201011417 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種液晶顯示器裝置，特別是一種背光模組與 具有該模組之液晶顯示裝置。 【先前技術】 直到最近，顯示裝置常使用陰極映像， CRT)。目前，關於開發不同種類的平面顯示器的許多努力與研究 ® 正被進行，例如液晶顯示器(liquid oystal display，LCD)裝置、電 聚顯示器面板(plasma display Pand，FDP)、電場發射顯示器(field emission display)與電致發光面板(dectr〇_luminescence 出邮町， ELD) ’用以作為陰極映像管的替代品。在這些平板顯示器中，液 晶顯示器裝置具树乡優點，例如高騎離重量 輕、薄型(thin profile)，密實尺寸(compact sjze)與低壓供電耗電率 的需求。 一般而言，液晶顯示器裝置包括兩個基板，此兩個基板彼此 間隔分離且互相面對，且液晶材料佈置於兩個基板之間。此兩個 基板包括電極(electrode)，電極相互面對而使得電極之間的電壓 (voltage applied)透過液晶材料感應出一個電場(eiectr^c geid)。感應 出的電場改變液晶之定向(alignment)的方向，及依據感應出的電場 之強度，從而改變液晶顯示器裝置的光線穿透率(transmissivity)。 因此’液晶顯示器褒置藉由各種不同感應出的電場之強度顯示影 201011417 . 液晶顯示器裝置需要背光模組用以供應光線。背光模組通常 可歸為兩大類.侧邊式(edge type)與直下式(direct type)。侧邊式背 光模組包含的光源係位於液晶顯示器裝置的一側邊。直下式背光 模組包含的光源係位於液晶顯示器裝置的底部。 請參考「第1圖」所示，其係為習知技術之側邊式背光模組 的示意圖。請配合參考「第1圖」，側邊式背光模組2〇包括：導 光板30、燈管24、反射板22、複數個光學片29、燈管導引單元 © 28。燈管24係為光源，反射板22位於導光板30下方，光學片29 位於導光板30上方。其中，光學片29包括：擴散片（diffUsi〇n也㈣ 與至少一個聚光片（condensing sheet)。導光板30之下表面的圖樣 31(pattem)用以提供一個均勻的發光平面。 由於導光板30與反射板22彼此相鄰，因靜電產生於導光板 30與反射板22的相對表面(opposing surfaces)，使得導光板％可 能緊貼於反射板22。背光模組20於運作過程產生熱，而熱使得導 光板30與反射板22膨脹。但是，導光板30與反射板22具有不 同的熱％脹率(thermal expansion rate)，及反射板22比導光板30 較薄。因此’熱膨脹可能導致反射板22產生皺摺(wrinkle)。液晶 顯示盗裳置中顯示區域的亮度對應至反射板22中產生 的皱摺區域’而皺摺區域可能會與其他的顯示區域之亮度不同。 因此，這樣的亮度變化通過液晶顯示器裝置可能會造成缺陷 - (defect) ’例如於液晶顯示器裝置的顯示螢幕上的亮點(stain)，及顯 示品質因此而退化。 201011417 【發明内容】 鑒於以上的問題，本發明係關於—種液晶顯示裳置，用 決習知技術之限制與缺點之問題。 解 本發明的主要目的在於提供—種背光模組與具有該模組之液 晶顯示裳置，用以改善液晶顯示裝置的顯示品質。 曰顯本ΓΓΓ目的在於提供―種背光模組與具有該模組之液 曰曰』不裝置’用以提供液晶顯示裝置—個亮度均勻的背光模组。 以下將對本發日_點與優點進行描述，及 中所學f而得。本發明之優點可藉由發= θ中所㈣描顧結構、義及_之圖式㈣瞭及據以實施。 所描Γ據本㈣錢成之優點與目的，以τ將詳細，本發明 液晶顯示面板的背光餘包括：燈管、複數個光學片' 板。導光板導引燈管的光線至光學片；反射板面向 =ΠΓ板包括:複數個第-幾何形狀與複數個第 ^=1= '第—幾何形狀直接導引 _先線至光學片；第二幾何形狀位於後表面的外圍 L: 附於導光板;第二幾何形狀的密度小於第 一幾何形狀的密度。 模本發明所揭露之液晶顯示面板的背光 複數個光學片、導光板與反射板。導光板導引 二片的後表面；反射板面向導光板的後表面；導 先板包括.魏個第-幾何形狀與複數個第二幾何形狀。第一 201011417 何形綠於録面，帛—冑_ 且侵守5丨入射至導光板的光 線至先子片，弟一幾何形狀位於後表面的外圍部分·第二 狀的區域等於或約1〇%小於導纟 、導先板之後表面之外圍部分的區域。 2本發嫩-無，本翻嘯錢碑 权組中控制光線傳播的方法，背光模組具有燈管、複數個光^ 導先板與反射板。導光板導引燈管的光線燈管至光學片，^射板 ❹ 去杯齡主 法匕括·扣供複數個第—幾何形狀於導 ^的後絲，肋直接導狀較導光_姐至光 及提供複數個第二幾何形狀位於導光板之後表面的外圍 二刀’用以防止反射板黏附於導光板’第二幾何形狀之大小大於 第一幾何形狀之大小。 ； 經由以上之關於本發明之内容說明及以下之 七、 係用以示範與解釋本發明之精神與原理，並且提供本發 申請範圍更進一步之解釋。 專利 【實施方式】 有關本發明的特徵輿實作，兹配合圖式作最佳實施例詳細說 明如下。 請參考「第U示，其係為依據本發 晶顯示器裝置之示意圖。如「第2圖」所示，液晶顯示器裝置包 括.液晶面板210、背光模組220、主支撐件23〇 蓋240。 卜盍250與上 燈管224與複 背光模組220包括：反射板222、導光板226、 7 201011417 一 數個光學片229。其中，反射板222位於下蓋250上，導光板226 位於反射板222上，燈管224位於導光板226的一邊，光學片229 位於導光板226上。燈管224所發出的光線係射入導光板226的 輸入部分，並傳導及完全反射於導光板226中，且均勻擴散於導 光板226的前表面。因此，導光板226供應一個均勻的發光平面 至液晶面板210。導光板226之下表面的圖樣用以產生一個更均勻 的發光平面。 ® 反射板222將光線反射回導光板226並增加亮度。光學片229 可包含：擴散片與至少一個聚光片。因此，光學片229將通過導 光板226的光線擴散與聚光，以供應更均勻的發光平面至液晶面 板 210。 主支撐件230具有矩形框並且與上蓋24〇及下蓋25〇結合， 以將液晶面板210與背光模組220於其中。上蓋240具有矩形框 並覆蓋液晶面板210的外圍部分。下蓋25〇於液晶顯示器裝置的 下方覆蓋並支撐背光模組220。 液晶面板210用以顯示影像，液晶面板21〇包括：第一基板 212、弟一基板214與液晶層(Hquid CIyStai iayer)。液晶層介於第一 基板212與第二基板214之間。在第一基板212中，複數個閘線(gate line)與複數個資料線(data line)(未標示)彼此相互交錯而定義出複 數個像素區域。在每一個像素區域中，薄膜電晶體(thin film 係被形成及被連結至對應的閘線與資料線，及像素電極 係連結至薄膜電晶體。在第二基板214中，紅色、綠色與藍色彩 201011417 .色濾光片（color fllier)圖樣係被形成於各自的像素區域，及黑矩陣 (black matrix)係被形成並對應至間線、資料線與薄膜電晶體。此 外，第-定向層輿第二定向層可分別於第一基板212與第二基板 2M的内表面上。另外，密封__ pattem)可被提供並沿著第 -基板212與第二基板214的外圍部分延伸，以依附第一基板犯 與第二基板214。此外，第一偏光板喊疏⑼㈣與第二偏光板 係分別依附於第一基板212與第二基板214的外表面上。 ❿ 至少一個驅動印刷電路板(Printed Circuit Board，PCB)218可 透過連接部216被連結至液晶面板21〇，其中此連接部2l6例如是 可撓性電路轉exible drcuit 縣親城㈣e carrier package，TCP)。在裝配過程中，連接部216係被彎曲及印刷電路 板218係設置於主支撐件230的一邊或是下蓋25〇的下端。 请參考「第3圖」所示，其係為依據本發明的一實施例「第2 圖」所示之液晶顯示器裝置的背光模組之示意圖。如「第3圖」 所示，月光模組220包括：反射板222、導光板226、燈管224與 複數個光學片229。反射板222面向下蓋250(如「第2圖」所示）， 導光板226位於反射板222上，燈管224面向導光板226的一邊， 光學片229位於導光板226上。背光模組220更包括：燈管導引 單το 228。燈管導引單元228支撐燈管224，及燈管導引單元228 具有開口部分，開口部分面向導先板226。燈管導引單元2烈環繞 與保濩燈管224、以及反射光線至導光板226的邊緣。 藉由將燈官224的光線完全反射，導光板226提供發光平面 9 201011417 至液晶面板210。此外，導光板226可包括預定圖樣(predetermined • -· pattern)用以增進發光平面的均勻性(uniformity)。導光板226可由 塑膠材料所製成，例如聚曱基丙烯酸甲酯 (polymethylmethacrylate，PMMA)、丙稀酸樹脂(acrylic resin)或聚 碳酸酯(polycarbonate，PC)材料。 燈管 224 可為冷陰極燈管(c〇id cathode fluorescent lamp，CCFL) 與外部電極螢光管(external eiectr〇cie fluorescent lamp，EEFL)其中 ⑩之一。或者’發光二極體(light emitting diode，LED)可沿導光板22ό 的一邊用以作為光源的供應。當使用發光二極體作為光源時，則 不需要燈管導引單元228。 清參考「第4圖」所示，其係為依據本發明的一實施例之背201011417 VI. Description of the Invention: [Technical Field] The present invention relates to a liquid crystal display device, and more particularly to a backlight module and a liquid crystal display device having the same. [Prior Art] Until recently, display devices often used a cathode image, CRT). At present, many efforts and research on the development of different types of flat panel displays are being carried out, such as liquid oystal display (LCD) devices, plasma display Pand (FDP), field emission displays (field emission display). ) and the electroluminescent panel (dectr〇_luminescence, E-mail, ELD) is used as a substitute for the cathode image tube. Among these flat panel displays, liquid crystal display devices have advantages such as high riding weight, thin profile, compact sjze and low voltage power consumption. In general, a liquid crystal display device includes two substrates which are spaced apart from each other and face each other, and a liquid crystal material is disposed between the two substrates. The two substrates comprise electrodes, the electrodes facing each other such that a voltage applied between the electrodes induces an electric field (eiectr^c geid) through the liquid crystal material. The induced electric field changes the direction of alignment of the liquid crystal and changes the light transmissivity of the liquid crystal display device depending on the intensity of the induced electric field. Therefore, the liquid crystal display device displays the image by the intensity of various different induced electric fields. 201011417. The liquid crystal display device requires a backlight module for supplying light. Backlight modules are generally classified into two broad categories: edge type and direct type. The side-mounted backlight module includes a light source located on one side of the liquid crystal display device. The direct-lit backlight module contains a light source at the bottom of the LCD device. Please refer to "Figure 1" for a schematic diagram of a side-lit backlight module of the prior art. Referring to FIG. 1 , the side backlight module 2 includes a light guide plate 30, a lamp tube 24, a reflector 22, a plurality of optical sheets 29, and a lamp guiding unit © 28. The light tube 24 is a light source, the reflection plate 22 is located below the light guide plate 30, and the optical sheet 29 is located above the light guide plate 30. The optical sheet 29 includes a diffusion sheet (diffUsi〇n (4) and at least one condensing sheet. A pattern 31 on the lower surface of the light guide plate 30 is used to provide a uniform light-emitting plane. The backlight plate 22 and the reflection plate 22 are adjacent to each other, and the opposite surfaces of the light guide plate 30 and the reflection plate 22 are generated by static electricity, so that the light guide plate% may be in close contact with the reflection plate 22. The backlight module 20 generates heat during operation. The heat causes the light guide plate 30 and the reflection plate 22 to expand. However, the light guide plate 30 and the reflection plate 22 have different thermal expansion rates, and the reflection plate 22 is thinner than the light guide plate 30. Therefore, 'thermal expansion may cause The reflection plate 22 generates a wrinkle. The brightness of the display area in the liquid crystal display corresponds to the wrinkle area generated in the reflection plate 22, and the wrinkle area may be different from the brightness of the other display areas. The change in brightness may cause a defect through the liquid crystal display device - (defect), for example, a bright spot on the display screen of the liquid crystal display device, and the display quality is degraded SUMMARY OF THE INVENTION In view of the above problems, the present invention relates to a liquid crystal display skirt, which solves the problems of limitations and disadvantages of the prior art. The main purpose of the present invention is to provide a backlight module and the same The liquid crystal display of the group is used to improve the display quality of the liquid crystal display device. The purpose of the display is to provide a liquid crystal display device and a liquid crystal display device having the same. A backlight module with uniform brightness. The following is a description of the present invention, and the advantages and advantages of the present invention. The advantages of the present invention can be traced by the structure, the meaning, and the pattern of _ (4) and according to the implementation. According to the advantages and purposes of this (4) Qian Cheng, τ will be detailed, the backlight of the liquid crystal display panel of the present invention includes: a lamp tube, a plurality of optical sheets 'plates, a light guide plate guide lamp The light of the tube to the optical sheet; the surface of the reflector facing the ΠΓ plate includes: a plurality of first-geometry and a plurality of ^=1= 'the first geometric shape direct guiding _ the first line to the optical sheet; the second geometric shape is located behind Peripheral surface L: attached to the light guide plate; the density of the second geometric shape is smaller than the density of the first geometric shape. The liquid crystal display panel disclosed in the invention has a plurality of optical sheets, a light guide plate and a reflective plate, and the light guide plate guides the two pieces. a rear surface; a reflective plate surface of the rear surface of the light guide plate; the guide plate includes a Wei-first geometric shape and a plurality of second geometric shapes. The first 201011417 is shaped green on the recording surface, 帛-胄_ and invades 5丨The light incident on the light guide plate is to the first sub-piece, and the geometric shape is located at the peripheral portion of the rear surface. The second-shaped region is equal to or about 1% smaller than the area of the peripheral portion of the guide and the rear surface of the guide plate. 2 The hair is tender - no, this method of controlling light propagation in the power group, the backlight module has a lamp tube, a plurality of light guide plates and a reflection plate. The light guide plate guides the light tube of the tube to the optical sheet, and the shot plate ❹ the cup method of the main method includes a plurality of first-geometry shapes on the back wire of the guide wire, and the rib directly guides the light guide _ sister To the light and to provide a plurality of second geometries on the surface of the rear surface of the light guide plate to prevent the reflector from adhering to the light guide plate. The second geometry is larger in size than the first geometry. The above description of the present invention and the following seven are intended to illustrate and explain the spirit and principles of the present invention, and to provide further explanation of the scope of the present application. [Embodiment] The features of the present invention are described in detail below with reference to the drawings. Please refer to "U", which is a schematic diagram of the device according to the present invention. As shown in "Fig. 2", the liquid crystal display device includes a liquid crystal panel 210, a backlight module 220, and a main support member 23 cover 240. The dice 250 and the upper tube 224 and the complex backlight module 220 include a reflection plate 222, a light guide plate 226, and a number of optical sheets 229. The reflector 222 is located on the lower cover 250, the light guide plate 226 is located on the reflector 222, the tube 224 is located on one side of the light guide plate 226, and the optical sheet 229 is located on the light guide plate 226. The light emitted by the tube 224 is incident on the input portion of the light guide plate 226, and is conducted and totally reflected in the light guide plate 226, and uniformly diffused on the front surface of the light guide plate 226. Therefore, the light guide plate 226 supplies a uniform light emitting plane to the liquid crystal panel 210. The pattern of the lower surface of the light guide plate 226 is used to create a more uniform light emitting plane. The reflector 222 reflects light back to the light guide 226 and increases brightness. The optical sheet 229 may include a diffusion sheet and at least one condensing sheet. Therefore, the optical sheet 229 diffuses and condenses the light passing through the light guide plate 226 to supply a more uniform light-emitting plane to the liquid crystal panel 210. The main support member 230 has a rectangular frame and is combined with the upper cover 24 and the lower cover 25 to sandwich the liquid crystal panel 210 and the backlight module 220 therein. The upper cover 240 has a rectangular frame and covers a peripheral portion of the liquid crystal panel 210. The lower cover 25 covers and supports the backlight module 220 under the liquid crystal display device. The liquid crystal panel 210 is configured to display images, and the liquid crystal panel 21 includes a first substrate 212, a substrate 214, and a liquid crystal layer (Hquid CIyStai iayer). The liquid crystal layer is interposed between the first substrate 212 and the second substrate 214. In the first substrate 212, a plurality of gate lines and a plurality of data lines (not labeled) are interdigitated with each other to define a plurality of pixel regions. In each pixel region, a thin film is formed and connected to the corresponding gate and data lines, and the pixel electrode is coupled to the thin film transistor. In the second substrate 214, red, green, and blue Color 201011417. A color fllier pattern is formed in the respective pixel regions, and a black matrix is formed and corresponds to the interline, the data line, and the thin film transistor. Further, the first alignment layer The second alignment layer may be respectively on the inner surfaces of the first substrate 212 and the second substrate 2M. In addition, a sealing may be provided and extended along the peripheral portions of the first substrate 212 and the second substrate 214 to The first substrate is attached to the second substrate 214. In addition, the first polarizing plate is slid (9) and the second polarizing plate is attached to the outer surfaces of the first substrate 212 and the second substrate 214, respectively.至少 At least one printed circuit board (PCB) 218 can be connected to the liquid crystal panel 21 through the connection portion 216, wherein the connection portion 216 is, for example, a flexible circuit to exible drcuit county (four) e carrier package, TCP ). During the assembly process, the connecting portion 216 is bent and the printed circuit board 218 is disposed on one side of the main support member 230 or the lower end of the lower cover 25A. Please refer to FIG. 3, which is a schematic diagram of a backlight module of a liquid crystal display device according to an embodiment of the present invention. As shown in Fig. 3, the moonlight module 220 includes a reflector 222, a light guide plate 226, a bulb 224, and a plurality of optical sheets 229. The reflector 222 faces the lower cover 250 (as shown in FIG. 2), the light guide plate 226 is located on the reflector 222, the tube 224 faces one side of the light guide plate 226, and the optical sheet 229 is positioned on the light guide plate 226. The backlight module 220 further includes: a lamp guide unit το 228. The lamp guiding unit 228 supports the lamp tube 224, and the lamp guiding unit 228 has an opening portion that faces the leading plate 226. The lamp guiding unit 2 surrounds the lamp tube 224 and reflects the light to the edge of the light guide plate 226. The light guide plate 226 provides a light-emitting plane 9 201011417 to the liquid crystal panel 210 by completely reflecting the light of the lamp 224. In addition, the light guide plate 226 may include a predetermined pattern (predetermined • pattern) to enhance the uniformity of the light emitting plane. The light guide plate 226 may be made of a plastic material such as polymethylmethacrylate (PMMA), acrylic resin or polycarbonate (PC) material. The tube 224 may be one of a c〇id cathode fluorescent lamp (CCFL) and an external eiectr〇cie fluorescent lamp (EEFL). Alternatively, a 'light emitting diode (LED) may be used as a light source along one side of the light guide plate 22'. When a light-emitting diode is used as the light source, the lamp guiding unit 228 is not required. Referring to FIG. 4, it is a back according to an embodiment of the present invention.
’其範圍 約0.5毫米至5毫米。 第一幾何特徵圖樣(亦稱第一幾 ，一幾何形狀圖樣)211係被彤成於導'The range is about 0.5 mm to 5 mm. The first geometric feature pattern (also known as the first few, a geometric shape pattern) 211 is smashed into a guide
-一的外型。每一個第一幾何特徵 221例如可為全像圖樣(h〇1〇gmm 圖樣211及第二幾何特徵圖樣 :亦稱 中。 可具 201011417 • _咖）。第一幾何特徵圖樣211及第二幾何特徵圖樣221可藉由 使神刷方法或射出成形技術mQlding咖㈣而形成。 第歲何4寸徵圖樣211與第二幾何特徵圖樣功可和導光板 226 -起形成。依據本發明的一實施例，第—幾何特徵圖樣叫與 第二^特徵圖樣221可和導光板226為相同材料。依據本發明 ，、實袖帛-幾何特徵圖樣m與第二幾何特徵圖樣切 可和導光板226為不同材料。 β 依據本發卿-實施例，擴散师iffw)(未標示)可被提供於 反射板222與導光板226之間。 第一幾何特徵圖樣叫將光線擴散，叫引入射至導光板孤 上的光線。由於第-幾何特徵圖樣211，入射至導光板226上的光 線於導光板226中傳導及完全反射。因此，均勻的發光平面被產 生亚被提供給液晶面板⑽。第一幾何特徵圖樣扣具有大尺寸及 Φ /或第一幾何特徵圖樣211，其緻密到足以將入射到導光板226上 的大部份的光線傳送至液晶面板21G。依據本發實施例，依 據燈管轉「第3圖」所示)至第一幾何特徵圖樣扣的距離， 第一幾何特徵圖樣211的密度可能各不相同，進而用以控制導光 板226上的姐事件之反射路徑。例如，此密度可崎著燈管似 至第一幾何特徵圖樣211的距離之增加而增加。因此，較接近燈 官故的第-幾何特徵圖樣211之密度係小於較遠離燈管似的 第一幾何特徵圖樣211之密度。 每一個第一幾何特徵圖樣與第 一幾何特徵圖樣的大小之範圍 11 201011417 :微米广米。第:幾何特徵圖樣與第二幾何特徵圖樣的 u可依彳尺寸例如液as顯不面板的對角線尺寸。第—幾何 樣m之間的距離隨著第—幾何特徵圖樣加至燈管勺 距離而增加。 餘第二區域B第二幾何特徵圖樣221用以防止導光板挪 因靜電而被吸附至反射板泣。第二幾何特徵圖樣功之大小可能 大於或等於第-幾__ 211之大小。此外，第二幾何特徵 圖樣22!之密度可能小於第一幾何特徵圖樣2ιι之密度。依據本 發明的-實施例，第二幾何特徵圖樣221之密度係小於第 特徵圖樣211中最接近燈管说的最低密度。第二幾何特徵圖樣 221防止狀射至第二區域B攸線的反_鼓_線㈣ht _ ’其係為導光板226巾上邊 ❹ 一幾何特徵 m幾何特徵· 221並不會振散導光板 226上的先線事件。此外，第二幾何特徵圖樣221防止因靜電而使 導光板226與反射板222互相黏附。 介於第二幾何特徵圖樣221中圖樣間相鄰之距離可能為數百 微米，及第二幾何特徵圖樣切的面積可能等於或約概小於第 二區域B的面積。例如，介於第二幾何特徵圖樣221中圖樣間相 鄰範圍約250微米至約_微米。當第二幾何特徵圖樣 的^度比第—區域3小1〇%時’對光線的影響是很輕微的。例如， 當第二幾何特徵難的密度比第二區域B約小5%時，是|法察覺 到光線的顯著變化的。 ’、”見 12 201011417 依據本發明的-實施例，當第-幾何特徵圖樣211接近於燈 管時’圖樣的大小約50微米，及介於第—幾何特徵圖樣2ιι中圖 樣間相鄰之距離可約為14〇微米。當第一幾何特徵圖樣211更遠 於燈管時圖樣的大小約50微米，及，介於第一幾何特徵圖樣2ιι 中圖樣間相鄰之距離可約為5微米。 由於導光板226因第二幾何特徵隨221而不會被吸附於反 射板222，甚至當背光模、组22〇於運作過程中產生熱量時亦是如 ©此，因此可以避免反射板222因為其熱膨騰率與導光板a6之不 同而產生皺摺。因此，由於皺摺使得顯示f幕中的亮度之不同的 情況可被避免，以及顯示品質可因此而改善。 第二幾何特徵圖樣⑵可與第一幾何特徵圖樣211經由使用 印刷方法或射出成形技術而同時被形成。因此，並不需要額外形 成弟一幾何特徵圖樣221的程序。 請參考「第5A圖」所示，其係為依據本發明的「第4圖」之 區域C的放大示意圖。請參考「第5B圖」所示，其係為依據本發 明㈣-貫施例之幾何特徵圖樣的示意圖。請配合參考「第从圖」 與「弟=圖」’只要於第二幾鱗徵· 221沒魏大程度地影 響如同第一區域A的第一幾何特徵圖樣211 -樣多之光線之顯 的情況下’第二區域B的第二幾何槪圖樣221可具有各麵列 方式。換句域，她於第：_ B，第—可為 區域肋擴散光線及提供光線至液晶面板21〇(「第2圖」所 因此第一幾何特徵圖樣221可具有密度小於第一幾何特徵圖樣 13 201011417 211之密度’及可具有介於數百微米的距離D。 依據本發明的—實施例，第一圖樣211與第二圖樣221 何特徵可能有其他形狀。例如，第-圖樣與第二圖樣之幾何^ 的其中之-或是兩者可㈣稜鏡難㈣m pattem)或凸鏡_ (lenticular pattern) ° ’- The appearance of one. Each of the first geometric features 221 may be, for example, a hologram (h〇1〇gmm pattern 211 and a second geometric feature pattern: also referred to as .. may have 201011417 • _ coffee). The first geometric feature pattern 211 and the second geometric feature pattern 221 can be formed by a god brushing method or an injection molding technique mQlding. The first year old 4 inch pattern 211 and the second geometric feature pattern can be formed with the light guide plate 226. According to an embodiment of the present invention, the first geometric feature pattern and the second feature pattern 221 may be the same material as the light guide plate 226. According to the present invention, the real sleeve-geometry pattern m and the second geometric feature pattern can be made of different materials from the light guide plate 226. According to the present invention, the diffuser iffw (not shown) may be provided between the reflecting plate 222 and the light guide plate 226. The first geometric feature pattern is called diffusing light, which is introduced into the light that is directed to the light guide. Due to the first geometric feature pattern 211, the light incident on the light guide plate 226 is conducted and completely reflected in the light guide plate 226. Therefore, a uniform light-emitting plane is produced to be supplied to the liquid crystal panel (10). The first geometric feature pattern buckle has a large size and Φ / or a first geometric feature pattern 211 that is dense enough to transfer a substantial portion of the light incident on the light guide plate 226 to the liquid crystal panel 21G. According to the embodiment of the present invention, the density of the first geometric feature pattern 211 may be different according to the distance from the lamp tube to the “Fig. 3” to the first geometric feature pattern buckle, thereby controlling the light guide plate 226. The reflection path of the sister event. For example, this density may increase as the distance from the lamp to the first geometric feature pattern 211 increases. Therefore, the density of the first geometric feature pattern 211 that is closer to the lamp is less than the density of the first geometric feature pattern 211 that is farther from the lamp. The range of the size of each of the first geometric feature pattern and the first geometric feature pattern 11 201011417: micrometers wide. The first: the geometric feature pattern and the second geometric feature pattern u can depend on the size, for example, the liquid as the diagonal dimension of the panel. The distance between the first and the geometric samples m increases as the first geometric feature pattern is added to the distance of the lamp tube. The second second region B second geometric feature pattern 221 serves to prevent the light guide plate from being attracted to the reflective plate due to static electricity. The size of the second geometric feature pattern may be greater than or equal to the size of the first few __211. Furthermore, the density of the second geometric feature pattern 22! may be less than the density of the first geometric feature pattern 2ι. In accordance with an embodiment of the present invention, the density of the second geometric feature pattern 221 is less than the lowest density in the feature pattern 211 that is closest to the lamp. The second geometric feature pattern 221 prevents the anti-drum_line (four) ht _ ' of the B-line of the second region from being incident on the upper side of the light guide plate 226. A geometric feature m geometric feature 221 does not scatter the light guide plate 226 The first line event on. Further, the second geometric feature pattern 221 prevents the light guide plate 226 and the reflection plate 222 from adhering to each other due to static electricity. The distance between adjacent patterns in the second geometric feature pattern 221 may be several hundred micrometers, and the area cut by the second geometric feature pattern may be equal to or approximately smaller than the area of the second region B. For example, in the second geometric feature pattern 221, the adjacent ranges between the patterns are about 250 microns to about - microns. When the second geometric feature pattern is smaller than the first region 3 by 1%, the effect on the light is very slight. For example, when the density of the second geometric feature is less than about 5% less than the second region B, it is perceived that the light changes significantly. ',' see 12 201011417 According to the embodiment of the present invention, when the first geometric feature pattern 211 is close to the tube, the size of the pattern is about 50 microns, and the distance between the patterns in the first geometric feature pattern 2 ιι It may be about 14 microns. When the first geometric feature pattern 211 is further than the lamp tube, the size of the pattern is about 50 microns, and the distance between the patterns in the first geometric feature pattern 2ιι may be about 5 microns. Since the light guide plate 226 is not adsorbed to the reflective plate 222 due to the second geometric feature, even when the backlight module and the group 22 generate heat during operation, the reflective plate 222 can be avoided because of The thermal volatility is different from that of the light guide plate a6, so that the difference in brightness in the display screen can be avoided due to the wrinkles, and the display quality can be improved. The second geometric feature pattern (2) can be The first geometric feature pattern 211 is simultaneously formed by using a printing method or an injection molding technique. Therefore, it is not necessary to additionally form a program of the geometrical feature pattern 221. Please refer to "Fig. 5A" This is an enlarged schematic view of a region C in accordance with "Fig. 4" of the present invention. Please refer to "Fig. 5B", which is a schematic diagram of the geometric feature pattern according to the fourth embodiment of the present invention. Please refer to the "No. from the map" and "Different = map" as long as the second scale sign 221 does not affect Wei as much as the first geometric feature pattern of the first area A 211 - more than the light In this case, the second geometric mean pattern 221 of the second region B may have a respective faceted manner. In the sentence field, she: _ B, the first - can diffuse light and provide light to the liquid crystal panel 21 为 ("Fig. 2" so the first geometric feature pattern 221 can have a density smaller than the first geometric feature pattern 13 201011417 211 density 'and may have a distance D of hundreds of microns. According to an embodiment of the invention, the first pattern 211 and the second pattern 221 may have other shapes. For example, the first pattern and the second The geometry of the pattern ^ - or both (4) 稜鏡 (4) m pattem) or lenticular _ (lenticular pattern) ° '
雖然本發明以前述之較佳實施例揭露如上，然其並非用 定本發明，任何熟習相像技藝者，在不脫離本發明之精神和範園 内’當可作⑽之更__，誠本㈣之專娜護範圍 本說明書所附之_請專魏_界定者為準。 ' 【圖式簡單說明】 弟1圖係為習知技術之側邊式背賴朗示意圖； 第2圖係為依據本發明的—實施例之液晶顯示器裝置之示意 參 第3圖係為依據本發明的一實施例「第2圖 之 示器裝置的背光模組之示意圖； 液曰曰顯 ―:4圖係為依據本發明的_實施例之背光模組的之導光板平 面不意圖； 圖；ΙΓ圖係為依據本發明的「第4圖」之區域c的放大示意 第 5B is / 青圖。 鱗依縣發明㈣—實蝴之幾何特徵圖樣的示 【主要元件符號說明】 14 201011417While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to be limited by the invention, and the skilled artisan can't The scope of the protection of the _ _ _ _ _ _ _ _ _ _ _ _ _ _ BRIEF DESCRIPTION OF THE DRAWINGS FIG. 2 is a schematic diagram of a side view of a conventional technology; FIG. 2 is a schematic diagram of a liquid crystal display device according to an embodiment of the present invention. In one embodiment of the invention, a schematic diagram of a backlight module of the device of FIG. 2; a liquid crystal display: 4 is a plan view of a light guide plate of a backlight module according to an embodiment of the present invention; The map is an enlarged view of the region 5c of the "Fig. 4" according to the present invention. Invented by the county (4) - the display of the geometric features of the real butterfly [Description of the main components] 14 201011417
20 背光模組 22 反射板 24 燈管 28 燈管導引單元 29 光學片 30 導光板 31 圖樣 210 液晶面板 211 第一幾何特徵圖樣 212 第一基板 214 第二基板 216 連接部 218 印刷電路板 220 背光模組 221 第二幾何特徵圖樣 222 反射板 224 燈管 226 導光板 228 燈管導引單元 229 光學片 230 主支撐件 240 上蓋 15 201011417 250 下蓋 A 第一區域 B 第二區域20 backlight module 22 reflector 24 lamp 28 lamp guiding unit 29 optical sheet 30 light guide plate 31 pattern 210 liquid crystal panel 211 first geometric feature pattern 212 first substrate 214 second substrate 216 connecting portion 218 printed circuit board 220 backlight Module 221 second geometric feature pattern 222 reflector 224 lamp 226 light guide plate 228 lamp guide unit 229 optical sheet 230 main support 240 upper cover 15 201011417 250 lower cover A first area B second area
C 區域C area