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TW200804950A - Projector - Google Patents

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Publication number
TW200804950A
TW200804950A TW95125892A TW95125892A TW200804950A TW 200804950 A TW200804950 A TW 200804950A TW 95125892 A TW95125892 A TW 95125892A TW 95125892 A TW95125892 A TW 95125892A TW 200804950 A TW200804950 A TW 200804950A
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Taiwan
Prior art keywords
light
state
projector
lens
data
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Application number
TW95125892A
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Chinese (zh)
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TWI315441B (en
Inventor
Pei-Lun Song
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Benq Corp
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Publication of TWI315441B publication Critical patent/TWI315441B/en

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  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

A projector comprises a processor, an illuminating system, a digital micromirror device (DMD), and a lens. The processor is for converting several pixel data to several complementary pixel data, and generating several micromirror-controlling signals accordingly. Each pixel data is used for displaying a color. Each complementary pixel data is used for displaying a complementary color of the color of the corresponding pixel data. The illuminating system is for directing a beam of light. The DMD receives the beam of light and reflects it. The DMD comprises several micromirrors, which are disposed at a first state or a second state according to the micromirror-controlling signals. When being disposed at the first state, the micromirrors reflect the beam of light near the illuminating system. When being disposed at the second state, the micromirrors reflect the beam of light away the illuminating system. The lens receives the beam of light, which is reflected by the micromirrors at the second state, and reflects it to a screen for displaying an image.

Description

200804950 九、發明說明: 【發明所屬之技術領域】 本發明是有關於一種投影機,且特別是有關於一種互 換鏡頭與光吸收體之位置的投影機。 【先前技術】 第1A圖示意傳統投影機中數位微鏡元件之鏡片於第 -一狀悲時的光路圖。燈泡12所發出的光經由燈罩聚售在 分色轉輪(未繪示),產生的三原色匯聚於照明系、统 (illuminate optlcs)14。一般來說,照明系統14包括句光 管、聚光透鏡組、反射鏡以及凹面鏡等等,其功能在於將 光線均勻地照射於數位微鏡元件(Digital Micromirror Device, DMD) 6。數位微鏡元件6係包括數個鏡片i6a 0 每一個鏡片都可轉動而切換成第一狀態或第二狀態。當鏡 片16a於第二狀態下時,會將反射光線遠離照明系統14 _ 至光吸收體(light absorber)18。 第1B圖示傳統投影機中數位微鏡元件之鏡片於第一狀 態時的光路示意圖。當鏡片16b於第一狀態下時,會反射 光線接近照明系統14而進入鏡頭8,藉此,透過投影鏡頭 8將影像投射於螢幕22上。 然而,數位微鏡元件6係根據控制訊號以轉動鏡片的 方向,且鏡片僅能轉動至第一狀態或第二狀態,不能任意 改變方向。因此傳統投影機中,光吸收體18只能配置於 TW1957PA 6 200804950 .鏡片於第二狀態下之反射光線之廷伸線上。同時 只能配置於鏡片於第一狀態下之反射光線的方向,如第、1A 及1B圖所不。正因為如此,用以承接反射光線的鱼 置玫於特定位置,而用以產生入射光線的組 :地為到=原、光學元件等等’其置放位置與角度也間 接又]限制。進一步地說,傳統投影機之光學元 相對關係受到極為嚴苛的限制,大幅度地降 ^务 路設計上的自由度。同時,間接約束了傳統投影機 設計而難以有所突破。 【發明内容】 w田☆於此本發明的目的就是在提供—種投影機,係 :用:處理器將影像之晝素資料轉換為互補晝素資:: 付互補晝素貧料顯示對應晝素資料顯示之 :由=頭與光吸收區之配置位置,以配合互:畫色素; 光始影像之晝素資料的色彩,使得投影機的 光路汉叶及外型能有所變化。 s曰备i艮據本發明的目的,提出—種投影機包括處理器、照 明糸統、數位微鏡元株 於 ’、、 轉換為㈣3 項。處理11將數筆晝素資料 於,每筆查夸:素資料’並產生對應之數個微鏡控制訊 號母筆旦素育料係用以顯示色彩查 用以顯示對庫金夸次刺匕” 補旦素貝枓係 ㈣。奴/ 色彩之餘色。照明系統用以導引 / 立微鏡元件(Digital Micromirror Device,DMD) 係接收並反射級’數位微鏡元件包括數個鏡/,該些鏡200804950 IX. Description of the Invention: [Technical Field] The present invention relates to a projector, and more particularly to a projector for reciprocating a position of a lens and a light absorber. [Prior Art] Fig. 1A is a view showing the optical path of the lens of the digital micromirror element in the conventional projector in the first-order sorrow. The light emitted by the bulb 12 is collected on a dichroic wheel (not shown) via a lampshade, and the resulting three primary colors are concentrated in an illumination system illuminate optlcs 14. In general, the illumination system 14 includes a sentence light pipe, a condenser lens group, a mirror, a concave mirror, and the like, and functions to uniformly illuminate light to a Digital Micromirror Device (DMD) 6. The digital micromirror device 6 includes a plurality of lenses i6a 0 each of which is rotatable to switch to a first state or a second state. When the mirror 16a is in the second state, the reflected light is moved away from the illumination system 14_ to the light absorber 18. Fig. 1B is a view showing the optical path of the lens of the digital micromirror device in the first state in the conventional projector. When the lens 16b is in the first state, the reflected light approaches the illumination system 14 and enters the lens 8, whereby the image is projected onto the screen 22 through the projection lens 8. However, the digital micromirror element 6 is based on the control signal to rotate the direction of the lens, and the lens can only be rotated to the first state or the second state, and the direction cannot be arbitrarily changed. Therefore, in the conventional projector, the light absorber 18 can only be disposed on TW1957PA 6 200804950. The lens is reflected on the line of the light in the second state. At the same time, it can only be arranged in the direction of the reflected light of the lens in the first state, as shown in the figures 1A and 1B. Because of this, the fish used to receive the reflected light is in a specific position, and the group for generating the incident light is: the ground is the original, the optical element, etc., and the placement position and the angle are also indirectly limited. Further, the relative relationship of the optical elements of the conventional projector is extremely severely limited, and the degree of freedom in the design of the road is greatly reduced. At the same time, it indirectly constrains the design of traditional projectors and makes it difficult to make breakthroughs. SUMMARY OF THE INVENTION W Field ☆ The purpose of the present invention is to provide a projector that uses: a processor to convert image data into complementary auxiliaries:: Complementary 昼 贫 贫 显示 显示 显示 显示The data shows: the position of the head and the light absorption zone to match each other: the color of the pigment; the color of the data of the light-based image, so that the light path of the projector and its appearance can be changed. In accordance with the purpose of the present invention, a projector is provided that includes a processor, a lighting system, and a digital micromirror element in ', and is converted into (four) three items. Processing 11 will count the number of data of the sputum, each check the grammar: the data 'and generate a corresponding number of micro-mirror control signals, the mother pens are used to display the color check to show the hedgehog增旦素贝枓 (4). The slave / color of the color. The lighting system is used to guide / D Microscope components (DMD) is the receiving and reflecting level 'digital micromirror components including several mirrors /, The mirrors

TW1957PA 7 200804950 系統,當該些鏡片設置於 片依該些微鏡控制訊號設置於第一狀態或第二狀態,當該 些鏡片設置於第-狀態時’該些鏡片反射該光線接近照明 狀態時,該些鏡片反射光線 遠離照明系統。鏡頭接收透過第二狀態之鏡片反射之光 線,亚將光線投射至屏幕,藉此顯示影像。 ^讓,發明之上述目的、特徵、和優點能更明顯易 明如下: 亚配曰所附圖式,作詳細說 【實施方式】 請參照第2圖,其繪示本發明 一 之方塊圖。本實施例之投影機1〇〇包二二貫施例之投影機 姒於士姊也一 巴括處理器102、數位 卜兄 、、兄頭108及光吸收體118 較佳地與電腦12G連接,使得電 且彳又〜機100 資料〇得以傳遞數筆晝素 ' 1〇2〇4ilil 案貝料據以產生數筆互補書辛資粗 d 一念…^ 枓母一筆晝素資料係用 广-色衫’例如是紅色、綠色或藍色。 素資料係用以顯示對應晝素資料之餘色,例如是青綠色一 (Cyan)、洋紅色(Magenta)或黃色,分職紅色及 監色於光學上互補。 ,理器102根據此些互補晝素資料,產生數個微鏡控 ^訊號。數位微鏡元件鳩係接收此些微鏡控制訊號,並 據以切換數位微鏡疋件1〇6之數個鏡片116之狀熊。 投影機1〇〇更包括光源112及照明系统m恶光源TW1957PA 7 200804950 system, when the lenses are disposed on the sheet according to the micromirror control signals are set in the first state or the second state, when the lenses are disposed in the first state, the lenses reflect the light close to the illumination state, The lenses reflect light away from the illumination system. The lens receives the light reflected through the lens of the second state, and the light is projected onto the screen to display the image. The above-mentioned objects, features, and advantages of the invention will become more apparent and obvious. The following is a detailed description of the present invention. [Embodiment] Referring to Figure 2, a block diagram of the present invention is shown. The projector of the projector 1 of the present embodiment is preferably connected to the computer 12G by a projector including a processor 102, a digital tablet, a brother 108, and a light absorber 118. , so that the electricity and 彳 〜 ~ machine 100 data 〇 can pass a few pen ' ' ' 1 〇 2 〇 4ilil case shell material according to the production of several complementary books 辛 粗 粗 d a thought ... ^ 枓 昼 昼 昼 昼 资料 资料 资料The color shirt 'is, for example, red, green or blue. The data is used to display the remaining color of the corresponding element data, such as Cyan, Magenta or yellow. The red and the color are complementary to each other. The processor 102 generates a plurality of micromirror signals according to the complementary pixel data. The digital micromirror device receives the micromirror control signals and switches the plurality of lenses 116 of the digital micromirror device 1〇6. The projector 1 further includes a light source 112 and a lighting system

TW1957PA 8 200804950 112產生一光線,經由燈罩聚焦在分色轉輪(未繪示),產 生的三原色匯聚於照明系統(illuminate 0pt'lcs)1l4。為 讓圖示簡單清楚,此處僅繪示出一透鏡代表照明系统v 114。一般來說,照明系統114包括勻光管、聚光透鏡纽 反射鏡以及凹面鏡等等,其功能在於將光線均勻地照射、 數位微鏡元件(Digital Micromirror Device,DMD) 、 數位微鏡元件106係受控於處理器1〇2輸出之微 控制訊號,使得數個鏡片116分別切換至第一狀能或 '兄 狀態,㈣光線反射至鏡頭1〇8或光吸收體118。— ,麥照第3AU,其繪示第2圖之投影機之鏡片於 -狀態時之光路示意圖。當鏡片mb於第一狀態時,、 反射照明系統114之光線接近該照明系統m至光吸故辦 118 ’而光線無法通過鏡頭_投射至屏幕122上- 收體118接收透過第-狀態之鏡片1働反射之光線,2 光吸收體118係由非反光材質所構成。 Μ請f照第祁圖,其緣示第2圖之投影機之一鏡片於 第二狀態時之光路示意圖。當鏡片ii6a於第二狀態下,、 係反射照明系統114之光線遠離照明系統114至鏡頭 備。鏡頭108接收透過第二狀態之鏡片ma反射之光 線,亚據以將光線投射至屏幕122,藉此顯示影像。 請麥照第2圖’舉例來說,當處理器Ί02接收之一查 素資料代f欲顯示之色彩為黑色時,處理器102係產生: 互補里素貝料’此互補晝素資料係代表欲顯示之色彩為白 色。處理益102根據此些互補晝素資料,產生微鏡控制訊TW1957PA 8 200804950 112 generates a light that is focused on a color separation wheel (not shown) via a lampshade, and the resulting three primary colors converge on the illumination system (illuminate 0pt'lcs) 14.4. For simplicity and clarity of illustration, only one lens is shown herein to represent illumination system v114. In general, the illumination system 114 includes a light homogenizing tube, a condenser lens mirror, a concave mirror, and the like, and functions to uniformly illuminate light, a digital micromirror device (DMD), and a digital micromirror device 106. The micro-control signals controlled by the processor 1〇2 are controlled such that the plurality of lenses 116 are respectively switched to the first state or the “brother state”, and (4) the light is reflected to the lens 1〇8 or the light absorber 118. —, Mai Zhao 3AU, which shows a schematic diagram of the optical path of the lens of the projector of Fig. 2 in the state. When the lens mb is in the first state, the light of the reflective illumination system 114 approaches the illumination system m to the light-emitting device 118' and the light cannot be projected through the lens_ onto the screen 122. The receiver 118 receives the lens through the first state. 1 働 reflected light, 2 light absorber 118 is composed of non-reflective material. fPlease refer to the figure, which is a schematic diagram of the optical path of the lens of the projector of Fig. 2 in the second state. When the lens ii6a is in the second state, the light from the illumination system 114 is reflected away from the illumination system 114 to the lens. The lens 108 receives the light reflected through the lens ma of the second state, and projects the light to the screen 122, thereby displaying the image. Please refer to FIG. 2 for example. When the processor Ί 02 receives one of the check data and the color to be displayed is black, the processor 102 generates: a complementary ribbed material. The color to be displayed is white. Processing benefit 102 generates micromirror control based on these complementary element data

TW1957PA 9 200804950 號以切換對應之鏡片116至第一狀態,使得投射至鏡片 116之光線反射至光吸收體118,藉以使鏡頭巧⑽呈$查 素資料所對應之黑色色彩。 、王現晝 需注意的是,由於本實施例之晝素資料經過二次 換,對應於原晝素資料之影像係可正確的顯示出來。入查去 資料經過處理器轉換為互補畫素資料,為第一次轉換:TW1957PA 9 200804950 switches the corresponding lens 116 to the first state, so that the light projected onto the lens 116 is reflected to the light absorber 118, so that the lens (10) is in the black color corresponding to the sample data. Wang Xianying It should be noted that since the halogen data of this embodiment is changed twice, the image corresponding to the original halogen data can be correctly displayed. The data is converted into complementary pixel data by the processor for the first conversion:

較於傳統投影機,本實施例之鏡頭與光吸收體之位置互相 換,為第二次轉換。當鏡片位於第一狀態下,將原本=射 至鏡頭之光線,於本實施例中反射至光吸收體。當鏡片位 於第二狀態下,原本反射至光吸收體之光線,於 中反射至鏡頭。 、^ J 本實施例所揭露之投影機係藉由將晝素資料轉換為 互補晝素資料,並互換鏡頭與光吸收體之位置,使鏡頭與 光吸收體不必因為數位微鏡元件之設計而侷限於特定的/、 位置,可增加外㈣計的變化性;其次,增加鏡頭與其他 元件(例如是光源、照明系統内之光學元件等等)之距離, 可提高光路料、元件配置之自由度。因此,本實施例所 揭露之投影機可變化其光路設計,使得投影機之外型有較 夕變化,付合日守下電子產品在外型上求新求變的趨勢。 綜上所述,雖然本發明已以一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,當可作各種之更動與潤飾,因此 本發明之喊範圍當祕附之^料利範_界定者為 準。Compared with the conventional projector, the position of the lens and the light absorbing body of this embodiment are interchanged for the second conversion. When the lens is in the first state, the light originally incident on the lens is reflected to the light absorber in this embodiment. When the lens is in the second state, the light originally reflected to the light absorber is reflected to the lens in the middle. The projector disclosed in this embodiment converts the halogen data into complementary pixel data and interchanges the positions of the lens and the light absorber, so that the lens and the light absorber do not have to be designed because of the digital micromirror device. Limited to a specific /, position, can increase the variability of the external (four) meter; Second, increase the distance between the lens and other components (such as the light source, optical components in the lighting system, etc.), can improve the freedom of optical material, component configuration degree. Therefore, the projector disclosed in this embodiment can change the design of the optical path, so that the appearance of the projector changes over time, and the trend of the electronic product in the appearance of the electronic product is changed. In view of the above, the present invention has been described above with reference to a preferred embodiment, and is not intended to limit the invention, and various modifications may be made without departing from the spirit and scope of the invention. And the retouching, therefore, the scope of the shouting of the present invention is subject to the definition of the product.

TW1957PA 10 200804950 【圖式簡單說明】 第1A圖示意傳統投影機中數位微鏡元件之鏡片於第 二狀態時的光路圖。 第1B圖示傳統投影機中數位微鏡元件之鏡片於第一 狀態時的光路示意圖。 第2圖繪示本發明之較佳實施例之投影機之方塊圖。 第3A圖繪示第2圖之投影機之一鏡片於第一狀態時 之光路不意圖。 _ 第3B圖繪示第2圖之投影機之一鏡片於第二狀態時 之光路不意圖。 TW1957PA 11 200804950 # 【主要元件符號說明】 6:數位微鏡元件 8 :鏡頭 10 :投影機 12 :光源 14 :照明系統 16a、16b :鏡片 18 :光吸收體 _ 22:屏幕 100 :投影機 102 :處理器 106 :數位微鏡元件 108 :鏡頭 112 :光源 114 :照明系統 116、116a、116b ··鏡片 _ 118 :光吸收體 120 :電腦 122 :屏幕 TW1957PA 12TW1957PA 10 200804950 [Simple description of the drawing] Fig. 1A is a view showing the optical path of the lens of the digital micromirror device in the second state in the conventional projector. Fig. 1B is a view showing the optical path of the lens of the digital micromirror device in the conventional state in the first state. Figure 2 is a block diagram of a projector in accordance with a preferred embodiment of the present invention. Fig. 3A is a view showing the optical path of one of the projectors of Fig. 2 in the first state. _ Figure 3B shows the optical path of one of the projectors of Figure 2 in the second state. TW1957PA 11 200804950 # [Description of main component symbols] 6: Digital micromirror component 8: Lens 10: Projector 12: Light source 14: Illumination system 16a, 16b: Lens 18: Light absorber _ 22: Screen 100: Projector 102: Processor 106: digital micromirror element 108: lens 112: light source 114: illumination system 116, 116a, 116b · lens 117: light absorber 120: computer 122: screen TW1957PA 12

Claims (1)

200804950 十、申請專利範圍: 1· 一種投影機,至少包括: 一處理器,將複數筆晝素資料轉換為複數筆互補晝素 資料,並產生對應之複數個微鏡控制訊號,每一筆晝素資 料係用以顯示一色彩,每一該些互補晝素資料係用以顯示 對應畫素資料之該色彩之餘色; 一照明系統,用以導引一光線; 一數位微鏡元件(Digital Micromirror Device, _ DMD),係接收並反射該光線,該數位微鏡元件包括複數 個鏡片,該些鏡片依該些微鏡控制訊號設置於一第一狀態 或一第二狀態,當該些鏡片設置於該第一狀態時,該些鏡 片反射該光線接近該照明系統,當該些鏡片設置於該第二 狀態時,該些鏡片反射該光線遠離該照明系統;以及 一鏡頭,接收透過該第二狀態之該鏡片反射之該光 線,並將該光線投射至一屏幕,藉此顯示一影像。 2·如申請專利範圍第1項所述之投影機,其中該些晝 素資料所顯示之色彩係紅色、綠色或藍色。 3·如申請專利範圍第2項所述之投影機,其中該些互 補晝素資料所顯示之餘色係青綠色(Cyan)、洋紅色 (Magenta)或黃色,係分別與紅色、綠色及藍色於光學上 互補。 4·如申請專利範圍第1項所述之投影機,其中該些晝 素資料係由一電腦輪出,且該電腦係與該投影機連接,用 以傳遞該些晝素資料。 TW1957PA 13 200804950 5.如申請專利範圍第1項所述之投影機,更包括: 一光吸收體接收透過該第一狀態之該鏡片反射之該 光線。 6.如申請專利範圍第5項所述之投影機,其中該光吸 收體係由非反光材質所構成。200804950 X. Patent application scope: 1. A projector, comprising at least: a processor, converting a plurality of pen-form data into a plurality of complementary pixel data, and generating a corresponding plurality of micro-mirror control signals, each pen The data is used to display a color, each of the complementary pixel data is used to display the color of the corresponding pixel data; an illumination system for guiding a light; a digital micromirror device (Digital Micromirror) Device, _DMD), receiving and reflecting the light, the digital micromirror device includes a plurality of lenses, and the lenses are disposed in a first state or a second state according to the micromirror control signals, when the lenses are disposed on In the first state, the lenses reflect the light to the illumination system, and when the lenses are disposed in the second state, the lenses reflect the light away from the illumination system; and a lens receives the second state The lens reflects the light and projects the light onto a screen to display an image. 2. The projector of claim 1, wherein the color data is red, green or blue. 3. The projector of claim 2, wherein the complementary color data is displayed in Cyan, Magenta or yellow, respectively, with red, green and blue The color is optically complementary. 4. The projector of claim 1, wherein the data is rotated by a computer and the computer is coupled to the projector for transmitting the halogen data. 5. The projector of claim 1, further comprising: a light absorber that receives the light reflected by the lens in the first state. 6. The projector of claim 5, wherein the light absorbing system is comprised of a non-reflective material. TW1957PA 14TW1957PA 14
TW95125892A 2006-07-14 2006-07-14 Projector TWI315441B (en)

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