1327.667. 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種背光模組’特別是一種LED光源 之背光模組。 【先前技術】 ί 隨者液晶顯示器製作技術的快速進步，且由於液晶顯 ，示器具有輕薄、省電、無輻射線等優點，而大量的應用於 個人數位助理器（Personal Digital Assistant，PDA)、筆記型 電腦、桌上型電腦、數位相機、攝錄影機、行動電話等各 式產品中。由於液晶顯示器是一種非自發光的顯示裝置， 需要借助背光模組才具有發光顯示的功能。習知液晶顯示 器之背光模組(Back Lighting Module)大多採用冷陰極燈管 .(Cold Cathode Fluorescent Lamp, CCFL)作為發光源，然而 發光二極體(Light Emitting Diode, LED)可增加其色彩飽和 度；有鑑於此，利用發先二極體(LED)作為發光源之背光 ' 模組曰漸普遍。 第一 A圖及第一 B圖分別為一種習知背光模組的立體 爆炸圖與剖面示意圖。如第一 A圖及第一 B圖所示，此 1327667 , 背光模組1，包括：膠框10、條型LED光源11、導光板 12以及反射片（Reflecting Sheet)13。其中，膠框1〇包含底 座100、承載座101及側壁102，侧壁102設於底座1〇〇 上且環繞於底座100的外緣，定義出一容置室；承載座101 係沿著側壁102之内側而設於底座1〇〇上；承載座ι〇1對 應於燈源’用以承載條型LED光源11，此承載座101上 設有至少一個立方形狀凹洞的LED空間，每一凹洞之開 ® 口朝向導光板入光面及凹洞上方，以容置LED 112，並使 • LED U2光源能進入導光板12之入光面；導光板12，置 於膠框10之底板1〇〇上。反射片13置於導光板12與膠 框之底板100之間；條型LED光源11，於電路基板in 上承載至少一個LED112，該條型LED光源11置於導光 板之入光面側及承載座1〇1上，並與導光板12上之電 鲁路基板貼膠處121以雙面膠貼的方式固定。此一條型LED 光源以側光方式提供背光’且其固定方式以雙面膠貼於貼 膠處固定於導光板12侧’其於信賴性實驗時有脫落的疑 .:因此，在生產過程中若有貼附不良，將不易修復，而 i加材料成本。此外’隨著面板尺寸越做越大，條型led '光綠易有輝度不足的現象。 餘於上述傳統背光模組的缺點，有必要提供一種背光 1327667 . * * , 模組以達到高輝度的需求，並有效固定光源。 【發明内容】 • 本發明的目的之一在於提供一光源的固定結構，使條 - 型光源固定於框架上。 A 本發明的另一目的在於提供一種L型光源之結構。藉 9 由L型光源，提供足夠光源以達到現行高輝度液晶顯示器 之要求，並藉由L型光源的固定結構，使L型光源在X、 Y軸方向得到有效固定》 本發明的再一目的在於提供一種L型光源之背光模 組。藉由背光模組的結構設計，使L型光源在X、Y、Z φ 軸三方向都得到固定，並提供足夠光源以達到現行高輝度 液晶顯不裔之要求。 根據上述目的，本發明提出一種條型光源之固定結 構。其中，條型光源由至少一個LED黏貼於電路基板上。 框架包含侧壁、邊框以及複數個凸塊。當條型光源嵌入框 架時，電路基板被凸塊與側壁夾集，以固定條型光源之X 與Y轴方向。 本發明更提出一種L型光源之固定結構。將一 L塑光 源’框膠之複數個凸塊設於邊框對應於£型光源之兩側， 當L型光源嵌入框架後，電路基板之凸塊區段被框架之複 數個凸塊與側壁夾集而固定。 根據本發明之一較佳實施例，此背光模組包括··背板’ 包括一底板以及一第一側壁，第一侧壁環繞底板的外緣以 定義出一容置室；框架，置於背板之容置室内，包括一邊 框、一第二側壁以及複數，凸塊，邊框具有一下表面與一 上表面，第二侧壁設於邊框之下表面且環繞邊框的外緣， 複數個凸塊設於邊框之下表面，其垂直於邊框之下表面且 平行第二側壁；導光板，置於背板之底板上；一光源，置 於該導光板之入射面侧，且位於框架之第二侧壁與複數個 凸塊間，以固定光源的X與γ軸方向。框架與背板組立 時，框架與背板上下夾集，固定光源的Z轴方向。 【實施方式】 本發明一些實施例的詳細描述如下，然而，除了該詳 細插述外，本發明還可以廣泛地在其它他的實施例施行。 亦即，本發明的範圍不受已提出之實施例的限制。當本發 1327667.; 明之實施例圖示中的各元件或結構在描述說明時，不應以 此作為有限定的認知，即如下之說明未特別強調數目上的 限制時’本發明之精神與應用範圍可推及多數個結構並存 ^ 的結構上。 第一圖之立體示意圖顯示本發明實施例之光源之固定 方法與結構。如第二圖所示，框架21包含側壁211、以及 鲁邊框213以及複數個凸塊215。側壁211係設於邊框213 上且環繞於邊框213的外緣；複數個凸塊215係設於邊框 213之一側的上表面’且平行於側壁211。條型光源20包 含電路基板201及至少一個LED 203，LED 203以表面黏 著法（Surface Mount Technology，SMT)黏著於電路基板 201 上，本實施例僅以LED光源為例，但並不以此為限，也 可應用其他光源’例如冷陰極燈管光源。當條型光源2〇 籲嵌入框架21時’電路基板201置於凸塊215與侧壁211 間而固定，以有效固定光源之又與¥軸方向。 • 第三圖之立體示意圖顯示本發明另一實施例之L型光 源的固定結構。一 L型光源3〇，係用以增加液晶顯示面 板的輝度’本實施例僅以LED光源為例，但並不以此為 限’也可應用其他光源，例如冷陰極燈管光源。對應L型 11 1327667 , . . . . 光源30之框架邊框311上設置複數個凸塊315，此複數個 凸塊315垂直於邊框311之上表面且平行於側壁312之L 型兩侧（對應L型光源）。因此，將L型光源30嵌入框架31， 使L型光源30收容於框架31之侧壁312與複數個凸塊315 之間，.以有效固定光源。 第四圖之立體爆炸圖顯示本發明一較佳實施例之背光 #模組的分解結構。背光模組包含背板40、框架41、L型 光源42、導光板43、以及反射片（圖中未示）。其為倒置 的分解結構(上下顛倒），目的在使框架41的結構能清楚呈 « · 現0 第五及第六圖之剖面示意圖顯示第四圖之背光模組的 局部分解結構及組立結構。此實施例之光源是以L型光源 _ 為例（但不以此為限）。如第五圖及第六圖所示，背光模組 4包含背板40、框架41、L型光源42、導光板43、以及 反射片（圖中未示）。背板40之材質可例如為鋁，包含底板 -401及第一側壁402，第一側壁402環繞底板401的外緣 以定義出一容置室，以容置反射片、嵌有L型光源42的 框架41以及導光板43。框架41之材質可例如為一塑膠材 質，框架41包含第二側壁411、第三側壁412、邊框413、 12 1327667 , · * · I ' 以及複數個凸塊415。邊框413具有一下表面與一上表面， 第二侧壁411係設於邊框413之下表面且環繞邊框413的 外緣，複數個凸塊415設於邊框413之下表面，垂直於邊 框下表面且平行於第二側壁411之L型兩側侧壁。第三側 壁412係設於邊框413上且環繞邊框413的外緣，邊框413 的上表面係用以置放液晶顯示面板。導光板43設置於背 板40之底板401上。反射片（圖中未示）係配置於導光板43. 鲁及背板40的底板401之間。L型光源為如第三圖所示之 光源’本實施例僅以LED光源為例，但並不以此為限， 也可應用其他光源，例如冷陰極燈管光源。由導光板43 之一長、一短(L型）兩側邊入光，以增加液晶顯示面板的 輝度。當L型光源42嵌入框架41時，電路基板421之凸 塊區段被凸塊415與第二側壁411夾集而固定，使電路基 板421收容於複數個凸塊415與第二側壁411之間，以有 • 效固定光源，使LED 423光線穩定自導光板43之入光面 導入。 然後，將框膠41與背板40組立，框架41與背板40 上下夾集，固定光源的Z軸方向，避免Z軸方向位移，如 第六圖所示。此外，上述鋁製底板401與L型光源42的 接觸面為一散熱部，用來降低L型光源的溫度。 1327667 上述之光源不以L型光源或條型光源為限。當液晶顯 示面板尺寸變大，光源輝光不足時，光源更可擴增至三邊 型光源或四邊型光源。任何側光式光源皆可以本發明之嵌 入法固定其X、Y、Z轴方向。如此，光源在X、γ、z三 方向皆可獲得絕佳保護，亦可加強光源的固定，以提高機 械衝擊承載，確保光源正確的入射角度。 以上所述之實施例僅係為說明本發明之技術思想及特 點，其目的在使熟，習此項技藝之人士能夠瞭解本發明之内 容並據以實施，當不能以之限定本發明之專利範圍，即大 凡依本發明所揭示之精神所作之均等變化或修飾，仍應涵 蓋在本發明之專利範圍内。 .【圖式簡單說明】 第一 A圖及第一 B圖分別為一種習知之背光模組的立 體爆炸圖與剖面示意圖。 第二圖之示意圖顯示本發明一實施例之條型光源之固 定結構。 第三圖之示意圖顯示根據本發明另一實施例之L型光 源之固定結構。1327.667. VENTURE DESCRIPTION OF THE INVENTION: Technical Field of the Invention The present invention relates to a backlight module, particularly a backlight module for an LED light source. [Prior Art] ί With the rapid advancement of LCD display technology, and due to liquid crystal display, the display has the advantages of lightness, power saving, no radiation, and a large number of applications for Personal Digital Assistant (PDA). , notebook computers, desktop computers, digital cameras, video cameras, mobile phones and other products. Since the liquid crystal display is a non-self-illuminating display device, it is required to have a function of illuminating display by means of a backlight module. The Back Lighting Module of the conventional liquid crystal display mostly uses a Cold Cathode Fluorescent Lamp (CCFL) as a light source, but the Light Emitting Diode (LED) can increase its color saturation. In view of this, the backlight module using the first LED (LED) as the light source is becoming more and more popular. The first A picture and the first B picture are respectively a three-dimensional exploded view and a cross-sectional view of a conventional backlight module. As shown in FIG. 1A and FIG. B, the 1327667 backlight module 1 includes a plastic frame 10, a strip LED light source 11, a light guide plate 12, and a reflecting sheet 13. The plastic frame 1 includes a base 100, a bearing base 101 and a side wall 102. The side wall 102 is disposed on the base 1 and surrounds the outer edge of the base 100 to define an accommodation chamber. The carrier 101 is along the side wall. The inner side of the 102 is disposed on the base 1 ;; the carrier ι 1 corresponds to the light source 'for carrying the strip type LED light source 11 , and the carrier 101 is provided with at least one cubic shaped recessed LED space, each of which The opening of the cavity is oriented toward the light-incident surface of the light guide plate and the cavity to accommodate the LED 112, and the LED U2 light source can enter the light-incident surface of the light guide plate 12; the light guide plate 12 is placed on the bottom plate of the plastic frame 10. 1 〇〇. The reflective sheet 13 is disposed between the light guide plate 12 and the bottom plate 100 of the plastic frame; the strip LED light source 11 carries at least one LED 112 on the circuit substrate in, and the strip LED light source 11 is placed on the light incident side of the light guide plate and carried The seat is fixed on the first side of the seat and is fixed on the double-sided adhesive tape 121 on the light-rubber substrate of the light guide plate 12. This type of LED light source provides backlighting in the side light mode and its fixing method is fixed on the side of the light guide plate 12 by double-sided tape sticking to the glue. It is suspected of falling off during the reliability test. Therefore, in the production process If there is a bad attachment, it will not be easy to repair, and i will add material cost. In addition, as the panel size becomes larger and larger, the strip type LED 'light green is easy to have insufficient brightness. In addition to the shortcomings of the above conventional backlight module, it is necessary to provide a backlight 1327667. * * , the module to achieve high brightness requirements, and effectively fix the light source. SUMMARY OF THE INVENTION One object of the present invention is to provide a fixed structure of a light source for fixing a strip-type light source to a frame. A Another object of the present invention is to provide a structure of an L-type light source. By means of the L-type light source, sufficient light source is provided to meet the requirements of the current high-intensity liquid crystal display, and the L-type light source is effectively fixed in the X and Y-axis directions by the fixed structure of the L-type light source. It is to provide a backlight module of an L-type light source. Through the structural design of the backlight module, the L-type light source is fixed in all three directions of X, Y, and Z φ axes, and sufficient light source is provided to meet the requirements of the current high-brightness liquid crystal display. In accordance with the above objects, the present invention provides a fixed structure of a strip light source. Wherein, the strip light source is adhered to the circuit substrate by at least one LED. The frame includes a side wall, a bezel, and a plurality of bumps. When the strip light source is embedded in the frame, the circuit substrate is sandwiched by the bumps and the side walls to fix the X and Y axis directions of the strip light source. The invention further proposes a fixed structure of an L-type light source. A plurality of bumps of a L plastic light source 'frame glue are disposed on the sides of the frame corresponding to the type light source. When the L type light source is embedded in the frame, the bump section of the circuit substrate is sandwiched by the plurality of bumps and the side wall of the frame Set and fixed. According to a preferred embodiment of the present invention, the backlight module includes a backplane including a bottom plate and a first sidewall, the first sidewall surrounding the outer edge of the bottom plate to define an accommodation chamber; the frame is placed The accommodating chamber of the backboard includes a frame, a second sidewall and a plurality of bumps, the frame has a lower surface and an upper surface, and the second sidewall is disposed on the lower surface of the frame and surrounds the outer edge of the frame, and the plurality of convexities The block is disposed on the lower surface of the frame, perpendicular to the lower surface of the frame and parallel to the second side wall; the light guide plate is disposed on the bottom plate of the back plate; a light source is disposed on the incident surface side of the light guide plate, and is located at the frame Between the two side walls and the plurality of bumps, the X and γ axis directions of the light source are fixed. When the frame and the back plate are assembled, the frame and the back plate are stacked to fix the Z-axis direction of the light source. [Embodiment] A detailed description of some embodiments of the present invention is as follows, however, the present invention can be widely applied to other embodiments in addition to the detailed description. That is, the scope of the invention is not limited by the embodiments that have been proposed. When the elements or structures in the drawings of the present invention are described, they should not be construed as limiting, that is, the following description does not particularly emphasize the limitation of the number of the present invention. The scope of application can be pushed to the structure of a plurality of structures. The perspective view of the first figure shows the fixing method and structure of the light source of the embodiment of the present invention. As shown in the second figure, the frame 21 includes a side wall 211, and a rim 213 and a plurality of bumps 215. The side wall 211 is disposed on the frame 213 and surrounds the outer edge of the frame 213; the plurality of protrusions 215 are disposed on the upper surface 'on one side of the frame 213 and are parallel to the side wall 211. The strip light source 20 includes a circuit board 201 and at least one LED 203. The LED 203 is adhered to the circuit board 201 by a surface mount technology (SMT). In this embodiment, only the LED light source is taken as an example, but this is not Other sources such as cold cathode lamp sources can also be used. When the strip light source 2 is inserted into the frame 21, the circuit substrate 201 is placed between the bump 215 and the side wall 211 to be fixed to effectively fix the direction of the light source and the axis. • A perspective view of the third diagram shows a fixed structure of an L-type light source according to another embodiment of the present invention. An L-type light source is used to increase the luminance of the liquid crystal display panel. In this embodiment, only the LED light source is used as an example, but not limited thereto. Other light sources, such as a cold cathode lamp source, may be applied. Corresponding L-shaped 11 1327667, . . . The frame frame 311 of the light source 30 is provided with a plurality of bumps 315 which are perpendicular to the upper surface of the frame 311 and parallel to the L-shaped sides of the side wall 312 (corresponding to L Type light source). Therefore, the L-shaped light source 30 is embedded in the frame 31, and the L-shaped light source 30 is received between the side wall 312 of the frame 31 and the plurality of bumps 315 to effectively fix the light source. The exploded view of the fourth diagram shows the exploded structure of the backlight #module in accordance with a preferred embodiment of the present invention. The backlight module includes a back plate 40, a frame 41, an L-shaped light source 42, a light guide plate 43, and a reflection sheet (not shown). It is an inverted decomposition structure (upside down) for the purpose of making the structure of the frame 41 clear. The present invention shows a partial exploded structure and a group structure of the backlight module of the fourth figure. The light source of this embodiment is an L-shaped light source _ as an example (but not limited thereto). As shown in the fifth and sixth figures, the backlight module 4 includes a back plate 40, a frame 41, an L-type light source 42, a light guide plate 43, and a reflection sheet (not shown). The material of the back plate 40 can be, for example, aluminum, including a bottom plate 401 and a first side wall 402. The first side wall 402 surrounds the outer edge of the bottom plate 401 to define an accommodating chamber for accommodating the reflective sheet and embedding the L-shaped light source 42. The frame 41 and the light guide plate 43. The material of the frame 41 can be, for example, a plastic material. The frame 41 includes a second side wall 411, a third side wall 412, a frame 413, 12 1327667, a *1 · I ' and a plurality of bumps 415. The frame 413 has a lower surface and an upper surface. The second side wall 411 is disposed on the lower surface of the frame 413 and surrounds the outer edge of the frame 413. The plurality of protrusions 415 are disposed on the lower surface of the frame 413 and perpendicular to the lower surface of the frame. Parallel to the L-shaped side walls of the second side wall 411. The third side wall 412 is disposed on the frame 413 and surrounds the outer edge of the frame 413. The upper surface of the frame 413 is used for placing the liquid crystal display panel. The light guide plate 43 is disposed on the bottom plate 401 of the back plate 40. The reflection sheet (not shown) is disposed between the light guide plate 43 and the bottom plate 401 of the back plate 40. The L-type light source is a light source as shown in the third figure. In this embodiment, only the LED light source is taken as an example, but not limited thereto, and other light sources, such as a cold cathode lamp source, may also be applied. Light is incident from one of the long and a short (L-shaped) sides of the light guide plate 43 to increase the brightness of the liquid crystal display panel. When the L-shaped light source 42 is embedded in the frame 41, the bump segments of the circuit substrate 421 are fixed by the bumps 415 and the second sidewalls 411, so that the circuit substrate 421 is received between the plurality of bumps 415 and the second sidewall 411. The light source is fixed to enable the LED 423 light to be stably introduced from the light incident surface of the light guide plate 43. Then, the frame glue 41 and the back plate 40 are assembled, and the frame 41 and the back plate 40 are stacked up and down to fix the Z-axis direction of the light source to avoid displacement in the Z-axis direction, as shown in the sixth figure. Further, the contact surface between the aluminum base plate 401 and the L-type light source 42 is a heat radiating portion for lowering the temperature of the L-type light source. 1327667 The above light source is not limited to L-type light source or strip light source. When the size of the liquid crystal display panel becomes large and the light source is insufficient, the light source can be amplified to a three-sided light source or a four-sided light source. Any of the side-light sources can be fixed in the X, Y, and Z directions by the embedding method of the present invention. In this way, the light source can obtain excellent protection in the three directions of X, γ, and z, and can also strengthen the fixing of the light source to improve the mechanical impact bearing and ensure the correct incident angle of the light source. The embodiments described above are merely illustrative of the technical idea and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the patents of the present invention. </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; [Simplified Schematic Description] The first A picture and the first B picture are respectively a vertical exploded view and a cross-sectional view of a conventional backlight module. The schematic view of the second figure shows the fixed structure of the strip type light source according to an embodiment of the present invention. The schematic view of the third diagram shows a fixed structure of an L-type light source according to another embodiment of the present invention.