1300503 九、發明說明： 【發明所屬之技術領域】 本發明關於一背光模組，尤指一種具一體式金屬框架 且具有低成本、易組裝等功用之直下式背光模組之結構設 計。 【先前技術】 目前應用於如液晶顯示器中提供背光源的背光模組， 概可區分為側光式及直下式兩大類型，其中，直下式背光 模組主要係針對大尺寸的液晶顯示器所設計。 有關直下式背光模組之設計概如第四圖所示者，其組 成係包括一上框（20)、數片光學膜片（22)、數支 冷陰極燈管（2 3 )、一反射板（2 4 )以及一塑膠框架 (25)，该上框（20)為一方形環框，其頂面尚可裝 叹一方形的間隔環（2 1 )，該數片光學膜片（2 2 )係 依序設於該上框（2 0 )底部中，該塑膠框架（2 5 )包 括一框座（2 6 )、二燈管定位座（2 7 )以及二側邊條 (2 8 )，該二燈管定位座（2 7 )裝設於該框座乂 2 6 ) 兩相對應之侧邊處，並藉數螺絲（2 9 )予以鎖固，其中 忒一燈官疋位座（2 7 )上間隔設有數定位嵌槽（2 7 1 )， 提供該數支冷陰極燈管（2 3 )以其兩端之燈管連接件（2 3 1 〇 )組設定位其中，呈平行排列狀1二側邊條（2 8 )係裝於該框座（2 6 )中另兩相對應之側邊處，並藉 由數螺絲（2 9 )予以鎖固，該反射♦反（2 4 )係設於該 框座（2 6 )中相對於該數支冷陰極燈管（2 3 )下方， Ϊ300503 該反射板（2 4 )鄰近側邊條（2 8 )之二側邊處具有斜 向側翼部（2 4 1 )，抵靠於該二側邊條（2 8 )上，提 供光反射之功用，組設有數支冷陰極燈管（2 3 )及反射 板（24)之塑膠框架（25)再組設於上框（1 〇)底 4 ’為上框（1 〇 )罩盍於内’使該數支冷陰極燈管（2 3)位於該光學膜片（22)下方。 前述直下式背光模組可裝設於液晶顯示器之液晶面板 • 背面，藉由利用該數支冷陰極燈管通電發光，及其下方反 射板將光反射向上之輔助，接續透過該數片光學膜片使光 均勻分佈地投射在液晶面板上，提供該液晶面板顯示晝面 所需的背光源。 惟刚揭直下式背光模組雖可對液晶面板顯示晝面所需 的背光源，並用上框及塑膠框架固定該數片光學膜片及該 些冷陰極燈管，然而，該塑膠框架係由一框座、二燈管定 4座及一側邊條配合數螺絲組合而成，其中框座、燈管定 • 位座及側邊條各須獨立模具製造成形，有成本偏高之缺 點’、另，该二燈管定位座及二側邊條各須使用多顆螺絲加 乂鎖□疋位，有花費在鎖固元件之成本高及組裝費時費工 等問題，對此實有加以改善之必要。 【發明内容】 本^明之主要目的在於提供一種具一體式金屬框架之 直下式月光模組，希藉其採用一體成型之金屬框取 塑膠框架之έ且人埴κ斗 有 <、、且口構造没汁，用以解決先前技術成本偏高以 及組裝費時費工等問題。 1300503 為達成前揭目的，本發明所提出之技術方案主要係令 該具-體式金屬框架之直下式背光模組除包括一方形環： 上框，以及依序裝設至少-片光學膜片、數支冷陰極燈管 及一反射板外，尚於該反射板下方設置一由金屬板一體彎 折成形之金屬框架，該金屬框架包括一底板部以及位於側 邊呈折邊狀燈管定位部及側邊部，該燈管定位部上且間隔 設有數定位缺口，提供該數支冷陰極燈管端部之燈管連接 件置設定位其中。 本發明藉由前揭技術方案之設計，其特點在於：利用 其底部框架為金屬板一體彎折成形，並該框架周邊直接形 成折邊狀之燈管定位部及側邊部，提供該數支冷陰極燈管 及反射板組設定位之用，藉此，利用該金屬板彎折成形之 框架’使其具有低成本且易於組裝之功用。 【實施方式】 如第一圖所示，係揭示本發明具一體式金屬框架之直 .下式背光模組之一較佳實施例，由圖中可以見及該背光模 組主要包括一上框、至少一片光學膜片（1 1 ).、數支冷 陰極燈管（1 2 )、一反射板（1 3 )以及一金屬框架（1 4)，如第一至三圖所示，其中： 該上框（1 0 )係一方形環框體，其上可設一方形環 狀間隔環，所述的光學膜片（1 1 )係依序設於上框（1 0 )底部中，該數支冷陰極燈管（1 2 )係間隔平行排列 於所述的光學膜片（1 1 )下方’該數支冷陰極燈管兩端 各套接一燈管連接件（]_ 2 1 )，該反射板（1 3 )設於 6 .1300503 該數支冷陰極燈管（1 2 )下方，並使該數支冷陰極燈管 . (1 2 )兩端的燈管連接件（1 2 1 )伸出其外側端，且 該反射板（1 3 )相對於冷陰極燈管（1 2 )發光段之兩 側邊處具有呈預定傾斜角度之斜側板部（1 3 1 )。 % 該金屬框架（1 4 )係由一預定形狀之金屬板一體彎 折成形之架體，該金屬框架（1 4 )設於該反射板（1 3 ) 下方’並級設於上框底部，使所述之光學膜片 1 )、冷陰極燈座（1 2 )及反射板（1 3 )被罩蓋固定 •於該上框（1 〇 )與該金屬框架（丄4 )内部，其包括一 長方形底板部（1 4 1 )、位於二相對應側之燈管定位部 (1 4 2 )以及位於另二相對相應側之側邊部（1 4 3 )， ' 其中’該燈管定位部（1 4 2 )係彎折成端視呈三角形或 其匕幾何形狀之折邊，其上設有相對於該數支冷陰極燈管 (1 2 )數量之定位嵌槽（1 4 6 )，呈間隔排列狀，用 以提供该數支冷陰極燈管（1 2 )以其端部之燈管連接件 • ( 1 2 1 )置設定位其中，使該數支冷陰極燈管（丄2 ) 間保持預定的間距，該二側邊部（1 4 3 )亦為彎折成端 視王二角形或其它幾何形狀之折邊，用以於反射板（1 3 ) 兩側斜側板部（1 3 1 )下方支撐。前述中，該金屬框架 (1 4 )四周之燈管定位部（1 4 2 )及側邊部（1 4 3 ) 外側邊為垂向於底板部之垂直側板面（1 4 4 )( 1 4 5 )。 本發明藉由前揭具一體式金屬框架之直下式背光模組 汉计’ §其組設於液晶顯示器之液晶面板背面，另令藉由 該數支冷陰極燈管（1 2 )側端之燈管連接件（1 2 1 ) 7 1300503 外接顯示器之電源，如此，即可利用該數支冷陰極燈管（1 2 )通電發光，配合下方反射板（1 3 )將光反射向上之 輔助’再透過該數支冷陰極燈管（1 2 )上方之光學膜片 (1 1 )’使先均勻分佈地投射在液晶面板上，提供該液 晶面板顯示晝面所需的背光源。 由前揭說明中當可以瞭解，本發明之特色主要係藉該 直下式背光模組中之底部框架為利用金屬板一體彎折成形 之構件，使該框架周邊直接一體形成折邊狀之燈管定位部 及側邊部，用以提供數支冷陰極燈管及反射板組設定位之 用，藉此，讓該金屬框架之製造具有易成形製造及低成本 之功用，同時可免除先前技術須使用多數顆螺絲鎖固之繁 瑣組裝步驟，藉以提供一項極具產業利用價值之實用直; 式背光模組設計。 【圖式簡單說明】 第一圖係本發明具一體式金屬框架之直下式背光模組 之一較佳實施例立體分解示意圖。 第二圖係第一圖所示直下式背光模組較佳實施例中之 金屬框架立體示意圖。 第三圖係第-圖所示直下式背光模組較佳實施例部分 構件先行組合後之立體示意圖。 第四圖係目前已知具有塑膠框架之直下式背光模^ 立體分解示意圖。 【主要元件符號說明】 (1 0 1 )間隔環 (1 0 )上框 8 ,1300503 (1l)光學膜片 (121)燈管連接件 (131)斜側板部 (1 4 )金屬框架 (1 4 2 )燈管定位部 (1 4 4 )垂直側板面 (1 4 6 )定位嵌槽 (2 0 )上框 (2 2 )光學膜片 (2 3 1 )燈管連接件 (2 4 )反射板 (2 5 )框架 (2 7 )燈管定位座 (2 8 )侧邊條 (1 2 )冷陰極燈管 (1 3 )反射板 (141)底板部 (1 4 3 )側邊部 (1 4 5 )垂直側板面 (2 1 )間隔環 (2 3 )冷陰極燈管 (2 4 1 )側翼部 (2 6 )框座 (2 7 1 )定位嵌槽 (2 9 )螺絲1300503 IX. Description of the Invention: [Technical Field] The present invention relates to a backlight module, and more particularly to a structure design of a direct type backlight module having an integrated metal frame and having low cost and easy assembly. [Prior Art] At present, backlight modules for backlights such as liquid crystal displays can be divided into two types: side light type and direct type. Among them, direct type backlight modules are mainly designed for large size liquid crystal displays. . The design of the direct type backlight module is as shown in the fourth figure, and its composition includes an upper frame (20), a plurality of optical films (22), a plurality of cold cathode lamps (23), and a reflection. a plate (2 4 ) and a plastic frame (25), the upper frame (20) is a square ring frame, and the top surface of the plate can be sung with a square spacer ring (2 1 ), and the plurality of optical films (2) 2) is sequentially disposed in the bottom of the upper frame (20), the plastic frame (2 5 ) includes a frame seat (26), two lamp tube positioning seats (27), and two side edge bars (2 8 The two lamp positioning brackets (27) are mounted on the opposite sides of the frame 乂2 6 ) and are locked by a plurality of screws (2 9 ), wherein the lamp seat is seated. (2 7) a plurality of positioning slots (2 7 1 ) are provided at the upper interval, and the plurality of cold cathode lamps (2 3 ) are provided with the lamp tube connecting members (2 3 1 〇) set at both ends thereof The two side strips (2 8 ) arranged in parallel are attached to the opposite sides of the other two of the frame seats (26), and are locked by a plurality of screws (2 9 ), and the reflection is reversed ( 2 4) is set in the frame (2 6 ) relative to the number of cold and overcast Below the tube (2 3 ), Ϊ300503, the reflector (24) has oblique side wings (2 4 1 ) adjacent to the side edges of the side strips (28), against the two side strips (2) 8) On the function of providing light reflection, the plastic frame (25) with several cold cathode lamps (23) and reflectors (24) is set in the upper frame (1 〇) and the bottom 4' is the upper frame. (1 〇) inside the cover' so that the plurality of cold cathode lamps (23) are located below the optical film (22). The direct type backlight module can be installed on the back surface of the liquid crystal panel of the liquid crystal display, and the light is emitted by using the plurality of cold cathode lamps, and the reflector below the reflector reflects the light upward, and then passes through the plurality of optical films. The sheet projects light uniformly distributed on the liquid crystal panel to provide a backlight required for the liquid crystal panel to display the surface. However, the backlight module can be used to display the backlight required for the liquid crystal panel, and the optical film and the cold cathode lamp are fixed by the upper frame and the plastic frame. However, the plastic frame is One frame seat, two lamp tubes and four side plates are combined with a number of screws. The frame seat, the lamp tube fixed position and the side strips must be independently molded and formed, which has the disadvantage of high cost. In addition, the two lamp holders and the two side strips each need to use multiple screws and shackles, which have the problems of high cost of the locking components and time-consuming assembly and assembly. Necessary. SUMMARY OF THE INVENTION The main purpose of the present invention is to provide a direct-type moonlight module with an integrated metal frame, which is obtained by using an integrally formed metal frame to take a plastic frame and having a 埴 斗 bucket, <, and No juice is constructed to solve the problems of high cost of prior art and time-consuming labor for assembly. 1300503 In order to achieve the foregoing object, the technical solution proposed by the present invention is mainly to make the direct-type backlight module of the metal-framed metal frame include a square ring: an upper frame, and at least a piece of optical film, A plurality of cold cathode fluorescent tubes and a reflecting plate are disposed outside the reflecting plate, and a metal frame integrally formed by bending a metal plate is disposed. The metal frame includes a bottom plate portion and a lamp portion positioning portion at the side of the folded edge. And a side portion, the lamp positioning portion is provided with a plurality of positioning notches at intervals, and the lamp connecting rods for providing the ends of the plurality of cold cathode lamps are set therein. The invention is characterized in that the design of the prior art is characterized in that: the bottom frame is integrally bent and formed by a metal plate, and the periphery of the frame directly forms a folded-shaped lamp tube positioning portion and a side portion, and the plurality of branches are provided. The cold cathode lamp tube and the reflector plate set are used for setting positions, whereby the frame formed by bending the metal plate is made to have a low cost and an easy assembly function. [Embodiment] As shown in the first figure, a preferred embodiment of a direct-type backlight module having an integrated metal frame according to the present invention is disclosed. As can be seen from the figure, the backlight module mainly includes an upper frame. At least one optical film (1 1 ), a plurality of cold cathode fluorescent tubes (12), a reflecting plate (13), and a metal frame (14), as shown in the first to third figures, wherein: The upper frame (10) is a square ring frame, and a square annular spacer ring is disposed thereon. The optical film (1 1 ) is sequentially disposed in the bottom of the upper frame (10). a plurality of cold cathode fluorescent tubes (12) are arranged in parallel below the optical film (1 1 ). Each of the plurality of cold cathode lamps is sleeved with a lamp connecting piece (]_ 2 1 ) The reflector (13) is disposed under the 6.1300503 cold cathode lamp (1 2 ) and the plurality of cold cathode lamps. (1 2 ) the lamp connector at both ends (1 2 1 ) extending from the outer end thereof, and the reflecting plate (13) has a slanting side plate portion (1 3 1 ) at a predetermined inclination angle with respect to both side edges of the illuminating section of the cold cathode lamp tube (12). % The metal frame (14) is a frame body integrally formed by bending a metal plate of a predetermined shape, and the metal frame (14) is disposed under the reflection plate (13) and is disposed at the bottom of the upper frame. The optical film 1), the cold cathode lamp holder (12), and the reflector (13) are fixed by a cover, and the inside of the upper frame (1) and the metal frame (丄4) includes a a rectangular bottom plate portion (1 4 1 ), a lamp tube positioning portion (1 4 2 ) on the opposite side, and a side edge portion (1 4 3 ) on the other opposite side, 'where' the lamp tube positioning portion ( 1 4 2 ) is a folded edge which is bent into a triangle or a geometric shape of the cymbal, and is provided with a positioning recess (1 4 6 ) relative to the number of the cold cathode fluorescent tubes (1 2 ). Arranged at intervals to provide the plurality of cold cathode fluorescent tubes (1 2 ) with their ends connected to the lamp tube (1 2 1 ), such that the plurality of cold cathode lamps (丄2) The predetermined distance is maintained, and the two side portions (1 4 3 ) are also folded into a double-sided or other geometric shape for the side plate of the reflector (1 3 ) Supporting 131) below. In the foregoing, the outer side of the lamp positioning portion (1 4 2 ) and the side portion (1 4 3 ) around the metal frame (14) is a vertical side plate surface (1 4 4 ) perpendicular to the bottom plate portion (1) 4 5 ). The invention adopts a direct-type backlight module of the front-mounted metal frame, which is set on the back of the liquid crystal panel of the liquid crystal display, and is further provided by the side ends of the plurality of cold cathode lamps (1 2 ). The lamp connector (1 2 1 ) 7 1300503 is connected to the power supply of the display. Thus, the plurality of cold cathode lamps (1 2 ) can be used to illuminate the light, and the lower reflector (1 3 ) is used to reflect the light upwards. The optical film (1 1 ) above the plurality of cold cathode fluorescent tubes (1 2 ) is first uniformly distributed on the liquid crystal panel to provide a backlight required for the liquid crystal panel to display the surface. It can be understood from the foregoing description that the feature of the present invention is mainly that the bottom frame in the direct type backlight module is a member which is integrally bent and formed by using a metal plate, so that the periphery of the frame is integrally formed into a folded-shaped lamp tube. The positioning portion and the side portion are used for providing a plurality of cold cathode fluorescent lamps and reflector plate set positions, thereby making the metal frame manufacturing easy to manufacture and low-cost, and eliminating the need for prior art The cumbersome assembly steps of locking with a large number of screws provide a practical and straightforward design of the backlight module. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a perspective exploded view of a preferred embodiment of a direct type backlight module having an integrated metal frame of the present invention. The second figure is a perspective view of the metal frame in the preferred embodiment of the direct type backlight module shown in the first figure. The third figure is a perspective view of the components of the preferred embodiment of the direct-lit backlight module shown in the first embodiment. The fourth figure is a three-dimensional exploded view of a direct type backlight module with a plastic frame. [Main component symbol description] (1 0 1) spacer ring (1 0) upper frame 8, 1300503 (1l) optical film (121) lamp connector (131) oblique side plate portion (1 4 ) metal frame (1 4 2) Lamp positioning part (1 4 4 ) Vertical side plate surface (1 4 6 ) Positioning bracket (2 0 ) Upper frame (2 2 ) Optical diaphragm (2 3 1 ) Lamp connector (2 4 ) Reflector (2 5 ) frame (2 7 ) lamp tube positioning seat (2 8 ) side strip (1 2 ) cold cathode lamp tube (1 3 ) reflector plate (141) bottom plate portion (1 4 3 ) side portion (1 4 5) Vertical side plate surface (2 1 ) Spacer ring (2 3 ) Cold cathode lamp tube (2 4 1 ) Side wing portion (2 6 ) Frame seat (2 7 1 ) Positioning groove (2 9 ) Screw