200827843 九、發明說明： 【發明所屬之技術領域】 之導光板定位外框； 裝置使用之背光模組 本發明係關於一種背光模組及其使用 具體而言，本發明係關於一種供液晶顯示 及其使用之導光板定位外框。 【先前技術】200827843 IX. Description of the invention: [Technical field of the invention] Light guide plate positioning frame; backlight module used in the device The present invention relates to a backlight module and its use, in particular, the invention relates to a liquid crystal display and The light guide plate used therein positions the outer frame. [Prior Art]
背光模組係廣泛使用於液晶顯示裝置、電腦鍵盤、行動電 話按鍵、廣告看板及其㈣要辆之裝置上， 類 所需之平面光源。特別是近年爽饬日_壯 蛾衣直 側歧平n日顯轉置的市場需求大幅 成長’為配合液晶顯示裝置在功能上及外觀上 示裝置所使狀背光模組設計也日趨μ化。 f曰曰‘4 【發明内容】 本發明之目的在讀供—種㈣模組及其使狀導光板定 位外框，具有較佳之防漏光效果。 树狀㈣#提供—種縣漁及其使狀導光板定 位外框，具有較簡便之組裝流程。 mi目供—射細組及其使狀導光板定 位外框，可降低整體之生產成本及生產時間。 本發明之背光模組包含導光板、導絲定位外框及光源模 =。導光板定位外_部分覆麟光板之，域佳覆蓋於 $光板頂面之邊緣’位導光板並減少漏光之情形發生。光 5 200827843 源模組較麵設置於導光蚊射卜釘方，且餅導光板之侧 邊。 導光板定位外框包含側壁及導光板定位部。侧壁較佳係垂 直於導光板。導光板定位部自侧壁沿導光板之平面方向向内延 伸，亚覆蓋導光板頂面之-部分。藉由導光板定位部與導光板 之相對位置_，導敍定位部得赚轉光·其頂面法線 方向上之位移。此外，導光板定位部靠近於侧壁之部分係具有 光阻隔性，喊彡絲馳赶的猶直域透料光板後穿 透導光板定位外框之可能性。 在較佳實施例中，導光板定位部之底部係設置有反射層， 以使導光板定位部具有光阻隔性。當光源模組產生的光線直接 或透過導光板射向導絲粒部時，反射層得輯隔光線穿透 導光板定位部，進而減少漏光之發生可能性。 【實施方式】 本發明係提供-種背絲組及其使狀導光板定位外框。 以較佳實施例而言，此背紐_供液晶顯示裝置制。然而 在不同實施射，此背光模、_可供電腦健、行動電話按 鍵、看板及魏需要平面光源之裝置使用。進一步而言，本發 明更包含使耻背細組之液晶顯示裝置。在較佳實施例中， 本發明之液晶顯示裝置係包含—彩色液晶顯示裝置。然而在不 同實施例巾，本發明讀晶顯示裝1亦可包含單色之液晶顯示 裝置。此處所言之液晶顯示裝酬泛指使職晶面板之顯示裝 200827843 置，包含家用的液晶電視、個人電腦及膝上型電腦之液晶監視 器、行動電話及數位相機之液晶顯示幕等。 如圖2所示，本發明之背光模組包含導光板1〇〇、導光板定 位外框3_及光源模組500。此處所言之導光板1〇〇較佳係包 含運用全反射原理將入射光線均勻傳導之光學元件；然而在不 同實施例中，導光板100亦可包含使光線均勻分佈之擴散板或 其他光學元件。此外’導光板100上亦可配合不同光學設計而 • 加設各式光學微結構，或於其上加設各式光學膜片15〇，例如 增光膜或擴散膜等。導光板定位外框3〇〇係部分覆蓋導光板 100之頂面110，且較佳覆蓋於導光板100頂面110之邊緣， 以疋位導光板100並減少漏光之情形發生。在如圖2所示之實 施例中，導光板定位外框300係配合導光板100之形狀而為一 矩开> 框架結構；然而於不同實施例中，導光板定位外框昶〇亦 可為其他不同之形狀。此外，導光板定位外框300較佳係為塑 料所製成;塑料之選擇包含聚對苯二甲酸二乙酯（polyeste;r， _ PET)、聚碳酸酯（p〇lycarbonate，PC)、聚曱基丙烯酸甲酯 (Polymethyl methacrylate, PMMA)或其他有機材質。然而在 不同實施例中，其形成之材質亦可為金屬或其他材料。 如圖2所示，光源模組500較佳係設置於導光板定位外框 300下方。光源模組500係具有一或多個光源裝置51〇。在圖 2所示之較佳實施例中，光源裝置51〇係為一發光二極體 (LED)。光源模組500並包含電路板530，發光二極體形成之 光源裝置510係設置於電路板530之上。電路板530之一部分 7 200827843 則伸入導光板100之下方。然而在不同實施例中，如圖3所示， 光源裝置510亦可包含—燈管。此外，在如圖4所示之實施例 中’光源模組500係位於導光板1〇〇之侧邊，以形成侧入式之 光源。然而在如圖5所示之實施例中，紐模、组500亦可設置 於導光板_之T ’ _成直下式統。料級定位外框 300仍覆蓋導光板loo之邊緣帶，以降低漏光之發生。 如圖4所示’導光板定位外框300包含侧壁310及導光板 定位部330。側壁310較佳魅直於導光板100。導光板定位 部330自侧壁310沿導光板議之平面方向向内延伸，並覆蓋 導光板100頂面11〇之部分。導光板定位部33〇較佳係自侧壁 310之中段起始向内延伸，導光板定位部33〇之上方則可放置 液晶面板(树示)並扣定位。在健實施辦 部330之厚度係介於〇. 3公厘(麵)至h 〇公厘(麵)之間。藉由 導光板定位部330與導光板1G0之相對位置關係，導光板定位 部330得以限制導光板1〇〇於法線方向上之位移。此外，在較 佳實施例中’導光板定位部33〇與侧壁31〇係採一體成形之方 式製造，較佳之生產方式係包含射出成形等模造成形方式。 在較佳實施例中，導光板定位部33〇靠近於侧壁⑽之部 分係具有光阻隔性，_少絲馳刚產生的光線直接或透 過導光板1〇〇後穿透導光板定位外框_之可能性。在如圖4 所示之實施财，導光板定位部咖之底部係妙有反射層 糊’以使導光板定㈣330具有光阻隔性。反射層·較佳 係連接導光板⑽之顧110，且反射層之厚度較佳係約 8 200827843 為介於0· 1公厘Onm)至〇· 5公厘（醜）。在此實施例辛，反射層 7〇〇係分怖於導光板定位部330底部之全部表面上，因此使整 個導光板定位部300具有光阻隔性；然而在如圖6所示之實施 例中’反射層700亦可僅覆蓋於導光板定位部33〇底部靠近側 壁310並對應於光源模組5〇()之一部分。 在較佳實施例中，反射層7〇〇係包含鍵金屬層；換言之， 反射層700係採鍍膜方式直接將具光反射性之金屬鍍於導光 % 板定位部330之底部。在此實施例中，鍍金屬層較佳係包含鐘 銀層，亦即以銀作為反射層7〇〇之主要材質；然而在不同實施 例中’亦可採用其他不同具光反射性之金屬作為鐘膜形成反射 層700之材質。當光源模組500產生的光線直接或透過導光板 100射向導光板定位部330時，反射層700得以阻隔光線穿透 導光板定位部330，進而減少漏光之發生可能性。 圖7所不為反射層700之另一實施例。在此實施例中，反 射層係包含一黏膠層710。黏膠層710係直接或間接貼附於導 _ 光板定位部330之底部。在較佳實施例中，黏膠層彻較佳係 包含聚脂塑膠之材質。黏膠層710之外表面係形成為一反射面 73(L·此反射面730較佳係可含具光反射性之金屬材質；然而 在不同實施例中，反射面730亦可包含非金屬之其他材質，例 如白色或黑色之有機塗料專。此類材質亦足以阻隔來自光源模 組500及導光板100邊緣帶之光線進入導光板定位部330。 在圖8所示之實施例中，反射層700係延伸覆蓋至側壁31〇 之内面313。換&之’除發光裝置510之頂面外，發光裝置51 〇 9 200827843 之侧面亦糾反射層7⑽之包覆。因此，由發光裝置51〇射出 之光線不僅無法進入導光板定位部330，亦無法經由側壁31〇 進入導光板定射卜框_之+。除可降低漏光發生之機率外， 反射層700延伸至侧壁31〇之部分更具有將光線反射再次利用 之功效。 圖9所示為本發明之另一實施例。在此實施例中，導光板 定位外框300之導光板定位部33〇係由吸光材質所製成，以避 鲁免光線穿透導光板定位部33〇而造成漏光現象。以較佳實施例 ❿言，吸光材質係包含黑色或暗色之塑料、金屬或其他不易為 光線所穿透之材質。塑料之選擇包含聚對苯二曱酸二乙酯 (Polyester，PET)、聚碳酸酯（p〇iyCarb〇nate，pc)、聚曱基 丙烯酸曱醋(Polymethyl methacrylate, PMMA)或其他有機材 質。然為提供定位導光板1〇〇及支撐其上液晶面板(未繪示） 之反作用力，形成導光板定位部330之吸光材質必需具有一定 之材料強度。此外，在較佳實施例中，亦可以此吸光材質製成 • 整個導光板定位外框300，以簡化生產製造之程序。 本發明已由上述相關實施例加以描述，然而上述實施例僅 為實施本發明之範例。必需指出的是，已揭露之實施例並未限 制本發明之範圍。相反地，包含於申請專利範圍之精神及範圍 之修改及均等設置均包含於本發明之範圍内。 【圖式簡單說明】 圖1為習知背光模組之示意圖； 圖2為本發明背光模組之實施例元件爆炸圖； 200827843 圖3為背光模組之另一實施例元件爆炸圖； 圖4為背光模組實施例之剖面示意圖； 圖5為背光模組之另-實施例元件爆炸圖； 圖6為背光模組中反射層之另—實施例剖面示意圖； 圖7為V光模組中反射層之另—實施例剖面示意圖； 圖8為背光模組中反射層之另—實施例剖面示意圖； 圖9為a光減巾導光板定位外框之另_實施例剖面示意圖 【主要元件符號說明】 1⑽導光板 110頂面 还〇光學膜片 300導光板定位外框 310侧壁 313内面 330導光板定位部 500光源模組 510光源裝置 530電路板 700反射層 710黏膠層 730反射面 11The backlight module is widely used in liquid crystal display devices, computer keyboards, mobile phone buttons, advertising billboards, and (4) devices required for the class, and the required planar light source. In particular, in recent years, the market demand for the singularity of the singularity of the singularity of the singularity of the singularity of the singularity of the singularity of the singularity has been greatly increased. F曰曰'4 [Summary of the Invention] The object of the present invention is to read the supply-type (four) module and its shaped light guide plate to position the outer frame, and has a better anti-light leakage effect. Tree-shaped (four) # provides - a kind of county fishing and its shaped light guide plate positioning frame, with a simple assembly process. The mi mesh supply-ejection group and its shaped light guide plate are positioned to reduce the overall production cost and production time. The backlight module of the present invention comprises a light guide plate, a guide wire positioning outer frame and a light source module. The light guide plate is positioned outside the _ part of the lining plate, and the field is covered by the light guide plate at the edge of the top surface of the light plate and the light leakage is reduced. Light 5 200827843 The source module is placed on the side of the light guide mosquito and the side of the light guide. The light guide plate positioning outer frame includes a side wall and a light guide plate positioning portion. The side walls are preferably perpendicular to the light guide plate. The light guide plate positioning portion extends inward from the sidewall along the plane of the light guide plate, and partially covers a portion of the top surface of the light guide plate. By the relative position _ of the light guide plate positioning portion and the light guide plate, the guide positioning portion earns a displacement in the normal direction of the top surface. In addition, the portion of the light guide plate positioning portion close to the side wall is provided with light barrier property, and the possibility that the light guide plate of the light guide plate is traversed through the light guide plate and penetrates the light guide plate to position the outer frame. In a preferred embodiment, the bottom of the light guide plate positioning portion is provided with a reflective layer to make the light guide plate positioning portion have light blocking property. When the light generated by the light source module directly or through the light guide plate guides the filament portion, the reflective layer blocks the light from passing through the position of the light guide plate, thereby reducing the possibility of light leakage. [Embodiment] The present invention provides a backing wire group and a positioning light guide plate positioning frame thereof. In a preferred embodiment, the back button is provided for use in a liquid crystal display device. However, in different implementations, the backlight module, _ can be used for computer health, mobile phone buttons, kanbans and devices that require a planar light source. Further, the present invention further includes a liquid crystal display device that makes a shameless fine set. In a preferred embodiment, the liquid crystal display device of the present invention comprises a color liquid crystal display device. However, in different embodiments, the crystal display device 1 of the present invention may also comprise a monochrome liquid crystal display device. The liquid crystal display device mentioned here refers to the display device of the professional crystal panel. It includes LCD TVs for homes, LCD monitors for personal computers and laptops, LCD screens for mobile phones and digital cameras. As shown in FIG. 2, the backlight module of the present invention comprises a light guide plate 1 , a light guide plate positioning frame 3_ and a light source module 500. The light guide plate 1 ′′ as described herein preferably includes an optical element that uniformly conducts incident light by using the principle of total reflection; however, in various embodiments, the light guide plate 100 may also include a diffusion plate or other optical element that evenly distributes light. . Further, the light guide plate 100 may be provided with different optical designs. • Various optical microstructures may be added, or various optical films 15 such as a brightness enhancement film or a diffusion film may be added thereto. The light guide plate positioning frame 3 partially covers the top surface 110 of the light guide plate 100, and preferably covers the edge of the top surface 110 of the light guide plate 100 to clamp the light guide plate 100 and reduce light leakage. In the embodiment shown in FIG. 2, the light guide plate positioning outer frame 300 is matched with the shape of the light guide plate 100 to be a momentary opening frame structure; however, in different embodiments, the light guide plate positioning outer frame may also be For other different shapes. In addition, the light guide plate positioning outer frame 300 is preferably made of plastic; the choice of plastic includes polyethylene terephthalate (polyste; r, _ PET), polycarbonate (p〇ly carbonate, PC), poly Polymethyl methacrylate (PMMA) or other organic materials. However, in various embodiments, the material from which it is formed may also be metal or other material. As shown in FIG. 2, the light source module 500 is preferably disposed under the light guide plate positioning outer frame 300. The light source module 500 has one or more light source devices 51A. In the preferred embodiment illustrated in Figure 2, the light source device 51 is a light emitting diode (LED). The light source module 500 further includes a circuit board 530, and the light source device 510 formed by the light emitting diodes is disposed on the circuit board 530. A portion of the circuit board 530, 7200827843, extends below the light guide plate 100. However, in various embodiments, as shown in FIG. 3, the light source device 510 may also include a light tube. Further, in the embodiment shown in Fig. 4, the light source module 500 is located on the side of the light guide plate 1 to form a side-in type light source. However, in the embodiment shown in FIG. 5, the new mode and the group 500 may also be disposed on the light guide plate _ T ′ _ in a straight type. The material level positioning frame 300 still covers the edge band of the light guide plate loo to reduce the occurrence of light leakage. As shown in FIG. 4, the light guide plate positioning outer frame 300 includes a side wall 310 and a light guide plate positioning portion 330. The side wall 310 is preferably charmed to the light guide plate 100. The light guide plate positioning portion 330 extends inward from the side wall 310 in the plane direction of the light guide plate and covers a portion of the top surface 11 of the light guide plate 100. The light guide plate positioning portion 33 is preferably extended inward from the middle portion of the side wall 310, and the liquid crystal panel (tree) is placed above the light guide plate positioning portion 33 to be positioned. The thickness of the implementation unit 330 is between 公3 mm (face) and h 〇 mm (face). The light guide plate positioning portion 330 restricts the displacement of the light guide plate 1 in the normal direction by the relative positional relationship between the light guide plate positioning portion 330 and the light guide plate 1G0. Further, in the preferred embodiment, the "light guide plate positioning portion 33" and the side wall 31 are integrally formed. The preferred production method includes a mold forming method such as injection molding. In a preferred embodiment, the portion of the light guide plate positioning portion 33 adjacent to the side wall (10) is light-blocking, and the light generated by the wire is directly or transmitted through the light guide plate 1 and then penetrates the light guide plate to position the frame. The possibility of _. In the implementation shown in Fig. 4, the bottom of the light guide plate positioning portion is provided with a reflective layer paste to make the light guide plate (430) 330 have light barrier properties. The reflective layer is preferably connected to the light guide plate (10) 110, and the thickness of the reflective layer is preferably about 8 200827843 from 0. 1 mm Onm to 〇 5 mm (ugly). In this embodiment, the reflective layer 7 is disposed on the entire surface of the bottom of the light guide plate positioning portion 330, thereby making the entire light guide plate positioning portion 300 light-blocking; however, in the embodiment shown in FIG. The reflective layer 700 may also cover only the bottom of the light guide plate positioning portion 33 and the side wall 310 and correspond to a portion of the light source module 5 (). In a preferred embodiment, the reflective layer 7 comprises a bond metal layer; in other words, the reflective layer 700 is directly plated with a light reflective metal to the bottom of the light guide plate positioning portion 330. In this embodiment, the metallization layer preferably comprises a silver layer, that is, silver as the main material of the reflective layer 7; however, in different embodiments, other different light reflective metals may be used. The bell film forms the material of the reflective layer 700. When the light generated by the light source module 500 is directly or transmitted through the light guide plate 100 to the light guide plate positioning portion 330, the reflective layer 700 blocks the light from passing through the light guide plate positioning portion 330, thereby reducing the possibility of light leakage. FIG. 7 is not another embodiment of the reflective layer 700. In this embodiment, the reflective layer comprises an adhesive layer 710. The adhesive layer 710 is attached directly or indirectly to the bottom of the light guide positioning portion 330. In a preferred embodiment, the adhesive layer is preferably a material comprising a polyester plastic. The outer surface of the adhesive layer 710 is formed as a reflective surface 73 (L. The reflective surface 730 preferably contains a light reflective metal material; however, in various embodiments, the reflective surface 730 may also comprise a non-metallic surface. Other materials, such as white or black organic coatings, are also sufficient to block light from the edge of the light source module 500 and the light guide plate 100 from entering the light guide plate positioning portion 330. In the embodiment shown in Fig. 8, the reflective layer The 700 series extends over the inner surface 313 of the side wall 31. In addition to the top surface of the illuminating device 510, the side of the illuminating device 51 〇9 200827843 is also covered by the illuminating layer 7 (10). Therefore, by the illuminating device 51 The emitted light can not only enter the light guide plate positioning portion 330, but also cannot enter the light guide plate through the side wall 31. In addition to reducing the probability of light leakage, the reflective layer 700 extends to the side wall 31. The utility model has the effect of reusing the light reflection. Fig. 9 shows another embodiment of the invention. In this embodiment, the light guide plate positioning portion 33 of the light guide plate positioning outer frame 300 is made of a light absorbing material, Avoid Light penetrates the light guide plate positioning portion 33 to cause light leakage. In a preferred embodiment, the light absorbing material is a black or dark plastic, metal or other material that is not easily penetrated by light. The choice of plastic includes a pair of colors. Diester benzoate (PET), polycarbonate (p〇iyCarb〇nate, pc), polymethyl methacrylate (PMMA) or other organic materials. The light-absorbing material of the light-guiding plate positioning portion 330 must have a certain material strength, and in the preferred embodiment, the light-absorbing material can also be used to make the reaction force of the upper liquid crystal panel (not shown). The entire light guide plate positions the outer frame 300 to simplify the manufacturing process. The present invention has been described by the above related embodiments, but the above embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments are not The scope of the invention is limited and the modifications and equivalents of the spirit and scope of the invention are included in the scope of the invention. 1 is a schematic view of a conventional backlight module; FIG. 2 is an exploded view of an embodiment of a backlight module of the present invention; 200827843 FIG. 3 is an exploded view of another embodiment of the backlight module; FIG. 5 is an exploded view of another embodiment of the backlight module; FIG. 6 is a cross-sectional view showing another embodiment of the reflective layer in the backlight module; FIG. 7 is another embodiment of the reflective layer in the V-light module. - Fig. 8 is a cross-sectional view showing another embodiment of the reflective layer in the backlight module; Fig. 9 is a cross-sectional view showing another embodiment of the positioning frame of the light reducing plate of the light reducing blade [Description of main components] 1 (10) The top surface of the light plate 110 is also 〇 optical film 300 light guide plate positioning outer frame 310 side wall 313 inner surface 330 light guide plate positioning portion 500 light source module 510 light source device 530 circuit board 700 reflective layer 710 adhesive layer 730 reflective surface 11