200909973 --------- 19375twf.doc/p 九、發明說明： 【發明所屬之技術領域】 本發明疋有關於—種顯示裝置關於一種 投影裝置。 【先前技術】 近年來體積龐大且笨重的陰極射像管(cath〇de ray tube, CRT)投影機’已逐漸被液晶投影機及數位光源處理 f (dlg- hght processing，DLp)投影機等產品所取代。這些產 品具有輕薄且可攜性高的特性，並可直接與數位產品連結 以將，像投影顯示出來。在各家龜商不斷地推出便宜且具 有观爭}·生的產並增力口產A附力口功能的情況下，這些產 品除了使用於公司、學校及其他公眾場所外，甚至已經有 逐漸擴展至一般家庭的趨勢。 一般而言’為了提高投影機在價格上的競爭力，市面 上的投〜機大多疋採用單片光閥(light valve)的設計，而此 , 齡構的投影機通常需㈣-循序性濾光元件(如色輪）， 將白光依序分成紅光、藍光與綠光。請參照圖1A與圖1B， 其分別繪示習知一種採用單片反射式光閥之投影裝置的示 意圖’以及圖1A中色輪的示意圖。習知投影裝置1〇〇中， 光源110所&供的白光112通過準直光學件(c〇iiimati〇n optics)115後，會被反射鏡12〇反射至色輪丨。色輪 包括紅色濾光片132、綠色濾光片134與藍色濾光片136, 而隨著色輪130的轉動，可將白光112依序過濾成紅光、 綠光與藍光。接著，反射式光閥140則配合紅光、綠光與 200909973 19375twf.doc/p 藍光產生的時間而呈現出不同的狀態，進而將被二向色鏡 (didi⑺ic mirror)135反射的紅光、綠光與藍光分別轉換成 紅色影像光、綠色影像光與藍色影像光。之後，投影鏡頭 150會將紅色、綠色與藍色影像光投影於螢幕上，以於螢 幕上形成一全彩影像。 然而，由於反射式光閥14〇是配合紅光、綠光與藍光 產生的時間而呈埤不同的狀態，在配合上難免會有些許誤 差。舉例來說，随著色輪130的轉動，當白光Π2通過色 輪130後的顏色由紅色轉變成綠色時，反射式光閥14〇應 立即切換狀態，但實際上反射式光閥14〇切換狀態的時間 可能會提早或延後，因而導致所謂的虹光效應(rainb〇w effect)，影響顯示品質。此外，由於同一時間僅有一種顏 色的影像光投射在螢幕上，所以光利用效率較差，導致影 像的亮度偏低。另外，色輪130為動件’其在可靠度方面 較固定件差，所以較容易發生故障。 圖2是習知一種投影裝置的照明系統與光閥的示意 圖。請參照圖2，光源200所提供的白光202通過準直光 學件(collimation optics)204後會形成一準直白光2〇6。接 著’濾光器302將準直白光206過濾成三個空間分離 (spatially separated)且帶寬(bandwidth)不同的紅光 304R、 綠光304G與藍光304B。可轉換的光學系統(switchable200909973 --------- 19375 twf.doc/p IX. Description of the Invention: [Technical Field] The present invention relates to a display device relating to a projection device. [Prior Art] In recent years, bulky and cumbersome cathode cathode ray tube (CRT) projectors have been gradually processed by liquid crystal projectors and digital light sources (dlg-hght processing, DLp) projectors and other products. Replaced. These products are lightweight and highly portable, and can be directly connected to digital products to display them like projections. In addition to the fact that each turtle company has continuously introduced cheap and competitive products and enhanced the function of mouth-to-mouth A, these products have been gradually used in addition to companies, schools and other public places. Expand to the trend of the general family. Generally speaking, in order to improve the competitiveness of the projector in terms of price, most of the projectors on the market use a single-piece light valve design. However, the projectors of the age-contained structure usually require (four)-sequential filtering. Optical components (such as color wheels) divide white light into red, blue, and green light. Referring to FIG. 1A and FIG. 1B, respectively, a schematic view of a conventional projection apparatus using a single-piece reflective light valve and a schematic diagram of the color wheel of FIG. 1A are shown. In the conventional projection device 1 , the white light 112 supplied by the light source 110 is reflected by the mirror 12 至 to the color wheel 通过 after passing through the collimating optics 115 . The color wheel includes a red color filter 132, a green color filter 134 and a blue color filter 136, and as the color wheel 130 rotates, the white light 112 can be sequentially filtered into red light, green light and blue light. Then, the reflective light valve 140 exhibits different states in combination with the time of red light, green light and 200909973 19375 twf.doc/p blue light, and then the red light and green reflected by the didi (7) ic mirror 135. Light and blue light are converted into red image light, green image light, and blue image light, respectively. Projection lens 150 then projects red, green, and blue image light onto the screen to form a full-color image on the screen. However, since the reflective light valve 14 is in a different state from the time when the red light, the green light, and the blue light are generated, it is inevitable that there is a slight error in the cooperation. For example, as the color wheel 130 rotates, when the color of the white light bulb 2 passes through the color wheel 130 changes from red to green, the reflective light valve 14 should switch state immediately, but in fact, the reflective light valve 14 switches state. The time may be early or delayed, resulting in the so-called rainbow effect, which affects the display quality. In addition, since only one color of image light is projected on the screen at the same time, the light utilization efficiency is poor, resulting in low brightness of the image. Further, the color wheel 130 is a moving member' which is inferior in reliability to the fixing member, so that it is more likely to malfunction. 2 is a schematic view of a lighting system and a light valve of a conventional projection device. Referring to FIG. 2, the white light 202 provided by the light source 200 passes through a collimation optics 204 to form a collimated white light 2〇6. Next, the filter 302 filters the collimated white light 206 into three spatially separated red light 304R, green light 304G and blue light 304B having different bandwidths. Convertible optical system (switchable
optics system)308用於使紅光304R、綠光304G與藍光304B 分別聚焦於光閥212的顯示表面214A、214B、214C上。 更詳細地說’光閥212的顯示表面可區分為三個區塊 1 19375twf.doc/p 200909973 (即顯示表面214A、214B、214C)，而可轉換的光學系統 308可作二階段的循環(three-stage cycle)切換。當切換至第 一階段時，可轉換的光學系統3〇8可使紅光304r、綠光 304G與藍光304B分別投射於顯示表面214C、顯示表面 214A與顯示表面214B上；當切換至第二階段時，可轉換 的光學系統308可使紅光304R、綠光304G與藍光304B 分別投射於顯示表面214A、顯示表面214B與顯示表面 214C上；當切換至第三階段時，可轉換的光學系統3〇8 可使紅光304R、綠光304G與藍光304B分別投射於顯示 表面214B、顯示表面214C與顯示表面214A上。 上述架構中，由於在同一時間同時有三種顏色的光投 射，光閥212上，所以可提高光利用效率。然而，由於上 f架構之作動機制較為複雜，因此生產成本較高。而且， :轉換的光學系統观為動件，其在可靠度方面較固定件 差’所以較容易發生故障。 【發明内容】 本發明之目的是提供一種投影裝置，以改善虹光效 應’並提高顯示品質。 " 以增加產品 本發明之另一目的是提供—種投影裝置， 可靠度。 為達上述或是其他目的’本發明提出—種投影裝置， 系統、一反射式光閥、一投影鏡頭以及-彩 明:击。其中，照明系統具有一光源，用以提供一昭 九束，而反射式摘配置於_光束的_路徑上/此 1 19375twf.doc/p 200909973 反射式光閥具有呈陣列排列的多個畫素，以將照明光束轉 ^成像光束’而投影鏡頭麻置於影像光束的傳遞路 徑上。彩色濾光元件是配置於光源與反射式光閥之間，且 位於照明光束的傳遞路徑上。此外’彩色滤光树包括— 透明基板以及配置於透明基板之一第—表面上的—彩色濾 光陣列。此彩色濾光陣列包括多個濾光圖案，且各濾光g 案分別對應上述晝素其中之一。 在本發明一實施例中，上述之濾光圖案包括多個第— 色渡光圖案、多個第二色濾光圖案以及多個第三色濾光 案。 一 在本發明一實施例中，上述之彩色濾光元件更包括一 抗^射層，配置於透明基板之一第二表面上，且第二表面 與第一表面相對。 在本發明一實施例中，上述之濾光圖案的材料為無機 材料(inorganic material)。 在本發明一實施例中，上述之濾光圖案是由二向色膜 (dichmic fllm)堆疊而成或是由色素材料(pigment爪的⑷吣 形成。 在本發明一實施例中，上述之各濾光圖案與各晝素的 形狀為相似形。 在本發明一實施例中，上述之照明系統更具有一聚光 元件，配置於彩色濾光元件與反射式光閥之間。此聚光元 件適於將通過彩色濾光元件之各濾光圖案的光聚焦於對應 之晝素上。 1 19375twf.doc/p 200909973 在本發明一實施例中，上述之投影裝置更包括一分光 元件’配置於彩色濾光元件、反射式光閥與投影鏡頭之間。 在本發明一實施例中，上述之反射式光閥包括數位微 鏡裝置(digital micro-mirror device，DMD)或單晶石夕液晶顯 示面板(liquid crystal on Silic0n panel，LC〇s pand) 〇 本發明另提出一種投影裝置，其包括一照明系統、一 反射式光閥、一投影鏡頭以及一彩色濾光元件。其中，照 明系統具有-細，肋提供U光束。反射式光闕是 配置於照明光束的傳遞路徑上，此反射式糾具有呈陣列 排列的多個晝素’以將照縣束轉換成―影像光束。投影 鏡頭是配置於雜料⑽翁徑上，而彩Μ光元件配 置=反射式光财投影鏡社間，且位於影像光束的傳遞 路徑上。此彩色濾光元件包括一透明基板以及配置於透明 第—表面上的—彩色濾光陣列。此彩色濾、光陣列 υ括夕個瀘、光®案’且各濾錢案分卿應上述晝素其+ 之 一、〇 ’、 案。 在本發明-實關中，上述之濾絲案包括多個第一 匕慮光圖案、多個第二色濾光圖案以及多個第三色渡光圖 2發明—實施例中’上述之彩色遽光元件更包括一 抗反射層，配置於透明基板之一第二 與第一表面相對。 且弟一表面 材料 在本發明-實施财，上述之濾、光_的材料為無機 1 19375twf.doc/p 200909973 在本發明一實施例中，上述之濾光圖案是由二向色膜 堆疊而成或是由色素材料形成。 在本發明一實;例中，上述之反射式光閥包括數位微 鏡裝置或單晶石夕液晶顯示面板。 本發明之彩色濾光元件可在同一時間内將白光過濾 成多種不同顏色的光，且這些光是同時投射在對應的晝素 上，所以可有效改善虹光效應，並增加光利用效率。此外， p 由於彩色濾光元件是固定件，所以產品可靠度較高。 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 【實施方式】 圖3是本發明一實施例之投影裝置的示意圖，圖4A 是圖3之反射式光閥的局部上視圖，而圖4B是圖3之彩 色慮光元件的局部上視圖。請參照圖3、圖4A與圖4B， ; 本實施例之400投影裝置包括一照明系統410、一反射式 I 光閥420、一投影鏡頭430以及一彩色濾光元件44〇。其中， 照明系統410具有一光源412，用以提供一照明光束413， 而反射式光閥420配置於照明光束413的傳遞路徑上。此 反射式光閥420具有呈陣列排列的多個晝素422，以將照 明光束413轉換成一影像光束413,，而投影鏡頭430則配 置於影像光束413,的傳遞路徑上。彩色濾光元件44〇是配 置於光源412與反射式光閥420之間，且位於照明光束‘Η 的傳遞路徑上。此外，彩色濾光元件44〇包括一透明基板 200909973 19375twf.doc/p 442以及配置於透明基板442之一第一表面442a上的一彩 色濾光陣列444。此彩色濾光陣列444包括多個濾光圖^ 445 ’且各濾光圖案445分別對應上述晝素422其中之 更詳細地說，濾光圖案445與晝素422的數量相同，且每 個濾光圖案445是對應到不同的晝素422，而通過各濾光 圖案445的光會投射到與此濾光圖案445相對應的^素 422。 上述之投影裝置400中，透明基板442例如是玻璃其 板。濾光圖案445可具有多種顏色’而在本實施例中是二 三種顏色為例，即第-色渡光圖案R、第二色濾光圖案g 以及第二色濾、光圖案B。其中，第—色濾光圖案的顏色例 如是紅色，第二色濾光圖案G的顏色例如是綠色，而第三 色濾光圖案B的顏色例如是藍色。需注意的是，圖々Η中 所繪示的不同顏色濾光圖案的排列方式僅為舉例之用， 發，並不對其作限定。此外，濾光圖案445可由二向 堆疊而成’或是由色素材料形成。另外，為了使濾素 445較不容易劣化，濾光圖案445的材料可選用無機材曰料: 承上述，照明系統41〇例如更具有多種光學元二 圖3中所繪示的準直光學件414及反射鏡416等。孰朵 項技藝者當知照日縣統410内尚可包括其他相_ = 件，在此將不對其作介紹。 予兀 在本實施射’光源412所提供的照明光束4 準直光學件414後會變成—準直的照明光束，而 = 會將照明光束4Π反射至彩色濾統件。接著， 11 1 19375twf.doc/pThe optics system 308 is used to focus the red light 304R, the green light 304G, and the blue light 304B on the display surfaces 214A, 214B, 214C of the light valve 212, respectively. In more detail, the display surface of the light valve 212 can be divided into three blocks 1 19375 twf.doc/p 200909973 (i.e., display surfaces 214A, 214B, 214C), and the convertible optical system 308 can be used as a two-stage cycle ( Three-stage cycle) switching. When switching to the first stage, the switchable optical system 3〇8 can cause the red light 304r, the green light 304G and the blue light 304B to be respectively projected on the display surface 214C, the display surface 214A and the display surface 214B; when switching to the second stage The convertible optical system 308 can project the red light 304R, the green light 304G and the blue light 304B on the display surface 214A, the display surface 214B and the display surface 214C, respectively; when switching to the third stage, the switchable optical system 3 〇8 allows red light 304R, green light 304G, and blue light 304B to be projected onto display surface 214B, display surface 214C, and display surface 214A, respectively. In the above architecture, since light of three colors is simultaneously emitted on the light valve 212 at the same time, the light use efficiency can be improved. However, due to the complicated mechanism of the operation of the upper f architecture, the production cost is high. Moreover, the converted optical system is viewed as a moving member, which is inferior in reliability to the fixed member, so that it is more prone to malfunction. SUMMARY OF THE INVENTION It is an object of the present invention to provide a projection apparatus for improving the rainbow light effect and improving display quality. " To add products Another object of the present invention is to provide a projection apparatus with reliability. For the above or other purposes, the present invention proposes a projection apparatus, a system, a reflective light valve, a projection lens, and a color-finished shot. Wherein, the illumination system has a light source for providing a nine-beam, and the reflective extraction is disposed on the _ path of the _beam/1 19375 twf.doc/p 200909973. The reflective light valve has a plurality of pixels arranged in an array. In order to turn the illumination beam into an imaging beam' and the projection lens is placed on the transmission path of the image beam. The color filter element is disposed between the light source and the reflective light valve and is located on the transmission path of the illumination beam. Further, the color filter tree includes a transparent substrate and a color filter array disposed on a first surface of the transparent substrate. The color filter array includes a plurality of filter patterns, and each filter g corresponds to one of the above-mentioned pixels. In an embodiment of the invention, the filter pattern includes a plurality of first color ray crossing patterns, a plurality of second color filter patterns, and a plurality of third color filters. In an embodiment of the invention, the color filter component further includes an anti-reflection layer disposed on a second surface of the transparent substrate, and the second surface is opposite to the first surface. In an embodiment of the invention, the material of the filter pattern is an inorganic material. In an embodiment of the invention, the filter pattern is formed by stacking a dichmic flm or by a pigment material ((4) p of a pigment claw. In an embodiment of the invention, each of the above The filter pattern and the shape of each element are similar. In an embodiment of the invention, the illumination system further has a concentrating element disposed between the color filter element and the reflective light valve. The light passing through each of the filter patterns of the color filter element is adapted to be focused on the corresponding pixel. 1 19375 twf.doc/p 200909973 In an embodiment of the invention, the projection device further includes a light splitting element The color filter element, the reflective light valve and the projection lens. In an embodiment of the invention, the reflective light valve comprises a digital micro-mirror device (DMD) or a single crystal liquid crystal display. The present invention further provides a projection apparatus including an illumination system, a reflective light valve, a projection lens, and a color filter element. The illuminating system has a thin rib that provides a U beam. The reflective diaphragm is disposed on a transmission path of the illumination beam, and the reflective entanglement has a plurality of elements arranged in an array to convert the ray beam into an image beam. The projection lens is disposed on the magnetic material (10), and the color light-emitting component is disposed between the reflective light-emitting mirrors and located on the transmission path of the image beam. The color filter component includes a transparent substrate and is disposed in the transparent On the first surface - the color filter array. This color filter, the light array includes the 夕 泸 泸, 光 光 ® case and each of the money filtering cases should be one of the above, one of the +, 〇', the case. In the invention, the filter case includes a plurality of first light-receiving patterns, a plurality of second color filter patterns, and a plurality of third-color light-emitting patterns. The invention-in the embodiment, the color light-emitting element described above Further comprising an anti-reflection layer disposed on one of the transparent substrates opposite to the first surface. And the surface material of the invention is implemented in the present invention, and the material of the filter and the light is inorganic 1 19375 twf.doc/p 200909973 In an embodiment of the invention, the above The filter pattern is formed by stacking a dichroic film or a pigment material. In the present invention, the reflective light valve includes a digital micromirror device or a single crystal solar panel. The color filter element of the invention can filter white light into a plurality of different colors of light at the same time, and the light is simultaneously projected on the corresponding halogen, so that the rainbow light effect can be effectively improved and the light utilization efficiency is increased. The above-mentioned and other objects, features and advantages of the present invention will become more apparent from the <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; , as detailed below. 3 is a schematic view of a projection apparatus according to an embodiment of the present invention, FIG. 4A is a partial top view of the reflective light valve of FIG. 3, and FIG. 4B is a partial top view of the color light-receiving element of FIG. Referring to FIG. 3, FIG. 4A and FIG. 4B, the 400 projection apparatus of this embodiment includes an illumination system 410, a reflective I-light valve 420, a projection lens 430, and a color filter element 44A. The illumination system 410 has a light source 412 for providing an illumination beam 413, and the reflective light valve 420 is disposed on the transmission path of the illumination beam 413. The reflective light valve 420 has a plurality of halogen elements 422 arranged in an array to convert the illumination light beam 413 into an image light beam 413, and the projection lens 430 is disposed in the transmission path of the image light beam 413. The color filter element 44 is disposed between the light source 412 and the reflective light valve 420 and is located on the transmission path of the illumination beam 'Η. In addition, the color filter element 44 includes a transparent substrate 200909973 19375 twf.doc/p 442 and a color filter array 444 disposed on one of the first surfaces 442a of the transparent substrate 442. The color filter array 444 includes a plurality of filter patterns 445 ′ and each of the filter patterns 445 respectively correspond to the above-described halogen 422. In more detail, the filter pattern 445 has the same number as the halogen 422, and each filter The light pattern 445 corresponds to a different halogen 422, and the light passing through each of the filter patterns 445 is projected to the corresponding color 422 corresponding to the filter pattern 445. In the above projection apparatus 400, the transparent substrate 442 is, for example, a glass plate. The filter pattern 445 may have a plurality of colors', and in the present embodiment, two or three colors are exemplified, that is, the first-color light-passing pattern R, the second color filter pattern g, and the second color filter and the light pattern B. The color of the first color filter pattern is, for example, red, the color of the second color filter pattern G is, for example, green, and the color of the third color filter pattern B is, for example, blue. It should be noted that the arrangement of the different color filter patterns illustrated in the figure is for example only, and is not limited. Further, the filter pattern 445 may be stacked in two directions or formed of a pigment material. In addition, in order to make the filter 445 less susceptible to deterioration, the material of the filter pattern 445 may be selected from an inorganic material: According to the above, the illumination system 41, for example, has a plurality of optical elements, and the collimating optics illustrated in FIG. 414 and mirror 416, and the like.孰 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 In the present embodiment, the illumination beam 4 provided by the light source 412 will collimate the optics 414 to become a collimated illumination beam, and = will reflect the illumination beam 4Π to the color filter element. Then, 11 1 19375twf.doc/p
200909973 ，光元件_的渡光圖案秘會將照明光束仍過 光、綠光與藍光，而通過濾光圖案二 ^圖案-相對應之畫㈣上。這』== 机‘.，、頁不出崎像_將投射於其上的光轉 料相對應㈣像光束413，並將其反射至投影鏡頭43ζ^ 投影鏡頭430則會將影像光束413,投影於一營幕上， 螢幕上形成影像。 、 承上述，在本實施例中例如是藉由配置於彩色濾光元 件440、反射式光閥420與投影鏡頭43〇之間的_分光元 件450 ’將通過彩色遽光元件44〇後的光反射至反射式光 閥420。此分光元件45〇可為二向色鏡或是内部全反射棱 鏡(total internal reflection prism, TIR prism)。此外，反射式 光閥420可為數位微鏡裝置或單晶矽液晶顯示面板。 本發明一實施例中，為了避免照明光束413入射彩色 濾光兀件440之透明基板442時產生反射的現象，可在透 明基板442相對於第一表面442a之一第二表面442b上設 置一抗反射(antireflection，AR)層（未繪示）。其中，抗反射 層的材貝包括氮化鈦（titanium nitride)、氮化發（siiicon oxide)、氮氧化矽(smcon oxynitride)、富矽氮化物（smc〇n rich nitride)。 值得一提的是，為了使彩色濾光元件440之各濾光圖 案445的製作更為容易，可將各濾光圖案445的尺寸作大， 亦即彩色濾光元件440之各濾光圖案445可大於反射式光 閥420之各晝素422的尺寸。在此情況下，需藉由配置於 12 1 19375twf.doc/p 200909973 彩色濾光元件與反射式光閥樣之間的一聚光元件(未 繪不)將通過彩色滤光元件44〇之各遽光圖案445的光聚隹 於對應之晝素422上。 … 由於本實施例之彩色漉光元件440可在同一時間内將 光源412所提供的白光過濾成紅光、藍光與綠光，且這些 不同顏色的光是同時投射在對應的晝素422上，所以除了 可有效改善採用循序性濾光元件之習知技術容易產生的虹 光效應外，還可增加光利用效率，以提高投射於螢幕上的 影像壳度及對比。此外，由於彩色濾光元件44〇是固定件， 相較於習知技術中所使用的濾光元件為動件，本實施例之 彩色;慮光元件440的可靠度較佳。而且，由於本實施例之 才又影裝置400的結構較為簡單，所以可降低生產成本。 圖5是本發明另一實施例之投影裝置的示意圖。由於 圖5與圖3相似，所以在圖5與圖3中相同的標號代表相 同的元件。請參照圖5，本實施例之投影裝置400,包括一 照明系統410、一反射式光閥420、一投影鏡頭430以及一 彩色濾光元件440。其中，照明系統410具有一光源412， 用以提供一照明光束413。反射式光閥420是配置於照明 光束413的傳遞路徑上，此反射式光閥420具有呈陣列排 列的多個畫素422(如圖4A所示）’以將照明光束413轉換 成一影像光束413,。投影鏡頭430是配置於影像光束413, 的傳遞路徑上，而彩色渡光元件440則是配置於反射式光 閥420與投影鏡頭430之間，且位於影像光束413,的傳遞 路徑上。此彩色濾光元件440包括一透明基板442以及配 13 1 19375twf.doc/p 200909973 置於透明基板442之一第一表面442a上的一彩色濾光陣列 444。此彩色濾光陣列444包括多個濾光圖案445(如圖4B 所示）’且各濾光圖案445分別對應上述晝素422其中之 一。更詳細地說，濾光圖案445與晝素422的數量相同， 且每個濾光圖案445是對應到不同的畫素422，而被各晝 素422所反射的光會投射到輿此晝素422相對應的濾光圖 案 445。 Γ200909973, the light element of the light element _ will be the illumination beam still passing through the light, green light and blue light, and through the filter pattern two ^ pattern - corresponding painting (four). This 』== machine '., the page does not show the image _ the corresponding light ray to be projected on it (four) image beam 413, and reflect it to the projection lens 43 ζ ^ projection lens 430 will project the image beam 413, projection On the screen of a camp, an image is formed on the screen. In the present embodiment, for example, the light that has passed through the color light-emitting element 44 is disposed by the _light splitting element 450' disposed between the color filter element 440, the reflective light valve 420, and the projection lens 43A. Reflected to the reflective light valve 420. The beam splitting element 45A can be a dichroic mirror or a total internal reflection prism (TIR prism). Further, the reflective light valve 420 may be a digital micromirror device or a single crystal germanium liquid crystal display panel. In an embodiment of the present invention, in order to prevent the illumination beam 413 from being incident on the transparent substrate 442 of the color filter element 440, a primary antibody may be disposed on the second surface 442b of the transparent substrate 442 relative to the first surface 442a. An antireflection (AR) layer (not shown). Among them, the material of the anti-reflection layer includes titanium nitride, siiicon oxide, smcon oxynitride, and smc〇n rich nitride. It is worth mentioning that in order to make the filter pattern 445 of the color filter element 440 easier to manufacture, the size of each filter pattern 445 can be made larger, that is, each filter pattern 445 of the color filter element 440. It may be larger than the size of each of the halogen 422 of the reflective light valve 420. In this case, it is necessary to pass through the color filter element 44 by a concentrating element (not shown) disposed between the color filter element and the reflective light valve sample of 12 1 19375 twf.doc/p 200909973. The light of the calender pattern 445 is concentrated on the corresponding halogen 422. Since the color light-emitting element 440 of the embodiment can filter the white light provided by the light source 412 into red light, blue light, and green light at the same time, and the light of the different colors is simultaneously projected on the corresponding pixel 422, Therefore, in addition to effectively improving the rainbow effect that is easily generated by conventional techniques using sequential filter elements, the light utilization efficiency can be increased to improve the image shelling and contrast projected on the screen. Further, since the color filter element 44 is a fixing member, the color of the present embodiment is better than that of the filter element used in the prior art. Moreover, since the structure of the shadow removing device 400 of the present embodiment is relatively simple, the production cost can be reduced. Figure 5 is a schematic illustration of a projection apparatus in accordance with another embodiment of the present invention. Since Fig. 5 is similar to Fig. 3, the same reference numerals in Fig. 5 and Fig. 3 denote the same elements. Referring to FIG. 5, the projection apparatus 400 of the present embodiment includes an illumination system 410, a reflective light valve 420, a projection lens 430, and a color filter element 440. The illumination system 410 has a light source 412 for providing an illumination beam 413. The reflective light valve 420 is disposed on a transmission path of the illumination beam 413. The reflective light valve 420 has a plurality of pixels 422 (shown in FIG. 4A) arranged in an array to convert the illumination beam 413 into an image beam 413. ,. The projection lens 430 is disposed on the transmission path of the image light beam 413, and the color light-emitting element 440 is disposed between the reflective light valve 420 and the projection lens 430 and located on the transmission path of the image light beam 413. The color filter element 440 includes a transparent substrate 442 and a color filter array 444 disposed on a first surface 442a of the transparent substrate 442. The color filter array 444 includes a plurality of filter patterns 445 (shown in FIG. 4B) and each filter pattern 445 corresponds to one of the above-described halogen elements 422, respectively. In more detail, the filter pattern 445 is the same as the number of the halogen elements 422, and each of the filter patterns 445 corresponds to a different pixel 422, and the light reflected by each of the pixels 422 is projected to the pixel. 422 corresponds to the filter pattern 445. Γ
本實施例之投影裝置400,與圖3所繪示之投影裝置 400的最大差別在於投影裝置400,的彩色濾光元件44〇是 配置於反射式光閥420與投影鏡頭430之間。換言之，在 本實施例中是先藉由反射式光閥420將照明光束413轉換 成影像光束413後，再藉由彩色濾光元件440將影像光束 413’調製成所需的顏色，以使投射於螢幕上的影像之顏色 與預期相符。 ^ 關於本實施例之投影裝置400,的優點、濾光圖案445 的顏色、材料、形成方式以及各元件的詳細說明與上述實 施例相似，在此將不再重述。 貝 綜上所述，本發明之投影裝置至少具有下列優點： 1 ·本發明之彩色濾光元件可在同一時間内將白光過濾 成多種不同顏色的光，且這些光是同時投射在對應的蚩= 上，所以可有效改善虹光效應，並增加光利用效率，'以提 高投射於螢幕上之影像亮度及對比。 2.由於彩色濾光元件是固定件，而習知技術中所使用 濾光元件為動件，因此本發明之彩色濾光元件的具有較俨 14 l 19375twf.doc/p 200909973 的可靠度。 a雖然本發明已以較佳實施例揭露如上，然其並非用以 限定本發明，任何熟習此技藝者，在不脫離本發明之精神 和範圍内，當可作些許之更動與潤飾，因此本發明之^^ 範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1A是習知一種採用單片反射式光閥之投影裝置 示意圖。 & 、 圖1B是圖1A中色輪的示意圖。 圖2是習知一種投影裝置的照明系統與光閥的示意 圖。 圖3是本發明一實施例之投影裝置的示意圖。 圖4A是圖3之反射式光閥的局部上視圖。 圖4B是圖3之彩色滤光元件的局部上視圖。 圖5是本發明另一實施例之投影裝置的示意圖。 【主要元件符號說明】 100、400、400’ ：投影裝置 110、200、412 :光源 112、202 :白光 115、204、414 :準直光學件 120、416 :反射鏡 130 :色輪 132 :紅色濾光片 134 .綠色慮光片 135 :二向色鏡 15 1 19375twf.doc/p 200909973 136 :藍色濾光片 140、420 :反射式光閥 150、430 :投影鏡頭 206 :準直白光 212 :光閥 214A、214B、214C :顯示表面 302 :濾光器 304R :紅光 304G :綠光 304B :藍光 308 :可轉換的光學系統 410 :照明系統 413 :照明光束 413’ ：影像光束 422 :晝素 440 :彩色濾光元件 442 :透明基板 442a :第一表面 442b :第二表面 444 :彩色濾光陣列 445 ·滤光圖案 450 :分光元件 R :第一色濾光圖案 G:第二色濾光圖案 B:第三色濾光圖案 16The maximum difference between the projection device 400 of the present embodiment and the projection device 400 illustrated in FIG. 3 is that the color filter element 44 of the projection device 400 is disposed between the reflective light valve 420 and the projection lens 430. In other words, in the present embodiment, the illumination beam 413 is first converted into the image beam 413 by the reflective light valve 420, and then the image beam 413' is modulated into a desired color by the color filter element 440 to cause projection. The color of the image on the screen matches the expectations. The advantages of the projection apparatus 400 of the present embodiment, the color, material, formation manner, and detailed description of each element of the filter pattern 445 are similar to those of the above embodiment, and will not be repeated here. As described above, the projection apparatus of the present invention has at least the following advantages: 1. The color filter element of the present invention can filter white light into a plurality of different colors of light at the same time, and the light is simultaneously projected on the corresponding 蚩= Up, so it can effectively improve the rainbow effect and increase the light utilization efficiency, 'to improve the brightness and contrast of the image projected on the screen. 2. Since the color filter element is a fixture, and the filter element used in the prior art is a movable member, the color filter element of the present invention has a reliability of l 14 l 19375 twf.doc/p 200909973. The present invention has been described above by way of a preferred embodiment, and is not intended to limit the invention, and it is intended that the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a schematic view of a conventional projection apparatus using a single-piece reflective light valve. & Figure 1B is a schematic view of the color wheel of Figure 1A. 2 is a schematic view of a lighting system and a light valve of a conventional projection device. 3 is a schematic diagram of a projection apparatus according to an embodiment of the present invention. 4A is a partial top plan view of the reflective light valve of FIG. 3. 4B is a partial top view of the color filter element of FIG. 3. Figure 5 is a schematic illustration of a projection apparatus in accordance with another embodiment of the present invention. [Main component symbol description] 100, 400, 400': projection device 110, 200, 412: light source 112, 202: white light 115, 204, 414: collimating optics 120, 416: mirror 130: color wheel 132: red Filter 134. Green Matte Sheet 135: Dichroic Mirror 15 1 19375twf.doc/p 200909973 136: Blue Filter 140, 420: Reflective Light Valve 150, 430: Projection Lens 206: Collimated White Light 212 Light valve 214A, 214B, 214C: display surface 302: filter 304R: red light 304G: green light 304B: blue light 308: convertible optical system 410: illumination system 413: illumination beam 413': image beam 422: 昼440: color filter element 442: transparent substrate 442a: first surface 442b: second surface 444: color filter array 445; filter pattern 450: spectroscopic element R: first color filter pattern G: second color filter Light pattern B: third color filter pattern 16