M259185 八、新型說明： 【新型所屬之技術領域】 本創作係有關一種背光模組，特別指一種背光模組乃 應用發光二極體為光源，以設置於平面顯示器，如液晶顯 示器，之背面以作為其背光源。 【先前技術】 由於液晶顯示器（Liquid crystal display，LCD)具 有低消耗功率、薄型輕巧以及低電壓驅動等特徵，已成為 明被廣泛使用的一種平面顯示器。然而由於液晶層本身無 法發光，故均需要額外的光源模組以提供液晶顯示器光 線，其中光源模組設置於其背面者乃稱為背光模組。 再者，由於發光二極體（Light emitting diode，LED) 為一低耗電而高亮度的發光元件，具有光源穩定，使用壽 命長等優點，而特別適合於液晶顯示器光源中。 請參閱第一圖，為一種先前技術具發光二極體光源之 背光模組的側面剖視圖。該背光模組9乃包括有一電路板 9 1 ;該電路板9 1設有多個發光二極體9 2，該發光二 極體9 2的邊緣乃設有一第一反射部9 3，該第一反射部 9 3具有橢圓的反射壁將光線垂直彎折至一混光板9 4， 該混光板9 4乃連接於該反射部9 3，將反射後的各種顏 色光線混合後，引導至一第二反射部9 5，該第二反射部 9 5將混合後的光線彎折1 8 0度至一導光板（Light guide plate，LGP) 9 7，並經由一設於該導光板9 7底 M259185 面之反射膜（reflective foil) 9 6向出光面均勻的發散 至液晶顯不器8。 請參閱第二圖，為上述之背光模組與液晶顯示器之組 合立體圖，由於該背光模組設置多顆不同顏色的發光二極 體而需要設置混光板，並且採用混光板與導光板堆疊的設 計方式。然而由於電子產品厚度要求愈來愈薄，上述的背 光模組因為具有兩個導光板，其厚度顯然增加整體電子產 品的厚度，已明顯不符合現有的發展需求。 另外，先前技術較早有將發光二極體直揍設置於導光# 板之侧邊’其中電路板乃垂直於液晶顯示器，然而由於發 光極體运產生熱置，此種設計方式造成_種不利於孰量 散發的環境。 … 是以，由上可知，上述習知的背光模組，在實際使用 上’顯^具有不便與缺失存在，而可待加以改善者。 究並：二本創作人有感上述缺失之可改善，乃特潛心研M259185 8. Description of the new type: [Technical field to which the new type belongs] This creation relates to a backlight module, especially a backlight module that uses a light-emitting diode as a light source to be installed on a flat display, such as a liquid crystal display. As its backlight. [Previous Technology] Because liquid crystal displays (LCDs) have the characteristics of low power consumption, thinness, light weight, and low voltage driving, they have become a type of flat panel display that is widely used. However, since the liquid crystal layer cannot emit light by itself, an additional light source module is required to provide liquid crystal display light. The light source module disposed on its back is called a backlight module. Furthermore, since a light emitting diode (LED) is a light-emitting element with low power consumption and high brightness, it has the advantages of stable light source and long life, and is particularly suitable for liquid crystal display light sources. Please refer to the first figure, which is a side cross-sectional view of a backlight module with a light emitting diode light source of the prior art. The backlight module 9 includes a circuit board 9 1. The circuit board 91 is provided with a plurality of light-emitting diodes 92. An edge of the light-emitting diode 92 is provided with a first reflecting portion 9 3. A reflecting portion 9 3 has an elliptical reflecting wall to bend the light vertically to a light mixing plate 9 4. The light mixing plate 94 is connected to the reflecting portion 9 3 and mixes the reflected light of various colors and guides it to a first Two reflecting portions 95, which bend the mixed light 180 degrees to a light guide plate (LGP) 9 7 and pass through a light guide plate 9 7 at the bottom M259185 The reflective foil 9 6 on the surface is uniformly diffused toward the light emitting surface to the liquid crystal display 8. Please refer to the second figure, which is a combined perspective view of the above-mentioned backlight module and liquid crystal display. Since the backlight module is provided with a plurality of light emitting diodes of different colors, a light mixing plate is required, and a design in which the light mixing plate and the light guide plate are stacked is used. the way. However, as the thickness requirements of electronic products are getting thinner and thinner, since the above-mentioned backlight module has two light guide plates, its thickness obviously increases the thickness of the overall electronic product, which obviously does not meet the existing development requirements. In addition, in the prior art, the light-emitting diodes were directly arranged on the side of the light guide plate. The circuit board was perpendicular to the liquid crystal display. However, due to the heat-dissipation of the light-emitting body, this design method caused _ species It is not conducive to the environment of mass emission. … Therefore, it can be seen from the above that the above-mentioned conventional backlight module has inconveniences and defects in practical use, and needs to be improved. Research: The two authors felt that the above-mentioned shortcomings could be improved.
予理之運用’終於提出—種設計合理且有效改善 上这缺失之本創作。 【新型内容】 、彳作之主要目的係提供一種背光模組，能降低整體 度=減少^件’以符合電子產品發展需求並降低成本。 ’、、、達上述之目# ’本創作之—種背光模纪，乃 於 平面顯示器之背面，包括一 、 哭 ^ 匕枯包路板平仃於該平面顯示 又有複數個發光二極體；一反射部，具有一反射壁 6 M259185 乃由該發光二極體的邊緣彎曲地延伸至該發光二極體上 方、以及一固持壁乃平行該反射壁，且形成一出口方向平 行於該電路板之開槽；及一導光板，平行該電路板，其一 端乃固定於該反射部的該開槽内，且具有一出光面及一反 射面，該出光面鄰接於該平面顯示器。 茲配合圖式將本創作之較佳實施例詳細說明如下，但 是此等說明僅係用來說明本創作，而非對本創作的權利範 圍作任何的限制。 【實施方式】 請參閱第三及第四圖，為本創作之背光模組之侧面剖 視圖、及背光模組與平面顯示器的立體組合圖。本創作之 背光模組1乃設置於一平面顯示器8之背面，該背光模組 1包括一電路板1 2、複數個發光二極體1 4、一反射部 16、及一導光板18。 該電路板1 2乃平行於該平面顯示器8，其可以是硬 板或是軟板。該複數個發光二極體1 4乃設置於該電路板 1 2上。該電路板1 2乃是設於整體顯示裝置的外侧，此 種設計有利於其熱量向外發散，而形成一種良好之散熱環 境。 該發光二極體1 4較佳乃為表面黏著技術（surface mount technology，SMT)形式者而直接焊接於該電路板1 2，其整體體積較小，較不耗費空間。在此實施例中，該 發光二極體1 4較佳乃為白光發光二極體，或者也可以是 M259185 混光發光二極體。其中發光二極體的數目會因液晶顯示器 的照度（Illumination)的需求不同而有所變化。 該反射部1 6乃罩設於該發光二極體1 4的上方，用 以將光線垂直反射以進入該導光板2 8，該反射部丄6具 有一反射壁162以及一固持壁164。談反射壁1 6 2 的剖面乃略呈橢圓，並且由該發光二極體2 4邊緣彎曲地 延伸至該發光二極體1 4上方；該固持壁1 6 4乃平行該 反射壁162，且形成一出口方向平行於該電路板1 2之 開槽1 6 6。其中該反射部1 6的反射壁1 6 2乃反射良_ 好之材料製成，或者其内侧乃塗佈有可增強反射之材料。 其中該電路板1 2進一步可以設置一燈座1 3以供該 發光二極體1 4設置於其上，該反射部i 6乃可以是固定 於該電路板1 2的燈座1 3上。或者，該反射部χ 6也可 以是直接固定在該電路板1 2上，例如以焊接或螺鎖的方 式。 該導光板1 8乃平行於該電路板12,其一端乃固定❿ 於該反射部16的該開槽166内，且具有一反射面工8 2及一出光面184，該出光面184乃鄰接於該平面顯 不器8。其中該導光板1 8之材質乃可以是壓克力（聚甲 基丙烯酸曱酯，PMMA)或是光學塑料（Plastic Divisi〇n， 俗稱PC料或塑膠料），於其中包含有50%〜80%的二氧化 鈦（Τι02)擴散粒，其作用在於使光線在穿透該導光板丄8 時更被均勻地散射。 請參閱第五圖，為本創作之背光模組第二實施例的侧 M259185 面剖視圖。其中該發光二極體1 4可以是設置可混成白光 之紅、綠、藍光發光二極體，為著使其均勻混合，其中該 反射部16的反射壁162’進一步向前延伸一預定長度 蓋住該導光板1 8的部份上方，使光線先在該導光板工8 的前段内混合，再由該導光板1 8後段均勻發出。 本創作之背光模組1，可以進一步包括有一第一擴散 片（diffuser sheet) 1 8 5位於該導光板1 8之出光面上 方；一菱鏡片（Prism sheet) 8 6位於該第一擴散片工 8 5上方；及一第二擴散片1 8 7位於該菱鏡片！ 8 6上 方。該導光板18的側邊可進—步設置—反。 〔本創狀創作特徵及特點〕 口此藉本創作所能產生之特點及功能經整理如后： 本創作之月先模組降低整體厚度並減少元件數，能符 5電子產品發展需求並降低產品的成本。 綜上所述，太心 出申請。惟以^ !實已符合㈣專利之要件，依法提 自 、 厅揭路者，僅為本創作較佳實施例而已， 圍所之權利範圍’因此依本創作申請範 德便。 、项審，並盼早日准予專利以勵創作，實感 【圖式簡單說明】 第一圖：係先前抽 付具發光二極體光源之背光模組的侧面 剖視圖。 ® M259185 第圖·係為先前技術之背光模組舆液晶顯示器之組合立 體圖。 圖.係本創作之背光模組之側面剖視圖。 第=:係本創作背光麵與平㈣㈣的立體組合圖。 :.係本創作背光模組第二實施例的 1主要元件符號說明】 〔習知〕 液晶顯示器8 背光模組9 電路板 9 1 第一反射部9 3 第二反射部9 5 導光板 9 7 〔本創作〕 背光模組 1、1， 電路板 12 發光二極體14 反射部 16 反射壁 162、 開槽 16 6 導光板 18 反射面 1 8 2第一擴散片1 8 5 第二擴散片1 8 7 發光二極體9 2 混光板 9 4 反射膜 9 6 燈座 6 2， 固持壁 丄6 4 出光面 184 菱鏡片 186 10The use of Yuli ’has finally been proposed—a rational design and effective improvement on this missing original creation. [New content] The main purpose of the game is to provide a backlight module, which can reduce the overall level = reduce ^ pieces' to meet the development needs of electronic products and reduce costs. '、、、 达海 外 之 目 #' This creation—a kind of backlight mold, is on the back of the flat display, including one, crying ^ dagger package road board flat on the flat display and there are multiple light-emitting diodes ; A reflecting portion having a reflecting wall 6 M259185 is curvedly extended from the edge of the light emitting diode to above the light emitting diode, and a holding wall is parallel to the reflecting wall and forms an exit direction parallel to the circuit A slot of the plate; and a light guide plate parallel to the circuit board, one end of which is fixed in the slot of the reflecting portion, and has a light emitting surface and a reflecting surface, and the light emitting surface is adjacent to the flat display. The preferred embodiments of this creation are described in detail below with reference to the drawings, but these descriptions are only used to describe this creation, not to limit any scope of rights of this creation. [Embodiment] Please refer to the third and fourth figures, which are a side sectional view of the backlight module and a three-dimensional combined view of the backlight module and the flat display. The backlight module 1 of the present invention is disposed on the back of a flat display 8. The backlight module 1 includes a circuit board 12, a plurality of light-emitting diodes 14, a reflective portion 16, and a light guide plate 18. The circuit board 12 is parallel to the flat display 8 and may be a hard board or a soft board. The plurality of light emitting diodes 14 are disposed on the circuit board 12. The circuit board 12 is provided on the outer side of the overall display device. This design facilitates the dissipation of heat to the outside and forms a good heat dissipation environment. The light-emitting diode 1 4 is preferably a surface mount technology (SMT) type and is directly soldered to the circuit board 12. The overall volume is small and does not consume space. In this embodiment, the light-emitting diodes 14 are preferably white light-emitting diodes, or may be M259185 mixed-light-emitting diodes. The number of light-emitting diodes varies according to the requirements of the illumination of the liquid crystal display (Illumination). The reflecting portion 16 is disposed above the light emitting diode 14 to vertically reflect light to enter the light guide plate 28. The reflecting portion 丄 6 has a reflecting wall 162 and a retaining wall 164. The cross section of the reflection wall 1 6 2 is slightly elliptical, and extends from the edge of the light emitting diode 24 to the light emitting diode 14 in a curved manner; the holding wall 1 6 4 is parallel to the reflection wall 162, and A slot 1 6 6 with an exit direction parallel to the circuit board 12 is formed. The reflection wall 16 of the reflection portion 16 is made of a good reflection material, or the inside is coated with a material that can enhance reflection. The circuit board 12 can further be provided with a lamp holder 13 for the light emitting diode 14 to be disposed thereon, and the reflection part i 6 can be fixed on the lamp holder 13 of the circuit board 12. Alternatively, the reflecting part χ 6 may be directly fixed on the circuit board 12, for example, by soldering or screwing. The light guide plate 18 is parallel to the circuit board 12, and one end of the light guide plate 18 is fixed in the slot 166 of the reflection portion 16 and has a reflecting surface 8 2 and a light emitting surface 184. The light emitting surface 184 is adjacent to each other.于 该 平面 显 不 器 8。 In the plane display 8. The material of the light guide plate 18 can be acrylic (polymethyl methacrylate, PMMA) or optical plastic (Plastic Division, commonly known as PC material or plastic material), which contains 50% to 80%. % Titanium dioxide (Ti02) diffusion particles, whose role is to make the light more uniformly scattered when it penetrates the light guide plate 丄 8. Please refer to the fifth figure, which is a side cross-sectional view of the second embodiment of the backlight module of this creation. Wherein, the light-emitting diodes 14 may be provided with red, green, and blue light-emitting diodes that can be mixed into white light. In order to make them uniformly mixed, the reflection wall 162 ′ of the reflection portion 16 further extends a predetermined length of the cover forward. The light guide plate 18 is held above the part, so that light is mixed in the front section of the light guide plate 8 first, and then emitted uniformly from the rear section of the light guide plate 18. The backlight module 1 of this creation may further include a first diffuser sheet 1 8 5 above the light exit surface of the light guide plate 18; a prism sheet 8 6 is located on the first diffuser sheet Above 8 5; and a second diffuser 1 8 7 is located in the diamond lens! 8 6 above. The side of the light guide plate 18 can be set further-reversed. [Features and characteristics of the original creation] The features and functions that can be generated by this creation can be summarized as follows: The first module of this creation reduces the overall thickness and reduces the number of components, which can meet the development needs of 5 electronic products and reduce The cost of the product. In summary, the application is too heartfelt. However, the fact that ^! Has already met the requirements of the patent, and that the road is disclosed in accordance with the law is only a preferred embodiment of this creation, and the scope of the scope of rights' is therefore based on this creation application. The project is under review, and I look forward to granting a patent soon to encourage creativity, real sense. [Simplified illustration of the drawing] The first picture: a side cross-sectional view of a backlight module previously provided with a light emitting diode light source. ® M259185 Figure · This is a combination of the prior art backlight module and LCD display. Fig. Is a side sectional view of the backlight module of this creation. No. =: This is a three-dimensional combination of the backlight surface and the flat surface. : .Description of 1 main component symbols of the second embodiment of the backlight module of the present invention] [Knowledge] Liquid crystal display 8 Backlight module 9 Circuit board 9 1 First reflecting portion 9 3 Second reflecting portion 9 5 Light guide plate 9 7 [This creation] Backlight module 1, 1, circuit board 12 Light-emitting diode 14 Reflector 16 Reflective wall 162, Slot 16 16 Light guide plate 18 Reflective surface 1 8 2 First diffuser 1 8 5 Second diffuser 1 8 7 Light-emitting diode 9 2 Light mixing plate 9 4 Reflective film 9 6 Lamp holder 6 2 and retaining niches 6 4 Light-emitting surface 184 Diamond lens 186 10