M358988 八、新型說明： 【新型所屬之技術領域】 本創作關於-種光賴組，且特別是—觀祕液晶顯示器 (Hquid Cr卿1 display，LCD)作為面光源的背光模組（_啡 module)。 【先前技術】 圖U為習知之-種背光模組的爆炸圖，圖m為圖〜之背光模 組於組合制局《關。制轉相m，習知的背光模 組100包含一導光板丨1〇及一友鼻+ y彳1Λ 次汉射片112，其中反射片m配置於導 光板no的底s。背光· 100更包含兩燈管12〇、兩固定套122及 兩反射罩130 ’其中這些燈f 12〇分別藉由這些固定套122容置於這 些反射罩丨30内。反射罩13G具有—金屬材f之罩合部132及一反射 層133 ’其中反射層133酉己置於對應的罩合部132的内面。 背光模組卿更包含一金屬下框14〇a及一塑膠上框灘。當這 些燈官120分別藉由這些固定套122容置於這些反射罩13〇内之後， 這些反射罩130可分別夹持導光板110及反射片m的兩側。接著， 將導光板11G、反射片112、燈管⑽、固定套122、反射罩130置於 f屬下框1他中’並將轉上框勵摊至金屬下框丨他，即可固 疋这些几件的位置。背光模組卿更包含多個光學膜片⑼，例如擴 散片及增光片等，其依序疊置於導光板UG上方，並限位於導光板 110及塑膠上框140b之間。 A依此自知5又计’金屬下框M0a除了用以搭配塑膠上框1概來 固疋上述7L件之外’更作為導熱路徑的中職。亦即，燈管⑽末端 的電極所產生的熱可依序傳導至反射層133、罩合部132及金屬下框 4〇a而傳遞至外界。然而，反射罩13〇的罩合部m與金屬下框· M358988 接觸’導致罩合部132與金屬下框购之間的熱阻極高而 去提供良好的導熱效果。 【新型内容】M358988 八, New Description: [New Technology Field] This creation is about the kind of light-based group, and especially the Hurd Crqing 1 display (LCD) as a surface light source backlight module (_啡module ). [Prior Art] Fig. U is an exploded view of a conventional backlight module, and Fig. m is a backlight module of Fig. ～ in the combination system. In the conventional phase, the backlight module 100 includes a light guide plate 丨1〇 and a friend nose + y彳1Λ han film 112, wherein the reflection sheet m is disposed at the bottom s of the light guide plate no. The backlight 100 further includes two lamps 12 〇, two fixing sleeves 122 and two reflecting covers 130 ′, wherein the lamps f 12 容 are respectively accommodated in the reflecting hoods 30 by the fixing sleeves 122. The reflector 13G has a cover portion 132 of a metal material f and a reflective layer 133' in which the reflective layer 133 is placed on the inner surface of the corresponding cover portion 132. The backlight module further includes a metal lower frame 14〇a and a plastic upper frame beach. After the lamp holders 120 are respectively received in the reflectors 13 by the fixing sleeves 122, the reflectors 130 can respectively sandwich the sides of the light guide plate 110 and the reflection sheet m. Next, the light guide plate 11G, the reflection sheet 112, the lamp tube (10), the fixing sleeve 122, and the reflection cover 130 are placed in the lower frame 1 of the frame, and the upper frame is stretched to the metal lower frame to be smashed. The location of these pieces. The backlight module further includes a plurality of optical films (9), such as a diffusion sheet and a brightness enhancement sheet, which are sequentially stacked above the light guide plate UG and are disposed between the light guide plate 110 and the plastic upper frame 140b. A. According to this, I know that the metal lower frame M0a is used in addition to the plastic upper frame 1 to fix the above 7L pieces. That is, the heat generated by the electrodes at the end of the tube (10) can be sequentially transmitted to the reflective layer 133, the cover portion 132, and the metal lower frame 4〇a to be transmitted to the outside. However, the cover portion m of the reflector 13 is in contact with the metal lower frame M358988, resulting in an extremely high thermal resistance between the cover portion 132 and the metal lower frame to provide a good heat conduction effect. [New content]
W • 本創作提供-種財較錄熱錄之冑光模組。 本創作的其他目的和優點可以彳林創作所《的技術特 '徵中得到進一步的了解。 為達上述之-或部份或全部目的或是其他目的，本創作之一實施 _ 例提七、種奇光板組，其包含一導光板、至少-光源組件、至少-反 射罩及-上框。導光板具有__頂面、—相對於頂面的底面、—連接頂 面與底面的第-側面及-連接頂面、底面與第—側面的第二侧面。光 原、’且件郝近導光板之第—側面，且光源組件包含至少—燈條及設置於 燈條的至少-發光二極體。反射罩呈一 L字形的截面外形且包含一支 撑土連接支撐壁的一第一導熱部及連接第一導熱部的一第二導熱 部，其中燈條設置於支撐壁，第一導熱部從支撐壁的一側延伸至導光 板的底面，第二導熱部從第-導熱部延伸至導光板的第二側面，且支 ^ 撐壁與第一導熱部構成此L字形的截面外形。上框具有一側壁與一自 ' 側壁延伸的底面，支撐壁固接至側壁，上框之底面抵壓導光板。 , 在本創作之一實施例中，上框之底面、支撐壁與第一導熱部構成一匚 .字形的截面外形，且反射罩不具有貼近且沿上框之底面延伸的部分。 . 在本創作之一實施例中，背光模組更包含至少一對扣合結構，設 置於上框及支撐壁，且這對扣合結構分別為一卡鉤及一卡槽。 在本創作之一實施例中，背光模組更包含至少一對扣合結構，設 置於上框及第二導熱部，且這對扣合結構分別為—_^鉤及一_^^槽。 在本創作之一實施例中，背光模組更包含一反射片，設置於導光板的 7 M358988 底面與第一導熱部之間。 在本創作之一實施例甲，背光 , 果、.且更包含一反射層，貼附於燈η；欠 S 又置有發光二極體的一表面，价燈心 且古真— 汉财不叠合發光二極體。反射層可 絲、C字形、L字形她字形的—截面外形。且於—I: 例中反射層接觸上框之底面。 、月細 在本創作之一實施财，背光模組更包含設置於反射片下方的一 、=^。防漏光片的局部配置於第—導熱部與反射片之間 漏先片的局部貼附於第—導熱部。 耆防 本創作之上述實施例可以從反射罩之支擇壁所延伸出 部來取代先前技術的金屬 V'、、、 «卜彳[咕4熱效果及降低零件成本。 為^創作之上雜徵和伽能更·祕，下域料個實施例， 亚配S所附圖式，作詳細說明如下。 【實施方式】 施例的說明是參考附加的圖式，用以例示本創作可用以 貝「鈿之特疋貫施例。本創作所提到的方向用語，例如「上」、卩下」、 月」」後」、「左」、「右」等’僅是參考附加圖式的方向。因 此，使用的方向用語是用來說明，而非时_本創作。 圖2A為本創作一實施例的一種背光模組的爆炸圖，圖2B為圖 2A之背光模組於組裝後的局部剖面圖。請同時參考目μ及圖犯， 本實施例之背光模組包含一導光板21G、至少—光源組件22〇、 至少-反射罩230及-上框⑽。於本實施例中，背光模組細係為 雙邊側邊入光式之背光模組，因此光源組件创與反射罩顶之數量 皆以二為例，但不以此為限。光源組件22〇包含至少―燈條(喻 bar)222及設置於燈條222表面的至少一發光二極體辦圖2a例示 為複數個）。導光板21G具有—頂面滿、—相對於頂面鳥的底面 M358988 210b、一連接頂面210a與底面21%的第一側面21此及一連接頂面 210a、底面210b與第-側面21〇c的第二側面21〇d。光源組件22〇 設置於鄰近導光板第一侧面21此位置處。 反射罩230呈一 L字形的截面外形，由於運作中的發光二極體 224會發熱，為了散逸這些熱能來降低溫度，反射罩230更包含支撐 壁232、連接支撐壁232的一第一導熱部234及連接第一導熱部234 的第二導熱部236，燈條222設置於支撐壁232，第一導熱部234從 對應的支撐壁232的一側延伸至導光板21〇的底面21〇b，且支撐壁 232與第一導熱部234構成L字形的截面外形，因而增加導熱途徑。 背光模組200更可包含一反射片212以提高光利用效率，且於一實施 例中反射片212設置於導光板21〇的底面2l〇b與第一導熱部234之 間。依本實施例之設計，反射罩230其延伸自支揮壁232的第一導熱 部234可取代習知的金屬下框140a，而省略金屬下框14〇a此一構件 即可降低製造成本。此外，當第一導熱部234與支撐壁232以一體成 形方式製造時，第一導熱部234與支撐壁232 —體成形的方式，在導 熱效果上優於習知金屬下框14〇a與罩合部132的非緊密接觸方式。 另外，因第一導熱部234不需要佔據導光板21〇的底面21〇b的全部 即可提供足夠的導熱效果，故可進一步降低材料成本。在本實施例 中，每個反射罩230更可具有兩個第二導熱部236，其從對應的第一 導熱部234延伸至導光板210的第二側面210d，藉以進一步增加光 源組件220的導熱途徑。 背光模組200之上框240與反射罩230相配合，以固定其他元件 的位置。上框240具有至少一側壁241與至少一自側壁241延伸的底 面249，支撐壁232固接至侧壁241，上框240之底面249抵壓導光 板210。於一實施例中，上框240之底面249、支禮壁232與第一導 9 M358988 熱部234構成一匚字形的截面外形，且反射罩23〇不具有貼近且沿上 框240之底面249延伸的部分。此外，於一實施例中背光模組2〇〇之 上框240與反射罩230相扣接，具體而言，上框240的側壁241上設 置複數個扣合結構240a，而複數個設置於上框240的扣合結構240a 可分別與複數個設置於支撐壁232上的扣合結構232a相扣接，且設 置於上框240另一邊的複數個扣合結構240b可分別與複數個設置於 第一導熱部236的扣合結構236a相扣接。在本實施例中，上框240 之扣合結構240a與反射罩230之扣合結構232a可成對地存在，並可 為一·^鉤及一"^槽；此外，上框240之扣合結構240b與反射罩230 之扣合結構236a亦可成對地存在，並可為一_^鉤及一_^槽。上框240 可為一塑膠上框’這些反射罩230更可經由螺絲242鎖附至上框240， 以增加結構強度。 背光模組200更可包含複數個光學膜片250，例如擴散片及增光 片等，其疊置於導光板210的頂面210a上方。在本實施例中，這些 光學膜片250被限位於上框240與導光板210之間。具體而言，這些 光學膜片250的邊緣相對於導光板210受到上框240的限位。 為了防止光線洩漏，背光模組200更可包含一防漏光片260，其 設置於反射片212之下方，且其面積例如可涵蓋反射片212其由第一 導熱部234所暴露的區域。於一實施例中，防漏光片260的局部可配 置於第一導熱部234與反射片212之間，且防漏光片260可為一鋁箔 片。於另一實施例中，防漏光片260的局部可貼附於第一導熱部234。 另外，當防漏光片260的材質採用金屬時，防漏光片260亦具有阻絕 電磁干擾（electromagnetic interference，EMI)的功能。 再者，如圖2B所示，於一實施例中，可於燈條222其設置有 發光二極體224的表面上貼附一反射層244，藉以進一步提高光利用 M358988 效率。於一實施例中反射層244可以接觸上框240之底面249 ,且反 射層244例如可為塑膠材料所構成。圖3為反射層244的一前視圖， 圖4A-4D為反射層244的側視圖，以顯示反射層244的不同截面外 形貫例。如圖3所示，於一實施例中，反射層244貼附於燈條222表 面上的區域不疊合發光二極體224的分佈區域。再者’如圖4A_4D 所示’反射層244的截面外形並不限^，例如可為—長條形截面(圖 4A)、匚字形截面(圖4B)、L字形截面（圖4C)、倒L字形截面(圖4D) 均可。另外，反射罩23G的截面外形並不限定，例如為圖5A所示的W • This creation provides a twilight module for the recording of financial records. The other purposes and advantages of this creation can be further understood by Yulin's "Technology Special". In order to achieve the above-mentioned or some or all of the objectives or other purposes, one of the creations of the present invention is to provide a light guide plate, at least a light source assembly, at least a reflection cover and an upper frame. . The light guide plate has a top surface, a bottom surface opposite to the top surface, a first side surface connecting the top surface and the bottom surface, and a second side surface connecting the top surface, the bottom surface and the first side surface. The light source, and the first side of the light guide plate, and the light source assembly comprises at least a light bar and at least a light emitting diode disposed on the light bar. The reflector has an L-shaped cross-sectional shape and includes a first heat conducting portion supporting the soil connecting support wall and a second heat conducting portion connecting the first heat conducting portion, wherein the light bar is disposed on the supporting wall, and the first heat conducting portion is supported from the support One side of the wall extends to the bottom surface of the light guide plate, and the second heat conducting portion extends from the first heat conducting portion to the second side surface of the light guide plate, and the supporting wall and the first heat conducting portion constitute the L-shaped cross-sectional shape. The upper frame has a side wall and a bottom surface extending from the side wall, the support wall is fixed to the side wall, and the bottom surface of the upper frame is pressed against the light guide plate. In one embodiment of the present invention, the bottom surface of the upper frame, the support wall and the first heat conducting portion form a cross-sectional shape of the U-shaped shape, and the reflecting cover does not have a portion that is close to and extends along the bottom surface of the upper frame. In one embodiment of the present invention, the backlight module further includes at least one pair of fastening structures disposed on the upper frame and the support wall, and the pair of fastening structures are respectively a hook and a card slot. In an embodiment of the present invention, the backlight module further includes at least one pair of fastening structures disposed on the upper frame and the second heat conducting portion, and the pair of fastening structures are respectively -_^ hooks and a _^^ slot. In an embodiment of the present invention, the backlight module further includes a reflective sheet disposed between the bottom surface of the light guide plate 7 M358988 and the first heat conducting portion. In one embodiment of the present invention, the backlight, the fruit, and a reflective layer are attached to the lamp η; the under S is also provided with a surface of the light-emitting diode, and the price is light and ancient - Hancai does not stack Light emitting diode. The reflective layer can be wire-shaped, C-shaped, and L-shaped her-shaped cross-sectional shape. And in the -I: example, the reflective layer contacts the bottom surface of the upper frame. Months In the implementation of one of the creations, the backlight module further includes one and =^ disposed under the reflective sheet. The partial portion of the leakage preventing sheet is disposed between the first heat conducting portion and the reflective sheet, and the portion of the first leaking sheet is attached to the first heat conducting portion. The above-described embodiment of the present invention can replace the prior art metal V', "," [彳4 thermal effect and reduce the cost of parts" from the extension wall of the reflector. For the creation of the above-mentioned miscellaneous signs and gamma can be more secret, the lower domain material is an example, and the sub-sequence S is described in detail below. [Embodiment] The description of the embodiment refers to the additional drawing, which is used to illustrate that the present invention can be used in the following examples. The directional terms mentioned in this creation, such as "upper", "underarm", "Month", "Left", "Right", etc. are only directions for reference to the additional schema. Therefore, the direction used is used to explain, not the time. 2A is an exploded view of a backlight module according to an embodiment of the present invention, and FIG. 2B is a partial cross-sectional view of the backlight module of FIG. 2A after assembly. The backlight module of the embodiment includes a light guide plate 21G, at least a light source assembly 22, at least a reflector cover 230, and an upper frame (10). In this embodiment, the backlight module is a double-sided side-input type backlight module. Therefore, the number of the light source component and the top of the reflector cover are both as an example, but not limited thereto. The light source assembly 22 includes at least a light bar 222 and at least one light emitting diode disposed on the surface of the light bar 222. FIG. 2a is exemplified as plural. The light guide plate 21G has a top surface full, a bottom surface M358988 210b with respect to the top surface bird, a first side surface 21 connecting the top surface 210a and the bottom surface 21%, and a connecting top surface 210a, a bottom surface 210b and a first side surface 21〇. The second side 21 of the c is 21〇d. The light source assembly 22 is disposed at a position adjacent to the first side 21 of the light guide plate. The reflector 230 has an L-shaped cross-sectional shape. Since the LED 224 in operation is heated, in order to dissipate the heat to reduce the temperature, the reflector 230 further includes a support wall 232 and a first heat conducting portion connecting the support wall 232. 234 and the second heat conducting portion 236 connecting the first heat conducting portion 234, the light bar 222 is disposed on the supporting wall 232, and the first heat conducting portion 234 extends from a side of the corresponding supporting wall 232 to the bottom surface 21〇b of the light guide plate 21〇, Moreover, the support wall 232 and the first heat conducting portion 234 form an L-shaped cross-sectional shape, thereby increasing the heat conduction path. The backlight module 200 further includes a reflective sheet 212 to improve light utilization efficiency. In one embodiment, the reflective sheet 212 is disposed between the bottom surface 21b of the light guide plate 21 and the first heat conducting portion 234. According to the design of the embodiment, the first heat conducting portion 234 of the reflector 230 extending from the supporting wall 232 can replace the conventional metal lower frame 140a, and the metal lower frame 14a can be omitted to reduce the manufacturing cost. In addition, when the first heat conducting portion 234 and the supporting wall 232 are integrally formed, the first heat conducting portion 234 and the supporting wall 232 are integrally formed in a manner superior to the conventional metal lower frame 14A and the cover in heat conduction effect. The non-close contact manner of the hinge 132. Further, since the first heat transfer portion 234 does not need to occupy all of the bottom surface 21b of the light guide plate 21, a sufficient heat conduction effect can be provided, so that the material cost can be further reduced. In this embodiment, each of the reflective covers 230 further has two second heat conducting portions 236 extending from the corresponding first heat conducting portions 234 to the second side surface 210d of the light guide plate 210, thereby further increasing the heat conduction of the light source assembly 220. way. The upper frame 240 of the backlight module 200 cooperates with the reflective cover 230 to fix the position of other components. The upper frame 240 has at least one side wall 241 and at least one bottom surface 249 extending from the side wall 241. The support wall 232 is fixed to the side wall 241, and the bottom surface 249 of the upper frame 240 is pressed against the light guide plate 210. In one embodiment, the bottom surface 249 of the upper frame 240, the tribute wall 232 and the first guide 9 M358988 hot portion 234 form a U-shaped cross-sectional shape, and the reflective cover 23 〇 does not have a close surface and along the bottom surface 249 of the upper frame 240 The extended part. In addition, in one embodiment, the upper frame 240 of the backlight module 2 is fastened to the reflector 230. Specifically, a plurality of fastening structures 240a are disposed on the sidewall 241 of the upper frame 240, and a plurality of the fastening structures 240a are disposed on the upper frame 240. The fastening structure 240a of the frame 240 can be respectively fastened to the plurality of fastening structures 232a disposed on the support wall 232, and the plurality of fastening structures 240b disposed on the other side of the upper frame 240 can be respectively disposed with the plurality of fastening structures 240b The fastening structure 236a of the heat conducting portion 236 is fastened. In this embodiment, the fastening structure 240a of the upper frame 240 and the fastening structure 232a of the reflective cover 230 may exist in pairs, and may be a hook and a "^ slot; in addition, the buckle of the upper frame 240 The fastening structure 240b and the fastening structure 236a of the reflector 230 may also exist in pairs, and may be a hook and a slot. The upper frame 240 can be a plastic upper frame. The reflectors 230 can be attached to the upper frame 240 via screws 242 to increase the structural strength. The backlight module 200 further includes a plurality of optical films 250, such as a diffusion sheet and a brightness enhancement sheet, which are stacked on top of the top surface 210a of the light guide plate 210. In the present embodiment, these optical films 250 are confined between the upper frame 240 and the light guide plate 210. Specifically, the edges of these optical films 250 are constrained by the upper frame 240 with respect to the light guide plate 210. In order to prevent light leakage, the backlight module 200 further includes a light leakage preventing sheet 260 disposed under the reflective sheet 212, and its area may cover, for example, a region of the reflective sheet 212 exposed by the first heat conducting portion 234. In one embodiment, a portion of the light leakage preventing sheet 260 may be disposed between the first heat conducting portion 234 and the reflective sheet 212, and the light leakage preventing sheet 260 may be an aluminum foil sheet. In another embodiment, a portion of the light leakage preventing sheet 260 may be attached to the first heat conducting portion 234. In addition, when the material of the leakage preventing sheet 260 is made of metal, the leakage preventing sheet 260 also has a function of blocking electromagnetic interference (EMI). In addition, as shown in FIG. 2B, in a certain embodiment, a reflective layer 244 may be attached to the surface of the light bar 222 on which the light-emitting diode 224 is disposed, thereby further improving the efficiency of light utilization M358988. In one embodiment, the reflective layer 244 can contact the bottom surface 249 of the upper frame 240, and the reflective layer 244 can be formed, for example, of a plastic material. 3 is a front view of reflective layer 244, and FIGS. 4A-4D are side views of reflective layer 244 to show different cross-sectional externalities of reflective layer 244. As shown in FIG. 3, in an embodiment, the area of the reflective layer 244 attached to the surface of the light bar 222 does not overlap the distribution area of the light emitting diode 224. Furthermore, as shown in FIG. 4A-4D, the cross-sectional shape of the reflective layer 244 is not limited, and may be, for example, an elongated section (FIG. 4A), a U-shaped section (FIG. 4B), an L-shaped section (FIG. 4C), and inverted. The L-shaped cross section (Fig. 4D) can be used. In addition, the cross-sectional shape of the reflection cover 23G is not limited, and is, for example, as shown in FIG. 5A.
232可構成如圖5A所不的L字型截面，因如此可節省材料成本。 雖然本創作已以多個實施例揭露如上，然其並非用以限定本創 作，任何所屬技術賴巾具有财知識者，在獨離本 範圍内，當可作些許之更動與潤飾，因此本創作之保護制當:後附 之申請專纖騎界定者為準。本創作的實_或巾請專利範圍不項 達成本創作所揭露之全部目的紐，喊_。摘要和標題僅是輔助專 利文件搜尋之用，並非用來限制本創作之保護範圍。 【圖式簡單說明】 圖1A為習知之一種背光模組的爆炸圖。 圖1B為圖ία之背光模組於組合後的局部剖面圖232 can form an L-shaped cross section as shown in FIG. 5A, which can save material costs. Although the present invention has been disclosed in the above embodiments in various embodiments, it is not intended to limit the creation of the present invention. Anyone who has the financial knowledge of the related art will be able to make some changes and refinements within the scope of the present invention. The protection system: The attached application for the definition of the special fiber ride shall prevail. The actual scope of this creation or the scope of the patent for the towel does not reach the full purpose of the disclosure of this creation, shouting _. The abstract and title are for the purpose of assisting in the search for patent documents and are not intended to limit the scope of this creation. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is an exploded view of a conventional backlight module. FIG. 1B is a partial cross-sectional view of the backlight module of FIG.
圖3為依本創作實施例之反射層的前視圖，圖4Α“ Λ兀供組·的爆炸 圖2Β為圖2Α之背光模組於組裝後的局部剖面圖 作貫施例之反射層的側視圖。 前視圖’圖4八-犯為依本創 圖5Α及圖5Β為依本創作實施例之反射罩的側視圖 M358988 【主要元件符號說明】 100 :背光模組 110 :導光板 112 :反射片 120 :光源 122 :固定套 Π0 :反射罩 132 :罩合部 133 :反射層 140a :金屬下框 140b :塑膠上框 150 :光學膜片 200 :背光模組 210 :導光板 210a :頂面 210b :底面 210c :第一側面 210d :第二側面 212 :反射片 220 :光源組件 222 :燈條 224 :發光二極體 230 :反射罩 232 :支撐壁 232a :扣合結構 12 M358988 第一導熱部 第二導熱部 :扣合結構 上框 :扣合結構 :扣合結構 側壁 螺絲 反射層 上框底面 光學膜片 防漏光片3 is a front view of a reflective layer according to the present embodiment, and FIG. 4A is a side view of the reflective layer of the backlight module of FIG. Front view 'Fig. 4 VIII - sin according to the present diagram 5 Α and Fig. 5 Β is a side view of the reflector according to the present embodiment M358988 [Main component symbol description] 100: backlight module 110: light guide plate 112: reflection Sheet 120: light source 122: fixed sleeve Π0: reflector 132: cover portion 133: reflective layer 140a: metal lower frame 140b: plastic upper frame 150: optical film 200: backlight module 210: light guide plate 210a: top surface 210b : bottom surface 210c: first side surface 210d: second side surface 212: reflective sheet 220: light source assembly 222: light strip 224: light emitting diode 230: reflective cover 232: support wall 232a: fastening structure 12 M358988 first heat conducting portion Two heat conducting parts: fastening structure upper frame: fastening structure: fastening structure side wall screw reflection layer upper frame optical film anti-leakage film