1355537 九、發明說明：1355537 IX. Description of invention:
V 【發明所屬之技術領域】 本發明係關於一種背光模組，尤指一種結合背板與反射 罩的背光模組。 【先前技術】 由於液晶本身並不會發光，因此背光模組可謂為液晶 • 顯示Giquid crystal display, LCD)面板的關鍵零組件，其主 要功能便在供應亮度充分及分佈均勻的光源，以使LCD面 板能夠正常顯示影像。而隨著LCD面板已廣泛應用於眾多 具成長潛力的電子產品，如監視器（monitor)、筆記型電腦、 數位相機、投影機等等，背光模組及其相關零組件的需求 也持續成長中。 一般而言’背光模組可分為直下式(direct-type)與侧光式 (edge-type)兩種設計，其中直下式設計係將背光源，例如 螢光燈管設置於背光模組的正下方，並可使用兩支以上的 燈管來增加光源強度，因此適用於較高亮度需求或較大尺 寸的顯示面板，例如LCD監視器或LCD電視。此外，由 於側光式背光模組係將光源產生器設於顯示面板的側邊， 存利用導光板(light guide plate, LGP)將光源產生器之光線 均勻導入顯示面板中，因此可縮小液晶顯示器之體積與製 造成本，而應用於小型之電器產品。 5 1355537 請參考第1圖，第1圖為一習知側光式背光模組l〇之 ·. 示意圖。如第1圖所示，習知側光式背光模組1〇係設於一 液晶顯示面板12的下方，主要包含有一導光板14設於液 晶顯示面板12下方、一光源產生器（light source generator) 16設於導光板14之一側、至少一光學膜片24設置於導光 板14之出光面、一反射罩（lamp reflector) 18設於光源產生 器16之外側、以及一反射片（reflecting sheet) 20設於導光 • 板14下方並固定於一背板22上。 其中，光源產生器16係用來提供一光源至液晶顯示面 板12，反射罩18及反射片20則係用於將光源產生器16 所產生的光線反射至導光板14中以增加光的使用率，以進 而提供一較佳之亮度輸出。一般而言，光學膜片.24係由至 少一稜鏡片（prism sheet)、擴散片（diffusing sheet)等光學組 φ 件所構成’導光板Η係用來將光源產生器16產生之該光 源散射（scatter)至擴散片’而擴散片可將由導光板14反 射出之光線進一步散射，以提供液晶顯示面板12較均勻分 散之光線。此外’稜鏡片通常係設置於擴散片上方，以進 步修正照光強度的差異，使液晶顯示面板1 2接收到的光 線月有一較咼之輝度。如第丨圖所示，背光模組10另具有 一框架（bezel)28與一外框(frame) 26，用來固定光源產生器 16、導光板14、光學膜片24、以及液晶顯示面板12。 3然而’習知之背域㈣包含有反射罩18、反射片20、 者板22等各式組件，除了會增加組裝製程的複雜产，亦會 同時增加背域組的製作成本。因此，如何有效節省此方 面的成本即為現今一重要課題。 【發明内容] 因此本發明之主要目的在於提供一種結合背板與反射 罩的背光模組，以改善習知背光模組因需額外設置反射罩 而導致成本的增加。 根據本發明之申請專利範圍，係揭露一種側光式背光模 組’包含有-導光板，該導光板具有—人光面及—出光面； -光源產生U近該導光板之該人光面；。背板，位於 該導光板底部，且該背板具有—用來承載該導光板之承載 4，以及至少一用以容納該光源產生器之第一容置空間. 以及-反射片’設置於該背板之該承載部與該第一容置空 間表面。上述之背光模組更可包含至卜光學臈片，設2 於該導光板之該出光面上。 由於本發明係將習知背光模組之背板與反射罩結合而 形成-背板，因此可降低習知製作背紐組時需特別 反射罩而另設計模具所增加的成本。此外，本發明可同時 於反射背板的表面貼附一反射獏片，用來反射光源產生器 1355537 所產生的光源。換句話說，本發明之具有反射膜片之背板 . 除了可容納光源產生器，又可同時反射光源至導光板與設 置於其上的光學膜片。 *·. , 【實施方式】 請參照第2圖與第3圖，第2圖與第3圖為本發明之側 光式背光模組示意圖。如第2圖所示，本發明之背光模組 φ 40係設置於一液晶顯示面板42下方，主要包含一具有一 入光面66以及一出光面68之導光板46、一光源產生器.44 鄰近導光板46之入光脉66-、一背板50配置於導光板46 底部，其具有一用來承載導光板46的承載部70以及一用 來容納光源產生器44的第一容置空間58、以及一反射片 52設置於背板50的承載部70與第一容置空間58表面。 上述之背光模組更可包含至少一光學膜片48設置於導光 ▲ 板46之出光面68上。 其中，光源產生器44係由冷陰極螢光燈管（CCFL)、外 部電極螢光燈管（EEFL)或發光二極體(LED)等發光元件所 組成，用來提供一光源至液晶顯示面板42。光學膜片48 係由至少一稜鏡片、擴散片等光學組件所構成，導光板46 係用來將光源產生器44產生之光源均勻散射至擴散片等 之光學膜片48，然後再藉由光學膜片48將由導光板46所 反射出之光線進一步散射並導入液晶顯示面板42,以提供 8V [Technical Field] The present invention relates to a backlight module, and more particularly to a backlight module incorporating a back plate and a reflector. [Prior Art] Since the liquid crystal itself does not emit light, the backlight module can be described as a key component of the liquid crystal display panel, and its main function is to supply a light source with sufficient brightness and uniform distribution to make the LCD The panel can display images properly. As LCD panels have been widely used in many electronic products with growth potential, such as monitors, notebook computers, digital cameras, projectors, etc., the demand for backlight modules and related components continues to grow. . Generally speaking, the backlight module can be divided into a direct-type and an edge-type design, wherein the direct-type design is to set a backlight, such as a fluorescent tube, to the backlight module. Just below, and more than two lamps can be used to increase the intensity of the light source, so it is suitable for higher brightness requirements or larger display panels, such as LCD monitors or LCD TVs. In addition, since the edge light type backlight module is disposed on the side of the display panel, the light guide plate (LGP) is used to uniformly introduce the light of the light source generator into the display panel, thereby reducing the liquid crystal display. The volume and manufacturing cost are applied to small electrical products. 5 1355537 Please refer to FIG. 1 , which is a schematic diagram of a conventional side-lit backlight module. As shown in FIG. 1 , the conventional edge-lit backlight module 1 is disposed under a liquid crystal display panel 12 , and mainly includes a light guide plate 14 disposed under the liquid crystal display panel 12 and a light source generator. 16 is disposed on one side of the light guide plate 14, at least one optical film 24 is disposed on the light emitting surface of the light guide plate 14, a light reflector 18 is disposed on the outer side of the light source generator 16, and a reflecting sheet 20 is disposed under the light guide plate 14 and fixed to a back plate 22. The light source generator 16 is used to provide a light source to the liquid crystal display panel 12. The reflective cover 18 and the reflective sheet 20 are used to reflect the light generated by the light source generator 16 into the light guide plate 14 to increase the light usage rate. To provide a better brightness output. In general, the optical film 24 is composed of at least one optical sheet such as a prism sheet or a diffusing sheet. The light guide plate is used to scatter the light source generated by the light source generator 16. The scatter is to the diffusion sheet' and the diffusion sheet further scatters the light reflected by the light guide plate 14 to provide a relatively uniform dispersion of the liquid crystal display panel 12. In addition, the cymbal is usually disposed above the diffusion sheet to further correct the difference in illumination intensity, so that the light received by the liquid crystal display panel 12 has a brighter brightness. As shown in the figure, the backlight module 10 further has a bezel 28 and a frame 26 for fixing the light source generator 16, the light guide plate 14, the optical film 24, and the liquid crystal display panel 12. . 3 However, the conventional back domain (4) includes various components such as the reflector 18, the reflection sheet 20, and the panel 22, which not only increases the complicated production process of the assembly process, but also increases the manufacturing cost of the back domain group. Therefore, how to effectively save the cost in this aspect is an important issue today. SUMMARY OF THE INVENTION Accordingly, it is a primary object of the present invention to provide a backlight module incorporating a back panel and a reflector to improve the cost of the conventional backlight module due to the need to additionally provide a reflector. According to the patent application scope of the present invention, an edge-lit backlight module includes a light guide plate having a human light surface and a light exit surface, and a light source generates a light surface of the light guide plate. ; a backing plate is disposed at the bottom of the light guide plate, and the backboard has a carrier 4 for carrying the light guide plate, and at least one first receiving space for accommodating the light source generator. And the reflective sheet is disposed on the backplane The bearing portion of the backboard and the first receiving space surface. The backlight module may further include an optical optical film disposed on the light emitting surface of the light guide plate. Since the present invention combines the back panel of the conventional backlight module with the reflector to form a backplane, the cost of the conventional reflector can be reduced and the cost of the mold can be reduced. In addition, the present invention can simultaneously attach a reflective cymbal to the surface of the reflective back plate for reflecting the light source generated by the light source generator 1355537. In other words, the back sheet of the present invention having a reflective film. In addition to accommodating the light source generator, the light source can be simultaneously reflected to the light guide plate and the optical film disposed thereon. *·. , [Embodiment] Please refer to Figures 2 and 3, and Figures 2 and 3 are schematic views of the edge-lit backlight module of the present invention. As shown in FIG. 2, the backlight module φ 40 of the present invention is disposed under a liquid crystal display panel 42 and mainly includes a light guide plate 46 having a light incident surface 66 and a light exit surface 68, and a light source generator. An optical fiber 66 adjacent to the light guide plate 46 and a back plate 50 are disposed at the bottom of the light guide plate 46, and have a bearing portion 70 for carrying the light guide plate 46 and a first receiving space for accommodating the light source generator 44. 58. A reflective sheet 52 is disposed on the surface of the carrying portion 70 of the backing plate 50 and the first receiving space 58. The backlight module may further include at least one optical film 48 disposed on the light exit surface 68 of the light guide plate 46. The light source generator 44 is composed of a light-emitting element such as a cold cathode fluorescent lamp (CCFL), an external electrode fluorescent lamp (EEFL) or a light-emitting diode (LED), and is used to provide a light source to the liquid crystal display panel. 42. The optical film 48 is composed of at least one optical component such as a cymbal plate and a diffusion plate. The light guide plate 46 is used to uniformly scatter the light source generated by the light source generator 44 to the optical film 48 of the diffusion sheet or the like, and then optically. The diaphragm 48 further scatters the light reflected by the light guide plate 46 and introduces it into the liquid crystal display panel 42 to provide 8