' 1287110 4 九、發明說明·· 【發明所屬之技術領域】 • 本發明係有關於一種光學調制元件，尤指一種具有複 合式微型結構，兼具集光與擴散功能，不僅可提高先源使 用效率以及法線方向之光能量強度，同時可簡化架構、降 低成本之光學元件。 【先前技術】 按，目前一般背光模組主要可分為側光式及直下式兩 種，其主要區別在於光源擺放位置不同，關於傳統直下式 背光模組架構10請參閱圖一所示，其主要係由光源11、 下擴散元件12、稜鏡片13、上擴散元件14、液晶面板15 所組成，光源11發出光線由下而上依序通過下擴散元件 12、稜鏡片13、上擴散元件14、液晶面板15 ;其中，下 擴散元件12之功用在於可使光線均勻化，上擴散片14之 主要功用則是防止稜鏡片13上之微結構刮傷並可增加視 角，而該稜鏡片13之主要功能為集光，其目的在於可將不 同方向大角度之光線L1導向至法線方向，以提高顯示器正 面輝度值，使得光線在進入液晶面板15時能作最有效之利 用，但傳統之稜鏡片13卻有光能量使用效率較低之缺點。 請參閱圖二A及圖二B所示美國專利US4791540號 「Light fixture providing normalized output」所提出 之光源模組架構20 ’其具有一光源21，該光源21不侷限 於直下式或側光式，於光源21之出光面211置放兩片稜鏡 片22、23，以將光線L2收集到法線方向，可提高正面亮 ' 1287110' 1287110 4 IX. OBJECT DESCRIPTION OF THE INVENTION · TECHNICAL FIELD OF THE INVENTION The present invention relates to an optical modulation element, and more particularly to a composite micro-structure having both light collecting and diffusing functions, which not only improves the use of the source. Efficiency and the intensity of the light energy in the normal direction, while simplifying the architecture and reducing the cost of optical components. [Prior Art] According to the current general backlight module, it can be divided into two types: side light type and direct type. The main difference is that the light source is placed at different positions. For the conventional direct type backlight module structure 10, please refer to Figure 1. It is mainly composed of a light source 11, a lower diffusing element 12, a cymbal 13, an upper diffusing element 14, and a liquid crystal panel 15. The light source 11 emits light from bottom to top through the lower diffusing element 12, the cymbal 13, and the upper diffusing element. 14. The liquid crystal panel 15; wherein the function of the lower diffusing element 12 is to homogenize the light, and the main function of the upper diffusing sheet 14 is to prevent scratching of the microstructure on the cymbal sheet 13 and to increase the viewing angle, and the cymbal sheet 13 The main function is to collect light. The purpose is to guide the large-angle light L1 in different directions to the normal direction to improve the front luminance value of the display, so that the light can be used most effectively when entering the liquid crystal panel 15, but the traditional The cymbal 13 has the disadvantage of being less efficient in using light energy. Referring to the light source module architecture 20' of the "Light fixture providing normalized output" shown in FIG. 2A and FIG. 2B, the light source module structure 20' has a light source 21, and the light source 21 is not limited to a direct type or a side light type. Two cymbals 22, 23 are placed on the light-emitting surface 211 of the light source 21 to collect the light L2 in the normal direction, which can improve the front light ' 1287110
度；該稜鏡片22、23並無擴散片功能，僅有集光功能，但 實際應用上，為了顧及最後出光之均勻度，往往需要在模 組架構中再添加擴散片。、 再請參閱圖三所示美國專利US6280063號 「Brightness enhancement article」所提出之光學元件 結構’該光學膜片30之上表面31具圓弧頂端312之稜形 結構311 ’下表面32則塗佈具擴散性之粒子犯或是具粗 糙之下表面，藉由上表面31之圓頂稜形結構31以及下層 之擴散表面，可達到㈣以及擴散效果，以取代傳統下擴 散片與稜鏡片；該專利所提出之光學膜片3G雖可同時達到 擴散性與集光性，然其係料崎之下表面32來散射光 線:再以上表面31之稜形結構31集戈，該粗链之下表面 32往往造成光能量大幅損失而使得出光量下降。 再請參閱圖四所示美國專利US6456437號「〇扒The cymbals 22 and 23 have no diffuser function and only have a light collecting function. However, in practical applications, in order to take into account the uniformity of the final light output, it is often necessary to add a diffusion sheet to the module structure. Please refer to the optical element structure proposed in the "Brightness enhancement article" of US Pat. No. 6,280,063, which is shown in Fig. 3. The upper surface 31 of the optical film 30 has a prismatic structure 311 of the arcuate tip 312. The diffusing particle or the rough surface, by the dome-shaped structure 31 of the upper surface 31 and the diffusion surface of the lower layer, can achieve (four) and diffusion effect to replace the traditional lower diffusion sheet and the cymbal; Although the optical film 3G proposed by the patent can simultaneously achieve diffusibility and light collection, the surface 32 of the material is scattered to scatter light: the prismatic structure 31 of the upper surface 31 is collected, and the lower surface of the thick chain 32 often causes a large loss of light energy and a decrease in the amount of light emitted. Please refer to US Patent No. 6,456,437, shown in Figure 4
Ught」所提出之光學膜 ι、’子、片40主要係於膜片表面製作兩種不同型離之The optical film ι, ', and 40 proposed by Ught are mainly made on the surface of the diaphragm to make two different types.
ίΓ示該微結構41、42係為尺寸不同之稜ί結 構41可將人射則法財向之光_微偏離 而微結構42則可將入射膜片法線方向之光 ^大角度之偏折’該#_賴鏡結構尺寸設計不 達到擴散均勻光線之效果，但實際運用時，由於 斜面為單—斜率規則結構，故同方向之入射 先會被偏折至同一方向，導致光均勻效果不佳。 户再者’前述習知專利均採用稜形微結構集光，其共同 片^全B#反ϋ缺f ’如圖五所示，#光線L5由法線入射 、片50時，會因稜形微結構5Γ之作用而偏折，並再度重 7 1287110 • , · 新射入膜片50，然而重新入射膜片50之光線卻未必平行 法線方向，換言之，經稜形結構51偏折後之光線L5無法 確保再以法線方向出射，且因重覆往返亦會造成光能量大 • 幅損失。 【發明内容】 有鑑於習知技術之缺失，本發明之主要目的在於提出 一種光學調制元件，其具有複合式微型結構，兼具集光與 • 擴散功能，不僅可提高先源使用效率以及法線方向之光能 量強度，同時可簡化架構、降低成本。 為達到上述目的，本發明提出一種光學調制元件，其 包含： 一第一光學面，係作為光線入射面； 一第二光學面，係作為光線出射面，於該第二光學面 之表面上設有至少一梯形與至少一弧形微結構，該梯形微 結構至少由三個面組成，其中至少兩個面為與基材相接之 _ 斜面，至少一面為水平面。 較佳地，該梯形微結構上之兩斜面之延伸線夹角係介 . 於30度〜150度之範圍内。 較佳地，任一梯形微結構上之二斜面之斜率可相同或 不同。 ‘ 較佳地’該光學糊元件之第二光學面上分別屬於不 同兩個梯形微結構的任二個斜面，彼此斜率可以不 度相同差一負號）。 較佳地，該梯形微結構與弧狀微結構之排列方式可為 8 ' 1287110 • . · 等比例或非等比例。 較佳地，該梯形微結構之高度可隨著延伸方向而不同。 ^ 較佳地，該梯形微結構於第二光學面上之延伸軌跡可 \ 為直線或曲線。 ， 較佳地，該弧形微結構於第二光學面上之延伸軌跡可 為直線或曲線。 較佳地，該弧形微結構之曲率可為半圓、非球面曲率 或部分圓形。 _ 較佳地，該第二光學面上任兩個梯形微結構，其高度 與間距可不同' 較佳地，該第二光學面上任兩個梯形微結構之水平 面，彼此寬度可不同。 較佳地，該第二光學面上任兩個弧狀微結構，彼此之 曲率、寬度、高度與間距可不同。 較佳地，該弧狀微結構底面積寬度係介於l//m〜500 # m之範圍内。 • 較佳地，該梯形微結構底面積寬度係介於l//m〜500 // m之範圍内。 較佳地，該梯形微結構水平面寬度係介於l//m〜500 "m之範圍内。 為達上述目的，本發明更提出一種光學顯示裝置，其 包含： 一顯示面板； 一背光裝置；以及 至少一光學調制元件，其係位於顯示面板與背光裝置 9 1287110 之間，該光學調制元件係包含： 一第一光學面，係作為光線入射面； 之矣：面’係作為光線出射面，於該第二光學面 f梯形與至少一弧形微結構’該梯形微 至：由一個面組成’其中至少兩個面為與基材相接之 斜面，至少一面為水平面。 較佳地，其係包含兩光學調制元件，該兩光學 件係彼此重疊且其微結構之延伸方向呈小於9〇度之”交角。 較佳地，該光學調制元件之梯形微結構之兩斜面 申線夾角係介於30度〜15〇度之範圍内。 較佳地’任一梯形微結構上之二斜面之斜率可相同或 不同。 ^ 較佳地，該光學調制元件之第二光學面上分別屬於 5兩個梯形微結構的任二個斜面，彼此斜率可以不同。 較佳地，該光學調制元件之梯形微結構弧 之排列方式可為等比例或非等比例。 微、'、。構 較佳地，該光學調制元件之弧形微結構之高度可隨菩 延伸方向而不同〇 較佳地，該光學調制元件之梯形微結構之高度可隨著 延伸方向而不同。 較佳地，該光學調制元件之梯形微結構於第二光學面 上之延伸軌跡可為直線或曲線。 較佳地，該光學調制元件之弧形微結構於第二光學面 上之延伸軌跡可為直線或曲線。 較隹地，該光學調制元件之弧形微結構之曲率可為半 1287110 圓、非球面曲率或部分圓形。 微』佳: 微結=光 較佳地，該光學調制元件之筮-風 微結構，彼此之曲率、t声 第一先予面上任兩個弧狀 較佳地，該*學二ΐ汐度與間柯不同。 介於l//m〜500 /zm之範圍内。之弧狀微結構底面積寬度係 較佳地，該光學調制 介於l //m〜500//m之範園内牛。之梯形微結構底面積寬度係 八於t佳地=光學調制元件之梯形微結構水平面寬度係 "於1 //m〜500 /zra之範圍内。 ，貴,查委員許於本發明之結構更 進-步之了解與認同，兹配合圖示詳細㈣如后。力 【實施方式】 用二之圖式來描述本發明為達成目的所使 = 而以下圖式所列舉之實施例僅為輔 委員瞭解’但本案之技術手段並不限 6。m:::’本r版光學調制元件 光線出射面韻第二先二光學面^係作為 %干面bZ之表面上設有至少一梯形 1287110 微結構63與至少一弧形微結構64,於圖六所示實施例中， 該梯形微結構63與弧形微結構64係複數間隔設置且平行 延伸設置於該第二光學面62之表面上；該梯形微結構63 ' 由兩個與基材相接之斜面631、632，以及介於該兩斜面 631、632間之一水平面633構成。 如圖七所示，該梯形微結構63可針對不同方向之入射 光L6作調制，通過水平面633(亦即法線Ln方向）之光線 L61可直接射出，這不同於傳統棱形微結構，梯形微結構 • 的平面部分可使本來就是法線方向的光直接出射，而稜形 微結構反而會使使法線方向入射的光全反射回去，而由稜 形微結構的幾何結構可知，會入射至稜形微結構，，尖頂 端的光線，大部分均為法線方向的光，故我們將稜形微 結構的尖頂端改成平面，使入射至尖頂端大部分是法線方 向的光可直接出射，降低全反射，但保留稜形微結構的其 他斜面，以將大角度的光偏折向法線方向，繼續保留傳統 稜鏡片之功能，以達到進一步提高中心亮度之目的。偏離 I 法線Ln之大角度光線L62，可藉由斜面631、632將其偏 折至靠近法線Ln方向，使由第二光學面62出射之光線大 多往法線Ln方向集中，該兩斜面631、632之斜率可相同 或不同，其延伸線夾角(9以介於30度〜150度之範圍内可 得較佳之效果，該梯形微結構63之底面積寬度wl及水平 面633之寬度w2則以介於1 // m〜500 // m之範圍内較佳； 其次，該弧形微結構64，其作用在於可使入射光L6較均 勻地偏折至不同方向，並有柔化光線之效果，至於該弧狀 微結構64底面積寬度w3則以介於1 # m〜500 // m之範圍内 較佳〇 12 1287110 、 » ·微 该 该 该 该 该 微 微 41 41 41 41 41 41 41 41 41 41 41 微 41 41 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 微 该 该 微 微 该Folding 'The #_ 镜 mirror structure size design does not achieve the effect of diffusing uniform light, but in practice, because the slope is a single-slope regular structure, the incidence in the same direction will be deflected to the same direction, resulting in uniform light effect Not good. The households of the above-mentioned patents all adopt the prismatic micro-structured light collection, and the common film ^Fu B# ϋ ϋ lack f ' as shown in Figure 5, #光L5 is incident from the normal line, the film 50 will be prismatic The microstructure is deflected by the action of 5Γ, and again weighs 7 1287110 • , · newly injected into the diaphragm 50, but the light incident on the diaphragm 50 is not necessarily parallel to the normal direction, in other words, after the prismatic structure 51 is deflected Light L5 is not guaranteed to exit in the normal direction, and it will cause a large loss of light energy due to repeated round trips. SUMMARY OF THE INVENTION In view of the deficiencies of the prior art, the main object of the present invention is to provide an optical modulation component having a composite micro-structure that combines the functions of collecting and diffusing, thereby improving the efficiency of the original source and the normal. The intensity of light energy in the direction can simplify the architecture and reduce costs. In order to achieve the above object, the present invention provides an optical modulation component comprising: a first optical surface as a light incident surface; and a second optical surface as a light exit surface disposed on a surface of the second optical surface There is at least one trapezoid and at least one arcuate microstructure, the trapezoidal microstructure consisting of at least three faces, at least two of which are sloping faces that are in contact with the substrate, at least one of which is a horizontal plane. Preferably, the angle between the extension lines of the two inclined surfaces on the trapezoidal microstructure is in the range of 30 degrees to 150 degrees. Preferably, the slopes of the two slopes on any of the trapezoidal microstructures may be the same or different. Preferably, the second optical faces of the optical paste elements belong to any two bevels of different trapezoidal microstructures, and the slopes of each other may be not the same as a minus sign). Preferably, the trapezoidal microstructure and the arc-shaped microstructure are arranged in a manner of 8 ' 1287110 • . . . is proportional or non-equal. Preferably, the height of the trapezoidal microstructure may vary with the direction of extension. Preferably, the extended trajectory of the trapezoidal microstructure on the second optical surface can be a straight line or a curved line. Preferably, the extended trajectory of the curved microstructure on the second optical surface may be a straight line or a curved line. Preferably, the curvature of the curved microstructure may be semicircular, aspherical or partially circular. Preferably, any two trapezoidal microstructures on the second optical surface may have different heights and pitches. Preferably, the horizontal planes of any two trapezoidal microstructures on the second optical surface may be different from each other in width. Preferably, any two arcuate microstructures on the second optical surface may differ in curvature, width, height and spacing from each other. Preferably, the arc-shaped microstructure bottom area width is in the range of l//m~500 #m. • Preferably, the trapezoidal microstructure has a bottom area width in the range of l//m to 500 // m. Preferably, the trapezoidal microstructure has a horizontal plane width ranging from 1/m to 500 "m. In order to achieve the above object, the present invention further provides an optical display device comprising: a display panel; a backlight device; and at least one optical modulation component disposed between the display panel and the backlight device 9 1287110, the optical modulation component system The method comprises: a first optical surface as a light incident surface; a surface: a surface as a light exit surface, and a trapezoidal and at least one curved microstructure on the second optical surface f. The trapezoidal micro to: consists of a surface 'At least two of the faces are slopes that meet the substrate, at least one of which is a horizontal plane. Preferably, it comprises two optical modulation elements which overlap each other and whose microstructure extends in an angle of less than 9 degrees. Preferably, the two bevels of the trapezoidal microstructure of the optical modulation element The angle of the application line is in the range of 30 degrees to 15 degrees. Preferably, the slopes of the two slopes on any of the trapezoidal microstructures may be the same or different. ^ Preferably, the second optical surface of the optical modulation element Preferably, the slopes of the trapezoidal microstructure arcs of the optical modulation elements may be equal or non-equal. Micro, ',. Preferably, the height of the curved microstructure of the optical modulation element may vary depending on the direction in which the bud is extended. Preferably, the height of the trapezoidal microstructure of the optical modulation element may vary with the direction of extension. The extending trajectory of the trapezoidal microstructure of the optical modulating element on the second optical surface may be a straight line or a curved line. Preferably, the curved trajectory of the curved microstructure of the optical modulating element on the second optical surface may be straight Or curved. The curvature of the curved microstructure of the optical modulation element may be half 1287110 circle, aspheric curvature or partial circle. Micro-good: micro-junction = light preferably, the optical modulation element is - wind microstructure, the curvature of each other, the first sound of the first sound on the surface, preferably two arcs are different, the difference between the two degrees is different from the difference between the two. Between l / / m ~ 500 / zm Preferably, the arc-shaped microstructure bottom area width is such that the optical modulation is in the range of l //m~500//m. The trapezoidal microstructure bottom area width is eight to t=the optical modulation element The width of the trapezoidal microstructure is "in the range of 1 / m ~ 500 / zra.", expensive, the member of the invention is more advanced and understanding of the structure of the invention, with the details of the figure (4) as after [Embodiment] The second embodiment is used to describe the present invention for the purpose of achieving = and the embodiments listed in the following figures are only known to the auxiliary members. However, the technical means of the present invention are not limited to 6. m::: 'This r version of the optical modulation component light exit surface rhyme second second optical surface ^ is provided as the surface of the % dry surface bZ to a trapezoidal 1287110 microstructure 63 and at least one curved microstructure 64. In the embodiment shown in FIG. 6, the trapezoidal microstructure 63 and the curved microstructure 64 are spaced apart from each other and extend in parallel to the second optical surface 62. On the surface; the trapezoidal microstructure 63' is composed of two inclined surfaces 631, 632 which are in contact with the substrate, and a horizontal surface 633 between the two inclined surfaces 631, 632. As shown in Fig. 7, the trapezoidal microstructure 63 can be modulated for incident light L6 in different directions, and the light L61 passing through the horizontal plane 633 (ie, the normal Ln direction) can be directly emitted, which is different from the conventional prismatic microstructure, and the planar portion of the trapezoidal microstructure can be The light in the normal direction is directly emitted, and the prismatic microstructure will cause the light incident in the normal direction to be totally reflected back. The geometry of the prismatic microstructure is known to be incident on the prismatic microstructure. Most of the light is in the normal direction, so we change the sharp tip of the prismatic microstructure into a plane, so that most of the light incident on the tip of the tip is normal, which reduces the total reflection, but retains the edge. shape Others inclined structure to deflect the light at large angles to the normal direction to retain the function of the traditional Prism sheet to achieve the purpose of further improving the brightness of the center. The large-angle ray L62 that deviates from the I normal line Ln can be deflected to the direction of the normal line Ln by the slopes 631 and 632, so that most of the light emitted by the second optical surface 62 is concentrated toward the normal line Ln. The slopes of 631 and 632 may be the same or different, and the angle of the extension line (9 may have a better effect in the range of 30 degrees to 150 degrees, and the bottom area width wl of the trapezoidal microstructure 63 and the width w2 of the horizontal plane 633 are Preferably, the arc-shaped microstructure 64 has a function of causing the incident light L6 to be more evenly deflected to different directions and to soften the light. The effect, as for the arc-shaped microstructure 64 bottom area width w3 is preferably in the range of 1 # m~500 // m 〇 12 1287110, »
於圖六所示之實施例中，該光學調制元件6〇具有複數 梯形微結構63與弧形微結構64，且梯形微結構63與弧形 微結構64係間隔設置，然該梯形微結構63與弧形微結構 • 64之外型及其排列設置方式並不限於此，請續參閱圖八A 至圖八E所示本發明其他不同態樣之梯形微結構與弧形微 結構搭配之實施例示意圖； 如圖八A所示實施例，該光學調制元件6〇a係由間隔 設置之具有不同外型之梯形微結構63、63a及弧形微結構 _ 64構成，該梯形微結構63a之斜面631a、632a之斜率大 於另一梯形微結構63之斜面631、632之斜率； 如圖八B所示實施例，該光學調制元件6〇b係由間隔 設置之具有不同外型之梯形微結構63、63b及弧形微結構 64構成，該梯形微結構63b之斜面631b、632b具有不同 斜率，且該斜面632b之斜率大於另一梯形微結構63之斜 面631、632之斜率； ’ 如圖八C所示實施例，該光學調制元件60c係由間隔 _ 没置之具有不同外型之梯形微結構63c、65c及弧形微結構 64、64c構成，該梯形微結構63c之水平面633c寬於^梯 形微結構65c之斜面65(：，而該弧形微結構64(：之弧面曲 度小於另一弧形微結構64 ,且該弧形微結構64(：之高度111 大於另一弧形微結構64之高度h2 ; 又 如圖八D所示實施例，該光學調制元件6〇d^由間隔 設置之具有不同外型之梯形微結構63dv65d及弧形微^構 64、64d構成，該梯形微結構63(1、65(1彼此之斜面631^、 632d、651d、652d之斜率不同，水平面633d、653d之寬 度不同，且其高度h3、h4亦不同，而該弧形微結構64、 13 1287110 64d彼此之弧面曲度不同，高度h5、h6亦不同； 圖八E則顯示將外型彼此不同之梯形微結構及弧形微 •結構相互搭配一起，且不限於梯形微結構及弧形微結構間 . 隔設置’可將兩不同外型之梯形微結構相鄰設置，亦可將 兩不同外型之弧形微結構相鄰設置，該梯形微結構可為正 梯形或歪斜梯形’任兩個梯形微結構之高度、間距可不同， 任兩個梯形微結構之斜面彼此斜率可不同，任兩個梯形微 結構之水平面彼此寬度可不同，該弧形微結構之曲率可為 馨半圓、非球面曲率或部分圓形，任兩個弧狀微結構彼此之 曲率、寬度、高度與間距可不同，且該梯形微結構與弧狀 微結構之排列方式可為等比例或非等比例，其搭配方式多 樣，在此不予贅述' 另請參閱圖九至圖十一所示，其顯示本發明之梯形微 結構及弧形微結構於第二光學面上之延伸執跡不同之實施 例示意圖；與圖六所示實施例不同，圖九所示實施例之梯 形微結構63及弧形微結構係同方向傾斜一角度0 1且 • 相互平行設置； 再如圖十所示實施例，該梯形微結構63及弧形微結構 6 4係於平面上作曲線婉挺’配合參閱圖十a、圖十B及圖 十C，由於梯形微結構63及孤形微結構64無高度變化， 因此無論橫斷面A-A、B-B或其任意位置之橫斷面’或本實 施例之前視圖，均可呈現如圖十8所示態樣，而其側視結 • 構則如圖十C所示具無高度變化； ‘ 再如爵十一所示實施例，其梯形微結構63呈現水平高 度不同之升降曲度，其外型概呈上下起伏之波浪狀，該弧 形微結構64則具有與該梯形微結構63相同起伏之曲度； 1287110 至於圖十二係顯示可將兩片光學調制元件6G彼此重 疊且其微結構之延伸方向具有—小於9()度之夾角^，藉 此可提升光均勻化。 至於圖十及圖十-所示具有曲度延伸軌跡之梯形微結 構63及弧雜結構64 ’無論水平或垂直之曲度均可依實 際所需而變化’亦可將圖六、圖九至圖十一等四種不同延 伸軌跡之實施結構相互組合，或任翻兩片彼此重叠，其 實施方式多樣化，在此亦不予贅述。 清參閱圖十三所示將本發明之光學調制元件結構應用 於光學顯示裝置之第-較佳實施例，該光學顯示裝置7〇包 3光源71、一顯示面板72、一背光裝置73以及一光學 調制元件74，該光源71係位於該顯示面板72底部且可發 射一入射光700，該背光裝置73係位於該顯示面板72之 上，該光學調制元件74係位於該背光裝置73之上，藉由 該光學調制元件74即可同時對該入射光7〇〇進行集中^擴In the embodiment shown in FIG. 6, the optical modulation element 6 has a plurality of trapezoidal microstructures 63 and curved microstructures 64, and the trapezoidal microstructures 63 are spaced apart from the curved microstructures 64. And the curved microstructures and the arrangement of the 64 shapes are not limited thereto, and the implementation of the matching of the trapezoidal microstructures and the curved microstructures of the other different aspects of the present invention shown in FIG. 8A to FIG. 8E is continued. For example, in the embodiment shown in FIG. 8A, the optical modulation element 6〇a is composed of trapezoidal microstructures 63 and 63a and arc-shaped microstructures 643 having different shapes, and the trapezoidal microstructures 63a The slope of the slopes 631a, 632a is greater than the slope of the slopes 631, 632 of the other trapezoidal microstructures 63. As shown in the embodiment of FIG. 8B, the optical modulation elements 6〇b are trapezoidal microstructures having different shapes and spacings. 63, 63b and an arc-shaped microstructure 64, the slopes 631b, 632b of the trapezoidal microstructure 63b have different slopes, and the slope of the slope 632b is greater than the slope of the slopes 631, 632 of the other trapezoidal microstructure 63; The embodiment shown in C, the light The modulating element 60c is composed of trapezoidal microstructures 63c, 65c and arcuate microstructures 64, 64c having different shapes, the horizontal plane 633c of the trapezoidal microstructure 63c is wider than the slope 65 of the trapezoidal microstructure 65c. (:, and the curved microstructure 64 (the arc curvature is smaller than the other arc microstructure 64, and the arc microstructure 64 (the height 111 is greater than the height h2 of the other arc microstructure 64; In another embodiment, as shown in FIG. 8D, the optical modulation component 6 is formed of spaced-apart trapezoidal microstructures 63dv65d and curved micro-structures 64, 64d having different shapes, and the trapezoidal micro-structure 63 (1) 65 (1) the slopes of the slopes 631, 632d, 651d, and 652d are different from each other, the widths of the horizontal planes 633d and 653d are different, and the heights h3 and h4 are different, and the curved microstructures 64, 13 1287110 64d are curved on each other. The curvature is different, and the heights h5 and h6 are also different; FIG. 8E shows that the trapezoidal microstructures and the curved micro-structures which are different from each other are matched with each other, and are not limited to the trapezoidal microstructure and the curved microstructure. 'The trapezoidal microstructures of two different shapes can be set adjacent to each other, or two The arcuate microstructure of the outer shape is adjacent to the outer shape, and the trapezoidal microstructure may be a positive trapezoid or a trapezoidal trapezoid. The height and the pitch of the two trapezoidal microstructures may be different, and the slopes of any two trapezoidal microstructures may be different from each other. The horizontal planes of any two trapezoidal microstructures may be different from each other. The curvature of the curved microstructure may be a semicircle, an aspherical curvature or a partial circular shape, and the curvature, width, height and spacing of any two arcuate microstructures may be Different, and the arrangement of the trapezoidal microstructure and the arc-shaped microstructure may be equal or non-equal, and the manner of matching is various, and will not be described here. Please also refer to FIG. 9 to FIG. A schematic diagram of an embodiment in which the trapezoidal microstructure and the curved microstructure of the invention are extended on the second optical surface; unlike the embodiment shown in FIG. 6, the trapezoidal microstructure 63 and the curved micro of the embodiment shown in FIG. The structure is inclined at an angle of 0 1 in the same direction and • are arranged in parallel with each other; further, as shown in the embodiment shown in FIG. 10, the trapezoidal microstructure 63 and the curved microstructure 6 4 are tied to the plane to make a curve. 10B and FIG. 10C, since the trapezoidal microstructure 63 and the isolated microstructure 64 have no height change, the cross section of the cross section AA, BB or any position thereof or the previous view of the embodiment can be presented. As shown in Fig. 10, the side view structure has no height change as shown in Fig. 10C; 'again, as shown in the example of the eleventh, the trapezoidal microstructure 63 exhibits different levels of elevation. The curvature is generally undulating in the shape of a wave, and the curved microstructure 64 has the same curvature as the trapezoidal microstructure 63; 1287110 As shown in Fig. 12, the two optical modulation elements 6G can be mutually The overlap and the extension direction of the microstructure have an angle of less than 9 (degrees), thereby enhancing light uniformity. As for the trapezoidal microstructure 63 and the arc structure 64' having the curvature extension track shown in Fig. 10 and Fig. 10, the curvature of the horizontal or vertical can be changed according to actual needs, and the figures 6 and 9 can also be The implementation structures of the four different extension trajectories, such as FIG. 11 and the like, are combined with each other, or the two pieces are overlapped with each other, and the implementation manner thereof is diversified, and details are not described herein. Referring to FIG. 13, the optical modulation device structure of the present invention is applied to a first preferred embodiment of an optical display device. The optical display device 7 includes a light source 71, a display panel 72, a backlight device 73, and a An optical modulation component 74 is disposed at the bottom of the display panel 72 and can emit an incident light 700. The backlight device 73 is disposed on the display panel 72. The optical modulation component 74 is disposed on the backlight device 73. By the optical modulation element 74, the incident light 7 同时 can be simultaneously concentrated and expanded
散雙重作用，使提升該光學顯示裝置7〇之光效率且且優 異之顯示特性。 、 再請參閱圖十四所示將本發明之光學調制元件結構應 用於光源模組裝置之第二較佳實施例，該光學顯示裝置8〇 包含一光源81、一顯示面板82、一背光裝置83以及二片 光學調制元件84、85，該光源81係位於讓顯示面板82底 部且可發射一入射光800，該背光裝置83係位於該顯示面 板82之上’該兩片光學調制元件84、85係以彼此重最且 其微結構之延伸方向具有一小於9 〇度夾角之狀態（可^考 圖十二所示態樣)設置於該背光裝置83之上，藉由該光學 調制元件84、85即可同時對該入射光800進行集中輿擴散 15 1287110 雙重作用，使提升該光學顯示裝置8G之光效率且具有優異 之顯示特性。 八 、 私=可知’本發明所提出之光學調制元件兼具集光與 功能’其梯形微結構可取代傳統背光模組之棱鏡 片/提兩光源使用效率以及法線方向之光能量強度，其弧 ΪίΐΓ則可取代傳統f光模組之上擴散片，提升視角與 ίϋΐ均勻性’可避免使用擴散片造成之光能量損失， 體老光模組之總出光能量可獲得提升，再者，由於本 :^利用微結構達到調制光線之目的，除可減少背光模組 使用量’於生產製造時也不需額外之塗佈或是粗糙 直^、Μ吏成本更為降低，另必須說明的是，前述僅係以 馮:^光源模組裝置為說明例，以本發明提供之具集光與 n、、>雙重功能微結構之光學調制元件，亦可適用於侧光 f或任何對光亮度及均勻性有高度需求之 其他裝置或設備。 能以准以ί所述者，僅為本發明之最佳實施例而已’當不 ^範^限定本發明所實施之範圍。即大凡依本發明申請專 蓋之〜所作之均等變化與修飾，皆應仍屬於本發明專利涵 禱。乾圍内’謹請貴審查委員明鑑，並祈惠准，是所至 【圖式簡單說明】 圖一係傳統直下式背光模組示意圖。The double function is to enhance the light efficiency and superior display characteristics of the optical display device 7 . Referring to FIG. 14 , a second preferred embodiment of the optical modulation device structure of the present invention is applied to a light source module device. The optical display device 8 includes a light source 81 , a display panel 82 , and a backlight device . 83 and two optical modulation elements 84, 85, the light source 81 is located at the bottom of the display panel 82 and can emit an incident light 800. The backlight device 83 is located on the display panel 82. The two optical modulation elements 84, The 85 series is disposed on the backlight device 83 in a state in which the weight direction of each other and the extension direction of the microstructure has an angle of less than 9 ( (the manner shown in FIG. 12), by the optical modulation element 84. 85 can simultaneously perform the concentrated 舆 diffusion 15 1287110 on the incident light 800 to improve the light efficiency of the optical display device 8G and have excellent display characteristics. VIII. Private = It can be seen that the optical modulation component proposed by the present invention has both light collecting and functioning. The trapezoidal microstructure can replace the prism sheet of the conventional backlight module and the efficiency of the two light sources and the light energy intensity in the normal direction. Arc Ϊ ΐΓ ΐΓ can replace the diffuser on the traditional f-light module, improve the viewing angle and uniformity 'can avoid the loss of light energy caused by the use of diffuser, the total light energy of the old light module can be improved, and Ben: ^Using the microstructure to achieve the purpose of modulating the light, in addition to reducing the amount of use of the backlight module', no additional coating or roughening is required in the manufacturing process, and the cost is further reduced. The foregoing is only a von:^ light source module device as an illustrative example, and the optical modulation component with the dual function micro-structure of the light collection and n, and > provided by the present invention can also be applied to the side light f or any pair of light. Other devices or devices with high brightness and uniformity. The scope of the present invention is defined by the following description of the preferred embodiments of the invention. That is, the equivalent changes and modifications made by the application of the present invention should remain the subject matter of the present invention. Inside the squad, please ask your review board member, and pray for it. It is the right way. [Figure is a simple description] Figure 1 is a schematic diagram of a traditional direct-lit backlight module.
圖一 A 源模組^構^圖二β係仍4791540號美國專利所提出之光 1287110 圖三係US6280063號美國專利所提出之光學元件結構 示意圖。 圖四係US6456437號美國專利所提出之光學膜片示意 圖。 阖五係傳統稜形微結構全反射之示意圖。 圖六係本發明提出之光學調制元件較佳實施例之立體 外觀圖。 圖七係圖六所示實施例之梯形微結構與弧形微結構頗 面視圖。 圖八A至圖八E係本發明其他不同態樣之梯形微結構 與弧形微結構搭配之實施例示意圖。 圖九至圖十一係本發明之梯形微結構及弧形微結構於 第二光學面上之延伸執跡不同之實施例示意圖。 圖十A係圖十之實施例之俯視圖。 圖十B係圖十A之橫斷面A-A、B-B之結構示意圖。 圖十C係圖十之實施例之右侧視圖。 圖十二係將兩片光學調制元件彼此重疊之態樣示意 圖。 圖十三係將本發明之光學調制元件結構應用於光學顯 示裝置之第一較佳實施例。 圖十四係將本發明之光學調制元件結構應用於光學顯 不裝置之第^一車父佳實施例。 【主要元件符號說明】 10-傳統直下式背光模組架構 17 1287110 11 -光源 12- 下擴散元件 13- 棱鏡片 14- 上擴散元件 15- 液晶面板 20-光源模組架構 21 -光源 211 -出光面 22、23-稜鏡片 30-光學膜片 31 -上表面 31卜稜形結構 312-圓弧頂端 32- 下表面 33- 具擴散性之粒子 40-光學膜片 41、42-微結構 50- 膜片 51- 稜形微結構 60、60a〜d-光學調制元件 61 -第一光學面 62-第二光學面 63、63a〜d、65c、65d-梯形微結構 63l·、631a〜d、632、632a〜d、651d、652d-斜面 1287110 * * 633、633c-水平面 64、64c、64d-弧形微結構 70、 80-光源模組裝置 71、 81-光源 72、 82-顯示面板 73、 83-背光裝置 74、 84、85-光學調制元件 700、800-入射光 . hi〜h6-南度 LI、L2、L4、L5、L6卜 L62-光線 L6-入射光 Ln-法線 wl-梯形微結構底面積寬度 w2-梯形微結構水平面寬度 w3-弧形微結構底面積寬度 I θ、Θ 2-夾角 Θ卜角度 19Figure 1 A source module structure ^ Figure 2 β system is still proposed by the U.S. Patent No. 4,791,540. 1287110 Figure 3 is a schematic diagram of the optical element structure proposed in U.S. Patent No. 6,628,063. Figure 4 is a schematic illustration of an optical film proposed by U.S. Patent No. 6,456,437. A schematic diagram of the total reflection of the traditional prismatic microstructure of the 阖5 series. Figure 6 is a perspective view of a preferred embodiment of the optical modulation element proposed by the present invention. Figure 7 is a perspective view of the trapezoidal microstructure and the curved microstructure of the embodiment shown in Figure 6. 8A to 8E are schematic views showing an embodiment of the matching of the trapezoidal microstructure and the curved microstructure of the other different aspects of the present invention. 9 to 11 are schematic views showing an embodiment in which the trapezoidal microstructure and the curved microstructure of the present invention are different in the extension of the second optical surface. Figure 10A is a plan view of an embodiment of Figure 10. Figure 10B is a schematic view showing the structure of the cross sections A-A and B-B of Figure 10A. Figure 10C is a right side view of the embodiment of Figure 10. Fig. 12 is a schematic view showing a state in which two optical modulation elements are superposed on each other. Figure 13 is a first preferred embodiment of the optical modulation element structure of the present invention applied to an optical display device. Fig. 14 is a view showing an embodiment in which the optical modulation element structure of the present invention is applied to an optical display device. [Main component symbol description] 10- Traditional direct-lit backlight module architecture 17 1287110 11 - Light source 12 - Lower diffusing element 13 - Prism sheet 14 - Upper diffusing element 15 - Liquid crystal panel 20 - Light source module architecture 21 - Light source 211 - Light output Face 22, 23 - cymbal 30 - optical diaphragm 31 - upper surface 31 rib structure 312 - arc tip 32 - lower surface 33 - diffusing particles 40 - optical diaphragm 41, 42 - microstructure 50 - Diaphragm 51 - prismatic microstructures 60, 60a - d - optical modulation element 61 - first optical surface 62 - second optical surface 63, 63a ~ d, 65c, 65d - trapezoidal microstructure 63l ·, 631a ~ d, 632 , 632a~d, 651d, 652d-bevel 1287110 * * 633, 633c - horizontal plane 64, 64c, 64d - curved microstructure 70, 80 - light source module device 71, 81 - light source 72, 82 - display panel 73, 83 - Backlighting means 74, 84, 85 - Optical modulation elements 700, 800 - Incident light. hi~h6 - Southern LI, L2, L4, L5, L6 Bu L62 - Light L6 - Incident light Ln - Normal wl - Trapezoidal micro Structure bottom area width w2-trapezoidal microstructure water level width w3-arc microstructure bottom area width I θ, Θ 2-angle angle 角度 angle 19