200905297 95240 21128twf.doc/n 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種背光模組、液晶顯示面板及顯示 裝置，且特別是有關於一種具有多區塊導光板的背光模組 以及使用此兔光核組的液晶顯示面板及顯示裝置。 【先前技術】 自從第一台以陰極射線管(Cathode Ray Tube, CRT)為 工作模式的黑白電視機發明以來’顯示技術便以飛快的速 度不斷演進。由於此種以陰極射線管模式工作的顯示器具 有體積大、重量重、輻射量高及晝質較差等缺點，因此平 面顯示技術便不斷地開發出新技術。在這些平面顯示技術 中，又以具有輕薄短小、省電、無輻射、全彩及方便攜帶 等優點的液晶顯示(Liquid Crystal Display，LCD)技術最 為純熟且普及化。舉凡手機、語言翻譯機、數位相機、數 位攝影機、個人數位助理(personal digital assistant，PDA)、 筆記型電腦甚至於桌上型顯示器、電視機等都有其應用範 圍。 液晶顯示器包括液晶顯示面板(Liquid Crystal Display Panel)以及背光模組(Back Light Module)。背光模組配置於 液晶顯示面板的一側，並用以提供液晶顯示面板足夠的顯 示亮度。 圖1為習知一種背光模組的示意圖。請參考圖丨，此 種背光模組1〇〇可多區域照明控制，以改善動態晝面品 200905297 95240 21128twf.doc/n 質，其包括框架110、光源120以及導光板13〇，其中光源 120及導光板130皆配置於框架11〇上，且光源120位於 導光板130的相對兩侧。在習知此一背光模組1〇〇中，光 源120被區分為多區域的獨立控制，且為了避免各區域的 背光照明會互相干擾，因此導光板130是由多片較小的導 光板132沿著框架11〇的Y方向排列而成，且導光板13〇 是藉由框架110的限位結構112以固定於框架u〇内。為 了避免影響光學效果，因此在面對光源120的部份，框架 110並無法形成此一限位結構112。換言之，限位結構η〗 只能設置於框架110未配置光源120的兩侧。如此，位於 框架110最外側的兩片導光板132雖會被限位結構112固 疋住’而其餘的導光板132則是被最外侧的兩片導光板132 限制住，因此内側的導光板132並無法有γ方向的移動。 然而’由於框架110設置光源120的兩側並無限位結 構112可以限制内側的導光板132,因此内側的導光板ι32 容易有X方向的滑動，容易造成導光板132與框架n〇或 光源120的碰撞而導致損傷。另外，由於導光板是放 置於框架110上，當搬運背光模組1〇〇時，搬運者不小心 立起或是翻轉背光模組100’或是將液晶顯示器立起觀看 使用時’導光板132容易因缺乏Z方向的限制結構而從框 架110的Z方向跌落出來。 【發明内容】 本發明之目的是提供一種多片導光板能夠穩固地固 200905297 95240 21128twfdoc/n 定於其中的背光模組。 本發明之另一目的是提供一 為達上述或是I他^ 轉置。 、他目的，本發明提出一種背弁 其包括-麵、nx及多個導光板。框架包括一底板 以及-側壁’且側壁與底板連接。侧壁具有至少—第二限 位結f二It板具有多個第二限位結構。光源配置於側壁， 導ΐ=ϊ列配置於底板上，ii位於光源旁，而第二限 源與導光板之間，其中藉由第-限位結構及 第〆限構，以限制導光板於—第-方向及-第二方向 之移動。 在f明之—實施例中，上述之第二限位結構為貫穿 底板之螺柱，而導光板對應承靠螺柱。 在本ί明之—實施例中’上述之第二限位結構為面向 導光板之突起。 if明之—實施例中’上述之導光板更包括-凹陷 部’其中犬起承靠凹陷部。 在本發明之-貫施例中，上述之框架更包括一頂蓋， 且側土與底板垂直連接’頂蓋承靠側壁並配置於底板上 方’並覆蓋部份的導光板。 在本^明之-實施例中，上述之頂蓋更具有第三限位 結構，而第三限位結構承靠部份的導光板。 在本發明之一實施例中，上述之第三限位結構為凸塊 或凸條。 在本發明之-實施例中，1述之導光板更具有一凹 200905297 95240 2I128twf.doc/n 槽，其中凸塊或凸條適於對應配置於凹槽中。 在本發明之-實施例中，上述之第三限位結構的高度 小於或荨於導光板的一半厚度。 在本發明之一實施例中，上述之第二限位結構與底板 一體成型。 在本發明之一實施例中，上述之第二限位結構的高度 小於或等於導光板的一半厚度。 〇 為達上述或是其他目的，本發明另提出一種背光模 組，其包括一框架、一光源以及多個導光板。框架包括一 底板以及一側壁，且側壁與底板連接。側壁具有至少一第 一限位結構。光源配置於側壁，而導光板依序排列配置於 底板上，並位於光源旁。至少兩個導光板具有一第二限位 結構及一第三限位結構，且第二限位結構及第三限位結構 刀別位於導光板之相對兩側面。當其中一個導光板的第二 限位結構對應承靠於另一導光板的第三限位結構時，這些 導光板可以穩固地固定於框架内。 " 在本發明之一實施例中，上述之第二限位結構為一凸 條、凸柱或凸點，而第三限位結構為一凹槽或凹孔。 在本發明之一實施例中’上述之第二限位結構為凸條 或凸检時’凸條或凸柱的長度延伸方向會相交。 為達上述或是其他目的’本發明又提出一種背光模 、'且’其包括一框架、一光源及多個導光板。框架包括一底 板以及頂盖，其中頂蓋配置於底板上方，並承靠底板之 側壁’且頂蓋具有一限位結構。光源配置於側壁，而導 200905297 95240 21128twf.doc/n 光板依序排列配置於底板與頂蓋之間，並位於光源旁。至 )一V光板具有一凹陷部，而限位結構對應配置於凹 中’以限制這些導光板的移動。 在本發明之-實施例中，上述之限位結構包括 凸柱或凸點’而凹陷部包括凹槽或凹孔。 為達上述或是其他目的，本發明更提出—種顯示吃 置’包括-液晶面板以及上述王種背光模^的其中」衣 其中为光模組配置於液晶面板之—側。 在本發明之-實施例中，上述之顯示裝置更包 置於液晶面板與背光模組之間的光學膜片。 在本發明之-實施例巾，上述之光學膜# 片、增光片、稜鏡片或這些膜片之組合。 杉政 —在本發明之背光模組中，#由框架的限位結構 導光板_動方向’以使導光板能夠穩固地固定j 内。此外，還可藉由導光板本身的限位結構以及框架 υ 位結構兩者形狀的相互配合，以使導歧能夠穩固地 ，二：面，也可以是利用導光板本;的限 π多動方向被限制住’讓多片導光板便能夠穩固 竿:Ξ光:ΐί發明之背光模組中’是利用框架、框 先板或疋¥光板與導光板之間結構上的配合而達到 組的顯示裝置，二產=靠ί用本發明之任一種背光模 200905297 95240 21128twf.doc/n 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂’下文特舉一實施例，並配合所附圖式，作詳細說明 如下。 【實施方式】 第一實施例 圖2為本發明第一實施例之背光模組的局部立體圖， 而圖3為圖2之背光模組的局部剖面圖。請同時參考圖2 及圖3，背光模組200包括一框架210、一光源220以及多 個導光板230 ’其中光源220及導光板230皆配置於框架 210上’而導光板230位於光源220旁。 承上述，框架210包括底板212以及側璧214，且側 璧214與底板212連接。本實施例之導光板230是依序排 列配置於底板212上，而光源220是配置於側璧214之一 相對兩側上’且光源220為發光二極體。框架210更包括 第一限位結構212a以及第二限位結構212b，其中第一限 位結構212a位於侧壁214無配置光源120的一相對兩侧， 而第一限位結構212b位於底板212上，且第二限位結構 212b位於光源220及導光板230之間。 請繼續同時參考圖2及圖3，由於最外側之兩片導光 板230同時承靠於第一限位結構212a以及第二限位結構 212b，而内侧的導光板230可利用彼此之間的緊密排列， 以使第一限位結構212a能夠限制住導光板230於γ方向 的移動。此外，藉由第二限位結構212b以限制各個導光板 10 200905297 95240 21128twf.doc/n 230於X方向的移動，讓多片導光板230於X方向及γ方 向的移動同時被限制住，因此導光板230能夠穩固地固定 於底板212内。 在本實施例中，第一限位結構212a為一凹槽。但在其 他未繪示的實施例中，第一限位結構212a也可以是凸塊、 沖孔或是其他可以承靠並限制導光板230移動的結構。詳 細而言’導光板230的邊緣則改為具有凸出部或者凸柱來 與第一限位結構212a的形狀對應配合即可。第二限位結構 212b為一貫穿底板212的螺柱，而導光板230即是承靠螺 柱。设置螺柱以作為第二限位結構212b乃在於組裝的便利 性，僅需於底板212加工出適當數量及大小的螺孔，並直 接將螺柱鎖入底板212中即可簡便地完成設置。在本實施 例中，螺柱的設置數量及位置如圖2所示，可僅設置於未 接觸於第一限位結構212a的部分導光板230，即可充分達 到限制導光板230於X方向上的運動。同樣地，此一第二 限位結構212b的設置原則，亦可適用於後述之實施例中 值得留意的是，為了不影響背光模組2〇〇的光亮度， 因此第二限位結構212b的設置以遮蔽或是影響光源22〇 射出之光線程度最小為原則。因此，第二限位結構212b 的鬲度Η無需過高，以小於導光板厚度l的一半為原則。 亦即，HSL/2。同樣地，此原則亦適用於以下或是其他本 §兒明書中並未提及之實施例。 200905297 95240 21128twf.doc/n 圖4為本發明第二實施例之背光模組的局部剖面圖。 請先同時參考圖3及圖4。本實施例與第一實施例大致相 同’且相同或相似的元件標號代表相同或相似的元件，而 其配置位置及元件之間的連接關係亦相同或相似，因此不 再贅述。以下將針對本實施例與第一實施例不同之處詳加 敘明。 請參考圖4，在本實施例之背光模組2〇〇，中，第二限 位結構212b’與底板212,一體成型，其是利用對底板212, 進行沖壓的步驟，以形成朝向導光板23〇之突起。 接著請同時參考圖2及圖4’由於本實施例之第二限 位結構212b’為沖孔，而多片導光板230對應承靠於第二 限位結構212b’。因此’利用第一限位結構212a以及第二 限位結構212b’，可以限制導光板230於X方向及γ方向 的移動’導光板230便能夠穩固地固定於框架21〇’内。 此外，在其他未繪示的實施例中，第二限位結構2i2b， 還可以是被設置突起於底板212,的凸塊或凸條，讓導光板 230與第二限位結構212b’有更多的接觸面積，更能夠使導 光板230穩固地固定於框架210,内。 第三實施例 圖5為本發明第三實施例之局部剖面圖。本實施例與 第二實施例大致相同，且相同之處於此不再贅述。請參考 圖5 ’為了讓導光板230’更為穩固地固定於框架21〇,内， 我們可以在導光板230’對應承靠第二限位結構212b，處形 12 200905297 95240 21128twf.doc/n 成一形狀對應的凹陷部232，凹陷部232與第二限位結構 212b’的配合更可同時提供χ-γ二軸向的固定。此外，在 將導光板230’組裝至框架210’的步驟中，凹陷部232還可 提供X-Y二維位置對位的功能，使導光板230’能夠正確地 組裝至底板212’上。 第四實施例 圖6為本發明第四實施例之背光模組的局部剖面圖。 在第四實施例中’與前述之實施例相同或相似的標號代表 相同或相似的元件，於此便不再贅述。以下僅針對不同之 處時加說明。 請參考圖6，在本實施例之背光模組3〇〇中，框架310 包括一底板312c以及一頂蓋3i2d，其中側壁314與底板 312c垂直連接’而頂蓋312d配置於底板312c上方，並承 靠於側壁314，且頂蓋312d覆蓋部份之導光板33〇。詳細 而言，第二限位結構312a位於底板312c，其用以限制導 光板330於X方向的移動，而頂蓋312d更具有一第三限 位結構312b，其可以是與頂蓋312d 一體成型的凸塊或凸 條，用以同時限制導光板33〇於χ方向及z方向的移動。 當頂盍312d覆蓋於部份的導光板33〇上時，藉由第二 限位結構312a及第三限位結構312b，導光板33〇於乂方 向及Z方向的移動同時被限制住。因此，多片導光板330 可以f固地固定於背光模組_中。此外，在其他實施例 中，第二限位結構312b也可以是利用雙面膠或是其他方 13 200905297 95240 21128twf.doc/n 法，將凸塊或凸條以黏附等方式後加工於頂蓋312d上。 第五實施例 圖7為本發明第五實施例之背光模組的局部剖面圖。 弟四實施例與苐五實施例大致相同，於此便不再贅述，以 下僅針對不同之處詳加說明。 請參考圖7，我們亦可以在每一片導光板330’上形成 與第三限位結構312b相對應的結構。舉例而言，當第三限 位結構312b為凸塊或凸條，導光板330,上與第三限位結 構312b相對應的結構便為凹槽332,而第三限位結構312b 適於容置於凹槽332内。當第三限位結構312b容置於凹槽 332内時，導光板330,於X方向的移動便會被第三限位結 構312b限制住’因此導光板33〇,可以穩固地固定於框架 31〇中’若是更進一步將彼此形狀配合的第三限位結構 312b及凹槽332設計為不連續的塊狀，那麼更可提供γ方 向的移動限制以更穩固地固定導光板330，。 此外，當第三限位結構312b容置於凹槽332内時，導 光板330’於Z方向的移動亦會被第三限位結構312b限制 住’因此在背光模組300,的搬運或是組裝過程中，導光板 330’便不會從框架310中脫落。 另外’有利用第三限位結構312b及凹槽332,我們便 可以選擇性地省去第二限位結構312a(如圖6示）的製作， 亦可節省加工工時及成本。 14 200905297 95240 21128twf.doc/n 篦六實施例 圖8為本發明第六實施例之背光模組的立體示意圖。 請參考圖8 ’背光模組400包括一框架410、一光源420 以及多個導光板430，而光源420及導光板430皆配置於 框架410内。 承上述，框架410包括一底板412以及多個侧壁414, 其中側壁414與底板412連接，而光源420即是配設於兩 相對之側壁414。框架410更包括一第一限位結構412a， 且第一限位結構412 a位於側壁414無配置光源420的一相 對兩侧。導光板430依序排列配置於底板412上，並位於 光源420旁，且最外側之兩片導光板43〇承靠第一限位結 構 412 〇 圖9A為圖8之一種導光板的立體透視圖。請參考圖 9A，每一片導光板430具有一第二限位結構432以及一第 三限位結構434，其中第二限位結構432及一第三限位結 構434分別位於導光板430的相對兩側面。在本實施例中， 第二限位結構432為凸條，而第三限位結構434為對應第 二限位結構432的凹槽。值得注意的是，凸條與凹槽的長 度方向可以是平行或垂直於導光板430的排列方向，如圖 9B示。或者’凸條與凹槽也可以是與導光板43〇的排列方 向夾一角度，呈倒”八，，字形，如圖9C示。 5月同時參考圖8及圖9A、9B及9C，當多片導光板 430排列配置於底板412時，導光板430的第二限位結構 432會承靠於另一片導光板430的第三限位結構434,而最 15 200905297 95240 21128twf.doc/n 外側之兩片導光板430又承靠於第—限位結構412。如此， 導光板430的X方向、γ方向以及2方向的移 限位結構412、第二限位結構432及第三限位結構4=限 制住。因此，導光板430可以穩固地固定於框架内。 Ο 特別的是，若是使第二限位結構432及第三限位結構 434的配置如目9C示之為倒，，八，，字形，便可因導光板43〇 間兩兩組合後對導光板430同時產生χ、γ及ζ方向的限 位功能。如此，我們便不需在導光板上形成有如圖9α盥 9Β之盲孔形的凹槽的第一限位結構412 ’在對導光板32〇 的凹槽加工上，無論是以射出成型或者切削加工上更加便 易、可節省製作時間及成本。 第七實施例 圖10為本發明第七實施例之導光板的立體示意圖。請 麥考圖10,本實施例與第六實施例相同，其不同之處在 於：本實施例之第二限位結構432,為一凸柱，而第三限位 結構434’為對應於第二限位結構432’之凹孔。 當多片導光板430’排列配置於底板412時，導光板 430’的第二限位結構432’會承靠於另一片導光板430,的第 三限位結構434’，而最外側之兩片導光板430,又承靠於第 一限位結構412a’因此導光板430,的X方向、γ方向以及 Z方向的移動會被第一限位結構412a、第二限位結構432, 及第三限位結構434’限制住。因此，導光板430,可以穩固 地固定於框架410内。 16 200905297 95240 21128twf.doc/n 由於第二限位結構432，及第三限位結構434,可使導 光板430’之間同時產生X、γ及z方向的限位，因此我們 也可以選擇性地不需在底板412上製作第一限位結構 412a，節省加工或製造成本。 第八實施例 圖Π為應用本發明第一實施例之背光模組的顯示裝 置示意圖。請參考圖11 ’將一液晶面板600與上述之背光 模組200組立，以形成顯示裝置700。為了讓背光模組2〇〇 能夠提供液晶面板600均勻的面光源，我們還可以在液晶 面板600與背光模組2〇〇之間配設一光學膜片61〇。在本 實施例中’光學膜片610可以是擴散片、增光片、棱鏡片 或是這些膜片之組合。The invention relates to a backlight module, a liquid crystal display panel and a display device, and more particularly to a backlight having a multi-block light guide plate. The module and the liquid crystal display panel and the display device using the rabbit photon group. [Prior Art] Since the invention of the first black-and-white television set operating in a cathode ray tube (CRT), the display technology has been evolving at a rapid rate. Since such a display device operating in a cathode ray tube mode has disadvantages such as large volume, heavy weight, high radiation amount, and poor enamel, the flat display technology has continuously developed new technologies. Among these flat display technologies, liquid crystal display (LCD) technology, which is light, short, power-saving, non-radiative, full-color, and portable, is the most sophisticated and popular. Mobile phones, language translators, digital cameras, digital cameras, personal digital assistants (PDAs), notebook computers, and even desktop monitors and televisions have applications. The liquid crystal display includes a liquid crystal display panel and a backlight module. The backlight module is disposed on one side of the liquid crystal display panel and is used to provide sufficient display brightness of the liquid crystal display panel. FIG. 1 is a schematic diagram of a conventional backlight module. Please refer to the figure 丨, the backlight module 1 can be multi-zone lighting control to improve the dynamic facet product 200905297 95240 21128 twf.doc / n quality, including the frame 110, the light source 120 and the light guide plate 13 〇, wherein the light source 120 The light guide plates 130 are disposed on the frame 11 , and the light sources 120 are located on opposite sides of the light guide plate 130 . In the conventional backlight module 1 , the light source 120 is divided into independent control of multiple regions, and in order to prevent backlight illumination of each region from interfering with each other, the light guide plate 130 is composed of a plurality of smaller light guide plates 132 . Arranged along the Y direction of the frame 11〇, and the light guide plate 13〇 is fixed in the frame u〇 by the limiting structure 112 of the frame 110. In order to avoid affecting the optical effect, the frame 110 cannot form the limiting structure 112 in the portion facing the light source 120. In other words, the limit structure η can only be disposed on both sides of the frame 110 where the light source 120 is not disposed. Thus, the two light guide plates 132 located at the outermost side of the frame 110 are fixed by the limiting structure 112 while the remaining light guide plates 132 are restrained by the outermost two light guide plates 132, so the inner light guide plate 132 There is no movement in the gamma direction. However, since the frame 110 is disposed on both sides of the light source 120 and the infinite position structure 112 can restrict the inner light guide plate 132, the inner light guide plate ι32 is easy to slide in the X direction, which easily causes the light guide plate 132 and the frame n or the light source 120. Collision causes damage. In addition, since the light guide plate is placed on the frame 110, when the backlight module 1 is transported, the carrier accidentally raises or flips the backlight module 100' or when the liquid crystal display is raised and viewed, the light guide plate 132 is used. It is easy to fall out from the Z direction of the frame 110 due to the lack of the Z-direction restricting structure. SUMMARY OF THE INVENTION It is an object of the present invention to provide a backlight module in which a plurality of light guide plates can be firmly fixed to 200905297 95240 21128 twfdoc/n. Another object of the present invention is to provide a transposition of the above or the other. For his purposes, the present invention proposes a back-up including a face, an nx and a plurality of light guide plates. The frame includes a bottom plate and a side wall and the side walls are joined to the bottom plate. The sidewall has at least a second limiting junction f. The two panels have a plurality of second limiting structures. The light source is disposed on the sidewall, the guide ΐ ϊ is arranged on the bottom plate, the ii is located beside the light source, and the second source is connected between the light source and the light guide plate, wherein the light guide plate is restrained by the first limit structure and the third limit structure - movement of the first direction and the second direction. In the embodiment, the second limiting structure is a stud that penetrates the bottom plate, and the light guide plate corresponds to the stud. In the embodiment of the present invention, the second limiting structure is a protrusion facing the light guide plate. If it is ascertained that the above-mentioned light guide plate further includes a depressed portion, wherein the dog bears against the depressed portion. In the embodiment of the present invention, the frame further includes a top cover, and the side soil is vertically connected to the bottom plate. The top cover bears against the side wall and is disposed above the bottom plate and covers a portion of the light guide plate. In the embodiment of the present invention, the top cover has a third limit structure, and the third limit structure bears a portion of the light guide plate. In an embodiment of the invention, the third limiting structure is a bump or a ridge. In the embodiment of the present invention, the light guide plate of the first embodiment has a recessed 200905297 95240 2I128twf.doc/n slot, wherein the bump or the rib is adapted to be correspondingly disposed in the recess. In an embodiment of the invention, the height of the third limiting structure is less than or less than half the thickness of the light guide plate. In an embodiment of the invention, the second limiting structure is integrally formed with the bottom plate. In an embodiment of the invention, the height of the second limiting structure is less than or equal to half the thickness of the light guide plate. In order to achieve the above or other objects, the present invention further provides a backlight module comprising a frame, a light source and a plurality of light guide plates. The frame includes a bottom plate and a side wall, and the side walls are coupled to the bottom plate. The side wall has at least one first stop structure. The light source is disposed on the sidewall, and the light guide plate is sequentially arranged on the bottom plate and located beside the light source. The at least two light guide plates have a second limit structure and a third limit structure, and the second limit structure and the third limit structure are located on opposite sides of the light guide plate. When the second limiting structure of one of the light guiding plates corresponds to the third limiting structure of the other light guiding plate, the light guiding plates can be firmly fixed in the frame. < In an embodiment of the invention, the second limiting structure is a ridge, a stud or a bump, and the third limiting structure is a groove or a recess. In an embodiment of the present invention, when the second limiting structure is a rib or a convex inspection, the length extension directions of the ribs or the studs may intersect. In order to achieve the above or other objects, the present invention further provides a backlight module, 'and' which includes a frame, a light source and a plurality of light guide plates. The frame includes a bottom panel and a top cover, wherein the top cover is disposed above the bottom panel and bears against the side wall of the bottom panel and the top cover has a limiting structure. The light source is disposed on the side wall, and the light guide plate is arranged between the bottom plate and the top cover in sequence, and is located beside the light source. To a V-plate having a recess, and the limiting structure is correspondingly disposed in the recess to limit the movement of the light guides. In an embodiment of the invention, the constraining structure comprises a stud or a bump and the recess comprises a recess or a recess. In order to achieve the above or other objects, the present invention further provides a display device comprising: a liquid crystal panel and the above-mentioned king backlight module, wherein the optical module is disposed on the side of the liquid crystal panel. In an embodiment of the invention, the display device described above further includes an optical film disposed between the liquid crystal panel and the backlight module. In the embodiment of the present invention, the above-mentioned optical film #片, brightness enhancement sheet, enamel sheet or a combination of these films. Sugisui - In the backlight module of the present invention, # is limited by the frame structure of the light guide plate _ moving direction so that the light guide plate can be firmly fixed in j. In addition, the shape of the light guide plate itself and the shape of the frame clamping structure can be matched to each other, so that the guide can be stably stabilized, or the light guide plate can be used; The direction is limited to 'allow multiple light guide plates to be stable: Ξ光: ΐίInvented backlight module' is achieved by using the frame, the frame first plate or the structural cooperation between the light plate and the light guide plate to achieve the group The above-described and other objects, features and advantages of the present invention will become more apparent from the following description. The details will be described below in conjunction with the drawings. [Embodiment] FIG. 2 is a partial perspective view of a backlight module according to a first embodiment of the present invention, and FIG. 3 is a partial cross-sectional view of the backlight module of FIG. Referring to FIG. 2 and FIG. 3 , the backlight module 200 includes a frame 210 , a light source 220 , and a plurality of light guide plates 230 ′ wherein the light source 220 and the light guide plate 230 are disposed on the frame 210 and the light guide plate 230 is located adjacent to the light source 220 . . In view of the above, the frame 210 includes a bottom plate 212 and side sills 214, and the side sills 214 are coupled to the bottom plate 212. The light guide plate 230 of the embodiment is arranged on the bottom plate 212 in sequence, and the light source 220 is disposed on opposite sides of one of the side turns 214 and the light source 220 is a light emitting diode. The frame 210 further includes a first limiting structure 212a and a second limiting structure 212b. The first limiting structure 212a is located on an opposite side of the sidewall 214 without the light source 120, and the first limiting structure 212b is located on the bottom plate 212. The second limiting structure 212b is located between the light source 220 and the light guide plate 230. Please continue to refer to FIG. 2 and FIG. 3 simultaneously, since the outermost two light guide plates 230 simultaneously bear against the first limiting structure 212a and the second limiting structure 212b, and the inner light guiding plate 230 can utilize the tightness between each other. The arrangement is such that the first limiting structure 212a can restrict the movement of the light guide plate 230 in the γ direction. In addition, by the second limiting structure 212b, the movement of the respective light guide plates 10 200905297 95240 21128 twf.doc/n 230 in the X direction is restricted, so that the movement of the plurality of light guide plates 230 in the X direction and the γ direction is simultaneously restricted. The light guide plate 230 can be firmly fixed in the bottom plate 212. In this embodiment, the first limiting structure 212a is a groove. However, in other embodiments not shown, the first limiting structure 212a may also be a bump, a punch, or other structure that can bear and limit the movement of the light guide plate 230. More specifically, the edge of the light guide plate 230 may have a projection or a stud to match the shape of the first stopper structure 212a. The second limiting structure 212b is a stud extending through the bottom plate 212, and the light guide plate 230 is a bearing stud. The arrangement of the studs as the second limiting structure 212b lies in the convenience of assembly. It is only necessary to machine the appropriate number and size of screw holes in the bottom plate 212, and directly lock the studs into the bottom plate 212 to easily complete the setting. In this embodiment, the number and position of the studs are as shown in FIG. 2, and may be disposed only on a portion of the light guide plate 230 that is not in contact with the first limiting structure 212a, so as to fully limit the light guide plate 230 in the X direction. exercise. Similarly, the setting principle of the second limiting structure 212b can also be applied to the embodiment described later. It is worth noting that, in order not to affect the brightness of the backlight module 2, the second limiting structure 212b The setting is based on the principle of shielding or affecting the minimum amount of light emitted by the light source 22. Therefore, the twist of the second limiting structure 212b need not be too high, and is less than half of the thickness l of the light guide plate. That is, HSL/2. Similarly, this principle also applies to the following or other embodiments not mentioned in this document. 200905297 95240 21128twf.doc/n FIG. 4 is a partial cross-sectional view showing a backlight module according to a second embodiment of the present invention. Please refer to Figure 3 and Figure 4 at the same time. The present embodiment is substantially the same as the first embodiment, and the same or similar component numbers denote the same or similar components, and the arrangement positions and the connection relationships between the components are the same or similar, and therefore will not be described again. The differences between the present embodiment and the first embodiment will be described in detail below. Referring to FIG. 4 , in the backlight module 2 本 of the embodiment, the second limiting structure 212 b ′ and the bottom plate 212 are integrally formed by using a step of stamping the bottom plate 212 to form a light guiding plate. 23 protuberances. Referring to FIG. 2 and FIG. 4' at the same time, the second limiting structure 212b' of the embodiment is punched, and the plurality of light guiding plates 230 are correspondingly supported by the second limiting structure 212b'. Therefore, by using the first stopper structure 212a and the second stopper structure 212b', the movement of the light guide plate 230 in the X direction and the γ direction can be restricted, and the light guide plate 230 can be stably fixed in the frame 21'. In addition, in other embodiments not shown, the second limiting structure 2i2b may also be a protrusion or a ridge provided to protrude from the bottom plate 212, so that the light guide plate 230 and the second limiting structure 212b' have more The contact area of the light guide plate 230 can be firmly fixed to the frame 210. THIRD EMBODIMENT Fig. 5 is a partial cross-sectional view showing a third embodiment of the present invention. This embodiment is substantially the same as the second embodiment, and the same portions are not described herein again. Please refer to FIG. 5 'In order to make the light guide plate 230' more firmly fixed to the frame 21〇, we can correspond to the second limiting structure 212b in the light guide plate 230', and the shape 12 1205 05152 The recessed portion 232 corresponding to the shape, the cooperation of the recessed portion 232 and the second limiting structure 212b' can simultaneously provide the χ-γ biaxial fixing. Further, in the step of assembling the light guide plate 230' to the frame 210', the recess portion 232 can also provide the X-Y two-dimensional position alignment function, enabling the light guide plate 230' to be correctly assembled to the bottom plate 212'. Fourth Embodiment FIG. 6 is a partial cross-sectional view showing a backlight module according to a fourth embodiment of the present invention. In the fourth embodiment, the same or similar reference numerals as those of the foregoing embodiments denote the same or similar elements, and the description thereof will not be repeated. The following only describes the differences. Referring to FIG. 6, in the backlight module 3 of the embodiment, the frame 310 includes a bottom plate 312c and a top cover 3i2d, wherein the side wall 314 is vertically connected with the bottom plate 312c and the top cover 312d is disposed above the bottom plate 312c. The side wall 314 is supported, and the top cover 312d covers a portion of the light guide plate 33A. In detail, the second limiting structure 312a is located on the bottom plate 312c for limiting the movement of the light guide plate 330 in the X direction, and the top cover 312d further has a third limiting structure 312b, which may be integrally formed with the top cover 312d. The bump or the rib is used to simultaneously restrict the movement of the light guide plate 33 in the x direction and the z direction. When the top ridge 312d covers the portion of the light guide plate 33, the movement of the light guide plate 33 in the 乂 direction and the Z direction is simultaneously restricted by the second limiting structure 312a and the third limiting structure 312b. Therefore, the plurality of light guide plates 330 can be fixedly fixed in the backlight module_. In addition, in other embodiments, the second limiting structure 312b may also be processed on the top cover by using a double-sided tape or other method 13 200905297 95240 21128 twf.doc/n method to adhere the bump or the ridge to the top cover. On 312d. Fifth Embodiment FIG. 7 is a partial cross-sectional view showing a backlight module according to a fifth embodiment of the present invention. The fourth embodiment is substantially the same as the fifth embodiment, and will not be described again herein. Only the differences will be described in detail below. Referring to FIG. 7, we can also form a structure corresponding to the third stopper structure 312b on each of the light guide plates 330'. For example, when the third limiting structure 312b is a bump or a ridge, the light guide plate 330 has a corresponding structure corresponding to the third limiting structure 312b, and the third limiting structure 312b is suitable for the receiving. Placed in the recess 332. When the third limiting structure 312b is received in the recess 332, the movement of the light guide plate 330 in the X direction is restricted by the third limiting structure 312b. Therefore, the light guide plate 33 is fixed to the frame 31. If the third limiting structure 312b and the groove 332 which are further shaped to each other are designed as a discontinuous block, the movement restriction in the γ direction can be further provided to fix the light guide plate 330 more stably. In addition, when the third limiting structure 312b is received in the recess 332, the movement of the light guide plate 330' in the Z direction is also restricted by the third limiting structure 312b. Therefore, the backlight module 300 is carried or The light guide plate 330' does not fall off the frame 310 during assembly. In addition, by using the third limiting structure 312b and the recess 332, we can selectively eliminate the fabrication of the second limiting structure 312a (shown in Figure 6), and also save processing time and cost. 14 200905297 95240 21128 twf.doc/n 实施 Sixth Embodiment FIG. 8 is a perspective view of a backlight module according to a sixth embodiment of the present invention. Referring to FIG. 8 , the backlight module 400 includes a frame 410 , a light source 420 , and a plurality of light guide plates 430 , and the light source 420 and the light guide plate 430 are disposed in the frame 410 . In the above, the frame 410 includes a bottom plate 412 and a plurality of side walls 414, wherein the side walls 414 are connected to the bottom plate 412, and the light source 420 is disposed on the opposite side walls 414. The frame 410 further includes a first limiting structure 412a, and the first limiting structure 412a is located on opposite sides of the side wall 414 without the light source 420. The light guide plate 430 is arranged on the bottom plate 412 in sequence, and is located beside the light source 420, and the outermost two light guide plates 43 are supported by the first limiting structure 412. FIG. 9A is a perspective view of the light guide plate of FIG. . Referring to FIG. 9A , each of the light guide plates 430 has a second limiting structure 432 and a third limiting structure 434 . The second limiting structure 432 and the third limiting structure 434 are respectively located on the opposite sides of the light guiding plate 430 . side. In this embodiment, the second limiting structure 432 is a ridge, and the third limiting structure 434 is a groove corresponding to the second limiting structure 432. It should be noted that the length direction of the ribs and the grooves may be parallel or perpendicular to the arrangement direction of the light guide plate 430, as shown in Fig. 9B. Or, the ridges and the grooves may be at an angle to the direction of the arrangement of the light guide plates 43, in an inverted "eight" shape, as shown in Fig. 9C. May also refer to Fig. 8 and Figs. 9A, 9B and 9C. When the plurality of light guide plates 430 are arranged on the bottom plate 412, the second limiting structure 432 of the light guide plate 430 bears against the third limit structure 434 of the other light guide plate 430, and the outermost side is 2009-15297 95240 21128 twf.doc/n The two light guide plates 430 are further supported by the first limiting structure 412. Thus, the X-direction, the γ-direction and the 2-direction shifting structure 412, the second limiting structure 432 and the third limiting structure of the light guiding plate 430 4=Restricted. Therefore, the light guide plate 430 can be firmly fixed in the frame. Ο In particular, if the arrangement of the second limiting structure 432 and the third limiting structure 434 is shown as item 9C, ,, the font shape can be combined with the light guide plate 43 to produce the χ, γ and ζ direction of the light guide plate 430 at the same time. Therefore, we do not need to form a light guide plate as shown in Fig. 9α盥9Β The first limiting structure 412 ′ of the blind hole-shaped groove is processed on the groove of the light guide plate 32 The injection molding or cutting process is more convenient, and the production time and cost can be saved. Seventh Embodiment FIG. 10 is a perspective view of a light guide plate according to a seventh embodiment of the present invention. The sixth embodiment is the same in that the second limiting structure 432 is a protrusion and the third limiting structure 434' is a concave hole corresponding to the second limiting structure 432'. When the plurality of light guide plates 430 ′ are arranged on the bottom plate 412 , the second limiting structure 432 ′ of the light guide plate 430 ′ will bear against the third limiting structure 434 ′ of the other light guiding plate 430 , and the outermost two The sheet light guide plate 430 is further supported by the first limiting structure 412a'. Therefore, the movement of the light guiding plate 430 in the X direction, the γ direction and the Z direction is adopted by the first limiting structure 412a, the second limiting structure 432, and the The three-limiting structure 434' is constrained. Therefore, the light guide plate 430 can be firmly fixed in the frame 410. 16 200905297 95240 21128twf.doc/n Due to the second limiting structure 432 and the third limiting structure 434, The X, γ, and z directions are simultaneously generated between the light guide plates 430', because Alternatively, the first limiting structure 412a may be formed on the bottom plate 412 to save processing or manufacturing costs. The eighth embodiment is a schematic diagram of a display device of a backlight module to which the first embodiment of the present invention is applied. Referring to FIG. 11 ', a liquid crystal panel 600 is assembled with the backlight module 200 described above to form a display device 700. In order to allow the backlight module 2 to provide a uniform surface light source of the liquid crystal panel 600, we can also use the liquid crystal panel 600 with An optical film 61 is disposed between the backlight modules 2A. In the present embodiment, the optical film 610 may be a diffusion sheet, a brightness enhancement sheet, a prism sheet or a combination of these films.
由於夕片導光板230能夠穩固地配置在背光模組2〇〇 中，因此顯示裝置700具有產品可靠度QSince the illuminating light guide plate 230 can be stably disposed in the backlight module 2, the display device 700 has product reliability Q.
U 值知庄思的疋，雖然本實施例之顯示裝置7〇〇是應用 第一實施例之背光模組200，但熟習該項技藝者亦可將第 二〜第七實施例之背光模組應用於顯示裝置中。 综上所述，在本發明之背光模組中，可藉由框架的限 位結構錄制每-片導光板的移動方向，贿導光板能夠 穩固地蚊練軸。此外，還可藉由導输本身的限位 結構以及框架的限位結構_形_相互配合， 板能夠穩固地固定於框架内。另—方面，也可 光板本身的隸結構與另-片導光板的限位結構相互配 200905297 95240 21128twf.doc/n 合，以使導光板的移動方向被限制住，讓多片導光板便能 多固地固定於框架内。因此，在本發明之背光模組中， 疋利用框架、框架與導光板或是導光板與導光板之間結構 上的配合而達到多片導光板固定於框架内的目的，背光模 、、且=有產品可罪度及組裝便利性。另外，將本發明之任一 種背光模組應用於顯示裝置中，顯示裝置具有產品可靠度。 雖然本發明已以—實施例揭露如上，然其並非用以限 〇 =本發明’任何賴驗賴巾具有通常知識者， =發明之精神和範圍内，當可作些許之更動與潤飾，因 ^本發明之紐範圍當視請翻範_界定者為 【圖式簡單說明】 圖1為習知一種背光模組的示意圖。 圖2為本發明第-實施例之背光模組的局部 圖3為圖2之背光模組的局部剖面圖。 —θ 圖4為本發明第二實施例之背光模組的局 圖5為本發明第三實施例之局部剖面圖。 圖 圖6為本發明第四實施例之背光模組的 圖7為本發明第五實施例之背光模組的局部^圖 圖8為本發明第六實施例之背光模組的立^音圖 圖9Α為圖8之一種導光板的立體透視圖。圖 圖9Β為圖8之另一種導光板的立體透視圖。 圖9C為圖8之再一種導光板的立體透視圖。 18 200905297 95240 21128twf.doc/n 圖ίο為本發明第七實施例之導光板的立體示意圖。 圖11為應用本發明第一實施例之背光模組的顯示裝 置示意圖。 【主要元件符號說明】 100、200、200’、300、400 :背光模組 110、210、210’、310、410 :框架 p 112:限位結構 120、220、420 :光源 130、230、230,、330、330,、430、430,：導光板 132 :較小的導光板 212、212’、412 :底板 212a、412a :第一限位結構 212b、212b’、312a、432、432’ ：第二限位結構 214、314、414 :側壁 232 :凹陷部 ◎ 312b:第三限位結構 312c :底板 312d :頂蓋 332 :凹槽 434、434,：第三限位結構 600 .液晶面板 700 :顯示裝置 610 :光學膜片 19The U value is known as the backlight module of the first embodiment. Although the display device 7 of the present embodiment is the backlight module 200 of the first embodiment, the backlight module of the second to seventh embodiments may be used by those skilled in the art. Applied to display devices. In summary, in the backlight module of the present invention, the moving direction of each of the light guide plates can be recorded by the frame limiting structure, and the light guiding plate can stably stabilize the shaft. In addition, the plate can be firmly fixed in the frame by the limit structure of the guide itself and the limit structure of the frame. On the other hand, the lining structure of the light board itself and the limit structure of the other light guide plate are matched with each other so that the moving direction of the light guide plate is restricted, so that the plurality of light guide plates can be replaced. More solidly fixed in the frame. Therefore, in the backlight module of the present invention, the frame, the frame and the light guide plate or the structural cooperation between the light guide plate and the light guide plate achieve the purpose of fixing the plurality of light guide plates in the frame, the backlight module, and = Product sin and assembly convenience. Further, any of the backlight modules of the present invention is applied to a display device having product reliability. Although the present invention has been disclosed in the above-described embodiments, it is not intended to limit the present invention to any of the ordinary knowledge of the invention, and in the spirit and scope of the invention, when some changes and refinements can be made, The scope of the invention is as shown in the drawings. FIG. 1 is a schematic diagram of a conventional backlight module. 2 is a partial view of a backlight module according to a first embodiment of the present invention. FIG. 3 is a partial cross-sectional view of the backlight module of FIG. Fig. 4 is a partial cross-sectional view showing a backlight module according to a second embodiment of the present invention. Fig. 5 is a partial cross-sectional view showing a third embodiment of the present invention. FIG. 6 is a partial view of a backlight module according to a fifth embodiment of the present invention. FIG. 8 is a schematic diagram of a backlight module according to a sixth embodiment of the present invention. Figure 9 is a perspective perspective view of a light guide plate of Figure 8. Figure 9 is a perspective perspective view of another light guide plate of Figure 8. 9C is a perspective perspective view of still another light guide plate of FIG. 8. 18 200905297 95240 21128 twf.doc/n FIG. 1 is a perspective view of a light guide plate according to a seventh embodiment of the present invention. Fig. 11 is a view showing a display device of a backlight module to which the first embodiment of the present invention is applied. [Main component symbol description] 100, 200, 200', 300, 400: backlight module 110, 210, 210', 310, 410: frame p 112: limit structure 120, 220, 420: light source 130, 230, 230 , 330, 330, 430, 430,: light guide plate 132: smaller light guide plates 212, 212', 412: bottom plate 212a, 412a: first limit structure 212b, 212b', 312a, 432, 432': Second limiting structure 214, 314, 414: sidewall 232: recessed portion ◎ 312b: third limiting structure 312c: bottom plate 312d: top cover 332: recess 434, 434, third limiting structure 600. liquid crystal panel 700 : display device 610: optical film 19