M326642 八、新型說明： 【新型所屬之技術領域】 ， 本創作係、涉及-種導光板結構改良，旨在提供一種 可避免大角度光之損失’提高光利用+，並可 ^及擴散片之設置，以達到薄魏設計之導光板結構改 【先前技術】 按，一般液晶顯示裝置（Liquid Crystal Display lcd) =背光模組（Back Light Unit，則）的基本結構組 成如第一圖所示，係由導光板（LGP)ll、設於導光板u 板緣位置的光源12、設於導光板u下方的反射膜片13， 以及设於導光板11與液晶面板17之間的光學膜片 所構成。 、 、其中，導光板Π的主要功能是藉由光散亂原理將光 源12入射的平行光轉換成平面垂直光，但為了達到散射 均光之效果，通常於導光板n與液晶面板17之間所設置 之光學膜片，其主要係依序由下擴散片14、二稜鏡片15 以及上擴散片16所組成，以散射均光之效果；各稜鏡片 15上板面5又有稜叙結構1 $ 1 (稜鏡結構係呈連續鑛 狀)，其接收由導光板η及下擴散片14光線，並= 矛文叙片之稜鏡結構151折射後，其光線之發光角度變大， 進而使視角變大而令亮度降低。 故亦有如第二圖所示之液晶顯示裝置結構，其係由導 M326642 ，光板（LGP)ll、設於導光板u板緣位置的光源12、設於 導光板11下方的反射膜片13，以及設於導光板u與液 晶面板17之間的光學膜片等元件所構成；其中，該光學 膜片主要係依序由一逆稜鏡片15，以及上擴散片16所組 成，其逆稜鏡片15’之底面亦設有複數稜鏡結構151，， 當光線由導光板11射出而進入逆稜鏡片15，時，可縮小 •光線之出光角度’進而縮小視角而令亮度提高。 !·隹，上述兩種液晶顯示裝置結構，均利用增加數光學 膜片之使用不僅增加了成本，且其各光學膜片之組裝，亦 會增加該液晶顯示裝置之厚度，違背了輕 需求。 【新型内容】 於此本創作在於提供一種可避免大角度光之損 ί j尚光tJ料’、並可省去棱鏡片及擴散片之設置，以 潯1化没计之導光板結構改良。 導井a導光板及液晶顯示裝置」之解決手段’係該 以及一盘括有—入光面、一與該入光面相交之底面， 入對之出光面，而光源則係設置於對應該 也切栲f則，其中’該出光面及底面分別設有第一、二 第-:角及Γ二斜;組:;#各— 範圍係如50度，;Γ 各切槽中頂角之取值 取值範圍係35度二;組切槽各切槽中第一斜角之 又55度，以使通過之光線由全反射方式 6 M326642 以一定出 光角度射出 【實施方式] 體運審查委員清楚本創作之結構組成，以及敕 妝連作方式，茲配合圖式說明如下： 夂整M326642 VIII. New description: [New technical field], this creative department, related to the improvement of the structure of the light guide plate, aims to provide a kind of light loss avoiding the increase of light utilization, and the diffusion of the film The configuration of the light guide plate to achieve the thin Wei design [previous technology] Press, the general liquid crystal display device (Liquid Crystal Display lcd) = backlight module (Back Light Unit, then) the basic structural composition as shown in the first figure, The light guide plate (LGP) 11 , the light source 12 disposed at the edge of the light guide plate u, the reflective film 13 disposed under the light guide plate u, and the optical film disposed between the light guide plate 11 and the liquid crystal panel 17 Composition. The main function of the light guide plate 是 is to convert the parallel light incident by the light source 12 into plane vertical light by the principle of light scattering, but in order to achieve the effect of scattering uniform light, usually between the light guide plate n and the liquid crystal panel 17 The optical film is mainly composed of the lower diffusion sheet 14, the second diaphragm 15 and the upper diffusion sheet 16 in order to scatter the uniform light effect; the upper surface 5 of each cymbal 15 has a rib structure 1 $ 1 (the structure of the crucible is continuous ore), which receives the light from the light guide plate η and the lower diffusion sheet 14 and is refracted by the 稜鏡 structure 151 of the spear narration, the illuminating angle of the light becomes larger, and further The angle of view is increased to reduce the brightness. Therefore, there is also a liquid crystal display device structure as shown in the second figure, which is composed of a guide M326642, a light plate (LGP) 11, a light source 12 disposed at a position of the edge of the light guide plate u, and a reflective film 13 disposed under the light guide plate 11. And an optical film disposed between the light guide plate u and the liquid crystal panel 17 and the like; wherein the optical film is mainly composed of a reverse diaphragm 15 and an upper diffusion sheet 16, and the reverse diaphragm The bottom surface of the 15' is also provided with a plurality of cymbal structures 151. When the light is emitted from the light guide plate 11 and enters the reverse cymbal sheet 15, the light illuminating angle of the light can be reduced, thereby reducing the viewing angle and increasing the brightness. The structure of the above two kinds of liquid crystal display devices is not only increased in cost by the use of the increased number of optical films, but also the assembly of the respective optical films increases the thickness of the liquid crystal display device, which is contrary to the light demand. [New content] This creation is to provide a structure that can avoid the loss of large-angle light, and can eliminate the arrangement of the prism sheet and the diffusion sheet, and improve the structure of the light guide plate. The guide shaft a light guide plate and the liquid crystal display device "solution" and the disk include a light-incident surface, a bottom surface intersecting the light-incident surface, and the light-emitting surface is inserted, and the light source is disposed correspondingly Also cut 栲f, where 'the light-emitting surface and the bottom surface are respectively provided with first and second--: angles and slanting angles; group:;#--the range is as 50 degrees, Γ vertices in each grooving The value range is 35 degrees 2; the first bevel angle of each slot in the group slot is 55 degrees, so that the passing light is emitted by the total reflection mode 6 M326642 at a certain angle of light [Embodiment] Clearly understand the structure of this creation, as well as the way of making makeup, the following is a description of the following:
本創作導光板及液晶顯示裝置，主要係斜 式背光模組牵槿φ莫以“衣置」㈣針射側光 ^te9n4 、構中v先板加以改良，如第三圖所示，发道 先板20板端部分為入光面21，苴正 :V 相對於出光面”廿右A 彳刀為出先面22,而 係設置於相交之底面23，而光源3〇 ’:、/ +應忒入光面21之〜側，其光源30可以為點光源 Y如發光二極體），使光線得以自該入光面21射入，再由導 光板20正面之出光面22射出，以達到光源顯示之效果。 切 本案之重點在於：該出光面22及底面23設有第一、二 組切槽24、25，如圖所示之實施例，該第一、二組切 ，24、25係為v型溝槽之結構，其截面具有一頂角^ 第一斜角/3及第二斜角α，如第四圖所示，該第一組切槽 24各切槽中頂角7之取值範圍係75度〜150度，該第二組切 槽25各切槽中第一斜角/5之取值範圍係35度〜55度，以使 通過之光線由全反射方式以一定出光角度射出，可避免大 角度光之損失。 另外，該第一、二組切槽24、25可以接續排列之方式 設置於導光板2〇之出光面22及底面23上，如第四圖所示； 亦可如第五圖所示，各切槽間係具有間距，且該間距呈梯 度式變化，而光源30可係正對於具有間距最大之切槽設 M326642 . 置。 具體實施時，該液晶顯示裝置的背光模組結構如第六 圖所不，係由導光板2〇、設於導光板2〇板緣位置的光源 30、設於導光板2〇下方的反射膜片13,以及設於導光板加 與液晶面板17之間的上擴散片16所構成，其光源3〇之光線 由導光板2G人光面21進人導光板20，部分光線由底面23 之第二組切槽25均勻射出至出光面22，部分光線則由出光 面22之第一組切槽24射出，並由頂角或第一斜角 光?由全反射方式以—定出光角度射二 避免大角度光之損失，且經由頂角或 設計，可提高糾料，並可省去 ^㈣角度 設置，以達到薄型化之設言^去及下擴散片之 行之i ί : ΐ構本創作提供側光式背光模組架另-較佳可 订之¥先紅構，麦依法提呈新型糊 之實施說明及圖式所示，仫士 明，准，以上 此瓣創作，是以:舉較佳實施例者，並非以 等近似、雷同者，均庫屬牛創之，之構造、褒置、特徵 圍之内。 應屬本創作之創設目的及申請專利範 【圖式簡單說明】 f:圖係為Ϊ 一種習用背光模組之結構示咅㈤ 第一圖係為第二種習用 、、思圖。 第三圖係為本創作中I 吴、、且之結構示意圖。 J十〜I戸甲導先板第一奋 第四圖係為本創作中 貝&例之結構立體圖 v先板頂角放大之結構示意圖。 M326642 苐五圖係為本創作中 & 第六圖係為本創作中導反第二實施例之結構示意圖。 九扳第三實施例之結構立體圖。 【元件代表符號說明】 頂角Θ 導光板11 光源12 - 反射膜片13 下擴散片14 稜鏡片15 稜鏡結構151 逆稜鏡片15， 稜鏡結構151， 上擴散片16 液晶面板17 導光板20 入光面21 出光面22 底面23 光源30 第一切槽組24 弟一切槽組2 5 9The light guide plate and the liquid crystal display device of the present invention are mainly slanted backlight modules, which are modified by the "clothing" (four) needle-side light ^te9n4, and the v-first plate in the structure, as shown in the third figure, The plate end portion of the first plate 20 is the light incident surface 21, and the positive: V is relative to the light exit surface. The right A file is the front face 22, and the system is disposed on the bottom surface 23 of the intersection, and the light source 3〇':, / + should The light source 30 can be a point light source Y such as a light-emitting diode, so that light can be incident from the light-incident surface 21, and then emitted from the light-emitting surface 22 of the front surface of the light guide plate 20 to reach The effect of the light source display is as follows: The light-emitting surface 22 and the bottom surface 23 are provided with first and second sets of slots 24, 25, as shown in the embodiment, the first and second sets are cut, 24, 25 The structure of the v-shaped groove has a apex angle ^first bevel angle /3 and a second oblique angle α. As shown in the fourth figure, the apex angle 7 of each slot of the first group of slots 24 The value ranges from 75 degrees to 150 degrees, and the first oblique angle /5 of each slot of the second group of slots 25 ranges from 35 degrees to 55 degrees, so that the light passing through is totally reflected. The first and second sets of slots 24 and 25 can be arranged on the light-emitting surface 22 and the bottom surface 23 of the light guide plate 2, as shown in the fourth figure, in order to prevent the loss of the large-angle light. As shown in the fifth figure, there is a spacing between the slots, and the spacing is changed in a gradient manner, and the light source 30 can be set to the slot having the largest spacing, M326642. The structure of the backlight module of the liquid crystal display device is as shown in FIG. 6 , and is a light guide plate 2 , a light source 30 disposed at a position of the edge of the light guide plate 2 , and a reflective film 13 disposed under the light guide plate 2 , and The upper diffuser 16 is disposed between the light guide plate and the liquid crystal panel 17. The light of the light source 3 is input into the light guide plate 20 by the light guide plate 2G, and the second light is cut by the second group of the bottom surface 23. 25 is evenly emitted to the light exit surface 22, and part of the light is emitted by the first group of slits 24 of the light exit surface 22, and is caused by the apex angle or the first oblique angle light by the total reflection mode to determine the light angle to avoid the large angle light. Loss, and through the top corner or design, can improve the correction, and Go to ^ (four) angle setting to achieve the thinning setting ^ go and the lower diffuser i ί : ΐ 本 本 创作 提供 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧 侧According to the implementation instructions and drawings of the new paste submitted in accordance with the law, the priests and the stipulations of the above-mentioned syllabus are based on: the preferred embodiment, not the similar approximation, the same, the library is a cattle creation, The structure, the installation, and the characteristics of the design should be the creation purpose of the creation and the patent application [simplified description of the drawing] f: the picture is Ϊ a structure of the conventional backlight module (5) The first picture is the first The two kinds of habits and thoughts are the schematic diagrams of the structure of I Wu and . J 10 ~ I 戸 导 先 第一 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四 第四M326642 The fifth picture is the creation and the sixth picture is the structure diagram of the second embodiment of the present invention. A perspective view of the structure of the third embodiment. [Description of Component Symbols] Top Angle Θ Light Guide 11 Light Source 12 - Reflective Film 13 Lower Diffuser 14 15 15 稜鏡 Structure 151 Reverse 15 15, 稜鏡 Structure 151, Upper Diffuser 16 Liquid Crystal Panel 17 Light Guide 20 Light-in surface 21 Light-emitting surface 22 Bottom surface 23 Light source 30 First slot group 24 Brother all slot group 2 5 9