The longitudinal direction of the first groove 211 (ie, the vertical direction from the bottom surface 230 of the light guide plate 200 to the light exit surface 220, or the vertical direction from the light exit surface 220 to the bottom surface 230) and the longitudinal direction of the light incident surface 210 The direction of extension (i.e., the direction from the bottom surface 230 to the direction in which the light exit surface 220 extends vertically, or the direction from which the light exits 200825560 surface 220 extends perpendicularly to the bottom surface 230) is parallel. The projection of the first groove 211 along its longitudinal extension direction may be U-shaped, V-shaped, curved, or the like. In the embodiment, the light-incident surface 210 is provided with two first grooves '-211, and the projections of the two first grooves 211 along the longitudinal extension direction thereof are arcs of the same shape and size. In order to further adjust and distribute the scattering angle of the light entering the light guide plate 200 from the light incident surface 210 and the uniformity of the light propagation, the first groove 211 of the light incident surface f 210 is further provided with a first micro 稜鏡 213 Specifically, at least one first micro 稜鏡 213 is disposed on a surface of the first recess 211. Each of the first micro-twist 213 is perpendicular to a tangent to the concave contact point of the first groove 211, that is, the plurality of first micro-strips 213 are arranged on the surface of the first groove 211 to form a curved body. The curved body is similar in structure to the first groove 211, that is, the curved body defines another groove having the same shape as the first groove 211. In addition, the plurality of first micro-tunes 213 are formed on the surface of the first recess 211 through the light-emitting surface 22 and the bottom surface 230, and the plurality of first micro-tips 213 are preferably of the same structure and size, and The surfaces of the first grooves 211 of the light incident surface 210 are formed in parallel with each other and at equal intervals. The first micro 稜鏡 213 may be a groove structure or a bump structure. The feature of the first micro 稜鏡 213 is specifically illustrated by using a bump structure, that is, a plurality of surfaces are disposed on the surface of the first groove 211. Preferably, the plurality of triangular prisms are uniformly distributed on the surface of the first groove 211, and the triangular prisms are arranged to have the same curvature as the first groove 211 according to the same radius of curvature as the first groove 211. The curved surface, that is, the projection of the curved body of the plurality of triangular prism-shaped first microprisms 213 on the bottom surface 230 and the projection shape of the first groove 21 on the bottom surface 230 of the 200825560, and the curved groove 211 on the bottom surface 23 In the example of the yoke, the first concave micro 稜鏡 213 is perpendicular to the exit pupil / / / first 'shaped first micro 稜鏡 所 _ 面 面 面 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且The size and shape of the 211 4 4 ^ ^ 211 211 211 211 211 211 211 211 211 211 211 211 211 211 211 211 211 211 211 211 211 211
於100度之笳圚内。…4 / 一 取野限疋 複數個二棱柱形第一微稜鏡213均勻 地且以與第一凹槽211相同曲率分佈於第-凹冑211表 面，一方面可配合第一凹槽211更好之將入射光之輝度視 角限定於140度（包括140度）之範圍内’或最好限定於1〇〇 度之範圍内；另—方面，可使人射光輝度均勻地分佈於上 述140度或100度之視角範圍内。 所述出光面22〇上亦形成有至少一出光微稜鏡221，以 實現光線依照預定之出射視角以及預定均勻之輝度從導光 板200導出。所述微稜鏡221可為凹槽，亦可為凸塊。例 如，導光板200之出光面22〇表面設置複數個凸塊狀出光 微稜鏡221，且複數個出光微稜鏡221形狀、尺寸相同，並 且複數個出光微棱鏡221均勻地分佈於出光面220上。所 述出光微稜鏡221之橫向延伸方向（即，從出光面220與入 光面210相交之一邊向出光面220之另一相對邊垂直延伸 之方向，或相反地，從出光面220與入光面210相對一侧 面240相交之一邊向出光面220之另一相對邊垂直延伸之 方向）與出光面220之橫向延伸方向（即，從出光面220與入 11 200825560 光面210相交之一邊向出光面220之另一相對邊垂直延伸 之方向’或相反地，從出光面220與入光面210相對之侧 •面240相交之一邊向出光面220之另一相對邊垂直延伸之 方向）相平行或一致。 所述出光微稜鏡221沿其橫向延伸方向之投影可為三 角形、梯形、扇形、圓缺（小於半圓之圖形，由劣弧與直線 而圍成之圖形）。所述出光微稜鏡221滿足條件：光線經出 , 光微稜鏡221折射後之視角小於等於11〇度，最好小於等 於100度。本實施例中，出光微稜鏡221沿其橫向延伸方 向之投影為三角形，即，出光微稜鏡221為三棱柱。 由於導光板200入光面210可設置不同結構之第一凹 槽211，例如不同曲率之弧面形凹槽，可得到不同結構之入 射區域以實現對不同光源發射出光線之導引與調整，因此 本實施例之導光板200可與不同種類之光源相配合形成背 光模組，並且使得所得到之背光模組具有複數種發光效 ί 果。另外，第一凹槽211上之第一微稜鏡即第二凹槽213 之結構亦可根據光源發射出光線之發散情況，或根據預定 導光板之導光效果進行設置，以達到實際之需要。 如圖5與圖6所示，本技術方案第二實施例之導光板 300與第一實施例之導光板200結構大體相同，除入光面 310與出光面320之結構外。第二實施例之導光板300之入 光面310定義至少一凹面311與至少一平面312,所述凹面 311貫通出光面320及與出光面320相對之底面（圖未標 示），同樣所述平面312與出光面320及與出光面320相對 12 200825560 之底面相接通，且平面312垂直於出光面320。本實施例 中，入光面310定義有兩凹面311與三個平面312,且凹面 β311與平面312交替排列，凹面311與平面312分別與出光 •面320及與出光面320相對之底面相連通，且平面312垂 直於出光面320。 凹面311上形成有第一微稜鏡陣列313,平面312上形 成有第二微稜鏡陣列314,且第一微稜鏡陣列313與第二微 , 稜鏡陣列314分別與出光面320及與出光面320相對之底 面相連通。第一微稜鏡陣列313中每一第一微稜鏡垂直於 該第一微稜鏡與凹面311接觸點之切線，即，第一微稜鏡 陣列313於凹面311上排列成一曲面體，該曲面體與凹面 311之結構相似，亦即，該曲面體定義出與凹面311形狀相 同之另一凹面。所述第二微稜鏡陣列314與平面312平行， 且第二微稜鏡陣列314中第二微稜鏡上相同點到平面312 表面之距離相等。所述第一微稜鏡陣列313與第二微稜鏡 I 陣列314交替排列於入光面310。第一微稜鏡陣列313係由 相同結構、相同尺寸之複數個第一微稜鏡相互平行且間隔 相同地排列組成；第二微稜鏡陣列314由相同結構、相同 尺寸之複數個第二微稜鏡相互平行且間隔相同地排列組 成，其中，組成第一微棱鏡陣列313之第一微稜鏡之結構、 尺寸與組成第二微稜鏡陣列314之第二微稜鏡之結構、尺 寸不同。本實施例中，第一微稜鏡陣列313為三棱柱陣列， 且經過第一微稜鏡陣列313之光線之視角為100度，第二 微稜鏡陣列314為V形凹槽陣列，且經過第二微稜鏡陣列 13 200825560 314之光線之視角為140度。 所述導光板300之出光面320形成有至少一第三微稜 •鏡陣列321與至少一第四微稜鏡陣列322,所述第三微稜鏡 ‘ 陣列321與第四微棱鏡陣列322排列於出光面320。所述第 三微稜鏡陣列321與入光面310之第一微稜鏡陣列313相 對應設置，例如，第三微稜鏡陣列321與第一微稜鏡陣列 313垂直相交。所述第四微稜鏡陣列322與第二微稜鏡陣列 314相對應設置，例如，第四微棱鏡陣列322與第二微稜鏡 陣列314垂直相交。 第三微稜鏡陣列321與第四微稜鏡陣列322分別由相 同結構尺寸之微棱鏡平行且相同間隔地排列組成，其中， 組成第三微稜鏡陣列321之微稜鏡之結構與組成第四微稜 鏡陣列322之微棱鏡之結構不同。本實施例中，第三微稜 鏡陣列321為三棱柱陣列，且經過第三微稜鏡陣列321之 光線之視角為100度。而第四微稜鏡陣列322為圓缺形柱 ； 體，所謂圓缺形柱體係指，柱體之底面為圓缺面（有一條弧 和一條線段為成之形狀），第四微稜鏡陣列322中之每一微 稜鏡亦可看作係沿圓柱體軸線切取一定角度之扇形體，該 扇形體之底面為扇形，以該扇形面上之弧線所對應之弦與 兩條直線邊所圍成之三角形為底面，於該扇形體上且除一 三棱柱後所剩餘之柱體結構，即為第四微稜鏡陣列322之 一微稜鏡結構。經過第四微稜鏡陣列322之光線之視角為 110 度。 由於入光面310形成有不同結構之入射區域以實現對 14 200825560 不同光源發射出之光線之導引與調整，因此本實施例中之 導光板可與不同種類之光源相配合形成背光模組。例如對 •於入光面之第一凹面311區域可設置發光面為凸面之光 ’ ·源，而第一平面312區域可設置發光面為平面之光源，因 此，該導光板可同時配合不同種類之複數個光源進行使 用。另外，第一凹面311之第一微稜鏡313與第一平面312 之第二微稜鏡314之結構亦可根據光源發射出光線之發散 f 情況，或根據預定導光板之導光效果進行設置，以達到實 際之需要。 如圖7所示，本技術方案第三實施例提供一種具有第 一實施例中導光板200之背光模組400。所述背光模組400 包括至少一光源410與一導光板200。所述光源410具有一 發光表面411，且該發光表面411之結構與導光板200入光 面210之光接收區域之結構相對應。所述光源410設置於 導光板200入光面210之光接收區域相對之位置，且發光 I 表面411與入光面210之光接收區域相對設置。所謂發光 表面411之結構與導光板200入光面21〇之光接收區域之 結構相對應，係指發光表面411之形狀與導光板200入光 面210之光接收區域之形狀呈互補關係，即，當光源410 之發光表面411為凸面時，入光面210上與光源相對之光 接收區域最好設置為凹面，而當光源410之發光表面411 為凹面時，入光面210上與光源相對之光接收區域最好設 置為凸面。 本實施例中’導光板200之入光面210上開設有兩第 15 200825560 一凹槽211作為光接收區域，與每一第一凹槽211相對之 位置設置有兩光源410。所述光源410之發光表面411之形 •狀與第一凹槽211之形狀相對應，即，發光表面411之形 '•狀與第一凹槽211之形狀呈互補關係，例如，當第一凹槽 211於導光板200之底面230(參見圖3)上之投影為弧形時， 發光表面411於導光板200之底面230(參見圖3)之延長面 上之投影為與第一凹槽211之投影相同曲率之弧形。 本實施例之背光模組400中，導光板200入光面210 Γ 可設置不同結構之第一凹槽211，例如不同曲率之弧面形凹 槽，以配置與該第一凹槽211相對應之不同種類之光源 410(如點光源、面光源等），可得到具有複數種發光功能及 效果之背光模組400。 如圖8所示，本技術方案第四實施例提供一種具有第 二實施例中導光板300之背光模組500。所述背光模組500 包括至少一光源與一導光板300。由於導光板300之入光面 ( 具有兩第一凹面311與三個第一平面312，且第一凹面311 與第一平面312交錯排列。為此，背光模組500中包括兩 第一光源510與三個第二光源520。兩第一光源510分別設 置於導光板300之兩第一凹面311相對之位置，且三個第 二光源520分別設置於導光板300之三個第二平面312相 對之位置。 本實施例之背光模組500中，導光板300之入光面310 設置複數個光接收區域，如第一凹面311與第二平面312， 以同時配合不同種類之複數個光源（如點光源、面光源等） 16 200825560 組成具有複數種發光特點之多功能背光模組500,從而使得 該背光模組500可用於多種電子產品。 綜上所述，本發明確已符合發明專利之要件，遂依法 ' •提出專利申請。惟，以上所述者僅為本發明之較佳實施方 - 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1為先前技術背光模組之平面示意圖。 圖2為先前技術背光模組之立體示意圖。 圖3為本技術方案第一實施例之導光板之立體示意圖。 圖4為本技術方案第一實施例之導光板之平面示意圖。 圖5為本技術方案苐二實施例之導光板之立體不意圖。 圖6為本技術方案第二實施例之導光板之平面示意圖。 圖7為本技術方案第三實施例之背光模組平面示意圖。 : 圖8為本技術方案第四實施例之背光模組平面示意圖。 【主要元件符號說明 ] 導光板 200， 300背光模組 400 ， 500 入光面 210， 310出光面 220 ， 320 底面 230 側面 240 第一凹槽 211 第一微稜鏡 213 出光微稜鏡 221 凹面 311 平面 312 第一微稜鏡陣列 313 第二微稜鏡陣列 314 第三微稜鏡陣列 321 17 200825560 第四微稜鏡陣列 發光表面 第二光源 322 光源 410 411 第一光源 510 520 18Within 100 degrees. ... 4 / a field limit 疋 a plurality of prismatic first micro 稜鏡 213 uniformly distributed on the surface of the first recess 211 with the same curvature as the first groove 211, on the one hand, the first groove 211 can be matched It is preferable to limit the luminance angle of the incident light to a range of 140 degrees (including 140 degrees) or preferably to a range of 1 degree. On the other hand, the luminance of the human light can be uniformly distributed to the above 140 degrees. Or within a 100 degree viewing angle. At least one light-emitting aperture 221 is also formed on the light-emitting surface 22 to realize light emission from the light guide plate 200 according to a predetermined exit angle of view and a predetermined uniform brightness. The micro-turn 221 may be a groove or a bump. For example, a plurality of bump-shaped light-emitting pupils 221 are disposed on the surface of the light-emitting surface 22 of the light guide plate 200, and a plurality of light-emitting micro-cubes 221 have the same shape and the same size, and a plurality of light-emitting microprisms 221 are evenly distributed on the light-emitting surface 220. on. The lateral direction of the light-emitting pupil 221 (ie, the direction from the side where the light-emitting surface 220 intersects the light-incident surface 210 to the other opposite side of the light-emitting surface 220, or vice versa, from the light-emitting surface 220 and The direction in which the light surface 210 intersects with one side 240 is perpendicular to the other opposite side of the light exit surface 220) and the lateral direction of the light exit surface 220 (ie, from the light exit surface 220 to the intersection of the light surface 210 and the light surface 210) The direction in which the other opposite side of the light-emitting surface 220 extends vertically or vice versa, from the side of the light-emitting surface 220 opposite to the side of the light-incident surface 210 and the intersection of the surface 240 to the other opposite side of the light-emitting surface 220) Parallel or consistent. The projection of the light-emitting pupil 221 along its lateral extension direction may be a triangle, a trapezoid, a fan, or a circle (a pattern smaller than a semicircle, a pattern surrounded by a poor arc and a straight line). The light-emitting pupil 221 satisfies the condition that the light passes through, and the angle of view after the light micro-twist 221 is refracted is less than or equal to 11 degrees, preferably less than equal to 100 degrees. In this embodiment, the projection of the light-emitting pupil 221 along its lateral extension direction is a triangle, that is, the light-emitting pupil 221 is a triangular prism. Since the light-incident surface 210 of the light guide plate 200 can be provided with the first groove 211 of different structures, for example, the arc-shaped groove with different curvatures, the incident regions of different structures can be obtained to realize the guiding and adjusting of the light emitted by different light sources. Therefore, the light guide plate 200 of the embodiment can be combined with different types of light sources to form a backlight module, and the resulting backlight module has a plurality of illumination effects. In addition, the structure of the first micro-turn, that is, the second recess 213 on the first recess 211 may also be set according to the divergence of the light emitted by the light source, or according to the light guiding effect of the predetermined light guide plate, to achieve the actual needs. . As shown in FIG. 5 and FIG. 6, the light guide plate 300 of the second embodiment of the present invention has substantially the same structure as the light guide plate 200 of the first embodiment, except for the structure of the light surface 310 and the light exit surface 320. The light incident surface 310 of the light guide plate 300 of the second embodiment defines at least one concave surface 311 and at least one plane 312. The concave surface 311 penetrates the light exit surface 320 and the bottom surface opposite to the light exit surface 320 (not shown), and the plane is also the same. 312 is connected to the light emitting surface 320 and the light emitting surface 320 opposite to the bottom surface of the 200825560, and the plane 312 is perpendicular to the light emitting surface 320. In this embodiment, the light-incident surface 310 defines two concave surfaces 311 and three planes 312, and the concave surface 311 and the plane 312 are alternately arranged. The concave surface 311 and the plane 312 are respectively connected to the light-emitting surface 320 and the bottom surface opposite to the light-emitting surface 320. And the plane 312 is perpendicular to the light exit surface 320. A first micro-turn array 313 is formed on the concave surface 311, and a second micro-array array 314 is formed on the flat surface 312, and the first micro-array array 313 and the second micro-array array 314 are respectively connected to the light-emitting surface 320 and The light exit surface 320 is in communication with the bottom surface. Each of the first micro-turns 313 is perpendicular to a tangent to the contact point of the first micro-turn and the concave surface 311, that is, the first micro-turn array 313 is arranged on the concave surface 311 as a curved body. The curved body is similar in structure to the concave surface 311, that is, the curved body defines another concave surface having the same shape as the concave surface 311. The second micro-array array 314 is parallel to the plane 312, and the distance from the same point on the second micro-turn in the second micro-array array 314 to the surface of the plane 312 is equal. The first micro 稜鏡 array 313 and the second micro 稜鏡 I array 314 are alternately arranged on the light incident surface 310. The first micro-array array 313 is composed of a plurality of first micro-rings of the same structure and the same size arranged in parallel and at the same interval; the second micro-array array 314 is composed of a plurality of second micro-frames of the same structure and the same size. The 稜鏡 are arranged in parallel with each other and at the same interval, wherein the structure and size of the first micro 组成 constituting the first microprism array 313 and the structure and size of the second micro 组成 constituting the second micro iridium array 314 are different . In this embodiment, the first micro-array array 313 is a triangular prism array, and the light passing through the first micro-array array 313 has a viewing angle of 100 degrees, and the second micro-array array 314 is a V-shaped groove array. The viewing angle of the light of the second micro-array array 13 200825560 314 is 140 degrees. The light-emitting surface 320 of the light guide plate 300 is formed with at least one third micro-array array 321 and at least one fourth micro-array array 322, and the third micro-' array 321 and the fourth micro-prism array 322 are arranged. On the light surface 320. The third micro-array array 321 is disposed corresponding to the first micro-array array 313 of the light-incident surface 310. For example, the third micro-array array 321 vertically intersects the first micro-array array 313. The fourth micro-iridium array 322 is disposed corresponding to the second micro-array array 314, for example, the fourth micro-prism array 322 and the second micro-array array 314 intersect perpendicularly. The third micro-array array 321 and the fourth micro-array array 322 are respectively arranged in parallel and at the same interval by the micro-prisms of the same structural size, wherein the structure and composition of the micro-turns constituting the third micro-array array 321 The structure of the microprisms of the four micro-array array 322 is different. In this embodiment, the third microprism array 321 is a triangular prism array, and the angle of view of the light passing through the third micro-array array 321 is 100 degrees. The fourth micro-turn array 322 is a round-shaped column; the body, the so-called round-shaped column system means that the bottom surface of the cylinder is a round-faced surface (there is an arc and a line segment is formed into a shape), and the fourth micro-turn Each micro-turn in the array 322 can also be regarded as a segment that cuts a certain angle along the axis of the cylinder, and the bottom surface of the segment is a fan shape, and the chord and the two straight edges corresponding to the arc on the scalloped surface The enclosed triangle is a bottom surface, and the remaining cylindrical structure on the sector and except for a triangular prism is a microscopic structure of the fourth micro-array array 322. The angle of view of the light passing through the fourth micro-array array 322 is 110 degrees. Since the light incident surface 310 is formed with incident regions of different structures to guide and adjust the light emitted by different light sources, the light guide plate in this embodiment can be combined with different kinds of light sources to form a backlight module. For example, in the first concave surface 311 of the light incident surface, a light source having a convex surface may be disposed, and the first flat surface 312 may be provided with a light source having a flat light surface. Therefore, the light guide plate can be matched with different types at the same time. A plurality of light sources are used. In addition, the structure of the first micro 稜鏡 313 of the first concave surface 311 and the second micro 稜鏡 314 of the first plane 312 may also be set according to the divergence f of the light emitted by the light source, or according to the light guiding effect of the predetermined light guide plate. To achieve the actual needs. As shown in FIG. 7, the third embodiment of the present invention provides a backlight module 400 having the light guide plate 200 of the first embodiment. The backlight module 400 includes at least one light source 410 and one light guide plate 200. The light source 410 has a light emitting surface 411, and the structure of the light emitting surface 411 corresponds to the structure of the light receiving region of the light guiding surface 200 of the light guide plate 200. The light source 410 is disposed at a position opposite to the light receiving area of the light incident surface 210 of the light guide plate 200, and the light emitting surface 411 is disposed opposite to the light receiving area of the light incident surface 210. The structure of the light-emitting surface 411 corresponds to the structure of the light-receiving region of the light-incident surface 21 of the light guide plate 200, and the shape of the light-emitting surface 411 is complementary to the shape of the light-receiving region of the light-incident surface 210 of the light guide plate 200, that is, When the light emitting surface 411 of the light source 410 is convex, the light receiving surface of the light incident surface 210 opposite to the light source is preferably disposed as a concave surface, and when the light emitting surface 411 of the light source 410 is concave, the light incident surface 210 is opposite to the light source. The light receiving area is preferably set to be convex. In the embodiment, the light-incident surface 210 of the light guide plate 200 is provided with two recesses 211 as the light receiving regions, and two light sources 410 are disposed opposite to each of the first recesses 211. The shape of the light emitting surface 411 of the light source 410 corresponds to the shape of the first groove 211, that is, the shape of the light emitting surface 411 is complementary to the shape of the first groove 211, for example, when the first When the projection of the groove 211 on the bottom surface 230 (see FIG. 3) of the light guide plate 200 is curved, the projection of the light-emitting surface 411 on the extended surface of the bottom surface 230 (see FIG. 3) of the light guide plate 200 is the same as the first groove. The projection of 211 is curved with the same curvature. In the backlight module 400 of the embodiment, the light-incident surface 210 of the light guide plate 200 can be provided with a first groove 211 of different structure, such as a curved surface groove of different curvature, to be configured corresponding to the first groove 211. Different types of light sources 410 (such as point light sources, surface light sources, etc.) can obtain a backlight module 400 having a plurality of light emitting functions and effects. As shown in FIG. 8, the fourth embodiment of the present invention provides a backlight module 500 having the light guide plate 300 of the second embodiment. The backlight module 500 includes at least one light source and a light guide plate 300. The light incident surface of the light guide plate 300 has two first concave surfaces 311 and three first flat surfaces 312, and the first concave surface 311 is staggered with the first flat surface 312. To this end, the backlight module 500 includes two first light sources 510. The two first light sources 520 are respectively disposed at opposite positions of the two first concave surfaces 311 of the light guide plate 300, and the three second light sources 520 are respectively disposed on the three second planes 312 of the light guide plate 300. In the backlight module 500 of the embodiment, the light incident surface 310 of the light guide plate 300 is provided with a plurality of light receiving regions, such as a first concave surface 311 and a second planar surface 312, to simultaneously match a plurality of light sources of different types (such as Point light source, surface light source, etc. 16 200825560 A multi-function backlight module 500 having a plurality of light-emitting characteristics is formed, so that the backlight module 500 can be used for various electronic products. In summary, the present invention has indeed met the requirements of the invention patent.遂According to the law's application for patents. However, the above is only the preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application in this case. The equivalent modifications or variations of the spirit of the invention are intended to be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic plan view of a prior art backlight module. Figure 2 is a perspective view of a prior art backlight module. 3 is a schematic perspective view of a light guide plate according to a first embodiment of the present invention. FIG. 4 is a schematic plan view of a light guide plate according to a first embodiment of the present invention. Figure 6 is a schematic plan view of a light guide plate according to a second embodiment of the present invention. Figure 7 is a plan view of a backlight module according to a third embodiment of the present invention. Schematic diagram of the module. [Main component symbol description] Light guide plate 200, 300 backlight module 400, 500 light-incident surface 210, 310 light-emitting surface 220, 320 bottom surface 230 side surface 240 first groove 211 first micro-稜鏡 213 light micro稜鏡221 concave surface 311 plane 312 first micro 稜鏡 array 313 second micro 稜鏡 array 314 third micro 稜鏡 array 321 17 200825560 fourth micro 稜鏡 array hair The second light source 322 face the first light source 410 411 51052018