M368094 五、新型說明： 【新型所屬之技術領域】 本發明細於-種背光模組，特別是關於—種利用貼附 荷重物抑制光學膜片下垂以降低顯示晝面異常發生機率的背 糸模会日〇 【先前技術】 、，蚣著科技進步’具有省電、無幅射、體積小、低耗電量、 平面直角、*解析度、晝質穩定料項優勢的液晶顯示器， 為原先處獨佔地位之傳、统映像管榮幕(簡稱CRT)帶來了莫大 的衝擊’尤其是齡各式資訊產品如：手機、筆記型電腦、 數位相機、PDA、液晶錄等產品越來越普及，亦使得液晶 顯示器(LCD)的需求量大大提升。 液晶顯tf器主要係包括一液晶顯示面板以及一背光模 組(backlight module) ’其巾液晶顯示面板是由—彩色滤光片 基板(color filter)、一薄膜電晶體陣列基板(TFT &胃 以及配置於此兩基板之間的液晶層所構成。其中，由於液晶 顯示面板本身並非㈣光型暴頁示裝置，故在液晶顯示面板的 下方必須提供-背光模組，用以提供此液晶面板所需之面光 源，以使液晶顯示器達到顯示的效果，並同時獲得足夠之亮 度與對比’進而達到顯示的功能。 請參閱第一圖，係為習知技術之液晶顯示器之零組件示 思圖。液晶顯示崙1具有一模組鐵框n (Lamp SUpp0rt)、一 面板組12 (Panelunit)、一背光前框13 (Chassis)、一光學膜 4 M368094 片層14 (Films)、一背光侧框μ (side-frame)、一反射片16 (Reflector)、一燈管組17 ( [amps 出^)與一背板組 18 (BaCk-COVerunit)。其中，背光前框13、背光側框15以及背 板組18係背光模組的最外層，將燈管組17包覆於其内，並設 置於面板組12下方以提供面板組12光源。在一較佳實施例 中，背光丽框13係為一中空的長方形框架結構，其功能除了 包覆於背箱組上方外’也支撐了面板組12避免面板組12掉 落。 然而，以目前在模組後段將液晶顯示器出貨裝箱的方式 來說，目前關示面朝下（Faee D_)的裝箱方式也開始 被業界所運用。請參考第二A圖，其係為習知之液晶顯示器 f顯示面朝下時之背光模組2的橫截面示意圖。其中，當液 晶顯示器的顯示面朝下時，背光模組2中之各個元件倒^， 亦即相較於第-圖，此時之光學則21係設置於光源22下 =且’、兩i^係设置於背光前框23的兩側邊上，並藉由背光 别框23與背細㈣結合後的空間來限制光學 直柯驗移。值得注意較，絲膜仙的中間部 刀係藉由背光雜23的巾雜域露$。鱗，光學膜片^本 會導致其下垂而透過f光前框23之巾空區域觸碰 的情形？偏光板(圖未示），進而產生了顯示晝面色不均(Mura) 中光請參考第二順圖’其係為習知之背光模組 二，於顯示面朝下時之膜片下垂結構示意圖。1 :琎㈤==== 凹fe。此4，代表垂直方向的下陷量越大，亦即 M368094 曲率半徑馬會較,j、’而光學膜片21變形後的水平方向長度會 變短為L2。一般而言，此情況代表了光學膜片21於背光^框 23兩侧的總重量、拉力以及光學膜片21與背光前框23間的磨 擦力已經不足以負荷光學膜片21位於背光前框23中空部份 的重量，若光學膜片“之數值越接近中空長度a時，光學膜 片21從背光前框23中心掉落的發生機率越高，使得光學膜片 處碰到偏光板導致顯示晝面色不均的情況發生。 一接著，如第二C圖所示，其係為另一習知之背光模組中 光學膜片21於顯示面朝下時之膜片變形結構示意圖。當比例 之光學膜片長紅3遠大於背光前框23的巾空長度A，即 Ls»a時，當光學膜片21放到背光前框23上時，其於水平方 向的長$雖然會下修至L4，但光學則21的相段區域僅會 在背光刚框23巾空部份產生些許的凹陷，尤其私值越大 時其光子膜片21的中間段區域凹陷量會越小，即曲率半徑 馬會趨近於絲大。因此，可赠解的是，當光學膜片狀 度越長時’光學膜（21掉落出背光前框23的情況越不嚴重。 然而’由於液晶顯示器的市場趨勢通常會將晝面顯示區 作的越大越好，因此在目前的設計中，請參考第二D圖，假 設光學膜片21長減去f光前框a巾空部份餘级，背光前 框23中工口P伤長度χν ’在32对液晶顯示器時&與&的比例 、·勺為1 54即1單位光學膜片2i邊緣與背光前框μ相互作用 造成之所有作用力（重量）需承受背光前框23中空部份54倍 的光子膜片21下垂重量。至於，在37对液晶顯示器時&與心 比例的需求當缺為嚴苛，如：XF與XV_為1:61 。所以， 造成^造商開發的機種尺寸越大時，XF與χν的比例差異也 越大，而光學則下垂的情形越嚴重的情況發生。 M368094 因而’如何控制光學膜片下垂的情形，並兼顧目前液晶 顯不器發展的趨勢，已然成為目前各相關領域的設計者亟思 發展的目標。 【新型内容】M368094 V. New Type of Description: [New Technical Field] The present invention is more specific to a backlight module, and more particularly to a backing die that uses an attached load to suppress the sagging of the optical film to reduce the probability of occurrence of anomalies. Will be the [previous technology], and take advantage of the scientific and technological progress of the liquid crystal display with power saving, no radiation, small size, low power consumption, flat right angle, * resolution, and enamel stability materials, for the original The exclusive status, the unified image of the Congrui (CRT) has brought a great impact. In particular, various information products such as mobile phones, notebook computers, digital cameras, PDAs, and LCD recordings are becoming more and more popular. It also greatly increases the demand for liquid crystal displays (LCDs). The liquid crystal display device mainly comprises a liquid crystal display panel and a backlight module. The towel liquid crystal display panel is composed of a color filter substrate and a thin film transistor array substrate (TFT & stomach). And a liquid crystal layer disposed between the two substrates. The liquid crystal display panel itself is not a (four) light type page display device, and a backlight module must be provided under the liquid crystal display panel to provide the liquid crystal panel. The required surface light source, so that the liquid crystal display can achieve the display effect, and at the same time obtain sufficient brightness and contrast 'to achieve the display function. Please refer to the first figure, which is a component diagram of the liquid crystal display of the prior art. The liquid crystal display has a module iron frame n (Lamp SUpp0rt), a panel unit 12 (Panelunit), a backlight front frame 13 (Chassis), an optical film 4 M368094 slice 14 (Films), a backlight side frame μ (side-frame), a reflector 16 (Reflector), a tube group 17 ([amps output ^) and a back panel group 18 (BaCk-COVerunit). Among them, the backlight front frame 13, the backlight side frame 15 and Back panel 18 series The outermost layer of the optical module encloses the tube group 17 therein and is disposed under the panel group 12 to provide the panel group 12. In a preferred embodiment, the backlight frame 13 is a hollow rectangle. The frame structure, whose function is not only covered above the back box group, but also supports the panel group 12 to prevent the panel group 12 from falling. However, in the current way of packaging the liquid crystal display in the rear of the module, the current The face-down (Faee D_) packing method has also begun to be used by the industry. Please refer to the second A picture, which is a cross-sectional view of the backlight module 2 when the conventional liquid crystal display f is displayed face down. When the display surface of the liquid crystal display is facing down, the components in the backlight module 2 are inverted, that is, compared to the first image, and the optical portion 21 is disposed under the light source 22 = and ', two i ^ The system is disposed on both sides of the front frame 23 of the backlight, and limits the optical straightness by the space of the backlight frame 23 and the back (4). It is worth noting that the middle portion of the silk film is used by The backlight of the miscellaneous 23 is misleading. The scale, the optical patch ^ will cause it to sag And through the f-light front frame 23, the space of the towel touches the polarizing plate (not shown), which in turn produces a display of uneven color (Mura). Please refer to the second figure, which is a conventional backlight. Module 2, schematic diagram of the drooping structure of the diaphragm when the display surface is facing downward. 1 : 琎 (5) ==== concave fe. This 4, the larger the amount of sag in the vertical direction, that is, the radius of curvature of M368094 will be compared, j 'The horizontal length of the optical film 21 after deformation is shortened to L2. In general, this case represents the total weight, tensile force, and optical film 21 and backlight of the optical film 21 on both sides of the backlight frame 23. The friction between the front frame 23 is insufficient to load the weight of the optical film 21 in the hollow portion of the backlight front frame 23. If the value of the optical film is closer to the hollow length a, the optical film 21 is from the center of the backlight front frame 23. The higher the probability of occurrence of the drop, the occurrence of unevenness in the surface of the display due to the impact of the polarizing plate at the optical film. First, as shown in FIG. 2C, it is a schematic diagram of the deformation structure of the diaphragm when the optical film 21 of the conventional backlight module is facing downward. When the ratio of the optical film length red 3 is much larger than the towel blank length A of the backlight front frame 23, that is, Ls»a, when the optical film 21 is placed on the backlight front frame 23, its length in the horizontal direction is Down to the L4, but the phase section of the optical 21 will only produce some depressions in the empty portion of the backlight frame 23, especially when the private value is larger, the amount of depression in the middle section of the photonic film 21 will be smaller. That is, the radius of curvature of the horse will approach the size of the wire. Therefore, it can be said that the longer the optical film is, the less the optical film (the situation in which the backlight front frame 23 is dropped out of 21). However, due to the market trend of the liquid crystal display, the kneading display area is usually The bigger the better, so in the current design, please refer to the second D picture, assuming that the optical film 21 is long minus the front of the f-light front frame a, and the length of the working front P in the backlight front frame 23 Χν 'In the 32 pairs of liquid crystal displays && ratio, the spoon is 1 54, that is, 1 unit of optical film 2i edge and backlight front frame μ interaction all the force (weight) to withstand the backlight front frame 23 The hollow portion has 54 times the photon diaphragm 21 sagging weight. As for the 37 pairs of liquid crystal displays, the demand for the ratio of the heart to the heart is not critical, such as: XF and XV_ are 1:61. The larger the size of the model developed by the quotient, the greater the difference between the ratio of XF and χν, and the more serious the situation of optical drooping. M368094 Thus 'how to control the sagging of the optical film, and take into account the current liquid crystal display The trend of development has become the current relevant field The designer's goal is to develop. [New content]
根據以上所述，得知在大尺寸的液晶顯示器的設計上想 ，欲解決光學膜片下垂的現象’增加光學膜片尺寸之方式幾乎 疋不可能執行。有鐘於此’為了有效解決上述問題，本發明認 f增加xF長度所代表的橫向體積，且改變為從縱向增量體積， 藉此來降低比例所造成的光學膜片下垂量。 北據此’本發明提供一種背光模組，應用於一液晶顯示器。 此背光模組係相鄰於一液晶顯示面板並與其組立成一體，至少 包含一框體、兩背光侧框、一第一光學膜片以及至少一 重物。 ° 、其中，框體，其底部設有一容置空間。二背光側框，其 =別设於容置空間之兩側’且該些側框與框體形成兩光學膜片 =置空間。第一光學膜;：；，其兩端係分別置於兩光學膜片容置 空間上。而第—荷重物，係設置於第-光學膜片之表面。 本發明巾在光學則邊緣_荷餘的方法，光學 的，緣，齡較為沉重，但仍可容許光學則受_漲冷縮時 呆有-定的平移能力，並不會影響到一般光學膜片的功能 或造成職外關題。^且，_邊緣的重量也可愛止、 學膜片下垂修正量來做調整。 光 關於本發明之優點與精神，以及更詳細的實施 以 由以下的實施方式以及所附圖式得到進一步的瞭解。 9 7 M368094 【實施方式】 :參考第二圖，其係為本發明—實施例之結構示意圖。如 圖所不’本發明提供—種背光模組，顧於-液晶顯示器中。 • 練晶顯示器中，背光模組係相鄰於-液晶顯示面板(未圖示) 並Μ其組立成-體，此背光模纟且至少包含—框體3卜一第—光 :膜片32以及至少一第一荷重物33,其中框體31可包含背光 前框之結構。必魏_是，雖未«示，但液晶顯示器自包含 • 有:薄膜電晶體陣列基板、-彩色濾、光片基板以及-液晶層位 ❿ 於_電晶體陣列基板與彩色渡光>}基板之間，在此不再贅 办框體3卜係由複數摘侧邊311所組成，其底部設有一容 置工間且其與背光侧框(未圖示)中 其中，兩背細框，其分赠於上述鋪底狀容^空間兩 侧，，些侧框與框體形成兩光學膜片容置空間。From the above, it has been found that in the design of a large-sized liquid crystal display, it is almost impossible to perform the phenomenon of increasing the size of the optical film by the phenomenon of sagging of the optical film. In order to effectively solve the above problems, the present invention recognizes that the lateral volume represented by the xF length is increased and is changed from the longitudinal incremental volume, thereby reducing the optical film sag caused by the ratio. According to the present invention, the present invention provides a backlight module for use in a liquid crystal display. The backlight module is adjacent to and integrated with a liquid crystal display panel, and comprises at least a frame, two backlight side frames, a first optical film and at least one weight. °, wherein the frame has a receiving space at the bottom. Two backlight side frames, which are disposed on both sides of the accommodating space, and the side frames and the frame form two optical films=space. The first optical film;:;; the two ends of the film are respectively placed on the two optical film receiving spaces. The first load is placed on the surface of the first optical film. The method of the invention is optically edge-remaining, optical, edge, and relatively heavy, but still allows the optical to be subjected to a certain translational ability when subjected to _crow and cold, without affecting the general optical film. The function of the film may cause a special issue. ^ Also, the weight of the _ edge is also cute, and the diaphragm sag correction amount is adjusted. The advantages and spirit of the present invention, as well as the more detailed implementation, are further understood from the following embodiments and the accompanying drawings. 9 7 M368094 [Embodiment]: Referring to the second drawing, it is a schematic structural view of the present invention. As shown in the figure, the present invention provides a backlight module, which is in the liquid crystal display. In the crystal display, the backlight module is adjacent to the liquid crystal display panel (not shown) and is assembled into a body, the backlight module includes at least a frame 3 and a light: the film 32 And at least one first load 33, wherein the frame 31 can comprise a structure of a backlight front frame.必魏_ Yes, although not shown, the liquid crystal display is self-contained • There are: thin film transistor array substrate, - color filter, light substrate and - liquid crystal layer on _ transistor array substrate and color crossing light >} Between the substrates, the frame 3 is not formed here, and is composed of a plurality of side edges 311. The bottom of the substrate is provided with a receiving room and the backlight side frame (not shown). The two sides of the space are formed on the two sides of the space, and the side frames and the frame form two optical film receiving spaces.
第光子膜片32,其兩端係分別f於兩光學膜片容置空間 ’且其中間區域係透過中空區域312曝露出來。 丨第荷重物33，係分別設置於第-光學膜片32相 之邊緣上之容置郎。射，第—荷重物％為 矩狀和或至少—餘糾，縣鱗於或大於L5釐米。 物33在第—圖之實施财，料模組係包括至少—第一荷重 Ϊ的曰’亚ΐ!姆的方式與第—光學則32邊緣結合。特別注 33，、以避光予則％的邊緣不能貼附太長的第—荷重物 龜曲Si _ 32咖咖定的邊緣過長而造成 Μ :匕:相鄰之第-荷重_以-定間距盼 另外，弟-荷重物33之材y可與第—光學則32相同。 M368094 在較佳實施例中’第一荷重物33之材質為—塑膠材料，可選 自一聚礙酸酯材料(Polycarbonates，PC)或一聚對苯二甲酸乙一 醋材料(PET)。然巾’第-荷重物33的的材質並不以此為限， 亦即選用與第-光學膜片32受熱特性相似材質的第—荷重物 33來貼附’聽S受細造紐緣因材質熱漲冷縮率不同而形 成顯著的光學膜片翹曲，亦可達到本發明之目的。 y 另外，背光模組可選擇為-直下式背光模组或一侧光式背The photon diaphragm 32 has its two ends respectively exposed to the two optical film receiving spaces ′ and the intermediate region thereof is exposed through the hollow region 312. The crucible load 33 is disposed on the edge of the phase of the first optical film 32, respectively. Shot, the first - load weight % is the moment and or at least - the remaining correction, the county scale is at or greater than L5 cm. The material 33 is implemented in the first figure, and the material module includes at least a first load Ϊ ΐ ΐ ΐ 姆 姆 姆 姆 姆 姆 姆 姆 姆 姆 姆 姆 姆 。 。 。 。 。 。 。 。 。 。 。 。. In particular, 33, in order to avoid the light, the edge of the % can not be attached too long, the weight of the tortoise, the twisted Si _ 32, the edge of the coffee is too long, causing Μ: 匕: adjacent first - load _ to - In addition, the material y of the younger-weight 33 can be the same as the first optical 32. M368094 In the preferred embodiment, the material of the first load 33 is a plastic material selected from the group consisting of a polycarbonate (PC) or a polyethylene terephthalate (PET) material. The material of the first load-bearing material 33 is not limited thereto, that is, the first load 33 of the material similar to the heat-receiving property of the first optical film 32 is used to attach the 'sound S to the fine-grained origin. The material heat warpage rate is different to form a significant optical film warpage, and the object of the present invention can also be achieved. y In addition, the backlight module can be selected as a direct-lit backlight module or a side-light backlight
光模組。當背光模組為一直下式背光模組時，宜更包含一光 源，設置於光學膜片32下方；反之，雖未圖示’背光模組則 包含有-導光板設··絲則32下方，以及—光源配 置於導光板之一侧邊。 必/員庄思的疋’ 1¾光模組具有兩片以上的光學膜片 時’荷重物_财向不齡同，也就是說位 光 物需貼於其上方，而位置在下方的光學膜片，荷; 物則需貼附於其下方，以絲學膜片邊緣產生_，若第二光 45則可权置於弟一荷重物43之外側。 妙構音“考^四圖’其係本發明另-實施例之背光模 j °細騎顯示之結構大致上與第三圖相同，其 僅有之差異在於第四圖中#白人 ^ 少#^包含有H學則44以及至 乂兩弟-讀㈣5。社麵者之結髮異如下所述。 —賴組包含有—第二光學則44以及至少一第 —何重物45。苴中，筮-土盥王夕昂 學膜片42^―先予則44係置難體41與第-光 片44相對二荷重物45 ’係分別設置於第二光學膜 子-側之邊緣上之容置空間。至於框體*卜第一光學 9 M368094Light module. When the backlight module is a direct-type backlight module, it preferably includes a light source disposed under the optical film 32; otherwise, although not shown, the backlight module includes a light guide plate and a wire 32. And the light source is disposed on one side of the light guide plate. When the 13 ' ⁄ 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 The sheet is to be attached to the bottom of the film to produce a _, and if the second light 45 is to be placed on the outer side of the weight-bearing object 43. The structure of the backlight mode j ° fine ride display of the present invention is substantially the same as that of the third figure, and the only difference is that the white figure in the fourth figure #白^少#^ It includes the H-study 44 and the two-student-read (four) 5. The difference between the socialists is as follows: - the ray group contains - the second optical 44 and at least one first - heavy weight 45.筮 盥 盥 夕 夕 夕 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 42 Space. As for the frame * Bu first optical 9 M368094
膜片42與第-荷重物43之設置及相對應關係均已揭露 文，在此不再贅述。 、月J 士根據第二至四圖，當背光模組更包含一第三光學膜 =荷重物的置放方式雖未圖示，但可以依照上述兩實施例 =如后。其中，背光模組更包含—第三辟膜片以及一第 物。第三光學則驗置於第—光學則與第二鱗膜片之 曰至少—第三荷重物，係分別設置於第三光學 側之邊緣上之容置空間。 彳對一 在較佳實施例中’第三光學膜片 片與第二光學膜片的面積，且第^^積大於第一光學膜 與第二荷重物之外侧，弟-何重物係設置於第-荷重物 精神翻以限定本發明 =僅止於上述實施例。舉例來說，本發 動衣置亦可為-自動升降裝置，用以驅動载驅 具有通常知識者，係口 3 神與範圍崎作之修改，_ 1麟本發明之精 • 在下述之申請專利範圍内。 【圖式簡單說明】 弟一圖係為習知技術之液晶顯示器之愛电立闻 第二A目傳、為習知之液晶 不思圖； 卜 光模組的横截面示意圖顯不面朝下時之背 第二B目係為習知之背光模 下時之膜月變形結構^圖錢片於顯示面朝 M368094 第二c圖係為另一習知之背光模組中光學膜片於顯示 .面朝下時之膜片變形結構示意圖； 第二D圖係為習知背光模組中光學膜片於顯示面朝下 時與背光前框之配置示意圖； 第三圖係為本發明一實施例之結構示意圖；以及 第四圖係為另一本發明一實施例之結^:示意圖。 _ 【主要元件符號說明】 1 液晶顯示器 11 模組鐵框 12 面板組 13、23背光前框 14 光學膜片層 15、24 背光侧框 16 反射片 • 17燈管組 18 背板組 2 背光模組 - 21 光學膜片 22 光源 A 中空長度 LHU光學膜片之橫向長度The arrangement and corresponding relationship between the diaphragm 42 and the first load 43 have been disclosed, and will not be described herein. According to the second to fourth figures, when the backlight module further includes a third optical film = the load is placed, although not shown, it can be in accordance with the above two embodiments = as follows. The backlight module further includes a third diaphragm and a first object. The third optical device is placed on the first optical device and the second squamous film at least the third load is disposed in the accommodating space on the edge of the third optical side. In the preferred embodiment, the area of the third optical film sheet and the second optical film is greater than the outer side of the first optical film and the second load, and the weight system is set. The invention is defined by the spirit of the first load and is limited to the above embodiment. For example, the launching device can also be an automatic lifting device for driving the drive with the usual knowledge, the modification of the mouth 3 and the range of the singularity, the essence of the invention. Within the scope. [Simple diagram of the drawing] The picture of the younger brother is the LCD of the conventional technology, and the second A-channel of the love of the electrician, the LCD of the conventional one is not thought; the cross-section of the optical module is not facing down. The second B-frame is a film-deformed structure when the backlight module is under the conventional backlight. The image of the film is displayed on the display surface toward the M368094. The second c-frame is the optical film in the conventional backlight module. The surface is facing downward. The schematic diagram of the deformation structure of the diaphragm; the second diagram is a schematic diagram of the arrangement of the optical film in the conventional backlight module when the display surface faces downward and the backlight front frame; the third figure is a schematic structural view of an embodiment of the present invention; And the fourth figure is a schematic diagram of another embodiment of the invention. _ [Main component symbol description] 1 LCD display 11 module iron frame 12 panel group 13, 23 backlight front frame 14 optical film layer 15, 24 backlight side frame 16 reflective sheet • 17 tube group 18 back panel group 2 backlight module Group - 21 Optical Diaphragm 22 Light Source A Hollow Length LHU Optical Diaphragm
Ri〜R2光學膜片凹陷位置之曲率半徑 11 M368094Ri~R2 optical film concave position radius of curvature 11 M368094
Xf 光學膜片長度減去背光前框中空部份長度值Xf optical film length minus the length of the front part of the backlight
Xv 背光前框中空部份長度 31、 41 框體 311 ' 411 側邊 312、412 框體之中空區域 32、 42 第一光學膜片 33 >43 第一荷重物 44 第二光學膜片 45 第二荷重物 12Xv backlight front frame length 31, 41 frame 311 ' 411 side 312, 412 hollow area 32, 42 of the frame first optical film 33 > 43 first load 44 second optical film 45 Two load weights 12