200938903 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種應用於背光模組的背板，特別是 指一種具有支撐架的背板。 【先前技術】 液晶顯示器具有功耗低、重量輕以及厚度薄等優點， 故已廣泛應用於各項電子產品。然而液晶本身並不發光， 液晶顯示器需透過外來光源來顯示晝面，故背光模組是液 晶顯示器不可或缺的部分。 背光模組係將燈源、反射片、光學膜片等元件，配置 於一個金屬外殼中，藉由整體金屬外殼的強度，以保護與 支推背光模組的内部元件。 現行的金屬背板僅有少數的功能性開孔，其餘部份均 由金屬材料製成’金屬背板的重量最終將會增加液晶顯示 器的整體重量。除了重量問題，現行的金屬背板亦有成本 較间與製造過程較不易等缺點。另外，金屬背板應用於背 光模組時，易造成燈管感應漏電流，降低整體發光效率。 若金屬背板移除一部份的面積甚至大部分的底面積， 並直接以此金屬背板來組裝背光模組，則會造成背光模組 的強度不足，而使背光模組易受外力撓曲變形，或因本身 中二的框架無法承受背光模組内元件的重量而易使得組裝 結構不穩固。 5 200938903 【發明内容】 有鑑於此，本發明係提出-種適用於背光模組之背板 架構，主要係利用支撐架固接於金屬背框的邊框上，以支 撑架增強背板的剛性’其具有減輕重量、降低成本及大幅 減少燈管之漏電流等優點，製作上也較為容易。 本發明之背光模組之背板架構’至少包含一金屬背框 及第-支樓架。而第-支樓架係為具有封閉之一橫切面的 ❹肖構。第-支撐架具有至少兩端部，此兩端部係分別疊設 且固接於金屬背框上方。其中，金屬背框的設計，除了可 減輕顯示器整體的重量外’更因為中空的設計而可避免因 背板的金屬材質所產生的感應漏電流，因此可提高背光模 組的發光效率。又透過支撲架固接於金屬背框上，可以增 加金屬背框之剛性。 為讓本發明之上述内容能更明顯易M，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】 本發明係為一種背光模組之背板架構，主要係利用支 揮架固接於背光模組之背板架構的金屬背框上，增強背板 的剛性與降低背板重量。以下係為本發明之較佳實施例， 用以說明本發明之内容及原理。 第1圖為本發明背板之立體示意圖與局部放大圖。如 第1圖所示，本發明應用於背光模組的背板1〇包含金屬背 框100及至少一個支撐架200。在較佳實施例中，本發明之 200938903 背板10適用於直下式背光模組，但不以此為限，亦可依需 求應用於側入式背光模組。金屬背框1G0可為-矩形框架， 具有平行的兩個長邊框110及兩個短邊框120,此處僅是舉 例亦可依實際需求調整，例如金屬背框1〇〇的四個邊框 長度皆相等。相較於習知的背板，本發明的背板ι〇移除原 • 2金屬背板的大部分面積’用以降低整個f光模組之重 里又以支撑架200來補強結構之強度與穩定，兼顧成本 與效能的考量。 〇 支撐架200係為具有封閉之一橫切面的結構。支撐架 2〇〇具有至少兩端部2〇〇a與2〇〇b，其係分別疊設且固接於 金屬背框100的邊框上方。如第Μ中區域A的放大圖所 不支撐架200之一端部200a係可藉由鎖固螺孔21〇而叠 :史且固接於金屬背框i⑻的長邊框㈣上，用來增加金屬 背框100的剛性。支撐架2〇〇係位於金屬背框1〇〇之上方， 詳細來說’支揮架200整體皆位於金屬背框1〇〇之上方， ❹ #支擇架細與金屬背框1⑽位於不同平面，並以支樓架 加〇之兩端部200a與200b固接於金屬背框1〇〇上。另外， 金屬背框UK)與支撐架的固接方式除了如本實施例透 k鎖固螺孔210以螺絲接合的方式之外，更可透過銲接、 ^接接&、一體成型等方式完成接合，本發明不以上述接 合方式為限，熟習相關技藝者當能思揣不同的接合方式。 本發明之支撐架材質可為鍍辞鋼材與鋁材’亦可依實際需 求調整使用材質，本發明不以在此例舉者為限。 200938903 為了支撐力的考量，支撐架200之橫切面高度至少為 金屬月框100板金厚度的15倍以上，亦可依實際需求調整 支撐架橫切面之高度。支撐架200之截面可為一中空或實 心結構’在較佳實施例中，支撐帛200 #_面係為一空心結 構，如此可節省材料的使用、減少重量、降低成本。另外， 支撲架200具有封閉之橫切面，即橫切面之邊緣無開口或 不中斷，以保持其剛性，避免存在脆弱點》支撐架200上 可设有至少一個備用螺孔220(如第1圖中區域入之放大圖 所不）’以供後續組裝其他元件時使用或固定之用，螺孔位 置僅是舉例’但本發明不限於此，亦可依實際需求調整螺 孔位置與其尺寸。 第2A圖至第2D圖為本發明之支撐架結構示意圖。如 圖所不’本發明之支撐架200之橫切面形狀係為矩形、圓 形、三角形、十字形或梯形（圖未示）等幾何形狀，且此橫切 ❹ =可=開口或不令斷’即其係為封閉之橫切面。此橫 ”、實心或空心。矩形與梯形為較佳的實施例，而十 ='、了搭配卡合結構（圖未示）與液晶顯示器外殼 是舉例，亦可依實際需求調整纖橫切面 之形狀與實心或空心之結構。200938903 IX. Description of the Invention: [Technical Field] The present invention relates to a backboard applied to a backlight module, and more particularly to a backboard having a support frame. [Prior Art] Since the liquid crystal display has the advantages of low power consumption, light weight, and thin thickness, it has been widely used in various electronic products. However, the liquid crystal itself does not emit light, and the liquid crystal display needs to display the surface through an external light source, so the backlight module is an indispensable part of the liquid crystal display. The backlight module is configured to arrange components such as a light source, a reflection sheet, and an optical film in a metal casing to protect and support the internal components of the backlight module by the strength of the overall metal casing. The current metal backplane has only a few functional openings, and the rest is made of a metal material. The weight of the metal backsheet will eventually increase the overall weight of the liquid crystal display. In addition to weight issues, current metal backsheets also have disadvantages such as lower cost and less manufacturing process. In addition, when the metal back plate is applied to the backlight module, it is easy to cause the lamp to induce leakage current and reduce the overall luminous efficiency. If the metal backplane removes a part of the area or even the majority of the bottom area, and directly assembles the backlight module with the metal backplane, the backlight module is insufficient in strength, and the backlight module is vulnerable to external forces. The deformation of the curve, or the frame of the second body cannot withstand the weight of the components in the backlight module, and the assembly structure is not stable. 5 200938903 [Invention] In view of the above, the present invention proposes a backplane structure suitable for a backlight module, which is mainly fixed on a frame of a metal back frame by using a support frame to support the frame to enhance the rigidity of the back plate. It has the advantages of reducing weight, reducing cost, and greatly reducing leakage current of the lamp tube, and is also relatively easy to manufacture. The backplane structure of the backlight module of the present invention includes at least a metal back frame and a first-frame. The first truss is a sinuous structure with a closed cross section. The first support frame has at least two end portions which are respectively stacked and fixed to the upper of the metal back frame. Among them, the design of the metal back frame can not only reduce the overall weight of the display, but also avoid the induced leakage current caused by the metal material of the back plate due to the hollow design, thereby improving the luminous efficiency of the backlight module. The rigidity of the metal back frame can be increased by attaching the support frame to the metal back frame. In order to make the above-described contents of the present invention more apparent and easy to M, the preferred embodiments are hereinafter described in detail with reference to the accompanying drawings. [Embodiment] The present invention is a backplane structure of a backlight module, which is mainly fixed on a metal back frame of a backplane structure of a backlight module by using a support frame to enhance the rigidity of the backboard and reduce the weight of the backplane. The following is a preferred embodiment of the present invention to explain the contents and principles of the present invention. Figure 1 is a perspective view and a partial enlarged view of the back plate of the present invention. As shown in FIG. 1, the back panel 1 of the present invention applied to the backlight module includes a metal back frame 100 and at least one support frame 200. In the preferred embodiment, the 200938903 backplane 10 of the present invention is suitable for a direct type backlight module, but is not limited thereto, and may be applied to a side-entry backlight module as needed. The metal back frame 1G0 can be a rectangular frame, and has two long bezels 110 and two short bezels 120 in parallel. Here, only the examples can be adjusted according to actual needs, for example, the lengths of the four frames of the metal back frame 1〇〇 are all equal. Compared with the conventional backboard, the backplane of the present invention removes most of the area of the original 2 metal backplane to reduce the weight of the entire f-light module and to support the frame 200 to reinforce the strength of the structure. Stable, taking into account cost and efficiency considerations.支撑 The support frame 200 is a structure having a closed cross section. The support frame 2 has at least two end portions 2〇〇a and 2〇〇b which are respectively stacked and fixed to the frame of the metal back frame 100. For example, in the enlarged view of the area A in the second section, one end portion 200a of the support frame 200 can be stacked by the locking screw hole 21: it is attached to the long frame (4) of the metal back frame i (8) for adding metal. The rigidity of the back frame 100. The support frame 2 is located above the metal back frame 1 ,. In detail, the support frame 200 is located above the metal back frame 1 , and the 支 # support frame is thin and the metal back frame 1 (10) is located at different planes. And the two ends 200a and 200b of the support frame are fixed to the metal back frame 1〇〇. In addition, the fixing manner of the metal back frame UK) and the support frame can be completed by means of screwing, such as welding, joining, molding, and the like, in addition to the manner in which the k-locking screw hole 210 is screwed as in the embodiment. Engagement, the present invention is not limited to the above-described joining manner, and those skilled in the art can think of different joining methods. The material of the support frame of the present invention may be a plated steel material and an aluminum material. The material may also be adjusted according to actual needs, and the present invention is not limited thereto. 200938903 For the consideration of support force, the cross-section height of the support frame 200 is at least 15 times of the thickness of the metal frame 100, and the height of the cross-section of the support frame can also be adjusted according to actual needs. The cross-section of the support frame 200 can be a hollow or solid structure. In the preferred embodiment, the support 帛200#_face is a hollow structure, which saves material usage, reduces weight, and reduces cost. In addition, the bail 200 has a closed cross-section, that is, the edge of the cross-section has no opening or uninterrupted to maintain its rigidity, and avoids the presence of a weak point. The support frame 200 can be provided with at least one spare screw hole 220 (such as the first In the figure, the enlarged view of the area is not used for use or fixation for subsequent assembly of other components. The position of the screw hole is only an example. However, the present invention is not limited thereto, and the position of the screw hole and its size may be adjusted according to actual needs. 2A to 2D are schematic views showing the structure of the support frame of the present invention. As shown in the figure, the cross-sectional shape of the support frame 200 of the present invention is a geometric shape such as a rectangle, a circle, a triangle, a cross or a trapezoid (not shown), and the cross-cut ❹ = can be open or not interrupted. 'that is, it is a closed cross section. This horizontal, solid or hollow. Rectangular and trapezoidal are preferred embodiments, and ten = ', with the matching structure (not shown) and the LCD housing is an example, can also adjust the cross section of the fiber according to actual needs Shape and solid or hollow structure.
框二圖實=，圖係為本發明之支樓架固接於金屬背 ^式實施例示意圖。參照第3ΑΚ、第3D圖至第3J 桿型、反t 於金屬背框⑽上之結構型式包含長 字型等各式幾何樣:字:支 又得罙200之至少兩端部係分別 200938903 疊設且固接於金屬背框100上。另外，各個支撐架200之 至少兩端部係可分別固接於金屬背框1〇〇之兩個長邊框， 或=，支撑架2〇〇之至少兩端部可分別固接於金屬背框刚 之一長邊框與一短邊框，如此可有效提高結構之剛性。以 上僅是舉例，不同結構型式亦可混合搭配使用，亦 ❹ =需求調整支撐架之結構型式、數目、排列方式或固接位 。舉例而言，如第3A圖至第3C圖與第利，長桿型社 ，的支律架200固接於金屬背框刚上之排列方式，包含 ^桿、雙長桿平行、四角斜桿、斜隸型或其組合等排 ，式。以上僅是舉例，亦可依實際需求調整長桿型支揮 ^之排列方式或固接位置。另外，參見第3B圖，在金屬背 一王100上，兩支撐架200為長桿型結構且彼此平行，其中 支撐架200固接於金屬背框1〇〇的位置與金屬背框1〇〇 。線（如圖虛線所示）之距離係為G.刪倍至倍的金屬 =框刚的長度L，然而前述距離可依照實際需求予以調 ，據本發明具有支樓架之背板，由表一以有限元素法 =出來的等效K值之實驗數據可知，若移除金屬背板中 b的大部分面積而留下類似框架的結構，而以兩條中空且 :有封閉橫切面的支撲架來補強其結構剛性，可使代表社 構剛性的等效κ值提高為原來金屬#板的25倍。 200938903 法分析出來的蓉妫κ值 背板型ί ~— ^ ?4 ψι m ^ 厚度（mm) 朽哥双&值 質量（Kg) 等效Κ值 1 原來金屬背板 (未移除中間面積） 1.0 3.86 200.7 2 金屬背框無支撐架 1.0 1.27 31.8 3 金屬背框加兩支撐架 (鍍鋅鋼材） 1.0 1.66 511.3 4 金屬背框加兩支撐架 (鋁材） 1.2 0.80 465.0 藉此，利用本發明之具有支撐架之背板，不僅可以減 輕最終顯示器整體的重量，亦可避免背光模組因感應所產 生的漏電流，而提高背光模組的發光效率，特別是直下式 背光模組的效用更佳。另外，將支撐架固接於金屬背框上， 又可增加背板的剛性。Figure 2 is a schematic view of the embodiment of the invention in which the support frame is fixed to the metal back. Refer to the 3rd, 3Dth to 3rd, and the reverse type on the metal back frame (10). The structure type includes long-shaped and other geometric shapes: the word: the branch has at least two ends, respectively, 200938903 It is fixed and fixed on the metal back frame 100. In addition, at least two end portions of each support frame 200 can be respectively fixed to two long frames of the metal back frame 1 , or = at least two ends of the support frame 2 can be respectively fixed to the metal back frame Just one long frame and one short frame can effectively improve the rigidity of the structure. The above is only an example, different structural types can also be mixed and used together, and ❹ = need to adjust the structure type, number, arrangement or fixing position of the support frame. For example, as shown in Figures 3A to 3C and Dirich, the long frame type, the support frame 200 is fixed to the metal back frame just arranged, including the ^ rod, the double long rod parallel, the four angle oblique rod , oblique type or a combination thereof. The above is only an example, and the arrangement or fixing position of the long pole type can be adjusted according to actual needs. In addition, referring to FIG. 3B, on the metal back king 100, the two support frames 200 are of a long rod type structure and are parallel to each other, wherein the support frame 200 is fixed to the metal back frame 1〇〇 and the metal back frame 1〇〇. . The distance of the line (shown by the dotted line) is G. The metal is doubled to the length L of the frame. However, the aforementioned distance can be adjusted according to actual needs. According to the present invention, the back plate of the support frame is used. An experimental data of the equivalent K value obtained by the finite element method can be seen that if most of the area of b in the metal backing plate is removed leaving a frame-like structure, and two hollow and closed cross sections are obtained Strike to reinforce its structural rigidity, which can increase the equivalent κ value representing the rigidity of the community to 25 times that of the original metal # board. 200938903 The analysis of the Rongqi κ value back plate type ί ~— ^ ?4 ψι m ^ Thickness (mm) 哥哥双 & value quality (Kg) Equivalent 1 1 original metal back plate (without removal of the middle area 1.0 3.86 200.7 2 Metal back frame without support frame 1.0 1.27 31.8 3 Metal back frame plus two support frames (galvanized steel) 1.0 1.66 511.3 4 Metal back frame plus two support frames (aluminum) 1.2 0.80 465.0 The invention has a back plate with a support frame, which can not only reduce the overall weight of the final display, but also avoid the leakage current generated by the backlight module due to the induction, thereby improving the luminous efficiency of the backlight module, especially the utility of the direct-lit backlight module. Better. In addition, the support frame is fixed to the metal back frame, and the rigidity of the back plate can be increased.
雖然本發明已以實施例揭露如上，然其並非用以限定 本發明，任何具有本發明所屬技術領域之通常知識者，在 不脫離本發明之精神和範圍内，當可作各種更動與潤飾， 並可思揣其他不同的實施例’因此本發明之保護範圍♦視 後附申請專利範圍所界定者為準。 W 200938903 【圖式簡單說明】 第1圖係為本發明背板之立體示意圖與局部放大圖。 第2A圖至第2D圖係為本發明之支撐架結構示意圖。 第3A圖至第第3J圖係為本發明之支撐架固接於金屬 背框上之各式實施例示意圖。While the present invention has been described above by way of example, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. It is to be understood that the various embodiments of the invention are intended to be construed as the scope of the invention as defined by the appended claims. W 200938903 [Simplified description of the drawings] Fig. 1 is a perspective view and a partial enlarged view of the back plate of the present invention. 2A to 2D are schematic views showing the structure of the support frame of the present invention. 3A to 3J are schematic views of various embodiments of the support frame of the present invention fixed to a metal back frame.
【主要元件符號說明 1 〇 :背板 1〇〇 :金屬背框 110 .長邊框 12 0 .短邊框 200 I支撐架 200a、200b ··端部 210 :鎖固螺孔 220 =備用螺孔 11[Main component symbol description 1 〇 : Backplane 1〇〇: Metal back frame 110. Long frame 12 0. Short frame 200 I Support frame 200a, 200b · End part 210: Locking screw hole 220 = Spare screw hole 11