1275881 九、發明說明： 【發明所屬之技術領域】 本發明係一種背光模組，尤其是一種具有保護共地基 板之凸起結構，以避免共地基板組裝時受到碰撞而損壞之 背光模組。 【先前技術】 現今薄膜電晶體液晶顯示器（TFT-LCD )設計首重輕薄 短小專概念，為達到液晶顯示器輕薄短小的設計理念，進 而設計者競相流行將液晶模組之背板修改為狹額緣設計， 因此，為有效利用背板侧邊空間而不將共地基板設計在側 面，便將共地基板設置於背板背面，而較不傾向將其設置 在鋁背板的側面，請參閱第丨圖，係習知共地基板設置於 背板背面示意圖，主要是為有效節省背光模組1〇〇側邊的 空間。 如上所述，習知直下式薄膜電晶體液晶顯示器之共地 基板120，係將共地基板12〇直接鎖附固定於背板n〇 上，但是在組裝成模組的過程中，工作人員為保護面板不 被刮傷或撞擊，往往較為注重避免面板面損傷，卻反而忽 略为板110背面之共地基板120 ，因此時常於組裝或搬運 過程中，使得共地基板120受到碰撞，導致共地基板12〇 發生問題，當共地基板120破裂進而造成共地基板12()的 不良。 因此，如何重新設計一種背光模組之共地基板保護結 構，以防護共地基板免於受到碰撞而損傷，即為業者研發 1275881 之標的。 【發明内容】 鑑於以上習知技術的問題，本發明之主要目的在於提 ' 供一種背光模組，其具有保護共地基板之凸起結構，用以 • 解決習知背光模組係需加裝保護裝置防護共地基板，導致 -組裝效率降低之缺失，以及改善加裝保護裝置防護共地基 ' 板導致成本提高之缺點。 土 # 本發明係一種背光模組，其具有保護共地基板之凸起 結構，係包含—背板、—凸起結構及—共地基板，係先提 仏月板，並於背板之表面沖壓一 L狀之凸起結構作為保 護結構，此凸起結構係-體成形於背板，此凸起下方 係具有-容置空間，此容置空間係用以設置丄Π 凸起結構之底部處，係為不完全破開孔洞，此不完全破開 之孔洞係包含有未沖壓破斷之至少一固定肋，當共地基板 鎖附及固定於固定肋時，係能受到凸起結構之防護。 • 纟上述之圖解及詳細說明，可知本發明乃綜合多年設 計經驗，所發明之一種背光模組，本發明相較於習知做 法’已具備下列數點優於f知作法，並具備顯著功效增 .槿種背光模組’其具有保護共地基板之凸起結 ::由於此凸起結構係一體成形於背板表面，因此 糸較習知更能節省須另行加裝保護蓋 共地基板之成本。 2.本發明―種背絲組，其具有保護共地基板之凸起結 1275881 構，係由於共地基板設置於凸起結構下，因此本發明 之共地基板係較習知設置於背板之共地基板更能有效 降低撞機率。 -3.本發明一種背光模組，其具有保護共地基板之凸起結 ' 構，係由於共地基板設置於背板之表面之凸起結構下， . 因此係更能有效運用背板之側邊空間作其他設計之用， • 或節省背光模組之側邊空間。 鲁為達上述之目的，有關本發明較詳細之内容及具體可 行之實施方式，將參照圖式說明如下： 【實施方式】 以下為本發明較佳實施例之組裝方式及實施步驟，茲 配合圖式做詳細說明。 本發明係一種背光模組，其具有保護共地基板之凸起 結構’係將凸起結構設置於背光模組之背板之表面上，藉 此當共地基板設置於背板之凸起結構下方時，係能受到凸 • 起結構防護，免於共地基板組裝時受到碰撞而損壞。 本發明係一種背光模組，其具有保護共地基板之凸起 結構’係將此背光模組之凸起結構之較佳實施例，所揭示 之實施特點之實施方式作說明。 首先，請參閱第2圖係本發明凸起結構成形於背板示 意圖，及第4圖係本發明背光模組之凸起結構示意圖，本 發明係一種背光模組1 ’其具有保護共地基板之凸起結 ~ 構，係包含一背板10、一凸起結構20及一共地基板3〇。 075881 本务明係一種背光模組1 ，其係為直下式背光模組， 一有保濩共地基板30之凸起結構2〇，係先提供一背板 =用冲壓模具對此背板1〇之一表面進行沖壓製程，並 使此背板ίο之表面產生塑性變形，藉以於背板1〇之表面成 -形有一凸起結構20，此凸起結構20係為凸起之護板，此凸 ••起結構2〇係呈現L狀，#然此凸起結制係—體成形於背 ㈣之-表面上，請參閱第3圖，係本發明凸起結構成形 φ 於背板局部放大圖，此凸起結構20下方係具有一容置空 間，此凸起結構20之容置空間係用以設置一共地基板3〇， 但是當對背板10進行沖壓製程，使其成形一凸起結構2〇 時，係需使得背板10沖壓成形一凸起結構2〇處，為一不完 全破開之孔洞21，此不完全破開之孔洞21係保留有未沖= 破斷之至少一固定肋22，此至少一固定肋22係用以設置共 地基板30時，為鎖附及固定共地基板3〇之用。 再者，請再參閱第4圖係本發明背光模組之凸起結構 • 不思圖，及第5圖係本發明背光模組之凸起結構局部放大 圖，當本發明一種背光模組1係包含有保護共地基板3〇之 之凸起結構20時，係先將共地基板3〇設置於背板1〇之凸起 結構20下方之容置空間，即是將共地基板3〇鎖附及固定於 凸起結構20下方之至少一固定肋22，進而完成共地基板3〇 設置於背板10上，此時，當工作人員在組裝成背光模組i 、 的過程中，共地基板30係能受到凸起結構2〇之防護，且不 會因工作人員於組裝或搬運過程中，忽略背板忉之表面係 設置有共地基板30而產生碰撞，導致共地基板3〇發生問 1275881 題’或使得共地基板30破裂導致共地基板3〇的不良。 本發明係一種背光模組1，其具有保護共地基板3〇之 凸起結構20，為防護背光模組丨之背板1〇因開設有凸起結 構20 ’而使得凸起結構20之底面有不完全破開之孔洞21， 係會導致灰塵或污染物由孔洞落入背板中，因此係於背板 10之另一表面貼附有薄膜40，即是凸起結構2〇之孔洞21背 ，面處，貼附有一層薄膜40，且考量背光模組散熱之問題， 魯此貼附於凸起結構20之孔洞21處之薄膜係為透氣薄膜。 雖然本發明以較佳實施例揭露於上，然其並非用以 限疋本發明，任何熟習此項技藝者，在不脫離本發明之 精神和範圍内，當可做些許之更動與潤飾，因此本發明 之保護範圍當視後附之申請範圍所界定者為準。 【圖式簡單說明】 第1圖係習知共地基板設置於背板背面示意圖。 _第2圖係本發明共地基板之凸起結構成形於背板示意圖。 第3圖係本發明共地基板之凸起結構成形於背板局部放大 圖〇 ^圖係本如明月光模組之共地基板之凸起結構示奇圖。 弟5圖係本發明背光模組之共地基板之凸起結構局部放大 、 圖。 ^ 【主要元件符號說明】 10(3背光模組 1275881 110背板 120共地基板 1 背光模組 10背板 20 凸起結構 21 孔洞 22固定肋 30共地基板 40薄膜1275881 IX. Description of the Invention: [Technical Field] The present invention relates to a backlight module, and more particularly to a backlight module having a convex structure for protecting a common ground plate to avoid damage caused by collision when the common substrate is assembled. [Prior Art] Today's thin film transistor liquid crystal display (TFT-LCD) design is the first light, thin and short concept. In order to achieve the design concept of light and thin liquid crystal display, designers are competing to change the back panel of the LCD module to a narrow margin. Therefore, in order to effectively utilize the side space of the backboard without designing the common substrate on the side, the common substrate is disposed on the back surface of the back panel, and it is less inclined to be disposed on the side of the aluminum back panel, please refer to The schematic diagram is a schematic diagram of the conventional substrate disposed on the back of the backplane, mainly for effectively saving the space of the side of the backlight module. As described above, the common substrate 120 of the conventional direct-type thin film transistor liquid crystal display directly locks the common substrate 12 固定 on the back plate n〇, but in the process of assembling into a module, the staff is The protective panel is not scratched or impacted, and tends to avoid damage to the panel surface, but instead ignores the common substrate 120 on the back of the board 110. Therefore, the common substrate 120 is often collided during assembly or handling, resulting in a common ground. A problem occurs in the substrate 12A, and the common substrate 120 is broken to cause a defect in the common substrate 12(). Therefore, how to redesign a common substrate protection structure of a backlight module to protect the common substrate from being damaged by collision is to develop the standard of 1275881. SUMMARY OF THE INVENTION In view of the above problems in the prior art, the main object of the present invention is to provide a backlight module having a convex structure for protecting a common substrate for solving the conventional backlight module. The protection device protects the common substrate, resulting in a lack of reduction in assembly efficiency and an improvement in the cost of adding a protective device to protect the common foundation's board. The invention is a backlight module, which has a convex structure for protecting a common substrate, and comprises a back plate, a convex structure and a common ground plate, which are first raised on the surface of the back plate and on the surface of the back plate. Pressing an L-shaped raised structure as a protective structure, the raised structure is formed on the back plate, and the underside of the protrusion has an accommodating space for arranging the bottom of the 凸起 convex structure Where the hole is not completely broken, the hole that is not completely broken includes at least one fixing rib that is not punched and broken. When the common substrate is locked and fixed to the fixing rib, the hole can be subjected to the convex structure. Protection. • In the above-mentioned illustrations and detailed descriptions, it can be seen that the present invention is a backlight module which has been invented for many years of design experience. Compared with the prior art, the present invention has the following advantages over the known method and has significant effects.增增槿 backlight module' has a raised junction for protecting a common substrate: since the raised structure is integrally formed on the surface of the backing plate, it is more convenient to save the additional protective cover The cost. 2. The present invention, a type of backing wire group, has a raised structure 1275891 structure for protecting a common substrate, because the common ground substrate is disposed under the convex structure, the common ground substrate of the present invention is conventionally disposed on the back plate. The common ground substrate is more effective in reducing the collision rate. - 3. A backlight module of the present invention, which has a convex structure for protecting a common substrate, because the common substrate is disposed under the convex structure of the surface of the back plate, so that the back plate can be effectively used. The side space is used for other designs, or to save the side space of the backlight module. For the purpose of the above, the detailed description of the present invention and the specific embodiments of the present invention will be described below with reference to the drawings: [Embodiment] The following is an assembly method and implementation steps of a preferred embodiment of the present invention. Detailed description. The present invention is a backlight module having a convex structure for protecting a common substrate. The protruding structure is disposed on a surface of a back plate of the backlight module, whereby the common substrate is disposed on the convex structure of the back plate. When it is below, it can be protected by the convex structure and is protected from collision and damage when the common substrate is assembled. The present invention is directed to a backlight module having a raised structure for protecting a common substrate, which is a preferred embodiment of the raised structure of the backlight module, and an embodiment of the disclosed embodiments. First, please refer to FIG. 2, which is a schematic diagram of a convex structure formed on a backplane of the present invention, and FIG. 4 is a schematic diagram of a convex structure of a backlight module of the present invention. The present invention is a backlight module 1' having a protective common ground substrate. The raised structure comprises a backing plate 10, a raised structure 20 and a common substrate 3〇. 075881 This is a backlight module 1 which is a direct-lit backlight module. One has a raised structure 2濩 of the common substrate 30, which is provided first with a backing plate = with a stamping die for the backing plate 1 One surface of the crucible is subjected to a stamping process, and the surface of the back plate is plastically deformed, whereby a surface of the back plate 1 is formed into a convex structure 20, and the convex structure 20 is a convex protective plate. The convex structure of the convex structure is L-shaped, and the convex system is formed on the surface of the back (four). Referring to FIG. 3, the convex structure of the present invention is formed on the back plate. The enlarged structure of the raised structure 20 has an accommodating space. The accommodating space of the raised structure 20 is used to set a common substrate 3 〇, but when the backing plate 10 is stamped, a convex shape is formed. When the structure is 2〇, the back plate 10 needs to be stamped and formed into a convex structure 2〇, which is a hole 21 which is not completely broken, and the hole 21 which is not completely broken remains at least unbroken=broken. a fixing rib 22, wherein the at least one fixing rib 22 is used for locking and fixing the common ground plate 30 The substrate 3 is used for 〇. Furthermore, please refer to FIG. 4 for the convex structure of the backlight module of the present invention. FIG. 5 is a partial enlarged view of the convex structure of the backlight module of the present invention, and is a backlight module 1 of the present invention. When the convex structure 20 for protecting the common substrate 3 is included, the common ground substrate 3 is first disposed in the accommodating space below the convex structure 20 of the back plate 1 , that is, the common substrate 3 〇 The at least one fixing rib 22 is fixed and fixed on the bottom of the protruding structure 20, and then the common substrate 3 is disposed on the backing plate 10. At this time, when the staff assembles into the backlight module i, The ground substrate 30 can be protected by the convex structure 2, and the collision is not caused by the staff in the process of assembly or transportation, and the surface of the back plate is disposed with the common substrate 30, resulting in the common substrate 3〇. The problem of the 1275881 problem occurs or the common substrate 30 is broken to cause a failure of the common substrate 3〇. The present invention is a backlight module 1 having a convex structure 20 for protecting a common substrate 3A. The back surface of the backlight module is protected by a convex structure 20'. The hole 21 which is not completely broken may cause dust or contaminants to fall into the backing plate from the hole, so that the film 40 is attached to the other surface of the back plate 10, that is, the hole 21 of the convex structure 2 At the back and the surface, a film 40 is attached, and considering the problem of heat dissipation of the backlight module, the film attached to the hole 21 of the protruding structure 20 is a gas permeable film. Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the invention, and it is possible to make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a conventional substrate disposed on the back surface of a back sheet. _ Fig. 2 is a schematic view showing the convex structure of the common substrate of the present invention formed on the back plate. Fig. 3 is a partial enlarged view of the convex structure of the common substrate of the present invention formed on the back plate. Fig. 4 is a schematic diagram showing the convex structure of the common substrate of the moonlight module. Figure 5 is a partial enlarged view of the convex structure of the common ground substrate of the backlight module of the present invention. ^ [Main component symbol description] 10 (3 backlight module 1275881 110 back panel 120 common ground substrate 1 backlight module 10 back panel 20 raised structure 21 hole 22 fixed rib 30 common ground substrate 40 film