M399994 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種具有提升亮度與光均齊度之導光板，以 及使用該導光板之發光裝置’並且特別地，根據本創作之導光 板以及使用該導光板之發光裝置，能夠有效地提升其出光的亮 度與光均齊度。 ' 【先前技術】 液晶面板本身不發光’必須藉由所謂的背光模組 - (back-lightmodule)來達到顯示功能，因此背光模組是液晶圖像 籲 顯示器裝置重要的零組件。背光模組的主要結構由發光光源、 導光板(light guide plate)、光學膜片（例如：稜鏡片、擴散片、 反射片等）、燈源反射罩以及外部結構體(housing、frame等)所 構成。背光模組中的光源要如何有效率的被應用，導光板佔重 要影響因素。 由於背光模組的光源使用效率重點在於導光板上微結構 與其外型設計以及光源的種類。因此，如何對導光板進行有效 率的設計’使得整體出光之亮度與光均齊度表現為主要考量因 素。 · 美國專利公告號5,394,308於專利說明書中指出，導光板 使用網點(dot pattern)的光學結構設計來破壞光線在導光板内 部全反射的條件。將光線於導光板出射面(emitting surface)或稱 出光面來導出’使侧邊的冷陰極燈管線光源轉而形成一面光 源。並利用網點密度(dot density)不同的比例分佈來改善導光板 整個面的出光之亮度(brightness)和光均齊度(uniformity)的表 現。 但是由相似技術之文獻中得知，導光板底面網點的結構設 計將側邊的冷陰極燈管線光源之入射光線進行散射，而穿透出 4 f光板表面時’其出射^ί線無方向性。並且該散射光由 ’使得部分光線其出射之折射角較大，造成朝 二聚能力減弱’因此部分光線會損失而降低光 ^的光p 模組70件的關鍵_皆著重於提升模 構二S 度與機構強度，甚而期望使模組的結 昭成本。因此’此篇專利的技術雖可改善導光 齊度’但卻可能使得導光板在光效能和亮度的 【新型内容】 齊产f 作之—齡在於提供—種具錢升亮度與光均 ί5ίiii導歧之發絲置。並且制地，根據 屮i二ίί板及使用該導光板之發光裝置’能夠有效提升其 出先的讀與辆紐，可解決上耻術存在的問題。 以及之一較佳具體實施例之導光板，其包含一基板 截面的第—稜鏡狀微結構。該基板具有接 之一，f所發射，光線之—人絲以及將該接_光線導出 —^面。該複數組第一稜鏡狀微結構形成於該出光面上。 :。嫌狀微結構包含至少-緊鄰的第—稜鏡狀微結 ^棱鏡狀微結構之第一稜鏡狀微結構的數目隨著 ί大加。每一個第一禮鏡狀微結構具有一個別的 ^^者平行該入光面之一方向延伸之脊線。藉此，由該 之5玄出光面被導出之光線的亮度以及光均齊度被提升。 麻具體實施例中，該導光板中的複數組第一稜鏡狀微結 構係根據下列-公式分佈於該出光面上： 乃 起始值 2' — 18 ^中第/㈣_稜鏡狀微結構之第—稜鏡狀微結構的數 ’ ％·為心組第-稜鏡狀微結構與第(ί‘+1)組第一稜鏡狀微結 的3距’為一從零開始的整數指標，A的數值代表相 R數目之第-稜鏡狀微結構的寬度。 且古t ΐ體實施例中’該導光板之每一個第—棱鏡狀微姑構 二办7日角’其該頂角具有一角度θ1，其範圍係介於85度到 95度之間。 於一具體實施例巾，該出光面可以是-平面或-曲面。 =本創作之另—較佳具體實關之導光板，其中該基板 & 有一與該出光面相對的反射面。該反射面將該接收的光 而t至孩^光面。該導光板進一步包含複數組形成於該反射 娜iii有三角截面之第二稜鏡狀微結構。每一組第二稜鏡狀 i含至少一緊鄰的第二稜鏡狀微結構。每-組第二棱鏡 ，微二構之第二稜鏡狀微結構的數目隨著遠離該人光面而增 二口母個第二稜鏡狀微結構具有一個別的且大體上沿著平行 該入光面之一方向延伸之脊線。 错具體實施例巾’料光板中的複數組第二稜鏡狀微結 構係根據下列公式其中之一分佈於該出光面上： w, =\-16 ui ^ 2v· —32 (16 s v; <29);以及 (v/>29)； υ. = - Λα 八 / 、 曰、中^為第，組第二稜鏡狀微結構之第二稜鏡狀微結構的數 為第^組第二棱鏡狀微結構與第㈣組第二稜鏡狀微結 距’ 為—從零開始的整數指標1的數值代表相 η數目之第二稜鏡狀微結構的寬度。 且古ϋ—具體實施例中’該導光板之每—個第二稜鏡狀微結構 ϋ声之1角，其έ亥頂角具有一角度02,其範圍係介於85度到 於—具體實施例中，該反射面可以是—平面或一曲面a M399994 於一具體實施例中，該反射面遠離該入光面之一端係朝向 該出光面傾斜一角度，該角度之範圍係介於0度到2〇度之間。 根據本創作之一較佳具體實施例之發光裝置，該發光裝置 包含有一光源以及上述之可提升亮度與光均齊度之導光板:該 發光裝置可應用於各種顯示裝置，例如液晶顯示裝置。該光源 透過該導光板能夠有效提升該發光裝置的亮度與光均齊度。、 關於本創作之優點與精神可以藉由以下的創作詳述及所 附圖式得到進一步的瞭解。M399994 V. New description: [New technical field] The present invention relates to a light guide plate having improved brightness and uniformity of light, and a light-emitting device using the same, and in particular, the light guide plate according to the present invention and By using the light-emitting device of the light guide plate, the brightness and light uniformity of the light emitted can be effectively improved. [Prior Art] The liquid crystal panel itself does not emit light. The display function must be achieved by a so-called back-light module. Therefore, the backlight module is an important component of the liquid crystal image calling display device. The main structure of the backlight module is composed of an illuminating light source, a light guide plate, an optical film (for example, a cymbal, a diffusion sheet, a reflection sheet, etc.), a light source reflection cover, and an external structure (housing, frame, etc.). Composition. How to effectively use the light source in the backlight module, the light guide plate accounts for the important factors. Since the light source use efficiency of the backlight module is mainly focused on the microstructure of the light guide plate and its appearance design and the type of the light source. Therefore, how to design the effective efficiency of the light guide plate makes the brightness and uniformity of light of the overall light appear as the main consideration. U.S. Patent No. 5,394,308, the disclosure of which is incorporated herein by reference in its entirety in the entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all Light is emitted from the light emitting surface of the light guide plate or the light surface to make the side light source of the cold cathode lamp line turn to form a light source. The difference in dot density is used to improve the brightness and uniformity of the light exiting the entire surface of the light guide. However, it is known from the literature of similar technology that the structural design of the bottom surface of the light guide plate scatters the incident light of the side of the cold cathode lamp line light source, and when it penetrates the surface of the 4 f light plate, its exit line has no direction. Sex. And the scattered light is made of 'there is a large angle of refraction of the partial light, which causes the dimerization ability to be weakened. Therefore, part of the light will be lost and the light of the light is reduced. The key to the 70-piece is to focus on the lifting of the second structure. The degree of S and the strength of the mechanism are even expected to make the cost of the module. Therefore, 'this patented technology can improve the light guide uniformity', but it may make the light guide plate in the new content of light efficiency and brightness. The age is to provide - the kind of money with brightness and light ί5ίiii The hair of the guide is placed. And the system, according to the 屮i two ί 板 plate and the illuminating device using the light guide plate can effectively improve its initial reading and the new button, can solve the problem of the upper imaginary surgery. And a light guide plate of a preferred embodiment comprising a first domed microstructure of a substrate cross section. The substrate has one of the contacts, f is emitted, the light is the human filament, and the light is extracted from the surface. The first array of first dome-shaped microstructures is formed on the light exit surface. :. The suspected microstructure comprises at least - the immediately adjacent first - braided microjunction. The number of first braided microstructures of the prismatic microstructure is increased with ί. Each of the first mirror-like microstructures has a ridge line extending in a direction parallel to one of the light-incident surfaces. Thereby, the brightness and the uniformity of light of the light which is derived from the light-emitting surface are improved. In a specific embodiment, the first array of microstructures in the light guide plate is distributed on the light exit surface according to the following formula: the starting value is 2' - 18 ^ in the / (four) _ 稜鏡 micro The number of structures - the number of the braided microstructures '% · is the third-shaped microstructure of the first group of the first group and the first one of the first (稜鏡) group of the (ί'+1) group is a zero-based Integer index, the value of A represents the width of the first-稜鏡-like microstructure of the number of phases R. In the embodiment of the ancient t-body, the "the first prism-shaped micro-structure of the light guide plate has a 7-day angle", and the apex angle has an angle θ1 ranging from 85 degrees to 95 degrees. In a specific embodiment, the illuminating surface may be a flat surface or a curved surface. Another preferred embodiment of the present invention is a light guide plate, wherein the substrate & has a reflective surface opposite the light exiting surface. The reflecting surface brings the received light to the matte side. The light guide plate further includes a complex array formed on the second dome-shaped microstructure of the reflection iii having a triangular cross section. Each set of second braids i contains at least one immediately adjacent second braided microstructure. For each set of second prisms, the number of second braided microstructures of the micro-two structures is increased by two apart from the light surface of the human body. The second braided microstructure has an additional and substantially parallel a ridge line extending in one of the light incident faces. The second embodiment of the second embodiment is distributed on the illuminating surface according to one of the following formulas: w, =\-16 ui ^ 2v· —32 (16 sv; <;29); and (v/>29); υ. = - Λα 八 / , 曰, 中 ^ is the first, the number of the second braided microstructure of the second braided microstructure is the group The second prism-like microstructure and the (4)th second meandering junction distance are - the value of the integer index 1 from zero represents the width of the second braided microstructure of the number of phases η. And in the specific embodiment, in the specific embodiment, each corner of the second light-shaped structure of the light guide plate has an angle of 02, and the range is between 85 degrees and - specific In an embodiment, the reflecting surface may be a plane or a curved surface a M399994. In one embodiment, the reflecting surface is inclined away from the light emitting surface by an angle toward the light emitting surface, and the angle ranges from 0 to 0. Degree to between 2 degrees. According to a preferred embodiment of the present invention, the illumination device includes a light source and the above-described light guide plate for improving brightness and uniformity of light: the illumination device can be applied to various display devices such as liquid crystal display devices. The light source can effectively improve the brightness and uniformity of the light through the light guide plate. The advantages and spirit of this creation can be further understood by the following detailed description of the creation and the drawings.
【實施方式】 以下將藉由詳述本創作之數個較佳具體實施例以及實際 應用案例，藉以充分說明本創作之特徵、精神及優點。不 •請參閱圖一與圖二，根據本創作之一較佳具體實施例之導 光板12，其包含一基板1〇2以及複數組具有三角戴面的第一 稜鏡狀微結構122。 如圖一所示’該基板102具有接收一光源所發射的光線之 入光面112以及將該接收的光線導出之一出光面〗μ。該複[Embodiment] The following is a description of several preferred embodiments and practical application examples of the present invention to fully explain the features, spirit and advantages of the present invention. 1 and 2, a light guide plate 12 according to a preferred embodiment of the present invention includes a substrate 1〇2 and a first array of first dome-shaped microstructures 122 having triangular wear. As shown in Fig. 1, the substrate 102 has a light-incident surface 112 for receiving light emitted by a light source and a light-emitting surface of the received light. The complex
數組具有三角截面的第一稜鏡狀微結構122係形成於該 面114上。 如圖一所示，每一組第一稜鏡狀微結構122包含至少一緊 ，的第一稜鏡狀微結構122。每一組第一稜鏡狀微結構122之 ，一稜鏡狀微結構122的數目隨著遠離該入光面1〖2而增加。 每一個第一稜鏡狀微結構122具有—個別的且大體上沿著平 行该入光面112之一方向延伸之脊線132。 於一具體實施例中，如圖一所示，該複數組第一稜鏡狀微 、·。構122係根據下列公式分佈於該出光面η#上： 7 3 =·為=組第-稜鏡_結構122之第—稜鏡狀微結構的 之間的間距，，為-從零開始的整== 數值代表相隨目之第—稜鏡_結構122的寬度。 嫌體實施例中’如圖二所示’每一個第一稜鏡狀微結 ί祕度該頂角丨42具有-角度其範圍係 於一具體實施例中，該出光面114可以是一平面或一曲 面。 …於圖一’根據本創作之另一較佳具體實施例之導光 私品中该基板102並且具有一與該出光面114相對的反 。姐射面116將該接收的光線反射至财光面114。 所示’該導光板12進—步包含複數組形成於該反 ，116上且具有三角截面之第二稜鏡狀微結構124。每一組 气鏡狀微結構m包含至少一緊鄰的第二稜鏡狀微結構 組第二稜鏡狀微結構124之第二稜鏡狀微結構的數 ，者遠離該入光面而增加。每—個第二稜鏡狀微結構124且 有-個別的且大體上沿著平行該人光面之—方向延伸之脊^ 134。 於-具體實施例中，同樣示於圖一，該複數組第二稜鏡狀 微結構124係根據下列公式其中之一分佈於該反射面上U6 : Η-16 (16<ν,·<29);以及 % =2v广 32 (v; > 29 )； ，令⑷為第ί組第二稜鏡狀微結構124之第二稜鏡狀微結構的 數目，V,·為第/組第二棱鏡狀微結構124與第(/+1)組第二稜鏡 狀微結構124之間的間距，/為一從零開始的整數指標，ν，的 數值代表相同數目之第二稜鏡狀微結構124的寬度。 結構Si ΐ實施例中，同樣示於圖二，每—個第二棱鏡狀微 係介於沾度至^^^。。該頂角134具有一角度％，其範圍 面 於具體實施例中，該反射面II6可以是-平面或-曲 齡實施例中，該反射面116遠離該入光面112之一 Ϊ 114傾斜—角度’該角度之棚係介於〇度 算透二施例中，該導光板12之材料係為聚合樹脂類 f4 ’例如’甲基丙細旨、苯乙烯樹脂、聚碳 曰……4。並且利用射出成型之製程製作該導光板12。 二參，圖二’根據本創作之一具體實施例之發 其包含一先源2〇以及一導光板22。 古-所示’該導光板22包含一基板202以及複數組具 t mf—稜鏡狀微結構222。該基板2G2具有接收該 =一射的光線之—人絲212缝賴接收的光線導 〃面214。該複數組具有三角截面的第一棱鏡狀微結 構222係形成於該出光面214上。 ’ ，圖二所示，每一組第一稜鏡狀微結構222包含至少一緊 鄰的第-稜鏡狀微結構222。每-組第-棱鏡狀微結構222之 第一稜鏡狀微結構222的數目隨著遠離該入光面212而增加。 每;-個第-稜鏡狀微結構222具有一個別的且大體上沿9著平 行s玄入光面212之一方向延伸之脊線232。 於-具體實施例中，如圖三所示，該光源2〇為一側式光 源，其中該光源20可以是一點光源或線光源，例如： 極體(LED)或是冷陰極螢光燈管(CCFL)。 x 於-具體實施例中，如圖三所示，該複數組第一稜鏡狀微 ϋ399994 結構222餘據下列公式分佈於該出光面214上·· ’·=2'~18 起始值、=9 ; 及:〈ϋ組f:稜鏡狀微結構222之第一稜鏡狀微結構的 _結構’、22第2二的一狀^構222與第(/+1)組第一稜鏡 數值代表相同數目之“鏡^ 構22^且中’如圖四所示’每-個第-稜鏡狀微結 具有-嶽，其範圍係 面。於一具體實施射，該出絲214可以是—平面或一曲 板另—較佳具體實施例之導光 射板並且具有一與該出光面214相對的反 射面216。献射面216將該接收的光線反射至該出光面心 射面古該If反22進一步包含複數組形成於該反 第面^第二棱鏡狀微結構224。每一組 於一具體實施例中，同樣示於圖三， 微結構224，據下列，中之一分佈='·= 2ν/~32 (ν(· > 29); W广16 (16 9i<29);以及 M, 其中叫為第/組第二棱驗微結構224之第二棱鏡狀微結構的 M399994 f IΊ為第/組第二稜鏡狀微結構224與第(/+1)組第二稜鏡 224之間的間距為一從零開始的整數指標，v，•的 數值代表相同數目之第二稜鏡狀微結構224的寬度。 於一具體實施例中，同樣示於圖四，每一個第二稜鏡狀微 有一頂角234。該頂角234具有一角度仏，其範圍 係介於85度到95度之間。 於一具體實施例中，該反射面216可以是一平面或一曲 面。A first domed microstructure 122 having an array of triangular sections is formed on the face 114. As shown in FIG. 1, each set of first domed microstructures 122 includes at least one tight first domed microstructure 122. For each set of first braided microstructures 122, the number of a braided microstructures 122 increases with distance from the entrance surface 1 . Each of the first domed microstructures 122 has a ridgeline 132 that is individual and extends generally in a direction parallel to one of the light incident faces 112. In a specific embodiment, as shown in FIG. 1, the complex array is firstly shaped. The structure 122 is distributed on the light-emitting surface η# according to the following formula: 7 3 =· is = group - 稜鏡 _ structure 122 - the spacing between the 稜鏡-like microstructures, is - from zero The integer == value represents the width of the corresponding structure - 稜鏡 _ structure 122. In the embodiment of the phantom, as shown in FIG. 2, each of the first 稜鏡-shaped micro-junctions has an angle -42 having an angle which is in a specific embodiment, and the illuminating surface 114 may be a plane. Or a curved surface. In the light guide private product according to another preferred embodiment of the present invention, the substrate 102 has a reverse opposite to the light exit surface 114. The sister's face 116 reflects the received light to the rich side 114. The light guide plate 12 is shown to include a second array of microstructures 124 having a triangular cross section formed on the opposite surface 116. Each set of lenticular microstructures m includes at least one immediately adjacent second braided microstructure group. The number of second braided microstructures of the second braided microstructures 124 increases away from the incident surface. Each of the second braided microstructures 124 has a plurality of ridges 134 extending in a direction substantially parallel to the plane of the person. In a specific embodiment, also shown in FIG. 1, the complex array of second braided microstructures 124 is distributed on the reflective surface U6 according to one of the following formulas: Η-16 (16<ν,·<29); and % = 2v wide 32 (v; > 29 ); , (4) is the number of second braided microstructures of the second braided microstructure 124 of the ί group, V, · is the / group The spacing between the second prismatic microstructure 124 and the (/+1)th second braided microstructure 124, / is an integer index from zero, and the value of ν represents the same number of second turns The width of the microstructures 124. In the structure Si ΐ embodiment, also shown in Fig. 2, each of the second prism-shaped micro-systems is in the range of the adhesion to ^^^. . The apex angle 134 has an angle %, which is in a specific embodiment, and the reflecting surface II6 can be a -planar or curved age embodiment, the reflecting surface 116 is inclined away from one of the light incident surfaces 112 Ϊ 114 - The angle of the shed is in the second embodiment. The material of the light guide plate 12 is a polymer resin f4 'for example, 'methyl propyl styrene, styrene resin, polycarb hydrazine ... 4 . The light guide plate 12 is fabricated by a process of injection molding. The second reference, Fig. 2', according to a specific embodiment of the present invention, comprises a precursor 2 and a light guide 22. The light guide plate 22 includes a substrate 202 and a complex array of t mf-稜鏡 microstructures 222. The substrate 2G2 has a light-receiving light-receiving surface 214 that receives the light. The first prism-shaped microstructure 222 having a triangular cross section of the complex array is formed on the light-emitting surface 214. As shown in FIG. 2, each set of first domed microstructures 222 includes at least one adjacent first domed microstructure 222. The number of first domed microstructures 222 of each set of prism-like microstructures 222 increases as it moves away from the light incident surface 212. Each of the first - domed microstructures 222 has an additional ridge 232 extending generally in the direction of one of the parallel slanted entrances 212. In a specific embodiment, as shown in FIG. 3, the light source 2 is a side light source, wherein the light source 20 can be a point source or a line source, such as: a polar body (LED) or a cold cathode fluorescent tube. (CCFL). In the specific embodiment, as shown in FIG. 3, the first array of the first 稜鏡 ϋ 399 994 994 structure 222 is distributed on the illuminating surface 214 according to the following formula: ···=2'~18 starting value, =9 ; and: <ϋ group f: _ structure of the first braided microstructure of the braided microstructure 222, 22 221 of the second and second sections of the (/+1) group The mirror values represent the same number of "mirrors 22" and "in" as shown in Fig. 4. 'Each-the first-shaped micro-junction has -yue, the range of which is the surface. In a specific implementation, the filament 214 The light guide plate of the preferred embodiment may be a flat or a curved plate and has a reflective surface 216 opposite the light exit surface 214. The exit surface 216 reflects the received light to the exit surface. The surface of the If 22 further comprises a complex array formed on the opposite surface of the second prism-shaped microstructure 224. Each group is shown in a specific embodiment, also shown in Figure 3, the microstructure 224, according to the following, A distribution = '· = 2ν / ~ 32 (ν (· >29); W Guang 16 (16 9i <29); and M, which is called the second prism of the second group of the second prism inspection structure 224 Microstructured M399994 f I Ί is the integer between the second group of microstructures 224 and the second group 224 of the (/+1) group is an integer index from zero, and the value of v, • represents the same number of second. The width of the braided microstructures 224. In one embodiment, also shown in Figure 4, each of the second domes has a apex angle 234. The apex angle 234 has an angle 仏, the range of which is between 85 The degree is between 95 degrees. In one embodiment, the reflective surface 216 can be a plane or a curved surface.
山於一具體實施例中，該反射面216遠離該入光面212之一 ，係朝向該出光面214傾斜-角度，該角度之範圍係介於〇度 到20度之間。 “於一巧實棚巾’鱗絲22讀㈣為聚合樹脂類 巧明度兩的材料’例如，甲基丙職脂、苯乙烯樹脂、聚碳 酸樹脂......’等。並且射出成型之製程製作該導光板22。In one embodiment, the reflecting surface 216 is away from the light incident surface 212 and is inclined to an angle toward the light exiting surface 214, and the angle ranges from a twist to 20 degrees. "Yu Yiqiao shed towel" filament 22 read (four) is a polymer resin type of two materials - for example, methyl propyl fat, styrene resin, polycarbonate resin ... 'etc. and injection molding The light guide plate 22 is fabricated by the process.
於實際應用中嗜光裝置之光源為冷陰極螢光燈管(CCFL) I，利用九點凴度量測法量測先前技術之網點式導光板a、出 光面具有帛—棱餘微結構之導歧b與&絲具有第一棱 鏡狀微結構加上反射面具有第二稜鏡狀微結構之導光板c的 出光亮度分佈。並求它們的光均齊度及亮度平均兩項指標。不 同光學結構之|光板所量取的九點亮度值如表一之⑻、⑼及⑷ 導触亮度為81.22 ed/m2，計算其均齊度為 82.9/。。而導光板b之平均光亮度為％.80cd/m2,其均齋 84.86%。另-導光板e之平均光亮度為Ul91 ，其g齊 度為79.7%。從圖五可以得知，若在不同光學結構導光^反 之^均齊度相當的條件下(均齊度達80%以上），則其導光板c ^較佳的亮度增益效果。相較於原網點式導光板a，導光板c 亮度提升約37.78%。而相較於原網點式導光板a， 亮度提升約19.18%。 13^9994 表一九點亮度量測法之結果(cd/m2) 偵測點 1 2 3 4 5 6 7 8 9 _亮度值 72.781 78.777 74.588 86.062 87.815 79.608 80.439 85.177 85.77 ⑻導光板a 偵測點 1 2 3 4 5 6 7 8 9 亮度值 86.975 100.765 96.112 94.579 102.487 100.901 98.460 92.919 98.011 (b)導光板b 偵測點 1 2 3 4 5 6 7 8 9 亮度值 98.932 105.311 98.454 115.352 117.456 115.210 117.833 123.995 114.685 (c)導光板cIn practical applications, the light source of the glossator is a cold cathode fluorescent lamp (CCFL) I, and the dot-point light guide plate a of the prior art is measured by a nine point 凴 metrology method, and the light exit surface has a 帛-edge microstructure. The guide b and the wire have a first prism-like microstructure plus a light-emitting luminance distribution of the light guide plate c having a second dome-shaped microstructure on the reflecting surface. And ask for their light uniformity and brightness average two indicators. The nine-point brightness values measured by the optical plates of different optical structures are as shown in Tables (8), (9), and (4). The brightness of the guide is 81.22 ed/m2, and the uniformity is 82.9/. . The average brightness of the light guide plate b is %.80 cd/m2, which is 84.86%. In addition, the average brightness of the light guide plate e is Ul91, and its g-ratio is 79.7%. It can be seen from Fig. 5 that if the uniformity of the light guides of different optical structures is equivalent (the uniformity is more than 80%), the light guide plate c^ has a better brightness gain effect. Compared with the original dot-type light guide plate a, the brightness of the light guide plate c is increased by about 37.78%. Compared with the original dot-type light guide plate a, the brightness is increased by about 19.18%. 13^9994 Table IX. Results of lighting measurement method (cd/m2) Detection point 1 2 3 4 5 6 7 8 9 _ Brightness value 72.781 78.777 74.588 86.062 87.815 79.608 80.439 85.177 85.77 (8) Light guide plate a Detection point 1 2 3 4 5 6 7 8 9 Brightness value 86.975 100.765 96.112 94.579 102.487 100.901 98.460 92.919 98.011 (b) Light guide b Detection point 1 2 3 4 5 6 7 8 9 Brightness value 98.932 105.311 98.454 115.352 117.456 115.210 117.833 123.995 114.685 (c ) light guide plate c
Γ.5% °另—導光板f之平均光亮度為36.12 lm/m i出光ί i ·ΓίΓ° 1由圖六可以得知，若在不同光學結構^ 度提升較1原_式料板d’導光板❻ 度提升約28.28%。目較於原網點式導光板d’導光板e則亮 於實際應用中，發光裝置之光源為發光二極體(LED)下， 利用十，點亮度量測法量測先前技術之網點式導光板d、出光 面具有第一稜鏡狀微結構之導光板e與出光面具有第一稜鏡 狀微結構加上反射面具有第二稜鏡狀微結構之導光板f的出光 佈。絲它們的均齊度及亮度平均兩標。依不同光 :、Γ構之導光板’所量取的十三點亮度值如表二之⑻、(b)及(c) 網點式導光板4之平均光亮度為22.7G 1論2，計算其 Ιΐ Γ為89.〇%。而導光板e之平均光亮度為29.12 lm/m2，其 導光 12 M399994Γ.5% ° Another - the average brightness of the light guide plate f is 36.12 lm / mi light ί i · ΓίΓ ° 1 can be seen from Figure 6, if the optical structure is improved in 1 different than the original _ material board d' The light guide plate is increased by about 28.28%. Compared with the original dot-type light guide plate d' light guide plate e is brighter in practical applications, the light source of the light-emitting device is under the light-emitting diode (LED), and the dot-light guide of the prior art is measured by using the ten-lighting measurement method. The light guide plate d and the light-emitting surface have a light-emitting plate e having a first meander-shaped microstructure and a light-emitting cloth having a first meandering microstructure and a light guide plate f having a second meandering microstructure on the light-emitting surface. They have an average of two uniformity in brightness and brightness. According to the different light: the thirteen-point brightness value measured by the light guide plate of the structure is as shown in Table 2 (8), (b) and (c) The average brightness of the dot-type light guide plate 4 is 22.7G. The remaining Γ is 89.〇%. The average brightness of the light guide plate e is 29.12 lm/m2, and its light guide 12 M399994
導光板的發^裝置可之導光板以極具有該 能提升。此外’第-微結構分二^而、光，齊度’可使光效 下列公式： 出先面，其分佈規則係根據 W18 起始值：u; 與第二微結構分佈概射面，齡佈規縣根據T列公式： W/=V/'16 (16&<29);以及 Κ=2ν,·-32 (^>29)； 13 與讀的方^以改與V ’ _截距修正办 本創述’鱗_加清楚描述 來對本創作之料加以^非露的較佳具體實施例 種改變及具相的雜tf’其目的是希望能涵蓋各 疇内。因此，本創作所之專·圍的範 說明作最寬廣的解釋，以& #，她_範·賴根據上述的 等性的安排。蝴_函蓋所対_改變以及具相 M399994 【圖式簡單說明】 圖一係示意地繪示根據本創作之一較佳具體實施例之導 光板結構示意圖。 圖二係為圖一之導光板結構局部放大圖。 圖三係示意地繪示根據本創作之一較佳具體實施例 光裝置結構示意圖。 圖四係為圖三之導光板結構局部放大圖。 ^圖五係為不同光學設計的導光板其光源為冷陰極螢光产 管’其出光亮度和均齊度比較圖。 且 =係為獨光學設計的導缺其統為發光二極體盆 出光壳度和均齊度比較圖。 "、 【主要元件符號說明】 12 :導光板 112 116 124 134 144 入光面 反射面 第二稜鏡狀微結構 脊線 第二稜鏡狀微結構之頂角 102 .基板 114 :出光面 122 :第一棱鏡狀微結構 132 :脊線 142 :第一棱鏡狀微結構之頂角 1 :發光裝置 22 :導光板 212 :入光面 216 :反射面 20 ·光源 202 :基板 214 :出光面 222 :第一稜鏡狀微結構 15 M399994 224 ··第二棱鏡狀微結構 232 :脊線 234 :脊線 242 :第一稜鏡狀微結構之頂角 244 :第二棱鏡狀微結構之頂角 16The light guide plate of the light guide plate can have the light guide plate so as to have the ability to be lifted. In addition, the 'first-microstructure is divided into two, light, and uniformity' can make the following formulas of light effect: the first surface, the distribution rule is based on the W18 starting value: u; and the second microstructure distribution surface, age cloth The county is based on the formula of T: W/=V/'16 (16&<29); and Κ=2ν,·-32 (^>29); 13 and the reading of the square ^ to change with V ' _ From the revision of the book, the creation of the scales is clearly described to the preferred material of the creation of the material and the phase of the miscellaneous tf' is intended to cover the domains. Therefore, the scope of the essays of this essay is the broadest explanation, and &#, she _ Van Lai is based on the above-mentioned equivalence arrangement. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the structure of a light guide plate according to a preferred embodiment of the present invention. Figure 2 is a partial enlarged view of the structure of the light guide plate of Figure 1. Figure 3 is a schematic view showing the structure of an optical device according to a preferred embodiment of the present invention. Figure 4 is a partial enlarged view of the structure of the light guide plate of Figure 3. ^ Figure 5 is a light guide plate with different optical design. The light source is a cold cathode fluorescent tube. The brightness and uniformity of the light output are compared. And = is the design of the single optical design, which is the comparison of the light shell and uniformity of the light-emitting diode. ", [Main component symbol description] 12: light guide plate 112 116 124 134 144 light incident surface reflective surface second braided microstructure ridge line second dome-shaped microstructure apex angle 102. substrate 114: light exit surface 122 : First prism-like microstructure 132 : ridge line 142 : apex angle of first prism-shaped microstructure 1 : light-emitting device 22 : light guide plate 212 : light-incident surface 216 : reflective surface 20 · light source 202 : substrate 214 : light-emitting surface 222 : first braided microstructure 15 M399994 224 · second prismatic microstructure 232: ridge 234: ridge 242: apex angle 244 of the first braided microstructure: apex angle of the second prismatic microstructure 16