Ι2479^,〇〇 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種背板，且特別是有關於一種應用 於背光模組以及液晶顯示器模組之背板。 【先前技術】 隨著現代視訊技術的進步，視訊裝置逐漸朝著重量 輕、尺寸大以及面板薄等趨勢發展。配合光電與半導體製 造技術所發展之平面顯示器（Flat Panel Display)，例如液 晶顯示器(LCD)、有機發光顯示器(〇leD)或是電漿顯示器 (PDP)，已逐漸成為顯示器產品之主流。近年來，大部分 的行動電話、數位相機、數位攝影機、筆記型電腦以及桌 上型電腦上之顯示螢幕皆以液晶顯示面板（LCD Pane〇' 為主流，但由於液晶顯示面板本身並不具有發光的功能， 故在液晶顯示面板下方通常必須配置一背光模組（Ι 2479^, 〇〇 九, invention description: [Technical Field] The present invention relates to a backplane, and more particularly to a backplane for a backlight module and a liquid crystal display module. [Prior Art] With the advancement of modern video technology, video devices are gradually moving toward light weight, large size, and thin panels. Flat panel displays, such as liquid crystal displays (LCDs), organic light-emitting displays (〇leD) or plasma display (PDP), which have been developed with optoelectronic and semiconductor manufacturing technologies, have gradually become the mainstream of display products. In recent years, most mobile phones, digital cameras, digital cameras, notebook computers, and display screens on desktop computers use liquid crystal display panels (LCD Pane〇' as the mainstream, but because the liquid crystal display panels themselves do not have illumination. The function, so a backlight module must usually be configured under the liquid crystal display panel (
Light Module)以提供液晶面板所需之面光源，並同時獲 得足夠之亮度與對比，進而使得液晶面板達到顯示的^ 能。 圖1A繪示為習知一種背光模組的立體圖，而圖 繪示為圖1Α之背板側緣與導光板定位凸耳附近的局部俯 視圖。如圖1Α與1Β所示，背光模組1〇〇包括背板11〇 / 導光板120、固定框130以及光學膜片14〇,其中導光板 120之外緣係延伸凸出一定位凸耳12如，而光學膜片 之外緣係延伸凸出一定位凸耳140a。此外，背板11〇 有底部114以及垂直連接於底部114外圍之側緣112，^ 構成可供導光板120以及光學膜片140放置之空間，其中 I2479^6twfd〇c 侧緣112上具有開口 112a，可使得導光板12()以及光學 膜片140與背板110組立之後，導光板12〇之定位凸耳 以及光學膜片140之定位凸耳14〇a可卡置於開口 ii2a 内，以達到定位的效果。另外，固定框13〇係配置於導光 板120以及光學膜片140上方，且固定框適於與背板ιι〇 接合，以將導光板120與光學膜片14〇固定於背板11〇上。 值得注意的是，上述之導光板12〇的定位凸耳12〇a 與光學膜片140的定位凸耳140a係直接與開口 U2a之内 緣接觸，然而由於習知在製作背板11〇的過程中，可能因 為刀具的切削而在開口 112a的内緣產生不平整之毛邊 116。如此一來，當背板110受到外力衝擊時，容易使得 導光板120之定位凸耳i2〇a(或光學膜片14〇之定位凸耳 140a)與開口 ii2a内緣之毛邊116接觸的位置產生局部應 力集中的現象，因而導致定位凸耳12〇a(或定位凸耳14〇^ 文應力作用而毀損或斷裂。此外，在將導光板12〇或光學 膜片140組立至背板11〇上時，亦可能因為與毛邊接 觸而使得導光板120或光學膜片140受到破壞，導致背光 模組100之組立良率下降。 【發明内容】 有鑑於此，本發明的目的就是在提供一種背板，其可 降低承载導光板時所產生之局部應力集中，以增強導光板 對於外力衝擊的承受度。 匕本發明的再一目的是提供一種背光模組，係使用上述 为板來承載導光板，以降低承載導光板時所產生之局部應 力集中’因此可具有較高之可靠度與組立良率。 I2479«66twfdoc 本發明的又一目的是提供一種液晶顯示器模組，係使 用上述背板來承載導光板，以降低承載導光板時所產生之 局部應力集中，因此可具有較高之可靠度與組立良率。 基於上述或其他目的，本發明提出一種背板，其適用 於一背光模組’其中背板具有底部以及垂直連接於底部外 圍之側緣，以構成可供導光板放置之空間。此外，側緣具 有開口，使得導光板與背板組立之後，導光板外圍之定位 凸耳係藉由開口而凸出於侧緣，且開口處之側緣末端係彎 折形成有一轉角，以藉由此轉角承靠定位凸耳。 本發明再提出一種背光模組，其包括一背板、一導光 板以及一光源。其中，背板具有一底部以及垂直連接於底 部外圍之側緣，而侧緣具有開口，且開口處之侧緣末端係 彎折形成有一轉角。此外，導光板係配置於背板之底部上， 且導光板具有一光入射面與一光出射面，而光源係配置於 光入射面旁。另外，導光板之外圍具有一第一定位凸耳， 其係藉由開口而凸出於側緣，且侧緣末端之轉角係承靠此 第一定位凸耳。 本發明又提出一種液晶顯示器模組，其包括一背光模 組以及一液晶顯示面板。背光模組包括一背板、一導光板 以及一光源，其中背板具有一底部以及垂直連接於底部外 圍之側緣，此側緣具有開口，且開口處之側緣末端係彎折 形成有一轉角。此外，導光板係配置於背板之底部上，導 光板具有一光入射面與一光出射面，其中光源係配置於導 光板之光入射面旁，而液晶顯示面板係配置於導光板之光 出射面上方。另外，導光板之外圍具有一第一定位凸耳， 12479¾^^ 而凸出於側緣，且侧緣末端之轉角係承靠此 本發明係姻折-後之側緣轉絲承#導絲之定位 效聽定位凸耳因局部應力集巾^導致斷裂 或宝又知之情形，進而使背光模組具有較佳之可靠度。此外， 在進行組立時’此折彎後之繼轉肖亦有助於導引定位凸 耳進入開口，因而可有效改善組立良率。 ^為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，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】 、圖2緣示為本發日緣佳實_之—種背光模組的局部 俯視圖。如圖2所繪示，背光模組2⑻包括一背板21〇、 ‘光板220、一固定框230以及一光學膜片24〇，其中 導光，220以及光學膜片240之外緣分別延伸凸出，&成 有一疋位凸耳220a以及一定位凸耳24〇a，而背板21〇具 有一底部214以及垂直連接於底部214外圍之一側緣 212’以構成可供導光板220與光學臈片24〇放置之空間。 此外，背板210之側緣212例如具有一開口 212a，且開 口 212a處之侧緣末端218係幫折形成轉角216。 請再參考圖2，當導光板220與光學膜片240組立至 背板210之後，定位凸耳220a與定位凸耳24如恰可藉由 開口 212a而凸出於側緣212外。其中，由於側緣末端218 係彎折形成轉角216，因此可藉由轉角216提供較為平整 之承靠面，以避免在導光板220之定位凸耳220a或光學 I2479^66twf,oc 膜片240之定位凸耳240a上產生局部的應力集中，進而 減少導光板220或光學膜片240毀損或斷裂之情形發生。 另外，固定框230係配置於導光板220以及光學膜片240 上方，並與背板210接合，以將導光板220與光學膜片240 固定於背板210上。 值仔一徒的疋，在本發明的較佳實施例中，上述之轉 角216的型悲可具有多種不同的變化，下文係舉例說明 之。圖3A到圖3H繪示為本發明較佳實施例中之各種轉 角彎折型態的示意圖，其中圖3A〜3D繪示為侧緣末端218 向外彎折之多種型態，而圖3E〜3H緣示為側緣末端218 向内彎折之多種型態。圖3AWE所示之轉角216例如 是直角’圖3B與3F所示之轉角216例如是弧形角，而Light Module) provides the surface light source required for the LCD panel, and at the same time, obtains sufficient brightness and contrast to make the LCD panel display. 1A is a perspective view of a conventional backlight module, and is a partial top view of the side edge of the back plate and the vicinity of the light guide plate positioning lug of FIG. As shown in FIGS. 1A and 1B, the backlight module 1 includes a back plate 11〇/light guide plate 120, a fixing frame 130, and an optical film 14〇, wherein the outer edge of the light guide plate 120 extends to protrude from a positioning lug 12 For example, the outer edge of the optical film extends to protrude from a positioning lug 140a. In addition, the back plate 11 has a bottom portion 114 and a side edge 112 vertically connected to the periphery of the bottom portion 114, which constitutes a space for the light guide plate 120 and the optical film 140 to be placed, wherein the I2479^6twfd〇c side edge 112 has an opening 112a. After the light guide plate 12 () and the optical film 140 are assembled with the back plate 110, the positioning lug of the light guide plate 12 and the positioning lug 14A of the optical film 140 can be placed in the opening ii2a to reach The effect of positioning. In addition, the fixing frame 13 is disposed above the light guide plate 120 and the optical film 140, and the fixing frame is adapted to be engaged with the back plate to fix the light guide plate 120 and the optical film 14 to the back plate 11A. It should be noted that the positioning lug 12〇a of the light guide plate 12〇 and the positioning lug 140a of the optical film 140 are directly in contact with the inner edge of the opening U2a. However, due to the conventional process of fabricating the back plate 11〇 In the meantime, uneven edges 116 may be generated at the inner edge of the opening 112a due to the cutting of the cutter. In this way, when the backing plate 110 is impacted by an external force, the position of the positioning lug i2〇a of the light guide plate 120 (or the positioning lug 140a of the optical film 14A) and the burr 116 of the inner edge of the opening ii2a is easily generated. The phenomenon of local stress concentration causes the positioning lug 12〇a (or the positioning lug 14) to be damaged or broken. Further, the light guide plate 12 or the optical film 140 is assembled to the back plate 11〇. At the same time, the light guide plate 120 or the optical film 140 may be damaged due to contact with the burrs, resulting in a decrease in the assembly yield of the backlight module 100. SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a backplane. The invention can reduce the local stress concentration generated when the light guide plate is carried, so as to enhance the tolerance of the light guide plate to external impact. 再 A further object of the present invention is to provide a backlight module, which uses the above-mentioned board to carry the light guide plate. In order to reduce the local stress concentration generated when carrying the light guide plate, it can have higher reliability and set yield. I2479 «66twfdoc Another object of the present invention is to provide a liquid crystal display The device module uses the above-mentioned backboard to carry the light guide plate to reduce the local stress concentration generated when the light guide plate is carried, so that the reliability and the assembly yield can be high. Based on the above or other objects, the present invention provides a The back plate is applicable to a backlight module. The back plate has a bottom portion and a side edge vertically connected to the periphery of the bottom portion to form a space for the light guide plate to be placed. Further, the side edge has an opening, so that the light guide plate and the back plate are assembled. Then, the positioning lug on the periphery of the light guide plate protrudes from the side edge by the opening, and the edge of the side edge of the opening is bent to form a corner to support the positioning lug by the corner. The present invention further provides a The backlight module includes a back plate, a light guide plate and a light source, wherein the back plate has a bottom portion and a side edge vertically connected to the periphery of the bottom portion, and the side edge has an opening, and the side edge end portion of the opening is bent Forming a corner. Further, the light guide plate is disposed on the bottom of the back plate, and the light guide plate has a light incident surface and a light exit surface, and the light source is disposed beside the light incident surface In addition, the periphery of the light guide plate has a first positioning lug protruding from the side edge by the opening, and the corner of the end of the side edge is supported by the first positioning lug. The invention further provides a liquid crystal display module. The group includes a backlight module and a liquid crystal display panel. The backlight module includes a back plate, a light guide plate and a light source, wherein the back plate has a bottom and a side edge vertically connected to the periphery of the bottom, the side edge has an opening And the edge of the edge of the opening is bent to form a corner. Further, the light guide plate is disposed on the bottom of the back plate, and the light guide plate has a light incident surface and a light exit surface, wherein the light source is disposed on the light guide plate. The liquid crystal display panel is disposed above the light exit surface of the light guide plate. In addition, the periphery of the light guide plate has a first positioning lug, 124793⁄4^^ protruding from the side edge, and the corner of the side edge end is The invention is based on the invention, and the rear edge of the wire-conducting guide wire guides the positioning of the guide wire to cause the breakage or the treasure to be known due to the partial stress gathers, thereby making the backlight module better. Rely on. In addition, when the assembly is performed, the subsequent rotation of the bend also helps to guide the positioning lug into the opening, thereby effectively improving the assembly yield. The above and other objects, features, and advantages of the present invention will become more apparent from the understanding of the appended claims appended claims [Embodiment] FIG. 2 is a partial top view of a backlight module of the present invention. As shown in FIG. 2 , the backlight module 2 ( 8 ) includes a back plate 21 , a light plate 220 , a fixing frame 230 , and an optical film 24 , wherein the outer edges of the light guide 220 and the optical film 240 respectively extend and protrude. And a positioning lug 220a and a positioning lug 24〇a, and the back plate 21 has a bottom 214 and a side edge 212 ′ perpendicularly connected to the periphery of the bottom 214 to form a light guide plate 220 and The space where the optical cymbal is placed 24 inches. In addition, the side edge 212 of the backing plate 210 has, for example, an opening 212a, and the side edge end 218 at the opening 212a is folded to form a corner 216. Referring to FIG. 2, after the light guide plate 220 and the optical film 240 are assembled to the back plate 210, the positioning lug 220a and the positioning lug 24 protrude from the side edge 212 just by the opening 212a. Wherein, since the side edge end 218 is bent to form the corner 216, a relatively flat bearing surface can be provided by the corner 216 to avoid the positioning lug 220a or the optical I2479^66 twf, the oc film 240 of the light guide plate 220. Local stress concentration occurs on the positioning lug 240a, thereby reducing the occurrence of damage or breakage of the light guide plate 220 or the optical film 240. In addition, the fixing frame 230 is disposed above the light guide plate 220 and the optical film 240, and is coupled to the back plate 210 to fix the light guide plate 220 and the optical film 240 to the back plate 210. In the preferred embodiment of the present invention, the above-described corner angle 216 may have a variety of variations, as exemplified below. 3A-3H are schematic views of various corner bending patterns in a preferred embodiment of the present invention, wherein FIGS. 3A to 3D illustrate various types of side edge ends 218 bent outward, and FIG. 3E~ The 3H edge is shown as a plurality of types of side edge ends 218 that are bent inward. The corner 216 shown in Fig. 3AWE is, for example, a right angle. The corners 216 shown in Figs. 3B and 3F are, for example, curved corners, and
圖3C與3G所示之轉角216例如是切角，且圖3a〜3C 與圖3E〜；3G所示之側緣末端218係以面接觸的方式 定位凸耳220a與240a。此外，圖3D與3H所示之轉 6 例如疋弧形肖’且其側緣末端218係以點接觸的方式承靠 定位凸耳220a與24〇a。 J乃式水罪 述’本發明係將背板開口處之側緣折f，以對 w::，:一較大且平整之承靠區域，其除了 n疋位凸耳之受力面積，以避免定位凸耳 (Lit外’亦可使導光板與背板之組立過程較 體分:之一較佳實施例之液晶顯示器模組的立 體刀解不思圖。液晶顯示器模組300例如 面請與上述之背光模請所構成，其⑽m 12479认· 之導光板220例如具有一光入射面fl與一光出射面β， 且光=射面fl旁係配置有光源26〇,其例如是冷陰極營 光燈笞。此外，液晶顯示面板250係配置於導光板220之 光入射面f2上方’而光源260所發出之光線係由光入射 面fl進入導光板220 ’並由光出射面卩出射至液晶顯示 面板250,以形成一均㈣面光源作為液晶顯示面板25〇 顯示之用。 綜上所述，本發明之背板及應用其之背光模組以及液 晶顯示器模組係利用背板本身側緣之彎折，以在不增加其 他元件或變更原有之尺寸設計的狀況下，提供—較為平整 的承載面，進而減少導光板上可能產生之局部的應力集 中。本發明之f板及制其之背賴_液晶顯示器模組 至少具有下列特徵與優點： 、、，（1)採用將背板接觸導光板耳部之部份折彎之方法， 3除背_緣對於導光板耳部產生之局部應力，並可避 免V光板斷裂之情形發生。 藉由將背板側緣折彎之設計增加背光模組對於外 -擊之承受度，進而提高背光模組與液晶顯示器模組之 、（3)θ板側緣折彎之設計可使導光板在組立至背板€ 過程較為平順，進而增加組立良率。 6雖然本發明已以較佳實施例揭露如上，然其並非用J =本毛明，任何熟習此技藝者，在不脫離本發明之精4 和圍内’當可作些許之更動與潤飾，因此本發明之保， ==請專利範圍所界定者為準。 :二tfit之T種背光模組的立體圖。 近的局部俯視圖^ 之背板側緣與導光板定位凸耳p 俯視^_為本發·佳實關之—種背賴組的如 為本發明較佳實施例中之各種轉 角The corners 216 shown in Figs. 3C and 3G are, for example, chamfered, and the side edges 218 shown in Figs. 3a to 3C and Figs. 3E to 3G are positioned in surface contact with the lugs 220a and 240a. Further, the turn 6 shown in Figs. 3D and 3H is, for example, a curved arc, and its side edge end 218 is supported by the positioning lugs 220a and 24A in a point contact manner. J is a water crime. The present invention folds the side edge of the opening of the back plate to a large and flat bearing area of w::,: except for the force area of the n-position lug, In order to avoid the positioning of the lugs (Lit outside ' can also make the assembly process of the light guide plate and the back plate more compact: one of the preferred embodiments of the liquid crystal display module is not solved. The liquid crystal display module 300, for example, For example, the light guide plate 220 of the above (10) m 12479 has a light incident surface fl and a light exit surface β, and a light source 26 is disposed adjacent to the light surface. In addition, the liquid crystal display panel 250 is disposed above the light incident surface f2 of the light guide plate 220, and the light emitted by the light source 260 enters the light guide plate 220' from the light incident surface fl and is emitted by the light. Executing to the liquid crystal display panel 250 to form a uniform (four) surface light source for display of the liquid crystal display panel 25. In summary, the backlight board of the present invention and the backlight module and the liquid crystal display module using the same use the back panel Bending the side edges themselves so as not to add other components or changes In the case of a sizing design, a relatively flat bearing surface is provided, thereby reducing the local stress concentration that may occur on the light guide plate. The f-plate of the present invention and the manufacturing system thereof have at least the following features and Advantages: , , (1) The method of bending the back plate to the ear portion of the light guide plate, 3 removing the local stress generated by the back edge on the ear of the light guide plate, and avoiding the occurrence of breakage of the V-plate. By designing the side edge of the backing plate to be bent, the backlight module is increased in tolerance to external shock, thereby improving the design of the backlight module and the liquid crystal display module, and the side edge of the (3) θ plate is bent to enable the light guide plate. The process of assembling to the backboard is relatively smooth, thereby increasing the assembly yield. 6 Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to use J = Ben Maoming, and anyone skilled in the art without departing from the invention. The fine 4 and the inner 'can be used for some changes and retouching, so the protection of the invention, == please define the scope of the patent.: Two-dimensional t-type backlight module stereo view. Near partial top view ^ Back side edge and guide The light plate positioning lug p is a top view of the present invention, which is a variety of corners in the preferred embodiment of the present invention.
圖3A到圖3H繪示 彎折型態的示意圖。 圖4為本發明之一較佳實施例之液晶顯示器模組的立 體分解示意圖。 【主要元件符號說明】 1G〇 :背光模組 u〇 :背板 m·側緣 112a :開口 114 :底部3A to 3H are schematic views showing a bent configuration. 4 is a schematic exploded view of a liquid crystal display module according to a preferred embodiment of the present invention. [Main component symbol description] 1G〇: backlight module u〇: back plate m·side edge 112a: opening 114: bottom
116 :毛邊 12〇:導光板 120a、140a ::定位凸耳 130 :固定框 140 :光學膜片 2〇〇 :背光模組 210 :背板 212 :側緣 11 1247953 13966twf.doc 212a :開口 214 :底部 216 :轉角 218 :側緣末端 220 :導光板 220a、240a :定位凸耳 230 :固定框 240 :光學膜片 250 ·液晶顯不面板 鲁 260 :光源 300 :液晶顯示器模組 fl :光入射面 f2 :光出射面116: burr 12: light guide plate 120a, 140a :: positioning lug 130: fixing frame 140: optical film 2 〇〇: backlight module 210: back plate 212: side edge 11 1247953 13966twf.doc 212a: opening 214: Bottom 216: corner 218: side edge end 220: light guide plate 220a, 240a: positioning lug 230: fixing frame 240: optical film 250 · liquid crystal display panel 260: light source 300: liquid crystal display module fl: light incident surface F2 : light exit surface
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