M379080 五、新型說明： 【新型所屬之技術領域】 本案係有關一種背框結構，尤指一種背光模組之背框結構， 該背框結構具有降低成本’以及簡化組裝步驟的優點。 【先前技術】 按液晶顯示器為目前電子或資訊產業中普遍採用之影像顯示 裝置’而液晶齡H不可或缺的重要構件為背親組，該模= 括導光板、光學膜片、液晶面板，以及通常為燈管之燈具或 以作為發光顯示。 ’、 如圖1所示，乃習知背光模組之立體分解圖，該背光模組100 包括一下鐵框1〇1，另將一膠框102組裝於該下鐵框之上， 接著將光學元件，例如反射片1()3、光源組1〇4、導光板1〇 數個光學膜>MG6、遮光膠帶1〇7及液晶面板1G8裝設於該膠框 102内固定，最後將一上鐵框1〇9與下鐵框1〇1相結 護前述之光學元件。 保 因此，就傳統結構之背光模組言，該下鐵框1〇1係提供背光 模組承載及結構強度的功能，而膠框1Q2則是用以置放及固定光 學疋件。因此’該下鐵框1〇1娜框1〇2為背光模組所不可或缺 之重要組件。 、 ^然就背光模組之整體結構觀之，光學元件可謂缺一不可，因 此若，降低成本’則必祕訂雜設収具備縣雜之置放 及固定光學元件之結構與魏。因此，如何將背紐組之下鐵框 及膠框以-體成型之背框結構來取代，乃相關業者亟待克服之難 題0 【新型内容】 本案主要目的在於提供一種背光模組之背框結構，其係利金 屬板材之沖型技躺—體成型，藉以取代下鐵框及膠框的組合， 3 M379080 而具有節省膠框模具費用，以及簡化組裝步驟的優點。 為，成前述之目的，本案所採取之_手段係提供一種背光 '，，且之背框結構，其伽X金屬板材以沖型技術U成型 矩形框體，該背框結構包括： … a if板’其四邊—翻上連接—繼，該四碰分別向外及 少—階級狀之凸緣部，其中一側壁最頂面之凸緣部縱 二凹槽’且該四側壁最頂面之各凸緣部則各自向外及 向下设有至少一段反折部。 HI ij—步揭7^案之具體技細容，首先請參關式，其中， Ξ之立齡賴’ ®2為本㈣框結構之立體M379080 V. New description: [New technical field] This case relates to a back frame structure, especially a back frame structure of a backlight module, which has the advantages of cost reduction and simplified assembly steps. [Prior Art] The liquid crystal display is an image display device commonly used in the current electronic or information industry, and an important component of the liquid crystal age H is an intimate group, which includes a light guide plate, an optical film, and a liquid crystal panel. And a luminaire, usually a light bulb, or as a light-emitting display. As shown in FIG. 1 , it is an exploded perspective view of a conventional backlight module. The backlight module 100 includes a lower iron frame 1〇1, and a plastic frame 102 is assembled on the lower iron frame, followed by optical The components, for example, the reflection sheet 1 () 3, the light source group 1〇4, the light guide plate 1 and the plurality of optical films> MG6, the light-shielding tape 1〇7, and the liquid crystal panel 1G8 are fixed in the plastic frame 102, and finally a The upper iron frame 1〇9 and the lower iron frame 1〇1 are bonded to the optical element described above. Therefore, in the conventional backlight module, the lower iron frame 1〇1 provides the function of backlight module bearing and structural strength, and the plastic frame 1Q2 is used for placing and fixing optical components. Therefore, the lower iron frame 1〇1娜1〇2 is an indispensable component of the backlight module. However, as far as the overall structure of the backlight module is concerned, optical components can be said to be indispensable. Therefore, if the cost is reduced, then the structure and the structure of the fixed optical components and the Wei are required. Therefore, how to replace the iron frame and the plastic frame under the back button group with the back frame structure is a difficult problem to be overcome by the relevant industry. [New content] The main purpose of this case is to provide a back frame structure of the backlight module. It is a embossing technology for sheet metal forming, which replaces the combination of the lower iron frame and the plastic frame, 3 M379080, which has the advantages of saving the cost of the plastic frame mold and simplifying the assembly steps. For the purpose of the foregoing, the method adopted in the present invention provides a backlight, and the back frame structure, the gamma metal plate is formed into a rectangular frame by a punching technique U, the back frame structure includes: ... a if The plate 'the four sides - the upper connection - the four sides are respectively outward and less - the flange portion of the class shape, wherein the flange portion of the top surface of one of the side walls is the second groove" and the top surface of the four side walls Each of the flange portions is provided with at least one inversion portion outward and downward. HI ij—Step-by-step 7^ The specific technical details of the case, first of all, please refer to the entry type, in which the Ξ之立龄赖’ ® 2 is the (four) frame structure of the three-dimensional
L Βϋ 構之頂視圖，圖4及圖5為圖3沿著線A-A 及線Β-Β所截取之剖面圖。 【實施方式】 =2至圖5所示，基本上，本案背框結構2〇〇為保有原有 ===:該背框結構2〇。係以金屬板材利用沖 加其田中，該背框結構2〇0為一矩形框體，其底面具有一底板 槿且内^承載f知的光學元件。而為使該背框結構2GQ得在沖壓 以:底板2〇1的適當位置，例如四角隅分別開 ί業ίΪί 壓模具内部之定位銷的插入，以利沖型 該底板201四邊-體向上連接一侧壁2〇3， 的置放’該四側壁2〇3分別向外及向上伸出至少級: 。請參閱圖4及圖5沿著圖3之線Α_Α及線Β_Β所 。|]面圖，由圖中可以清楚看出，由最上方凸緣部2G4至底Ζ⑺ 之間具有多層階級，例如三層階級狀之容置空間，以由 導光板、光學膜片及液晶面板等光學元件之 W。响再參閱圖2，射-侧壁203最頂面之凸緣部2〇4縱向 4 供絲讀讀^缺統組之軟 至少貝面之各凸緣部2〇4則各自向外及向下設有 膠框之ί度，= ^折部2Q6設置的目的在於取代原本 ,反折部2%外表面突設至少—扣點2〇7，以便 205、之二:2Ω7Τ_Γ上鐵框(f知未予以圖式)接合時，各反折部 牢固。可卡扣於上鐵框預設之扣孔，使兩者的結合更為 ㈣由本案之實施’其所增益的功效在於，本案之背框 二板:經由沖型技術而一體成型’除保有原本的承載 “〜四侧壁上方所形成之複數個階級狀凸緣部則可 二t 2定位’以取代原有的膠框設計。此舉，本案 奶扩可即省雜喃具費用外，同時可簡化，尤Α是下 =及膠框的组卿之工序，堪稱同類物品前所未見= 你品ί案所揭示者’乃較佳實施例之—種’舉凡局部之變更或修 俱不案之技術思想而為熟習該項技藝之人所易於推知者， 俱不脫本案之專利權範疇。 【圖式簡單說明】 圖1為習知背光馳之立體分解圖。 圖2為本案背框結構之立體圖。 圖3為本案背框結構之頂視圖。 ，4及圖5為圖3沿著線A_a及線B_B所截取之剖面 【主要元件符號說明】 « M^^200 底板201 疋位孔202 侧壁203 凸緣部204 凹槽205 M379080 反折部206 背光模組100 膠框102 光源組104 光學膜片106 液晶面板108 扣點207 下鐵框101 反射片103 導光板105 遮光膠帶107 上鐵框109The top view of the L Βϋ structure, Figs. 4 and 5 are cross-sectional views of Fig. 3 taken along line A-A and line Β-Β. [Embodiment] From 2 to 5, basically, the back frame structure 2 of the present case retains the original ===: the back frame structure 2〇. The back frame structure 2〇0 is a rectangular frame body having a bottom plate and an inner optical element. In order to make the back frame structure 2GQ be pressed in the appropriate position of the bottom plate 2〇1, for example, the four corners respectively open the insertion pins of the pressing mold, so as to facilitate the connection of the bottom plate 201 to the body-side. A side wall 2〇3, the placement of the four side walls 2〇3 respectively protrudes outward and upward at least in stages: Please refer to Figure 4 and Figure 5 along the line 图_Α and Β_Β of Figure 3. The top view, as can be clearly seen from the figure, has a multi-layered class between the uppermost flange portion 2G4 and the bottom cymbal (7), for example, a three-layered accommodating space for the light guide plate, the optical film, and the liquid crystal panel. W such as optical components. Referring again to Fig. 2, the flange portion 2〇4 of the topmost surface of the shot-side wall 203 is longitudinally 4, and the flange portions 2〇4 of the at least the soft surface of the strip are read outwardly and outwardly. There is a plastic frame below, = ^ Folding part 2Q6 is set to replace the original, 2% of the outer surface of the folding part protrudes at least - the buckle point 2〇7, so that 205, two: 2Ω7Τ_Γ on the iron frame (f When the joint is not shown, the folding portions are firm. It can be buckled on the preset buttonhole of the upper iron frame, so that the combination of the two is more (4) The implementation of the case's gain is that the back frame of the case is: integrally formed by punching technology. The original bearing "~ a plurality of class-shaped flange portions formed above the four side walls can be positioned two t 2" to replace the original plastic frame design. In this case, the milk expansion of the case can be used to save money. At the same time, it can be simplified, especially the process of the lower = and the frame of the plastic frame, which can be said that the similar items have never been seen before. The one disclosed in the case of your product is a change or repair of the local embodiment. The technical idea of the case is not easy for anyone who is familiar with the skill, and does not deviate from the patent right of the case. [Simplified illustration] Figure 1 is a three-dimensional exploded view of the conventional backlight. Fig. 3 is a top view of the back frame structure of the present case. Fig. 4 and Fig. 5 are sections taken along line A_a and line B_B of Fig. 3 [Major component symbol description] « M^^200 Base plate 201 疋Position hole 202 side wall 203 flange portion 204 groove 205 M379080 reverse folding portion 206 backlight module 10 0 Plastic frame 102 Light source group 104 Optical film 106 Liquid crystal panel 108 Buckle point 207 Lower iron frame 101 Reflecting sheet 103 Light guide plate 105 Light-shielding tape 107 Upper iron frame 109