201122666 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種背光模組，特別是一種具有非等距排 列之發光二極體之背光模組。 【先前技術】 參考圖1 ’顯示習知側光式背光模組之俯視示意圖。該 背光模組1包括一導光板11及複數個發光二極體丨3。該導 光板11具有一入光面111、一出光面112及一底面，該底面 及/或該出光面112具有複數個網點12。該等發光二極體13 係位於一基板14上，該等發光二極體丨3係面對該導光板11 之該入光面111。 參考圖2，顯示習知側光式背光模組中導光板上網點之 分佈曲線示意圖。在該背光模組丨中，在平行該導光板u 入光面111之方向（A到B方向），該等網點12之密度分佈方 式為.位於該導光板I1之二側最密，位於該導光板11之中 央夂社、，位於該導光板11之側邊與中央間之位置最疏。亦 即，在圖1中，沿著八到8的方向，該等網點12之分佈為： 最密、最疏、次密、最疏、最密，使得圖2之曲線呈現類 形此外’在垂直該導光板11入光面111之方向（I到II方201122666 VI. Description of the Invention: [Technical Field] The present invention relates to a backlight module, and more particularly to a backlight module having a light-emitting diode that is not equidistantly arranged. [Prior Art] A schematic top view of a conventional edge-lit backlight module is shown with reference to FIG. The backlight module 1 includes a light guide plate 11 and a plurality of light emitting diodes 3. The light guide plate 11 has a light incident surface 111, a light exit surface 112 and a bottom surface. The bottom surface and/or the light exit surface 112 have a plurality of dots 12 . The light-emitting diodes 13 are disposed on a substrate 14 facing the light-incident surface 111 of the light guide plate 11. Referring to FIG. 2, a schematic diagram showing a distribution curve of a light guide plate access point in a conventional side-lit backlight module is shown. In the backlight module, in the direction parallel to the light-incident surface 111 of the light guide plate (A to B direction), the density distribution of the dots 12 is the most dense on the two sides of the light guide plate I1. The center of the light guide plate 11 is located at the side between the side of the light guide plate 11 and the center. That is, in Fig. 1, along the direction of eight to eight, the distribution of the dots 12 is: the densest, the most sparse, the second dense, the most sparse, and the densest, so that the curve of Fig. 2 presents a type of shape. Vertically the direction of the light guide plate 11 into the light surface 111 (I to II side)
α )該等網點12之岔度分佈方式為：越靠近該導光板U 入光面111越疏，越遠離該導光板u入光面U1越密。亦 ?在圖1中，沿著1到11的方向，該等網點12之分佈為： 疏至密。 參考圖3 ,顯示習知侧光式背光模組中發光二極體之分 [S] 142370,(|〇ς 201122666 佈曲線示意圖°在該背光模組1中，料發光二極體13係 均勻分佈於該基板14上’換言之，該等發光二極體η間之 間距皆相等。亦即，在圖1中，沿著A到B的方向，該等發 光二極體13之分佈密度皆相$，使得圖3之曲線呈現水平 線。 在該背光模組1中，由於位於最二外側之發光二極體13 只具一相鄰發光二極體，因此該導光板側端之亮度較 暗。為了改善此-缺點，必須藉由上述該等網點12之分佈 方式，將光源重新分佈，由側邊出光方向導向垂直出射之 正向光源’以尋求較佳的亮度分佈。 參考圖4 ’顯示習知側光式背光模組中該導光板之出光 面之亮度分佈曲線示意圖。在該背光模組丨中，雖然該等 網點12之分佈經由特殊設計，但是實際上該導光板。二側 端之亮度仍然偏暗。亦即，在圖丨中，沿著八到3的方向， 該導光板11之出光面112之亮度之分佈係為由暗逐漸轉 壳，持續一段距離後再由亮逐漸轉暗，使得圖4之曲線呈 現梯形。 因此，有必要提供一創新且富進步性的具有非等距排列 之發光二極體之背光模組，以解決上述導光板網點製作不 易及輝度不均勻的問題。 【發明内容】 本發明係提供一種具有非等距排列之發光二極體之背光 模組，其包括一導光板及複數個發光二極體。該導光板具 有一入光面、一出光面及一底面，該出光面係相對設置於 [S] 142370.doc 201122666 該底面，該入光面係設置於該出光面與該底面之間，且該 導光板具有複數個網點。 該等發光二極體係位於一基板上，該等發光二極體係面 對該導光板之該入光面，該基板依序定義出一第一分佈區 域、一第二分佈區域、一第三分佈區域、一第四分佈區域 及一第五分佈區域，該第一分佈區域及該第五分佈區域係 分別位於該基板之二側，該第二分佈區域係位於該第一分 佈區域及該第三分佈區域之間，該第四分佈區域係位於該 第二分佈區域及該第五分佈區域之間，其中位於該第一分 佈區域内之發光二極體之分佈密度係大於位於該第二分佈 區域内之發光二極體之分佈密度，位於該第三分佈區域内 之發光二極體之分佈密度係大於位於該第二分佈區域内之 發光二極體之分佈密度，位於該第五分佈區域内之發光二 極體之分佈密度係大於位於該第四分佈區域内之發光二極 體之刀佈畨度’位於該第三分佈區域内之發光二極體之分 佈密度係大於位於該第四分佈區域内之發光二極體之分佈 密度。 在本發明中’由於該等發光二極體之特殊排列方式可 使該導光板在不需要特殊網點排列之情況下，即可使其出 光面具有較高亮度及較均勻之亮度分佈，而且可以提供較 佳的設計空間。 【實施方式】 參考圖5，顯示本發明背光模組之較佳實施例之俯視示 忍圖。參考圖9，顯示本發明中導光板之第一實施例之剖 m 142370.doc 201122666 視示意圖，其中圖9係圖5中沿C-D線之局部剖視放大示意 圖。該背光模組2包括一導光板21及複數個發光二極體 23。該導光板21具有一入光面211、一出光面212及一底面 213’該導光板21具有複數個網點22，其中該等網點22可 設置於該底面213或該出光面212、或該底面213及該出光 面212。在本實施例中’該等網點22係設置於該底面21；3。 該等網點22係用以破壞光線於該導光板21中之全反射而 使光線射出該導光板21，且該等網點22係為印刷網點或結 構網點。 該等發光二極體23係位於一基板24上，該等發光二極體 23係面對該導光板21之該入光面211。 參考圖6，顯示本發明背光模組之較佳實施例中網點之 分佈曲線示意圖。在圖5之該背光模組2中，該等網點22之 分佈方式不需經由特殊設計。在本實施例中，在平行該導 光板21入光面211之方向（C到D方向），該等網點22係均勻 分佈，該等網點22間之間距皆相等。亦即，在圖5中，沿 著C到D的方向，言亥等網點22之分佈密度皆相同，使得_ 之曲線呈現水平線。此外，在垂直該導光板21入光面a" 之方向（III到IV方向），該等網點22之密度分佈方式為：越 靠近該導光板21入光面211越疏，越遠離該導光板21入光 面211越密”亦即’在圖5中，沿著mmv的方向，該等網 點22之分佈為：疏至密。 參考圖7 ’顯示本發明背光模組之較佳實施例中發光二 極體之分佈曲線示意圖。在圖5之該背光模組2中，該等網 142370.doc 201122666 點22之密度分佈如下所述。於該基板24依序定義出一第一 刀佈Q域E、一第二分佈區域F、一第三分佈區域〇、一第 四分佈區域Η及一第五分佈區域I。該第一分佈區域£及該 第五分佈區域I係分別位於該基板24之二側，該第三分佈 區域G係位於該基板24之中央，該第二分佈區域f係位於該 第一分佈區域Ε及該第三分佈區域G之間，該第四分佈區 域Η係位於該第三分佈區域〇及該第五分佈區域〗之間。位 於該第一分佈區域Ε内之發光二極體23之分佈密度係大於 位於該第二分佈區域F内之發光二極體23之分佈密度，位 於該第三分佈區域G内之發光二極體23之分佈密度係大於 位於該第二分佈區域！?内之發光二極體23之分佈密度位 於該第五分佈區域I内之發光二極體23之分佈密度係大於 位於該第四分佈區域Η内之發光二極體23之分佈密度，位 於該第三分佈區域G内之發光二極體23之分佈密度係大於 位於該第四分佈區域Η内之發光二極體23之分佈密度。 較佳地’位於該第一分佈區域Ε内之發光二極體23之分 佈密度係大於位於該第三分佈區域G内之發光二極體23之 分佈密度’位於該第五分佈區域I内之發光二極體23之分 佈密度係大於位於該第三分佈區域G内之發光二極體23之 分佈密度。而且’位於該第一分佈區域Ε及該第五分佈區 域I内之發光二極體23之分佈密度係相等，位於該第二分 佈區域F及該第四分佈區域η内之發光二極體23之分佈密度 係相等。 換言之’位於該第一分佈區域Ε内之發光二極體23間之 142370.doc 201122666 間距係為第-間距Pl，位於該第二分佈區❹内之發光二 極體23間之間距係為第-間 ^ 弟一間距从，位於該第三分佈區域 G内之發光二極體23間之間距係為第三間距从，… 第四分佈區域Η内之發光二極心間之間距係為第四㈣α) The distribution of the twists of the dots 12 is such that the closer to the light guide surface of the light guide plate U, the more dense the light entrance surface U1 is. Also, in Fig. 1, along the direction of 1 to 11, the distribution of the dots 12 is: sparse to dense. Referring to FIG. 3, the light-emitting diode of the conventional side-lit backlight module is divided into [S] 142370, (|〇ς 201122666 is a schematic diagram of the curve. In the backlight module 1, the light-emitting diode 13 is uniform. Distributed on the substrate 14 'In other words, the distance between the light-emitting diodes η is equal. That is, in FIG. 1, the distribution densities of the light-emitting diodes 13 are in the direction of A to B. $, the curve of Fig. 3 is rendered horizontal. In the backlight module 1, since the light-emitting diode 13 located at the outermost side has only one adjacent light-emitting diode, the brightness of the side end of the light guide plate is dark. In order to improve this-disadvantage, the light source must be redistributed by the distribution of the above-mentioned dots 12, and the side light-emitting direction is directed to the forward-emitted forward light source' to seek a better luminance distribution. A schematic diagram of a brightness distribution curve of a light-emitting surface of the light guide plate in the backlight module. In the backlight module, although the distribution of the dots 12 is specially designed, the light guide plate is actually The brightness is still dark. That is, in the picture In the direction of eight to three, the brightness of the light-emitting surface 112 of the light guide plate 11 is gradually shifted from the dark to the shell, and then the light is gradually turned dark after a certain distance, so that the curve of FIG. 4 is trapezoidal. It is necessary to provide an innovative and progressive backlight module with non-equidistant array of light-emitting diodes, so as to solve the problem that the light guide plate dots are not easy to fabricate and the brightness is uneven. The backlight module of the non-equidistant arrangement of the light-emitting diode includes a light guide plate and a plurality of light-emitting diodes. The light guide plate has a light-incident surface, a light-emitting surface and a bottom surface, and the light-emitting surface is oppositely disposed on the light-emitting surface [S] 142370.doc 201122666 The bottom surface, the light incident surface is disposed between the light emitting surface and the bottom surface, and the light guide plate has a plurality of dots. The light emitting diode systems are located on a substrate, and the light emitting two The pole system faces the light incident surface of the light guide plate, and the substrate sequentially defines a first distribution area, a second distribution area, a third distribution area, a fourth distribution area and a fifth distribution area. The first distribution area and the fifth distribution area are respectively located on two sides of the substrate, and the second distribution area is located between the first distribution area and the third distribution area, and the fourth distribution area is located at the first Between the second distribution region and the fifth distribution region, wherein the distribution density of the light-emitting diodes located in the first distribution region is greater than the distribution density of the light-emitting diodes located in the second distribution region, located in the third The distribution density of the light-emitting diodes in the distribution region is greater than the distribution density of the light-emitting diodes located in the second distribution region, and the distribution density of the light-emitting diodes located in the fifth distribution region is greater than that at the fourth The distribution density of the illuminating diode of the illuminating diode in the distribution region is larger than the distribution density of the illuminating diode located in the fourth distribution region. In the present invention, due to the special arrangement of the light-emitting diodes, the light guide plate can have a higher brightness and a uniform brightness distribution without requiring special dot arrangement. Provide better design space. [Embodiment] Referring to Figure 5, there is shown a top view of a preferred embodiment of a backlight module of the present invention. Referring to Fig. 9, there is shown a cross-sectional view of a first embodiment of a light guide plate of the present invention, which is a schematic cross-sectional view taken along line C-D of Fig. 5. The backlight module 2 includes a light guide plate 21 and a plurality of light emitting diodes 23. The light guide plate 21 has a light incident surface 211, a light exit surface 212, and a bottom surface 213'. The light guide plate 21 has a plurality of dots 22, wherein the mesh dots 22 can be disposed on the bottom surface 213 or the light exit surface 212, or the bottom surface. 213 and the light exit surface 212. In the present embodiment, the dots 22 are disposed on the bottom surface 21; The dots 22 are used to break the total reflection of light in the light guide plate 21 to emit light out of the light guide plate 21, and the dots 22 are printed dots or structural dots. The light-emitting diodes 23 are disposed on a substrate 24, and the light-emitting diodes 23 face the light-incident surface 211 of the light guide plate 21. Referring to Figure 6, there is shown a schematic diagram showing the distribution curve of the dots in the preferred embodiment of the backlight module of the present invention. In the backlight module 2 of Fig. 5, the distribution of the dots 22 does not require special design. In this embodiment, in the direction parallel to the light-incident surface 211 of the light guide plate 21 (C to D direction), the dots 22 are evenly distributed, and the distance between the dots 22 is equal. That is, in Fig. 5, the distribution density of the dots 22 such as Yanhai is the same in the direction from C to D, so that the curve of _ assumes a horizontal line. In addition, in the direction perpendicular to the light incident surface a" (III to IV direction), the density distribution of the mesh dots 22 is such that the closer to the light incident surface 211 of the light guide plate 21, the farther away from the light guide plate. The denser the entrance surface 211 is, that is, in Figure 5, along the direction of mmv, the distribution of the dots 22 is: sparse to dense. Referring to Figure 7', a preferred embodiment of the backlight module of the present invention is shown. Schematic diagram of the distribution curve of the light-emitting diodes. In the backlight module 2 of FIG. 5, the density distribution of the nets 142370.doc 201122666 points 22 is as follows. A first knife cloth Q is sequentially defined on the substrate 24. a field E, a second distribution area F, a third distribution area 〇, a fourth distribution area Η, and a fifth distribution area I. The first distribution area £ and the fifth distribution area I are respectively located on the substrate 24 On the second side, the third distribution area G is located at the center of the substrate 24, and the second distribution area f is located between the first distribution area Ε and the third distribution area G, and the fourth distribution area is located at the second distribution area Between the third distribution area 该 and the fifth distribution area 〗 The distribution density of the light-emitting diodes 23 in the cloth region is larger than the distribution density of the light-emitting diodes 23 located in the second distribution region F, and the distribution density of the light-emitting diodes 23 located in the third distribution region G a distribution density of the light-emitting diodes 23 in which the distribution density of the light-emitting diodes 23 located in the second distribution region is located in the fifth distribution region I is larger than that in the fourth distribution region The distribution density of the polar body 23, the distribution density of the light-emitting diodes 23 located in the third distribution region G is greater than the distribution density of the light-emitting diodes 23 located in the fourth distribution region 。. The distribution density of the light-emitting diodes 23 in the first distribution region is larger than the distribution density of the light-emitting diodes 23 located in the third distribution region G, and the light-emitting diodes 23 located in the fifth distribution region I The distribution density is greater than the distribution density of the light-emitting diodes 23 located in the third distribution region G. And the distribution densities of the light-emitting diodes 23 located in the first distribution region Ε and the fifth distribution region I are equal. Located at The distribution density of the two distribution regions F and the light-emitting diodes 23 in the fourth distribution region η are equal. In other words, the distance between the light-emitting diodes 23 in the first distribution region 142 142370.doc 201122666 is the first - a distance P1, the distance between the light-emitting diodes 23 located in the second distribution region is a distance between the first and second electrodes, and the distance between the light-emitting diodes 23 located in the third distribution region G For the third spacing from,... The distance between the dipoles in the fourth distribution area is the fourth (four)
Μ，位於該第五分佈區域1内之發光二極體23間之間距 係為第五間距Ρ8。該第一間距Ρι係小於該第二間距㈣， 該第三間距1>4，!>5係小於該第二間ffip2，p3，該第五間距Μ 小於該第四間距Ρ6，Ρ7,該第三間距Μ係小於該第四間距 p6，p7。較佳地，該第—間距Ρι係小於該第三間距p4，p5，該 第五間距!>8係小於該第三間距P4，p5,該第一間距Pi係等於 該第五間距P8，該第二間距P2，P3係等於該第四間距Μ。 因此’在圖5中’沿著的方向，該等發光二極體U =分佈情況由該基板24之區域依序係為：密、疏、 密疏密，較佳為：最密、疏、次密、疏、最密，使得 圖7之曲線呈現類w形。 ▲參考圖8,顯示本發明側光式背光模組之較佳實施例中 。亥導光板之出光面之亮度分佈曲線示意圖。在該背光模組 2中’沿著圖5中C到D的方向，該導光板21之出光面212之 亮度之分佈係大致上為均亮’僅於中央區域之亮度稍高， 使得圖8之曲線呈現中間略微突起之水平線。 在該背光模组2中，由於該等發光二極體23之特殊排列 方式可使该導光板2 1在不需要特殊網點排列之情況下， 即可使其出光面212具有較高亮度及較均勻之亮度分佈， 而且可以提供較佳的設計空間。 m 142370.doc 201122666 參考圖ίο，顯示本發明中導光板之第二實施例之剖視示 意圖。該導光板21A之出光面212係為一微結構面，該微结 構面具有至少一微結構，且該微結構之形狀係為V型槽 (V-Cut) ’二個V型槽間形成一突出部214。該突出部214之 頂端具有一脊軸216’且該脊軸216方向垂直於該基板 24(圖5)之一長邊。以圖5為例，該脊軸216方向垂直圖5中 之C-D線。在本實施例中，該等網點22係分佈於該出光面 2 1 2，即該微結構面上。 參考圖11，顯示本發明中導光板之第三實施例之剖視示 意圖。本實施例之導光板21B與該第二實施例之導光板 21A(圖10)大致相同，其不同處在於，在本實施例中，該 等網點22係分佈於該底面213。 參考圖12 ’顯示本發明中導光板之第四實施例之剖視示 思圖。該導光板21C之出光面2 12係為一微結構面，該微結 構面具有至少一微結構，且該微結構之形狀係為雙凸透鏡 (Lenticular)215。在本實施例中，該等網點22係分佈於該 出光面212，即該微結構面上。 參考圖13 ’顯示本發明中導光板之第五實施例之剖視示 意圖。本實施例之導光板21D與該第四實施例之導光板 21 C(圖12)大致相同，其不同處在於，在本實施例中，該 等網點22係分佈於該底面213。 上述實施例僅為說明本發明之原理及其功效，並非限制 本發明’因此習於此技術之人士對上述實施例進行修改及 變化仍不脫本發明之精神。本發明之權利範圍應如後述之 142370.doc 201122666 申請專利範圍所列。 【圖式簡單說明】 圖1顯示習知側光式背光模組之俯視示意圖； 圖2顯示習知側光式背光模組中網點之分佈曲線示惫 圖； -不μ 圖3顯示習知側光式背光模組中發光二極體之分佈曲線 不意圖； 圖4顯示習知側光式背光模組中該導光板之出光面之亮 度分佈曲線示意圖； ~ 圖5顯示本發明背光模組之較佳實施例之俯視示意圖； 圖6顯示本發明背光模組之較佳實施例中網點之分佈曲 線示意圖； 圖7顯示本發明背光模組之較佳實施例中發光二極體之 分佈曲線示意圖； 圖8顯示本發明側光式背光模組之較佳實施例中該導光 板之出光面之免度分佈曲線示意圖； 圖9顯示本發明中導光板之第一實施例之剖視示意圖； 圖10顯不本發明中導光板之第二實施例之剖視示意圖； 圖11顯不本發明中導光板之第三實施例之剖視示意圖； 圖12顯示本發明t導光板之第四實施例之剖視示意 圖；及 圖13顯不本發明中導光板之第五實施例之剖視示意圖。 【主要元件符號說明】 1 習知背光模組 142370.doc •10- 201122666That is, the distance between the light-emitting diodes 23 located in the fifth distribution region 1 is the fifth pitch Ρ8. The first spacing Ρι is smaller than the second spacing (four), the third spacing 1 > 4, !> 5 is smaller than the second interval ffip2, p3, and the fifth spacing Μ is smaller than the fourth spacing Ρ6, Ρ7, The third pitch Μ is smaller than the fourth pitch p6, p7. Preferably, the first spacing Ρι is smaller than the third spacing p4, p5, the fifth spacing!>8 is smaller than the third spacing P4, p5, and the first spacing Pi is equal to the fifth spacing P8, The second pitch P2, P3 is equal to the fourth pitch Μ. Therefore, in the direction of 'in FIG. 5', the distribution of the light-emitting diode U= is sequentially determined by the area of the substrate 24: dense, sparse, dense and dense, preferably: the most dense, sparse, The second dense, sparse, and densest, so that the curve of Figure 7 presents a w-like shape. ▲ Referring to Figure 8, there is shown a preferred embodiment of the edge-lit backlight module of the present invention. Schematic diagram of the brightness distribution curve of the light-emitting surface of the light guide plate. In the backlight module 2, 'the distribution of the brightness of the light-emitting surface 212 of the light guide plate 21 is substantially brighter in the direction of C to D in FIG. 5, and the brightness is only slightly higher in the central region, so that FIG. 8 The curve shows a horizontal line with a slight protrusion in the middle. In the backlight module 2, due to the special arrangement of the LEDs 23, the light guide plate 21 can have a higher brightness and a higher brightness on the light exit surface 212 without requiring special dot arrangement. Uniform brightness distribution and better design space. m 142370.doc 201122666 Referring to the drawings, a cross-sectional view of a second embodiment of a light guide plate of the present invention is shown. The light-emitting surface 212 of the light guide plate 21A is a microstructured surface having at least one microstructure, and the shape of the microstructure is a V-shaped groove (V-Cut). Projection 214. The top end of the projection 214 has a ridge shaft 216' and the ridge shaft 216 is oriented perpendicular to one of the long sides of the substrate 24 (Fig. 5). Taking Figure 5 as an example, the direction of the ridge axis 216 is perpendicular to the line C-D in Figure 5. In this embodiment, the dots 22 are distributed on the light exit surface 2 1 2, that is, on the microstructure surface. Referring to Figure 11, there is shown a cross-sectional view of a third embodiment of a light guide plate of the present invention. The light guide plate 21B of the present embodiment is substantially the same as the light guide plate 21A (FIG. 10) of the second embodiment, except that in the present embodiment, the dots 22 are distributed on the bottom surface 213. Referring to Fig. 12', there is shown a cross-sectional view of a fourth embodiment of the light guide plate of the present invention. The light-emitting surface 2 12 of the light guide plate 21C is a microstructured surface having at least one microstructure, and the microstructure is shaped as a lenticular lens 215. In this embodiment, the dots 22 are distributed on the light exiting surface 212, that is, on the microstructured surface. Referring to Fig. 13', there is shown a cross-sectional view of a fifth embodiment of the light guide plate of the present invention. The light guide plate 21D of the present embodiment is substantially the same as the light guide plate 21 C (FIG. 12) of the fourth embodiment, except that in the present embodiment, the dots 22 are distributed on the bottom surface 213. The above-described embodiments are merely illustrative of the principles of the present invention and the advantages thereof, and are not intended to limit the present invention. The scope of the claims of the present invention should be as set forth in the scope of the patent application 142, 370, doc 201122 666. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top plan view showing a conventional side-lit backlight module; FIG. 2 is a schematic diagram showing a distribution curve of a dot in a conventional side-lit backlight module; The distribution curve of the light-emitting diode in the light-type backlight module is not intended; FIG. 4 is a schematic diagram showing the brightness distribution curve of the light-emitting surface of the light-guide plate in the conventional side-light backlight module; ~ FIG. 5 shows the backlight module of the present invention. FIG. 6 is a schematic view showing a distribution curve of a dot in a preferred embodiment of the backlight module of the present invention; FIG. 7 is a schematic view showing a distribution curve of a light-emitting diode in a preferred embodiment of the backlight module of the present invention; FIG. 8 is a schematic cross-sectional view showing the relief surface of the light guide plate in the preferred embodiment of the edge-lit backlight module of the present invention; FIG. 9 is a cross-sectional view showing the first embodiment of the light guide plate according to the present invention; 10 is a schematic cross-sectional view showing a second embodiment of the light guide plate of the present invention; FIG. 11 is a cross-sectional view showing a third embodiment of the light guide plate of the present invention; FIG. 12 is a view showing a fourth embodiment of the light guide plate of the present invention. Sectional view BRIEF DESCRIPTION OF THE DRAWINGS Fig. 13 is a schematic cross-sectional view showing a fifth embodiment of a light guide plate of the present invention. [Main component symbol description] 1 Conventional backlight module 142370.doc •10- 201122666
2 11 12 13 14 21 21A 21B 21C 21D 22 23 24 111 112 211 212 213 214 215 216 E F G 本發明背光模組之較佳實施例 導光板 網點 發光二極體 基板 本發明中導光板之第一實施例導光板 本發明中導光板之第二實施例 本發明中導光板之第三實施例 本發明中導光板之第四實施例 本發明中導光板之第五實施例 網點 發光二極體 基板 入光面 出光面 入光面 出光面 底面 突出部 雙凸透鏡 脊軸 第一分佈區域 第二分佈區域 第三分佈區域 142370.doc -11 201122666 Η2 11 12 13 14 21 21A 21B 21C 21D 22 23 24 111 112 211 212 213 214 215 216 EFG Preferred embodiment of the backlight module of the present invention Light guide plate dot-emitting diode substrate First embodiment of the light guide plate of the present invention The second embodiment of the light guide plate of the present invention is the fourth embodiment of the light guide plate of the present invention. The fifth embodiment of the light guide plate of the present invention has a light-emitting diode substrate into the light. Surface illuminating surface illuminating surface illuminating surface bottom protrusion lenticular lens ridge axis first distribution area second distribution area third distribution area 142370.doc -11 201122666 Η
II
Pi p2 p3 p4 p5 p6 • P7 p8 第四分佈區域 第五分佈區域 第一間距 第二間距 第二間距 第三間距 第三間距 第四間距 第四間距 第五間距 -12- 142370.docPi p2 p3 p4 p5 p6 • P7 p8 fourth distribution area fifth distribution area first spacing second spacing second spacing third spacing third spacing fourth spacing fourth spacing fifth spacing -12- 142370.doc