M361635 五、新型說明： 【新型所屬之技術領域】 本創作係有關於-款新型之可撓 < 背投影螢幕，尤指一 種具有微結構及複合材料搭配之光賴片及此膜片的製作方 法。 【先前技術】 背投影顯示器係以其大螢幕、圖像清晰爲特色，背投影 顯示器除了具有無輻射、畫面尺寸大等優點外，更可直接接 上電腦或是其他影音設備，達到最大的娛樂效果。因此，隨 著生活水準的提高和居住條件的改善，背投影顯示器愈來愈 受到消費者的青睞。 背投影顯示器按照其投影技術來區分，可以分成陰極射 線管（Cathode Ray Tube，CRT)以及微顯示器（Microdisplay) 二種型式。其中又以微顯示器螢幕（Microdisplay Screen)被 廣泛地運用於背投電視機（Rear Projection TV )之螢幕、終 端機螢幕（Monitor Screen )、及多媒體展示螢幕（Multi -screenM361635 V. New description: 【New technology field】 This creation department has a new type of flexible & rear projection screen, especially a kind of micro-structure and composite material with light film and the production of this film. method. [Prior Art] The rear projection display features its large screen and clear image. In addition to its advantages of no radiation and large screen size, the rear projection display can be directly connected to a computer or other audio and video equipment for maximum entertainment. effect. Therefore, with the improvement of living standards and the improvement of living conditions, rear projection displays are increasingly favored by consumers. The rear projection display is distinguished according to its projection technology and can be divided into two types: a cathode ray tube (CRT) and a micro display (microdisplay). Among them, the Microdisplay Screen is widely used in the rear projection TV (Rear Projection TV) screen, the terminal screen (Monitor Screen), and the multimedia display screen (Multi-screen).
Installation)等等。 請參照圖一，微顯示器螢幕係為搭配一穿透型背投影螢 幕’其主要由菲涅耳透鏡板（Fresne丨Lens Sheet) 1與呈像幕 如柱狀透鏡板（LenticularLens Sheet) 2所構成。其中，菲涅 耳透鏡板1的目的為將投影機3投射出來的放射狀入射光先 3 M361635 射入菲淫耳透鏡板1後藉由折射使其形成平行光射出，再射 至柱狀透鏡板2，藉由柱狀透鏡板2的結構以及其内部的添 加劑，使其呈像並可控制左右和上下的視角和高對比；如美 國專利5880887。 另外還有一種搭配菲涅耳透鏡板的圓珠呈像幕，其是以 圓形球體做為入光面，中間並以黑色顏料填補以提高對比， 此成像幕的優點在於有較佳的對比以及上下左右均有相同的 視角，，如美國專利 4849265、6417966、6600599、6695453、 20020034618 。 隨者投影機在亮度以及均勻性的進步，許多場所在使用 背投影顯示裝置時不再使用菲涅耳透鏡板，而單獨圓珠呈像 幕來使用；但是因此造成所謂的太陽效應以及光班現象；所 謂的太陽效應成因為當投影機的光束投射出去的主向量不變 時，因少了菲涅耳透鏡板所以大多數的光能量仍沿著投射方 向刖進’右散射幕無法完全達到散射功能時，人眼與投影鏡 頭連成一直線觀看時會看到螢幕的亮度高於其他區域，且隨 著人眼的移動此亮班也會跟著移動(請參照圖二)就會造成太 1¼效應，光班現象則疋由於可以將每個玻璃珠視為單獨的出 光點，因此在觀看螢幕時會再成視覺上的閃爍感稱之為光班 (speckle)，此現象容易使觀賞者長時間觀看後眼睛不適。 【新型内容】 有鑑於上述課題’本創作之目的為提供一種可撓式背投 4 M361635 w螢幕及，、製作方法，使其當翻在鱗科透鏡板的情況 下無太陽效應且能有效解決光班現象。 緣是，為達上述目的，本創作可撓式背投影榮幕包含一 具複數非週期性排列之圓形球體做為第—入光面，球體與球 體之間的平坦部以黑色或灰色之_旨填補；再以兩層或兩層 以上不同折射率之複合材難著做為第二人絲，最後以感Installation) and so on. Referring to FIG. 1, the microdisplay screen is equipped with a penetrating rear projection screen, which is mainly composed of a Fresnel lens sheet 1 and a lens such as a Lenticular Lens Sheet 2. . The purpose of the Fresnel lens plate 1 is to project the radial incident light projected by the projector 3 into the spectacles lens 1 by refracting, and then refracting to form parallel light, and then projecting to the lenticular lens. The plate 2 is imaged by the structure of the lenticular lens sheet 2 and its internal additives and can control the left and right and upper and lower viewing angles and high contrast; as shown in U.S. Patent 5,880,887. There is also a bead-like curtain with a Fresnel lens plate, which is made up of a circular sphere as a light-incident surface, filled with black pigment in the middle to improve contrast. The advantage of this imaging screen is that there is a better contrast. And the same viewing angles, such as the US patents 4849265, 6417966, 6600599, 6695453, 20020034618. With the advancement of brightness and uniformity of the projector, Fresnel lens plates are no longer used in many places when using the rear projection display device, and the single bead is used as a curtain; however, the so-called solar effect and the light class are caused. Phenomenon; the so-called solar effect is because when the main vector of the projector's beam is not changed, most of the light energy still breaks along the projection direction because the Fresnel lens plate is missing. The right scattering screen cannot be fully realized. When the scattering function is used, the human eye and the projection lens are connected in a straight line to see that the brightness of the screen is higher than other areas, and as the human eye moves, the light shift will follow the movement (please refer to Figure 2). The effect, the light shift phenomenon is because each glass bead can be regarded as a separate light exit point, so when viewing the screen, it will become a visual flicker called a speckle, which is easy for the viewer to grow. Eyes are uncomfortable after watching time. [New content] In view of the above-mentioned topics, the purpose of this creation is to provide a flexible rear projection 4 M361635 w screen, and a manufacturing method thereof, so that it can be effectively solved without turning the sun on the scale lens plate. Light shift phenomenon. The reason is that, in order to achieve the above purpose, the flexible back projection glory of the creation includes a plurality of non-periodic circular spheres as the first-into-light surface, and the flat portion between the sphere and the sphere is black or gray. _The purpose is to fill; then two or more layers of different refractive index composites are difficult to be the second human silk, and finally the sense
壓材料做為出絲，再絲錢材料轉在任何投明或霧面 的板材上，如玻璃或壓克力板；藉由控制圓珠球體與樹醋層 的堆積深度及各樹s旨層中不同折射率的特性達到克服太陽效 應以及光班的現象。 【實施方式】 乂下將> …、相關圖4 ’說明依本發明較佳實施例之投影 螢幕及其製造方法。 /百先’請參照圖三之一以說明本發明較佳實施例之背投 影營幕。如圖三之-卿，崎投影螢幕包含—複數非週期 ^排列之BI珠層4作為續辆，其能將场光聚焦後再擴 政至J下個”質中、内含有黑色鋪之第二細旨層5，以提 高對比、第三細旨層6及如樹_ 7，將光線作更進-步 的散射、錢錢膠層8 ;科請參關三之二所示，由立 體顯微鏡可清楚看出複數_期性排列之圓珠層 4以及第 —*樹自旨層5。 其中，圓珠層4粒徑可為1〇 〜200um，折射率1.4〜2.0 5 M361635 的圓形且表面光滑的透光材料，如玻璃珠、壓克力粉末；本 實施例中’圓珠層4係以55〜80#折射率為1.9的玻璃珠。 第二樹酯層5為一混合黑色顏料之樹酯層，材質可為： 聚甲基丙稀酸曱酉旨(Polymethyl methacrylate，PMMA)、聚碳 酸酯（polycarbonat，PC)、聚氯乙烯（P〇ly vinyl Chloride， PVC )、聚丙烯（P〇lypropyiene，pp )、聚乙烯(p〇lyethylene， PE)、聚脲醋（Polyurethane，：PU)、聚苯乙烯（P〇lyStyrene， # PS)，第二樹酯層5厚度需小於圓珠的半徑；本實施例中， 第二樹酯層5係以聚脲酯混合10% Ciba Black顏料，厚度為 5um 〇 第三樹醋層6材質可為：聚碳酸醋（polycarbonat，PC )、 聚氯乙烯（Poly Vinyl Chloride，PVC )、聚丙烯 (Polypropylene，PP)、聚乙烯(Polyethylene，PE)、聚脲酯 (Polyurethane，PU)、聚苯乙浠（Polystyrene，PS);第 三樹酯層6的厚度必須使埋在第三樹酯層中的玻璃珠底部與 第四樹醋層7的距離a (請參考圖四之一)為3 ~ 100um，本實 施例中，第三樹醋層6係為厚度25um之聚脲酉旨 (Polyurethane，PU ) ’ a 為 5um。 第四樹酯層係7材質可為：聚碳酸酯（polycarbonat， PC )、聚氯乙烯（Poly Vinyl Chloride，PVC )、聚丙烯 (Polypropylene，PP)、聚乙浠(Polyethylene，PE)、聚脲酉旨 (Polyurethane，PU)、聚苯乙烯（Polystyrene，PS)，第 6 M361635 謂醋層6與第四樹酯層7不選用折射率相同的材料以提高 光學散射的效果;本實施例中，第四樹醋7層係為厚度論瓜 之聚氯乙烯。 最後第四樹酯7層後再貼合感壓膠層8做為與黏著在任 何投明或霧面的板材上，如玻璃或壓克力板。 其次’請參照圖五以說明本發明投影螢幕之製造方式。 請參照圖五之一，首先在一塑膠基材9塗佈第一樹酯層1〇。 • 塑膠基材9可為厚度為25〜250um的苯乙烯-對苯二曱酸膜 (Polyethylene terephthalate，PET )、聚碳酸酯膜 (polycarbonat，PC);本實施例中，塑膠基材9為厚度1〇〇um 之苯乙烯-對苯二曱酸膜（Polyethylene terephthalate，PET)。 第一樹酯層10為一熱塑性樹酯，材質可為：聚氯乙烯 (Poly Vinyl Chloride，PVC )、聚丙烯（p〇lypropylene，pp )、 聚乙烯(Polyethylene，PE)、聚脲酯（p〇lyUrethane，pu)、 ❿ 聚苯乙烯（Polystyrene，PS);本實施例中，第一樹酯層ι〇 為厚度 30um 之聚脲醋（Polyurethane，PU)。 再取一内含黑色顏料的樹酯塗佈形成第二樹酯層5，第 二樹酯層5為一熱塑性樹酯’材質可為：聚氯乙烯(p〇ly Vinyl Chloride，PVC )、聚丙稀（Polypropylene，PP )、聚乙烯 (Polyethylene，PE)、聚脲醋（Polyurethane，PU)、聚苯 乙烯（Polystyrene，PS);第二樹酯層5的厚度c (請參考 圖四之二)加上b的總高度不得大於圓珠的直徑；本實施例 7 M361635 中’第一樹醋層5係以聚脲醋（Poiym^hane，PU)混合1004 Ciba Black顏料’厚度為30um。 接下來在第二樹酯層5上灑下粒徑55〜80 um折射率 為1.95的玻璃珠圓珠4，並施壓使此圓珠體貫穿第二樹酯層 5深埋入第一樹酯層1〇中，埋入第一樹酯層1〇的深度b (請 參考圖四之二)必須小於圓珠的半徑，本實施例中b為乃um。 接下來再塗佈第三樹酯層6，本實施例中，第三樹酯層 φ 6係為厚度4〇um之聚脲酯（p〇iyUrethane，PU)。然後取一熱 塑性薄膜7以60〜80〇C的高溫下以熱壓使其結合在一起形成 第四樹醋層7 ’如圖五之二所示；本實施例中，第四樹醋7 層係為厚度150um之聚氯乙烯。 最後貼合感壓膠層8之後將圓珠層連同第二樹酯層5、 第三樹醋層6、第四樹醋層7 一併從第一樹醋層1〇撥離，如 圖五之三所示。 * 此外’第三樹醋層6亦可在此樹醋中添加黑色顏料，藉 以提高對比。 此外，第三樹酯層6亦可在此樹酯中添加擴散粒子，藉 以降低光班現象。 此外，第二樹酯層6亦可在此樹酯中添加玻璃微珠，藉 以提高輝度。 曰 此外，第四樹酯層7亦可在此樹酯中添加擴散粒子，擴 散粒子的折射率為丨.4〜165，藉以降低光班現㈣及太陽效 8 M361635 應。 此外，第四樹醋層7 ,亦可在一基材如聚醋（p〇lyester， PET )、聚碳酸醋（polycarbonat ’ pC )、聚氯乙烯（p〇ly vinyl Chloride，PVC )、聚丙烯（p〇iypr〇pyiene，pp )、聚乙烯 (Polyethylene，PE)、聚脲酯（Polyurethane，pu)、聚苯 乙烯（Polystyrene ’ PS)表面塗佈混有擴散粒子的樹酯。 【圖式簡單說明】 圖一係習知背投螢幕示意圖。 圖一係太陽效應成因的示意圖。 圖三之一係本創作之結構侧視圖與應用方式。 圖三之二係非週期性排列之圓珠層金相顯微鏡俯視照片 圖四之一係本創作之局部結構示意圖 圖四之二係本創作之局部結構示意圖 圖五之一係本創作之製造方式示意圖 圖五之二係本創作之製造方式示意圖 圖五之三係本創作之製造方式示意圖 【主要元件符號說明】 〔習知〕 1菲>圼耳透鏡板 2柱狀透鏡板 3投影機 M361635 〔本創作〕 4圓珠層 4A入光面 5第二樹酯層 6第三樹酯層 7第四樹酯層 8感壓膠The pressure material is used as the silk, and the silk material is transferred to any cast or matte sheet, such as glass or acrylic sheet; by controlling the stacking depth of the ball sphere and the tree vine layer and the layers of each tree The characteristics of different refractive indices reach the phenomenon of overcoming the solar effect and the light shift. [Embodiment] A projection screen and a method of manufacturing the same according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. / 百先' Please refer to Figure 3 for a description of the rear projection screen of the preferred embodiment of the present invention. As shown in Figure 3 - Qing, the Saki projection screen contains - a plurality of non-period ^ aligned BI bead layers 4 as a continuation vehicle, which can focus the field light and then expand the policy to J next "quality, containing black shop" The second layer 5 is to improve the contrast, the third layer 6 and the tree _ 7, the light is further step-by-step scattering, the money layer 8; the section is shown in the third, the three-dimensional The microscope can clearly see the complex _phased arrangement of the bead layer 4 and the -* tree from the target layer 5. Among them, the bead layer 4 can have a particle diameter of 1 〇 to 200 um and a refractive index of 1.4 to 2.0 5 M361635. The light transmissive material having a smooth surface, such as glass beads and acrylic powder; in the present embodiment, the 'bead layer 4 is a glass bead having a refractive index of 1.9 with a thickness of 55 to 80. The second resin layer 5 is a mixed black. The pigment resin layer can be made of: Polymethyl methacrylate (PMMA), Polycarbonate (PC), Polyvinyl chloride (PVC), Polypropylene. (P〇lypropyiene, pp), polyethylene (p〇lyethylene, PE), polyurethane (:PU), polystyrene (P〇lyStyrene, # PS), the thickness of the second resin layer 5 is smaller than the radius of the ball; in this embodiment, the second resin layer 5 is mixed with 10% Ciba Black pigment with a polyurea, and the thickness is 5um 〇 the third tree vine layer 6 The material can be: polycarbonate (PC), polyvinyl chloride (Poly Vinyl Chloride, PVC), polypropylene (PP), polyethylene (Polyethylene, PE), polyurethane (PU), poly Polystyrene (PS); the thickness of the third resin layer 6 must be such that the distance between the bottom of the glass beads buried in the third resin layer and the fourth tree vine layer 7 is a (refer to FIG. 4) 3 ~ 100um, in this embodiment, the third tree vine layer 6 is a thickness of 25um polyurea (Polyurethane, PU) 'a is 5um. The fourth resin layer 7 material can be: polycarbonate (polycarbonat , PC ), Poly Vinyl Chloride (PVC), Polypropylene (PP), Polyethylene (PE), Polyurethane (PU), Polystyrene (PS) , No. 6 M361635, that the vinegar layer 6 and the fourth resin layer 7 do not use the same refractive index material to improve optical scattering. Fruit; the present embodiment, a fourth layer 7 vinegar tree based on a thickness of melon polyvinyl chloride. Finally, the seventh resin layer 7 is laminated with the pressure sensitive adhesive layer 8 as a bonding material to any of the cast or matte sheets, such as glass or acrylic sheets. Next, please refer to FIG. 5 to explain the manufacturing method of the projection screen of the present invention. Referring to FIG. 5, first, the first resin layer 1 is coated on a plastic substrate 9. The plastic substrate 9 may be a polyethylene terephthalate (PET) or a polycarbonate film (PC) having a thickness of 25 to 250 um. In this embodiment, the plastic substrate 9 is a thickness. 1〇〇um styrene-terephthalate film (PET). The first resin layer 10 is a thermoplastic resin, and the material can be: Poly Vinyl Chloride (PVC), Polypropylene (Pp), Polyethylene (PE), Polyurea (P). 〇 lyUrethane, pu), polystyrene (PS); in this embodiment, the first resin layer ι is a polyurethane (PU) having a thickness of 30 μm. Then, a resin containing a black pigment is coated to form a second resin layer 5, and the second resin layer 5 is a thermoplastic resin. The material can be: p〇ly Vinyl Chloride (PVC), polypropylene. Polypropylene (PP), Polyethylene (PE), Polyurethane (PU), Polystyrene (PS); Thickness c of the second resin layer 5 (refer to Figure 4) The total height of b is not greater than the diameter of the ball; in the embodiment 7 M361635, the first tree vine layer 5 is made of polyurea (PU) mixed with 1004 Ciba Black pigment and has a thickness of 30 um. Next, a glass bead ball 4 having a particle diameter of 55 to 80 um and a refractive index of 1.95 is sprinkled on the second resin layer 5, and pressed to penetrate the second resin layer 5 deep into the first tree. In the ester layer, the depth b of the first resin layer 1 埋 (refer to FIG. 4 bis) must be smaller than the radius of the ball. In the present embodiment, b is um. Next, a third resin layer 6 is applied. In this embodiment, the third resin layer φ 6 is a polyurea (PU) having a thickness of 4 μm. Then, a thermoplastic film 7 is taken by heat pressing at a high temperature of 60 to 80 〇C to form a fourth tree vine layer 7' as shown in FIG. 5; in this embodiment, the fourth tree vinegar 7 layers It is a polyvinyl chloride having a thickness of 150 μm. After the pressure sensitive adhesive layer 8 is finally attached, the ball layer is further separated from the first tree vine layer 1 together with the second resin layer 5, the third tree vine layer 6, and the fourth tree vine layer 7 as shown in FIG. The third is shown. * In addition, the third tree vinegar layer 6 can also add black pigment to the tree vinegar to improve the contrast. In addition, the third resin layer 6 may also add diffusion particles to the resin to reduce the light shift phenomenon. Further, the second resin layer 6 may also add glass beads to the resin to increase the luminance.曰 In addition, the fourth resin layer 7 may also add diffusion particles to the resin, and the refractive index of the dispersed particles is 丨.4~165, thereby reducing the light (4) and the solar effect 8 M361635. In addition, the fourth tree vinegar layer 7 can also be on a substrate such as polypaste (PET), polycarbonate (pC), polyvinyl chloride (PVC), polypropylene. (p〇iypr〇pyiene, pp), polyethylene (Polyethylene, PE), polyurethane (pu), polystyrene (PS) are coated with a diffusing particle-containing resin. [Simple description of the diagram] Figure 1 is a schematic diagram of a conventional rear projection screen. Figure 1 is a schematic diagram of the cause of the solar effect. One of the three figures is the side view and application of the structure of the creation. Figure 3 bis is a non-periodicly arranged bead layer metallographic microscope. Photograph of the top view of the four parts of the original structure of the creation. Figure 4 is a schematic diagram of the partial structure of the creation. Figure 5 is the manufacturing method of this creation. Schematic diagram 5 bis is the schematic diagram of the manufacturing method of this creation. Figure 5 bis is the schematic diagram of the manufacturing method of this creation [main component symbol description] [Practical] 1 Philippine gt; 圼 lens plate 2 cylindrical lens plate 3 projector M361635 [This creation] 4 bead layer 4A into the glossy surface 5 second resin layer 6 third resin layer 7 fourth resin layer 8 pressure sensitive adhesive