M329179 學962m79號，96年I2月修正頁 . 八、新型說明： 【新型所屬之技術領域】 本創作係關於一種直下型背光模組，尤指一種適用於 液晶面板及平面顯示器之直下型背光模組。 5 " 【先前技術】 ， 隨著薄膜電晶體液晶顯示器（TFT-LCD )製作技術的 φ 進步，以其具有輕、薄、省電與無輻射等優點，而使得薄 膜電晶體液晶顯示器廣泛地應用於個人數位助理、筆記型 10電腦、行動電話與電視等產業上，但由於液晶面板並非自 發光型之顯示裝置，是故需配合背光模組所提供之光源， 才能夠顯示液晶面板所需表現的畫面。 請參考圖1，其顯示已知之直下式背光模組的剖面結 構示意圖，背光模組1包括背板丨丨、反射片12、光源13、擴 I5散板支撐結構14、擴散板15、下擴散片161、集光片162、 上擴政片163專光學膜片16與背光上框17等部分。光學膜片 參 16及擴散板15係藉由塞設於背板"與背光上框。之間的擴 一 散板支撐結構14而固定住。 然而由於目前的薄膜電晶體液晶顯示器已朝向大尺 2〇寸發展，背光模組丨中光學膜片16的尺寸亦相對變大，而在 薄膜電晶體液晶顯示器經過溫度、澄度等環境條件較嚴苛 的情況下進行長時間點燈或靜置之後，常因溫度、渔度盘 材料本身重力等潛在因素影響，導致背光模組W的^膜 5 M329179 片16產生各種翹曲與變形，進而發生背光模組1顯示面不均 勻的現象，導致其整體光學品質降低。 晴荟考圖2 A，其顯示習知技術為了解決上述問題之背 光模組的剖面結構示意圖。如圖中所示，其擴散板15係固 5定於背板21與背光上框17之間而無擴散板支撐結構14之組 件，且擴散板15上係設置有一凸塊151，擴散板15係藉由凸 塊151與支撐裝置22之扣合以及支撐裝置22與背板2丨之扣 合，以降低擴散板15因自身重量所產生的變形，而達到抑 制光學膜片16的變形量，並進而降低背光模組2顯示面不均 10 勻的現象。 另明參考圖2B，其顯示圖2A顯示的背光模組組裝時可 能產生的誤差。各組件製造時會產生少許誤差（占xl、5 X: ^ x3占x4、占yl、占y2、占y3、占y4)，若組件數目越 多則伴隨而來的累積誤差（Σ L、Σ 其中Σ 占 15 χ1+5χ2+5χ3+5χ4, ^y=(5yl+^y2+(5y3+(Jy4) 也會增加。此情況於進入量產後會益發嚴重，因為在持續 生產過程中會逐漸磨損模具，而使得誤差漸趨增加，因此 導致整體結構結合不良、產生異音、磨損甚至斷裂之情事。 、繼而’圖2A所示之支撐裝置22在材f上與凸塊i5i係 有差二，因而造成光照射在不同的材料表面時產生不同的 折射率，，使該結構區域產生暗帶或是其他光學品質不良之 M329179 此外，上述月光杈組2在組裝上需耗費人力與時間， 即必須先將支«置22與背板21扣合，再將凸塊151與支撐 裝置22結合，故而增加其製作成本。 5【新型内容】 本創作提供一種直下型背光模組，包括：一背板以及 一擴散板。背板包括至少一固定孔，且具有一容置空間；M329179 Learning 962m79, 96th I2 month revision page. VIII. New description: [New technical field] This creation is about a direct type backlight module, especially a direct type backlight module suitable for liquid crystal panels and flat panel displays. group. 5 " [Prior Art], with the advancement of thin film transistor liquid crystal display (TFT-LCD) fabrication technology, with its advantages of lightness, thinness, power saving and no radiation, the thin film transistor liquid crystal display is widely used. It is used in personal digital assistants, notebook 10 computers, mobile phones and televisions. However, since the liquid crystal panel is not a self-illuminating display device, it is necessary to match the light source provided by the backlight module to display the liquid crystal panel. The picture of performance. Please refer to FIG. 1 , which shows a cross-sectional structural diagram of a known direct type backlight module. The backlight module 1 includes a back plate 丨丨, a reflective sheet 12 , a light source 13 , an expanded I5 bulk supporting structure 14 , a diffusing plate 15 , and a lower diffusion . The sheet 161, the light concentrating sheet 162, the upper expansion sheet 163, the optical film 16 and the backlight upper frame 17 and the like. The optical film ginseng 16 and the diffusion plate 15 are placed on the back plate " The gap between the bulk support structures 14 is fixed. However, since the current thin film transistor liquid crystal display has been developed toward a large size, the size of the optical film 16 in the backlight module is relatively large, and the environmental conditions such as temperature and roughness of the thin film transistor liquid crystal display are relatively high. After a long time lighting or standing under severe conditions, it is often affected by potential factors such as temperature and gravity of the fishing disc material, resulting in various warpage and deformation of the film 5 M329179 of the backlight module W. The phenomenon that the display surface of the backlight module 1 is uneven is caused, resulting in a decrease in the overall optical quality. Figure 2A shows a schematic cross-sectional view of a backlight module in order to solve the above problems. As shown in the figure, the diffusion plate 15 is fixed between the back plate 21 and the backlight upper frame 17 without the assembly of the diffusion plate supporting structure 14, and the diffusion plate 15 is provided with a bump 151, and the diffusion plate 15 is disposed. The buckle 151 is engaged with the supporting device 22 and the supporting device 22 is engaged with the backing plate 2 to reduce the deformation of the diffusing plate 15 due to its own weight, thereby suppressing the deformation of the optical film 16. Further, the phenomenon that the display surface unevenness of the backlight module 2 is uniform is reduced. Referring additionally to Figure 2B, there is shown an error that may be generated when the backlight module shown in Figure 2A is assembled. When manufacturing each component, there will be a slight error (accounting for xl, 5 X: ^ x3 for x4, for yl, for y2, for y3, for y4), and if the number of components is larger, the cumulative error will accompany (Σ L, Σ Σ 15 15 χ 1+5 χ 2+5 χ 3 + 5 χ 4, ^ y = (5 yl + ^ y 2+ (5 y 3 + (Jy4) will also increase. This situation will be more serious after entering mass production, because in the continuous production process will gradually wear the mold, and The error is gradually increased, thus causing poor overall structure, abnormal noise, wear and even breakage. Then, the support device 22 shown in Fig. 2A is inferior to the bump i5i on the material f, thus causing light. When the illumination is applied to different materials, different refractive indexes are generated, which causes dark bands or other optical defects in the structure. M329179 In addition, the above-mentioned moonlight group 2 requires labor and time in assembly, that is, it must be first supported. «The 22 is fastened to the back plate 21, and the bump 151 is combined with the support device 22, thereby increasing the manufacturing cost. 5 [New content] The present invention provides a direct type backlight module including: a back plate and a diffusion The back plate includes at least one solid Holes and having an accommodation space;
擴散板係設置於上述容置空間上方，該擴散板包括有一平 板及至少一凸塊，其中凸塊係與平板為一體成型，並以一 10 端固設連接於平板，且凸塊之另一端係形成一固定部。其 中，固定孔係對應凸塊設置於背板，且固定部係卡合於固 定孔中。 ' 本發明另提供一種直下型背光模組，包括··一背板、 =上框以及一擴散板。上框包括至少一固定孔，上框係與 15背板夹合形成一容置空間；擴散板係設置於容置空間上 方，該擴散板包括一平板及至少一凸塊，其中凸塊係與平 板為一體成型，並以一端固設連接該平板，且凸塊之另一 端係形成至少一固定部。其中，固定孔係對應凸塊設置於 上框’且固定部係卡合於固定孔中。 20 本發明另提供一種直下型背光模組，包括：一背板、 一上框、一支撐件以及一擴散板。上框係與背板夾合形成 谷置空間，支撐件包括至少一固定孔，且支撐件係容置 於背板與上框之間；擴散板係設置於容置空間上方，該擴 散板包括一平板、及至少一凸塊，其中凸塊係與平板為一 7 M329179 體成型，並以一端固設連接於平板，且凸塊之 成至广㈣部。其中’固^孔係對應凸塊設置於支撐件: 且固定部係卡合於固定孔中。 、。在本創作中，上述凸塊之形狀不限定為特定形狀，但 5 X圓开形、楔形或多角形之剖面形狀的柱體為較佳。 其次’凸塊配置之位置亦不限定於特定位置，然以位於平 板之中心、平板之邊緣或平均分布於平板之上為較佳。另 外，凸塊之數目亦不限定為特定數目，當其應用於小尺寸 2液晶顯示H時，其可為單數，㈣著其應用之液晶顯示 10益尺寸趨大，其之數目亦可漸趨增加以提供較佳的支撐 力，但亦可在背光模組整體強度之考量下，降低凸塊之數 目以降低制之©定孔數目1維設置@定孔之背板、支 撐件或上框之強度。 上述固定部可為一個或多個爪形、工字形之扣件，而 15可=口於對應各個固定部之固定孔中，或者固定部亦可為 一平板件，而可透過一黏著物黏著固定。 此外，在本創作中，固定孔亦可包括一第一開口及一 第二開口，第一開口係鄰接於第二開口，且第一開口之面 積係小於第二開口之面積，因此固定孔並提供凸塊可卡合 20 於第一開口中。 然而’本創作之支撐件設置位置可塞置在容置空間邊 緣處以供支撐擴散板，其之材質不限定為單一材料，然較 佳係為塑膠或壓克力。 M329179 外=1述發光元件係為提供光源，然其可為 ==)、熱陰㈣光管(咖）、發光 致發光元件（EL)之其-，發光元件 一，目=限U特枝目，其係端視於所應用之液晶顯 不為尺寸與所需光源強度。 +上述光學膜片係為調整光源之光學性質的單層或多 層薄膜’且其可為下擴散片、集光片及上擴散片之直 任意集合。 成The diffuser plate is disposed above the accommodating space, the diffuser plate includes a flat plate and at least one bump, wherein the bump is integrally formed with the flat plate, and is fixedly connected to the flat plate by a 10 end, and the other end of the convex block A fixing portion is formed. The fixing holes are provided on the back plate corresponding to the bumps, and the fixing portions are engaged in the fixing holes. The invention further provides a direct type backlight module, comprising: a back plate, an upper frame and a diffusion plate. The upper frame includes at least one fixing hole, and the upper frame is combined with the 15 back plate to form an accommodating space; the diffusing plate is disposed above the accommodating space, the diffusing plate includes a flat plate and at least one convex block, wherein the convex block is The flat plate is integrally formed, and the flat plate is fixedly connected at one end, and the other end of the bump is formed with at least one fixing portion. The fixing hole corresponding bump is disposed in the upper frame ‘ and the fixing portion is engaged in the fixing hole. The invention further provides a direct type backlight module, comprising: a back plate, an upper frame, a support member and a diffusion plate. The upper frame is combined with the back plate to form a valley space, the support member includes at least one fixing hole, and the support member is disposed between the back plate and the upper frame; the diffusion plate is disposed above the accommodation space, and the diffusion plate includes a flat plate and at least one bump, wherein the bump and the flat plate are formed by a body of 7 M329179, and are fixedly connected to the flat plate at one end, and the bumps are formed into a wide (four) portion. Wherein the fixing hole corresponding protrusion is disposed on the support member: and the fixing portion is engaged in the fixing hole. ,. In the present creation, the shape of the above-mentioned bump is not limited to a specific shape, but a column having a 5 X circular shape, a wedge shape or a polygonal cross-sectional shape is preferable. Secondly, the position of the bump arrangement is not limited to a specific position, but it is preferably located at the center of the flat plate, at the edge of the flat plate, or evenly distributed over the flat plate. In addition, the number of the bumps is not limited to a specific number. When it is applied to the small-size 2 liquid crystal display H, it may be singular, and (4) the liquid crystal display of the application thereof may have a larger size, and the number thereof may gradually become larger. Increase to provide better support, but also reduce the number of bumps to reduce the number of fixed holes in the overall strength of the backlight module to reduce the number of fixed holes 1 dimension setting @ fixed hole back plate, support or upper frame Strength. The fixing portion may be one or more claw-shaped and I-shaped fasteners, and 15 may be in the fixing hole corresponding to each fixing portion, or the fixing portion may also be a flat piece, and may be adhered through an adhesive. fixed. In addition, in the present invention, the fixing hole may further include a first opening and a second opening, the first opening is adjacent to the second opening, and the area of the first opening is smaller than the area of the second opening, so the fixing hole is A bump is provided to be snapped into the first opening. However, the support member of the present invention can be placed at the edge of the accommodating space for supporting the diffusing plate, and the material thereof is not limited to a single material, but it is preferably plastic or acrylic. M329179 outer = 1 light-emitting element is to provide a light source, but it can be ==), hot negative (four) light pipe (coffee), luminescent element (EL) -, light-emitting element one, the target = limit U special branch The purpose is that the liquid crystal applied is not the size and the required light source intensity. The above optical film is a single or multi-layer film 'which adjusts the optical properties of the light source' and may be any straight collection of the lower diffusion sheet, the light collection sheet and the upper diffusion sheet. to make
是故，本創作之背光模組係將凸塊與背板、支撐件或 10 ^框以-體成型方式製作.，以節省組件數目，從而簡化組 I程序與時間、以及降低組件之整體公差。此外，組件數 、目之卩牛低亦使組件結合處數目降低，而在組件結合處對背 光杈組提供之光源品質具有一定影響，因此，本創作之平 面顯示器及其背光模組亦可提供光學品質（例如均勻性等） 15較佳之光源，以增進其應用之液晶顯示器的顯示品質。 【實施方式】 首先’請參考圖3，其顯示本創作第一較佳實施例之 直下型月光模組的剖面結構示意圖，為簡明顯示本實施例 20 之結構，是故在圖面中僅示範兩端邊緣與中央結構。 如圖中所示，背光模組3主要包括：一殼體3 1、複數 個發光元件32、複數層光學膜片35、以及一擴散板34。 在本實施例中，殼體31係由一背板311及一上框312所 組成，背板311及上框312係在預定容置擴散板34處之邊緣 9 -M329179 口 P刀火3 並在預疋谷置擴散板34處之中央處形成一容置 空間3 3 ’而背板3 11上更開設有一固定孔3丨3。 •上述發光元件32係容置在此容置空間33中，且其之數 目、光源種類並不限定，本實施例僅以6個冷陰極螢光管 5 ( CCFL )為示例。 上述擴散板34係夾持於背板311及上框312之間，且擴 散板34包括一平板343、及至少一凸塊341，凸塊341係與平 板343—體成型製作於平板343之中心，且凸塊341係以一端 固設連接於平板343，而凸塊341之另一端（開放端）係形 10成至少一固定部342以供固定。在本實施例中，凸塊341設 置於平板343之中心處，然於其他實施例中，凸塊341亦可 設置於平板343之邊緣處。 此外，本實施例之固定部342係為複數個爪形扣件， 且凸塊341係插設於背板311上對應之固定孔313中，而固定 U部342係在壓入固定孔313之後扣合於其中，以使本實施例 之擴政板34除了在端緣處可得到由殼體3丨所提供之支撐力 之外，更透過固定部342與固定孔313扣合而得到提供於擴 散板34中央處之支撐力。因此，在本實施例中，減少擴散 板34因重力因素造成之形變。 20 上述光學膜片35係為三層光學薄膜之結構，其包括有 一第一擴散片（圖中未示）、一集光片（圖中未示）、一 第二擴散片（圖中未示），而光學膜片35係貼設於平板 之上。 -M329179 是故，本實施例之光學膜片35的平整性不受到擴散板 34因重力下垂產生的形變之影響’從而提供光學品質較佳 之光源，以增進其應用之液晶顯示器的顯示品質，且因本 實施例之凸塊341係與平板343 一體成型製作，是故組件數 5目較少，從而可簡化組裝程序、降低組裝時間、以及降低 組件之整體公差。 其次，請參考圖4，其顯示本創作第二較佳實施例之 月光模組的剖面結構示意圖’為簡明顯示本實施例之結 構’是故在圖面中僅示範兩端邊緣與中央結構。 10 在本實施例中，為省略篇幅，故而僅針對本實施例與 上一實施例相異之處作詳細說明。 如圖中所示，擴散板44包括有一平板443、及一凸塊 441上，凸塊441係設置於平板443中心處，而殼體41則包括 有一背板411及一上框412，在背板411上對應凸塊441處更 15 設置有一固定孔413。 於本實施例中，在凸塊441開放端上所形成之一固定 部442係為一工字形扣件，本實施例之固定孔413包括一第 一開口 414及一第二開口 424以使固定部442可滑動地卡合 於第一開口 414中，請參考圖5A、圖5B以進一步了解本實 2〇 施例凸塊441扣合於背板411之固定孔413之步驟。 如圖5A中所示，首先，將凸塊441之固定部442穿入第 二開口 424並容置於其中，其次，固定部442被施力而推入 第一開口 414中以扣合。 11 -M329179 第四較Therefore, the backlight module of this creation is made by bending the bump and the back plate, the support member or the 10^ frame to save the number of components, thereby simplifying the group I program and time, and reducing the overall tolerance of the component. . In addition, the number of components and the low number of yak also reduce the number of component joints, and the combination of components has a certain influence on the quality of the light source provided by the backlight unit. Therefore, the flat display and the backlight module of the same can be provided. Optical quality (eg, uniformity, etc.) 15 preferred light source to enhance the display quality of liquid crystal displays for which it is applied. [Embodiment] First, please refer to FIG. 3, which shows a cross-sectional structural diagram of a direct-type moonlight module according to a first preferred embodiment of the present invention. The structure of the embodiment 20 is shown in a simplified manner, so that only the demonstration is shown in the drawing. Both ends and a central structure. As shown in the figure, the backlight module 3 mainly includes a casing 31, a plurality of light-emitting elements 32, a plurality of optical films 35, and a diffusion plate 34. In this embodiment, the housing 31 is composed of a back plate 311 and an upper frame 312. The back plate 311 and the upper frame 312 are at the edge of the predetermined receiving diffuser plate 34 - M329179 mouth P knife fire 3 An accommodating space 3 3 ′ is formed at a center of the pre-groove diffusing plate 34 , and a fixing hole 3 丨 3 is further formed on the back plate 3 11 . The light-emitting element 32 is housed in the accommodating space 33, and the number thereof and the type of the light source are not limited. In the present embodiment, only six cold cathode fluorescent tubes 5 (CCFL) are exemplified. The diffusion plate 34 is sandwiched between the back plate 311 and the upper frame 312, and the diffusion plate 34 includes a flat plate 343 and at least one protrusion 341. The protrusion 341 is integrally formed with the flat plate 343 at the center of the flat plate 343. The bump 341 is fixedly connected to the flat plate 343 at one end, and the other end (open end) of the bump 341 is formed into at least one fixing portion 342 for fixing. In the present embodiment, the bump 341 is disposed at the center of the flat plate 343. However, in other embodiments, the bump 341 may also be disposed at the edge of the flat plate 343. In addition, the fixing portion 342 of the embodiment is a plurality of claw-shaped fasteners, and the protruding block 341 is inserted into the corresponding fixing hole 313 of the back plate 311, and the fixing U portion 342 is pressed after the fixing hole 313 is pressed. The fastening board 34 of the present embodiment is provided in addition to the supporting force provided by the housing 3 at the end edge, and is further engaged with the fixing hole 313 through the fixing portion 342. The supporting force at the center of the diffusion plate 34. Therefore, in the present embodiment, the deformation of the diffusion plate 34 due to the gravity factor is reduced. The optical film 35 is a three-layer optical film structure, and includes a first diffusion sheet (not shown), a light collecting sheet (not shown), and a second diffusion sheet (not shown). And the optical film 35 is attached to the flat plate. -M329179 Therefore, the flatness of the optical film 35 of the present embodiment is not affected by the deformation of the diffusion plate 34 due to the sag of gravity, thereby providing a light source of better optical quality to enhance the display quality of the liquid crystal display to which it is applied, and Since the bump 341 of the present embodiment is integrally formed with the flat plate 343, the number of components is less than 5 mesh, thereby simplifying the assembly process, reducing the assembly time, and reducing the overall tolerance of the assembly. Next, please refer to FIG. 4, which shows a cross-sectional structural view of the moonlight module of the second preferred embodiment of the present invention. The structure of the present embodiment is shown in a simplified manner. Therefore, only the two end edges and the central structure are exemplified in the drawing. In the present embodiment, in order to omit the space, only the differences between the present embodiment and the previous embodiment will be described in detail. As shown in the figure, the diffuser plate 44 includes a flat plate 443 and a bump 441. The bump 441 is disposed at the center of the flat plate 443, and the housing 41 includes a back plate 411 and an upper frame 412. A fixing hole 413 is disposed on the corresponding protrusion 441 of the board 411. In this embodiment, the fixing portion 442 formed on the open end of the bump 441 is an I-shaped fastener. The fixing hole 413 of the embodiment includes a first opening 414 and a second opening 424 for fixing. The portion 442 is slidably engaged with the first opening 414. Referring to FIG. 5A and FIG. 5B, the step of attaching the protrusion 441 of the embodiment to the fixing hole 413 of the back plate 411 is further understood. As shown in Fig. 5A, first, the fixing portion 442 of the projection 441 is inserted into the second opening 424 and accommodated therein, and second, the fixing portion 442 is biased and pushed into the first opening 414 to be engaged. 11 -M329179 Fourth comparison
此外’請參考_A、6B 佳實施例之背光模組示意圖。 H 乍第二 當^作所則之顯w尺寸增加時，凸塊4 二分=Γ增加，如圖6A中所示，凸塊⑷平 積，_此而圖6B中顯示較大之凸塊441剖面面 ί背=?趣曲變形力之結構數目與面積，而減 輕月2模組4顯示面不均勻的現象。 -光iW凊參考圖7，其顯示本創作第五較佳實施例之 :編且的剖面結構示意圖，為簡明顯示本實施例之結 疋故在圖面中僅示範兩端邊緣與中央結構。 ，本Μ施例中，為省略篇幅，故而僅針對本實施例與 上一實施例相異之處作詳細說明。 /、 15 口本實加例之凸塊541的剖面形狀可為以下其中一種： 圓形、方形、楔形或多角形，且其之固定部542係為一平板 件，而可透過一黏著物56黏著固定於背板511。 +又，請參考圖8，其顯示本創作第六較佳實施例之背 光杈組的剖面結構示意圖，為簡明顯示本實施例之結構， 是故在圖面中僅示範邊緣之結構。 相較於前一實施例，本實施例之背光模組6更包括一 20支撐件67，其係容置於背板611與上框612之間，用以支撐 擴政板64。在平板643 —表面上的邊緣處則設置有一凸塊 641 ’凸塊641之一端係形成複數個爪形扣件形狀之固定部 642 °而在支撐件67上對應凸塊641處設置有一固定孔613， 以供固定部642扣合於其中。 12 M329179 土… 5“㈣9所示之本創作第七較佳實施例之背 光模組的剖面結構示咅圖，μ 一 a.,^ 為間明顯示本實施例之結構， 疋故在圖面中僅示範邊緣之結構。 〃士《中所不，相較於上一實施例，本實施例之凸塊％ 係設置於平板743相對之另 .^ L A ^ 了之另一表面上的邊緣處，故而固定孔 713之s位置係在上框712之對應凸塊μ處。 了故由上述中可以得知，本創作係透過與擴散板一 體成1之凸塊與背板、支撐朱 克撐件或上框扣合，以增加對擴散 ^ 芽w'、少組件之數目，因此在達到提供光學品質 較佳之光源’以增進其應用之平面顯示器的顯示品質之同 時，亦可簡额m降低組裝_ 1 整體公差。 -> 上述實施例僅係為了方便說明而舉例而已，本創作所 15 主張之權利範圍自應以中請專利範圍所述為準，而非僅限 於上述實施例。 【圖式簡單說明】 圖1係習知之直下式背光模組的剖面結構示意圖。 圖2A係習知之直下式背光模組的剖面結構示意圖。 20圖2B係圖2A之背光模組組裝時可能產生的誤差示意圖。 圖3係本創作第一較佳實施例之直下型背光模組的剖面結 構示意圖。 圖4係本創作第二較佳實施例之背光模組的剖面結構示意 13 •M329179 图 θ 5B係I員示圖4實施例凸塊之扣合步驟。 圖6A係本創作第三較佳實施例 之背光模組示意圖。 圖6B係本創作第四較佳實施例之 背光模組示意圖。 圖7係本創作第五較佳實施例之背光模組的剖面結構示意 5 圖0 圖8係本創作第六較佳實施例之背光模組的剖面結構示意 圖。 圖9係本創作第七較佳實施例之背光模組的剖面結構示意 圖0 10【主要元件符號說明】 直下型背光模組1，2,3,4,5,6,7 光源13 擴散板 15,34,44,54,64,74 支撐裝置22 發光元件32 光學膜片35 支撐件67 下擴散片161 上擴散片163 固定部 342,442,542,642,7.42 反射片12 擴散板支撐結構14 光學膜片16 殼體 31，41，51，61，71 容置空間33 黏著物5 6 凸塊 151,341，441，541，641，741 集光片162 固定孔 313,413,613,713 開口 414,424 背板 11，21，311，411，511，611，711 背光上框 17,312,412,512,612,712 平板 343,443,543,643,743 14In addition, please refer to the schematic diagram of the backlight module of the preferred embodiment of _A, 6B. When the apparent w size of the second 当 second is increased, the bump 4 is divided by Γ, as shown in FIG. 6A, the bump (4) is flat, _ while the larger bump 441 is displayed in FIG. 6B. The profile surface ί back =? The number and area of the structure of the deformation force, and the unevenness of the display of the module 2 of the month 2 is reduced. Referring to Fig. 7, there is shown a cross-sectional structural view of the fifth preferred embodiment of the present invention. In order to succinctly show the structure of the present embodiment, only the both end edges and the central structure are exemplified in the drawing. In the embodiment, in order to omit the space, only the differences between the present embodiment and the previous embodiment will be described in detail. The cross-sectional shape of the bump 541 of the present embodiment may be one of the following: a circular shape, a square shape, a wedge shape or a polygonal shape, and the fixing portion 542 thereof is a flat plate member and is permeable to an adhesive member 56. Adhesively fixed to the back plate 511. + Again, please refer to FIG. 8 , which shows a cross-sectional structural diagram of the backlight unit of the sixth preferred embodiment of the present invention. To simplify the structure of the embodiment, only the structure of the edge is illustrated in the drawing. In contrast to the previous embodiment, the backlight module 6 of the present embodiment further includes a support member 67 that is disposed between the back plate 611 and the upper frame 612 for supporting the expansion plate 64. A bump 641 is formed at an edge on the surface of the flat plate 643. One end of the bump 641 is formed with a plurality of claw-shaped fastener-shaped fixing portions 642°, and a fixing hole is provided at the corresponding protrusion 641 on the support member 67. 613, for the fastening portion 642 to be fastened therein. 12 M329179土... 5" (4) 9 The sectional structure of the backlight module of the seventh preferred embodiment is shown in the figure, μ a., ^ is the structure of the present embodiment, which is shown in the figure. Only the structure of the edge is exemplified. In the gentleman, the bump % of the present embodiment is disposed at the edge of the other surface of the flat plate 743 opposite to the other surface. Therefore, the position of the fixing hole 713 is at the corresponding bump μ of the upper frame 712. Therefore, it can be known from the above that the creation system is formed by a bump and a back plate integrated with the diffusion plate, and supports the support. The piece or the upper frame is fastened to increase the number of the diffusion buds and the number of components, so that the optical quality of the light source can be improved to improve the display quality of the flat display of the application, and the thickness can be reduced. Assembly _ 1 Overall Tolerance - The above embodiments are merely examples for convenience of explanation, and the scope of the claims of the present invention 15 is subject to the scope of the patent application, and is not limited to the above embodiments. Brief description of the schema] Figure 1 is a straight-line back FIG. 2A is a schematic cross-sectional view of a conventional direct type backlight module. FIG. 2B is a schematic diagram of an error that may occur when the backlight module of FIG. 2A is assembled. FIG. 3 is a first preferred embodiment of the present invention. FIG. 4 is a cross-sectional structural diagram of a backlight module according to a second preferred embodiment of the present invention. 13 • M329179 FIG. 5B is an I member showing the buckle of the embodiment of FIG. 6A is a schematic diagram of a backlight module according to a third preferred embodiment of the present invention. FIG. 6B is a schematic diagram of a backlight module according to a fourth preferred embodiment of the present invention. FIG. 7 is a backlight module of the fifth preferred embodiment of the present invention. FIG. 9 is a cross-sectional structural view of a backlight module according to a sixth preferred embodiment of the present invention. FIG. 9 is a cross-sectional structural view of a backlight module according to a seventh preferred embodiment of the present invention. Main component symbol description] Direct type backlight module 1, 2, 3, 4, 5, 6, 7 Light source 13 Diffuser plate 15, 34, 44, 54, 64, 74 Support device 22 Light-emitting element 32 Optical film 35 Support 67 lower diffusion sheet 161 upper diffusion sheet 163 fixing portion 342, 442, 5 42,642,7.42 Reflector 12 Diffuser support structure 14 Optical diaphragm 16 Housing 31, 41, 51, 61, 71 accommodating space 33 Adhesive 5 6 Bumps 151, 341, 441, 541, 641, 741 Light collecting plate 162 Fixing Holes 313, 413, 613, 713 Openings 414, 424 Backing plates 11, 21, 311, 411, 511, 611, 711 Backing frame 17, 312, 412, 512, 612, 712 Plates 343, 443, 543, 643, 743 14