201037409 六、發明說明： 【發明所屬之技術領域】 本發明係有關於一種液晶顯示器，特別是一種具有背光模 組之液晶顯示器。 【先前技術】 液晶顯示器近年來已經成為顯示器的主流，液晶顯示器主 要係以顯示面板作為顯示介面，而顯示面板之光源是由背光模 組中之發光元件所提供。 目前背光模組的固定結構係為彎折設計，以於彎折處形成 一容置空間，且於固定結構的側邊露出有一容置口，發光條 (light bar)係以側向方向通過開口而裝設至固定結構内。為了保 持液晶顯示器的輕薄尺寸，使得固定結構的容置口尺寸受限而 無法没计過大’使得發光條在裝設過程中不易對準組設位置， 以及因容置口尺寸過小而導致發光條組裝不易等問題，且發光 條的電路板必須採用撓性電路板(FlexiWe Printecl Circuit board ’ FPC) ’以便於組裝。 習用之發光條必須藉由一背膠方可穩固的黏附於固定結 構的底板上。為了方便組裝的作業人員進行組配作業，背膠多 半會事先設置在固定結構的底板或是發光條之電路板的背面 上。在固定結構的容置口尺寸過小的情況下，事先設置的背膠 反而造成於組裝時容易沾黏的問題，不但導致作業人員的不 便’亦耗費過多的組裝時間。 201037409 田^光條組配至固定結構後，即接著將反射板(re£^ect〇r)、 導光板(light guide plate)、光學膜等光學零組件設置於發光條 之電路板上，以完成背光模組的組配，而上述的光學零組件係 σ又置於谷置口位置，並且鄰近於發光條的發光源，以確實接收 光源所射出的光線。若是遇到需要更換發光條的情況，必須 先將叹置在容置口的光學零組件拆卸，方可將發光條自固定結 構中卸除，在重工上相當耗時且步驟繁複。 另外’由於習用之發光條與固定結構之間因組配的方便性 而存在有-間距’細此—間距的設計將造成發絲所產生之 熱能不易散除，發光條之熱能僅能從與電路板緊密接觸的底板 傳導於外’導致背光模組的整體散熱效率不佳。為了改善背光 模組的散熱問題，目前的做法有二：其—是於底板對應於發光 ir、的位置貼叹導熱膠，其二是使用導熱性較佳的硬質電路板做 為發光條的1路域體。上述二種做法雖可改善背光模組之散 熱性不佳的_ ’但卻也使得背光模_整體厚度相對增加， 並不符合目前液晶顯示器必須輕薄的要求。 【發明内容】 鑒於以上的問題，本發明提供一種液晶顯示器與背光模組 及其組裝方法’藉以改良習用背光模組之組裳步驟複雜且過於 耗時’以及制背光模朗散熱效率不佳等問題。 “本發明所揭露之背光模組包括有固定結構及導光板。背光 模組之固定結構包括有一框架及一發光條，框架具有—底板， 5 201037409 於底板上突設有至少一結合件。結合件相對於底板的一側具有 —容置口，且結合件内部具有與容置口相連通的收容空間，並 且結合件的側壁上具有貫穿之至少一開口，係與收容空間相連 通。發光條具有一電路板，及電性設置於電路板一側面上的至 少一發光源。電路板通過結合件的容置口而夾置於收容空間 内，並令發光源設置於結合件的開口位置。導光板係設置於底 板上’並且鄰近於發光源，以構成本發明的背光模組。於導光 板上設置一液晶顯示面板即構成液晶顯示器。 本發明之背光模組之組裝方法，其步驟首先係提供一框 架，並於框架的底板上形成一結合件，結合件相對於底板之一 側具有容置口，結合件内部具有與容置口相連通的收容空間， 於名。合件的側壁上貫穿設置有至少一開口，且開口與收容空間 相連通。接著’提供一發光條，此一發光條具有電路板及電性 設置於電路板一側面上的至少一發光源。將發光條的電路板沿 著第一方向通過容置口而夾置於結合件内，並令發光源設置於 開口位置，且第一方向係與底板相互垂直。最後，設置一導光 板於底板上，且導光板係鄰近於發光源。 本發明之背光模組的發光條係由下方直接裝設至框架的 釔&件内，因而可大幅減少組裝時間，提高生產效率。當發光 條需要更鱗，僅須由框架下方的容置吨抑發光條，並不 會對已設置於框架上的光學零組件造成影響，重玉容易。另 外，發光條之電路板的前後側面分別被結合件夾持固定，發光 201037409 條的散熱接觸面積增加，以提高背光模組的散熱效能，並且增 加發光源的使用壽命。 以上之關於本發明内容之說明及以下之實施方式之說明 係用以示範與解釋本發明之原理，並且提供本發明之專利申請 範圍更進一步之解釋。 【實施方式】 本發明之背光模組係應用於液晶顯示器的前框或是背 框，以下將以本發明之背光模組應用於筆記型電腦之液晶顯示 益的背框做為本發明實施例之說明，但並不以此為限。 士弟1圖」至「第3圖」所示，本發明之背光模組的固 疋'、。構包括有一框架110及一發光條120(light-bar)。框架11〇 /、有底板111，於底板ill的上表面突設有至少一結合件 112，此一結合件112可依據背光源的使用數量而對應設置， 亚不以本實施例所揭露的數量為限，且本發明的框架丨〗〇的材 質為鋼材，而熟悉此項技術者亦可選用適合的合金材質或是塑 膠材質，並不以此為限。結合件112係由一第一侧邊1121、 一頂邊1122、及一第二侧邊1123所構成的結構，第一侧邊1121 的一端係與底板ill相連接，第一側邊1121的另一端與頂邊 1122的一端相連接’且頂邊1122與第一側邊1121係呈相互垂 直的關係，頂邊1122的另—端係與第二側邊1123的一端相連 接’且第二側邊1123與頂邊1122係呈相互垂直賴係，第二 側邊1123與第-側邊1121係相互平行，並因頂邊lm的連 201037409 接而間隔設置。 結合件112因第一侧邊U2〗、頂邊1122、及第二側邊 的相對連接關係，而於結合件112的底側(即結合件112相對 於底板in的一側)形成一容置口 113，並於結合件112内部形 成與容置口 113相連通的收容空間114。另外，於結合件 的第一側邊1121上開設有貫穿的至少一開口 U5，使得開口 115與收容空間114相連通。本發明的開口 115係依據實際使 用需求而增加或減少其配置數量，並不以本實施例所揭露的數 置為限。本發明的開口 115可採用沖壓、切割、或銑削等機械 加工方式形成，但並不以此為限。並且，第一側邊112〗對應 於開口 115的被加工板材向上彎折後即形成遮光片1124,如 此一來，遮光片1124的位置鄰近於開口 115。 請繼續參閱「第1圖」至「第3圖」，本發明的發光條12〇 具有-電路板U1及至少—發光源m，且發光源US係電性 連接並設置於電路板121的—側面上。本發明所使用的電路板 121為銅-玻璃纖維,(Cu_FR4_Cu)的硬質電路板，於發光條 120組裝於結合件112中的結合效果較為理想，然而熟悉此項 技術者，亦可採用軟性或撓性電路板(如触时遍 board ’ FPC) ’並不以此為限。發光條12〇由框架11〇的下方 裝投至結合件m内’發光條120的電路板121通過結合件 112底部的谷置口 113而進入結合件112内部，且電路板⑵ 的厚度與結合件1 i 2之第—側邊i i 2 i及第二侧邊i i 2 3之間的 201037409 間距相等，因此電路板121受到第一側邊1121與第二侧邊丨l23 的夹持作用而穩固地夾置於收容空間114内。設置於電路板 121上的發光源122亦隨著電路板121而裝設至結合件 内，發光源122係設置於第一侧邊1121的開口 115位置，並 且路出於外，以使發光源122所發射的光線可投射至外部。 值得注意的是，由於發光源122係設置於結合件112的開 口 115位置，因此發光源122的數量必須與開口 115數量相同 或是少於開口 115數量，發光源122才可順利的裝設於開口 115内。另外，本發明的發光源122係為發光二極體 Eimtting Diode，LED)，且本發明的發光源122係使用上發光 型(t〇p-view)發光二極體，以配合本發明之發光條12〇裝設於 結合件112内的結合關係’使發光源122順利地發射光線至預 設位置。然，發光源122亦可選用燈泡等發光體，並不以本實 施例為限。 請參閱「第4圖」所示之分解示意圖，本發明的背光模組 1〇〇包括有固定結構、反射板(reflector)130、導光板(lightguide plate)140、及複數層光學膜150，而本發明的液晶顯示器2〇〇 係由背光模組100、液晶顯示面板、及多個光學零組件(圖 中未示)所組成，本案的技術特徵在於背光模組1〇〇及其固定 結構，故申請人不在此多加贅述液晶顯示器2〇〇之光學組成。 本發明的者光核組100之發光條12〇係由框架11 〇的下方 裝设至結合件112内，發光條120的電路板121通過結合件 9 201037409 112底部的谷置口 113而進入結合件I〗〗内部，並且炎置於收 容空間114内。设置於電路板121上的發光源122亦隨著電路 板121而裝設至結合件112内，發光源122係設置於第一側邊 1121的開口 115位置，並且露出於外。反射板丨3〇設置於框 架110的底板111上’並且鄰近於發光源122，導光板14〇設 置於反射板130上’光學膜150設置於導光板14〇上。另外， 更可於電路板121的背面(電路板121面對第二側邊1123的側 面)加設一導熱膠(圖中未示）’以使發光條12〇所產生的熱能可 更快速的自第二侧邊1123散除，藉以提高散熱效率。 如「第4圖」至「第7圖」所示，液晶顯示面板16〇裝設 於背光模組100的光學膜150上，再以一外框no組裝於最外 側並予以固定，以構成一液晶顯示器200。發光源122所射出 之光線進入導光板140 ’藉由導光板140的引導及反射板130 的折射而射入光學膜150 ’以提供一光源至液晶顯示面板16〇 的背面。201037409 VI. Description of the Invention: [Technical Field] The present invention relates to a liquid crystal display, and more particularly to a liquid crystal display having a backlight module. [Prior Art] Liquid crystal displays have become the mainstream of displays in recent years. Liquid crystal displays mainly use a display panel as a display interface, and the light source of the display panel is provided by a light-emitting element in a backlight module. At present, the fixing structure of the backlight module is a bent design to form an accommodating space at the bending portion, and a receiving opening is exposed at a side of the fixing structure, and the light bar passes through the opening in a lateral direction. And installed into the fixed structure. In order to maintain the thin and light size of the liquid crystal display, the size of the receiving port of the fixed structure is limited and cannot be oversized, so that the light bar is not easily aligned with the assembled position during the installation process, and the light bar is caused by the size of the receiving port being too small. The assembly is not easy, and the circuit board of the light bar must use a flexible circuit board (FlexiWe Printecl Circuit board 'FPC)' to facilitate assembly. Conventional illuminating strips must be firmly adhered to the bottom plate of the fixed structure by means of a backing. In order to facilitate assembly work, the adhesive is usually placed on the back of the fixed structure or the back of the circuit board of the light strip. In the case where the size of the accommodating port of the fixed structure is too small, the previously provided squeegee causes a problem of easy adhesion during assembly, which not only causes inconvenience to the operator but also consumes excessive assembly time. 201037409 After the field light strip assembly is assigned to the fixed structure, the optical components such as a reflector (light), a light guide plate, and an optical film are then disposed on the circuit board of the light strip. The assembly of the backlight module is completed, and the optical component σ is placed in the valley position and adjacent to the light source of the light bar to receive the light emitted by the light source. If it is necessary to replace the light-emitting strip, the optical components that are placed at the accommodating port must be disassembled before the light-emitting strip can be removed from the fixed structure, which is time-consuming and complicated in heavy work. In addition, due to the convenience of assembly between the conventional light-emitting strip and the fixed structure, there is a - spacing 'fine'--the spacing design will cause the heat generated by the hair to be easily dissipated, and the heat energy of the light strip can only be The substrate that is in close contact with the board is conducted outside, which results in poor overall heat dissipation efficiency of the backlight module. In order to improve the heat dissipation problem of the backlight module, there are two current methods: it is to sigh the thermal conductive adhesive at the position of the bottom plate corresponding to the light emitting ir, and the second is to use the hard circuit board with better thermal conductivity as the light emitting strip. Road body. Although the above two methods can improve the heat dissipation of the backlight module, the thickness of the backlight module is relatively increased, which does not meet the requirements of the current thinness of the liquid crystal display. SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a liquid crystal display and a backlight module and an assembly method thereof, which are used to improve the conventional backlight module, which is complicated and time consuming, and the heat dissipation efficiency of the backlight module is poor. problem. The backlight module disclosed in the present invention comprises a fixed structure and a light guide plate. The fixed structure of the backlight module comprises a frame and a light strip, the frame has a bottom plate, and 5 201037409 has at least one joint protruding from the bottom plate. The housing has a receiving opening with respect to one side of the bottom plate, and the receiving member has a receiving space communicating with the receiving opening, and the side wall of the connecting member has at least one opening therethrough, which communicates with the receiving space. The device has a circuit board and at least one light source electrically disposed on one side of the circuit board. The circuit board is sandwiched in the receiving space through the receiving opening of the connecting member, and the light source is disposed at the opening position of the connecting member. The light guide plate is disposed on the bottom plate and adjacent to the light source to form the backlight module of the present invention. A liquid crystal display panel is disposed on the light guide plate to form a liquid crystal display. The assembly method of the backlight module of the present invention first steps Providing a frame and forming a joint on the bottom plate of the frame, the joint member having a receiving opening with respect to one side of the bottom plate, and the inner portion of the joint member The accommodating space communicating with the accommodating port has at least one opening penetrating through the side wall of the fitting, and the opening is in communication with the accommodating space. Then, a illuminating strip is provided, the illuminating strip has a circuit board and electrical properties. At least one light source disposed on one side of the circuit board. The circuit board of the light strip is placed in the joint through the receiving port along the first direction, and the light source is disposed at the opening position, and the first direction is The bottom plate is perpendicular to the bottom plate. Finally, a light guide plate is disposed on the bottom plate, and the light guide plate is adjacent to the light source. The light bar of the backlight module of the present invention is directly installed from the bottom to the frame of the frame, thereby Significantly reduce assembly time and increase production efficiency. When the illuminating strip needs to be more squashed, it only needs to accommodate the illuminating strip under the frame, and it will not affect the optical components already installed on the frame, and the weight is easy. The front and back sides of the circuit board of the light-emitting strip are respectively clamped and fixed by the bonding member, and the heat-dissipating contact area of the light-emitting layer 201037409 is increased to improve the heat-dissipating efficiency of the backlight module, and the hair is increased. The description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the principles of the present invention, and to provide further explanation of the scope of the patent application of the present invention. The backlight module is applied to the front frame or the back frame of the liquid crystal display. The backlight module of the present invention is applied to the back frame of the liquid crystal display of the notebook computer as an illustration of the embodiment of the present invention, but This is limited to the following. From the "1" to "3", the backlight module of the present invention is fixed. The structure includes a frame 110 and a light-bar. The frame 11〇/ has a bottom plate 111, and at least one joint member 112 is protruded from the upper surface of the bottom plate ill. The joint member 112 can be correspondingly arranged according to the number of uses of the backlight, and the number is not disclosed in the embodiment. The material of the frame of the present invention is steel, and those skilled in the art may also use suitable alloy materials or plastic materials, and are not limited thereto. The joint member 112 is composed of a first side 1121, a top side 1122, and a second side 1123. One end of the first side 1121 is connected to the bottom plate ill, and the first side 1121 is another. One end is connected to one end of the top edge 1122' and the top edge 1122 and the first side edge 1121 are in a mutually perpendicular relationship, and the other end of the top edge 1122 is connected to one end of the second side 1123' and the second side The side 1123 and the top side 1122 are perpendicular to each other, and the second side 1123 and the first side 1121 are parallel to each other, and are arranged at intervals by the connection of the top edge lm 201037409. The coupling member 112 forms an accommodation on the bottom side of the coupling member 112 (ie, the side of the coupling member 112 relative to the bottom plate in) due to the relative connection relationship between the first side U2, the top edge 1122, and the second side. The port 113 has a receiving space 114 that communicates with the receiving opening 113 inside the coupling member 112. In addition, at least one opening U5 penetrating is formed in the first side 1121 of the coupling member, so that the opening 115 communicates with the receiving space 114. The opening 115 of the present invention is increased or decreased according to the actual use requirement, and is not limited to the number disclosed in the embodiment. The opening 115 of the present invention may be formed by mechanical processing such as stamping, cutting, or milling, but is not limited thereto. Moreover, the first side edge 112 defines a light shielding sheet 1124 corresponding to the sheet to be processed corresponding to the opening 115, and thus, the light shielding sheet 1124 is positioned adjacent to the opening 115. Continuing to refer to "1" to "3", the light strip 12 of the present invention has a circuit board U1 and at least a light source m, and the light source US is electrically connected and disposed on the circuit board 121. On the side. The circuit board 121 used in the present invention is a copper-glass fiber, (Cu_FR4_Cu) hard circuit board, and the bonding effect of the light-emitting strip 120 assembled in the bonding member 112 is ideal. However, those skilled in the art may also adopt softness or Flexible circuit boards (such as time-over board 'FPC)' are not limited to this. The light-emitting strip 12 is loaded into the joint member m by the lower portion of the frame 11A. The circuit board 121 of the light-emitting strip 120 enters the inside of the joint member 112 through the valley opening 113 at the bottom of the joint member 112, and the thickness of the circuit board (2) is combined with The 201037409 spacing between the first side ii 2 i and the second side ii 2 3 of the piece 1 i 2 is equal, so the circuit board 121 is stabilized by the clamping action of the first side 1121 and the second side 丨l23. The ground clip is placed in the accommodating space 114. The illumination source 122 disposed on the circuit board 121 is also mounted in the bonding component along with the circuit board 121. The illumination source 122 is disposed at the opening 115 of the first side 1121, and the road is out of the way to enable the illumination source. The light emitted by 122 can be projected to the outside. It should be noted that since the illumination source 122 is disposed at the position of the opening 115 of the bonding member 112, the number of the illumination sources 122 must be the same as or smaller than the number of the openings 115, and the illumination source 122 can be smoothly installed. Inside the opening 115. In addition, the light source 122 of the present invention is a light emitting diode (Eimtting Diode, LED), and the light source 122 of the present invention uses an upper light emitting type (t〇p-view) light emitting diode to match the light emitting of the present invention. The bonding relationship of the strips 12 in the bonding member 112 enables the illumination source 122 to smoothly emit light to a preset position. However, the illuminating source 122 may also be an illuminant such as a bulb, and is not limited to the embodiment. Referring to the exploded view shown in FIG. 4, the backlight module 1 of the present invention includes a fixed structure, a reflector 130, a light guide plate 140, and a plurality of optical films 150. The liquid crystal display 2 of the present invention is composed of a backlight module 100, a liquid crystal display panel, and a plurality of optical components (not shown). The technical feature of the present invention is a backlight module 1 and a fixed structure thereof. Therefore, the applicant does not add to the optical composition of the liquid crystal display. The light-emitting strip 12 of the photon group 100 of the present invention is installed in the joint member 112 from the lower side of the frame 11 ,, and the circuit board 121 of the light-emitting strip 120 enters the joint through the valley opening 113 at the bottom of the joint member 9 201037409 112. The piece I is inside, and the inflammation is placed in the accommodating space 114. The illumination source 122 disposed on the circuit board 121 is also mounted in the bonding member 112 along with the circuit board 121. The illumination source 122 is disposed at the opening 115 of the first side 1121 and exposed. The reflector 丨3〇 is disposed on the bottom plate 111 of the frame 110 and adjacent to the illuminating source 122, and the light guide plate 14 is disposed on the reflecting plate 130. The optical film 150 is disposed on the light guiding plate 14A. In addition, a thermal conductive adhesive (not shown) may be added on the back surface of the circuit board 121 (the side of the circuit board 121 facing the second side 1123) to make the heat generated by the light strip 12〇 faster. The second side 1123 is dispersed to improve heat dissipation efficiency. As shown in FIG. 4 to FIG. 7, the liquid crystal display panel 16 is mounted on the optical film 150 of the backlight module 100, and is assembled on the outermost side with an outer frame no and fixed to form a Liquid crystal display 200. The light emitted from the light source 122 enters the light guide plate 140' and is incident on the optical film 150' by the guidance of the light guide plate 140 and the refraction of the reflection plate 130 to provide a light source to the back surface of the liquid crystal display panel 16A.
U 請繼續參閱「第4圖」至「第7圖」，並配合「第8A圖」 及「第8B圖」的步驟流程圖，本發明所揭露之背光模組的組 裝方法，其步驟首先係提供一框架110(步驟300)，接著形成至 少一結合件112於椎架110之底板111上(步驟310)。其中， 結合件112的成形步驟包括有：框架110之底板ill朝向垂直 於底板111的第一方向彎折形成一第一側邊1121(步驟311)， 接著由第一側邊1121連接於底板ηι的另一端朝向一第二方 10 201037409 向彎折形成一頂邊1122(步驟312)，此第二方向係與第一方向 相互垂直(即第二方向係與底板U1相互平行），最後由了貝邊 1122連接於第—側邊mi的另—端朝向相反於第—方向之方 向彎折形成-第二側邊1123(步驟313)。由上述步驟形成本發 明之結合件112，且結合件n2的第—側邊1121與第二側邊 1123係相㈣並且間隔設置，以於結合件112内部形成收容 空間114及與收容空間114相連通的容置口 113。 接著提供一發光條120(步驟320)，發光條12〇具有電路 板121及電性設置於電路板121侧面上的發光源122。電路板 121沿著垂直於底板m的第一方向(由底板U1的下方進行裴 設)通過容置口 113而夾置於收容空間114内(步驟33〇)。設置 一反射板130於框架110的底板U1上(步驟34〇)，接著設置 導光板140於反射板13〇上方(步驟35〇)，最後設置複數層光 學膜150於導光板140相對於底板111之另-側面上(步驟 360) ’即完成本發明之背光模組的組裝步驟。 本發明所揭政之背光模組’其發光條係由下方直接裝設至 框架的結合件内，組裝快速，並可提高生產效能。並且，當需 要替換發光條時’操作人員可直接由框架的下方將發光條抽取 出來，並不影響框架上的光學零組件，重工容易。 另外，由於發光條之電路板的前後側面分別被結合件夾持 固定，發光條的散熱接觸面積增加，因此發光條之發光源所產 生的熱能得以快速散除，進而提高發光源的使用壽命。 11 201037409 雖然本發明讀_揭露如上魏，縫_崎定本發 明，任何熟習相關技藝者，在不脫離本發明之精神和範圍内: 舉凡依本發明申魏騎述之形狀、構造、特徵及精神當可做 些許之變更，因此本發明之專利保魏圍須視本說明書所附之 申請專利範圍所界定者為準。 【圖式簡單說明】 第1圖為本發明背光模組之固定結構之分解示意圖； 第2圖為本發明背光模組之固定結構之組合示意圖； 第3圖為本發明之框架之剖面側視圖； 第4圖為本發明液晶顯示器之分解示意圖； 第5圖為本發明液晶顯示器之分解示意圖； 第6圖為本發明液晶顯示器之組合示意圖； 第7圖為本發明液晶顯示器之剖面側視圖； 第8A圖為本發明之背光模組之組裝方法步驟示意圖·以及 第8B圖為本發明之結合件之形成步驟示意圖。 【主要元件符號說明】 100 背光模組 110 框架 111 底板 112 結合件 1121 第一側邊 1122 頂邊 12 201037409 1123 第二侧邊 1124 遮光片 113 容置口 114 收容空間 115 開口 120 發光條 121 電路板 Ο 122 發光源 130 反射板 140 導光板 150 光學膜 160 液晶減不面板 170 外框 200 液晶顯不裔 ❹ 步驟300 提供一框架 步驟310 形成一結合件於框架之底板上 步驟311 由框架之底板朝向第一方向彎折形成第一侧邊 步驟312 由第一侧邊連接於底板之另一端朝向第二方向 彎折形成頂邊 步驟313 由頂邊連接於第一侧邊之另一端朝向相反於第 一方向之方向彎折形成第二側邊 步驟320 提供一發光條 13 201037409 步驟330 將電路板沿著第一方向通過容置口而夾置於收 容空間内 步驟340 設置一反射板於框架的底板上 步驟350 設置一導光板於反射板上 步驟360 設置複數層光學膜於導光板相對於底板之另一 侧面上 14U Please continue to refer to "Figure 4" to "Figure 7", and in conjunction with the flowcharts of "8A" and "8B", the assembly method of the backlight module disclosed in the present invention is firstly followed. A frame 110 is provided (step 300), and then at least one bond 112 is formed on the bottom plate 111 of the vertebral frame 110 (step 310). The forming step of the bonding member 112 includes: the bottom plate ill of the frame 110 is bent toward a first direction perpendicular to the bottom plate 111 to form a first side edge 1121 (step 311), and then connected to the bottom plate ηι by the first side edge 1121. The other end is bent toward a second side 10 201037409 to form a top edge 1122 (step 312), the second direction is perpendicular to the first direction (ie, the second direction is parallel to the bottom plate U1), and finally The bead 1122 is connected to the other end of the first side mi to be bent in a direction opposite to the first direction to form a second side 1123 (step 313). The joint member 112 of the present invention is formed by the above steps, and the first side 1121 of the joint member n2 and the second side 1123 are phased (four) and spaced apart to form a receiving space 114 inside the joint member 112 and connected to the receiving space 114. Passing through port 113. Next, a light strip 120 is provided (step 320). The light strip 12 has a circuit board 121 and a light source 122 electrically disposed on a side of the circuit board 121. The circuit board 121 is sandwiched in the accommodating space 114 through the accommodating port 113 in a first direction perpendicular to the bottom plate m (which is disposed below the bottom plate U1) (step 33A). A reflective plate 130 is disposed on the bottom plate U1 of the frame 110 (step 34A), then the light guide plate 140 is disposed above the reflective plate 13A (step 35A), and finally a plurality of optical films 150 are disposed on the light guide plate 140 relative to the bottom plate 111. On the other side (step 360), the assembly steps of the backlight module of the present invention are completed. The backlight module of the invention has a light-emitting strip that is directly mounted into the joint of the frame from below, and is assembled quickly, and the production efficiency can be improved. Moreover, when it is necessary to replace the illuminating strip, the operator can directly extract the illuminating strip from the bottom of the frame without affecting the optical components on the frame, and the rework is easy. In addition, since the front and rear sides of the circuit board of the light-emitting strip are respectively clamped and fixed by the bonding member, the heat-dissipating contact area of the light-emitting strip is increased, so that the heat energy generated by the light-emitting source of the light-emitting strip can be quickly dissipated, thereby improving the service life of the light-emitting source. 11 201037409 Although the present invention is read as disclosed above, the present invention may be made without departing from the spirit and scope of the present invention: the shape, structure, features and spirit of the Shen Wei riding according to the present invention. In the event that a change may be made, the patent of the present invention is defined by the scope of the patent application attached to the specification. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a fixing structure of a backlight module of the present invention; FIG. 2 is a schematic sectional view showing a fixing structure of a backlight module of the present invention; 4 is an exploded perspective view of a liquid crystal display according to the present invention; FIG. 5 is an exploded perspective view of the liquid crystal display of the present invention; FIG. 6 is a schematic cross-sectional view of the liquid crystal display of the present invention; 8A is a schematic view showing the steps of assembling the backlight module of the present invention, and FIG. 8B is a schematic view showing the steps of forming the bonding member of the present invention. [Main component symbol description] 100 backlight module 110 frame 111 bottom plate 112 joint member 1121 first side 1122 top side 12 201037409 1123 second side 1124 light shield 113 receiving port 114 receiving space 115 opening 120 light strip 121 circuit board Ο 122 light source 130 reflector 140 light guide 150 optical film 160 liquid crystal minus panel 170 outer frame 200 liquid crystal display ❹ step 300 provides a frame step 310 to form a joint on the bottom plate of the frame step 311 from the bottom of the frame The first direction is bent to form a first side step 312. The first side is connected to the other end of the bottom plate and bent toward the second direction to form a top edge. Step 313 is connected to the other side of the first side by the top edge. The direction of the direction of the direction of the second side of the step 320 is provided to provide a light strip 13 201037409. Step 330: The board is placed in the accommodating space through the accommodating port along the first direction. Step 340 is provided with a reflector on the bottom plate of the frame. Step 350: setting a light guide plate on the reflective plate, step 360, setting a plurality of optical films on the light guide plate For another side surface of the base plate 14