1302633 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種具有色彩調整機制之投影系統及其色 彩調整方法，特別係關於一種根據投影機之光源光譜資料 及色輪光譜資料產生色彩調整資料並據以調整各投影機之 輪出色彩的投影系統及其色彩調整方法。 【先前技術】 I 在各類大型廣告看板中，電視牆已經廣泛地應用於人潮 洶湧的熱鬧商區，藉由電視牆之優異的聲光效果引起消費 者之注意力，進而達成廣告行銷之目的。 圖1係一習知之電視牆60之示意圖。該電視牆60包含例如 ' 是四個顯示單元62A、62B、62C及62D，其係藉由將一個母 晝面70分割成四個子晝面72A、72B、72C及72D，再分別顯 示於四個顯示單元62A、62B、62C及62D。藉由該四個顯示 單元62A、62B、62C及62D之組合，該母畫面70可以放大四 B 倍的方式顯示。各顯示單元62A、62B、62C及62D之色彩必 須一致，方可呈現均勻之整體畫面品質。惟，各顯示單元 62A、62B、62C及62D經常因元件之彼此差異而具有不同的 色彩，導致不佳的畫面品質。 【發明内容】 本發明之主要目的係提供一種根據投影機之光源光譜資 料及色輪光譜資料產生色彩調整資料並據以調整各投影機 之輸出色彩的投影系統及其色彩調整方法，因而可產生一 致均勻色彩之晝面，提昇晝面品質。1302633 IX. Description of the Invention: [Technical Field] The present invention relates to a projection system having a color adjustment mechanism and a color adjustment method thereof, and more particularly to a color adjustment based on spectral data of a light source of a projector and spectral data of a color wheel The data is also used to adjust the projection system of each projector's wheel color and its color adjustment method. [Prior Art] I In various large-scale advertising billboards, the TV wall has been widely used in the crowded and lively business districts, and the attention of consumers is attracted by the excellent sound and light effects of the TV wall, thereby achieving the purpose of advertising marketing. . 1 is a schematic illustration of a conventional video wall 60. The video wall 60 includes, for example, four display units 62A, 62B, 62C, and 62D that are divided into four sub-faces 72A, 72B, 72C, and 72D by four parent side faces 72, respectively, and then displayed on four Display units 62A, 62B, 62C, and 62D. By the combination of the four display units 62A, 62B, 62C, and 62D, the mother screen 70 can be displayed in a four-fold magnification. The colors of the display units 62A, 62B, 62C, and 62D must be identical to provide a uniform overall picture quality. However, each of the display units 62A, 62B, 62C, and 62D often has a different color due to differences in components, resulting in poor picture quality. SUMMARY OF THE INVENTION The main object of the present invention is to provide a projection system for generating color adjustment data according to source spectrum data of a projector and color wheel spectral data, and adjusting the output color of each projector, and a color adjustment method thereof, thereby generating The uniform uniform color of the face, improve the quality of the face.
107808.DOC -6- 144250 1〇78〇8 .1302633 為達成上述目的，本發明提出一種投影系統，其包含一 主動投影機及至少一從屬投影機，該主動投影機包含一可 產生光束之光源、一可從該光束產生複數種色光之色輪、 一可將該複數種色光反射至一呈像區的微鏡元件、一可產 生一色彩調整資料之處理器以及一可根據該色彩調整資料 驅動該微鏡元件反射該複數種色光以形成一目標色於該呈 像區之控制器。該從屬投影機之架構與該主動投影機基本 相同。 申言之，該主動投影機與該從屬投影機之控制器係根據 该色彩調整資料與該目標色之差異控制該微鏡元件之開關 時間或是反射強度。該光源產生之光束具有一光源光譜資 料’且該色輪產生之複數種色光具有一色輪光譜資料，其 包含至少三個波段，分別對應至紅光、綠光及藍光。該色 彩調整資料包含四個色度座標值，分別為一紅光色度座標 值、一綠光色度座標值、一藍光色度座標值及一白光色度 座標值。 T7亥主動4又衫機之處理器可另包含一輸入璋，可供一使用 者輸入一預設色彩調整資料。此外，該主動投影機之處理 器亦可僅根據該主動投影機之光源光譜資料及色輪光譜資 料產生該色彩調整資料。此外，該主動投影機之處理器另 可根據該主動投影機及該從屬投影機之光源光譜資料及色 輪光譜資料’採用平均方式產生該色彩調整資料。之後， 該主動投影機傳送該色彩調整資料至該從屬投影機，而各 投影機之控制器則根據相同的色彩調整資料驅動該微鏡元107808.DOC -6- 144250 1〇78〇8 .1302633 In order to achieve the above object, the present invention provides a projection system comprising an active projector and at least one slave projector, the active projector comprising a light source capable of generating a light beam a color wheel capable of generating a plurality of color lights from the light beam, a micromirror element capable of reflecting the plurality of color lights to an image area, a processor capable of generating a color adjustment data, and a data adjustment data according to the color The micromirror device is driven to reflect the plurality of colored lights to form a controller for the target color in the image area. The architecture of the slave projector is basically the same as that of the active projector. In other words, the active projector and the controller of the slave projector control the switching time or the reflection intensity of the micromirror device according to the difference between the color adjustment data and the target color. The light beam produced by the light source has a light source spectral material' and the plurality of color lights generated by the color wheel have a color wheel spectral data comprising at least three bands corresponding to red, green and blue light, respectively. The color adjustment data includes four chromaticity coordinate values, namely a red chromaticity coordinate value, a green chromaticity coordinate value, a blue chromaticity coordinate value, and a white chromaticity coordinate value. The processor of the T7 Hai Active 4 and the second machine can further include an input port for a user to input a preset color adjustment data. In addition, the processor of the active projector can also generate the color adjustment data based only on the source spectrum data of the active projector and the color wheel spectrum data. In addition, the processor of the active projector can generate the color adjustment data in an average manner according to the spectral data of the source of the active projector and the slave projector and the spectral data of the color wheel. Thereafter, the active projector transmits the color adjustment data to the slave projector, and the controller of each projector drives the micromirror according to the same color adjustment data.
107808.DOC 107808 -7- 1302633 件，如此即可產生一致均勻色彩之晝面。 習知技藝之顯示單元經常因元件之彼此差異而具有不同 的*色彩，導致不佳的晝面品質。相對地，本發明之投影系 統藉由該主動投影機傳送該色彩調整資料至該從屬投影機 ，而各投影機之控制器則根據相同的色彩調整資料驅動該 微鏡元件，如此即可產生一致均勻色彩之畫面。 【實施方式】 φ 圖2至圖7例示本發明之投影系統1〇〇。該投影系統1〇〇包 含例如有四台投影機ll〇A、11〇B、u〇c及u〇D，但本發明 之投影系統的投影機數量不以此為限。該投影機丨丨〇 A、 110B、ii〇c及110D可具有相同之架構，其中一台（例如投 影機110A)被設定為主動投影機（master projector)，而其它 三台（即投影機110B、110C及110D)則被設定為從屬投影機 (slave projector)。由於主動投影機和從屬投影機可具有相 同之架構，因此以下用來描述主動投影機之裝置的標號同 φ 樣適用於從屬投影機。 圖3例示該主動投影機110A。該主動投影機ιιοΑ包含一 可發出光束36之發光裝置（即一光源）35、一可從該光束36 產生複數種色光之色輪46、一可將該複數種色光反射至一 呈像區的微鏡元件42(micromirror deviee)42、一設置於該呈 像區之影像顯示元件（例如一電視牆之螢幕）44、一可產生一 色彩調整資料之處理器120以及一可根據該色彩調整資料 驅動該微鏡元件4 2反射該複數種色光以形成一目標色於該 影像顯示元件44(即該呈像區）之控制器130。107808.DOC 107808 -7- 1302633 pieces, so that a uniform uniform color can be produced. Conventional display units often have different * colors due to differences in components, resulting in poor face quality. In contrast, the projection system of the present invention transmits the color adjustment data to the slave projector by the active projector, and the controller of each projector drives the micromirror device according to the same color adjustment data, so that the uniformity is generated. A picture of uniform color. [Embodiment] φ FIGS. 2 to 7 illustrate a projection system 1 of the present invention. The projection system 1 includes, for example, four projectors 〇A, 11〇B, u〇c, and u〇D, but the number of projectors of the projection system of the present invention is not limited thereto. The projectors A, 110B, ii, c, and 110D may have the same architecture, one of which (for example, projector 110A) is set as a master projector, and the other three (ie, projector 110B) , 110C and 110D) are set as slave projectors. Since the active projector and the slave projector can have the same architecture, the following reference numerals for the apparatus for describing the active projector are suitable for the slave projector. FIG. 3 illustrates the active projector 110A. The active projector ιιοΑ includes a light emitting device (ie, a light source) 35 that emits a light beam 36, a color wheel 46 that can generate a plurality of color lights from the light beam 36, and a plurality of color lights that can be reflected to an image area. a micromirror device 42 (a micromirror deviee) 42 , an image display component (such as a video wall screen) 44 disposed in the image area, a processor 120 capable of generating a color adjustment data, and a data adjustment data according to the color The micromirror element 42 is driven to reflect the plurality of color lights to form a controller 130 having a target color for the image display element 44 (ie, the image area).
107808.DOC 144250 107808 .1302633 該投影機110A可另包含一光束整合管38、一中繼透鏡40 及一投影鏡48。該發光裝置35包含一可產生光束36之燈芯 32以及一可聚集該光束36至該光束整合管38之橢圓反射鏡 34。該光束整合管38為一内表面塗佈反射材料之中空管， 可均勻化該光束36之強度分佈。該微鏡元件42具有一主動 表面20以及複數個設置於該主動表面20上之微鏡24(為清 晰起見，圖3僅例示一個微鏡24)。該微鏡24係在與該主動 表面20傾斜+1〇度至-10度的範圍内活動，而該光束36係以 18_22度間（較佳地為20度）之入射角入射至該微鏡元件42之 主動表面20。 參考圖4及圖5，該發光裝置35產生之光束3 6具有一光源 光譜資料35’，其波段係介於400奈米至700奈米之間，為一 白光，如圖4所示。該色輪46包含一紅光濾波片46A、一綠 光濾波片46B以及一藍光濾波片46C，其產生之複數種色光 具有一色輪光譜資料46^其包含至少三個波段，分別對應 至紅光、綠光及藍光，如圖6所示。該光源光譜資料35’及該 色輪光譜資料46’可分別儲存於一記憶裝置之中，例如是記 憶卡，且該主動投影機110A及該從屬投影機110B、110C及 110D可設置一讀取裝置（例如是讀卡機），用以讀取該記憶 裝置儲存之光源光譜資料35’及色輪光譜資料46’。 參考圖7 ’根據國際照明委員會（international Commission on Illumination，CIE)制定之 CIE1931 色度圖（chromaticity diagram)，標準白光之色度座標值為（〇·33,0·33)。該光源光 譜資料35’（一白光光譜）係對應至CIE1931色度圖之一點，其 144250 1〇78〇8 107808.DOC q •1302633 色度座標值大約為（〇·33,0·33);同理，該色輪光譜資料46, 之紅光波段、綠光波段及藍光波段亦對應CIE193丨色度圖之 三點，其色度座標值分別落於CIE1931色度圖之紅光區142 、綠光區144及藍光區146。由於各投影機之發光裝置35和/ 或該色輪46彼此差異，該主動投影機110A及該從屬投影機 110B、110C及110D之光源光譜資料35,在CIE 1931色度圖上 之色度座標值可能並不相同，且該色輪光譜資料46,之三個 波段在CIE 193 1色度圖之三點的色度座標值亦可能並不相 同，導致呈現在該影像顯示元件44之畫面具有不同的色彩 ，進而造成不佳的晝面品質。 複參圖3，該主動投影機110A之處理器120包含一輸入埠 — 122，可供一使用者輸入一預設色彩調整資料，其可為四個 CIE193 1色度座標值，包含一紅光色度座標值、一綠光色度 座標值、一藍光色度座標值及一白光色度座標值。此外， 該主動投影機110A之處理器12〇亦可僅根據該主動投影機 φ ΠΟΑ之光源光譜資料35’及色輪光譜資料46,產生該色彩調 整資料，亦即直接設定該主動投影機110A之光源光譜資料 35*及色輪光譜資料46,對應之四個CIE193 1色度座標值為色 彩調整資料。 另，該主動投影機110A之處理器120具有一輸入埠124， 用以接收該從屬投影機11 OB、110C、110D之光源光譜資料 35’及色輪光譜資料46’。該處理器120可根據該主動投影機 110A及該從屬投影機110B、110C、110D之光源光譜資料35, ，產生一白光色度座標值，並根據該主動投影機110A及該107808.DOC 144250 107808 .1302633 The projector 110A can further include a beam integration tube 38, a relay lens 40, and a projection mirror 48. The illumination device 35 includes a wick 32 that produces a beam 36 and an elliptical mirror 34 that collects the beam 36 to the beam integration tube 38. The beam integration tube 38 is a hollow tube coated with a reflective material on the inner surface to homogenize the intensity distribution of the beam 36. The micromirror element 42 has an active surface 20 and a plurality of micromirrors 24 disposed on the active surface 20 (for clarity, only one micromirror 24 is illustrated in Fig. 3). The micromirror 24 is movable in a range of +1 至 to -10 degrees from the active surface 20, and the beam 36 is incident on the micromirror at an incident angle of 18-22 degrees (preferably 20 degrees). Active surface 20 of element 42. Referring to Figures 4 and 5, the light beam 36 generated by the illumination device 35 has a source spectral data 35' having a wavelength band between 400 nm and 700 nm, which is a white light, as shown in Fig. 4. The color wheel 46 includes a red light filter 46A, a green light filter 46B, and a blue light filter 46C. The plurality of color lights generated have a color wheel spectral data 46. The color wheel 46 includes at least three bands respectively corresponding to the red light. , green light and blue light, as shown in Figure 6. The light source spectral data 35' and the color wheel spectral data 46' can be respectively stored in a memory device, such as a memory card, and the active projector 110A and the slave projectors 110B, 110C and 110D can be set to read. The device (for example, a card reader) is configured to read the source spectrum data 35' and the color wheel spectrum data 46' stored by the memory device. Referring to Figure 7', according to the CIE1931 chromaticity diagram developed by the International Commission on Illumination (CIE), the chromaticity coordinate of standard white light is (〇·33,0·33). The source spectral data 35' (a white light spectrum) corresponds to one point of the CIE1931 chromaticity diagram, and its 144250 1〇78〇8 107808.DOC q •1302633 chromaticity coordinate value is approximately (〇·33,0·33); Similarly, the color wheel spectrum data 46, the red band, the green band and the blue band also correspond to the three points of the CIE193 丨 chromaticity diagram, and the chromaticity coordinate values respectively fall in the red zone 142 of the CIE1931 chromaticity diagram, Green light area 144 and blue light area 146. Since the illumination device 35 and/or the color wheel 46 of each projector are different from each other, the illuminance coordinates of the active projector 110A and the source spectral data 35 of the slave projectors 110B, 110C and 110D on the CIE 1931 chromaticity diagram The values may not be the same, and the chromaticity coordinates of the three bands of the color wheel spectral data 46 may not be the same at three points of the CIE 193 1 chromaticity diagram, resulting in a picture presented on the image display element 44. Different colors, resulting in poor quality of the noodles. Referring to FIG. 3, the processor 120 of the active projector 110A includes an input port 122 for a user to input a preset color adjustment data, which can be four CIE193 1 chromatic coordinate values, including a red light. Chromaticity coordinate value, a green chromaticity coordinate value, a blue chromaticity coordinate value, and a white light chromaticity coordinate value. In addition, the processor 12 of the active projector 110A can also generate the color adjustment data based on the source spectrum data 35' and the color wheel spectrum data 46 of the active projector φ ,, that is, directly set the active projector 110A. The source spectrum data 35* and the color wheel spectrum data 46, corresponding to the four CIE193 1 chromaticity coordinates are color adjustment data. In addition, the processor 120 of the active projector 110A has an input port 124 for receiving the source spectrum data 35' and the color wheel spectrum data 46' of the slave projectors 11 OB, 110C, 110D. The processor 120 generates a white light chromaticity coordinate value according to the active projector 110A and the source spectral data 35 of the slave projectors 110B, 110C, and 110D, and according to the active projector 110A and the
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從屬投影機11 OB、110C、110D之色輪光譜資料46,產生一紅 光色度座標值、一綠光色度座標值及一藍光色度座標值， 其中該白光色度座標值、該紅光色度座標值、該綠光色度 座標值及該藍光色度座標值構成該色彩調整資料。該白光 色度座標值係該主動投影機110A及該從屬投影機11 〇B、 110C、110D之光源光譜資料35’對應之色度座標值的平均值 。另，该色輪光譜資料4 6 ’包含至少一紅光波段、一綠光波 0 段及一藍光波段，該紅光色度座標值係該主動投影機1丨〇 A 及該從屬投影機110B、110C、110D之紅光波段對應之色度 座標值的平均值，該綠光色度座標值係該主動投影機11〇八 及該從屬投影機110B、110C、110D之綠光波段之色度座標 值的平均值，該藍光色度座標值係該主動投影機u〇A及該 從屬投影機110B、110C、110D之藍光波段之色度座標值的 平均值。 該控制器130包含一耦接於該處理器12〇之控制訊號輸入 Φ 埠132以及一用以接收欲顯示於該影像顯示元件44(即該呈 像區）之影像資料的影像資料輸入埠134。該影像資料之來 源可為例如是一數位相機或電腦等，且該影像資料係由許 多目標色構成。在該主動投影機11〇A的處理器12〇完成或產 生或得到（統稱：產生）該色彩調整資料之後，該主動投影機 110A即可藉由一輸出埠126傳送該色彩調整資料至該從屬 才又〜機110B、110C及110D，而各投影機之控制器13〇則根 據相同的色彩調整資料驅動其所屬的微鏡元件42，如此該 投影系統10即可產生一致均勾色彩之畫面。申言之，各投The color wheel spectral data 46 of the slave projectors 11 OB, 110C, 110D generates a red chromaticity coordinate value, a green chromaticity coordinate value, and a blue chromaticity coordinate value, wherein the white chromaticity coordinate value, the red The color chromaticity coordinate value, the green chromaticity coordinate value, and the blue chromaticity coordinate value constitute the color adjustment data. The white chromaticity coordinate value is the average of the chromaticity coordinate values corresponding to the source spectral data 35' of the active projector 110A and the slave projectors 11 〇 B, 110C, 110D. In addition, the color wheel spectral data 4 6 ′ includes at least one red light band, one green light wave 0 segment, and a blue light band, and the red light chromaticity coordinate value is the active projector 1A and the slave projector 110B, The average value of the chromaticity coordinate values corresponding to the red light band of 110C and 110D, the green light chromaticity coordinate value is the chromaticity coordinate of the green light band of the active projector 11 and the slave projectors 110B, 110C, and 110D. The average value of the blue chromaticity coordinate values is the average of the chromaticity coordinate values of the active projector u 〇 A and the blue light bands of the slave projectors 110B, 110C, 110D. The controller 130 includes a control signal input Φ 132 coupled to the processor 12 and an image data input 134 for receiving image data to be displayed on the image display element 44 (ie, the image area). . The source of the image data may be, for example, a digital camera or a computer, and the image data is composed of a plurality of target colors. After the processor 12 of the active projector 11A completes or generates or obtains (collectively: generates) the color adjustment data, the active projector 110A can transmit the color adjustment data to the slave by an output port 126. The controllers 13B, 110C, and 110D, respectively, and the controllers 13 of each projector drive the micromirror elements 42 to which they belong according to the same color adjustment data, so that the projection system 10 can produce a uniform uniform color picture. Promise
1078O8.DOC L44250 107808 -11 - .1302633 影機之控制器130係根據該色彩調整資料與該目標色之差 異控制其所屬的微鏡元件42之微鏡24的開關時間或是其反 射強度’將來自該色輪46之三種色光混色，以形成該目標 色於該影像顯示元件44。 習知技藝之顯示單元62A、62B、62C及62D經常因元件之 彼此差異而具有不同的色彩，導致不佳的晝面品質。相對 地本舍明之投影系統1 〇藉由該主動投影機π 〇 a傳送該色 彩調整資料至該從屬投影機110B、11〇(：及11〇1：)，且各投影 機之控制器130則根據相同的色彩調整資料驅動該微鏡元 件42，如此即可產生一致均勻色彩之晝面，解決習知技藝 之畫面色彩不一致的問題。 本發明之技術内容及技術特點已揭示如上，然而熟悉本 項技術之人士仍可能基於本發明之教示及揭示而作種種不 背離本發明精神之替換及修飾。因此，本發明之保護範圍 應不限於貫施例所揭示者，而應包括各種不背離本發明之 替換及修飾，並為以下之申請專利範圍所涵蓋。 【圖式簡要說明】 圖1係一習知之電視牆之示意圖；以及 圖2至圖7例示本發明之投影系統。 【主要元件符號說明】 20 主動表面 24 微鏡 32 燈芯 34 橢圓反射鏡 35 發光裝置 35* 光源光譜資料 36 光束 38 光束整合管 -12 -1078O8.DOC L44250 107808 -11 - .1302633 The controller 130 of the camera controls the switching time or the reflection intensity of the micromirror 24 of the micromirror component 42 to which it belongs based on the difference between the color adjustment data and the target color. The three color lights from the color wheel 46 are mixed to form the target color on the image display element 44. The display units 62A, 62B, 62C, and 62D of the prior art often have different colors due to differences in components, resulting in poor face quality. In contrast, the projection system 1 of the present invention transmits the color adjustment data to the slave projectors 110B, 11〇 (: and 11〇1:) by the active projector π 〇 a, and the controller 130 of each projector The micromirror element 42 is driven according to the same color adjustment data, so that a uniform uniform color can be produced, and the problem of inconsistent picture color of the prior art is solved. The technical contents and technical features of the present invention have been disclosed as above, and those skilled in the art can still make various substitutions and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be construed as not limited by the scope of the invention, and the invention is intended to BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a conventional video wall; and Figs. 2 through 7 illustrate a projection system of the present invention. [Main component symbol description] 20 Active surface 24 Micromirror 32 Wick 34 Elliptical mirror 35 Illumination device 35* Source spectrum data 36 Beam 38 Beam integration tube -12 -
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40 中繼透鏡 42 44 影像顯示元件 46 46f 色輪光譜資料 46Α 46B 綠光濾波片 46C 48 投影鏡 60 62A 顯示單元 62Β 62C 顯示單元 62D 70 母晝面 72Α 72B 子晝面 72Β 72D 子畫面 100 ΠΟΑ主動投影機 110Β 11 0C從屬投影機 110D 120 處理器 122 124 輸入埠 126 130 控制器 132 134 影像資料輸入淳 142 144 綠光區 146 微鏡元件 色輪 紅光濾波片 藍光濾波片 電視牆 顯示單元 顯示單元 子畫面 子晝面 投影系統 從屬投影機 從屬投影機 輸入淳 輸出琿 控制訊號輸入埠 紅光區 藍光區 107808.DOC 13-40 Relay lens 42 44 Image display component 46 46f Color wheel spectrum data 46Α 46B Green filter 46C 48 Projection mirror 60 62A Display unit 62Β 62C Display unit 62D 70 Female side 72Α 72B Sub-surface 72Β 72D Sub-picture 100 ΠΟΑ Active Projector 110Β 11 0C Slave Projector 110D 120 Processor 122 124 Input 埠 126 130 Controller 132 134 Image Data Input 淳 142 144 Green Zone 146 Micromirror Component Color Wheel Red Filter Blue Light Filter TV Wall Display Unit Display Unit Sub-picture sub-projection system slave projector slave projector input 淳 output 珲 control signal input 埠 red zone blue zone 107808.DOC 13-