201250342 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種背光模組(back-light module)。並且特 別地，本發明係關於具有雙層發光源架構的背光模組。 【先前技術】 眾所皆知，液晶顯示裝置係藉由液晶面板來顯示影像。 但疋’液晶面板本身不發光’必須藉由所謂的背光模組來達 到發光功能’因此背光模組是液晶顯示裝置重要的零組件。 現行$光模組大多採用發光二極體(他扮-⑽池吨di0(je)做 ，發光光源，其架構大致區分為直下式背光模組以及側光式 背光模組。直下式背光模組具有出光效率高、不需導光板、 零組件較少等優點，但是也具有光均齊度較低、模組較厚等 缺點。直下式背光模組區分為兩種型式。第一種型式的直下 式背光模組是直接將發光二極體排列在燈箱内。但是，為 發光二極體能充分混光，需要_定厚度的燈箱。此外，第一 ^式的直下式背光模組需要的發光二極體酿 :第二種型式的直下式背光模組是以第一S ΐίΐ式月光模組為基礎，在每—顆發光二極體上安袭透鏡 ’以減少發光二極體混光的空間，並減少發 體 ίίΐ光型式直下式背光模組成本較高7且= 而要混先二間此先而需具有一定厚度的燈箱。 側，，背光模組的主要結構由發光光源 imati、=則(例如：稜制、擴制、反 先源反射罩以及外部片荨） 先模組中㈣料均核 201250342 因素。由於背光模組的光源使用效率重點在於導光板上微結 構與其外型設計以及光源的種類，因此，如何對導光板進g 有效率的設計，使得整體出光之亮度與光均齊度表 望’為主要設計的考量时Μ是，導歧仍具有相當^ 度二導致側光式背光模組仍嫌厚重。並且，導光板上微結構 的設計需視液晶面板的尺寸而定，也就是說針對小尺寸液晶 面板的導光板設計無法應用在針對大尺寸液晶面板的 背，模組内。針對大尺寸液晶面板，—賴光式背光模电内 的導，板甚至_多個小尺寸導光婦接組成，此造成整體 結構複雜、導光板定位_、組裝難度提升 降低、量產性降低、成本相對提高等問題。賴構強度 對背光模組先前技術的瞭解，即可看出當 ，，光模組架構，以滿足背光模組關於出有ί 輝又、间均齊度、向機構強度、結構簡 ^ 【發明内容】 光模f且發種層發光源架翻背 尺寸液晶面板容易設計等優；且;針對不同 厚重的燈箱，其主要的光學元件二：光模組無需 使背光模組整體相當H 、上也無絲成微結構’致 根據本發明之-較佳具體實 裝置(pr— light source)以及次光含主光源 source)。主光源裝置包含至丨—原裝.置（sec〇ndaiy light s。—。至少二子光源裝置係置= 6 201250342 f二$母二子光源具有個別的第一出光面(exit surface)，並 梦^一出先面射出第一光線。次光源裝置係設置於主光源 ^，、，’並且具有第二出光面。第二出光面係遠離第一出光 ^且第一出光面上包含至少一出光區域(exit region)。每 光區域係位於至少二子光源裝置之一個鄰接處上。次光 源裝置從至少—出光區域射出第二光線。 _於一具體實施例中，每一子光源裝置包含多個第一發光 元件以及第一導光元件。每一第一導光元件包含第一導光 層、第一光學層以及第二光學層。第一導光層係位於第一光 學層及第二光學層之間，並且第一導光層之折射率大於第一 光學層及第一光學層之折射率，故第一導光元件之實施形態 例如與光纖形態相似，可使光線在第一導光元件内全反射^ 進，並同時進行混光，而於第一光學層上再設有多個第一開 口，此些第一開口會破壞光線在第一導光元件内全反射前進 的狀fe，因此光線在遇到第一開口時，便會由第一開口射 出，而成為混光完全且具均齊度的平面光源。 於-具體實施射，第-導光元件包含第—側邊以及相 騎第-侧邊之第二侧邊。多個第—發光元件對應設置於第 , 一側邊。 於ί一具ί實i例中’第—導光元件包含第-側邊以及 相對於第-侧邊之第二侧邊。錢第—發光元件雜設置於 第二側邊。 〜、 於另一具體實f列中’第-導光元件包含第一側邊以及 相對於第-側邊之第二側邊。多個第—發光树 置於第-側邊與第二側邊。 於-具體實施例巾’：欠光源裝置包含多個第二發光元件 201250342 光元件。第二導光元件包含第二導光層、第三光 2 第四光學層。第二導_位於第三光學層及第四光 間，並且第一導光層之折射率大於第三光學層及第四 ^之折射率。特別地，第三光學層具有多個第二開口。 多個第二開口對應至少—出纽域。進—步，第四光學層也 具有多個第二開口 ’多個第二開口對應至少一出光區域。 a ，據本發明之另一較佳具體實施例之背光模組進一步包 j少-遮光元件。至少—遮光元件健蓋至少二子光源裝 置之一個鄰接的空隙。 入，據本發明之另一較佳具體實施例之背光模組進一步包 含反光元件。反光元件係安置於至少二子光源裝置下方。 根巧本發明之另一較佳具體實施例之背光模組，其每一 第一導光元件並且包含一反光層。反光層係形成於第二 層上。 關於本發明之優點與精神可以藉由以下的發明詳述及所 附圖式得到進一步的瞭解。 【實施方式】 本發明係提供一種背光模組，並且特別地，根據本發明 之背光模組具有雙層發光源架構。並且，根據本發明之背光 模組，達到出光效率高、高輝度、高均齊度、高機構強度、 結構簡化專要求，並且具有製造成本低、針對不同尺寸液晶 面板容易設計等優點。並且，根據本發明之背光模組無需厚 重的燈箱，致使背光模組整體相當輕薄。以下將詳述本發明 之具體實施例，藉以充分解說本發明之特徵、精神、優點以 及可實施性。 201250342 請參閱第1圖及第2圖，第丨圖係根據本發明之一較佳 具體實施例之背光模組1之架構示意圖。第1圖中之各元件 特別加上透視圖以表彰其結構特性。第2圖係第丨圖中之背 光模組1沿第1圖中的A-A線之剖面視圖。 如第1圖所示，根據本發明之較佳具體實施例之背光模 組1包含主光源裝置2以及次光源裝置3。主光源裝置2包 含至少二子光源裝置20。至少二子光源裝置2〇係位於同一 水平面上，且彼此鄰接設置。為說明方便，第丨圖僅繪示兩 個子光源裝置20。每一子光源2〇具有個別的第一出光面 22，，且從第一出光面22射出第一光線u，如第3圖所 不。第2圖是根據本實施例之子光源裝置2〇之剖面視圖。 同樣示於第1圖，次絲裝置3係設置社絲裝置2 士 ’並且具有第二出光面32。第二出光面32係遠離第一出 22 ’並且特別地，第二出光面32上包含至少一出光區 翻&/每一出光區域34係位於至少二子光源裝置20之一個 T鄰9接ΐ上。次統裝置3從至少—出光區域34射出第二光線 為說明方便，第1圖僅繪示其中—個出光區域。每一 杜^源^^出的第—光線U會⑽次光源3之第二導光元 件38,如第2圖所示。 π υ 於一具體實施例中，如第1圖所示，每 == 元件24以及第-導光:件=第- 光與芦m —導光層262、第—光學層264以及第二 光^ 第;導光層262係位於第一光學層264及第二 第第—光學層264提供第—出光面22。例 262 第一光學層264係形成於第—導光層 ^ ,，第二光學層266係形成於第一導光層262 面上’因此每—子光源裝置2G所發出的[光線L1 201250342 於進入第一導光元件26後，將自第一光學層264提供之第— 出光面22射出。更進一步說，由於第一光學層264具有多個 第—開口 268。而每一子光源裝置20中，多個第一發光元件 24發射第一光線L1射入第一導光元件26。特別說明的是， 如第3圖所示，因為第一光學層264與第二光學層266之折 射，小於第一導光層262之折射率，致使第一光線[1在第一 ，光元件26内全反射前進。而多個第一開口 268會破壞第一 ^線L1在第一導光元件26内全反射前進的狀態，因此在第 光線L1遇到第一開口 268時，便會由第一開口 268射出， 亦即從第一出光面22射出。故第一導光元件26之實施形態 =如與士纖形態相似，可使第一光線L·在第一導光元件26 g 全反射前進，並同時進行混光，而於第一光學層264上再設 個第一開口 268 ,此些第一開口 268會破壞第一光線L1 導光元件26内全反射前進的狀態，因此第一光線L1 在遇到第一開口 268時，便會由第一開口 268 混光完全且細紐的平面統。 成為 八=一具體實施例中，如第3圖所示，第一導光元件26包 側邊260以及相對於第一側邊260之第二側邊261。 子光源農置20中，多個第一發光元件24係設置於第 一導光元件26之第一侧邊26〇處。 弟 w ^ Ϊ =圖是根據本發明之子光源裝置20之另一具體實施例 二^圖。如第4圖所示，於每—子光源裝置2()中多個第 元件24係設置於第一導光元件2ό之第二側邊261 處。 裝署具體實施例中，如第1圖中所示，於每一子光源 止-彼％ ’多個第一發光元件24係同時對應設置於第一導 先兀件26之第—側邊26〇與第二側邊261。 201250342 ”ΪΓ具體實施例t，如第1 _示，次光源裝置3包含 ^勺乂光元件m導歧件38。第二導光元件 第二導光層382、第三光學層384以及第四光學声 w二二1 光層382位於該第三光學層384及該第四光學i U間1三光學層384提供第二出光面％。例如， 3所:，第三光學層384係形成於第二導光層382之上^ =，第四光學層380係形成於第二導光層382之下表面 撕同*樣第1圖’第三光學層384具有多個第二開口 i Λ Λ第二開σ 388對應至少―出光區域…多^ 第-發先讀36用以發射第二光線L2射人 1 i二與&光學層386之折射率小於第 口m第2光層382内)全反射前進且 開口 38=時’從第二開口 388所對應 =第二 的；=的^3 =::J置2之鄰接 組1整體的均齊度。於—且㈣ 根，本發明之背光模 36係設置於"光元们8之“邊38^二發光元件 於另一具體實施例中，多個筮-恭土 二導光元件38之相對於第二之 處置於第 設置r第之第多一：3= 3，時職 第側邊380與第二侧邊381處。 201250342 比為ίΐ際^中二第—發光元件24以及第二發光元件36 於ii匕第1圖所示’多顆第一發光元件24設置 同安置在第一導光元件26之-側邊 ίΪ"7,先元件36設置於軟性電路板362上，一同安 置在第二導s元件38之—侧邊處。 伊中’多個第一開口 268係藉由雷射光束根據 圖按…、射第-光學層264,進而破壞第一光學層264而 個388同樣地係藉由雷射光束根據預設圖 二光:層384或第四光學膚386 ’進而破壞第三光 二第四/學層386而形成。針對不同尺寸液晶面 板僅而5十其好多個第—開口 268以及多個第二開口 388形 成的位置’再行自動化執行雷射光束照射破壞料光學層形 ，多個第-開σ 268以及多個第二開口 388。因此本發明之 背光模組1可達成光效率高、高職、高均齊度等要求，並 且具有製造成本低、針對不同尺寸液晶面板容易設計等 點。 此外，設置於軟性電路板242上之多顆第一發光元件24 整體厚度，以及設置於軟性電路板362上之多顆第二發光元 件36，可以設計在1 mm以下。第一導光元件26以及第二導 光元件38，可以設計在1 mm以下。因此本發明之背光模組 1可達到結構簡化、輕薄的要求。並且，由於根據本發明之 背光模組1其第一導光元件26及第二導光元件38實際上為 /專板型態元件，足見其可挽性尚，能輕易地配合外部'結^ 體，例如，根據本發明之背光模組1可直接貼附於支撐背板 上’組裝簡單並且無機構強度問題。201250342 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a back-light module. And in particular, the present invention relates to a backlight module having a dual layer illumination source architecture. [Prior Art] It is known that a liquid crystal display device displays an image by a liquid crystal panel. However, the liquid crystal panel itself does not emit light, and the light-emitting function must be achieved by a so-called backlight module. Therefore, the backlight module is an important component of the liquid crystal display device. Most of the current $-light modules use light-emitting diodes (he plays - (10) pool tons di0 (je), light source, its structure is roughly divided into direct-lit backlight module and edge-lit backlight module. Direct-lit backlight module It has the advantages of high light extraction efficiency, no need for light guide plates, fewer components, but also has the disadvantages of low uniformity of light and thicker modules. The direct type backlight module is divided into two types. The first type The direct type backlight module directly aligns the light emitting diodes in the light box. However, in order to fully mix the light emitting diodes, a light box of a certain thickness is required. In addition, the first type of direct type backlight module requires illumination. Diode Brewing: The second type of direct-lit backlight module is based on the first S ΐ ΐ ΐ 月 月 月 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安 安Space, and reduce hair ίί 型 式 direct type backlight module cost is higher 7 and = but to mix the first two light boxes with a certain thickness. The side, the main structure of the backlight module is illuminated by the light source imati, = then (for example: ribbing, expansion, anti Source reflector and external film 荨) First, the module (4) is equal to the 201250342 factor. Since the light source efficiency of the backlight module focuses on the microstructure of the light guide plate and its appearance design and the type of light source, how to enter the light guide plate g Efficient design, so that the overall brightness and light uniformity of the watch is considered as the main design considerations, the guide is still quite equal, and the edge-lit backlight module is still too heavy. The design of the microstructure on the optical board depends on the size of the liquid crystal panel. That is to say, the design of the light guide plate for the small-sized liquid crystal panel cannot be applied to the back and module of the large-size liquid crystal panel. For large-size LCD panels, The guide of the light-type backlight mode, the board is even composed of a plurality of small-sized light guides, which causes problems such as complicated overall structure, positioning of the light guide plate, reduction in assembly difficulty, reduction in mass production, and relatively high cost. The understanding of the prior art of the backlight module can be seen, when, the optical module architecture meets the requirements of the backlight module, and the uniformity Structure strength, structure simple ^ [Summary of the invention] Optical mode f and seed layer light source frame flip back size LCD panel is easy to design; and; for different heavy light boxes, the main optical components 2: optical module does not need to make The backlight module is generally H-shaped and has no filaments in the microstructure. [According to the present invention - the pr light source and the secondary light source source. The main light source device includes 丨 原装 原装 原装 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 2012 2012 2012 2012 2012 2012 2012 The first light is emitted from the front surface. The secondary light source device is disposed on the main light source ^, , ' and has a second light emitting surface. The second light emitting surface is away from the first light emitting surface and the first light emitting surface includes at least one light emitting region (exit Each light region is located at an adjacent position of at least two sub-light source devices. The secondary light source device emits a second light from at least the light exiting region. In a specific embodiment, each of the sub-light source devices includes a plurality of first light emitting regions. And a first light guiding element: each of the first light guiding elements comprises a first light guiding layer, a first optical layer and a second optical layer. The first light guiding layer is located between the first optical layer and the second optical layer And the refractive index of the first light guiding layer is greater than the refractive index of the first optical layer and the first optical layer, so that the embodiment of the first light guiding element is similar to the shape of the optical fiber, for example, and the light can be completely in the first light guiding element. Reflection ^ And the light is mixed at the same time, and a plurality of first openings are further disposed on the first optical layer, and the first openings may destroy the shape of the total reflection of the light in the first light guiding element, so the light is encountered When it reaches the first opening, it will be emitted from the first opening, and become a planar light source with complete light mixing and uniformity. In the specific implementation, the first light guiding element includes the first side and the first side of the riding side. a second side of the side. A plurality of first light-emitting elements are disposed on the first side, and the first light-emitting element includes a first side and a side opposite to the first side. The second side. The money-light-emitting element is disposed on the second side. In another concrete column f, the first light-guiding element includes a first side and a second side opposite to the first side. a plurality of first light-emitting trees are disposed on the first side and the second side. In the embodiment, the under-light source device comprises a plurality of second light-emitting elements 201250342 optical elements. The second light-guiding elements comprise second Light guiding layer, third light 2, fourth optical layer, second guiding layer _ between the third optical layer and the fourth light, and The refractive index of the light guiding layer is greater than the refractive index of the third optical layer and the fourth optical layer. In particular, the third optical layer has a plurality of second openings. The plurality of second openings correspond to at least the out-of-band. The fourth optical layer also has a plurality of second openings. The plurality of second openings correspond to at least one light exiting area. a. The backlight module according to another preferred embodiment of the present invention further includes a less-shading element. At least— The light-shielding element covers at least one adjacent gap of the two sub-light source devices. The backlight module according to another preferred embodiment of the present invention further includes a light-reflecting element, and the light-reflecting element is disposed under the at least two sub-light source devices. A backlight module according to another preferred embodiment of the invention, each of the first light guiding elements and comprising a light reflecting layer. A reflective layer is formed on the second layer. The advantages and spirit of the present invention will be further understood from the following detailed description of the invention. [Embodiment] The present invention provides a backlight module, and in particular, a backlight module according to the present invention has a two-layer light source architecture. Moreover, the backlight module according to the present invention achieves the advantages of high light extraction efficiency, high luminance, high uniformity, high mechanical strength, and simplified structure, and has the advantages of low manufacturing cost and easy design for different sizes of liquid crystal panels. Moreover, the backlight module according to the present invention does not require a heavy light box, so that the backlight module as a whole is relatively thin and light. The specific embodiments of the present invention are described in detail below in order to fully explain the features, the 201250342 Please refer to FIG. 1 and FIG. 2, which are schematic diagrams showing the structure of a backlight module 1 according to a preferred embodiment of the present invention. The components in Figure 1 are specifically added with perspective views to recognize their structural characteristics. Fig. 2 is a cross-sectional view of the backlight module 1 taken along the line A-A in Fig. 1 in the first drawing. As shown in Fig. 1, a backlight module 1 according to a preferred embodiment of the present invention includes a main light source device 2 and a secondary light source device 3. The main light source device 2 includes at least two sub-light source devices 20. At least two sub-light source devices 2 are located on the same horizontal plane and are disposed adjacent to each other. For convenience of description, the second diagram shows only two sub-light source devices 20. Each of the sub-light sources 2A has an individual first light-emitting surface 22, and the first light-emitting surface 22 is emitted from the first light-emitting surface 22, as shown in Fig. 3. Fig. 2 is a cross-sectional view of the sub-light source device 2 according to the present embodiment. Also shown in Fig. 1, the secondary yarn device 3 is provided with a silk apparatus 2' and has a second light-emitting surface 32. The second light exiting surface 32 is away from the first output 22' and, in particular, the second light exiting surface 32 includes at least one light exiting area & / each light exiting area 34 is located in a T adjacent 9 of the at least two sub-light source devices 20. on. The secondary device 3 emits the second light from at least the light exiting region 34. For convenience of description, FIG. 1 only shows one of the light exiting regions. The first light ray U of each of the multiplex sources will (10) the second light guiding element 38 of the secondary light source 3, as shown in Fig. 2. π υ In one embodiment, as shown in FIG. 1, each == element 24 and the first light guide: member = first light and rem light guide layer 262, first optical layer 264, and second light The first light guiding layer 262 is located on the first optical layer 264 and the second optical layer 264 to provide the first light-emitting surface 22 . In the example 262, the first optical layer 264 is formed on the first light guiding layer, and the second optical layer 266 is formed on the first light guiding layer 262. Therefore, each light source device 2G emits light [L1 201250342 After entering the first light guiding element 26, the first light exiting surface 22 provided from the first optical layer 264 is emitted. Furthermore, since the first optical layer 264 has a plurality of first openings 268. In each of the sub-light source devices 20, the plurality of first light-emitting elements 24 emit the first light L1 and enter the first light guiding element 26. Specifically, as shown in FIG. 3, because the refractive of the first optical layer 264 and the second optical layer 266 is smaller than the refractive index of the first light guiding layer 262, the first light [1 is at the first, the optical element 26 total reflections advance. The plurality of first openings 268 may destroy the state in which the first wire L1 is totally reflected in the first light guiding element 26, so when the first light ray L1 encounters the first opening 268, it is emitted by the first opening 268. That is, it is emitted from the first light exit surface 22. Therefore, the embodiment of the first light guiding element 26 is similar to the shape of the fiber, so that the first light L· can be totally reflected by the first light guiding element 26 g and simultaneously mixed, and the first optical layer 264 is A first opening 268 is further disposed, and the first openings 268 may destroy the state in which the total reflection in the light guiding element 26 of the first light L1 is advanced. Therefore, when the first light L1 encounters the first opening 268, the first light ray L1 is An opening 268 is fully integrated and the flat surface of the fine core. In a specific embodiment, as shown in FIG. 3, the first light guiding element 26 includes a side 260 and a second side 261 with respect to the first side 260. In the sub-light source 20, a plurality of first light-emitting elements 24 are disposed on the first side 26〇 of the first light guiding element 26. The younger w ^ Ϊ = figure is another embodiment of the sub-light source device 20 according to the present invention. As shown in Fig. 4, a plurality of first elements 24 are disposed in the second side edge 261 of the first light guiding element 2 in each of the sub-light source devices 2 (). In a specific embodiment, as shown in FIG. 1 , each of the plurality of first light-emitting elements 24 is simultaneously disposed on the first side 26 of the first lead-in element 26 at each of the sub-light sources. 〇 with the second side 261. 201250342 ”Specific embodiment t, as shown in FIG. 1 , the secondary light source device 3 includes a scooping element m guiding member 38. The second light guiding element second light guiding layer 382, the third optical layer 384 and the fourth The optical acoustic w 221 optical layer 382 is located between the third optical layer 384 and the fourth optical IU, and the third optical layer 384 provides a second illuminating surface %. For example, three: the third optical layer 384 is formed on Above the second light guiding layer 382, the fourth optical layer 380 is formed on the lower surface of the second light guiding layer 382. The first optical layer 384 has a plurality of second openings i Λ Λ The second opening σ 388 corresponds to at least the “light-emitting area”. The first-first reading 36 is used to emit the second light L2, and the refractive index of the optical layer 386 is smaller than that of the second optical layer 382. The total reflection advances and the opening 38 = the time 'corresponding from the second opening 388 = the second; = ^ 3 =: : J sets the uniformity of the entire adjacent group 1 of 2. In the - (4) root, the present invention The backlight module 36 is disposed on the "edge 38" two light-emitting elements of the "light source" 8 in another embodiment, and the plurality of 筮- 恭 二 2 light-guide elements 38 are placed relative to the second place The first set of the first plurality r a: 3 = 3, when the level of the second side edge 380 and side edge 381. 201250342 is the second light-emitting element 24 and the second light-emitting element 36. The plurality of first light-emitting elements 24 are disposed on the side of the first light-guiding element 26 as shown in FIG. The first component 36 is disposed on the flexible circuit board 362 and disposed together at the side of the second conductive s component 38. In the Yizhong, the plurality of first openings 268 are caused by the laser beam according to the image, the first optical layer 264, and the third optical layer 264 is destroyed by the laser beam according to the preset image. Light: Layer 384 or fourth optical skin 386 'and then destroys the third light two fourth/learning layer 386 to form. For the different size liquid crystal panels, only a plurality of the first openings 268 and the positions of the plurality of second openings 388 are formed, and the laser beam is irradiated to destroy the optical layer, and the plurality of first-open σ 268 and more are automatically performed. Second openings 388. Therefore, the backlight module 1 of the present invention can achieve the requirements of high light efficiency, high occupation, high uniformity, etc., and has low manufacturing cost and easy design for different size liquid crystal panels. In addition, the overall thickness of the plurality of first light-emitting elements 24 disposed on the flexible circuit board 242 and the plurality of second light-emitting elements 36 disposed on the flexible circuit board 362 can be designed to be 1 mm or less. The first light guiding element 26 and the second light guiding element 38 can be designed to be 1 mm or less. Therefore, the backlight module 1 of the present invention can achieve the requirements of simplified structure and lightness. Moreover, since the first light guiding element 26 and the second light guiding element 38 of the backlight module 1 according to the present invention are actually/special-plate type elements, it is sufficient to be able to cooperate with the external 'connection^ For example, the backlight module 1 according to the present invention can be directly attached to the support back plate 'is simple to assemble and has no mechanical strength problems.
同樣示於第1圖，根據本發明之另一較佳具體實施例之 背光模組1進一步包含至少一遮光元件4。為說明方便，第J 12 201250342 其中—個遮光元件4。特別地，每—遮光元件4係 早ί二子光源裝置2之—個鄰接的空隙，用以遮住安置 裝置乂之「鄰/的空隙處之第-發光元 弟九線L1。出光區域34位在遮光元件4上方。 ，一具體實施例中，第四光學層386也具 ΐ少-8出第四/學Λ386之多個第丄開口 388二 ί L ΐ域第四光學層386之多個第二開口 388的 ΙΚίΠΓΓ學層3"之多個—第二 匕 光元件4:射從出“更3::7開口⑽射出’進而由遮 的實體ΪΪ例中，出光區域34的寬度等於遮光元件4 母^ 的寬度大於其所覆蓋至少二子光源 裝置2之一個鄰接的空隙，如第丨圖所示。 i ® ’根據本發明之另—較佳具體實施例之 Γ、-二包含反光（件5。反光元件5係安置於至 (一山丄'、裝置2下方’用以反射部分外細第一光線L1朝 第一出光面22前進。 5 ®，係根據本㈣之另—較佳具體實施例之 之外觀示意圖。第5圖中之各元件特別加上透視 構特性°第5圖所_示之背光模組1其架構大 致上與第1圖所綠不之背光模組！相同。第5圖中具有與第 1圖相同號碼標記之元件，有相同或類似的結構以及功能， 3：”做贅述。下文僅對第5圖崎示之背光模組i與第 1圖所繪示之背光模組1不同處進行說明。 如第5圖所示，根據本發明之另一較佳具體實施例之背 201250342 ίΐΐ? ’其每一第一導光元件26並且包含反光層269。反 认势f係形成於第二光學層266底面，用以反射部分外浪 的第一光線L1朝第一出光面22前進。 第—發光元件24可以嵌人第一導光元件 在第二導光422669±及彡㈣—發統件24的轉佈線印刷 本發明之詳細說明，可以清楚了解根據 前^_=f讀背光模組先 具有製造她、物狀伽術㈣π 、十，太==較佳具財關之詳述，騎望缺加清扑 =2::=::=_;ί 涵蓋各種改變及具彳目+ 也，其目的是希望能 圍的中請之專利範 據上述的說明作最寬廣 j專她11的料應該根 變以及具相紐的安排。、轉’ 1致使翻蓋所有可能的改 201250342 【圖式簡單說明】 九第1圖係本發明背光模組之一較佳具體實施例之架構示 意圖。 第2圖係第1圖之背光模組沿第1圖中的α·α線之剖面 視圖。 第3圖是根據本發明子光源裝置實施例之剖面視圖。 - ㈤第4圖是根據本發明子光源裝置之另一實施例之剖面視 圖0 一第5圖係本發明背光模組之另一較佳具體實施例之架構 不思圖。 【主要元件符號說明】 •背光模組 2:主光源裝置 20:子光源裝置 22 :第一出光面 24:第一導光元件 242 :軟性電路板 26:第一導光元件 260 .第一侧邊 261:第二侧邊 262 :第一導光層 264 :第一光學層 266 ··第二光學層 268:第-開口 3:次光源裝置 32:第二出光面 34 :出光區域 15 201250342 36 :第二發光元件 362 :軟性電路板 38 :第二導光元件 380 :第一側邊 381 :第二側邊 382 :第二導光層 384 :第三光學層 386 :第四光學層 388 :第二開口 4:遮光元件 5:反光元件 269 :反光層 L1 :第一光線 L2 :第二光線Also shown in Fig. 1, a backlight module 1 according to another preferred embodiment of the present invention further includes at least one shading element 4. For convenience of explanation, J 12 201250342 among them is a shading element 4. In particular, each of the light-shielding elements 4 is an adjacent gap of the two sub-light source devices 2 for covering the first light-emitting element nine-line L1 of the adjacent/space of the mounting device 。. Above the shading element 4. In a specific embodiment, the fourth optical layer 386 also has a plurality of 丄 -8 out of the fourth Λ Λ 386 丄 388 388 388 388 ί 第四 第四 第四 第四 第四The second opening 388 is a plurality of second light-emitting elements 4: the second light-emitting element 4 is emitted from the "more 3::7 opening (10)" and then by the hidden entity, the width of the light-emitting area 34 is equal to the light-shielding The width of the element 4 is greater than the adjacent gap of at least the two sub-light source devices 2 covered by it, as shown in the figure. i ® 'in accordance with another embodiment of the present invention - bis, - two includes reflection (member 5. Reflective element 5 is placed in (one mountain below, device 2 below) for reflecting part of the outer first The light beam L1 is advanced toward the first light-emitting surface 22. 5 ® is a schematic view of the appearance of the preferred embodiment according to the present invention. The components in FIG. 5 are particularly provided with a see-through structure. The backlight module 1 has the same structure as the backlight module of the green image in Fig. 1. In Fig. 5, the components having the same reference numerals as in Fig. 1 have the same or similar structures and functions, 3:" In the following, only the backlight module i of FIG. 5 is different from the backlight module 1 shown in FIG. 1. As shown in FIG. 5, another preferred embodiment according to the present invention is shown. The back of the example 201250342 ' ' ' ' each of the first light guiding elements 26 and includes a light reflecting layer 269. The counter-recognition potential f is formed on the bottom surface of the second optical layer 266, for reflecting the first light L1 of the partial outer wave toward the first The light-emitting surface 22 is advanced. The first light-emitting element 24 can be embedded in the first light-guiding element at the second light guide 422. 669±和彡(四)—Transfer wiring of the hairline 24 The detailed description of the invention can clearly understand that the backlight module according to the previous ^_=f first has to manufacture her, the object gamma (four) π, ten, too == The details of the good fortune, the lack of clearing and jumping = 2::=::=_; ί covers all kinds of changes and attention + also, the purpose is to hope that the patents of the patents can be The widest j special material for her 11 should be rooted and have a new arrangement. Turn '1 to make all possible changes to the flip cover 201250342 [Simplified illustration] IX 1 is a better specific backlight module of the present invention 2 is a cross-sectional view of the backlight module of Fig. 1 along the α·α line in Fig. 1. Fig. 3 is a cross-sectional view of an embodiment of the sub-light source device according to the present invention. 4 is a cross-sectional view of another embodiment of a sub-light source device according to the present invention. FIG. 5 is a schematic diagram of another preferred embodiment of the backlight module of the present invention. [Main component symbol description] • Backlight Module 2: main light source device 20: sub-light source device 22: first light-emitting surface 24: first light guide Element 242: flexible circuit board 26: first light guiding element 260. First side 261: second side 262: first light guiding layer 264: first optical layer 266 · second optical layer 268: first opening 3: secondary light source device 32: second light-emitting surface 34: light-emitting region 15 201250342 36: second light-emitting element 362: flexible circuit board 38: second light-guiding element 380: first side 381: second side 382: Two light guiding layer 384: third optical layer 386: fourth optical layer 388: second opening 4: light blocking element 5: light reflecting element 269: light reflecting layer L1: first light L2: second light