^423844 五、新型說明： 【新型所屬之技術領域】 [0001] 本創作係有關於一種背光模組及包含該背光模組之液晶 顯示裝置，尤指一種側光式（edge lighting)背光模組 及包含該背光模組之液晶顯示裝置。 【先前技術】 [0002] 配合參閱第一圖，為習知之背光模組之剖視圖。該背光 模組50包含一導光板52、一電路板54、一發光元件56、 一反射片58及至少一膠材60，該導光板52包含一入光面 522，該發光元件56設置於該電路板54並朝向該入光面 522發出光線，且較佳地，該等發光元件56係通過焊接製 程以設置於該電路板54，該反射片58鄰接於該導光板52 之一底表面524 ’其中該底表面524鄰接於該入光面522 。該膠材60設置於該導光板52、該電路板54及該反射片 58之間，用以結合該導光板52、該電路板54及該反射片 58，如此一來’可以避免該導光板52、該電路板54及該 反射片58脫落而導致該背光模組50無法正常運作的情形 產生。 [0003] 然而，結合該導光板52、該電路板54及該反射片58之該 膠材60係吸收該發光元件56發出的部分光線，造成光能 量的耗損，並且，假若該背光模組50需要重工時，容易 造成設置於該電路板54上之該發光元件56損毀。 【新型内容】 [0004] 鑒於先前技術所述，本創作之一目的，在於提供一種背 光模組，該背光模組可以有效地避免入光處光耗損現象 表單編號A0101 第4頁/共22頁 產生並避免重工時發光元件損壞，以及發光元件與導光 板對位不佳而產生之入光不均勻、膠材黏貼力量影響出 光均勻度之問題。 [0005] 本創作之另一目的，在於提供一種具有上述背光模組之 液晶顯示裝置，該液晶顯示裝置可以有效地避免入光處 光耗損現象產生並避免背光模組重工時發光元件損壞， 以及發光元件與導光板對位不佳而產生之入光不均勻、 膠材黏貼力量影響出光均勻度之問題。 [0006] 為達上述目的，本創作提供一種背光模組，該背光模組 包Ί—導光板、一發光單元、一反射片、一結合件及一 第一黏著件，該導光板包含一第一端部、一相反於該第 一端部之第二端部及一底表面，該底表面鄰接該第一端 部及該第二端部；該發光單元位於該第一端部，該發光 單元包含一電路板及至少一設置於該電路板之發光元件 ;該反射片鄰接於該底表面，該反射片由該第二端部朝 向該第一端部延伸並抵接於該電路板；該結合件結合該 電路板及該反射片；該第一黏著件設置於該第二端部並 結合該底表面及該反射片。 [0007] 根據本創作的一具體實施例，其中該反射片係通過該結 合件抵接於該電路板。 [0008] 根據本創作的一具體實施例，其中該結合件設置於該電 路板及該反射片下方。 [0009] 根據本創作的一具體實施例，其中該第一端部包含一入 光面，該發光元件位於該入光面，該第二端部包含一後 表單編號A0101 第5頁/共22頁 M423844 端面，該底表面鄰接該入光面及該後端面。 [0010] 根據本創作的一具體實施例，其中該結合件為單面膠、 雙面膠或膠水。 [0011] 根據本創作的一具體實施例，其中該發光元件為側射式 發光二極體或面射式發光二極體。 [0012] 根據本創作的一具體實施例，其中該電路板為軟性電路 板。 [0013] 根據本創作的一具體實施例，其中該導光板包含一可視 區及一相鄰於該可視區之不可視區，該第一黏著件設置 於該不可視區。 [0014] 根據本創作的一具體實施例，該背光模組更包含一支撐 座，該反射片係設置於該支撐座上。 [0015] 根據本創作的一具體實施例，該背光模組更包含一第二 黏著件，設置於該第二端部並結合該反射片及該支撐座 〇 [0016] 根據本創作的一具體實施例，其中該第二黏著件大致對 齊於該第一黏著件設置。 [0017] 根據本創作的一具體實施例，該背光模組更包含至少一 光學膜，設置於該導光板上方。 [0018] 本創作更提供一種液晶顯示裝置，該液晶顯示裝置包含 一如上述之背光模組以及一液晶顯示層，該液晶顯示層 設置於該背光模組上方。 [0019] 本創作之背光模組之該結合件係結合該發光單元之該電 表單編號A0101 第6頁/共22頁 路板及該反射件，該第一黏著件設置於該第二端部並結 合該導光板及該反射片，如此一來，不但可以有效地結 合該發光單元、該導光板及該反射片，並可以避免該結 合件吸收該發光元件發出之部分光線而導致光耗損的現 象產生'重工時發光元件損壞，以及發光元件與導光板 對位不佳而產生之入光不均勻、膠材黏貼力量影響出光 均句度之問題。 【實施方式】 [0020] 配合參閱第二圖及第三圖’第二圖為本創作第一實施例 之背光模組之俯視圖，第三圖為本創作第一實施例之背 光模組之剖視圖及局部放大圖。該背光模組1〇包含一導 光板12、一發光單元14、一反射片16、一結合件18及一 第一黏著件20。 [0021] 該導光板12大致呈矩形並具有一第一端部12〇、一第二端 部122及一底表面124，該第二端部122相反於該第一端 部120，該底表面1.24鄰接該第一端部120及該第二端部 122。該第一端部120包含一入光面121，該第土端部122 包含一後端面123，該底表面124鄰接該入光面121及該 後端面123。 [0022] 該導光板12更包含一可視區126及一非可視區128，該非 可視區128相鄰於該可視區126，該底表面124於對應該 可視區126處設置有複數之導光微結構127，但不以此為 限，例如也可於出光面125設置導光微結構127，其中出 光面125相反於該底表面124並鄰接該入光面121及該後 端面123 ;並且，該等導光微結構127的設置密度係與其 表單編號A0101 第7頁/共22頁 M423844 距離光源的遠近成正比，亦即距離光源愈遠，導光微結 構127密度愈密。或者，距離光源愈遠，導光微結構127 深度愈深。該等導光微結構127可以為透過蝕刻、雷射或 CNC製作之各種疏密、大小不一的微透鏡（micro lens) 結構，或者為透過網點印刷形成之各種疏密、大小不一 的導光油墨。由該入光面121入射之光線，經由該等導光 微結構127引導，使光線於該導光板12内部進行折射及反 射，再由該導光板12之出光面125出光》該導光板12係使 用透光材質製成，如：聚甲基丙烯酸曱脂（PMMA)、合成 樹脂、丙烯（acryl)、聚碳酸酯（PC)、聚酯（PET)、聚 稀烴（Polyolefines)或玻璃。 [0023] 該發光單元14位於該第一端部120，該發光單元14包含一 電路板140及至少一發光元件142，該電路板140預先形 成複數之電路佈線（圖未示）及焊墊（圖未示），其中，該 電路板140可以為印刷電路板（printed circuit board，PCB)或軟性電路板（flexible printed circuit board， FPC)。 該發光元件 142 設置於該電路板 140並電連接該電路板140，且較佳地，該發光元件142 通過焊接製程設置於該電路板140並與該電路板140形成 電性連接；該發光元件142設置鄰近於該入光面121並朝 向該入光面121發出光線，該發光元件142較佳地為發光 二極體，且可以為側射式發光二極體或面射式發光二極 體，於本實施例中，該發光元件142以側射式發光二極體 為例說明，且側射式發光二極體之發光面係面對該入光 面121。該發光元件142的數量可以為一個或多個，於本 實施例中’該發光元件142以十個為例說明。 表單編號 A0101 ^ q s/u 〇〇 s [0024] 該反射片16鄰接於該導光板12之該底表面124，該反射片 16可例如為金屬片或塗佈有樹脂材料之膠料之麥拉片 (PET)或其他塑膠片，且可呈白色或銀色等具有較佳反射 效果之顏色，於實際實施，可依實際需求或限制加以調 整反射片16之顏色。該反射片16係通過該結合件18抵接 於該電路板140，該結合件18結合該反射片16及該電路板 140。如此一來，可以避免該反射片16及該電路板140因 受力擠壓而脫落，以及重新組裝時，造成該發光元件損 壞142。該發光元件142及該導光板12也可以準確地對位 ，使光線能均勻地進入導光板12 ;再者，可以避免該結 合件18吸收光線而產生光耗損，以及結合件18的黏貼力 量導致出光不均勻的情形產生。該結合件18可以為雙面 膠、膠水或單面膠，且較佳地呈透明狀，其中單面膠可 分別地結合該電路板140及該反射片16，之後再通過膠水 或雙面膠結合上述之二單面膠。 [0025] 該第一黏著件20設置於該第二端部122並結合該導光板12 及該反射片16，且較佳地，該第一黏著件20設置於該非 可視區128，用以降低該第一黏著件20吸收通過該導光板 12的光線而致使該背光模組10產生光耗損；該第一黏著 件20較佳地可以為雙面膠或膠水，且該第一黏著件20的 寬度較佳地為1~2毫米（millimeter)。 [0026] 該背光模組10更包含一支撐座22，該支撐座22較佳地為 金屬材料，如鋁合金或鐵，該支撐座22設置於該反射片 16下方，用以支撐該導光板12、該發光單元14及該反射 片16。復參閱第三圖，該支撐座22及該反射片16之間更 表單編號A0101 第9頁/共22頁 M423844 可以包含一第二尜著件24，該第二黏著件24設置於該第 二端部122並結合該支撐座22及該反射片16，且該第二黏 著件24的設置位置大致對齊該第一黏著件2〇。 [0027] 該背光模組10更可以包含至少一光學膜26，設置於該導 光板12之該出光面125，用以提升該背光模組10的輝度等 光學特性。該光學膜26可例如為擴散膜，用以擴散光線 ，或者該光學膜26可以為增光膜，用以將光線聚集地出 光，使光線收斂在使用者的觀看方向（亦即正視角聚光） ，或者該光學膜26可以為複合型光學膜，可以同時提供 光擴散及聚光的功能。此外，該光學膜26的數量可以為 一個或多個’於本實施例中，該光學膜26的數量以四個 為例’且較佳地由上而下依序為一增亮膜（Brightness^423844 V. New Description: [New Technology Field] [0001] The present invention relates to a backlight module and a liquid crystal display device including the same, especially an edge lighting backlight module. And a liquid crystal display device including the backlight module. [Prior Art] [0002] Referring to the first figure, it is a cross-sectional view of a conventional backlight module. The backlight module 50 includes a light guide plate 52, a circuit board 54, a light-emitting element 56, a reflective sheet 58 and at least one adhesive material 60. The light guide plate 52 includes a light-incident surface 522. The circuit board 54 emits light toward the light incident surface 522. Preferably, the light emitting elements 56 are disposed on the circuit board 54 by a soldering process, and the reflective sheet 58 is adjacent to a bottom surface 524 of the light guide plate 52. 'The bottom surface 524 is adjacent to the light incident surface 522. The adhesive material 60 is disposed between the light guide plate 52, the circuit board 54 and the reflective sheet 58 for combining the light guide plate 52, the circuit board 54 and the reflective sheet 58, so that the light guide plate can be avoided. 52. The circuit board 54 and the reflective sheet 58 are separated to cause the backlight module 50 to fail to operate normally. [0003] However, the glue 60 combined with the light guide plate 52, the circuit board 54 and the reflective sheet 58 absorbs part of the light emitted by the light-emitting element 56, causing loss of light energy, and if the backlight module 50 When rework is required, the light-emitting element 56 disposed on the circuit board 54 is easily damaged. [New content] [0004] In view of the prior art, one of the purposes of the present invention is to provide a backlight module, which can effectively avoid light loss at the entrance light. Form No. A0101 Page 4 of 22 The problem of damage to the illuminating element during rework and the uneven light entering the illuminating element and the light guide plate, and the adhesive force of the adhesive material affecting the uniformity of the light are generated. Another object of the present invention is to provide a liquid crystal display device having the above backlight module, which can effectively avoid the occurrence of light loss at the entrance light and avoid damage of the light-emitting element when the backlight module is reworked, and The uneven light entering the light-emitting element and the light guide plate is uneven, and the adhesive force of the adhesive material affects the uniformity of the light. [0006] In order to achieve the above object, the present invention provides a backlight module, which comprises a light guide plate, a light-emitting unit, a reflection sheet, a joint member and a first adhesive member, and the light guide plate includes a first An end portion opposite to the second end portion of the first end portion and a bottom surface, the bottom surface abutting the first end portion and the second end portion; the light emitting unit is located at the first end portion, the light emitting The unit includes a circuit board and at least one light-emitting component disposed on the circuit board; the reflective sheet is adjacent to the bottom surface, and the reflective sheet extends from the second end toward the first end portion and abuts against the circuit board; The bonding member is coupled to the circuit board and the reflective sheet; the first adhesive member is disposed at the second end portion and is coupled to the bottom surface and the reflective sheet. According to a specific embodiment of the present invention, the reflective sheet abuts the circuit board through the bonding member. According to a specific embodiment of the present invention, the bonding member is disposed under the circuit board and the reflective sheet. [0009] According to a specific embodiment of the present invention, the first end portion includes a light incident surface, the light emitting element is located on the light incident surface, and the second end portion includes a rear form number A0101, page 5 / total 22 Page M423844 The end surface abuts the light incident surface and the rear end surface. [0010] According to a specific embodiment of the present invention, the bonding member is a single-sided adhesive, a double-sided adhesive or a glue. [0011] According to a specific embodiment of the present invention, the light-emitting element is a side-emitting light-emitting diode or a surface-emitting light-emitting diode. [0012] According to a specific embodiment of the present invention, the circuit board is a flexible circuit board. [0013] According to a specific embodiment of the present invention, the light guide plate includes a visible area and an invisible area adjacent to the visible area, and the first adhesive member is disposed in the invisible area. [0014] According to a specific embodiment of the present invention, the backlight module further includes a support base, and the reflective sheet is disposed on the support base. [0015] According to a specific embodiment of the present invention, the backlight module further includes a second adhesive member disposed on the second end portion and combining the reflective sheet and the support base [0016] according to a specific embodiment of the present invention. In an embodiment, the second adhesive member is disposed substantially in alignment with the first adhesive member. [0017] According to a specific embodiment of the present invention, the backlight module further includes at least one optical film disposed above the light guide plate. [0018] The present invention further provides a liquid crystal display device comprising a backlight module as described above and a liquid crystal display layer, wherein the liquid crystal display layer is disposed above the backlight module. [0019] The bonding component of the backlight module of the present invention is combined with the electric form number A0101 of the light-emitting unit, and the reflective member, the first adhesive member is disposed at the second end portion. In combination with the light guide plate and the reflective sheet, the light-emitting unit, the light guide plate and the reflective sheet can be effectively combined, and the light-absorbing portion can be prevented from absorbing the light emitted by the light-emitting element. The phenomenon produces a problem that the light-emitting element is damaged during heavy work, and the uneven light entering the light-emitting element and the light guide plate is uneven, and the adhesive force of the glue affects the uniformity of the light. [Embodiment] [0020] Referring to the second and third figures, the second drawing is a top view of the backlight module of the first embodiment of the present invention, and the third drawing is a cross-sectional view of the backlight module of the first embodiment. And a partial enlargement. The backlight module 1 includes a light guide plate 12, a light emitting unit 14, a reflective sheet 16, a bonding member 18, and a first adhesive member 20. [0021] The light guide plate 12 is substantially rectangular and has a first end portion 12〇, a second end portion 122 and a bottom surface 124 opposite to the first end portion 120, the bottom surface 1.24 abuts the first end portion 120 and the second end portion 122. The first end portion 120 includes a light incident surface 121. The first earth end portion 122 includes a rear end surface 123. The bottom surface 124 abuts the light incident surface 121 and the rear end surface 123. [0022] The light guide plate 12 further includes a visible area 126 and a non-visible area 128 adjacent to the visible area 126. The bottom surface 124 is provided with a plurality of light guides at corresponding visible areas 126. The structure 127, but not limited thereto, for example, the light guiding surface 127 may be disposed on the light emitting surface 125, wherein the light emitting surface 125 is opposite to the bottom surface 124 and adjacent to the light incident surface 121 and the rear end surface 123; The set density of the isotropic light guiding microstructure 127 is proportional to the distance of the light source from the form number A0101, which is the distance from the light source, that is, the farther the light guiding microstructure 127 is denser. Alternatively, the further away from the light source, the deeper the light guiding microstructure 127 is. The light guiding microstructures 127 may be various dense, different-sized micro lens structures fabricated by etching, laser or CNC, or various dense and different sizes formed by dot printing. Light ink. The light incident from the light incident surface 121 is guided through the light guiding microstructures 127, and the light is refracted and reflected inside the light guide plate 12, and then emitted from the light emitting surface 125 of the light guide plate 12. The light guide plate 12 is Made of a light transmissive material such as polymethyl acrylate (PMMA), synthetic resin, acryl, polycarbonate (PC), polyester (PET), polyolefines or glass. The light emitting unit 14 is located at the first end portion 120. The light emitting unit 14 includes a circuit board 140 and at least one light emitting element 142. The circuit board 140 is formed with a plurality of circuit wirings (not shown) and pads ( The circuit board 140 can be a printed circuit board (PCB) or a flexible printed circuit board (FPC). The light-emitting element 142 is disposed on the circuit board 140 and electrically connected to the circuit board 140. Preferably, the light-emitting element 142 is disposed on the circuit board 140 by a soldering process and is electrically connected to the circuit board 140. 142 is disposed adjacent to the light incident surface 121 and emits light toward the light incident surface 121. The light emitting element 142 is preferably a light emitting diode, and may be a side emitting light emitting diode or a surface emitting light emitting diode. In the embodiment, the light-emitting element 142 is exemplified by a side-emitting light-emitting diode, and the light-emitting surface of the side-emitting light-emitting diode faces the light-incident surface 121. The number of the light-emitting elements 142 may be one or more. In the present embodiment, the light-emitting elements 142 are illustrated by ten. Form No. A0101 ^ qs/u 〇〇 s [0024] The reflective sheet 16 is adjacent to the bottom surface 124 of the light guide plate 12, and the reflective sheet 16 may be, for example, a metal sheet or a Mylar coated with a resin material. A sheet (PET) or other plastic sheet, and may have a color with a better reflection effect such as white or silver. In practice, the color of the reflection sheet 16 can be adjusted according to actual needs or limitations. The reflective sheet 16 abuts the circuit board 140 through the bonding member 18, and the bonding member 18 is coupled to the reflective sheet 16 and the circuit board 140. In this way, the reflection sheet 16 and the circuit board 140 can be prevented from falling off due to the force being pressed, and the light-emitting element is damaged 142 when reassembled. The light-emitting element 142 and the light guide plate 12 can also be accurately aligned, so that the light can be uniformly entered into the light guide plate 12; furthermore, the light-absorptive light can be prevented from being absorbed by the joint member 18, and the adhesive force of the joint member 18 is caused. A situation in which the light is uneven is generated. The bonding member 18 can be a double-sided adhesive, a glue or a single-sided adhesive, and is preferably transparent. The single-sided adhesive can be respectively combined with the circuit board 140 and the reflective sheet 16, and then passed through glue or double-sided adhesive. Combine the above two single-sided adhesives. The first adhesive member 20 is disposed on the second end portion 122 and coupled to the light guide plate 12 and the reflective sheet 16, and preferably, the first adhesive member 20 is disposed in the non-visible area 128 for reducing The first adhesive member 20 absorbs light passing through the light guide plate 12 to cause light loss of the backlight module 10; the first adhesive member 20 may preferably be double-sided adhesive or glue, and the first adhesive member 20 The width is preferably 1 to 2 millimeters. The backlight module 10 further includes a support base 22, which is preferably made of a metal material, such as aluminum alloy or iron. The support base 22 is disposed under the reflective sheet 16 for supporting the light guide plate. 12. The light emitting unit 14 and the reflective sheet 16. Referring to the third figure, the form number A0101 between the support base 22 and the reflection sheet 16 and the M423844 may include a second clamping member 24, and the second adhesive member 24 is disposed on the second The end portion 122 is combined with the support base 22 and the reflection sheet 16, and the second adhesive member 24 is disposed at a position substantially aligned with the first adhesive member 2''. The backlight module 10 further includes at least one optical film 26 disposed on the light emitting surface 125 of the light guide plate 12 for enhancing optical characteristics such as brightness of the backlight module 10. The optical film 26 can be, for example, a diffusion film for diffusing light, or the optical film 26 can be a brightness enhancement film for collecting light to converge light so that the light converges in a viewing direction of the user (ie, a positive viewing angle). Alternatively, the optical film 26 may be a composite optical film that provides both light diffusion and concentrating functions. Further, the number of the optical films 26 may be one or more. In the present embodiment, the number of the optical films 26 is exemplified by four's and preferably from top to bottom as a brightness enhancement film (Brightness)
Enhancement Film，BEF)、一反射式偏光增亮膜 (Dual Brightness Enhancement Film, DBEF) ' — 擴散片（Diffuser)及一擴散板（DiffUSer Plate)，藉 以提升該背光模組的輝度並達到聚光功能。 [0028] 配合參閱第四圖，為本創作第二實施例之背光模組之剖 視圖。該背光模組大致與上述第一實施例相似，不同之 處在於其發光元件142為面射式發光二極體，並且設置鄰 近於該入光面121。為避免光耗損，該支撐座22之一側的 周緣形成一彎折部222，用以容納該發光元件142，並反 射該發光元件142發出之光線，使光線進入該導光板丨2。 [0029] 配合參閱第五圖，為本創作第三實施例之背光模組之別 視圖及局部放大圖。本實施例之背光模組1〇a大致與上述 第一實施例相同，其不同之處在於其結合件l8a設置於該 表軍编號A0101 第10頁/共22頁 電路板140及該反射片16的下方並結合該電路板14〇及該 反射片16 ’且較佳地’該結合件18a為一單面膠，藉此可 避免該電路板140及該反射片16因受外力擠壓而脫落進而 致使該背光模組10a無法正常運作，以及重新组裝時，造 成該發光元件損壞142。該發光元件142及該導光板12也 可以準確地對位’使光線能均勻地進入導光板12 ;再者 ，可以避免該結合件18a吸收光線而產生光耗損，以及結 合件1 8a的黏貼力量導致出光不均勻的情形產生。當然， 上述背光模組1 0a也可為背光模組1 〇，不以此為限。 [0030]配合參閱第六圖’為本創作之液晶顯示裝置之剖視圖。 該液晶顯示裝置1包含上述之背光模組1 〇、一液晶顯示層 30及一框體32 ’該框體32例如為一膠框《該框體32具有 一凸緣部322 ’該框體32與該支撐座22結合且該凸緣部 322壓掣該背光模組1 〇之該導光板12使穩固該背光模組 10。該液晶顯示層30設置背光模組上方，且較佳地，該 液晶顯示層30設置於該凸緣部322上方，用以顯示畫面。 該背考模組10.用以提供該液晶顯示層3〇顯示畫面時所需 的光源’該背光模組1 〇之該結合件18係結合該電路板14 0 及該反射片16 ’從而緊固該電路板j40及該反射片16，以 及重新組裝時，造成該發光元件損壞142。該發光元件 14 2及該導光板12也可以準確地對位，使光線能均勻地進 入導光板12 ;再者’可以避免該結合件丨8吸收光線而產 生光耗損’以及結合件18的黏貼力量導致出光不均勻的 情形產生。當然，上述背光模組1〇也可為背光模組l〇a， 不以此為限》 表單編號A0101 第11頁/共22頁 M423844 [0031] 综上所述，本創作之背光模組10、10a之該結合件18、 18a係結合該發光單元之該電路板140及該反射件16，該 第一黏著件20設置於該第二端部122並結合該導光板12及 該反射片16，如此一來，不但可以有效地結合該導光板 12、該發光單元14及該反射片16，並可以避免該結合件 18、18a吸收該發光元件142發出之光線而導致光耗損的 現象產生、重工時發光元件損壞，以及發光元件與導光 板對位不佳而產生之入光不均勻、膠材黏貼力量影響出 光均勻度之問題。。 然以上所述者，僅為本創作之較佳實施例，當不能限定 本創作實施之範圍，即凡依本創作申請專利範圍所作之 均等變化與修飾等，皆應仍屬本創作之專利涵蓋範圍意 圖保護之範疇。 【圖式簡單說明】 [0032] 第一圖為習知之背光模組之局部剖視圖。 第二圖為本創作第一實施例之背光模組之俯視圖。 第三圖為本創作第一實施例之背光模組之剖視圖及局部 放大圖。 第四圖為本創之第二實施例之背光模組之局部剖視圖。 第五圖為本創作第三實施例之背光模組之剖視圖及局部 放大圖。 第六圖為本創作之液晶顯示裝置之剖視圖。 【主要元件符號說明】 [0033] 1液晶顯示裝置 10、10a背光模組 表單編號A0101 第12頁/共22頁 M423844 12導光板 120第一端部 121入光面 122第二端部 123後端面 1 24底表面 12 5出光面 126可視區 127導光微結構 φ 128非可視區 14發光單元 140電路板 142發光元件 16反射片 18、18a結合件 20第一黏著件 22支撐座 φ 222彎折部 • 24第二黏著件 26光學膜 30液晶顯示層 32框體 322凸缘部 50背光模組 52導光板 5 2 2入光面 第13頁/共22頁 表單編號A0101 M423844 524底表面 54電路板 56發光元件 58反射片 60膠材 表單编號A0101 第14頁/共22頁Enhancement Film (BEF), a Dual Brightness Enhancement Film (DBEF)' - Diffuser and DiffUSer Plate to enhance the brightness of the backlight module and achieve concentrating function . [0028] Referring to the fourth figure, a cross-sectional view of the backlight module of the second embodiment of the present invention is shown. The backlight module is substantially similar to the first embodiment described above, except that the light-emitting element 142 is a surface-emitting light-emitting diode and is disposed adjacent to the light-incident surface 121. To avoid light loss, a periphery of one side of the support base 22 forms a bent portion 222 for accommodating the light-emitting element 142 and reflecting light emitted from the light-emitting element 142 to allow light to enter the light guide plate 丨2. [0029] Referring to FIG. 5, it is a different view and a partial enlarged view of the backlight module of the third embodiment of the present invention. The backlight module 1A of the present embodiment is substantially the same as the first embodiment described above, except that the bonding member 18a is disposed on the circuit board No. A0101, page 10/22 page board 140, and the reflection sheet. The circuit board 14 and the reflective sheet 16 ′ and preferably the bonding member 18 a are a single-sided adhesive, thereby preventing the circuit board 140 and the reflective sheet 16 from being squeezed by external force. The falling off causes the backlight module 10a to fail to operate normally, and the light-emitting element is damaged 142 when reassembled. The light-emitting element 142 and the light guide plate 12 can also accurately align the light to uniformly enter the light guide plate 12; furthermore, the light absorption loss can be avoided by the joint member 18a, and the adhesive force of the joint member 18a can be prevented. A situation that causes uneven light. Of course, the backlight module 10a may also be a backlight module 1 〇, not limited thereto. [0030] Referring to the sixth drawing, a cross-sectional view of the liquid crystal display device of the present invention is shown. The liquid crystal display device 1 includes the backlight module 1 , a liquid crystal display layer 30 and a frame 32 ′. The frame 32 is, for example, a plastic frame. The frame 32 has a flange portion 322 . The light guide plate 12 is pressed against the support block 22 and the flange portion 322 presses the backlight module 1 to stabilize the backlight module 10. The liquid crystal display layer 30 is disposed above the backlight module, and preferably, the liquid crystal display layer 30 is disposed above the flange portion 322 for displaying a picture. The back test module 10 is used to provide a light source required for the liquid crystal display layer 3 to display a picture. The binding member 18 of the backlight module 1 is coupled to the circuit board 14 0 and the reflective sheet 16 ′. When the circuit board j40 and the reflection sheet 16 are fixed and reassembled, the light-emitting element is damaged 142. The light-emitting element 14 2 and the light guide plate 12 can also be accurately aligned, so that the light can enter the light guide plate 12 uniformly; furthermore, the light-damage of the light-receiving portion of the joint member 8 can be avoided and the adhesive of the joint member 18 can be adhered. Power causes uneven lighting. Of course, the backlight module 1〇 can also be a backlight module l〇a, not limited thereto. Form No. A0101 Page 11 / Total 22 pages M423844 [0031] In summary, the backlight module 10 of the present invention The bonding member 18, 18a of the 10a is coupled to the circuit board 140 of the light emitting unit and the reflective member 16. The first adhesive member 20 is disposed on the second end portion 122 and combines the light guide plate 12 and the reflective sheet 16 In this way, the light guide plate 12, the light-emitting unit 14 and the reflection sheet 16 can be effectively combined, and the light from the light-emitting element 142 can be prevented from being absorbed by the joint member 18, 18a, thereby causing light loss. The light-emitting element is damaged during heavy work, and the uneven light entering the light-emitting element and the light guide plate is uneven, and the adhesive force of the adhesive material affects the uniformity of light emission. . However, the above is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited, that is, the equal changes and modifications made by the scope of the patent application of the present invention should still be covered by the patent of the present invention. The scope of the scope is intended to protect. BRIEF DESCRIPTION OF THE DRAWINGS [0032] The first figure is a partial cross-sectional view of a conventional backlight module. The second figure is a top view of the backlight module of the first embodiment of the present invention. The third figure is a cross-sectional view and a partial enlarged view of the backlight module of the first embodiment of the present invention. The fourth figure is a partial cross-sectional view of the backlight module of the second embodiment of the present invention. Fig. 5 is a cross-sectional view and a partial enlarged view of the backlight module of the third embodiment of the present invention. Figure 6 is a cross-sectional view of the liquid crystal display device of the present invention. [Main component symbol description] [0033] 1 liquid crystal display device 10, 10a backlight module form number A0101 page 12 / total 22 pages M423844 12 light guide plate 120 first end portion 121 light entrance surface 122 second end portion 123 rear end surface 1 24 bottom surface 12 5 light-emitting surface 126 visible area 127 light-guiding microstructure φ 128 non-visible area 14 light-emitting unit 140 circuit board 142 light-emitting element 16 reflective sheet 18, 18a joint 20 first adhesive member 22 support seat φ 222 bend 24 second adhesive member 26 optical film 30 liquid crystal display layer 32 frame 322 flange portion 50 backlight module 52 light guide plate 5 2 2 light-in surface page 13 / total 22 pages form number A0101 M423844 524 bottom surface 54 circuit Plate 56 Light-emitting element 58 Reflective sheet 60 Gel material form No. A0101 Page 14 of 22