M424510 五、新型說明： 【新型所屬之技術領域】 本創作關於一種背光模組。 【先前技術】 圖4為一習知背光模組的示意圖。如圖4所示，背光模組1〇〇 包含一光源102、一散熱件1〇4及一導光板106。導光板1〇6設置 於散熱件104上，且光源1〇2貼附於散熱件1〇4的一侧。因散熱 Φ 件通常為鋁擠材料所構成，當光源102發出的光線照射至散 熱件104容易形成雜亂的反射光I’若光源1〇2及導光板1〇6靠近 光源102的一端的上方無充分的遮蔽，容易產生邊緣漏光的問題。 另一方面，當導光板106如圖4所示因溫度、外力等因素產生翹 曲嫒开>時，若變形的程度超過預設的容許值，會使漏光的問題更 加嚴重’導致顯示畫面異常。 其他的習知技術例如台灣專利公告號TWM331123揭露一種 鲁 f光模組，包含-下框、一導光板及一光源。下框具有底板及與 底板體成型之光源反射罩，光源反射罩包含一延伸臂，延伸臂 可使光源反射罩固定於底板與導光板之間，使來自光源的光線直 接進入導光板而提高光線的利用率。台灣專利公告號TWM3735〇〇 揭露-種背光模組’包含-挾持裝置、一基材及一光源。基材具 $入光面、出光面及底面’挾持裝置包含一背框，且光源設置於 背框的-側踏及基材之間。基材設置於背框的本體上且限位於一 延伸部與本體H框可軸金屬賴方式—體成型。台灣專 利公告號TWI3229H揭露一種背光模組，包含一光源、.一導光板 3 M424510 及-反射罩。反射罩包含—可提供散熱效果的金屬基板，金屬基 板包含-本體及—延伸部’延伸雜於導光板的下方，且導光板 夾3又於金屬基板。中華人民共和國專利公開號CN1637523揭露一 種-體成型的料’料容置發光二極體燈條 ，且導光板夾設於 燈罩。 【新型内容】 • 本創作提供'種背光模組，此種背光模組能減少邊緣漏光現 象並避免導光板過度撓曲變形，以提高顯示晝面的品質。 ^本創作的其他目的和優點可以從本創作所揭露的技術特徵中 得到進步的了解。為達上述之一或部份或全部目的或是其他目 的’本創作之-實施例提供一種背光模組，包含一背板、一散熱 =一光源以及—導光板。散熱件設置於背板上且包含-側部及 ，別j接於側部的兩端的—基部及—蓋部。基部及蓋部分別與侧 _ 肖度’且光源蘭散熱件_部。導光板設置於散熱件的 =社’散熱件的蓋部延伸至疊合導光板位置處，且蓋部與導光 奴保待一間隙。 ;實知例中’一定位結構形成於蓋部上並朝導光板的方向 位道、，疋位^具有與導光板的—出光面實質平行的—表面以限 仅導光板。 構呈t實施财，至少—光學則設置於導光板上，且定位結 、凹卩以谷置光學則的—端側並限位^學膜片。 於Μ域t，-踢框設置於散熱件的蓋部上並嵌入散熱 4 M424510 臈片的一端側及導光板的外形的一階梯 件，且膠框具有對應光學 部。 於-實施财，散熱件為—雜斯料所構成，且光源包含 一發光二極體燈條》 綜上所述’本創作之實施_背絲組至少具有下列其中 一個優點： ^ 當光源發㈣鱗被散熱件反射㈣成缝的反射光時因 為散熱件的蓋料延伸至導光板靠近杨的上方而提供充分的遮 蔽’如此可避免_1的反射光射出喊少邊緣漏光。另外，當導 =板因酿度、外力物素產生祕變形時，蓋部可抵靠導光板以 提供限位導光板的效果’使導光板的翹曲變雜度轉在設計的 奋許值内’敎導光板過度變料致顯示晝面異常。再者，散熱 件可形成-定位結構以提供限位光學膜片及導光板的效果。 本創作的其他目的和優點可峨本創作所揭露術特徵中 得到進步的了解。為讓本創作之上述和其他目的特徵和優點 月匕更明顯雜’下文特舉實施例並配合所附圖式，彳憐細說明如 下。 【實施方式】 有關本創作之前述及其他技術内容、特點與功效，在以下配 α參考圖式之實施例的詳細說明中，將可清楚的呈現。以下實施 例中所提到的方向用語，例如：上、下、左、右、前或後等，僅 5 M424510 是參考附加®柄方向。因此，制财向膀是絲說明並非 用來限制本創作。 圖1為依本創作-實施例的背光模組示意圖。如目ι所示， 背光模組ίο包含-背板12、一散熱件14、一光源16及一導光板 18。散熱件14設置於背板12上，且散熱件14包含一側部⑷及 分別連接於側部14a的兩端的一基部咐及一蓋部W。基部_ 及蓋部！4c彼此相對設置且分別與側部…夹一角度。光源i6貼 •附散熱件14的側部14a ’舉例而言，光源I6可為-發光二極體燈 條’且散熱件Μ可為-轉型材料所構成。導光板18設置於散 熱件14的基部14b ±，散熱件14的蓋部Mc延伸至導光板μ靠 近光源16的上方，蓋部14c可延伸至疊合導光板18位置處且 蓋部A與導光㈣保持―_8。#絲16發出的光線被散熱 件14反射而形成雜亂的反射光以夺，因為散熱件14的蓋部^ 可延伸至導光板18靠近光源16的上方而提供充分的遮蔽，如此 可避免雜亂的反射光I射出而減少邊緣漏光。另外，當導光板μ >因溫度、外力等因素產絲曲變形時，蓋部…可如圖2所示抵 靠導光板以提供限位導光板18的效果，如此可使導光板^的 勉曲變形程度維持在設計的容許值内，避免導光板18過度變形導 致顯示晝面異常。另-方面，_8的大小可視不_格的導光 板所規範的變形容許值決定。請參照圖卜於本實施例中，一定位 結構22可形成於蓋部Mc上並朝導光板18的方向凸伸且至少 -光學膜片24設置於導光板18上。定位結構22例如具有一凹口 22a以容置光學膜片24的-端侧’藉以限位光學膜片24，且定位 M424510 f冓22具有與導光板18的出光面收實質平行的-表面勝當 導，板18勉曲變形時，定位結構22的表面22b可抵靠出光面18a =提供限彳域果。再者，依本實施狀設計，目散齡Μ可提供 的膠框元件的舰，故可省略雜元件而減少絲工時並降 低模具及製造穌，且賴们何為―體成㈣設計㈣一步減 少模具及製造成本。 如圖3所示’於另一實施例中’背光模組30具有-膠框32， •雜32設置於散熱件14的蓋部⑷上錢入散熱件μ。因膠框 %可對應光學膜片24的端侧及導光板18的外形形成一階梯部 Τ ’故可省略圖1所示蚊位結構22，同樣可提供限位光學膜片 24及導光板ι8的效果。 综上所述，本創作之實施例的背光模組至少具有下列其中 一個優點： 當光源發ίΗ触線被散餅反射_彡雜亂的反射光時，因 鲁=政熱件的蓋部可延伸至導光板靠近光源的上方而提供充分的遮 敝，如此可避免雜亂的反射光射出而減少邊緣漏光。另外，當導 ，板因溫度、外力等因素產生Μ變形時，蓋部可抵靠導光板以 $供限位導光板的效果，使導光板的龜曲變雜度維持在設計的 容許值内’避免導光板過度變形導致顯示畫面異常。再者，散熱 件可形成一定位結構以提供限位光學膜片及導光板的效果。 惟以上所述者’僅為本創作之較佳實施例而已，當不能以此 限定^作實施之範圍’即大凡依本新财請專利範圍及新型說 月内备所作之簡單的等效變化與修飾，皆仍屬本新型專利涵蓋之 M424510 範圍内。糾補作的任-實_或巾請專料須達成本創 作所揭露之全部目的或優點或特點。此外，摘要部分和標題僅是 用來辅助專利文件搜尋之用，並_來限制本創作之權^範圍7 本說明書或申請專利範圍中提及的“第一，，、“第二，，等用語僅 用以命名元件(element)的名稱或區別不同實施例或範圍，而並非用 來限制元件數量上的上限或下限。 φ 【圖式簡單說明】 圖1為依本創作一實施例的背光模組示意圖。 圖2為說明圖1的背光模組的功效的示意圖。 圖3為依本創作另一實施例的背光模組示意圖。 圖4為一習知背光模組的示意圖。 【主要元件符號說明】 10、 30 背光模組 12 背板 14 散熱件 14a 散熱件的側部 14b 散熱件的基部 14c 散熱件的蓋部 16 光源 18 導光板 18a 導光板的出光面 8 M424510 22 定位結構 22a 定位結構的凹口 22b 定位結構的表面 24 光學膜片 32 膠框 100 背光模組 102 光源 • 104散熱件 106 導光板 I 反射光 S 間隙 T 階梯部M424510 V. New description: [New technical field] This creation is about a backlight module. [Prior Art] FIG. 4 is a schematic diagram of a conventional backlight module. As shown in FIG. 4, the backlight module 1A includes a light source 102, a heat sink 1〇4, and a light guide plate 106. The light guide plate 1〇6 is disposed on the heat sink 104, and the light source 1〇2 is attached to one side of the heat sink 1〇4. Since the heat-dissipating Φ member is usually composed of an aluminum extruded material, when the light emitted from the light source 102 is irradiated to the heat dissipating member 104, it is easy to form a disordered reflected light I'. If the light source 1〇2 and the light guide plate 1〇6 are close to the end of the light source 102, there is no upper end. Full coverage, easy to produce edge leakage problems. On the other hand, when the light guide plate 106 is warped and opened due to factors such as temperature and external force as shown in FIG. 4, if the degree of deformation exceeds a preset allowable value, the problem of light leakage becomes more serious. abnormal. Other conventional techniques, such as Taiwan Patent Publication No. TWM331123, disclose a Luf optical module comprising a lower frame, a light guide plate and a light source. The lower frame has a bottom plate and a light source reflector formed on the bottom plate body. The light source reflector comprises an extension arm, and the extension arm can fix the light source reflector between the bottom plate and the light guide plate, so that the light from the light source directly enters the light guide plate to improve the light. Utilization. Taiwan Patent Publication No. TWM3735 discloses a backlight module that includes a holding device, a substrate, and a light source. The substrate has a light-incident surface, a light-emitting surface and a bottom surface. The holding device comprises a back frame, and the light source is disposed between the side of the back frame and the substrate. The substrate is disposed on the body of the back frame and is limited to an extension portion and a frame of the body H. Taiwan Patent Publication No. TWI3229H discloses a backlight module comprising a light source, a light guide plate 3 M424510 and a reflector. The reflector includes a metal substrate that provides a heat dissipation effect, and the metal substrate includes a body and an extension portion that extend under the light guide plate, and the light guide plate holder 3 is again on the metal substrate. The Patent Publication No. CN1637523 discloses that a body-formed material accommodates a light-emitting diode light bar, and the light guide plate is sandwiched between the light shields. [New content] • This creation provides a kind of backlight module, which can reduce edge leakage and avoid excessive deflection of the light guide plate to improve the quality of the display surface. Other purposes and advantages of the present work can be appreciated from the technical features disclosed in this work. A backlight module is provided for one or a part or all of the above or other objects of the present invention, including a backing plate, a heat sink = a light source, and a light guide plate. The heat dissipating member is disposed on the back plate and includes a side portion and a base portion and a cover portion connected to both ends of the side portion. The base and the cover are respectively associated with the side _ 度 ′′ and the light source blue heat sink _ portion. The light guide plate is disposed on the heat sink, and the cover portion of the heat sink member extends to the position of the laminated light guide plate, and the cover portion and the light guide are kept in a gap. In a known example, a positioning structure is formed on the cover portion and oriented in the direction of the light guide plate, and the surface has a surface substantially parallel to the light-emitting surface of the light guide plate to limit the light guide plate. The structure is implemented by t, at least—the optical is disposed on the light guide plate, and the positioning knot and the concave ridge are arranged on the end side of the optical optical end and are limited to the diaphragm. In the field t, the kick frame is disposed on the cover of the heat sink and is embedded in a step of the heat dissipation 4 M424510 one end side of the die and the outer shape of the light guide plate, and the plastic frame has a corresponding optical portion. In the implementation of the financial, the heat sink is composed of - slag material, and the light source comprises a light-emitting diode light strip. In summary, the implementation of the present invention has at least one of the following advantages: ^ When the light source is emitted (4) The scale is reflected by the heat sink (4) When the reflected light is formed into a slit, the cover material of the heat sink extends to the upper side of the light guide plate to provide sufficient shielding. Thus, the reflected light of the light source is prevented from being emitted and the edge light is leaked. In addition, when the guide plate is deformed due to the degree of brewing and external force, the cover portion can abut against the light guide plate to provide the effect of the limit light guide plate, and the warpage of the light guide plate is turned into the design value. The inside of the '敎 light guide plate is excessively changed to cause abnormalities in the face. Furthermore, the heat sink can form a positioning structure to provide the effect of limiting the optical film and the light guide. Other purposes and advantages of this creation are to provide an insight into the features of the present disclosure. The above and other objects and advantages of the present invention are made more apparent. The following specific embodiments and the accompanying drawings are described in detail below. [Embodiment] The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the accompanying drawings. The directional terms mentioned in the following examples, such as up, down, left, right, front or back, etc., only 5 M424510 is the reference additional ® handle direction. Therefore, making money is a statement that is not intended to limit this creation. FIG. 1 is a schematic diagram of a backlight module according to the present invention. As shown in the figure, the backlight module ί includes a back plate 12, a heat sink 14, a light source 16, and a light guide plate 18. The heat sink 14 is disposed on the back plate 12, and the heat sink 14 includes a side portion (4) and a base portion 咐 and a cover portion W respectively connected to both ends of the side portion 14a. Base _ and cover! 4c are disposed opposite each other and are respectively angled with the side portions. The light source i6 is attached to the side portion 14a of the heat sink 14. For example, the light source I6 can be a light-emitting diode strip and the heat sink can be a transition material. The light guide plate 18 is disposed on the base portion 14b of the heat sink 14. The cover portion Mc of the heat sink 14 extends to the upper side of the light guide plate 51 near the light source 16. The cover portion 14c can extend to the position of the laminated light guide plate 18 and the cover portion A and the guide Light (4) keeps __8. The light emitted by the wire 16 is reflected by the heat sink 14 to form a disordered reflected light, because the cover portion of the heat sink 14 can extend to the light guide plate 18 close to the light source 16 to provide sufficient shielding, thereby avoiding clutter. The reflected light I is emitted to reduce edge leakage. In addition, when the light guide plate μ > is deformed due to temperature, external force, etc., the cover portion can be abutted against the light guide plate as shown in FIG. 2 to provide the effect of the position light guide plate 18, so that the light guide plate can be The degree of distortion is maintained within the allowable value of the design, and the excessive deformation of the light guide plate 18 is caused to cause an abnormality in the display surface. On the other hand, the size of _8 can be determined by the allowable value of the deformation specified by the light guide plate. Referring to FIG. 2, a positioning structure 22 may be formed on the cover portion Mc and protrude toward the light guide plate 18 and at least - the optical film 24 is disposed on the light guide plate 18. The positioning structure 22 has, for example, a notch 22a for accommodating the -end side of the optical film 24 to limit the optical film 24, and the positioning M424510 f冓22 has a substantially parallel surface with the light-emitting surface of the light guide plate 18. When the plate 18 is distorted, the surface 22b of the positioning structure 22 can abut against the light exit surface 18a. Furthermore, according to the design of this embodiment, the ship of the plastic frame component can be provided by the age class, so that the miscellaneous components can be omitted, the wirework time can be reduced, and the mold and the manufacture can be reduced, and what is the "body" (four) design (4) Reduce mold and manufacturing costs in one step. As shown in FIG. 3, in another embodiment, the backlight module 30 has a plastic frame 32, and the dummy 32 is disposed on the cover portion (4) of the heat sink 14 to be inserted into the heat sink member (μ). Since the frame % can form a step portion corresponding to the end side of the optical film 24 and the outer shape of the light guide plate 18, the mosquito bit structure 22 shown in FIG. 1 can be omitted, and the limit optical film 24 and the light guide plate ι8 can also be provided. Effect. In summary, the backlight module of the embodiment of the present invention has at least one of the following advantages: When the light source is transmitted by the scattered cake, the cover portion of the heat member can be extended. The light guide plate is provided close to the light source to provide sufficient concealing, so as to avoid the scattered reflected light and reduce the edge leakage. In addition, when the guide plate is deformed due to temperature, external force and the like, the cover portion can abut the light guide plate to provide the effect of the limit light guide plate, and the tortuosity of the light guide plate is maintained within the allowable value of the design. 'Avoiding excessive deformation of the light guide plate causes the display to be abnormal. Furthermore, the heat sink can form a positioning structure to provide the effect of limiting the optical film and the light guide plate. However, the above description is only a preferred embodiment of the present invention. When it is not possible to limit the scope of implementation, it is a simple equivalent change made by the patent scope and the new type of monthly subscription. And the modifications are still within the scope of M424510 covered by this new patent. Anything or the benefits or features disclosed in this creation must be agreed upon. In addition, the abstract sections and headings are only used to assist in the search of patent documents, and to limit the scope of this creation. Scope 7 "First," "Second, etc." The terminology is used merely to recite the name of the element or to distinguish different embodiments or ranges, and not to limit the upper or lower limit of the number of elements. φ [Simplified description of the drawings] FIG. 1 is a schematic diagram of a backlight module according to an embodiment of the present invention. FIG. 2 is a schematic view illustrating the efficacy of the backlight module of FIG. 1. FIG. FIG. 3 is a schematic diagram of a backlight module according to another embodiment of the present invention. 4 is a schematic diagram of a conventional backlight module. [Main component symbol description] 10, 30 backlight module 12 back plate 14 heat sink 14a heat sink side portion 14b heat sink base portion 14c heat sink cover portion 16 light source 18 light guide plate 18a light guide plate light exit surface 8 M424510 22 positioning Structure 22a Notch 22b of positioning structure Surface 24 of positioning structure Optical film 32 Plastic frame 100 Backlight module 102 Light source • 104 heat sink 106 Light guide plate I Reflected light S Clearance T Step