1300502 九、發明說明： 【發明所屬之技術領域】 本發明係’-導光之複合結構，特狀關於一抗炫光 之導光之複合結構。 【先前技術】 現今的生活中經常會需要使用到一些影像的顯示技術， 尤其是應用在一些低耗電的可攜式電子設備的顯示裝置上。液 a曰顯示(LCD)為應用在這些顯示裝置的主要技術之一，其需要 外部的光源來呈現影像。然而在這些可攜式電子設備通常是以 電池作為其唯一的電力來源，在省電的考量下，如何提高光的 利用效能便變得很重要。 因此’有許多提高光照射的效能之技術應用於液晶顯示 裝置上’上述之技術不僅是應用在可攜式電子設備上，也被廣 泛地應用在影像投影上，其主要分為DMD(Digital Mirror Device)投影與LCD投影，所投影的影像最終是藉由某些媒體 來呈現給觀眾看，觀眾所看到的影像品質與媒體有很大的關 係。通常是以屏幕(screen)來作為被投影的媒體，依據觀眾的 環境與所用的投影理論，此屏幕可能被用做於前投影(丘〇nt 5 1300502 projection)或内投影(rear projection)。 •载體14 擴散片的作用是讓射出的光分怖更加平均，使w正 不到點規律性區塊或點的存在，微鏡片可做為擴散片的一種應 用。微鏡片（microlens)也被廣汎地應用在顯示與投影方面〜 第一圖所示，微鏡片12通常是以陣列方式來排列在一1300502 IX. Description of the Invention: [Technical Field of the Invention] The present invention is a composite structure of a light guide, which is a composite structure of light guide light for a glare-resistant light. [Prior Art] In today's life, it is often necessary to use some image display technology, especially on display devices of some low-power portable electronic devices. Liquid a display (LCD) is one of the main techniques applied to these display devices, which requires an external light source to present an image. However, in these portable electronic devices, batteries are usually the only source of power. Under the consideration of power saving, how to improve the utilization efficiency of light becomes very important. Therefore, there are many technologies for improving the efficacy of light irradiation applied to liquid crystal display devices. The above technology is not only applied to portable electronic devices, but also widely used in image projection. It is mainly divided into DMD (Digital Mirror). Device) Projection and LCD projection, the projected image is finally presented to the viewer through some media, and the image quality seen by the viewer has a great relationship with the media. Usually the screen is used as the projected medium. Depending on the viewer's environment and the projection theory used, this screen may be used for front projection (next nt 5 1300502 projection) or rear projection. • The role of the diffuser of the carrier 14 is to make the emitted light more evenly distributed, so that w is not in the presence of regular blocks or dots, and the microlens can be used as an application of the diffuser. Microlens are also widely used in display and projection. ~ The first figure shows that the microlenses 12 are usually arranged in an array.
上。微鏡片陣列通常是以模躲形成，由於考量到製程上的困 難度，微鏡片間-般都保持著間隙，因此在間隙部份對於光的 照射效能便被忽略。如果能賴隙部份的人射光加以利用，便 可以提高光的照射效能。 【發明内容】 由於考里到製程上的哪度與成本，許多微鏡片間一搬 都保持著卩猶，耻翔神份對於光_概能便被忽略， 為了更提升光的照射效穌發明之—目祕在細陣列上加 上透光材質來擴大微鏡片之外型來涵蓋微鏡片陣列之間隙 _升微鏡片陣列之間隙部份人射光的照射效能。 本發明之另—目⑽提供-抗磨層覆蓋在微鏡片陣列之 間隙部份與微鏡片表面上，以減少括傷。 6 !3〇〇5〇2 本發明之再一目的係提供一光吸收層覆蓋在微鏡片陣列 之間隙部份與微鏡片的部份表面上，以減少炫光。 據此，本發明揭示一種導光之複合結構，包含由複數個 微鏡片所組成之微鏡片系統與承載微鏡片系統之承載媒體 層。各微鏡片係被加上一透光材質來擴大微鏡片之外型來涵蓋 微鏡片間之間隙部份，並且部份透光材質之表面被覆以一光吸 收層，藉以降低炫光。微鏡片的排列更可以是非規率性的排 列，以降低光干射之影響。 【實施方式】 本發明在此所探討的方向為—餅光之複合結構。為了 能徹底地瞭解本發明，將在刊的贿巾提丨詳盡的步驟及其 組成。顯然地，本發明的施行並未限定於相關技藝者所熟習的 特殊、、、田$另-方面’眾所周知的組成或步驟並未描述於細節 中’以避免造成本發明不必要之限制。本發明的較佳實施例會 詳細描述如下，_除了這卿細贿之外，本發 泛地施行在其他的實施射，且本發明的麵不受限定，其^ 之後的專利範圍為準。 八 7 1300502 般微鏡片陣列在排列上都存在著間隙，這是導因於製 程上困難度的考量，使得在_部份的人射光料被利用。本 發明係在微㈣_上再塗佈-層透紐f來加大微鏡片之 外型以擴及間_份，藉以提升光的照設效能。 本發明之一具體實施例係一種導光之複合結構，如第二 圖所不’包含一微鏡片系統22與至少-承載微鏡片系統之承 載媒體層24。所述之微鏡片系統22包含複數個微鏡片222， 每一個微鏡片222係由一第一層2221與一第二層2222所構 成。本具體實施例細第—層2221與第二層迎來表示微鏡 片為複數層結構，並非用以限制本具體實施例。另外，各層的 折射率可以是全部_、全部不同或部份相同。其巾微鏡片系 統22係被配置在承載媒體層24上，微鏡片系統具有預定的物 理特性與絲雜來控縣人紐織#祕22上的路徑， 藉以提供一光域，使得微鏡片系統22與承載媒體層24形成具 有導光性質的光擴散屏幕。 其中最外層之第二層2222可以是一抗磨(durable)材質所 形成，可以用來減低因磨損所造成的傷害。另外，上述之第一 折射率可以是相同或不同於第二折射率，並且第一折射率可以 8 1300502 是小於第二折射率或大於第二折射率，以提供不同的物理特性 與光學特性’其巾上狀物理性值包含反射缝、半徑、大小、 點距、外型、光軸傾向與對稱性。例如第三圖所示，當第一折 射率可以是小於第二折射率時’光入射於第一層2221時，部 份的入射光28會經過兩次全反射才折射出去，如此入射在微 透鏡222週圍部份的入射光28 _、射入徑便會被控制向微透 鏡222中心來集中。on. The microlens array is usually formed by die-cutting. Due to the difficulty in the process, the gap between the microlenses is generally maintained, so the light-irradiating effect in the gap portion is neglected. If the light from the ray portion is used, the light irradiation efficiency can be improved. [Summary of the Invention] Due to the degree and cost of the test to the process, many of the micro-lens are kept in the same movement, and the shame of the gods is neglected for the light, in order to enhance the illumination of the light. - The secret is to add a light-transmissive material to the thin array to expand the micro-lens shape to cover the gap of the micro-lens array - the illumination effect of the human part of the gap between the micro-lens arrays. Another object of the present invention (10) provides that an anti-wear layer covers the gap portion of the microlens array and the surface of the microlens to reduce scratches. 6!3〇〇5〇2 A further object of the present invention is to provide a light absorbing layer covering the gap portion of the microlens array and a portion of the surface of the microlens to reduce glare. Accordingly, the present invention discloses a light directing composite structure comprising a microlens system comprised of a plurality of microlenses and a carrier media layer carrying a microlens system. Each of the microlenses is coated with a light transmissive material to expand the microlens profile to cover the gap between the microlenses, and the surface of the partially transparent material is covered with a light absorbing layer to reduce glare. The arrangement of the microlenses can be more irregularly arranged to reduce the effects of light drying. [Embodiment] The direction of the present invention discussed herein is a composite structure of cake light. In order to thoroughly understand the present invention, detailed steps and compositions of the published bribes will be provided. It is apparent that the present invention is not limited to the specifics, and the various components or steps that are well known to those skilled in the art are not described in the details to avoid unnecessary limitations of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described in detail below, and the present invention is generally practiced in other embodiments, and the scope of the present invention is not limited. Eight 7 1300502 micro-lens arrays have gaps in the arrangement, which is due to the difficulty of the process, so that the ray of the person in the _ part is utilized. The invention re-coats the layer-transparent b in the micro (four)_ to increase the appearance of the microlens to expand the interval, thereby improving the lighting efficacy. One embodiment of the present invention is a light directing composite structure that does not include a microlens system 22 and at least a carrier media layer 24 that carries a microlens system. The microlens system 22 includes a plurality of microlenses 222, each of which is comprised of a first layer 2221 and a second layer 2222. In the embodiment, the layer 2221 and the second layer ushered in to indicate that the micromirror is a plurality of layers, and is not intended to limit the specific embodiment. In addition, the refractive indices of the layers may be all _, all different or partially identical. The towel microlens system 22 is disposed on the carrier medium layer 24, and the microlens system has a predetermined physical property and a path on the wire to provide a light field to the microlens system. 22 and the carrier medium layer 24 form a light diffusing screen having light guiding properties. The second layer 2222 of the outermost layer may be formed of a Durable material, which can be used to reduce the damage caused by abrasion. In addition, the first refractive index may be the same or different from the second refractive index, and the first refractive index may be 8 1300502 is smaller than the second refractive index or greater than the second refractive index to provide different physical properties and optical characteristics. The rational value of the towel upper body includes the reflection slit, radius, size, dot pitch, shape, optical axis tendency and symmetry. For example, as shown in the third figure, when the first refractive index may be smaller than the second refractive index, when the light is incident on the first layer 2221, part of the incident light 28 is refracted by two total reflections, so that it is incident on the micro. The incident light 28 _ around the lens 222 and the entrance pupil are controlled to be concentrated toward the center of the microlens 222.
上述之承載媒體24可以為透明或非透明，另外，微鏡片 222中更可包含一個或多個散光體，散光體可以是等向散光體 (isotmpic light disperser)或非等向散光體(an七咖pie light disperser)，例如散光粒子(iight diffilsing partides)或大的散光體 (bulk diffiiser^此外，微鏡片系統22可以是規律性排列或非 規律性排列之一陣列，並且微鏡片222配置於該承載媒體層之 底部圖樣可以是一種或複數種幾何圖形所組成。如此，可避免 因為微鏡片222的排列太過整齊，使得觀眾因光的干射現象察 覺部份區域顯得特別亮，而部份區域顯得特別暗。例如各微鏡 片222之底部係選自下列群組之一：三角形、矩形、多邊形、 圓形、橢圓形、扇形或其他任意之幾何圖形。再者，微鏡片系 統22可以是平凸微透鏡系統、平凹微透鏡系統、凸凸微鏡片 系統、凸凹微鏡片系統或凹凹微鏡片系統，本發明對微鏡片系 9 1300502 統22中微鏡片222的組成並不加以限制。 此外，微鏡片222的表面可以是部份或全部為散光表面。 另外微鏡片的表面更可以區分為一第一表面2226與一第二表 面2228，第二表面2228係於介於第一表面2226與承載媒體 層24之間。在第二表面2228上更可以塗佈一光反射層來全反 射光線’如此在第一折射率可以是小於第二折射率時，將入射 在微透鏡222週圍部份的入射光282之照射入控制向微透鏡 222中心來集中擴散，來強化光照射效能。如此，上述之間隙 部份的入射光便可以被充分利用。 另外，上述之第二表面更可以塗佈一光吸收層，使得照 射進來的外部光線之反射減少，加強抗炫光的效果，其中光吸 收層係塗佈在光反射層被之上。再者，可以是以一遮蔽層覆蓋 30在上述之間隙部份，所覆蓋的範圍包含各微鏡片222之第 一表面。此遮蔽層可以是不透明或為光反射層，在遮蔽層的上 方更可以覆蓋一光吸收層32來降低炫光，如第四圖所示。 本發明之各實施例之導光複合結構可應用在聚光或擴散 光方面，以用來搭配其他的改變光路徑的結構，藉此達到其他 1300502 光路徑的結構所能產生的效果或增強光的照射效能。例如本發 明之導光複合結構可應用於或被包含於背投影(rear projection) 顯示裝置(如被投影電視)或前投影(front projector)顯示裝置(如 前投影機或電視)之導光效果方面。此外，本發明所應用之微 透鏡陣列不僅可以是微透鏡間具有間隙的微透鏡陣列，亦可以 是微透鏡間無間隙(無接縫)的微透鏡陣列。 顯然地，依照上面實施例中的描述，本發明可能有許多 的修正與差異。g此需要在其附加_利要求項之範圍内加以 理解，除了上述詳_描料，本發㈣可以敍地在其他的 實施例巾施4。上賴為本發明之較佳實施_ G，並非用以 限疋本發明之巾請專概圍；凡其它未脫離本發日綺揭示之精 神下所儿成的等效改變或修飾，均應包含在下述中請專利 内0 叫 1300502 【圖式簡單說明】 第一圖係為先前技術之剖面示意圖；以及 第二圖至第四圖係本發明之一具體實施例之剖面示意圖。 【主要元件符號說明】 22 微鏡片系統 222 微鏡片 2221 第一層 2222第二層 2226第一表面 2228第二表面 24 承載媒體層 28 入射光 282 部份的入射光 30 遮蔽層 32 光吸收層 12The carrier medium 24 may be transparent or non-transparent. In addition, the microlens 222 may further include one or more astigmatisms, and the astigmatism may be an isotmpic light disperser or an anisotropic astigmatism (an seven a pie light disperser, such as a iight diffilsing partides or a bulk diffiiser. In addition, the microlens system 22 may be an array of regular or irregular arrangements, and the microlenses 222 are disposed therein. The bottom pattern of the carrier media layer may be composed of one or a plurality of geometric figures. Thus, it may be avoided that the arrangement of the microlenses 222 is too neat, so that the viewer perceives part of the area to be particularly bright due to the phenomenon of light drying. The area appears to be particularly dark. For example, the bottom of each microlens 222 is selected from one of the following groups: a triangle, a rectangle, a polygon, a circle, an ellipse, a sector, or any other geometric shape. Further, the microlens system 22 can be Plano-convex microlens system, plano-concave microlens system, convex-convex microlens system, convex-concave micro-lens system or concave-concave micro-lens system, the present invention The composition of the microlens 222 in the lens system 9 1300502 is not limited. In addition, the surface of the microlens 222 may be partially or completely astigmatic. The surface of the microlens may be further divided into a first surface 2226 and a The second surface 2228, the second surface 2228 is interposed between the first surface 2226 and the carrier medium layer 24. On the second surface 2228, a light reflecting layer may be coated to totally reflect the light 'so at the first refractive index When the refractive index is smaller than the second refractive index, the incident light 282 incident on the portion around the microlens 222 is controlled to be concentrated toward the center of the microlens 222 to enhance the light irradiation efficiency. Thus, the incident portion is incident. The light can be fully utilized. In addition, the second surface can be coated with a light absorbing layer, so that the reflection of the external light irradiated is reduced, and the anti-glare effect is enhanced, wherein the light absorbing layer is coated on the light reflection. The layer may be overlaid. Further, the mask may be covered by a masking layer 30 in the gap portion, and the covered area includes the first surface of each microlens 222. The masking layer may be impervious. Or a light reflecting layer, a light absorbing layer 32 may be covered over the shielding layer to reduce glare, as shown in the fourth figure. The light guiding composite structure of each embodiment of the present invention can be applied to condensed or diffused light. Aspect, in combination with other structures that change the light path, thereby achieving the effect of the structure of other 1300502 light paths or enhancing the illumination performance of the light. For example, the light guiding composite structure of the present invention can be applied to or included in Rear projection A light guiding effect of a display device (such as a projected television) or a front projector (such as a front projector or television). Further, the microlens array to which the present invention is applied may be not only a microlens array having a gap between the microlenses but also a microlens array having no gaps (without seams) between the microlenses. Obviously, many modifications and differences may be made to the invention in light of the above description. g This need to be understood within the scope of its additional requirements, in addition to the above detailed description, the fourth (4) can be described in other embodiments. The preferred embodiment of the present invention is not intended to limit the scope of the present invention; any other equivalent changes or modifications that are not derived from the spirit of the present disclosure Included in the following patent is 1300502 [Simplified illustration of the drawings] The first figure is a schematic cross-sectional view of the prior art; and the second to fourth figures are schematic cross-sectional views of one embodiment of the present invention. [Main component symbol description] 22 Microlens system 222 Microlens 2221 First layer 2222 Second layer 2226 First surface 2228 Second surface 24 Carrier medium layer 28 Incident light 282 Part of incident light 30 Masking layer 32 Light absorbing layer 12