M369472 五、新型說明： 【新型所屬之技術領域】 本創作係針對背光模組當中的導光板結構改良，旨在 提供當光線由入光面進入導光板後不易流失，可於導光板 内有效應用，進而提升整體背光模組效率之導光板結構改 良。 【先前技術】 按，-般應用在資訊裝置的液晶顯示器，係可以依照 實際設計之需求，而選擇·直下式或者是側光式的背光 ^架構’如第—圖及第二圖⑴所示’即為—般側光式背 構’主要由點光源u、導光板。、擴散板13 ^鏡組5 14組成，該導光板12包括-人光面m、一 對2 以及—與該底面122相 之-B ’ “點光源U則係設置於對應該人光面121 入之光線反射收、發出之光線’其底面122將該導 兮出光面12η/ ’形成沿各方向均自分散之散射光線， Γ勻分散之光線導出導光板12’導向液 曰曰顯不面板，以達到液晶顯示面板顯示之效果。 之：由 將光線自職之方向射出H2’並由導光板12 線L1由入光面121進入^隹4 δ亥點切、11之部分平行光 導光板12之側㈣出，而^ 12時’該光線L1會直接由 損光線之浐晋 …、法朝出光面123射出，大大折 先線之⑨量，進㈣低背域組之效率。 M369472 另外，該導光板12亦可如第二圖⑻所 二Γγ於導光板12之高度h 2，且該突出部12 4之高ϊ ^ I點光源11之直徑，而各點光源Π之光線則由^ 大出部124射入，使點光源11全部之光線得以由突出; 4進入導光板12，並由導光板12將光線自預期之方向^ 出，使導光板入光面積增加。M369472 V. New Description: [New Technology Field] This creation is aimed at improving the structure of the light guide plate in the backlight module. It is designed to provide easy to lose light when it enters the light guide plate from the light entrance surface, and can be effectively applied in the light guide plate. The structure of the light guide plate, which improves the efficiency of the overall backlight module, is improved. [Prior Art] According to the actual design requirements, the liquid crystal display used in the information device can be selected as follows: direct-lit or edge-lit backlight structure as shown in the first figure and the second figure (1). 'The same as the side-light type back' mainly consists of a point source u, a light guide. The diffuser plate 13 is composed of a mirror group 514. The light guide plate 12 includes a human face m, a pair of 2, and a bottom surface 122-B'. The point source U is disposed on the corresponding human face 121. The light rays reflected and emitted are 'the bottom surface 122 forms the scattered light surface 12η/' which is self-dispersing in all directions, and the uniformly dispersed light is led out to the light guide plate 12' to lead to the liquid smear panel. In order to achieve the effect of the liquid crystal display panel display: the light is emitted from the direction of the self-service H2' and the light guide plate 12 line L1 from the light-incident surface 121 into the ^ 隹 4 δ hai point cut, 11 part of the parallel light guide plate 12 The side (four) out, and ^ 12 hours 'the light L1 will directly be directly damaged by the light..., the law is emitted from the light surface 123, greatly reducing the amount of the first line, and entering the efficiency of the (four) low back group. M369472 In addition, The light guide plate 12 can also be 如γ according to the second figure (8) to the height h 2 of the light guide plate 12, and the height of the protrusion portion 12 4 is the diameter of the light source 11 , and the light of each point source is The large exit portion 124 is incident, so that all the light of the point light source 11 is protruded; 4 enters the light guide plate 12, and is guided by Plate 12 from the light of the intended direction ^ a, the light guide plate area increases.
惟’該突出部124朝導光板之出光面123形成-定角 度傾斜之斜面125，故當點光源11之部分光線U由入光 面121進人導光板12 _，經由該斜面125之折射將光線 朝底面122射入，再經由底面122之折射後，光線L3 則朝出光® 12 3射出，該光線L 3、經由上述多次折射後才得 以朝出光面123射出’大大折損光線之能量，進而降低背 光模組之效率。 【新型内容】 有鑑於此，本創作即在提供一種導光板結構改良，當 光線由入光面進入導光板後不易流失，可於導光板内有效 應用，使用於背光模組中時，亦可提升整體背光模組效率。 本創作之導光板至少包括有一入光面、一與該入光面 相父之底面，以及一與該底面相對之出光面，而複數點光 源係设置於對應該入光面之一侧；其中，該入光面形成至 少一傾斜部，且該傾斜部與底面形成一夾角，該夾角係小 於90度，使點光源之光線由入光面進入導光板後不易流 失，可於導光板内有效應用，進而提升整體背光模組之效 牛 〇 4 M369472 【實施方式】 本創作「導光板結構改良」，其導光板20之結構如第三 圖及第四圖（A)所示之第一實施例，該導光板20係為楔形， 其至少包括有一入光面21、一與該入光面21相交之底面 -22，以及一與該底面22相對之出光面23，而複數點光源3 .係設置於對應該入光面21之一侧，該導光板20於入光面21 處形成一突出部24，使該突出部24之高度H1係高於導光板 • 20之高度H2，且該突出部24之高度H1係大於點光源3之直 徑’而該突出部24朝導光板之出光面23形成一定角度傾斜 之斜面25。 • 其重點在於··該入光面21形成至少一傾斜部211，如圖 - 所示之實施例中，該入光面21形成單一傾斜部211，且該傾 斜部211與底面形成22—夾角A，該夾角A係小於90度，故當 點光源3之部分光線L1由入光面21進入導光板2〇時，由該傾 斜部211將光線L2直接朝底面22射入，經由底面22之折射 φ 後’光線L3則朝出光面23射出，該傾斜部211可減少射入斜 面25之光線，使光線不會因為多次折射而折損能量，令光 線由入光面進入導光板後不易流失，可於導光板内有效應 i 用’使用於背光模組中時’亦可提升整體背光模組效率。 如第四圖所示（A)為本創作之第二實施例，該導光板2〇 係為平板形，其同樣設有入光面21、底面22，以及出光面 23，該入光面21亦形成單一傾斜部211，該點光源3之部分 光線L1由入光面21進入導光板20時，由該傾斜部mi將光線 L2直接朝底面22射入，經由底面22之折射後，光線L3則朝 出光面23射出，該傾斜部211可減少由導光板側面射出之光 M369472 線，令光線由入光面進入導光板後不易流失， 整體背光模組效率。 同樣可提升 如第五圖所示為本創作之第三實施例，該人“ 成有一傾斜部211以及一平面部212，該平面部光面21形 22垂直，亦可達到減少光線流失之效果；當然，2係與底面 可如圖所示為平板形亦可為楔形。 °亥導光板 如第六圖所示為本創作之第四實施例，該 ^ 成有複數傾斜部211，而各傾斜部211間係設有^光面21形 5亥連接部213係與底面22平行，亦可達到減少先接部213， 果，當然，該導光板可如圖所示為平板形亦发爪失之效 。j馬楔·形。 、上述各實施例中之傾斜部及/或平面部可二^ 複數光學微結構，該光學微結構可以為凹入或 v "又 屢槽，s玄溝槽可以為V形或孤形，而各光學士 平溝槽及/或垂直溝槽，如第七圖之第五實施;^可以為水 楔形導光板為例，該傾斜部211設有複數凸出不係以 直溝槽26。 凸出表面之V形垂 如第八圖之第六實施例所示，係以平板道 例，該入光面21形成有一傾斜部211以及—平 j反二 傾斜部211設有複數凹入表面之弧形垂直溝 該 平面部亦可設有光學微結構。 心，▲然，該 如上所述，本創作提供背光模組另一較佳 板結構，爰依法提呈新型專利之申請；惟，以:每、: 明及圖式所示，係本創作較佳實施例者 ^施说 創竹，3丨、，m 儿非从此侷限本 引作，疋以，舉凡與本創作之構造、裝置、 带F1 土 …1寸做等近似、 』者，均應屬本創作之創設目的及申請專利範圍之内。 M369472 【圖式簡單說明】 第一圖係為習用導光板之結構立體圖。 第二圖（A)、（B)係為習用導光板之結構示意圖。 第三圖係為本創作中第一實施例導光板之結構立體圖。 第四圖（A)係為本創作中第一實施例導光板之結構示意圖。 -第四圖（B)係為本創作中第二實施例導光板之結構示意圖。 第五圖係為本創作中第三實施例導光板之結構立體圖。 第六圖係為本創作中第四實施例導光板之結構示意圖。 φ 第七圖係為本創作中第五實施例導光板之結構立體圖。 第八圖係為本創作中第六實施例導光板之結構示意圖。 【主要元件代表符號說明】 點光源11 傾斜部211 導光板12 平面部212 入光面121 連接部213 底面122 底面22 出光面123 出光面23 突出部124 突出部24 斜面125 斜面25 擴散板13 V形垂直溝槽26 棱鏡組合14 弧形垂直溝槽27 導光板20 點光源3 入光面21However, the protrusion 124 forms a slope 125 inclined to the light-emitting surface 123 of the light guide plate. Therefore, when a portion of the light U of the point source 11 enters the light guide plate 12 through the light-incident surface 121, the refraction through the slope 125 The light is incident on the bottom surface 122, and after being refracted through the bottom surface 122, the light L3 is emitted toward the light output plate 12, and the light L3 is emitted through the multiple refractions to emit the energy of the light that greatly dampens the light. Thereby reducing the efficiency of the backlight module. [New content] In view of this, the present invention provides an improved structure of the light guide plate, which is not easily lost when the light enters the light guide plate from the light incident surface, and can be effectively applied in the light guide plate, and can also be used in the backlight module. Improve the efficiency of the overall backlight module. The light guide plate of the present invention comprises at least a light incident surface, a bottom surface opposite to the light incident surface, and a light emitting surface opposite to the bottom surface, and the plurality of point light sources are disposed on one side corresponding to the light incident surface; wherein The light incident surface forms at least one inclined portion, and the inclined portion forms an angle with the bottom surface, and the angle is less than 90 degrees, so that the light of the point light source is not easily lost after entering the light guide plate by the light incident surface, and can be effectively applied in the light guide plate. Further, the effect of the overall backlight module is improved. 4 M369472 [Embodiment] The "light guide plate structure improvement" of the present invention, the structure of the light guide plate 20 is as shown in the third embodiment and the fourth embodiment (A) The light guide plate 20 is formed in a wedge shape, and includes at least a light incident surface 21, a bottom surface -22 intersecting the light incident surface 21, and a light exit surface 23 opposite to the bottom surface 22, and a plurality of point light sources 3. The light guide plate 20 is disposed on one side of the light incident surface 21, and the light guide plate 20 forms a protruding portion 24 at the light incident surface 21 such that the height H1 of the protruding portion 24 is higher than the height H2 of the light guide plate 20, and the protrusion The height H1 of the portion 24 is larger than the diameter of the point source 3 And the light guide plate 24 toward the surface of the projecting portion 23 is formed of the inclined surface 25 is inclined at an angle. The focus of the light-incident surface 21 is to form at least one inclined portion 211. In the embodiment shown in the figure, the light-incident surface 21 forms a single inclined portion 211, and the inclined portion 211 forms an angle with the bottom surface 22 A, the angle A is less than 90 degrees. Therefore, when part of the light L1 of the point light source 3 enters the light guide plate 2 from the light incident surface 21, the light ray L2 is directly incident on the bottom surface 22 by the inclined portion 211, and passes through the bottom surface 22 After the refracting φ, the ray L3 is emitted toward the light-emitting surface 23, and the inclined portion 211 can reduce the light incident on the inclined surface 25, so that the light does not break the energy due to the multiple refraction, so that the light is not easily lost after entering the light guide plate through the light-incident surface. It can be used in the light guide plate. When using 'in the backlight module', it can also improve the efficiency of the overall backlight module. As shown in the fourth figure (A) is a second embodiment of the present invention, the light guide plate 2 is formed in a flat plate shape, and is also provided with a light incident surface 21, a bottom surface 22, and a light exit surface 23, and the light incident surface 21 A single inclined portion 211 is also formed. When the light ray L1 of the point light source 3 enters the light guide plate 20 from the light incident surface 21, the light ray L2 is directly incident on the bottom surface 22 by the inclined portion mi, and the light L3 is refracted through the bottom surface 22. Then, the light exiting surface 23 is emitted. The inclined portion 211 can reduce the line of the light M369472 emitted from the side surface of the light guide plate, so that the light is not easily lost after entering the light guide plate by the light incident surface, and the overall backlight module is efficient. Similarly, as shown in the fifth figure, the third embodiment of the present invention can be improved. The person "has a slope portion 211 and a plane portion 212, and the plane surface portion 22 is perpendicular to the shape of the plane 21, thereby reducing the effect of light loss. Of course, the 2 series and the bottom surface may be in the form of a flat plate or a wedge shape as shown in the figure. The light guide plate according to the sixth embodiment is a fourth embodiment of the present invention, which has a plurality of inclined portions 211, and each The inclined portion 211 is provided with a light-emitting surface 21, and the fifth connecting portion 213 is parallel to the bottom surface 22, and the first connecting portion 213 can be reduced. Of course, the light guiding plate can be a flat plate shape as shown in the figure. The effect of the invention is that the inclined portion and/or the planar portion of the above embodiments may have multiple optical microstructures, and the optical microstructure may be concave or v " The groove may be V-shaped or orphaned, and each of the optical flat grooves and/or vertical grooves, as in the fifth embodiment of the seventh figure; ^ may be a water wedge-shaped light guide plate, the inclined portion 211 is provided with a plurality of The protrusion is not tied to the straight groove 26. The V-shaped shape of the convex surface is as shown in the sixth embodiment of the eighth figure, and is a flat road. For example, the light incident surface 21 is formed with an inclined portion 211 and a flat vertical slanting portion 211 is provided with a curved vertical groove of a plurality of concave surfaces. The planar portion may also be provided with an optical microstructure. The present invention provides another preferred board structure of the backlight module, and the application for a new patent is filed according to law; however, as shown in the following: the preferred embodiment of the present invention is: Chuangzhu, 3丨, m, are not limited by this limitation. If you use the structure, installation, and F1 soil...1 inch, etc., it should be the creation purpose of this creation. M369472 [Simple description of the diagram] The first diagram is a perspective view of the structure of the conventional light guide plate. The second diagram (A) and (B) are schematic diagrams of the structure of the conventional light guide plate. A perspective view of the structure of the light guide plate of the first embodiment in the creation. The fourth diagram (A) is a schematic structural view of the light guide plate of the first embodiment of the present invention. - The fourth figure (B) is the second embodiment of the present invention. Schematic diagram of the structure of the light board. The fifth picture is the third embodiment of the creation. The sixth figure is a schematic view of the structure of the light guide plate according to the fourth embodiment of the present invention. φ The seventh figure is a perspective view of the structure of the light guide plate of the fifth embodiment in the present creation. Schematic diagram of the light guide plate of the sixth embodiment. [Description of main component representative symbols] Point light source 11 inclined portion 211 Light guide plate 12 Plane portion 212 Light incident surface 121 Connection portion 213 Bottom surface 122 Bottom surface 22 Light exit surface 123 Light exit surface 23 Projection portion 124 Projection Portion 24 Inclined surface 125 Inclined surface 25 Diffuser plate 13 V-shaped vertical groove 26 Prism combination 14 Curved vertical groove 27 Light guide plate 20 Point light source 3 Light-in surface 21