201017282 . 六、發明說明： 【發明所屬之技術領域】 本發明涉及-種絲提㈣絲組之導光板發光更為均句化 的設計’ _是利用複數小面積導光板併接成大面積導光板時， 可以消除其併接處因介質不同而造成光線折射產生亮線的方法與 結構。 Φ 【先前技術】 使用液晶顯不面板(LCD)的產斜分普遍，舉凡筆記型電腦、 顯不器、手機、液晶電視、…等均可見其應用。LCD的應用必然要 使用背光模組才能使其發光而產生顯示效果，因此，背光模組實 際上亦屬於LCD產品的必然配備，即便不是LCD產品，但在需要 發光效果的應用領域時，使用背光模組也成了適當的選擇。 -般用於LCD的背光模組包含有導光板與光源，料液晶電 ❿視是採用直下型的燈管安裝於導光板背面做為光源，但如此會使 液晶電視的機體厚度較大；為了進—步縮小機體厚度，目前的做 法係逐漸利用MD做為背光模組的光源，其主要結構，是在導光 板的侧邊則設置複數LED，導光板的第一侧面則設置一反射片，相 對的第二侧面做為出光面則設置由擴散片與棱鏡片等所組成的複 數光學膜片’再於該些元件的周邊以一外框包圍。光源所發出的 光線由導光板的側邊投射進入，部分光線由反射片反射，再依序 通過擴散片與稜鏡片射出。 • 201017282 前述導光板屬於光學元件，其對於光學精度與性能的要求很 尚，因此，導光板的尺寸愈大，製造愈不容易，成本愈高。基於 此，可考慮的方向是將複數片較小面積的導光板併接組合成一大 面積的導光板’俾能應用於大尺寸的LCD顯示器。 如第一圖所示，所述併接式的導光板結構，是將複數片平滑 的小面積導光板1的併接邊人拋光，併接時，直接讓相鄰兩導光 板的併接邊A密合接觸；所述各導光板1的側邊設置LE£)光源2， ©光源2將光線投射進入導光板時，鎌在導光板中被傳導而在出 光面形成整面發光的效果。惟，由於兩導光板丨的併接邊A與導 光板1本身的介質不相同，以致於光線傳導到該併接邊人時會產 生折射’進喊生亮度高於平均制亮輕域B(如第二圖的亮度 曲線所示），導致整塊大面積導光板的亮度不均勻。 【發明内容】 &本發_其卜目的，在於解決採用併接方式製造大面積背 光模組之導光板時，會在導光板的併接處產生亮度高於平均值之 亮線的問題。 本發明的另一目的，在於使導光板之發光均勻化效果進一步 提昇。 、本考X月的特徵’疋在背光模組所包含之導光板設置複數呈間 歇式排列的光學微結構單元，每一光學微結構單元又包含次光學 微、、σ構單7L，藉由献學微結構單元與:欠光學微結構單元在導光 .201017282 板上構成在導光板三維方向分佈密度的改變，密度大的區域得以 折射與反射更多光量，密度小的區域則折射與反射較少光量，藉 以使導光板的發光更為平均；前述結構應用於併接式的導光板 時，得以藉由光學微結構單元折射與反射光線對視覺的干擾作 用，進而在視覺上消除在併接處產生增亮視覺效果的問題。 本發明的技術手段，係在一導光板相對於其出光面的另一面 設置複數光學微結構單元，以及在該導光板的入光面設置至少— ®光源’所述光學微結構單元係由複數次光學微結構單元組構而 成，該光學微結構單元在所述導光板的分佈密度，係在χ軸與γ 軸方向隨著距離該光源愈長而愈密地變化，該次光學微結構單元 貝J疋由複數個在ζ軸方向尚出導光板表面的突出部，或低於導光 板表面的凹孔組成，且該突出部或凹孔係分別在2軸方向隨著距 離該光源愈長而愈高或愈低地變化，藉由該光學微結構單元與次 光學微結構單元的組成形成三維方向的變化；所述次光學微結構 鲁單元在每一光學微結構單元上的分佈形態，係相同於該光學微結 構單元在該導光板上的分佈形態。 做為一種選擇，本發明對於所述光學微結構單元的輪廓形 狀’可以是正方形、長方形、稜形、圓形、橢圓形、三角形、波 浪形、…等各種形狀。 【實施方式】 以下配合圖式及元件符號對本發明的實施方式做更詳細的說 5 ‘201017282 明’撕吏熟習該項技術領域者在研讀本說明書後能據以實施。 參閱第三酿第四® ’本發明提供之縣模組發柄句化的 方法與結構，主要是針對構射光模_導光板丨从的方法與 結構；所述導光板1具有位於至少一側邊的入光面u，取導光板 1具有較大面積的-側面做為出絲12，該出絲12可以依實際 的需要設置諸如增亮片與稜鏡片等光學膜片，相對於出光面U的 另一侧面則形成複數光學微結構單元13(圖中斜線所示之區域）;、 在導光板1的人光面Η設置至少—絲2 ;所述光學微結構單元 13再進-步由複數絲學微結構單元15 _而成，該絲微結構 單元13在導光板丨的分佈密度，係在χ轴與γ軸方崎著距離該 光源愈長讀密地變化，該次光學微結構單元15則是由複數個在 ζ軸方向高出導光板！表面的突出部151(參第四α⑷，或低於導 光板1表面的凹孔152(參第四Β圖）組成，且該突出部ΐ5ι或凹孔 152係分別在ζ軸方向隨著距離該光源愈長而愈高或愈低地變 化，藉由縣學微結構單元13與錢學微結鮮元15的組成形 成X軸、Υ軸與Ζ軸三維方向的變化’密度大的區域得以折射與反 射更多光量’密度小的區域騎射與反雜少光量，藉以使導光 板的發光更為平均。 所述光學微結構單元13的輪廓形狀，可以如第三圖所示的正 方形規則排列，也可以如第七圖所示的稜形、第人圖所示的正方 形不規則制、第九_示__、第十騎示的三角形，或 第十-圖所示的長方形，甚至可以是_、梯形、波浪形、…等 6 .201017282 各式各樣的輪廓形狀。該等 形態，並在彼此之·早元13做此部分連接的 舰之_留姑料紐原柄平祕構14，同様 ^溝=隨著麟柄2_置餘崎財低。所述次光學 口/早幻5 ’在絲微結構單元13上的分佈賴，辨光學微 料缺1切分佈職相^如，細圖所示的 ❹ =:微構早元15的分佈形態’係相同於第三圖所示的光學微 結構早凡13在縣板1上的分佈。 第五圖與第，、圖係顯示细前述本發明的導光板1併接後， 敕導=板1的併接邊纟雖然會產生亮度增高的絲區域Β，但因為 正個導光板的其他區域相為受到所述光學微結構單元13盘次光 學微結構單元15的影響而產生相同且平均分佈的亮線區域B，因 併接邊A的冗線區域β即被混合為併接後的整體亮線的一部 分，卿藉由絲微树單元的騎與聽光_視覺的干擾作 用m此在視覺上消除在併接處產生增亮視覺效果的問題。 、以上所述者僅為用以轉本發明之較佳實施爿，並非企圖據 以對本發賴任何形式上之關，如，凡有在_之精神下所 作有關之任何修飾或變更，皆仍應包括在本發曰月意圖保護之範嘴。 7 201017282 f圖式簡單說明j 第-圖為顯示習知f光模組之導敍併接職之示意圖。201017282 . VI. Description of the invention: [Technical field of the invention] The present invention relates to a design of a light-emitting plate of a silk-striped (four) wire group which is more uniform in the sentence _ is to use a plurality of small-area light guide plates and connect them into a large-area guide In the case of a light plate, it is possible to eliminate the method and structure in which the light is refracted to produce a bright line due to the difference in the medium. Φ [Prior Art] The use of liquid crystal display panel (LCD) is widely used, such as notebook computers, display devices, mobile phones, LCD TVs, etc. The application of LCD must use the backlight module to make it emit light and produce a display effect. Therefore, the backlight module actually belongs to the LCD product. Even if it is not an LCD product, it is used in the application field where the light-emitting effect is required. Modules have also become the appropriate choice. The backlight module generally used for LCD includes a light guide plate and a light source, and the liquid crystal electric squint is mounted on the back of the light guide plate as a light source by using a straight type lamp, but the thickness of the liquid crystal television body is large; In order to reduce the thickness of the body, the current practice is to use MD as the light source of the backlight module. The main structure is to set a plurality of LEDs on the side of the light guide plate, and a reflective sheet on the first side of the light guide plate. The opposite second side is used as a light-emitting surface, and a plurality of optical films consisting of a diffusion sheet and a prism sheet are disposed, and are surrounded by an outer frame at the periphery of the elements. The light from the light source is projected from the side of the light guide plate, and some of the light is reflected by the reflection sheet, and then sequentially passed through the diffusion sheet and the cymbal sheet. • 201017282 The aforementioned light guide plate is an optical component, and its optical precision and performance are very demanding. Therefore, the larger the size of the light guide plate, the easier it is to manufacture and the higher the cost. Based on this, the direction that can be considered is to combine a plurality of smaller-area light guide plates into a large-area light guide plate, which can be applied to a large-sized LCD display. As shown in the first figure, the parallel-type light guide plate structure is to polish a plurality of smooth small-area light guide plates 1 and connect them to each other, and directly connect the adjacent sides of the adjacent two light guide plates. A close contact; the side of each of the light guide plates 1 is provided with a light source 2, and when the light source 2 projects light into the light guide plate, the 镰 is conducted in the light guide plate to form a full-surface light-emitting effect on the light-emitting surface. However, since the parallel side A of the two light guide plates is different from the medium of the light guide plate 1 itself, the light is transmitted to the side of the joint, and the refraction is generated, and the brightness is higher than the average light-emitting area B ( As shown by the brightness curve of the second figure, the brightness of the entire large-area light guide plate is uneven. SUMMARY OF THE INVENTION The present invention is directed to solving the problem that when a light guide plate of a large-area backlight module is manufactured by a parallel connection, a bright line having a brightness higher than an average value is generated at the junction of the light guide plates. Another object of the present invention is to further enhance the effect of uniformizing the light emission of the light guide plate. The characteristics of the X-month of this test are: 导The light-guide plate included in the backlight module is provided with a plurality of optical micro-structure units arranged in a batch arrangement, and each optical microstructure unit further comprises a sub-optical micro, σ-structured single 7L, The micro-structural unit and the under-optical micro-structural unit are configured to change the distribution density in the three-dimensional direction of the light guide plate on the light guide. 201017282. The dense area is refracted and reflected more light, and the low density area is refracted and reflected. The amount of light is less, so that the light of the light guide plate is more evenly distributed; when the foregoing structure is applied to the parallel light guide plate, the optical micro-structural unit refracts and reflects the light to interfere with the visual effect, thereby visually eliminating the The junction creates a problem that brightens the visual effect. The technical means of the present invention is to provide a plurality of optical microstructure units on the other side of a light guide plate with respect to the light exit surface thereof, and to provide at least a light source on the light incident surface of the light guide plate. The sub-optical microstructure unit is configured to have a distribution density of the optical micro-structure unit in the direction of the x-axis and the γ-axis, and the density is changed more and more with the distance from the light source. The sub-optical microstructure The unit J is composed of a plurality of protrusions that are still on the surface of the light guide plate in the direction of the x-axis, or a recessed hole that is lower than the surface of the light guide plate, and the protrusion or the recessed hole is respectively in the 2-axis direction with the distance from the light source. Longer and higher or lower, the three-dimensional change is formed by the composition of the optical microstructure unit and the sub-optical microstructure unit; the distribution pattern of the sub-optical microstructure Lu unit on each optical microstructure unit, It is the same as the distribution pattern of the optical microstructure unit on the light guide plate. Alternatively, the outline shape of the optical microstructure unit of the present invention may be various shapes such as a square, a rectangle, a prism, a circle, an ellipse, a triangle, a wave, and the like. [Embodiment] Hereinafter, the embodiments of the present invention will be described in more detail with reference to the drawings and the reference numerals. 5 ‘201017282 明 吏 吏 吏 该项 该项 该项 该项 该项 该项 该项 该项 该项 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Referring to the third brewing fourth® 'the method and structure of the county module handle provided by the present invention, mainly for the method and structure of the structured light mode _ light guide plate; the light guide plate 1 has at least one side The light-incident surface u of the side, the light-guide plate 1 has a larger area - the side is used as the wire 12, and the wire 12 can be provided with an optical film such as a brightness-increasing film and a cymbal piece according to actual needs, with respect to the light-emitting surface U The other side forms a plurality of optical microstructure units 13 (the areas indicated by oblique lines in the figure); at least the wire 2 is disposed on the human light surface of the light guide plate 1; the optical microstructure unit 13 is further advanced by a plurality of filamentary microstructure units 15 _, the distribution density of the filament microstructure unit 13 in the light guide plate , is the distance between the χ axis and the γ axis, and the light source changes longer and densely, the sub-optical microstructure Unit 15 is made up of a plurality of light guides in the direction of the x-axis! a protrusion 151 of the surface (refer to the fourth α (4), or a recess 152 (refer to the fourth figure) lower than the surface of the light guide plate 1 , and the protrusion ΐ 5 ι or the recess 152 is respectively in the z-axis direction with the distance The longer the light source is, the higher or the lower the change is. The change of the three-dimensional direction of the X-axis, the Υ-axis and the Ζ-axis is formed by the composition of the county micro-structure unit 13 and the Qianxue micro-element fresh element 15 Reflecting more light quantity 'area of small density, riding and anti-heterogeneous light quantity, so that the light emission of the light guide plate is more even. The outline shape of the optical microstructure unit 13 can be arranged as a square rule as shown in the third figure, The prism shape shown in the seventh figure, the square irregularity shown in the first figure, the ninth_showing__, the eleventh riding triangle, or the tenth-picture rectangle may even be _ , trapezoidal, wavy, ..., etc. 6.201017282 A variety of contour shapes. These forms, and the ship that is connected to this part in each of the early 13th _ _ _ _ _ _ _ _ _ _ _ _ _ _ Tongyu ^gou = with Lin handle 2_ set Yuqi Cai low. The secondary optical mouth / early magic 5 ' The distribution on the silk microstructure unit 13 is different from that of the optical micro-materials. The ❹ =: the distribution pattern of the micro-structure early 15 is the same as the optical image shown in the third figure. The distribution of the microstructures on the county board 1 is shown in Fig. 5. The fifth diagram and the figure show that the light guide plate 1 of the present invention is connected in parallel, and the junction of the board 1 is increased in brightness. The silk region Β, but because the other regions of the same light guide plate are affected by the optical microstructure unit 13 of the optical microstructure unit 13 to produce the same and evenly distributed bright line region B, because the edge A The redundant line area β is mixed as part of the integrated bright line after the parallel, and the visual interference is eliminated by the riding and listening light_visual interference of the silk micro-tree unit. The problem is only the preferred embodiment of the present invention, and is not intended to be in any form to the present invention, such as any modification or Changes should still be included in the mouth of the intention to protect this month. 7 201017 282 f Simple description of the figure j The first figure is a schematic diagram showing the introduction and acceptance of the conventional f-light module.
=圖為顯抑知將二導光鑛接後，在導光板上H 思圖。 小 第三圖為顯示本發明導光板第—實施例結構之俯視示意圖。 第四圖為顯示沿第三圖之S-S割線的局部平面剖視。= The picture shows that after the two light guides are connected, the light is on the light guide plate. Small FIG. 3 is a top plan view showing the structure of the first embodiment of the light guide plate of the present invention. The fourth figure shows a partial plan cross section along the S-S secant of the third figure.
第四A圖騎四圖之4A區_局做域，其絲次絲微 為突出部之示意圖。 籌 第四B _顯林㈣之次光學微結構為凹狀示意圖。 第五圖為顯示以第三圖之二導光板併接組合之實施例示意圖。 第六圖為顯示本發明將二導光板併接後，在導光板上之亮線分佈 =七圖為顯示本發明導光板第二實施例結構之俯視示意圖。 第八圖為顯示本發明導光板第三實施舰構之俯視示意圖。 第九圖為顯示本發崎光板第四實_結構之俯視示意圖。 第十圖為顯示本發日光板第五實關結構之俯視示意圖。 第十圖為顯不本發明導光板第六實施例結構之俯視示意圖。 【主要元件符號說明】 1……導光板 11 ......入光面 12 ......出光面 8 201017282 13…. ‘ ··光學微結構單元 14···· ••平面結構 15···· ••次光學微結構單元 151" …·突出部 152·· •…凹孔 光源 A……併接邊 〇 B……亮線區域The fourth A picture rides the 4A area of the four maps, and the wire is a schematic view of the protruding part. The optical microstructure of the fourth B_Xinlin (4) is a concave schematic. The fifth figure is a schematic view showing an embodiment in which the light guide plates of the third figure are connected in parallel. The sixth figure shows the distribution of bright lines on the light guide plate after the two light guide plates are connected in parallel according to the present invention. FIG. 7 is a top plan view showing the structure of the second embodiment of the light guide plate of the present invention. Figure 8 is a top plan view showing the third implementation of the light guide plate of the present invention. The ninth figure is a top plan view showing the fourth real structure of the present. The tenth figure is a schematic top view showing the fifth practical structure of the sunlight board of the present invention. Figure 11 is a top plan view showing the structure of a sixth embodiment of the light guide plate of the present invention. [Description of main component symbols] 1... Light guide plate 11 ... Light-incident surface 12 ... Light-emitting surface 8 201017282 13.... '··Optical microstructure unit 14···· •• Plane Structure 15····••Sub-optical microstructure unit 151" .... protrusion 152·· •...recessed light source A...and edge 〇B...light line area