1271548 玖、發明說明： 【發明所屬之技術領域】 本發明係關於一種導光板，尤指一種適用於導光板之 網點的排列結構，以提高導光板特定區域之亮度。 【先前技術】 目前液晶面板顯示器已成為市場的主流產品，而液晶 面板顯示器有-個重要的品質要求，就是整個液晶面板的 10 15 亮度要均勻。液晶面板亮度的均勻與否，主要取決於導光 板所提供光線亮度的均勾性。然而，在導光板靠近燈管電 極端的部分，會有所謂的「角落暗帶」產生，嚴重影響整 個導光板的亮度均勻性。 目前消除此種角落暗帶的習知方法共有兩種。請袁閱 圖=，第一種方法是在導光板u之導光板上表面⑴上 112，而這些網點112的尺寸大小會隨著其 導：反η上的位置而有所變化，如愈靠近角落暗帶 1 ’其網點112的尺寸士丨外么丄 . 121的導光板U之；5: 愈接近角落暗帶 ^ ^ ,, 反射率會愈大，以便補償燈管131 -側 電極端132光源不足的 1 一側 力有限，並益法確實接丄疋此種方法其補償的能 二 …、沄確貫棱尚導光板11之反射率。 請再參閱圖1Β，, 除了在導光板15… 消除角落暗帶的方式是 ^ v光板上表面上形成許多尺寸大』 不一的網點152以外，承+, t 夕尺寸大小 更在¥光板15上靠近角落暗帶161 20 1271548 的導光板側面182、與燈管m的電極端172之間置入一 反射膜片18卜並且在導純15上靠近Μ暗帶；61的導 =板側面182上進行表面處理，例如表面霧化、表面鑛膜、 2刻痕等。此種方法能使由㈣暗帶161出射的光線能 /反射膜片181或經表面處理過之部分導光板側面182 反=或散射，以重新進人導光板15内部，增加導光板15 ίο 的亮度。但是，這種習知的方法其製造程 彡1進行額外之導光板表面處理程序及額外 使得這㈣知方法的生產成本大增，生產 【發明内容】 本發明之主要目的係在提供一種導光板，俾能 光板特定區域內之/5益+、玄， 提问 15 L '内之反射率，以增加導光板亮度的均勾性。 本务明之另一目的係在提一 單的社馗LV钽古噹 1種導先板，俾能以較簡 % :肖V光板之反射率及增加亮度的均勾性。 表面及曼成上述目@ ’本發明之導光板係包括-具有-上 上表面並包括有至少二:之BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light guide plate, and more particularly to an arrangement structure suitable for a dot of a light guide plate to improve the brightness of a specific region of the light guide plate. [Prior Art] At present, liquid crystal panel displays have become the mainstream products in the market, and liquid crystal panel displays have an important quality requirement, that is, the brightness of the entire liquid crystal panel is uniform. Whether the brightness of the liquid crystal panel is uniform or not depends mainly on the uniformity of the brightness of the light provided by the light guide plate. However, in the portion where the light guide plate is close to the electric pole of the lamp tube, a so-called "corner dark band" is generated, which seriously affects the brightness uniformity of the entire light guide plate. There are currently two conventional methods for eliminating such corner bands. Please read the figure =, the first method is on the surface (1) 112 of the light guide plate u, and the size of these dots 112 will vary with the position of the guide: reverse η, such as closer Corner dark band 1 'The size of its dot 112 is outside the 丨 丄 丄. 121 light guide U; 5: the closer to the corner dark band ^ ^,, the greater the reflectivity, in order to compensate the lamp 131 - side electrode end 132 The lack of one side of the light source is limited, and the benefit method is in fact that the compensation energy of the method is the same as that of the light guide plate 11. Please refer to FIG. 1A, except that in the light guide plate 15... the way to eliminate the corner dark band is to form a plurality of large-sized dots 152 on the surface of the optical plate, and the size of the +, t eve is more on the light plate 15 A reflective film 18 is placed between the side 182 of the light guide plate near the corner dark band 161 20 1271548 and the electrode end 172 of the lamp tube m, and is adjacent to the dark band on the guide 15; the guide plate side 182 of 61 Surface treatment is performed, such as surface atomization, surface mineral film, 2 scoring, and the like. In this way, the light energy/reflective film 181 emitted by the (4) dark strip 161 or the surface-treated side surface 182 of the surface-treated portion can be reversed or scattered to re-enter the inside of the light guide plate 15 to increase the light guide plate 15 ίο. brightness. However, the conventional method of the present invention provides an additional light guide surface treatment process and additionally increases the production cost of the method. The main object of the present invention is to provide a light guide plate.俾 + + 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定 特定The other purpose of this business is to provide a guideline for the LV 钽 古 古 古 古 古 古 古 古 古 古 古 古 古 馗 。 : 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The surface and the above-mentioned light guide plate of the present invention include - having an upper surface and including at least two:
-有稷數個弟一網點之外，另外於前述 Z 内設置有複數個分佈於特4域 由於太恭、 間隙之間的第二網點。 外之烟"之導光板較習知之導光板設置有許多「額 外」之網點，即葙II另斤夕額 個弟二網點，所以本發明之導光板在 20 1271548 二定例如角落暗帶）内的反射率會較習知的導光板 二口》夕。此外’本發明之網點（第一網點、及第二網點） 5 形可！據不同之幾何曲線而變化設計，且網點的 二兩'3L並沒有限制’故本發明之導光板可以依據實際 符而要’將導光板特定區域（例如前述之角落暗帶内 反射率加以調整’使得整個導光板的亮度更加均勾。 ^外’本發明導光板上的網點（第一網點、及第二網 i此开印刷、電禱姓刻或化學關的方式形成，而 10 15 於習知之方法簡易許多，故本發明之導 内之反射率、並增加導光板亮度的均勻 = 可以節省許多生產成本，以及可縮短生產所需時間並叫 :::之複數個第一網點及複數個第二網 曲線、指數型變化曲線、、角：:二：如線性型變化 —角函數型變化曲線、及三者中 乂兩者混合而成之混合變化曲線等。 :4及複數個第二網點的類型並無限制，但:::= ==制本:::複數個第一網點及複數”二二 ;限制’但以圓形、擴圓形及多邊形為較佳 =個第一網點及複數個第二網點的 只 兩者外型相同的情況為較佳。本發明之複數個=\，但以 二網點的形成方式無限制，但以網::及 無限制，但以冷陰極管為較佳。 毛月配合之燈管 20 1271548 【實施方式】 為能讓貴審查委員能更瞭解本發明之技術内容，特 舉六較佳具體實施例說明如下。 請參閱圖2，本發明之第一較佳具體實施例係包括一個 5 具有一導光板上表面22及兩側向入射面241，242之導光板 21、及兩支分別對應於兩側向入射面241，242之燈管 271，272 ’於本貫施例中係為冷陰極管，且兩燈管271,272 之二側分別具有一電極端281，282,283,284，其並在導光板 21之導光板上表面22四個角落分別形成一角落暗帶 10 251，252,253,254。 15 點26，其係以等間距的方式分佈於角落暗帶25丨，252, 2^， 254内之第—網點23的間隙之間，且其尺寸大小係依照另1 線性型變化曲線而由中央向四個角落逐漸增加變化。 此外’在導光板21之導光板上表面22設有複數個圓形 凹點狀之第一網點23，其係以等間距的方式分佈於導光板 上表面22上，且其尺寸大小係依照一線性型變化曲線而由 V光板上表面22之中央朝向四個角落逐漸增加變化。另 外，導光板上表面22除了複數個第一網點23以外，在角落 暗*ϊΤ 251，252,253,254内另設有複數個圓形凹點狀之第二網 小具他較佳具體實施例（第二S =^圭具財施例）之圖示，由於每一較佳具體實施合 明之第：較陰極官)之相關位置及功能均與本 ^ 八體實施例相同，因此，圖3至圖7僅顯示出 紅燈管電極端之角落暗帶附近之部份。、 20 !271548 請參閱圖3,本發明之楚 <第二較佳具體實施例之複數個第 =網點31係以等間距的方式分佈於導光板上表面33,且其 ^凹』之尺寸大小係依照_線性型變化曲線由導光板上 ，，人、 角洛逐漸增加變化。導光板上表面 3 3除了複數個第一網點3丨 ^ ^ ^ ^ 丨以外，在靠近燈管34之電極端35 的一角落暗帶36内，另外机古、— 卜口又有禝數個圓形凹點狀之第二網 點3 2 ’且其係以等間距的 的方式分佈於角落暗帶36内之第一 網點31的間隙之間，同時各 J吟母一個第二網點32之尺寸大小皆 相同。 10 15 請參閱圖4，本發明之第二鉍 少 弟一較佳具體實施例之複數個第 一網點41係以等間距的方，八 式刀佈於導光板上表面43，且苴 橢圓形凹點之尺寸大」、筏分R77 ^ " 糸依π 一線性型變化曲線由導光板 上表面43之中央朝向四個角落逐漸增加變化。導光板上表 面谢了 :复數：第一網_以外，在靠近燈管μ之電極端 45的角洛暗^>46内’另外設有複數個圓形凹點狀之第二 網點42 ’且其係以等間距的方八 的方式刀佈於角落暗帶46内之第 一網點41的間隙之間，同時各- There are a number of younger ones, and a plurality of second points in the Z are arranged in the special 4 field because of the sympathy and the gap. The light guide plate of the outside smoke has a number of "extra" outlets than the conventional light guide plate, that is, the 葙II is another two-point outlet, so the light guide plate of the present invention is set at 20 1271548, for example, a corner dark band) The reflectivity inside will be better than that of the conventional light guide plate. In addition, the dot (the first dot and the second dot) of the present invention is 5 shaped! According to different geometric curves, the design is different, and the two or two '3L of the dot is not limited. Therefore, the light guide plate of the present invention can adjust the specific area of the light guide plate according to the actual symbol (for example, the reflectance in the aforementioned corner dark band is adjusted). 'Making the brightness of the entire light guide plate more uniform. ^External's the dots on the light guide plate of the present invention (the first mesh point, and the second mesh i are formed by printing, electro-praying or chemically closing, and 10 15 The conventional method is much simpler, so the reflectivity in the guide of the present invention and the uniformity of the brightness of the light guide plate can save a lot of production costs, and can shorten the time required for production and call: a plurality of first dots and plurals of::: Second net curve, exponential change curve, angle:: 2: such as linear type change - angular function type change curve, and mixed curve of the mixture of the three, etc. : 4 and plural There are no restrictions on the type of the two outlets, but:::= == system::: plural first nets and plurals "two; limit" but round, expanded and polygonal is preferred = first Network points and a plurality of second network points The case where the two shapes are the same is preferable. The plurality of the present invention is =\, but the formation manner of the two dots is not limited, but the mesh:: and no limitation, but the cold cathode tube is preferred. The lamp tube 20 1271548 [Embodiment] In order to enable the reviewing committee to better understand the technical content of the present invention, a preferred embodiment of the present invention is described below. Referring to FIG. 2, a first preferred embodiment of the present invention The utility model comprises a light guide plate 21 having a light guide plate surface 22 and two side incident surfaces 241, 242, and two light tubes 271, 272 ′ corresponding to the two side incident surfaces 241, 242 respectively. In the example, it is a cold cathode tube, and two sides of the two tubes 271, 272 respectively have an electrode end 281, 282, 283, 284, and a corner strip 10 251, 252, 253, 254 is formed at four corners of the surface 22 of the light guide plate of the light guide plate 21, respectively. At 15:26, they are distributed at equal intervals between the gaps of the first and second dots 23 in the corner dark bands 25丨, 252, 2^, 254, and their sizes are in accordance with the other linear type curve. The change from the center to the four corners gradually increases. 'The light guide plate surface 22 of the light guide plate 21 is provided with a plurality of first dot dots 23 of circular pit shape, which are distributed on the surface 22 of the light guide plate at equal intervals, and the size thereof is linear. The type change curve is gradually changed from the center of the surface 22 of the V-light plate toward the four corners. In addition, the surface 22 of the light guide plate is provided with a plurality of corners in the corners * 251, 252, 253, 254 in addition to the plurality of first dots 23 The second trellis of the circular pit shape is a graphical representation of the preferred embodiment (second S = ^ 圭 gi gi), for each preferred embodiment of the invention: The position and function are the same as those of the embodiment of the present invention. Therefore, Figures 3 to 7 only show the portion near the corner dark band of the electrode end of the red tube. 20!271548 Referring to FIG. 3, the second plurality of dot dots 31 of the second preferred embodiment of the present invention are distributed on the surface 33 of the light guide plate in an equally spaced manner, and the size of the concave plate is The size is gradually changed by the _ linear type curve from the light guide plate, and the person and the angle are gradually increased. The surface 3 3 of the light guide plate has a plurality of first mesh points 3 丨 ^ ^ ^ ^ ,, in a corner dark band 36 near the electrode end 35 of the lamp tube 34, and another machine ancient, - a second dot 3 2 ' having a circular pit shape and distributed between the gaps of the first dot 31 in the corner dark band 36 in an equally spaced manner, and the size of each second dot 32 of each J 吟The size is the same. 10, Referring to FIG. 4, a plurality of first mesh points 41 of the second embodiment of the present invention are arranged at equal intervals, and the eight-knife blade is disposed on the surface 43 of the light guide plate, and has an elliptical shape. The size of the pit is large, and the R77 ^ " 糸 π linear change curve gradually increases from the center of the surface 43 of the light guide plate toward the four corners. The surface of the light guide plate is thanked: plural: except for the first net _, in the corner near the electrode end 45 of the lamp μ, the second dot 42' is provided with a plurality of circular pits. And it is disposed between the gaps of the first mesh points 41 in the corner dark strips 46 in the manner of equally spaced squares, and each
| J吋母個弟二網點42之尺寸大小 皆相同。 J ^ J 請參閱圖5,本發明之第四較佳具體實施例之複數個第 一網點51係以等間距的方式分佈於導光板上表面53,且苴 六^形凹點之尺寸大小係依照一線性型變化曲線由導光板 上表面53之中央朝向四個角落逐漸增加變化。導光板上表 面53除了複數個第一網點”以外 55的-角落暗帶56内，另外^ 力卜。又有後數個六角形凹點狀之第 20 1271548 二52’且其係以等間距的方式分佈於角落暗帶％内之 ::门的間隙之間’同時每-個第二網點52之尺寸大 小皆相同。 5 -姻I=Γ圖6 ’本發明之第五較佳具體實施例之複數個第 :开係以等間距的方式分佈於導光板上表面63,且其 ==寸大小係依照—線性型變化曲線由導光板上 表面63之中央朝向四個角落逐漸增加變化。導光板上表面 63除了複數個第一網點6丨以 i - fe -¾ «i, 卜在罪近燈管64之電極端65 10 占-角=一6内’另外設有複數個菱形凹點狀 點62’且其係以等間距的方式分佈於角落暗帶66内之第一 網點61的間隙之間，同時每一 相同。 弟一、，·同點62之尺寸大小皆 -二=本Γ之第六較佳具體實施例之複數個第 、，构點71係以係以等間距的古 15 且其三角形凹點之尺寸大=二導光板上表面73, 光板上#而A 係依^ 一線性型變化曲線由導 表面73之中央朝向四個角落逐漸 上表面73除了複數個第一網點 W板 極端75的-角落暗帶76内，另外設有卜複=… 之第二網點72,且其係以等間距的 —角，凹點狀 内之第-網點71的間隙之間，同時每1:第：f落暗帶76 寸大小皆相同。 一，.罔點72之尺 從以上的實施例中可以得知，本發 光板特定區域内之反射率及增加導光板亮声的=提高導 且其結構較習知消除角落暗帶的方式簡單^多的均勻性，而 20 1271548 上述實施例僅係為了方便說明而舉例而已，本發 主張之權利範圍自應以申請專利範圍所述為準，而^僅 於上述實施例。 义 5【圖式簡單說明】 圖1A係習知消除角落暗帶之導光板示意圖之一 圖1B係習知消除角落暗帶之導光板示意圖之二 圖2係本發明第一較佳實施例之導光板示意圖。 圖3係本發明第二較佳實施例之導光板示意圖。 10圖4係本發明第三較佳實施例之導光板示意圖。 圖5係本發明第四較佳實施例之導光板示意圖。 圖6係本發明第五較佳實施例之導光板示意圖。 圖7係本發明第六較佳實施例之導光板示意圖。 15 【圖號說明】 11導光板 121角落暗帶 15導光板 161角落暗帶 181反射膜片 22 導光板上表 242側向入射面 253角落暗帶 271燈管 111導光板上表 131燈管 151導光板上表 171燈管 182導光板側面 23 苐一網點 251角落暗帶 254角落暗帶 272燈管 面112網點 132電極端 152網點 172電極端 21導光板 241側向入射面 252角落暗帶 26 第二網點 2 81電極端 電極端 283 電極端 284 電極端 第一網點 32 第二網點 33 導光板上表面 燈管 35 電極端 36 角落暗帶 第一網點 42 第二網點 43 導光板上表面 燈管 45 電極端 46 角落暗帶 第一網點 52 第二網點 53 導光板上表面 燈管 55 電極端 56 角落暗帶 第一網點 62 第二網點 63 導光板上表面 燈管 65 電極端 66 角落暗帶 第一網點 72 第二網點 73 導光板上表面 燈管 75 電極端 76 角落暗帶 12| J吋 mother brother two outlets 42 are the same size. Referring to FIG. 5, a plurality of first dots 51 of the fourth preferred embodiment of the present invention are distributed on the surface 53 of the light guide plate in an equally spaced manner, and the size of the concave dots is According to a linear type curve, the change from the center of the surface 53 of the light guide plate toward the four corners gradually increases. The surface 53 of the light guide plate is in the corner-corner 56 of the 55 other than the plurality of first halftone dots, and has a plurality of hexagonal recessed shapes of the 20th 1271548 two 52' and is equidistantly spaced. The manner is distributed in the corner dark band%:: between the gaps of the door 'the size of each second mesh point 52 is the same. 5 - marriage I = Γ Figure 6 'The fifth preferred embodiment of the present invention For example, the plurality of openings are distributed on the surface 63 of the light guide plate in an equally spaced manner, and the size of the == inch is gradually increased from the center of the surface 63 of the light guide plate toward the four corners according to the linear type curve. The surface 63 of the light guide plate is provided with a plurality of first mesh dots 6 丨 with i - fe -3⁄4 «i, and at the electrode end 65 10 of the sin lamp tube 64 occupies - an angle = a 6', and a plurality of diamond pits are additionally provided. The dots 62' are distributed in an equidistant manner between the gaps of the first dots 61 in the corner dark strips 66, and each is the same. The size of the first, the same point 62 is - two = this In the sixth preferred embodiment of the sixth preferred embodiment, the plurality of nodes 71 are equated with an equal spacing of the ancient 15 and its triangle The size of the dot is large = the surface 73 of the light guide plate, the light plate # and the A system is a linear type curve from the center of the guide surface 73 toward the four corners gradually upper surface 73 except for a plurality of first mesh points W plate extreme 75 - In the corner dark band 76, there is additionally a second mesh point 72 of the second complex, which is equidistantly spaced, between the gaps of the first mesh point 71 in the concave shape, and every 1:: f. The dark band 76 is the same size. One, the point 72 is from the above embodiment, the reflectivity in a specific area of the illuminating plate and the increase of the light guide plate brightening and improving the structure It is more conventional to eliminate the corner strips in a simpler manner, and the above-mentioned embodiments are only for the convenience of description. The scope of the claims is based on the scope of the patent application, and ^ FIG. 1A is a schematic view of a light guide plate for eliminating a corner dark band. FIG. 1B is a schematic view of a light guide plate for eliminating a corner dark band. FIG. 2 is a second embodiment of the present invention. Schematic diagram of a light guide plate according to a preferred embodiment. 4 is a schematic view of a light guide plate according to a third preferred embodiment of the present invention. FIG. 5 is a schematic view of a light guide plate according to a fourth preferred embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 7 is a schematic view of a light guide plate according to a sixth preferred embodiment of the present invention. 15 [Description of the figure] 11 light guide plate 121 corner dark band 15 light guide plate 161 corner dark band 181 reflection film 22 light guide plate 242 lateral incident surface 253 corner dark strip 271 light tube 111 light guide plate 131 light tube 151 light guide plate 171 light tube 182 light guide plate side 23 苐 one dot 251 corner dark belt 254 corner dark belt 272 Lamp face 112 dot 132 electrode end 152 dot 172 electrode end 21 light guide plate 241 lateral incident surface 252 corner dark band 26 second mesh point 2 81 electrode end electrode end 283 electrode end 284 electrode end first dot 32 second dot 33 lead Light board surface lamp 35 electrode end 36 corner dark band first dot 42 second dot 43 light guide plate surface lamp 45 electrode end 46 corner dark band first dot 52 second dot 53 light guide plate surface lamp 55 electrode End 56 Corner dark band First mesh point 62 Second mesh point 63 Light guide plate surface Lamp 65 Electrode end 66 Corner dark band First dot 72 Second dot 73 Light guide plate surface Lamp 75 Electrode end 76 Corner dark band 12