TW579451B - A liquid crystal display projection system with high performance - Google Patents
A liquid crystal display projection system with high performance Download PDFInfo
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579451 五、發明說明(1) - 【發明所屬之技術領域】 本發明是關於一種高效能液晶投影系統,特別是關於 一種小型化之高效能液晶投影系統。 、 【先前技術】 隨著投影顯示技術的發展,投影系統及設備在最近幾 年之内有著非常迅速的發展。更輕、更小與亮度更高的液 晶投影機(Liquid Crystal Device,LCD)或數位光源處王里 才又景’機(DLP,Digital Light Projector),更提供除了吟 極射像管式投影機(CRT Projector)之外的其他選擇。 數位光源處理投影機(DLP,Digital Light Projector)是利用德州儀器(TI )所開發的微型鏡晶片 (DMD,Digital Micromirror Device)元件所建構而成 之投影機。德州儀器目前是DMD的唯一供應廠商,以其微 機電系統技術(Micro Electric Mechanical System)為 基礎開發半導體製程,目前最新之開發進度為〇 · 7英吋 在縮小投影機體積上有相當大的優勢。DLP的技術完全採 用數位控制,有高亮度、反應時間快、無雜訊等優點;光 源經過集光後,經由透鏡聚焦,穿過RGB三色濾光片後掃 瞒轉盤達到全彩的效果。再投射至微型鏡晶片(DMD)上, 其由微小的微鏡片所組成,透過驅動電極產生微小反射缝 的角度偏轉並控制偏轉時間,以切換光的反射方向,最^ 再經由鏡頭投射呈像。由於數位光源處理投影機(DLp )需 要相當複雜的微機電機構,良率並不高,供貨仍受限制; 再加上德州儀器處於絕對的供貨優勢,價格問題也將是〜579451 V. Description of the invention (1)-[Technical field to which the invention belongs] The present invention relates to a high-performance liquid crystal projection system, and particularly to a miniaturized high-performance liquid crystal projection system. [Previous technology] With the development of projection display technology, projection systems and equipment have developed very rapidly in recent years. Lighter, smaller, and brighter liquid crystal device (Liquid Crystal Device, LCD) or digital light source (DLP, Digital Light Projector), more than the CRT projector (CRT) Projector). A digital light source processing projector (DLP) is a projector constructed using Digital Micromirror Device (DMD) components developed by Texas Instruments. Texas Instruments is currently the only supplier of DMD. It develops semiconductor processes based on its Micro Electric Mechanical System technology. At present, the latest development progress is 0.7 inches. It has a considerable advantage in reducing the size of the projector. . DLP technology completely adopts digital control. It has the advantages of high brightness, fast response time, and no noise. After the light source collects light, it focuses through the lens, passes through the RGB three-color filter, and then scans the turntable to achieve full-color effect. It is then projected onto a micro-mirror chip (DMD), which is composed of tiny micro-lenses. The angular deflection of the micro-reflection slit is generated by the driving electrode and the deflection time is controlled to switch the reflection direction of the light. . Because digital light source processing projectors (DLp) require quite complicated micro-electromechanical mechanisms, the yield is not high, and the supply is still limited; coupled with Texas Instruments' absolute supply advantage, the price problem will also be ~
第5頁 579451 五、發明說明(2) 個重要的考量 其中’液晶投影機的基本原理是利用LCD液晶模組來 調變由光源發射出來的光線。為了充分利用由光源所出射 的光線’多半採用群透鏡(lens array)與群偏振分光鏡 (polarization beam splitter array)組合而成的元件, 使原本隨機偏振的光線有效率的轉變成線性偏振光,藉以 增加光線於液晶投影機的利用效能。而液晶投 分為穿透式及反射式兩種,穿透式液晶投影機穿透式液晶 投影機内部主要的元件為液晶面板及用來分光合光的雙色 鏡。光線由一光源模組發出,經過分光的雙色鏡,將光=分 成^、G、B三種顏色,這三種顏色分別由三片液晶面板控 制調變之後,在投射鏡頭前由合光稜鏡將三種顏色合併, 再,過投影機鏡頭投影至銀幕上。由於其液晶面板的小型 化疋必然的趨勢,使得投影機也能越來越輕巧。但是隨著 液晶面板的尺寸縮小以及解析度的提高,但開口 ^將會 :而影響到光線的穿透力’造成穿透式投影機在光 利用效率上的不足。 枯卞反ί式?影機方面,又以其中反射式LCD元件為關鍵 技何,%之為反射式液晶(LCOS,Liquid Crystal on :上,11),是以金氧半導體晶片(CMOS)為電路基板,再覆 十、曰5 ,板並於其中灌注液晶。而目前“⑽反射式技術可 5疋f _巧發日寸期’未來潛力無可限量,可以有效提高亮 ^,也同時將投影機的解析度發展帶入新紀元。 儿 【發明内容】Page 5 579451 V. Description of the invention (2) Important considerations Among them, the basic principle of the LCD projector is to use the LCD module to modulate the light emitted by the light source. In order to make full use of the light emitted by the light source, most of the elements are a combination of a lens array and a polarization beam splitter array, so that the originally randomly polarized light can be efficiently converted into linearly polarized light. Thereby increasing the utilization efficiency of light in the LCD projector. There are two types of liquid crystal projectors: transmissive and reflective. Transmissive liquid crystal projectors are mainly composed of a liquid crystal panel and a dichroic mirror for splitting and combining light. The light is emitted by a light source module, and is divided into three colors of ^, G, and B through a dichroic bi-color mirror. After the three colors are controlled and adjusted by three LCD panels, they are combined by a light source before the projection lens. The three colors are combined and projected onto the screen through the projector lens. Due to the inevitable trend of miniaturization of its LCD panels, projectors are becoming more and more lightweight. However, as the size of the LCD panel is reduced and the resolution is increased, the opening will affect the penetrating power of the light ’, which will cause the light projector to have insufficient light utilization efficiency. Withered? In terms of projectors, reflective LCD elements are the key technology, and% of them are reflective liquid crystals (LCOS, Liquid Crystal on: Top, 11), and metal oxide semiconductor wafers (CMOS) are used as circuit substrates. , Said 5, and the plate is filled with liquid crystal. The current "⑽reflective technology can be 5 疋 f _ Qiaofa date inch period" unlimited potential in the future, which can effectively improve the brightness ^, and at the same time bring the development of projector resolution into a new era. [Inventive Content]
第6頁 579451 五、發明說明(3) 鑒於以上習 種高效能液晶投 Crystal 〇n Si 1 beam splitter) 增進光線的利用 為達上述目 含有:光源、偏 投射模組。本發 提供投影所需的 出的光線分光形 液晶顯示光閥則 以及用以投射第 使用效率,更可 水平偏振光以形 第一反射光束。 線,並可縮小投 迷你型和掌上型 其中,本發 整合三組光電發 極體等發光元件 均勻化裝置使其 為準直。 有關本發明 詳細說明如下: 知技術的問題,本發明的目的在於提供一 影系統,運用反射式液晶(LCOS,Liquid ic〇n)與偏振光束分光器(polarization 的組合以減少投影系統的體積架構;同時 效率。 的,本發明之高效能液晶投影系統,其包 振光束分光器、反射式液晶顯示光閥以及 明可使用非偏振光之光源,其光源係用以 光線;偏振光束分光器是用來將光源所發 成垂直偏振光與水平偏振光;第一反射式 是反射垂直偏振光以形成第一反射光束; 一反射光束的投射模組。而為了加強光的 增加一第二反射式液晶顯示光閥用來反射 成第二反射光束,再由投射模組加以投射 以此方法即可充分利用光源所提供的光 衫系統的體積架構,尤其更可廣泛應用於 的液晶投影系統。 明所使用的光源可為光電發光元件群或是 光元件作為光源,如發光二極體或雷射二 ,同時可令光源所發出的光線預先經過光 均勻化,以及在光源前加入透鏡使光線較 的特徵與實作,茲配合圖示作最佳實 施例 579451 五、發明說明(4) ------ 【實施方式】 請參考第1圖,其為本發明第一實施例的系統架構示 其系統架構包含有:三組三原色(本實施例之三原 ’、:、、、紅、綠、藍)光電發光元件群電源(丨1、1 2、1 3 )、 -光均句化裝置30、一第一反射式液晶顯示光閥(例如, 反射式液晶顯7F面板)40、一第二反射式液晶顯示光闊(例 如,^射式液晶顯示面板)41、一偏振光束分光器5〇、一 投射模組60、以及一三向分色器7〇(例如,义稜鏡或是X型 板’即X-plate)。 該等紅、綠、藍三組光電發光元件群丨2、i 3、丨4作為 光源,該三向分色器70係由第一雙向分色面鏡(dichr〇ic mi rror) 71和第二雙向分色面鏡72所組成;該第一雙向分 色面鏡71係讓綠光及藍光通過而紅光反射;該第二雙向分 色面鏡7 2則讓綠光及紅光通過而藍光為反射。 二組光電發光元件群1 2、1 3、1 4所發出的各顏色光線 通過X型板(X-plate)產生不同的行進路徑,再經過光均勻 化裝置30以得到均勻的光線;偏振光束分光器5〇是用來將 二組光電發光元件群(1 2、1 3、1 4 )所發出的光線分光形成 垂直偏振光與水平偏振光;第一反射式液晶顯示面板4 〇則 用來反射垂直偏振光以形成第一反射光束,第二反射式液 晶顯示面板4 1則是反射穿透的水平偏振光以形成第二反射 光束;其第一反射光束與第二反射光束再集中於投射模組 6 0,同樣由投射模組6 0投射第二反射光束與第一反射光束 然後聚焦在螢幕上。在X型板(X-plate)的兩片雙向分色面 579451 五、發明說明(5) 鏡與偏振光束分光器之間所碍少出 .#ΠίΓΗΤ PTPF, # 1所0又之先均勻化裝置30係可為— 光s(uGHT PIPE),该光管之厚度至少約為2公分。巧 其光:J =件群係為設有發光二極體(led)群之發 中:凡古第所示,其為綠光光源之示意圖;‘ 中顯不有以6排並聯和1G個串聯方式連接的, 粒群1 0 1,苴設置於一雷改! n Q ^ 位體日日 ιοί m: 該綠光二極體晶粒群 1 一〇1係由v線串接以形成—同色光料,並連接每一 一極體晶粒之正極接至全屬墓雷 ^ μ古八η、曾;u 屬V電片102,該電路板1〇3 —側 吞又有金屬導電片102及接地片1〇4。 後夂將上述之光源貫際結合至實施例’即如第1圖所示, 以於電路板之兩面設置紅光、藍光、綠光二極體群之 二J:兀和電路架構以形成紅、M、綠三組光源,並包含 ^罩,以匯聚來自複數個發光二極體晶粒的光源強度, ^述之各二極體群係受控於一光源控制電路200。 二I i紅ί、'«藍光、綠光二極體群各被對稱地配置於上述 雷毫米寬為8. 5毫米(mm)而其厚度為0. 8毫米(龍)的 古板M3兩側,而每一發光二極體晶粒長度約佔ιΐ 46ι = 長、寬、厚分別為η·461毫米、8 5毫米及12 =只,如第2圖中所示,發光二極體晶粒可排列在很小的 =間内(如圖中所示的各尺寸);再者,雙向分色面鏡 1 c h r 〇 i c m i r r 〇 r)之邊長,以目前之技術可做到1 3毫 f 而反射式顯示面板亦可做到1 2 · 5毫米,投射模組6 〇之 ^度可以做到15毫米(_)長度則可做到25毫米(_)'、,故藉 由本發明可達到投影裝置小型化之目的。 579451Page 6 579451 V. Description of the invention (3) In view of the above-mentioned high-efficiency liquid crystal projector (Crystal Si 1 beam splitter), improve the use of light to achieve the above purpose Contains: light source, bias projection module. The present invention provides the light splitting shape of the liquid crystal display light valve required for projection, and is used to project the first use efficiency, and can also horizontally polarize the light to shape the first reflected beam. It can reduce the size of the projector, mini and palm-type. Among them, the present invention integrates three sets of light-emitting elements such as photo-electricity emitters to make them collimated. The detailed description of the present invention is as follows: The problems of the known technology, the object of the present invention is to provide a shadow system, which uses a combination of reflective liquid crystal (LCOS, Liquid IC) and polarization beam splitter (polarization) to reduce the volume structure of the projection system. At the same time, the high-efficiency liquid crystal projection system of the present invention includes a vibration beam splitter, a reflective liquid crystal display light valve, and an unpolarized light source. The light source is used for light; the polarized beam splitter is It is used to convert the vertically polarized light and horizontal polarized light from the light source; the first reflection type reflects the vertically polarized light to form a first reflected light beam; a projection module of the reflected light beam; and in order to strengthen the light, a second reflection type is added The liquid crystal display light valve is used to reflect into a second reflected light beam, which is then projected by the projection module. This method can make full use of the volume structure of the light shirt system provided by the light source, especially the liquid crystal projection system that can be widely used. The light source used can be a photoelectric light emitting element group or a light element as a light source, such as a light emitting diode or a laser diode. The light emitted by the light source can be homogenized in advance, and the characteristics and implementation of the light can be added by adding a lens in front of the light source. The best embodiment is shown below with the illustration. 5759451 5. Description of the invention (4) ----- -[Embodiment] Please refer to FIG. 1, which shows the system architecture of the first embodiment of the present invention. The system architecture includes: three sets of three primary colors (the three primary colors of this embodiment),: ,,, red, green, and blue. Photoelectric light-emitting element group power source (丨 1, 1, 2, 1 3),-light homogenization device 30, a first reflective liquid crystal display light valve (for example, reflective liquid crystal display 7F panel) 40, a second reflective type Liquid crystal display light (for example, ^ -transmissive liquid crystal display panel) 41, a polarizing beam splitter 50, a projection module 60, and a three-way color splitter 70 (for example, Yoshida or X-shaped plate 'I.e. X-plate). The three groups of red, green and blue optoelectronic light-emitting element groups 丨 2, i 3, 丨 4 are used as light sources, and the three-way dichroic device 70 is a first two-way dichroic mirror (dichr). ic mi rror) 71 and a second two-way dichroic mirror 72; the first two-way dichroic mirror 71 Blue light passes and red light reflects; the second bidirectional dichroic mirror 72 allows green and red light to pass and blue light reflects. Two groups of photoelectric light-emitting element groups 1 2, 1 3, and 1 4 emit light of each color. X-plates are used to generate different travel paths, and then pass through the light homogenization device 30 to obtain uniform light; the polarizing beam splitter 50 is used to divide two groups of photoelectric light-emitting element groups (1 2, 1 3 , 1 4) The light emitted is split into vertical and horizontally polarized light; the first reflective liquid crystal display panel 4 is used to reflect the vertically polarized light to form a first reflected light beam, and the second reflective liquid crystal display panel 4 1 It reflects the horizontally polarized light that penetrates to form a second reflected beam; the first reflected beam and the second reflected beam are concentrated on the projection module 60, and the projection module 60 also projects the second reflected beam and the first reflected beam. The reflected beam is then focused on the screen. On the two bi-directional dichroic surfaces of the X-plate 5749451 5. Description of the invention (5) There is less interference between the mirror and the polarizing beam splitter. # ΠίΓΗΤ PTPF, # 1 and 0 are homogenized first The device 30 can be-light s (uGHT PIPE), and the thickness of the light pipe is at least about 2 cm. Qiao Qiguang: J = the group is a set of light-emitting diode (led) clusters: as shown by Van Gogh, it is a schematic diagram of a green light source; 'There are no 6 rows in parallel and 1G Connected in series, the grain group 1 0 1 is set in a thunderstorm! N Q ^ body body day ιοί m: the green light diode crystal grain group 1 101 is formed by concatenation of v lines-the same color Light material, and the positive electrode connected to each of the polar crystal grains is connected to all tomb mines ^ μ ancient eight η, Zeng; u is a V electric sheet 102, the circuit board 103-side swallowed and a metal conductive sheet 102 And grounding piece 104. Later, the above-mentioned light source is integrated into the embodiment, that is, as shown in FIG. 1, two red, blue, and green light diode groups are arranged on both sides of the circuit board. J: and the circuit structure to form red, M, green three groups of light sources, including a cover, to gather light source intensities from a plurality of light-emitting diode grains, each diode group described above is controlled by a light source control circuit 200. Two I i red, '«blue light, green light diode groups are each symmetrically arranged on both sides of the ancient board M3 with a thickness of 8.5 mm (mm) and a thickness of 0.8 mm (dragon), The length of each light-emitting diode grain accounts for about ιΐ 46ι = length, width, and thickness are η · 461 mm, 85 mm, and 12 = only. As shown in Figure 2, the light-emitting diode grains can be They are arranged in small spaces (as shown in the figure); in addition, the side length of the two-way dichroic mirror 1 chr 〇icmirr 〇r can be achieved by the current technology of 13 milliseconds and The reflective display panel can also achieve 1 2.5 mm, and the projection module 60 ° can reach 15 mm (_) and the length can be 25 mm (_) '. Therefore, the invention can achieve projection Purpose of device miniaturization. 579451
其中’该反射式液晶顯示面板(LiqUid crystal 〇n silicon, LC0S)可為黑白;當反射式液晶顯示面板為里白 時,顯示面板會分別僅顯示紅色的顯示畫面,藍色的顯示 ,面及綠色的顯示畫面。反射式液晶顯示面板可利用序列 杉色技術(Sequent ial Color Technique)顯像,該技術係 於反射式液晶顯示面板循序產生顯示紅藍綠之影像,並且 二組光電發光元件群光源係對應在紅藍綠 光、藍光和綠★,利用視覺暫留之現象使人 上為彩色之影像。 “ 以及,用以控制光源之光源控制電路,請參考第3 圖,其為本發明之光源控制電路的第一實施例示意圖。苴 光源控制電路主要包括:三間斷時脈產生器(8〇、82、84\ 及三驅動電路(800 : 820、840 );該光源控制電路係供驅 動並控制光電發光元件群,如紅光二極體晶粒群8〇丨、綠 光二極體晶粒群821和藍光二極體晶粒群841,間斷時脈 生器(80、82、84)係輪流依序產生時脈;間斷時脈產生器 (80、82、84)之輸出端係分別與驅動電路(8〇〇、82〇、 840)之輸入端電性連接,且驅動電路(8〇〇、82〇〇)之 輸出端係分別與紅光二極體晶粒群8〇1、綠光二極體晶粒 群821及藍光二極體晶粒群841電性連接,以使红、綠、該 三組光源輪流依序被點亮,g時,反射式顯示面板則依; 源^發光顏色而分別依次顯示紅、綠、藍色系之影像,且 該三色光所成之影像被投影後,藉由視覺暫留之現象在人 眼的視覺感受上為彩色之影像。Wherein, the reflection type liquid crystal display panel (LiqUid crystal ON silicon, LC0S) can be black and white; when the reflection type liquid crystal display panel is white, the display panel will only display red display screen, blue display, surface and Green display. The reflective liquid crystal display panel can be developed by the sequential color technique. This technology is based on the sequential production of red, blue and green images on the reflective liquid crystal display panel, and the two sets of photoelectric light source group light sources correspond to red. Blue-green light, blue light and green ★ make use of the phenomenon of visual persistence to make people color images. "And, for the light source control circuit for controlling the light source, please refer to FIG. 3, which is a schematic diagram of the first embodiment of the light source control circuit of the present invention. The light source control circuit mainly includes: three discontinuous clock generators (80, 82, 84 \ and three driving circuits (800: 820, 840); the light source control circuit is used to drive and control the photoelectric light-emitting element group, such as the red light-emitting diode grain group 80, the green light-emitting diode grain group 821 and blue light diode crystal group 841. The discontinuous clock generator (80, 82, 84) sequentially generates clocks in turn; the output terminals of the discontinuous clock generator (80, 82, 84) are respectively driven. The input terminals of the circuit (800, 8200, 840) are electrically connected, and the output terminals of the drive circuit (800, 8200) are respectively connected to the red light-emitting diode grain group 801 and the green light-two. The polar crystal grain group 821 and the blue diode crystal grain group 841 are electrically connected so that the three light sources of red, green, and the three light sources are sequentially turned on. When g, the reflective display panel follows; The red, green, and blue images are displayed in order, and the image formed by the three-color light is projected. The phenomenon of visual persistence is a color image in the visual perception of the human eye.
第10頁 579451 五、發明說明(7) 此外,本發明之光源控制電路可根據另一方法加以實 施,請筝考第4圖,其為本發明之光源控制電路的第二實、 施例不意圖。其光源控制電路主要包括:三直流一直Page 10579451 V. Description of the invention (7) In addition, the light source control circuit of the present invention can be implemented according to another method. Please refer to Figure 4 for the second embodiment of the light source control circuit of the present invention. intention. The light source control circuit mainly includes:
壓轉換器(221、222、223 )、一紅綠藍序控器(RGB held-sequential color „1(:Γ〇(Η3ρ1^)23〇 及三開關 (MOSFET swltch)(227、228、229 )。序控器 23〇 係令红、 綠、藍光分別輸出不同順序之時脈,請參考附件丨,豆 紅綠藍序控器之輸出時脈圖。序控器23〇之三時脈輸二 分別與三開關( 227、228、229 )之閘極電性連接;三開^ 之源極為接地,而汲極係與電阻R1之一端電性連接,盆 阻R1之另端係與紅、綠及藍光二極體晶粒群2 226 )中最後一個二極體(DU—DN)之逆向端電連接,同 接一接地電阻R2 ;直流-直流電壓轉換器(221、222 係與紅、綠及藍開關(221、222、2 23 )分設於紅光二 晶粒群224、綠光二極體晶粒群225及藍光二極體 * 226之兩端,以作為其個別之之驅動電路;再根據時、 設定驅動紅光二極體晶粒群224、綠光二極體晶粒群。5及 藍光一極體晶粒群226輪流依序發光,同時更有一“ 壓Vin分別供應電源至直流—直流電壓轉換器 ^電 223) 。 、 其光源控制電路的第二實施例之操作動作說明 紅、綠、藍光二極體晶粒群(224、225、226 ) σ卜, 片係與一直流-直流電壓轉換器電連接,以取得撗七== 的電壓,例如直流—直流電壓轉換器2 2 i連接至紅卞 而 ^ —極體 579451 五 發明說明(8) =24器22=;=光==電源,·直流-直流 终I张兩ΛΑ β ^要至、,亲先一極體日日粒群225,以供應發射 ^誃=、呆作電源;以及直流—直流電壓轉換器223連接 @^ %極體日日粒群2 2 6,以供應發射藍光所需的操作電 ί效f ί i 器23〇再根據所接收到的不同脈衝寬度,Voltage converters (221, 222, 223), a red-green-blue sequencer (RGB held-sequential color „1 (: Γ〇 (Η3ρ1 ^) 23〇 and three switches (MOSFET swltch) (227, 228, 229) 。Sequencer 23 is to make the red, green and blue light output clocks in different order respectively, please refer to the attachment 丨, the output clock diagram of the bean red green blue sequencer. Sequencer 23 3 clock 2 They are electrically connected to the gates of the three switches (227, 228, 229) respectively; the source of the three switches ^ is grounded, and the drain is electrically connected to one end of the resistor R1, and the other end of the basin resistance R1 is red and green. And the blue diode diode group 2 226), the reverse terminal of the last diode (DU-DN) is electrically connected to the grounding resistor R2; DC-DC voltage converters (221, 222 and red, green And the blue switch (221, 222, 2 23) are respectively arranged at the two ends of the red light diode group 224, the green light diode group 225 and the blue light diode * 226 as their individual driving circuits; Then according to the time, set to drive the red light-emitting diode grain group 224, the green light-emitting diode grain group. 5 and the blue light-emitting diode grain group 226 take turns to emit light in turn, and at the same time more A “Vin supplies power to the DC-DC voltage converter (electricity 223) respectively.” The operation of the second embodiment of its light source control circuit illustrates the red, green, and blue light-emitting diode grain groups (224, 225, 226). ) σ, the chip is electrically connected to the DC-DC voltage converter to obtain a voltage of 撗 ==, for example, the DC-DC voltage converter 2 2 i is connected to red 卞 and ^ —polar body 5749451. Description of the invention ( 8) = 24 器 22 =; = 光 == Power source, · DC-DC final I sheet two ΛΑ β ^ To go to, first pro-polar body-day grain group 225 to supply launch ^ 誃 =, stay power And the DC-DC voltage converter 223 is connected to the @ ^% 极 体 日 日 粒 群 2 2 6 to supply the operating power needed to emit blue light, and the device 23 〇 According to the different pulse widths received,
Βπΐ的衝的輸出頻率(CLK),以配合資料匯流排(DATA 228、2μΛ,认不斷地依序控制紅、綠、藍光的開關(227、 rR] . ,_流輸出紅光(Red)、綠光(Green)及藍光 (Blue),以達到依序控制顏色的目的。 【發明功效】 奋八提供一種新的高效能液晶投影系統架構,可以 可:用非偏:出射的光線以及減少系統的體積。其光源 如整合多组的光電發光元件群作為光 :度同ί it式液晶顯示面板的設置,可大幅提昇其 成ί直偏j光2:=所發出的光線 '經過偏振光束分光器形 平偏振光,因此可使用視場循序的方式 雖然本發明之動;^土 ♦ 以限定本發明,任何。’例揭露如上所述,然其並非用 精神和範圍内,當可ίit關技藝者,在不脫離本發明之 專利保鑊^円泪目^乍午之更動與潤飾,因此本發明之 為準。' ^ ?本說明書所附之申請專利範圍所界定者 579451 圖式簡單說明 第1圖為本發明第一實施例的系統架構示意圖; 第2圖為綠光光源之示意圖; 第3圖為本發明之光源控制電路的第一實施例示意 圖, 第4圖為本發明之光源控制電路的第二實施例示意 圖;及 第5圖為第4圖光源控制電路紅綠藍序控器之輸出時脈 圖0 【圖 式符號 說 明 ] 12 光 電 發 光 元 件 群 13 光 電 發 光 元 件 群 14 光 電 發 光 元 件 群 30 光 均 勻 化 裝 置 40 第 一 反 射 式 液 晶 顯示 面板 41 第 二 反 射 式 液 晶 顯示 面板 50 偏 振 光 束 分 光 器 60 投 射 模 組 72 二 向 分 色 器 73 第 一 雙 向 分 色 面 鏡 74 第 二 雙 向 分 色 面 鏡 80 間 斷 時 脈 產 生 器 82 間 斷 時 脈 產 生 器 84 間 斷 時 脈 產 生 器 101 二極體晶粒群The output frequency (CLK) of the pulse of Βπΐ is matched with the data bus (DATA 228, 2μΛ), and the red, green, and blue light switches (227, rR) are continuously controlled in sequence. _Stream outputs red light (Red), Green and Blue in order to achieve the purpose of sequentially controlling the color. [Effect of the invention] Fenba provides a new high-performance liquid crystal projection system architecture, which can: use unbiased: outgoing light and reduce the system The volume of its light source, such as integrating multiple groups of photoelectric light-emitting element groups as light: the same setting as the LCD display panel, can greatly improve its straight polarization j light 2: = the light emitted by the polarization beam splitting The device is flat polarized light, so you can use the sequential method of the field of view. Although the present invention moves; to limit the present invention, any. 'The example is disclosed as above, but it is not used within the spirit and scope. The artist does not depart from the patent protection of the present invention ^ 円 Tears ^ Changes and retouching at the beginning of the day, so the present invention shall prevail. ^ ^ Briefly illustrated by the scope of the patent application attached to this specification 5749451 Picture 1 The schematic diagram of the system architecture of the first embodiment is shown in Fig. 2. Fig. 2 is a schematic diagram of a green light source. Fig. 3 is a schematic diagram of a first embodiment of a light source control circuit of the present invention. Fig. 4 is a second diagram of a light source control circuit of the present invention. The schematic diagram of the embodiment; and FIG. 5 is the output clock diagram of the red, green and blue sequence controller of the light source control circuit in FIG. 4 [Illustration of Symbols] 12 Photoelectric light emitting element group 13 Photoelectric light emitting element group 14 Photoelectric light emitting element group 30 Light Homogenizer 40 First reflective liquid crystal display panel 41 Second reflective liquid crystal display panel 50 Polarized beam splitter 60 Projection module 72 Two-way color separator 73 First two-way dichroic mirror 74 Second two-way dichroic mirror 80 discontinuous clock generator 82 discontinuous clock generator 84 discontinuous clock generator 101 Diode grain group
第13頁Page 13
579451 圖式簡單說明 102 金屬導電片 103 電路板 104 接地片 200 光源控制電路 800 驅動電路 801 二極體晶粒群 820 驅動電路 821 二極體晶粒群 840 驅動電路 841 -—極體晶粒群 221 直流-直流電壓轉換器 222 直流-直流電壓轉換器 223 直流-直流電壓轉換器 227 開關 228 開關 229 開關 230 序控器 D11-DN 二極體 R1 電阻 R2 電阻579451 Brief description of the diagram 102 Metal conductive sheet 103 Circuit board 104 Ground sheet 200 Light source control circuit 800 Drive circuit 801 Diode group 820 Drive circuit 821 Diode group 840 Drive circuit 841-Polar body group 221 DC-DC voltage converter 222 DC-DC voltage converter 223 DC-DC voltage converter 227 Switch 228 Switch 229 Switch 230 Sequencer D11-DN Diode R1 Resistor R2 Resistor
第14頁Page 14
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US7773303B2 (en) | 2006-02-16 | 2010-08-10 | Coretronic Corporation | Image projecting apparatus |
US7775668B2 (en) | 2007-04-10 | 2010-08-17 | Industrial Technology Research Institute | Color-mixing laser module and projectors using the same |
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US7773303B2 (en) | 2006-02-16 | 2010-08-10 | Coretronic Corporation | Image projecting apparatus |
US7775668B2 (en) | 2007-04-10 | 2010-08-17 | Industrial Technology Research Institute | Color-mixing laser module and projectors using the same |
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