1286249 九、發明說明： 【發明所屬之技術領域】 本發明乃係一種定位機構，尤指於面光源裝置之導光板定位 機構。 【先前技術】 按，液晶顯示器（LCD; Liquid Crystal Display)主要係由 一液晶面板（LCD panel)及一面光源裝置（Back Light Module) 所組成；其中液晶面板乃做顯示之用，但其本身卻不具發光之特 性欲進行顯示時’所利用之光源則必需借助於面光源裝置予 以提供，足見面光源裝置於一液晶顯示器中係為一極重要，且不 可或缺之部品。 而如圖一所示，面光源裝置1中之構件包括有··一背板1 1、 一反射膜片（Reflector) 1 2、一導光板（Light-Guide Plate) 1 3、為數不等之擴散膜片（Diffuser) 1 4、為數不等之稜鏡 片（Prism sheet) 1 5、燈源（Light source) 1 6、燈反射器 (Lamp reflector) 1 7 以及一束框1 8。 背板1 1，具有一底盤1 1 1，於底盤丄i 1之周緣形成有 板牆1 12，藉由該板牆1 12構成一容置區113。 反射膜片12 ,主要係使光源能充分的被利用，以改善漏光 之現象。 導光板13，係以具透光性材質之板片體所製成，該導光板 13具有出光面131及相對於出光面工31之一反射面工3 1286249 2，並至少設—側端面為人光面133,且反射面132之表面 •設置有為數眾多的導光點134,又該等導光點i34之面積大 小’則依距離燈源越遠而越予以放大，或距離燈源工秘遠而越 予以加大其導光點13 4之密度。 擴散膜片14，係置於導光板13之上方，其主要在於提升 光的使用效率，並使燈源丨6之光源霧化。 棱鏡片^ 5係用以修正光的方向，而達到聚光的效果以及 '攀 提高正面之輝度。 燈源1 6，係設置於人光面i 3 3之相，該燈源ι 6之選 用有的以發光二極體（L E D)為之，有的則以冷陰極燈管（c〇id , cathode fforeseent lamp，CCFL)為之。 燈反射器17，為-〔形之板體，該燈反射器：7係設置於 燈源1 6之-側，以供燈源！ 6所發出之光線導入導光板工3中。 # 該面光源裝置1於組立時，係先將燈源16置於燈反射器1 7内再依序將反射膜片工2、導光板13、擴散膜片工4及棱 鏡片15依序置入背板！！之容置區i i 3内，最後再以束框工 8置於#板11之上方，並將上述之元件予以固定。 其中，為了防止燈源16受導光板工3之衝擊而造成毀損， 並可使導光板13正確之定位，而不致於背板丄丄之容置區工工 3内移動。一般會於燈反射器丄7上’設置有槽孔丄71，而於 槽孔171下方有一定位構件丄7 2，該定位構件係為一七形 1286249 板，該定位構件172之垂直面1721係由下往上穿設於槽孔 171之開口内，並以螺固元件s將其鎖固於燈反射器17上， 接著再將燈源16及導光板13置於燈反射器17上，如圖二、 三所示。 習知之疋位構件17 2，雖已延用多時，但仍有其不儘理想 之處，仍具有下列之缺失·· 1、 由於該定位構件172須以螺固元件s鎖固於燈反 射器17上，因此造成面光源裝置1之零件增加， 進而造成本之增加。 2、 該定位構件172係以螺固元件S鎖固於燈反射器 17上，而該螺固元件s極為細小，當螺固元件s 沒鎖緊時，非常容易造成定位構件i 7 2之鬆脫。 3、 由於該定位構件工7 2係為一薄形L形板，因此定 位構件172之垂直面1721無法確保燈源工 6與導光板13之距離。 4、 該定位構件17 2與導光板13之人光面i 3 3係 呈面與面之水平接觸’該定位構件17 2之垂直面 1 72 1容易叫光板！ 3之輕微撞擊而變形彎 折。 树於習知之定位構件17 2具有上述之缺失，針對此一部 份，實有加以改進之必要性。 1286249 發明人乃係從事面光源裝置相關產業開發之專業人員，有鑑 於習知的面光源裝置之導光板定位謝冓未臻完善，乃以長年工作 經驗積極的進行研究，在不斷的試驗及改良後終獲致本發明。 【發明内容】 本發明之主要目的，乃係提供一種面光源裝置之導光板定位 機構，其主要係於面光源裝置中之燈反射器上沖設一個以上之定 位塊，藉由該定位塊之侧邊端面係與導光板係呈相頂抵之設置， 來有效劇呆定位塊與導光板 < 定位魏及燈管與導光板之間的距 離，以防止燈管受導光板撞擊而毁損者。 本發明之次一目的，乃係提供一種面光源裝置之導光板定位 機構，藉由定位塊與燈反射器係為一體成型，使定位塊達到較佳 之強度，並防止定位塊因導光板之撞擊而變形者。 【實施方式】 為使貴審查委員能更易於了解本發明之結構及所能達到之 功效’茲配合圖示說明如下： 本發明面光源裝置之組成元件係與習知相同，故在此不再贅 述’以下僅針對本發明之定位機構加以說明，合先敘明。 首先，請參閲圖四所示，係為本發明面光源裝置之燈反射器 2 ’該燈反射器2沖設有一個以上之定位塊21，該定位塊21 與燈反射器2係呈一L形，且定位塊21之垂直面211係與導 光板3之入光面31呈垂直設置，亦即該定位塊21之側端面2 1286249 12係相了頁抵於導光板3之入光面31，其中，該定位塊21之 高度係不高於導光板3之厚度。 本發明之功效在於，藉由該定位塊21之側邊端面212係 與導光板3之入光面31呈相頂抵之設置，利用定位塊21垂直 面211之長度來令燈源之燈管與導光板3得以保持適當之距 離’並且使定位塊2 1具一較佳之強度，及承受導光板3之撞擊、 _ 推擠之力道，進而可防止燈管因受到導光板3之撞擊而毁損，另 外，藉由定位塊21與燈反射器2係以沖設而保持一體成型，進 而無須任何鎖固之元件或動作，即可使定位塊2 i達到穩固之定 位及較佳之強度，藉此以減少成本，並以供導光板3獲得一較佳 ， 之疋位效果’以及防止定位塊2 1因導光板2之撞擊而產生變形。 - 次請參閱圖五所示，本發明燈反射器2上沖設之定位塊2 1，可如圖所示，該定位塊2丄之垂直面2丄i上方可沖設成具 _ 一角度之態樣，藉此可更增加定位塊2 i之結構強度。 再請參閱圖六所示，本發明之燈反射器2，亦可將該定位塊 21冲$又成一弧形凸塊，亦同樣可增加定位塊21之結構強度。 又請參閱圖七所示，本發明之燈反射器2，亦可將該定位塊 21沖设成一半圓型之凸塊，亦同樣可增加定位塊2丄之結構強 度。 综上所述，本發明利用定位塊21垂直面211之長度不但 可防止燈管因受到導光板3之撞擊而毀損，另外，藉由定位塊2 12862491286249 IX. Description of the Invention: [Technical Field] The present invention relates to a positioning mechanism, and more particularly to a light guide plate positioning mechanism of a surface light source device. [Previous Technology] Liquid crystal display (LCD) is mainly composed of a liquid crystal panel (LCD panel) and a light source device (Back Light Module). The liquid crystal panel is used for display, but it is itself When there is no illuminating property to be displayed, the light source used must be provided by means of a surface light source device, and the surface light source device is an extremely important and indispensable part in a liquid crystal display. As shown in FIG. 1, the components in the surface light source device 1 include a back plate 1 1 , a reflective film 1 2 , a light-guide plate 1 3 , and a plurality of different types. A diffuser film (Diffuser) 1 4, a number of Prism sheets 15 , a light source 16 , a lamp reflector 1 7 and a bundle of frames 18 . The back plate 1 1 has a chassis 1 1 1 , and a wall 1 12 is formed on the periphery of the chassis 丄i 1 , and a receiving area 113 is formed by the wall 1 12 . The reflective film 12 is mainly used to make the light source fully utilized to improve the phenomenon of light leakage. The light guide plate 13 is made of a plate body having a light transmissive material. The light guide plate 13 has a light exit surface 131 and a reflective surface 31 1286249 2 with respect to the light exit surface 31, and at least the side end surface is The human surface 133, and the surface of the reflecting surface 132 is provided with a plurality of light guiding points 134, and the area size of the light guiding points i34 is enlarged according to the distance from the light source, or the distance from the light source The secret is to increase the density of its light guiding point 13 4 . The diffusion film 14 is placed above the light guide plate 13 mainly for enhancing the efficiency of use of the light and atomizing the light source of the light source 丨6. The prism sheet ^ 5 is used to correct the direction of the light to achieve the effect of collecting light and to increase the brightness of the front side. The light source 16 is disposed on the surface of the human light surface i 3 3 , and the light source ι 6 is selected by a light emitting diode (LED), and some are a cold cathode light tube (c〇id , The cathode fforeseent lamp, CCFL). The lamp reflector 17 is a [shaped plate body, and the lamp reflector: 7 series is disposed on the side of the light source 16 for the light source! The light emitted by 6 is introduced into the light guide plate 3. # When the surface light source device 1 is assembled, the light source 16 is first placed in the lamp reflector 17 and the reflective film 2, the light guide plate 13, the diffusion film 4 and the prism 15 are sequentially placed. Into the backboard! ! In the accommodating area i i 3 , finally, the frame worker 8 is placed above the # board 11, and the above components are fixed. In order to prevent the light source 16 from being damaged by the impact of the light guide plate 3, the light guide plate 13 can be correctly positioned, and the inside of the receiving area 3 of the backing plate is not moved. Generally, a slot 丄 71 is disposed on the lamp reflector 丄7, and a positioning member 丄72 is disposed below the slot 171. The positioning member is a seven-shaped 1286249 plate, and the vertical surface 1721 of the positioning member 172 is The light is inserted into the opening of the slot 171 from the bottom, and is fixed to the lamp reflector 17 by the screwing member s, and then the light source 16 and the light guide plate 13 are placed on the lamp reflector 17, such as Figures 2 and 3 are shown. The conventional clamping member 17 2, although it has been used for a long time, still has its unsatisfactory advantages, and still has the following defects: 1. Since the positioning member 172 has to be locked with the screw element s in the lamp reflection On the device 17, the parts of the surface light source device 1 are increased, which in turn causes an increase. 2. The positioning member 172 is locked to the lamp reflector 17 by the screwing member S, and the screw member s is extremely small. When the screw member s is not locked, the positioning member i 7 2 is easily loosened. Take off. 3. Since the positioning member 7 is a thin L-shaped plate, the vertical surface 1721 of the positioning member 172 cannot ensure the distance between the light source 6 and the light guide plate 13. 4. The positioning member 17 2 and the human light surface i 3 3 of the light guide plate 13 are in horizontal contact with the surface. The vertical surface of the positioning member 17 2 is easily called the light plate! 3 slight impact and deformation and bending. The locating member 17 2 of the tree has the above-mentioned deficiencies, and for this part, there is a need for improvement. 1286249 The inventor is a professional engaged in the development of the related industries of surface light source devices. In view of the fact that the light guide plate positioning of the conventional surface light source device is not perfect, it is actively researched with years of work experience, and is constantly testing and improving. The invention is finally obtained. SUMMARY OF THE INVENTION The main object of the present invention is to provide a light guide plate positioning mechanism for a surface light source device, which is mainly provided with one or more positioning blocks on a lamp reflector in a surface light source device, by which the positioning block is The side end face is arranged against the light guide plate to effectively close the distance between the positioning block and the light guide plate < positioning Wei and the light pipe and the light guide plate to prevent the lamp tube from being damaged by the light guide plate. A second object of the present invention is to provide a light guide plate positioning mechanism of a surface light source device, which is integrally formed by a positioning block and a lamp reflector to achieve a better strength of the positioning block and prevent the positioning block from being struck by the light guide plate. And the deformer. [Embodiment] In order to make it easier for the reviewing committee to understand the structure and the achievable effect of the present invention, the following description is given as follows: The components of the surface light source device of the present invention are the same as those of the prior art, and therefore are no longer Describing 'The following is only a description of the positioning mechanism of the present invention, which will be described first. First, as shown in FIG. 4, it is a lamp reflector 2 of the surface light source device of the present invention. The lamp reflector 2 is punched with more than one positioning block 21, and the positioning block 21 and the lamp reflector 2 are one. L-shaped, and the vertical surface 211 of the positioning block 21 is perpendicular to the light-incident surface 31 of the light guide plate 3, that is, the side end surface 2 1286249 12 of the positioning block 21 is aligned with the light-incident surface of the light guide plate 3. 31, wherein the height of the positioning block 21 is not higher than the thickness of the light guide plate 3. The effect of the present invention is that the side end surface 212 of the positioning block 21 is disposed opposite to the light incident surface 31 of the light guide plate 3, and the length of the vertical surface 211 of the positioning block 21 is used to make the light source of the light source. Maintaining a proper distance from the light guide plate 3 and providing the positioning block 21 with a better strength, and withstanding the impact of the light guide plate 3, _ pushing force, thereby preventing the lamp tube from being damaged by the impact of the light guide plate 3 In addition, the positioning block 21 and the lamp reflector 2 are integrally formed by punching, so that the positioning block 2 i can achieve stable positioning and better strength without any locking components or actions. In order to reduce the cost, and to obtain a better clamping effect for the light guide plate 3, and to prevent the positioning block 2 1 from being deformed by the impact of the light guide plate 2. - Referring to FIG. 5, the positioning block 2 1 of the lamp reflector 2 of the present invention can be arranged to have an angle of _ an angle above the vertical surface 2丄i of the positioning block 2丄. In this way, the structural strength of the positioning block 2 i can be further increased. Referring to FIG. 6 again, the lamp reflector 2 of the present invention can also punch the positioning block 21 into an arc-shaped bump, which can also increase the structural strength of the positioning block 21. Referring to FIG. 7, the lamp reflector 2 of the present invention can also be used to punch the positioning block 21 into a semi-circular bump, which can also increase the structural strength of the positioning block 2丄. In summary, the present invention utilizes the length of the vertical surface 211 of the positioning block 21 to prevent the lamp tube from being damaged by the impact of the light guide plate 3, and in addition, by positioning the block 2 1286249
燈管，且未見於市面，而具有新穎性 及進步性之發明專利核准要件，美依法提出申請，懇請貴審杳 委員之詳鑑’並賜核准專利之處分，至感德便。 【圖式說明簡單說明】 圖一係習知面光源裝置之立體分解圖。 圖二係習知燈反射器與定位構件之立體分解圖。 圖三係習知燈反射器與定位構件之組合示意圖。 圖四係本發明燈反射器之立體圖。 圖五係本發紐反㈣-較佳實_之立_。 圖六係本發明燈反射m較佳實_ —，冰叫-一一1 了 1 /q 圖七係;明燈反射器又—較佳實施例之立體圖。 【主要牛符號說明】 面先源裝置 11背板 1 1 2板牆 12反射膜片 131出光面 13 3入光面 1 1 1底盤 113容置區 1 3導光板 13 2反射面 13 4導光點 1286249 14擴散膜片 1 5稜鏡片 1 6燈源 17燈反射器 1 7 1槽孔 17 2定位構件 1 72 1垂直面 1 8束框 s螺固元件 2燈反射器 2 1定位塊 211垂直面 2 1 2端面 3導光板 3 1入光面The lamp is not found in the market, but has the novelty and progressiveness of the invention patent approval requirements. The US filed an application according to law, and asked for the detailed examination of the members of the review committee and gave the approval of the patent points. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a conventional surface light source device. Figure 2 is an exploded perspective view of a conventional lamp reflector and positioning member. Figure 3 is a schematic diagram of the combination of a conventional lamp reflector and a positioning member. Figure 4 is a perspective view of the lamp reflector of the present invention. Figure 5 is the origin of the new counter (four) - better _ standing _. Figure 6 is a perspective view of the lamp reflector m of the present invention. The ice reflector is one-to-one. The light reflector is again a perspective view of the preferred embodiment. [Main cattle symbol description] Surface source device 11 Back plate 1 1 2 plate wall 12 Reflecting film 131 Light emitting surface 13 3 Light entering surface 1 1 1 Chassis 113 accommodating area 1 3 Light guide plate 13 2 Reflecting surface 13 4 Light guiding Point 1286249 14 diffusion diaphragm 1 5 diaphragm 1 6 light source 17 lamp reflector 1 7 1 slot 17 2 positioning member 1 72 1 vertical surface 1 8 frame s screw solid element 2 lamp reflector 2 1 positioning block 211 vertical Face 2 1 2 end face 3 light guide plate 3 1 into the glossy surface
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