M30204#vfd〇c/s 八、新型說明： 【新型所屬之技術領域】 本創作疋有關於一種面光源模組與其支樓裝置，且特 別是有關於一種背光模組以及用於此背光模組中的支撐 件。 【先前技術】 液晶顯示為主要疋由一液晶顯示面板及一背光模組 所構成。液晶顯示面板是由兩片透明基板及配置於此二透 馨明基板間的一液晶層所構成，而背光模組則是用以提供此 液晶顯示面板所需之面光源’以使液晶顯示器達到顯示的 效果。一般來說，背光模組大致上可分為直下式與側邊入 光式兩種，其中直下式背光模組通常應用在較大尺寸的液 晶顯示面板。 請參照圖1，習知背光模組100是一直下式背光模組， 其包括一燈箱110、多個冷陰極螢光燈管（c〇ld Cath〇deM30204#vfd〇c/s VIII. New description: [New technical field] The present invention relates to a surface light source module and its branch building device, and in particular to a backlight module and a backlight module therefor Support in the middle. [Prior Art] The liquid crystal display is mainly composed of a liquid crystal display panel and a backlight module. The liquid crystal display panel is composed of two transparent substrates and a liquid crystal layer disposed between the two transparent substrates, and the backlight module is used to provide the surface light source required for the liquid crystal display panel to enable the liquid crystal display to reach The effect displayed. In general, the backlight module can be roughly divided into a direct type and a side entrance type, and the direct type backlight module is generally applied to a liquid crystal display panel of a larger size. Referring to FIG. 1 , the conventional backlight module 100 is a direct-type backlight module, which includes a light box 110 and a plurality of cold cathode fluorescent tubes (c〇ld Cath〇de).
Fluorescence Lamp，CCFL)120、一擴散板（Diffuser)13〇 以 及多個支撐件140(圖1中僅繪示一個）。其中，冷陰極螢光 燈官120是配置於燈箱11〇底部，而擴散板13〇是配置於 ：ί且相110之開口 112處，以使冷陰極螢光燈管12〇所發出 ， 的光線形成一面光源。此外，支撐件140是抵靠於燈箱110 底部與擴散板130之間，以支撐擴散板13〇。 上述之背光模組1〇〇中，支撐件14〇的表面是平滑的 表面’而當支撐件140外表面設置非透明的反射材質時(如 圖2Α所示），冷陰極螢光燈管120所提供的部分光線(如光 M3 0204i)wfd〇c/§ 線121)會被支撐件140反射並入射擴散板13()。由於光線 121與光線122是入射擴散板130的同一處，導致該處的 形成亮點。此外，因為沒有光線從擴散板13〇與支撐件14〇 的接觸處入射擴散板130，導致擴散板130與支撐件14〇 的接觸處形成暗點。因此，冷陰極螢光燈管12〇所提供的 光線通過擴散板130後所形成的面光源之均勻性較差。 另外，當支撐件140的材質為透明材質時(如圖28所 示），冷陰極螢光燈管120所提供的部分光線(如光線123) _ 的一部份會被支撐件140反射並入射擴散板13〇，另一部 份則會穿過支撐件140而入射擴散板13〇。雖然光線123 傳遞至支撐件140時會分成兩部分，使得上述之亮點的情 形得以稍微改善，但亮點的情形仍然存在。而且，由於沒 . 冑光線從擴散板⑽與支標件140的接觸處入射擴散板 130，導致擴散板13〇與支稽件14〇的接觸處形成暗點。因 此，冷陰極螢光燈管12〇所提供的光線通過擴散板13〇後 所形成的面光源之均勻性依舊不佳。另外，由於支撐件14〇 # 接觸擴散板130的一端是呈細尖狀，所以容易頂凸擴散板 13〇，使擴散板130白勺表面形成非平坦表面，進而降低面光 源的均勻性。 綜上所述，習知背光模組⑽所提供的面光源之均句 性欠佳’以致於液晶顯示器所顯示出的影像有亮度的 問題。 【新型内容】 本創作的目的就是在提供一種背光模組，以提升背光 6 M3〇2f>40vfdoc/g 模組所提供之面光源的均勻性。 本創作的另一目的是提供一種支撐件，其適用於一北 光模組中，以提升背光模組所提供之面光源的均勻性。月 本創作的又一目的是提供一種背光模組，以防止1 部之擴散板變形。 〃 m 本創作的再一目的是提供一種支撐件，其適用於一北 光模組中，以防止背光模組之擴散板變形。 、月 為達上述或是其他目的，本創作提出一種背光 其包括-燈箱、至少-燈源、―擴散板與至少—支撐件。 其燈箱具有—開π ’且此開口暴露出燈箱底部，而产 源是配置於燈箱内。擴散板是配置於燈箱之開Π處 = 撐件是抵靠於燈箱底部與擴散板之間。此支撐 透明材質4支撐件的表面設置有—紐散層。此 層適於使燈源所發出的部分光線反射，部分光線穿透二 被光擴散層反射的光線與穿透光擴散層的光線會擴散。 此此^?另提出—種支禮件’其適用於—背光模組中。 月先有-燈箱以及配置於燈箱之—開σ處的 a支撐件適於抵靠紐箱底部錢散板 = f牛的材質為透明材質，且支樓件的表面設置有-光= :光擴政層適於使燈源所發出的部分光線反射，；分 線且被光擴散狀_光線與穿透光擴散層的i 接 箱底部接 觸4與—第二接觸部，其巾第-接觸部適於與燈 在本創作之一實施例中，上述之支撐件包括一第一 7 觸’而弟^一接觸部的一姐；鱼士訌肤, 擴散板接觸。此外，第123觸部，另—端適於與 -ί = ί是呈漸縮狀’且光擴散層是設置於第 —接觸部之表面。 牛 -接觸部的形狀為 在本創作之一實施例中，上述之第 錐狀。 撑件施财’上叙储散層是形成於支 接觸t:之支擇件具有與擴· 在本創作之-實施例中，上述之支撐件包括一第 觸部與一第四接觸部。1 ^ ^ a ^ ^ ，、中弟二接觸部適於與燈箱底部 ，，，而弟四接觸部是配置於第三接觸部上。上述之頂 =四接觸部之-表面，而光擴散層是設置於第四接 的表面。 1 在本創作之-實施例中，上述之支撑件更包括一 源，其配置於支撐件之凹陷内。 〃 ^ 在本創作之一貫施例中，上述之點光源可為發光二 本創作又提出一種背光模組，其包括一燈箱、至少一 k源、一擴散板與至少一支撐件。其中，燈箱具有一開口， 且此開口暴露出燈箱底部’而燈源是配置於燈箱内。 板是配置於燈箱之開π處，而支撐件是抵靠於燈箱底: 擴散板之間。此外’支撐件具有與擴散板接觸的—頂面， M3 0204^vfd〇c/g 且此頂面具有一凹陷。 北本發明再提出一種支撐件，其適用於一背光模組中。 ，背光模級具有—燈箱以及配置於燈箱之-開口處的-擴 ^板，且支撐件適於抵靠於燈箱底部與擴散板之間。此支 撐件八有Η擴散板接觸的一頂面，且此頂面具有一凹陷。Fluorescence Lamp (CCFL) 120, a diffuser (Diffuser) 13 〇 and a plurality of support members 140 (only one is shown in Fig. 1). The cold cathode fluorescent lamp 120 is disposed at the bottom of the light box 11 , and the diffuser 13 is disposed at: ί and the opening 112 of the phase 110 so that the cold cathode fluorescent tube 12 发出 emits light. Form a light source. Further, the support member 140 is abutted against the bottom of the light box 110 and the diffusion plate 130 to support the diffusion plate 13A. In the above backlight module 1 ,, the surface of the support member 14 is a smooth surface ′, and when the outer surface of the support member 140 is provided with a non-transparent reflective material (as shown in FIG. 2A), the cold cathode fluorescent lamp 120 Part of the light provided (e.g., light M3 0204i) wfd〇c/§ line 121) is reflected by the support member 140 and incident on the diffuser plate 13(). Since the light ray 121 and the light ray 122 are the same at the incident diffusing plate 130, a bright spot is formed there. Further, since no light is incident on the diffusion plate 130 from the contact of the diffusion plate 13A with the support member 14A, a dark spot is formed at the contact of the diffusion plate 130 with the support member 14A. Therefore, the uniformity of the surface light source formed by the light provided by the cold cathode fluorescent lamp tube 12 through the diffusion plate 130 is poor. In addition, when the material of the support member 140 is a transparent material (as shown in FIG. 28), part of the light (such as the light ray 123) provided by the cold cathode fluorescent lamp 120 is reflected and incident by the support member 140. The diffusion plate 13 is, and the other portion passes through the support member 140 and enters the diffusion plate 13A. Although the light 123 is split into two parts when it is transmitted to the support member 140, the above-described bright spot condition is slightly improved, but the bright spot still exists. Moreover, since the light is incident on the diffusion plate 130 from the contact of the diffusion plate (10) with the support member 140, a dark spot is formed at the contact of the diffusion plate 13A with the support member 14A. Therefore, the uniformity of the surface light source formed by the light provided by the cold cathode fluorescent lamp tube 12 through the diffusion plate 13 is still poor. In addition, since one end of the support member 14 接触 # contact diffusion plate 130 has a thin tip shape, it is easy to swell the diffusion plate 13 〇, so that the surface of the diffusion plate 130 forms a non-flat surface, thereby reducing the uniformity of the surface light source. In summary, the uniformity of the surface light source provided by the conventional backlight module (10) is such that the image displayed on the liquid crystal display has a problem of brightness. [New content] The purpose of this creation is to provide a backlight module to improve the uniformity of the surface light source provided by the backlight 6 M3〇2f>40vfdoc/g module. Another object of the present invention is to provide a support member that is suitable for use in a north light module to improve the uniformity of the surface light source provided by the backlight module. Another object of the creation of the moon is to provide a backlight module to prevent deformation of one of the diffusion plates. 〃 m A further object of the present invention is to provide a support member that is suitable for use in a north light module to prevent deformation of the diffuser plate of the backlight module. Month To achieve the above or other purposes, the present application proposes a backlight comprising a light box, at least a light source, a "diffusion plate" and at least a support member. The light box has - π ' and this opening exposes the bottom of the light box, and the source is disposed in the light box. The diffuser is placed in the opening of the light box = the support is placed between the bottom of the light box and the diffuser. The surface of the support transparent material 4 support member is provided with a new layer. This layer is adapted to reflect a portion of the light emitted by the light source, and a portion of the light penetrates through the light reflected by the light diffusing layer and the light that penetrates the light diffusing layer. In this case, another kind of gift piece is applied to the backlight module. The first month - the light box and the a support member arranged at the σ at the opening of the light box are adapted to abut against the bottom of the button box. The material of the bull is transparent, and the surface of the branch is provided with - light = : light The expansion layer is adapted to reflect part of the light emitted by the light source; the line is split by the light _ light and the bottom of the i-connector that penetrates the light diffusion layer 4 and the second contact portion, the towel first contact Part of the present invention is suitable for the lamp. In the embodiment of the present invention, the support member includes a first 7-touch and a sister of the contact portion; the fisherman's skin, the diffusion plate contacts. Further, the 123rd contact portion is adapted to be tapered with -ί = ί and the light diffusion layer is disposed on the surface of the first contact portion. The shape of the cattle-contact portion is the above-described first tapered shape in one embodiment of the present invention. The support member is disposed on the support contact t: the support member has and expands. In the present embodiment, the support member includes a first contact portion and a fourth contact portion. 1 ^ ^ a ^ ^ , the middle two contact portion is adapted to be connected to the bottom of the light box, and the fourth contact portion is disposed on the third contact portion. The top of the above = the surface of the four contacts, and the light diffusion layer is disposed on the surface of the fourth junction. In the present invention, the support member further includes a source disposed in the recess of the support member. 〃 ^ In the consistent application of the present invention, the above-mentioned point light source can be a light-emitting design and a backlight module, which comprises a light box, at least one k source, a diffusion plate and at least one support member. Wherein, the light box has an opening, and the opening exposes the bottom of the light box and the light source is disposed in the light box. The plate is disposed at the opening π of the light box, and the support member is abutted against the bottom of the light box: between the diffusion plates. Further, the 'support member has a top surface in contact with the diffusion plate, M3 0204^vfd〇c/g and the top mask has a recess. The north invention further proposes a support member suitable for use in a backlight module. The backlight module has a light box and a plate disposed at the opening of the light box, and the support member is adapted to abut between the bottom of the light box and the diffuser plate. The support member has a top surface that is in contact with the diffuser plate, and the top mask has a recess.
在本創作之一實施例中，上述之支撐件包括一第三接 觸部與-第四接觸部。其中’第三接觸部適於與燈箱底部 ，，，而第四接觸部是配置於第三接觸部上。上述之頂面 是第四接觸部之—表面，而光擴散層是設置於第四接觸部 在本創作之一實施例中， 源’其配置於支撐件之凹陷内 在本創作之一實施例中， 體〇 上述之支撐件更包括一點光 Ο 上述之點光源可為發光二極In an embodiment of the present invention, the support member includes a third contact portion and a fourth contact portion. Wherein the 'third contact portion is adapted to the bottom of the light box, and the fourth contact portion is disposed on the third contact portion. The top surface is the surface of the fourth contact portion, and the light diffusion layer is disposed on the fourth contact portion. In one embodiment of the present invention, the source is disposed in the recess of the support member. In an embodiment of the present invention The above-mentioned support member further includes a little light. The above-mentioned point light source can be a light-emitting diode
=本創作之支料表面的光擴散層除了可使 = = 與穿透支樓件的光線擴散，以避免亮點的 ίΐ: ’ 自支揮件與擴散板的接觸處入射 背光模組可提供均===; 件與擴散板的接觸面積較大，故可另—支撐 為讓本創作之上述和1他目㈤⑭L交形。 易懂，下文特舉較佳實蘭，並配人==點能更明顯 明如下。 _ 口所附圖式，作詳細說 M3 〇2〇40^〇(^ 【實施方式】 第一實施例 圖3是本創作第一實施例之背光模組的剖面示意圖， 而圖4是本創作第一實施例之背光模組中傳遞至支撐件的 光線之光路徑示意圖。請參照圖3與圖4，本實施例之背 光模組20〇包括一燈箱210、至少一燈源220(圖3中繪示 多個）、一擴散板230與至少一支撐件24〇。其中，燈箱21〇 具有一開口 212，且此開口 212暴露出燈箱210底部，而 ，源220是配置於燈箱21〇内。具體而言，燈源22〇例如 疋配置於燈箱210底部。擴散板23()是配置於燈箱21〇之 開口 212處，而支撐件24〇是抵靠於燈箱21〇底部與擴散 板230之間，以支撐擴散板23〇。此支撐件的材質為 透月材貝，且支撐件240的表面設置有—光擴散層241。 此光擴散層241適於使燈源21()所發出的部分光線犯反 1，部分光線212冑透，且被光擴散層241反射的光線與 牙透光擴散層241的光線會擴散。 上述之背光模組2〇〇中，支撐件24〇可包括一 一第二接觸部244，其中第一接觸部242適於 ==底觸、，而第二接觸部、 立而適於與擴散板230接觸。此外，第一 接觸部244自連接第一彳 ^此外乐— 230之-端是^觸# 之一端至接觸擴散板 的形狀例如為錐狀，但其亦可為其他形狀接㈣244 承上述’光擴散層241例如是形成於切件謂表面 ]Vi3 02〇e^(^f.d〇c/g 的粗糙結構。具體而言，光擴散層241的形成方式例如是 對第二接觸部244之表面進行磨砂或蝕刻製程，以形 链結構。 由於本實施例之支撐件24G表面形成有光擴散層 241，§光源220所發出的部分光線(如光線212)傳遞至支 撐件240時，一部份的光線212會被反射，另一部份的光 線212會穿透光擴散層241而進入支撐件24〇内部。其中， 由於光擴散層241會使被反射的光線212擴散後才入/射擴 散板23〇，所以不易造成亮點的情形。 另一方面，穿透光擴散層241的光線212亦會擴散， j擴散後的光線可分成兩部分，其中一部分的光線會再度 穿透光擴散層241，並再度擴散而人射擴散板23()。由於= 些牙過支撐件的光線是擴散後权射擴散板23〇，所 以不易形成壳點。此外，另一部份的光線會在支撐件 ，部反射，並自支撐件240與擴散板230的接觸處入射擴 散板230，所以在支撐件24〇與擴散板23Q的接觸處不會 產生暗點。因此，本實施例之背光模組200所提供之面光 源具有較佳的均勻性。 在本實施例中，燈源220例如是冷陰極螢光燈管，但 其亦可為其他適用之燈源，如發光二極體。此外，支撐件 的材貝可為透明壓克力、聚碳酸酯（polycarbonate, C)水曱基丙稀酸甲 g旨(polymethyl methacrylate，PMMA) 或適用之材質。另外，為了進一步提升背光模組200 所提供之面光源的均勻性，可於擴散板23〇上方設置擴散 M3 片、稜鏡片或其他光學膜片。 第二實施例 圖5是本創作第二實施例之背光模組的示意圖，而圖 疋匕圖5/支撐件的上視圖。請參照81 5與圖6，本實施例 之背光模組300包括-燈箱31〇、至少—燈源32()(圖$中 繪示多個）、一擴散板330與至少—支撐件34〇。其中，燈 箱310具有一開口 312，且此開口 312暴露出燈箱31〇底 部’而燈源320是配置於燈箱31〇内。擴散板33〇是配置 於燈箱310之開口 312處，而支樓件34〇是抵靠於燈箱训 底部與擴散板330之間。此外’支擇件34()具有與擴散板 接觸的一頂面342，且此頂面342具有一凹陷344。 上述之为光模組300中，支撐件340可包括一第三接 觸部346與一第四接觸部348。其中，第三接觸部346適 於與燈箱310底部接觸，而第四接觸部348是配置於第三 接觸部346上。此外，頂面342是第四接觸部348之一表 面。另外，第三接觸部340與第四接觸部348的材質可為 透明材質或不透明材質。 由於本實施例之支撐件340接觸擴散板330的面積較 大，所以可避免支撐件340施予擴散板330的力量過於集 中而導致擴散板330變形。如此，可改善習知背光模組 100(如圖1所示）之支撐件140容易頂凸擴散板130的缺 點’以提高面光源的均勻性。 值得一提的是，為了避免燈源320所提供的光線無法 自支稽件340與擴散板330接觸的部分入射擴散板330， 12 M3 〇204<0d〇c/g 導致支撐件340與擴散板33〇接觸處形成暗點而影響面光 源之均勻性’本實施例之支撐件可更包括一點光源 349，其配置於支撐件34〇之凹陷344内。此點光源 可為發光二極體，其可提供光線，以改善上述之暗點的情 形，進而提升面光源之均勻性。 圖7是本發明第二實施例之另一種背光模組的示意 圖。請參照圖7,本實施例之背光模組3〇〇a與圖6之背光 模組300相似，其不同處在於支撐件。具體而言，本實施 _ 例之支撐件340a的第三接觸部346a與第四接觸部348a的 材貝為透明材質。此外，與第一實施例之背光模組2〇〇(如 圖3所不）相似，支撐件34〇a之第四接觸部弘％的表面設 置有一光擴散層341。此光擴散層341例如是形成於第四 接觸部348a表面的粗糙結構，其適於使燈源31〇所發出的 部分光線反射，部分光線穿透，且被光擴散層341反射的 光線與穿透光擴散層341的光線會擴散。 有關於光擴散層341的作用原理與第一實施例所述之 光擴散層241(如圖4所示）的作用原理相似，在此將不再重 • 述。此外，在本貫施例中，支撐件34〇a的點光源並非 必要之構件。 綜上所述，本創作之背光模組及液晶顯示面板至少具 有下列優點： / 1·由於本創作之支撐件的表面設置有一光擴散層，其 除了可使自支樓件反射的光線與穿透支撐件的光線擴散了 以避免亮點的產生外，還可使部分光線於支撐件内部反射 13 M3〇204〇.d〇c/g 件與擴散板的接觸處入射擴散板，所以可改善習 口 :丁支撐件與擴反的接觸處容易產生暗點的缺點。 以可避免ΐϋτί之支撐件與擴散板的接觸面積較大，所 變形。寻化予擴散板的力量過於集中而導致擴散板 以 使液3曰·ΐ創!!之背光模組可提供均勻性較佳的面光源， 使液曰日如衣置顯示出的亮度較為均勻的影像。 本_已贿佳實施_露如上，然其 作丄任何熟習此技藝者’在不脫離本創作之精神 二視後二可許之更動與潤飾’因此本創作之保護 圍田視後社巾料利範圍所界定者為準。 【圖式簡單說明】 ” 圖1是習知背光模組的剖面示意圖。 圖2Α是習知背光模組中值撟 之光線的光路如意圖。、、、#遞至非相材質的支樓件 ，2Β是是習知背光模組中傳 之光線的光路徑示意圖。 处月材貝的支撐件 =3是本創作—實施例之背 圖4是本創作一實施例之背光=面不思圖。 光線之光路徑示意圖。 、、中傳遞至支撐件的 :2本創作第二實施例之背光模 圖6疋圖5中支樓件的上視圖。 不心圖 圖。圖疋本毛明弟—貫施例之另—種背光模組的示意 M3 〇20(44}fd〇c/§ 【主要元件符號說明】 100、200、300、300a :背光模組 110、210、310 ··燈箱 112、212、312 :開口 120 :冷陰極螢光燈管 121、122、123、212 :光線 130、230、330 :擴散板 140、240、340、340a ··支撐件 220 ··燈源 241 :光擴散層 242 :第一接觸部 244 :第二接觸部 342 :頂面 344 :凹陷 346、346a ··第三接觸部 348、348a ··第四接觸部 349 :點光源 15= The light diffusing layer on the surface of the material of this creation can not only make = = and the light that penetrates the branch building to spread the light to avoid the bright spot: 'The incident backlight module at the contact between the self-supporting wave and the diffusing plate can provide ===; The contact area between the piece and the diffuser plate is large, so it can be additionally supported to make the above-mentioned one and the other (five) 14L of the creation. Easy to understand, the following special case is better, and the matching == point can be more obvious as follows. _ mouth, the detailed description of M3 〇 2 〇 40 ^ 〇 (embodiment) first embodiment FIG. 3 is a cross-sectional view of the backlight module of the first embodiment of the present creation, and FIG. 4 is the creation The light path of the light transmitted to the support member in the backlight module of the first embodiment. Referring to FIG. 3 and FIG. 4, the backlight module 20A of the present embodiment includes a light box 210 and at least one light source 220 (FIG. 3). A plurality of diffusing plates 230 and at least one supporting member 24 are formed. The light box 21 has an opening 212, and the opening 212 exposes the bottom of the light box 210, and the source 220 is disposed in the light box 21〇. Specifically, the light source 22, for example, is disposed at the bottom of the light box 210. The diffusion plate 23 () is disposed at the opening 212 of the light box 21, and the support member 24 is abutted against the bottom of the light box 21 and the diffusion plate 230. Between the two, the support member is made of a material, and the surface of the support member 240 is provided with a light diffusion layer 241. The light diffusion layer 241 is adapted to be emitted by the light source 21 (). Part of the light ray is reversed, part of the light ray 212 is smashed, and the light reflected by the light diffusion layer 241 is The light of the tooth transparent diffusion layer 241 may diffuse. In the above backlight module 2, the support member 24 may include a second contact portion 244, wherein the first contact portion 242 is adapted to == bottom touch, and The second contact portion is adapted to be in contact with the diffusion plate 230. Further, the first contact portion 244 is connected to the first end of the first 乐 此外 此外 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 230 Shape, but it may be other shapes (4) 244. The above-mentioned 'light diffusion layer 241 is formed on the surface of the cut piece, for example, a surface structure of Vi3 02〇e^(^fd〇c/g. Specifically, the light diffusion layer For example, the surface of the second contact portion 244 is subjected to a sanding or etching process to form a chain structure. Since the surface of the support member 24G of the embodiment is formed with a light diffusion layer 241, a part of the light emitted by the light source 220 ( When the light ray 212 is transmitted to the support member 240, a portion of the light ray 212 is reflected, and the other portion of the light ray 212 passes through the light diffusion layer 241 and enters the inside of the support member 24, wherein the light diffusion layer 241 The reflected light 212 is diffused before entering/distributing the diffusion plate 23, On the other hand, the light 212 passing through the light diffusion layer 241 is also diffused, and the light diffused by j can be divided into two parts, and a part of the light will penetrate the light diffusion layer 241 again and diffuse again. And the person shoots the diffusion plate 23(). Since the light of some of the teeth passing through the support is diffused and the diffusing diffusion plate 23〇, it is difficult to form a shell point. In addition, another part of the light is reflected on the support part. And the diffusion plate 230 is incident from the contact of the support member 240 and the diffusion plate 230, so that no dark spots are generated at the contact of the support member 24'' with the diffusion plate 23Q. Therefore, the surface light source provided by the backlight module 200 of the embodiment has better uniformity. In the present embodiment, the light source 220 is, for example, a cold cathode fluorescent tube, but it may also be other suitable light sources, such as light emitting diodes. In addition, the material of the support member may be transparent acrylic, polycarbonate (C), polymethyl methacrylate (PMMA) or a suitable material. In addition, in order to further improve the uniformity of the surface light source provided by the backlight module 200, a diffusion M3 sheet, a cymbal sheet or other optical film may be disposed above the diffusion plate 23A. SECOND EMBODIMENT Fig. 5 is a schematic view showing a backlight module of a second embodiment of the present invention, and Fig. 5 / a top view of the support member. Referring to FIG. 8 5 and FIG. 6, the backlight module 300 of the present embodiment includes a light box 31A, at least a light source 32() (a plurality of figures are shown in FIG.), a diffusion plate 330 and at least a support member 34. . The light box 310 has an opening 312, and the opening 312 exposes the bottom portion of the light box 31 and the light source 320 is disposed in the light box 31〇. The diffuser plate 33 is disposed at the opening 312 of the light box 310, and the branch member 34 is abutted between the bottom of the light box and the diffuser plate 330. Further, the support member 34() has a top surface 342 that is in contact with the diffuser plate, and the top surface 342 has a recess 344. In the above optical module 300, the support member 340 can include a third contact portion 346 and a fourth contact portion 348. The third contact portion 346 is adapted to be in contact with the bottom of the light box 310, and the fourth contact portion 348 is disposed on the third contact portion 346. Further, the top surface 342 is one of the surfaces of the fourth contact portion 348. In addition, the material of the third contact portion 340 and the fourth contact portion 348 may be a transparent material or an opaque material. Since the area of the support member 340 contacting the diffusion plate 330 of the present embodiment is relatively large, the force of the support member 340 applied to the diffusion plate 330 can be prevented from being excessively concentrated to cause the diffusion plate 330 to be deformed. In this way, the support member 140 of the conventional backlight module 100 (shown in FIG. 1) can be easily slid to the top of the diffuser plate 130 to improve the uniformity of the surface light source. It is worth mentioning that, in order to prevent the light provided by the light source 320 from being incident on the diffusing plate 330 from the portion where the supporting member 340 is in contact with the diffusing plate 330, 12 M3 〇 204 < 0d 〇 c / g leads to the supporting member 340 and the diffusing plate The 〇 contact forms a dark spot to affect the uniformity of the surface light source. The support member of this embodiment may further include a point light source 349 disposed in the recess 344 of the support member 34. The point source can be a light-emitting diode that provides light to improve the above-mentioned dark spots, thereby improving the uniformity of the surface source. Fig. 7 is a schematic view showing another backlight module according to a second embodiment of the present invention. Referring to FIG. 7, the backlight module 3A of the present embodiment is similar to the backlight module 300 of FIG. 6, and the difference lies in the support member. Specifically, the material of the third contact portion 346a and the fourth contact portion 348a of the support member 340a of the present embodiment is a transparent material. Further, similarly to the backlight module 2A of the first embodiment (not shown in Fig. 3), the surface of the fourth contact portion of the support member 34A is provided with a light diffusion layer 341. The light diffusion layer 341 is, for example, a rough structure formed on the surface of the fourth contact portion 348a, and is adapted to reflect part of the light emitted by the light source 31A, partially penetrate the light, and the light reflected by the light diffusion layer 341 is worn. The light of the light-transmitting diffusion layer 341 is diffused. The principle of action of the light diffusing layer 341 is similar to that of the light diffusing layer 241 (shown in Fig. 4) described in the first embodiment, and will not be repeated here. Further, in the present embodiment, the point light source of the support member 34a is not an essential member. In summary, the backlight module and the liquid crystal display panel of the present invention have at least the following advantages: /1·Because the surface of the support member of the present invention is provided with a light diffusion layer, in addition to the light and the reflection of the self-supporting floor member The light passing through the support member is diffused to avoid the occurrence of bright spots, and a part of the light is reflected on the inside of the support member to be incident on the diffusion plate at the contact point of the member and the diffusion plate, so that the light can be improved. Mouth: The shortcomings of the butyl support and the reversal contact are prone to dark spots. The contact area between the support member and the diffusion plate which can avoid ΐϋτί is large and deformed. The power of the homing plate is too concentrated, resulting in a diffusing plate to make the liquid 3 曰 ΐ ! !!! The backlight module can provide a uniform surface light source, so that the liquid 曰 如 衣 显示 显示 显示 显示 显示 显示 显示 显示Image. This _ has been bribed for the implementation of _ as above, but as a person who is familiar with this skill, 'there is no change from the spirit of this creation, the second can be changed and retouched'. Therefore, the protection of this creation is the protection of the field. The scope defined by the scope of interest is subject to change. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view of a conventional backlight module. Fig. 2 is a light path of a light source of a conventional backlight module, as intended, . 2Β is a schematic diagram of the light path of the light transmitted in the conventional backlight module. The support member of the moon material shell=3 is the present creation—the back view of the embodiment is the backlight of the embodiment of the present invention. The light path of the light is transmitted to the support member: 2, the back view of the second embodiment of the present invention, and the top view of the branch member in Fig. 5. The picture is not shown. Another example of a backlight module of the embodiment is M3 〇20(44}fd〇c/§ [Major component symbol description] 100, 200, 300, 300a: backlight modules 110, 210, 310 · · light boxes 112, 212 312: opening 120: cold cathode fluorescent lamp 121, 122, 123, 212: light 130, 230, 330: diffuser 140, 240, 340, 340a · support 220 · light source 241: light diffusing layer 242: first contact portion 244: second contact portion 342: top surface 344: recess 346, 346a · third contact portion 348, 348a · · fourth Contact 349: point source 15