200813562 • 九、發明說明： •【發明所屬之技術領域】 本發明係針對背光模組之結構改良，旨在提供一種可 提高光線輝度，且可降低其他光學膜片之使用，以有效降 低背光模組厚度之背光模組結構改良。 【先前技術】 一般液晶顯示器（Liquid Crystal Display，LCD)的 φ 背光模組的基本結構組成如第一圖所示，係由導光板（LGP) 1 1、設於導光板1 1板緣位置的發光元件1 2 (例如冷 陰極燈官：Cold Cathode Fluorescernt Lamp，CCFL)、 設於導光板1 1下方的反射膜片1 3，以及設於導光板1 1與顯不面板3 〇之間的擴散膜片1 4等元件所構成。 — 其中，導光板1 1的主要功能是藉由光散亂原理將發 . 光兀件1 2入射的直進光轉換成垂直平面光線，但為了達 到散射均光之效果，通常於擴散膜片i 4與顯示面板4 〇 之間會加設有二張增光膜片1 5，並於各增光膜片1 5上 板面設有集光棱鏡機制1 5 1(集光稜鏡機制係呈連續鋸 齒溝槽狀），以散射均光之效果；⑯，另外增加增光膜片之 使用不僅增加了成本，且亦增加背光模組之厚度。 【發明内容】 右。本發明即對導光板的下、上板面分別建構 有主連，鋸齒溝槽狀的第一、二集光棱鏡機制，該下、上 , 板面之弟〜、二集光稜鏡機制係分別成x、γ方向排列， 200813562 板上方設有一稜鏡片’其稜鏡片之上板面亦建橋右 王連續鋸齒溝槽狀的第三集光稜鏡機制，其第二、，構有 稜鏡機制係分別成相同或不同方向排列，使發_本光 導光板及稜鏡片射出之光線輝度較高，且可^ ^經由 膜片之使用，以有效降低背光模組之厚度。、先學 【實施方式】 本發明「背光模組之結構改良」，其背光模級之丄 係，發光元件人射的直進光轉換成垂直平面光線ν光板 如第二圖所示，在具體實施時，導光板2 =件， 材質所製造，並且直接在下、上板面建構有；克力 槽狀的第一、二集光稜鏡機制2 1 1、2 1 2齒溝 光板1 2下、上板面之第―、二集光稜鏡機制2 =於導 1 2係分別成X、Υ方向排列，例如設於下板面 、2 光棱鏡機制2 1 1係成水平排列且具有第—失角，弟一集 面之第二集光稜鏡機制212則形成垂直排列且具J士板 夾角2 1 3，請同時參閱第三圖所示，該第_ ^第二 係介於80度至140度之間。 弟-爽角2X3 其中，該導光板2 1上方設有一棱鏡片2 2， 片2 2之上板面亦建構有呈連續鋸齒溝槽狀的 =稜鏡 鏡機制2 2 1，其第三集光稜鏡機制2 2 1與導光稜 上板面之第二集光稜鏡機制212係分別成相同板21 列，且該第三集光稜鏡機制2 2 1係垂直於發光f向排 3 ’如本圖實施例中，其第二集光稜鏡機制2 1几件2 直排列，故第三集光稜鏡機制2 2 1則形成垂直排=== 6 200813562 有弟四夾角2 22，如第四圖所示，其第四夾角2 22係 介於8 0度至1 〇 〇度之間。200813562 • Nine, invention description: • [Technical field of invention] The present invention is directed to the improvement of the structure of the backlight module, and aims to provide a method for improving the brightness of light and reducing the use of other optical films to effectively reduce the backlight mode. The thickness of the backlight module is improved. [Prior Art] The basic structure of the φ backlight module of a liquid crystal display (LCD) is as shown in the first figure, which is provided by a light guide plate (LGP) 1 1 and is disposed at the edge of the light guide plate 1 1 . The light-emitting element 1 2 (for example, Cold Cathode Fluorescernt Lamp, CCFL), the reflective film 13 disposed under the light guide plate 1 1 , and the diffusion between the light guide plate 11 and the display panel 3 〇 The diaphragm 14 is composed of components. — Among them, the main function of the light guide plate 1 1 is to convert the straight-in light incident from the light-emitting element 12 into a vertical plane light by the principle of light scattering, but in order to achieve the effect of scattering uniform light, usually in the diffusion film i 4 and the display panel 4 〇 will be provided with two brightness enhancement film 15 5, and each of the brightness enhancement film 15 is provided with a collecting prism mechanism on the surface of the plate 1 5 1 (the collection mechanism is continuous sawtooth The groove shape) is used to scatter the uniform light effect; 16, and the use of the addition of the brightness enhancement film not only increases the cost, but also increases the thickness of the backlight module. SUMMARY OF THE INVENTION Right. The invention constructs a first and a second light collecting prism mechanism for the lower and upper plate surfaces of the light guide plate, and the lower and upper plates of the lower and upper plates are respectively arranged. They are arranged in the x and γ directions respectively. There is a cymbal on the top of the 200813562 board. The third surface of the slab is also formed by the slab. The mirror mechanism is arranged in the same or different directions, so that the light emitted from the light guide plate and the cymbal sheet has a high brightness, and can be used through the diaphragm to effectively reduce the thickness of the backlight module. First, the first embodiment of the present invention, the structure improvement of the backlight module, the backlight mode of the backlight system, the direct light of the light-emitting element is converted into a vertical plane light ν optical plate as shown in the second figure, in the specific implementation When the light guide plate 2 = piece, made of material, and directly constructed on the lower and upper plates; the first and second sets of the diaphragm mechanism of the first and second sets of apertures 2 1 1 , 2 1 2 grooved light plate 1 2 The first and second episodes of the upper plate are 2; the guides 1 2 are arranged in the X and Υ directions, for example, they are arranged on the lower plate surface, and the 2 prism mechanism 2 1 1 is horizontally arranged and has the first Deviation, the second episode of the episode of the episode 212 forms a vertical arrangement and has a J 1 angle of 2 1 3, please also refer to the third figure, the second _ ^ second system is between 80 degrees Between 140 degrees. The younger-cool angle 2X3 is provided with a prism sheet 2 2 above the light guide plate 2 1 , and the upper surface of the sheet 2 2 is also constructed with a continuous serrated groove shape 稜鏡 mirror mechanism 2 2 1, the third set The aperture mechanism 2 2 1 and the second light collecting mechanism 212 of the upper surface of the light guiding edge are respectively formed into the same plate 21 columns, and the third optical collecting mechanism 2 2 1 is perpendicular to the luminous f direction 3 'As in the embodiment of the figure, the second set of optical mechanism 2 1 is arranged in two rows, so the third set of optical mechanism 2 2 1 forms a vertical row === 6 200813562 has four angles 2 22, as shown in the fourth figure, the fourth angle 2 22 is between 80 degrees and 1 degree.
具體實施時，該發光元件2 3係設於導光板2 1之板 緣位置，如第五圖所示，而導光板2 1下方則設有反射膜 片2 4 ’以及设於導光板2 1與顯示面板4 〇之間的稜鏡 片2 2專元件所構成背光模組，其發光元件2 3射出之光 線先經由導光板2 1將直進光轉換成垂直平面光線，再進 入稜鏡片2 2後，各集光稜鏡機制使光線在χ、γ方向集 光並调整光線發散角度，並具有聚光、增光及散射均光之 功效，得以增加光線輝度，且可降低其他光學膜片之使用， 以有效降低#紐組之厚度；當然，亦可於稜鏡片2 2盘 顯示面板4 設置擴散片5 Q，以增加光源之擴散效果: 另外，如第六圖所示，該導光板2 1係在其靠近邊侧 的板面區域施以霧化處理，使靠近邊侧的板面形成霧化的 光:機制2 5、，經由霧化的光學機制2 5緩和反向折射進 入導光板的光源，藉以解決f用導純容易在邊側區域形 成党暗不狀課題，使液錢㈣具有 规故杲。 ^ 再者’各集光稜鏡機制可有不同之形式，如第二圖所 ΐ古板面之第一集光稜鏡機制211係成水平排列且 ’而上板面之第二集光稜鏡機制2 1 2則形成垂 U且具有夾角’且該第—集光稜鏡機制2 1 1係為每 j鑛齒狀溝槽為-組，並具㈣隔排列；在第六圖所示 例當中，導光板1 1下板面之第-集光棱鏡機制2 1 1冋樣係成水平排列且具有夾角，上板面之第二集光棱 7 200813562 鏡機制2 1 2則形成垂直排列且具有夾角，不同之處在於 下板面之第一集光稜鏡機制211的鋸齒狀溝槽之間未存 在任何間隔，而係由緊鄰的鋸齒狀溝槽延伸於整個導光板 1 1的下板面，請同時配合參照第五圖所示，整體導光板 1 1之第一集光稜鏡機制2 11係具有第一、二斜邊3 1、3 2之連續鋸齒溝槽，其第一、二斜邊3 1、3 2與 導光板1 1係形成不同角度之第一、二夾角3 1 1、3 2 1 〇 另外，該第三集光稜鏡機制2 2 1與導光板2 1上板 面之第二集光稜鏡機制2 1 2亦可形成X、Y方向排列， 如第七圖所示，其下板面之第一集光稜鏡機制2 1 1係成 水平排列，上板面之第二集光稜鏡機制2 1 2則形成垂直 排列，而稜鏡片2 2上板面之第三集光稜鏡機制2 2 1係 成水平排列，同樣具有聚光、增光及散射均光之功效。 如上所述，本發明提供背光照明單元另一較佳可行的 導光板結構，爰依法提呈發明專利之申請；惟，以上之實 施說明及圖式所示，係本發明較佳實施例者，並非以此侷 限本發明，是以，舉凡與本發明之構造、裝置、特徵等近 似、雷同者，均應屬本發明之創設目的及申請專利範圍之 内。 【圖式簡單說明】 · 第一圖係為習用液晶顯示器之背光模組組成架構圖。 第二圖係為本發明中導光板之結構立體圖。 第三圖係為本發明中第一夾角之結構示意圖。 200813562 ^ 第四圖係為本發明第四夾角之結構示意圖。 第五圖係為本發明中液晶顯示器之背光模組組成架構圖。 第六圖係為本發明中導光板之另一結構立體圖。 第七圖係為本發明中導光板之再一結構立體圖。 【主要元件代表符號說明】 11 —導光板 12 --發光元件 13——反射膜片 ® 14—擴散膜片 15——增光膜片 151一集光棱鏡機制 21—一導光板 ， 2 11一第一集光棱鏡機制 2 12一第二集光棱鏡機制 2 13—第一夾角 2 2 棱鏡片 —22 1—第三集光棱鏡機制 2 2 2 —第四夾角 2 3--發光元件 2 4 反射膜片 2 5 霧化的光學機制 3 1 ---第一斜邊 3 11一第一夾角 3 2--第二斜邊 200813562 3 2 1—第二夾角 4 0--顯示面板 5 0——擴散片In a specific implementation, the light-emitting element 23 is disposed at a plate edge position of the light guide plate 21, as shown in FIG. 5, and a reflective film 24' is disposed under the light guide plate 21 and is disposed on the light guide plate 2 The backlight module formed by the special component of the cymbal 2 2 between the display panel 4 and the illuminating element 2 3 converts the straight light into a vertical plane light through the light guide plate 2 1 and then enters the cymbal 2 2 . Each set of optical mechanism allows the light to collect light in the χ, γ direction and adjust the light divergence angle, and has the effect of concentrating, illuminating and scattering the light, thereby increasing the brightness of the light and reducing the use of other optical films. In order to effectively reduce the thickness of the #纽组; of course, it is also possible to provide the diffusion sheet 5 Q on the 22 panel display panel 4 to increase the diffusion effect of the light source: In addition, as shown in the sixth diagram, the light guide panel 2 1 Applying atomization treatment to the surface of the plate near the side to form atomized light on the side of the plate near the side: mechanism 25, mitigating the source of the reverse refracting into the light guide plate via the atomizing optical mechanism 25 In order to solve the problem of f, it is easy to form in the side region. No dark object like, (iv) a liquid having a regulated so Gao money. ^ Furthermore, each set of optical mechanisms can have different forms. For example, the first set of optical mechanisms 211 of the ancient panels in the second figure are horizontally arranged and the second set of upper plates The mechanism 2 1 2 forms a vertical U and has an angle ' and the first-collecting mechanism 2 1 1 is a group of j-toothed grooves, and has a (four) partition; in the example shown in the sixth figure The first light collecting prism mechanism of the lower surface of the light guide plate 1 1 1 1 is arranged horizontally and has an included angle, and the second light collecting edge 7 of the upper surface is formed in a vertical arrangement and has a mirror mechanism 2 1 2 The angle is different, that is, there is no gap between the zigzag grooves of the first collecting mechanism 211 of the lower plate surface, and the next zigzag groove extends from the lower plate surface of the entire light guiding plate 1 1 Please also refer to the fifth figure, the first light collecting mechanism 2 11 of the whole light guide plate 1 has a continuous sawtooth groove of the first and second oblique sides 3 1 , 3 2 , the first and second The oblique sides 3 1 , 3 2 and the light guide plate 1 1 form different angles of the first and second angles 3 1 1 , 3 2 1 〇 In addition, the third collection aperture mechanism 2 2 1 and the second collecting mechanism 2 1 2 of the upper surface of the light guide plate 2 1 can also be arranged in the X and Y directions, as shown in the seventh figure, the first collecting mechanism 2 1 of the lower plate surface The 1 series is arranged horizontally, and the second episode mechanism 2 1 2 of the upper plate surface forms a vertical arrangement, and the third set optical mechanism 2 2 1 of the upper surface of the crotch plate 2 is horizontally arranged, It has the effect of concentrating, adding light and scattering light. As described above, the present invention provides another preferred light guide plate structure for a backlight unit, and the invention patent application is provided according to the law; however, the above embodiments and drawings show a preferred embodiment of the present invention. The present invention is not limited thereto, and it should be construed that the structures, devices, features, and the like of the present invention are similar to those of the present invention. [Simple description of the diagram] · The first diagram is the composition diagram of the backlight module of the conventional liquid crystal display. The second figure is a perspective view of the structure of the light guide plate of the present invention. The third figure is a schematic structural view of the first angle in the present invention. 200813562 ^ The fourth figure is a schematic diagram of the structure of the fourth angle of the present invention. The fifth figure is a structural diagram of the backlight module of the liquid crystal display of the present invention. The sixth drawing is another perspective view of the structure of the light guide plate of the present invention. The seventh drawing is a further perspective view of the light guide plate of the present invention. [Main component representative symbol description] 11 - Light guide plate 12 - Light-emitting element 13 - Reflective diaphragm ® 14 - Diffusion diaphragm 15 - Light-increasing diaphragm 151 - Light collecting prism mechanism 21 - One light guide plate, 2 11 one A set of optical prism mechanism 2 12 a second collecting prism mechanism 2 13 - first angle 2 2 prism sheet - 22 1 - third collecting prism mechanism 2 2 2 - fourth angle 2 3--lighting element 2 4 reflection Diaphragm 2 5 Optical mechanism of atomization 3 1 --- First oblique side 3 11 - First angle 3 2 - Second oblique side 200813562 3 2 1 - Second angle 4 0 - Display panel 5 0 - Diffusion sheet