201102711 六、發明說明： 【發明所屬之技術領域】 本發明關於一種反射片結構體，特別是關於一種背光 模組之反射片結構體及其製造方法，以及採用該反射片結 構體的背光模組。 【先前技術】 液晶顯示裝置（Liquid Crystal Display，LCD)因其具有 * 輕、薄等特性，已逐漸取代傳統的陰極射線管（Cathode Ray Tube，CRT)，且已廣泛地應用於例如個人數位助理 (Personal Digital Tube，PDA)及液晶電視等各種電子產品 的顯示裝置上。 顯示裝置一般包括一液晶顯示面板與一對該液晶顯 示面板提供平面光的背光模組。 第1圖是繪示習知一背光模組的剖面示意圖。該習知 φ 的背光模組包括一對光源110、一光學膜片單元120、 一固定框130、一反射片140、一限位框150、以及一金屬 外殼160。 一對光源110分別置於一相對側。光學膜片單元1 包括有一導光板121與一擴散片122，其位於該對光源 之間。固定框130置於該對光源的頂面。反射片14〇置於該 對光源110的底面。限位框15〇位於反射片14〇的周邊，用 以限定反射片140的位置。金屬外殼16〇則設於反射片14〇 的底面及周邊，以容置上述物件以及作為該些物件的支撐 201102711 件。一對光源110所發出的光源，經由反射片140的反射， 以及經由導光板121的導光及擴散片122的擴散，而對液晶 顯不面板（未圖不）提供--ip·面光。 然而’就反射片相關連的結構體而言，習知的背光模 組100係包括反射片140、限位框150以及金屬外殼160。其 不但組件煩多，組裝麻煩費時，而且其金屬外殼16 〇會增 加其體積及重量，並提高整體背光模組的製作成本。 【發明内容】 針對上述習知背光模組之反射片相關連結構的缺 點，本發明之一目的在於提供一種背光模組之反射片結構 體，其結構簡捷且輕、薄。 本發明之另一目的在於提供一種背光模組之反射片 結構體的製造方法’其以極為簡便的方式製得該反射片結 稱體。 ♦々本發明之再-目的在於提供—種背光模組之結構其 採用輕、薄的反射片結構體，而使得整體背光模組的組; 牛 簡化及組裝容易。 、 “根據上述之目的，本發明之一態樣是在提供—種、 反射片結構體，其包括—_背板與—黏合於該; W板之-面的反射片。其構造簡捷，且體積小、重量聋 背光模組之結構體的二=驟種 201102711 備^反射片，·備具塑膠背材；將反射片以黏合膠黏合於塑 膠背板的一面，而形成反射片及塑膠背板結合為一體的一 反射片結構體；將該反射片結構體擠壓成型。其以極為簡 便的方式製得該反射片結構體。 根據上述之目的，本發明之一態樣是在提供一種背光 模組之結構，包括：一對光源，分別置於一相對側；一光 學膜片單元，包括有一導光板與一擴散片，其位於該對光 源之間；一固定框，位於該對光源的頂面；以及一反射片 結構體，位於該對光源的底面及周邊，該反射片結構體包 括有一塑膠背板與一黏合於該塑膠背板靠鄰近該對光源 的一面的反射片。由於背光模組採用了構造簡捷的反射片 結構體，而使得整體背光模組的組件簡化及組裝容易，而 且體積小、重量輕。 根據本發明的一實施例，其中塑膠背板的材質係選自 於聚乙烯（PE)、聚對苯二曱酸乙二醇脂（PET)、聚丙烯（pp) 、聚苯乙烯（PS)、聚氣乙烯（PVC)其中的一種。提供了一 種軔性強且重量輕的背板。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式的實施例詳細說明當中，將可清楚的呈 現。 第2圖是繪示依照本發明一實施方式之背光模組之反 射片結構體的剖面示意圖。如該圖所示，本發明反射片結 201102711 構體200包括一塑膠背板210與一反射片220，其中反射片 220以例如黏合膠230黏合於塑膠背板210的一面。 在實施上，塑膠背板210的材質係選自於聚乙烯（pe) 、聚對苯二甲酸乙二醇脂（PET)、聚丙烯（pp)、聚苯乙稀 (PS)、聚氯乙烯（PVC)其中的一種。提供了一種軔性強且 重量輕的背板。 依照本發明一實施方式之背光模組之反射片結構體 春 200，僅以反射片220與塑膠背板210所構成，其簡化了習 知相關連構造之反射片140、定位框150以及金屬外殼160 的°又置’因而構造間捷，且體積小、重量輕。 第3圖是繪示依照本發明一實施方式之背光模組之反 射片結構體的製造方法的製造流程圖，用以說明製造反射 片結構體200的步驟’其製造步驟為：（一）.備具反射片 (S1);(二）.備具塑膠背材（S2);(三）.將反射片以黏合膠 黏合於塑膠背板的一面，而形成反射片與塑膠背板結合為 • 一體的一反射片結構體（S3);(四）·將該反射片結構體擠 壓成型（S4)，例如擠壓成门字型，以供容置背光模組的相 關物件。依照該製造方法，其可以極為簡便的方式製得反 射片結構體200。 第4圖是繪示依照本發明一實施方式之背光模組之結 構的剖面示意圖。如圖所示，本發明背光模組3〇〇包括一 對光源400、一光學膜片單元5〇〇、一固定框6〇〇、以及一 反射片結構體200。 一對光源400分別置於一相對側。光學膜片單元5〇〇 201102711 包括有一導光板5i〇與一擴散片520，其位於該對光源400 之間。固定框600置於該對光源400的頂面。反射片結構體 200置於該對光源4〇〇的底面及周邊。反射片結構體200包 括上述的塑膠背板21〇與一黏合於該塑膠背板鄰近該對光 源之一面的反射片220。一對光源400所發出的光源，經由 反射片結構體200之反射片220的反射，以及經由導光板 510的導光及擴散片520的擴散’而對液晶顯示面板（未圖 示）提供一平面光。反射片結構體2〇〇除了反射一對光源 400的光源之外，同時兼作容置上述物件以及作為該些物 件的支撐件之用。 依照本發明一實施方式之背光模組之結構，其採用了 反射片結構體200,而該反射片結構體僅以反射片22〇與塑 膠背板210所構成，其簡化了習知相關連構造之反射片14〇 、疋位框150以及金屬外殼16〇的設置，而使得整體背光模 組的組件簡化及組裝容易，而且體積小、重量輕。 雖然本發明以實施方式揭露如上，然其並非用以限定 本發明，任何熟習此技藝者，在不脫離本發明的精神和範 圍内’當可作錄的更動與潤飾，因此本發明之保護範 當視後附的申請專利範圍所界定者為準。 【圖式簡單說明】 為讓本發明之上述和其他目的、特徵、優點 能更明確易懂，賴圖式之朗如下： 賞施例 第1圖是繪示習知-背光模組的剖面示意圖。 201102711 第2圖是綠示依照本發明一實施方式之背光模組之 反射片結構體的剖面示意圖。 第3圖是繪示依照本發明一實施方式之背光模組之 反射片結構體的製造方法的製造流程圖。 第4圖疋繪示依照本發明一實施方式之背光模組之 結構的剖面示意圖。 210 塑膠背板 230 黏合膠 400 光源 510 導光板 600 固定框 【主要元件符號說明】 200 :反射片結構體 220 =反射片 300 :背光模組 500 :光學膜片單元 520 :擴散片BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflective sheet structure, and more particularly to a reflective sheet structure of a backlight module, a method of fabricating the same, and a backlight module using the same . [Prior Art] Liquid crystal display (LCD) has gradually replaced the traditional cathode ray tube (CRT) because of its light and thin characteristics, and has been widely used, for example, in personal digital assistants. (Personal Digital Tube, PDA) and display devices for various electronic products such as LCD TVs. The display device generally includes a liquid crystal display panel and a pair of backlight modules for providing planar light to the liquid crystal display panel. FIG. 1 is a cross-sectional view showing a conventional backlight module. The backlight module of the conventional φ includes a pair of light sources 110, an optical film unit 120, a fixing frame 130, a reflection sheet 140, a limiting frame 150, and a metal casing 160. A pair of light sources 110 are respectively placed on opposite sides. The optical film unit 1 includes a light guide plate 121 and a diffusion sheet 122 between the pair of light sources. A fixed frame 130 is placed on the top surface of the pair of light sources. The reflection sheet 14 is placed on the bottom surface of the pair of light sources 110. A limit frame 15 is located at the periphery of the reflection sheet 14A to define the position of the reflection sheet 140. The metal casing 16 is disposed on the bottom surface and the periphery of the reflection sheet 14A to accommodate the objects and the support for the articles 201102711. The light source emitted from the pair of light sources 110 is reflected by the reflection sheet 140, and guided by the light guide plate 121 and diffused by the diffusion sheet 122, and the liquid crystal display panel (not shown) is provided with -ip surface light. However, the conventional backlight module 100 includes a reflection sheet 140, a stopper frame 150, and a metal casing 160 in terms of a structure associated with the reflection sheet. Not only is the component cumbersome, the assembly is troublesome and time consuming, and its metal casing 16 增 increases its size and weight, and increases the manufacturing cost of the overall backlight module. SUMMARY OF THE INVENTION In view of the disadvantages of the related structure of the reflective sheet of the conventional backlight module, an object of the present invention is to provide a reflective sheet structure of a backlight module, which is simple, light, and thin. Another object of the present invention is to provide a method for fabricating a reflective sheet structure of a backlight module which produces the reflective sheet conjugate in an extremely simple manner. ♦ A further object of the present invention is to provide a structure of a backlight module which uses a light and thin reflective sheet structure to make a group of integral backlight modules; According to the above object, an aspect of the present invention is to provide a reflective sheet structure including a back sheet and a reflective sheet which is bonded to the surface of the W board. The structure is simple and simple. The structure of the small and heavy-weight backlight module is the second type of the compound of the backlight module. The film is made of plastic backing. The reflective sheet is bonded to one side of the plastic back sheet to form a reflective sheet and a plastic back. The sheet is integrated into a reflective sheet structure; the reflective sheet structure is extruded, and the reflective sheet structure is produced in an extremely simple manner. According to the above object, an aspect of the present invention provides a The structure of the backlight module comprises: a pair of light sources respectively disposed on an opposite side; an optical film unit comprising a light guide plate and a diffusion sheet located between the pair of light sources; and a fixed frame located at the pair of light sources a top surface; and a reflective sheet structure on the bottom surface and the periphery of the pair of light sources, the reflective sheet structure includes a plastic back sheet and a reflective sheet adhered to the plastic back sheet adjacent to the side of the pair of light sources. The optical module adopts a simple structure of the reflective sheet structure, which simplifies and assembles the assembly of the whole backlight module, and is small in size and light in weight. According to an embodiment of the invention, the material of the plastic back sheet is selected from the group consisting of It is one of polyethylene (PE), polyethylene terephthalate (PET), polypropylene (pp), polystyrene (PS), and polyethylene (PVC). The present invention and other technical contents, features and effects of the present invention will be apparent from the following detailed description of embodiments with reference to the drawings. FIG. A cross-sectional view of a reflective sheet structure of a backlight module according to an embodiment of the present invention. As shown in the figure, the reflective sheet junction 201102711 of the present invention includes a plastic back sheet 210 and a reflective sheet 220, wherein the reflective sheet 220 For example, the adhesive backing tape 210 is bonded to one side of the plastic back sheet 210. In practice, the material of the plastic back sheet 210 is selected from the group consisting of polyethylene (PE), polyethylene terephthalate (PET), and polypropylene ( Pp), polystyrene One of thin (PS) and polyvinyl chloride (PVC) provides a strong and lightweight back sheet. The reflective sheet structure of the backlight module according to an embodiment of the present invention is spring 200, only using a reflective sheet. The 220 and the plastic back plate 210 are formed, which simplifies the conventionally related structure of the reflection sheet 140, the positioning frame 150, and the metal casing 160. Therefore, the structure is simple, and the volume is small and the weight is light. A manufacturing flow chart of a method for manufacturing a reflective sheet structure of a backlight module according to an embodiment of the present invention is used to explain the steps of manufacturing the reflective sheet structure 200. The manufacturing steps are as follows: (1). (S1); (2). Preparing a plastic backing material (S2); (3). Bonding the reflective sheet to the side of the plastic backing sheet with a bonding adhesive, and forming a reflective sheet combined with the plastic backing sheet to form an integral reflection The sheet structure (S3); (4) The object of the backlight module is extruded (S4), for example, extruded into a gate shape for accommodating the related object of the backlight module. According to this manufacturing method, the retroreflective sheet structure 200 can be produced in an extremely simple manner. 4 is a cross-sectional view showing the structure of a backlight module in accordance with an embodiment of the present invention. As shown, the backlight module 3 of the present invention includes a pair of light sources 400, an optical film unit 5A, a fixed frame 6A, and a reflective sheet structure 200. A pair of light sources 400 are placed on opposite sides, respectively. The optical film unit 5 〇〇 201102711 includes a light guide plate 5i 〇 and a diffusion sheet 520 located between the pair of light sources 400. A fixed frame 600 is placed on the top surface of the pair of light sources 400. The reflection sheet structure 200 is placed on the bottom surface and the periphery of the pair of light sources 4A. The reflective sheet structure 200 includes the plastic back sheet 21 and the reflective sheet 220 adhered to the plastic back sheet adjacent to one of the pair of light sources. The light source emitted from the pair of light sources 400 provides a plane to the liquid crystal display panel (not shown) via reflection of the reflection sheet 220 of the reflection sheet structure 200 and diffusion through the light guide plate 510 and diffusion of the diffusion sheet 520. Light. The reflection sheet structure 2 is used for accommodating the above objects and as a support for the objects, in addition to the light source reflecting the pair of light sources 400. The structure of the backlight module according to an embodiment of the present invention uses a reflective sheet structure 200, and the reflective sheet structure is composed only of the reflective sheet 22 and the plastic back sheet 210, which simplifies the conventional related structure. The arrangement of the reflective sheet 14〇, the clamping frame 150 and the metal casing 16〇 makes the assembly of the integral backlight module simple and easy to assemble, and is small in size and light in weight. While the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and the skilled in the art can be modified and retouched in the context of the spirit and scope of the present invention. It is subject to the definition of the scope of the patent application attached. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features and advantages of the present invention clear and easy to understand, the Lai is as follows: FIG. 1 is a schematic cross-sectional view of a conventional backlight module . 201102711 FIG. 2 is a cross-sectional view showing a reflective sheet structure of a backlight module according to an embodiment of the present invention. 3 is a manufacturing flow chart showing a method of manufacturing a reflective sheet structure of a backlight module according to an embodiment of the present invention. 4 is a cross-sectional view showing the structure of a backlight module according to an embodiment of the present invention. 210 Plastic backing plate 230 Adhesive 400 Light source 510 Light guide plate 600 Fixed frame [Main component symbol description] 200: Reflective sheet structure 220 = Reflective sheet 300: Backlight module 500: Optical diaphragm unit 520: Diffusion sheet