1359989 > .p〇60775BOZlTW 22880twfdoc/n 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種背光模組與液晶顯示器，且 是有關於一種大尺寸的背光模組與液晶顯示器。 【先前技術】1359989 > .p〇60775BOZlTW 22880twfdoc/n IX. Description of the Invention: [Technical Field] The present invention relates to a backlight module and a liquid crystal display, and relates to a large-sized backlight module and a liquid crystal display. [Prior Art]
現今多媒體社會之急速進步，多半受惠於半導體元 或顯示裝置的進步。就顯示器而言，具有高晝質、空間 用效率佳之平面顯示β (Flat panel display)已逐漸成為市 場之主流’其中液晶顯示器已為大眾所接受之產品。由於 液晶顯示器之液晶面板本身不發光，所以需要配置—背光 模組於液晶面板下方，以提供液晶面板顯示所需之面光 源。因此，液晶顯示器的顯示品質與背光模組產生的面光 源是否均自、亮度是否足鱗因素密切有關。 -般來說m组可分為側邊人光式背光模組盘直 下式背光餘。由於直下式背光敝需要較長的混光距離 以達^均勾混光之效果’因此直下式背光模組之厚度較 厚。这不利於薄型顯示II之製作，而側邊人光式背光模組 則具有厚度較薄的優勢。對於側邊人光式背錢組而言， 其導光板之製作品質相當_。若減在導光板中無法有 效地從導紐之頂面出射，這會直接對液晶顯示器的顯示 品質造成不良的影響。 近年來mi* n逐漸朝向大尺寸的趨勢發展 ’大尺 、 三一 作上各易有輕曲（warping )的問題’製作難 度相田μ °這不但無法有效降低製造液晶顯示器之成本， P060775BOZ1TW 22880twfd〇c/n 也無法有效提高產品之可靠度及其顯示品質。 【發明内容】 本發明提供一種背光模組，其可應用於大尺寸之背光 模組，並具有容易製造之優點。 本發明提供一種液晶顯示器，其應用本發明大尺寸之 背光模組’而能具有均勻的顯示效果以及容易製造之優點。 本發明提供一種背光模組包括一背板、多塊導光板與 少個光源組。其中’多塊導光板配置於背板内，每一導光 板具有一出光頂面、一底面、一入光侧面與一反射側面。 此外’反射側面與入光側面相互面對，且反射側面與底面 夾一傾角。另外，兩相鄰之導光板相互承靠，且導光板之 反射側面鄰接下一塊導光板之入光側面。上述之光源組分 別配置於每一反射側面旁，且位於背板與導光板之間。每 一光源組所發出之光線適於藉由反射側面之反射，而由下 一塊導光板之入光側面入射。 在本發明之一實施例中，背光模組更包括一反射結構 配置於最外側之導光板旁’且面向導光板之入光側面。另 外，更有多個光源組配置於此反射結構旁，且光源組所發 出之光線藉由反射結構之反射’由最外側之導光板之入光 侧面入射。在此實施例中，反射結構例如具有一反射平面， 並面向最外側之導光板之入光侧面。在其他實施例中，反 射結構也可以具有一反射曲面，並面向最外側之導光板之 入光側面。 在本發明之一實施例中，各光源組包括多個發光二極 1359989 P060775BOZ1TW 22880twfdoc/n m ° 在本發明之一實施例中，各導光板更包括多個微結 構’對應反射側面而配置於出光頂面上。 在本發明之一實施例中，各反射側面的形狀包括平 面，在其他實施例中，各反射側面的形狀也可以是曲面。 在本發明之一實施例中’傾角介於3〇度至60度。 本發明提供一種液晶顯示器，其包括上述之背光模組 與一配置於背光模組旁的液晶顯示面板。 本發明提供一種背光模組包括一背板、多個導光板與多 個光源組。其中，導光板配置於背板内，且每一導光板具有 出光頂面、一入光底面、一第一反射側面與一第二反射側 面。此外，第一反射側面與第二反射側面相互面對，且分別連 接於出光職與人光底面之間。第—反射側面與第二反射側面 分別與入光底面夾一第一傾角與一第二傾角。另外，相鄰之導 光板互相承靠，且導光板之第二反射側面鄰接下—塊導光板之 第一反射侧面。上述之光源組分別配置於入光底面旁，且對 應第一反射側面。 在本發明之一實施例中，各光源組包括多個發光二極 體。 X — 在本發明之一實施例中，各導光板更包括多個微結 構，對應各導光板之第二反射侧面而配置於出光頂面上。 ，發明提供一種液晶顯示器，包括上述具有第一傾 ，第-傾角之背光模組與一配置於背光模組旁的液晶顯 示面板。 〃' 1359989 1 1 · P060775BO21TW 22880twfdoc/n 由於本發明大尺寸之背光模組是以多塊導光板組合 而成。因此’本發明背光模組之製造困難度可大幅降低。 此外，本發明大尺寸之液晶顯示面板應用了本發明之背光 模组’因而能有效降低製造困難度，並呈現品質良好的顯 示效果。 為讓本發明之上述特徵和優點能更明顯易懂，下文特 舉較佳實施例，並配合所附圖式，作詳細說明如下。 【實施方式】 圖1A是本發明第一實施例之背光模組示意圖。請參 考圖1A ’背光模組1〇〇包括一背板no、多塊導光板u〇 與多個光源組130。其中，多塊導光板120配置於背板u〇 上，而每一導光板120具有一出光頂面140、一底面15〇、 一入光側面160與一反射側面170。具體而言，入光侧面 160與反射侧面170相對，且反射侧面170與底面15〇夾 一傾角Θ。此外，兩相鄰之導光板120相互承靠，且導光 板120之反射侧面170鄰接下一塊導光板120’之入光側面 160。 值得注意的是，本發明之背光模組1〇〇是藉由多塊導 光板120組合，以形成大尺寸之背光模組1〇〇 ’進而有效 防止使用大尺寸之導光板容易有翹1曲（warping)的情況發 生。如此一來’大尺寸背光模組1〇〇之製造困難度便可大 幅降低。此外，本發明之多塊導光板120在組裝上也相當 容易’只需將導光板120相互承靠在一起即可，相鄰導光 板120之間不容易有對位上的問題。實務上，製造人員可 1359989 • P060775BO21TW 22880twfdoc/n 依背光模組100之尺寸’而調整導光板120之使用數量， 因此組裝靈活度相當高。 這裡要強調的是’由於背光模組100所呈現之光學效 果，會直接受導光板120之對位準確度而影響。因此，採 用本發明導光板120之設計，可有效避免因對位不良而降 低了背光模組100所呈現之光學效果。實務上，由於本發 明背光模組100組裝容易，因此這可使所有量產之背光模 組100都能有穩定的品質’進而可提升背光模組1〇〇之可 靠度。 另外，光源組130可以是一或多顆發光二極體(light emitting diode，LED)所組成。當然，所屬技術領域中具有 通常知識者應知光源組130可依混光需要，而採用不同色 光之發光二極體，並可調整不同色光之發光二極體相互之 間的排列方式，在此並不刻意侷限。 具體而言，光源組130分別配置於反射側面17〇旁， 且位於背板11〇與導光板120之間。每一光源組13〇所發 出之光線L1適於藉由反射侧面170之反射，而由下一塊 導光板120’之入光側面160入射。這裡要強調的是，使用 者可以視需求調整反射側面170之傾角Θ大小或是反射側 面170之形狀（如圖iB所示）’用以控制光線li入射至 入光側面160之角度。在一實施例中，傾角θ例如是介於 30度至60度之間。 此外’為了防止兩導光板120相鄰處會有光學效果不 均勻的現象，因此兩導光板120相鄰處之出光頂面14〇上 1359989 ‘ P060775BOZ1TW 228B0twfdoc/n 更可配置多個微結構122，以使光線L1能均勻地散射。實 務上’背光模組100更包括一反射結構180。此反射結構 180配置於最外側之導光板12〇旁，且面向導光板120之 入光側面160。如圖1A所示，最外側之光源組130所發出 之光線可藉由反射結構180之反射，而由最外側之導光板 120之入光側面160入射。舉例而言，由光源組13〇所發 出之光線La、Lb經由反射結構180之反射，入射至底面 150。值得注意的是，為了使導光板120出射之光線La、 Lb更為均勻，通常於底面150上設置多個散射網點p，這 些散射網點P適於破壞光線La、Lb的干涉現象，進而使 得由光源組130所發出的光線La、Lb更為均勻地從導光 板120中出射。一般而言，散射網點p是利用具有高反射 率特性的顏料例如是氧化鈦製作而成。此外，反射結構18 0 可包括反射平面或反射曲面（如圖1B所示），這可視需 求而作適當調整，在此並不刻意侷限。 圖2是本發明第一實施例之液晶顯示器之示意圖。請 參考圖2，本發明之液晶顯示器200包括上述之背光模組 1〇〇與一液晶顯示面板190。其中，背光模組100配置於液 晶顯示面板190下方，以提供液晶顯示面板190顯示所需 之光源。本發明大尺寸之液晶顯示面板190因採用了本發 明之背光模組100，而能有效降低製造困難度，並呈現良 好的顯示效果》 第一實施例 圖3是本發明第二實施例之背光模組示意圖。請參考 1359989 P060775BOZ1TW 22880twfdoc/n 圖3，本發明之背光模組300包括一背板310、多個導光板 320與多個光源組330。其中’導光板320配置於背板31〇内， 且母一導光板320具有一出光頂面340、一入光底面350、一 第一反射側面360與一第二反射側面370。詳細地說，第一反 射側面360與弟一反射侧面370相互面對，且分別連接於出光 頂面340與入光底面350之間。此外，第一反射側面360與第 二反射側面370分別與入光底面350夾一第一傾角Θ1與一第 二傾角Θ2。 具體而言，兩相鄰之導光板320互相承靠，且導光板32〇 之第二反射側面370鄰接下一塊導光板320,之第一反射側面 360。值得注意的是，本發明之背光模組3〇〇是藉由組合多 塊導光板320’以形成大尺寸之背光模組3〇〇。因此，本實 施例之背光模組300與第一實施例之背光模組1〇〇同樣具 有容易製造與組裝靈活度高之優點。 另一方面，光源組330可以是一或多顆發光二極體 (light emitting diode ’ LED)所組成。光源级330分別配置於 入光底面350旁，且朝向第一反射側面360。當然，所屬技 術領域中具有通常知識者應知光源組3 3 〇可依混光需要， 而採用不同色光之發光二極體，並可調整不同色光之發光 二極體相互之間的排列方式’在此並不刻意侷限。 具體而言，光源組330所發出之光線L2由入光底面 350而入射至導光板320内，並依序透過第一反射側面36〇、 第二反射側面370之反射而由出光頂面340出射。值得注意 的是，藉由調整導光板320之第一傾角Θ1與第二傾角θ2& 大小，可分別控制光線L2出射之角度。另外，如圖3所示， 11 P060775BOZ1TW 22880twfdoc/n 由光源組330所發出之光線Lc、Ld經由第一反射側面360 之反射，並入射至入光底面350。光線Lc、Ld再經由光底 面350上之多個散射網點p的散射，將使得由光源組330 所發出的光線Lc、Ld更為均勻地出射。 此外，為了防止兩導光板320相鄰處會有光學效果不 均勻的現象’因此兩導光板320相鄰處之出光頂面340上 更可配置多個微結構322，以使光線L2能均勻地散射。 圖4是本發明第二實施例之液晶顯示器之示意圖。請 參考圖4 ’液晶顯示器400包括上述之背光模組3〇〇與一 液晶顯示面板390。其中，背光模組300配置於液晶顯示 面板390下方’以提供液晶顯示面板39〇顯示所需之光源。 綜上所述，由於本發明大尺寸之背光模組是以多塊導 光板組合而成。因此，本發明之背光模組可有效避免導光 板有翹曲的問題，並可大幅降低製造困難度。此外，本發 明之導光板相當容易組裝，因此相鄰導光板之間不易有對 位上的問題，進而能使本發明之背光模組能呈現均勻的光 學效果。本發明大尺寸之液晶顯示面板應用了本發明之背 光模組，因而能有良好的顯示效果並具有容易製造之優點。 雖然本發明已以較佳實施例揭露如上，然其並非用以 限定本發明，任何所屬技術領域中具有通常知識者，在不 脫離本發明之精神和範圍内，當可作些許之更動與潤許， 因此本發明之㈣範HJ當減附之+請專利範圍所 為準。 4 【圖式簡單說明】 圖1A是本發明第一實施例之背光模組示意圖。 12 1359989 P060775BOZ1TW 22880twfdoc/n 圖IB是本發明第一實施例之另一背光模組示意圖。 圖2是本發明第一實施例之液晶顯示器之示意圖。 圖3是本發明第二實施例之背光模組示意圖。 圖4是本發明第二實施例之液晶顯示器之示意圖。 【主要元件符號說明】 100、300 :背光模組 110、310 :背板The rapid advancement of today's multimedia society has mostly benefited from advances in semiconductors or display devices. As far as the display is concerned, the flat panel display (β) with high enamel quality and space efficiency has gradually become the mainstream of the market. Among them, liquid crystal displays have been accepted by the public. Since the liquid crystal panel of the liquid crystal display itself does not emit light, it needs to be configured—the backlight module is below the liquid crystal panel to provide the surface light source required for the liquid crystal panel display. Therefore, the display quality of the liquid crystal display is closely related to whether the surface light source generated by the backlight module is self-contained or whether the brightness is sufficient. In general, the m group can be divided into a side-light backlight module with a direct backlight. Since the direct type backlight 敝 requires a long light-mixing distance to achieve the effect of the light-mixing light, the thickness of the direct-lit backlight module is relatively thick. This is not conducive to the production of thin display II, while the side human light backlight module has the advantage of thinner thickness. For the side human light type money group, the quality of the light guide plate is quite _. If it is not effectively emitted from the top surface of the guide in the light guide plate, this will directly adversely affect the display quality of the liquid crystal display. In recent years, mi* n has gradually developed toward the trend of large size. 'Difficulty in large-scale and three-in-one warping problems'. It is difficult to reduce the cost of manufacturing liquid crystal displays, P060775BOZ1TW 22880twfd〇 c/n also does not effectively improve the reliability of the product and its display quality. SUMMARY OF THE INVENTION The present invention provides a backlight module that can be applied to a large-sized backlight module and has the advantage of being easy to manufacture. The present invention provides a liquid crystal display which has the advantages of uniform display effect and ease of manufacture by applying the large-sized backlight module ' of the present invention. The invention provides a backlight module comprising a back plate, a plurality of light guide plates and a plurality of light source groups. Wherein the plurality of light guide plates are disposed in the back plate, and each of the light guide plates has a light emitting top surface, a bottom surface, a light incident side surface and a reflective side surface. Further, the reflecting side and the light incident side face each other, and the reflecting side and the bottom side are inclined at an angle. In addition, the two adjacent light guide plates bear against each other, and the reflective side of the light guide plate abuts the light incident side of the next light guide plate. The above-mentioned light source components are disposed beside each reflective side and located between the back plate and the light guide plate. The light emitted by each of the light source groups is adapted to be incident from the light incident side of the next light guide plate by reflection from the reflective side. In an embodiment of the invention, the backlight module further includes a reflective structure disposed adjacent to the outermost light guide plate and facing the light incident side of the light guide plate. In addition, a plurality of light source groups are disposed adjacent to the reflective structure, and the light emitted by the light source group is incident on the light incident side of the outermost light guide plate by reflection of the reflective structure. In this embodiment, the reflective structure has, for example, a reflective plane and faces the light incident side of the outermost light guide. In other embodiments, the reflective structure can also have a reflective curved surface that faces the light incident side of the outermost light guide. In an embodiment of the present invention, each of the light source groups includes a plurality of light-emitting diodes 1359989 P060775BOZ1TW 22880 twfdoc/nm °. In one embodiment of the present invention, each of the light guide plates further includes a plurality of microstructures corresponding to the reflective side surfaces and configured to emit light. On the top. In one embodiment of the invention, the shape of each of the reflective sides includes a flat surface. In other embodiments, the shape of each of the reflective sides may also be a curved surface. In one embodiment of the invention, the angle of inclination is between 3 and 60 degrees. The present invention provides a liquid crystal display comprising the above backlight module and a liquid crystal display panel disposed beside the backlight module. The invention provides a backlight module comprising a back plate, a plurality of light guide plates and a plurality of light source groups. The light guide plate is disposed in the back plate, and each light guide plate has a light emitting top surface, a light incident bottom surface, a first reflective side surface and a second reflective side surface. In addition, the first reflective side surface and the second reflective side surface face each other and are respectively connected between the light emitting position and the human light bottom surface. The first reflecting side and the second reflecting side respectively have a first inclination angle and a second inclination angle with the light entrance bottom surface. In addition, adjacent light guide plates bear against each other, and the second reflective side of the light guide plate abuts the first reflective side of the lower block light guide plate. The light source groups described above are respectively disposed beside the bottom surface of the light incident and correspond to the first reflective side surface. In an embodiment of the invention, each of the light source groups includes a plurality of light emitting diodes. X - In one embodiment of the present invention, each of the light guide plates further includes a plurality of micro-structures disposed on the light-emitting top surface corresponding to the second reflective side surfaces of the respective light guide plates. The invention provides a liquid crystal display comprising the above-mentioned backlight module having a first tilting and a first tilting angle and a liquid crystal display panel disposed beside the backlight module. 〃' 1359989 1 1 · P060775BO21TW 22880twfdoc/n Since the large-sized backlight module of the present invention is a combination of a plurality of light guide plates. Therefore, the manufacturing difficulty of the backlight module of the present invention can be greatly reduced. Further, the large-sized liquid crystal display panel of the present invention employs the backlight module of the present invention, thereby effectively reducing manufacturing difficulty and exhibiting a good quality display effect. The above described features and advantages of the present invention will become more apparent from the following description. Embodiment 1 FIG. 1A is a schematic view of a backlight module according to a first embodiment of the present invention. Referring to FIG. 1A, the backlight module 1 includes a backplane no, a plurality of light guides u〇, and a plurality of light source groups 130. The plurality of light guide plates 120 are disposed on the back plate u, and each of the light guide plates 120 has a light emitting top surface 140, a bottom surface 15〇, a light incident side surface 160 and a reflective side surface 170. Specifically, the light incident side surface 160 is opposite to the reflective side surface 170, and the reflective side surface 170 and the bottom surface 15 are sandwiched by a tilt angle Θ. In addition, the two adjacent light guide plates 120 bear against each other, and the reflective side surface 170 of the light guide plate 120 abuts the light incident side surface 160 of the next light guide plate 120'. It should be noted that the backlight module 1 of the present invention is combined by a plurality of light guide plates 120 to form a large-sized backlight module 1', thereby effectively preventing the use of a large-sized light guide plate from being easily bent. (warping) happens. As a result, the manufacturing difficulty of the large-sized backlight module can be greatly reduced. In addition, the plurality of light guide plates 120 of the present invention are also relatively easy to assemble. It is only necessary to bear the light guide plates 120 together, and there is no problem in alignment between adjacent light guide plates 120. In practice, the manufacturer can adjust the number of the light guide plates 120 according to the size of the backlight module 100 by 1359989 • P060775BO21TW 22880twfdoc/n, so the assembly flexibility is quite high. It should be emphasized here that the optical effect exhibited by the backlight module 100 is directly affected by the alignment accuracy of the light guide plate 120. Therefore, the design of the light guide plate 120 of the present invention can effectively avoid the optical effect exhibited by the backlight module 100 due to poor alignment. In practice, since the backlight module 100 of the present invention is easy to assemble, this enables all of the mass-produced backlight modules 100 to have a stable quality, thereby improving the reliability of the backlight module. In addition, the light source group 130 may be composed of one or more light emitting diodes (LEDs). Of course, those skilled in the art should know that the light source group 130 can use different color light LEDs according to the needs of the light mixing, and can adjust the arrangement of the light-emitting diodes of different color lights. Not deliberately limited. Specifically, the light source group 130 is disposed beside the reflective side surface 17 , and located between the back plate 11 〇 and the light guide plate 120 . The light L1 emitted by each of the light source groups 13 is adapted to be incident by the light incident side surface 160 of the next light guide plate 120' by reflection of the reflective side surface 170. It is emphasized here that the user can adjust the angle of inclination of the reflective side 170 or the shape of the reflective side 170 (as shown in Fig. iB) to control the angle at which the light li is incident on the light incident side 160, as desired. In an embodiment, the inclination angle θ is, for example, between 30 degrees and 60 degrees. In addition, in order to prevent the optical effect from being uneven between the two light guide plates 120, the light-emitting top surface 14 adjacent to the two light guide plates 120 is 1359989' P060775BOZ1TW 228B0twfdoc/n, and a plurality of microstructures 122 can be arranged. So that the light L1 can be uniformly scattered. In practice, the backlight module 100 further includes a reflective structure 180. The reflective structure 180 is disposed beside the outermost light guide plate 12b and faces the light incident side surface 160 of the light guide plate 120. As shown in Fig. 1A, the light emitted by the outermost light source group 130 can be incident by the light incident side surface 160 of the outermost light guide plate 120 by reflection of the reflective structure 180. For example, the light rays La, Lb emitted by the light source group 13A are incident on the bottom surface 150 via the reflection of the reflective structure 180. It should be noted that, in order to make the light rays La and Lb emitted by the light guide plate 120 more uniform, a plurality of scattering mesh points p are generally disposed on the bottom surface 150, and the scattered mesh points P are suitable for destroying the interference phenomenon of the light rays La and Lb, thereby The light rays La, Lb emitted from the light source group 130 are more uniformly emitted from the light guide plate 120. In general, the scattering dot p is made of a pigment having high reflectance characteristics such as titanium oxide. In addition, the reflective structure 18 may include a reflective plane or a reflective curved surface (as shown in Figure 1B), which may be appropriately adjusted as needed, and is not deliberately limited herein. 2 is a schematic view of a liquid crystal display according to a first embodiment of the present invention. Referring to FIG. 2, the liquid crystal display 200 of the present invention comprises the above-mentioned backlight module 1 and a liquid crystal display panel 190. The backlight module 100 is disposed under the liquid crystal display panel 190 to provide a light source required for the liquid crystal display panel 190 to display. The large-size liquid crystal display panel 190 of the present invention can effectively reduce the manufacturing difficulty and exhibit a good display effect by using the backlight module 100 of the present invention. First Embodiment FIG. 3 is a backlight of a second embodiment of the present invention. Module schematic. Please refer to FIG. 3, the backlight module 300 of the present invention includes a back plate 310, a plurality of light guide plates 320 and a plurality of light source groups 330. The light guide plate 320 is disposed in the back plate 31, and the light guide plate 320 has a light exit top surface 340, a light incident bottom surface 350, a first reflective side surface 360, and a second reflective side surface 370. In detail, the first reflecting side 360 and the reflecting side 370 face each other and are respectively connected between the light emitting top surface 340 and the light incident bottom surface 350. In addition, the first reflective side surface 360 and the second reflective side surface 370 respectively have a first tilt angle Θ1 and a second tilt angle Θ2 with the light incident bottom surface 350. Specifically, the two adjacent light guide plates 320 bear against each other, and the second reflective side surface 370 of the light guide plate 32 is adjacent to the first reflective side surface 360 of the next light guide plate 320. It should be noted that the backlight module 3 of the present invention forms a large-sized backlight module 3 by combining a plurality of light guide plates 320'. Therefore, the backlight module 300 of the present embodiment has the advantages of easy manufacturing and assembly flexibility as the backlight module 1 of the first embodiment. Alternatively, source set 330 can be comprised of one or more light emitting diodes (LEDs). The light source stages 330 are respectively disposed beside the light incident bottom surface 350 and face the first reflective side surface 360. Of course, those of ordinary skill in the art should know that the light source group 3 3 can be used according to the light mixing requirements, and the light-emitting diodes of different color lights can be used, and the arrangement of the light-emitting diodes of different color lights can be adjusted. There is no deliberate limitation here. Specifically, the light L2 emitted by the light source group 330 is incident on the light guide plate 320 through the light incident bottom surface 350, and is sequentially emitted from the light exit top surface 340 through the reflection of the first reflective side surface 36〇 and the second reflective side surface 370. . It should be noted that by adjusting the first tilt angle Θ1 and the second tilt angle θ2& of the light guide plate 320, the angle at which the light ray L2 emerges can be separately controlled. In addition, as shown in FIG. 3, the light rays Lc and Ld emitted by the light source group 330 are reflected by the first reflecting side surface 360 and incident on the light incident bottom surface 350. The scattering of the light rays Lc, Ld via the plurality of scattering dots p on the light substrate 350 causes the light beams Lc, Ld emitted by the light source group 330 to be more uniformly emitted. In addition, in order to prevent the optical effect from being uneven between the two light guide plates 320, a plurality of microstructures 322 may be disposed on the light-emitting top surface 340 adjacent to the two light guide plates 320, so that the light L2 can be uniformly scattering. 4 is a schematic view of a liquid crystal display according to a second embodiment of the present invention. Referring to FIG. 4, the liquid crystal display 400 includes the above-described backlight module 3A and a liquid crystal display panel 390. The backlight module 300 is disposed under the liquid crystal display panel 390 to provide a light source required for display of the liquid crystal display panel 39. In summary, the large-sized backlight module of the present invention is a combination of a plurality of light guide plates. Therefore, the backlight module of the present invention can effectively avoid the problem of warpage of the light guide plate, and can greatly reduce the manufacturing difficulty. In addition, the light guide plate of the present invention is relatively easy to assemble, so that there is no problem in alignment between adjacent light guide plates, thereby enabling the backlight module of the present invention to exhibit a uniform optical effect. The large-sized liquid crystal display panel of the present invention employs the backlight module of the present invention, thereby having a good display effect and having the advantage of being easy to manufacture. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the scope of the present invention, and it is possible to make some modifications and changes without departing from the spirit and scope of the invention. Therefore, the (4) Fan HJ of the present invention is subject to the scope of the deduction of the patent. 4 is a schematic diagram of a backlight module according to a first embodiment of the present invention. 12 1359989 P060775BOZ1TW 22880twfdoc/n FIG. 1B is a schematic diagram of another backlight module according to the first embodiment of the present invention. 2 is a schematic view of a liquid crystal display according to a first embodiment of the present invention. 3 is a schematic view of a backlight module according to a second embodiment of the present invention. 4 is a schematic view of a liquid crystal display according to a second embodiment of the present invention. [Main component symbol description] 100, 300: backlight module 110, 310: backplane
120、120,、320、320,：導光板 122、322 :微結構 130、330 :光源組 140、340 :出光頂面 150 :底面 160 :入光側面 170 :反射側面 180 :反射結構 190、390 .液晶顯不面板 200、400 :液晶顯示器 350 :入光底面 360 :第一反射侧面 370 :第二反射側面 LI、L2、La、Lb、Lc、Ld :光線 P:散射網點 Θ :傾角 θΐ :第一傾角 Θ2 :第二傾角 13120, 120, 320, 320, light guide plates 122, 322: microstructures 130, 330: light source groups 140, 340: light exit top surface 150: bottom surface 160: light incident side surface 170: reflective side surface 180: reflective structures 190, 390 Liquid crystal display panel 200, 400: liquid crystal display 350: light incident bottom surface 360: first reflective side surface 370: second reflective side surface LI, L2, La, Lb, Lc, Ld: light P: scattering mesh point 倾: inclination angle θ ΐ : First inclination angle Θ2: second inclination angle 13