投影机基本介绍-Seminar-on-Fundamental-DLP-Optical-Engine--jarder--071505课件.ppt

1、 2002 PTCWe Power Projection DisplayStrictly ConfidentialSeminar on Fundamental DLP Optical Engine07/15/0511/8/2022 2002 PTC2We Power Projection DisplayStrictly ConfidentialAgenda 1.Optical Path 2.Component Function 3.SmoothPictureTM Module 4.DynamicBlackTM Module 5.Factors of influencing light effi

2、ciency,dark level,overfill 6.BrilliantColor Algorithm 11/8/20222 2002 PTC3We Power Projection DisplayStrictly ConfidentialFront vs.Rear Projection11/8/20223 2002 PTC4We Power Projection DisplayStrictly ConfidentialRPTV11/8/20224 2002 PTC5We Power Projection DisplayStrictly ConfidentialVideo Wall11/8

3、/20225 2002 PTCWe Power Projection DisplayStrictly ConfidentialOptical Path11/8/2022 2002 PTC7We Power Projection DisplayStrictly ConfidentialOptical Path I(Non-telecentric System)優點缺點輸出光效率最高的一種架構DMD 的Overfill值為最大的，造成的光損耗使用最少光學元件的一種架構,最節省成本的一種架構以大角度入射至DMD，因此螢幕之均勻度不佳沒有許多專利的限制螢幕偏移量是固定的用於前投影系統11/8/2022

4、7 2002 PTC8We Power Projection DisplayStrictly ConfidentialOptical Path II(TIR-Prism System)優點缺點可用於前投影及背投影系統稜鏡在大角度的穿透率不高以小角度入射至DMD，因此螢幕之均勻度最佳稜鏡容易造成雜散光進入鏡頭可以控制螢幕上的偏移(offset)值有專利權利金問題DMD 的Overfill值為最小的，免去許多由於Overfill所造成的光損耗11/8/20228 2002 PTC9We Power Projection DisplayStrictly ConfidentialOptical Pat

5、h III(Field Lens System)優點缺點這種架構的光路設計為最短場鏡會造成螢幕上有鬼影，降低對比場鏡縮小光入射至DMD的角度，改善Overfill過大的情形而增加了光效率須將照明與成像系統一起設計，造成設計時的複雜度及困難度可用於前投影及背投影系統螢幕偏移量是固定的有專利權利金問題11/8/20229 2002 PTC10We Power Projection DisplayStrictly ConfidentialOptical Path VI(Reverse TIR-Prism System)11/8/202210 2002 PTC11We Power Projection

6、 DisplayStrictly ConfidentialOptical Path V(Tilted-DMD optics)YM67-regular DMD plane (1 Plastic+10 Glass)YM67T-tilted DMD plane (1 Plastic+10 Glass)TIR 2nd plane=tilted-0.4 DMD plane=tilted+0.2 shift 0.06mm G1G2G3 G4G5 G6G7 G8 G9G10 G11 G1G2G3 G4G5 G6G7 G8 G9G10 G11 TIR DMD TIR DMD v YM67 is totally

7、 same as YM67T,except of tilted-TIR and tilted-DMD in illumination system.v This example is for the configuration of 68.421”screen.11/8/202211 2002 PTCWe Power Projection DisplayStrictly ConfidentialComponent Function11/8/2022 2002 PTC13We Power Projection DisplayStrictly ConfidentialLamp FunctionHi

8、gh Efficiency-Small Arc:1 mm arc gap up to 200WSmall power range-80W 300WLong Life-1000hr.10,000hr.Lacking red in spectrum11/8/202213 2002 PTC14We Power Projection DisplayStrictly ConfidentialUV-IR FunctionUVIR可見光可見光燈泡發出光線燈泡發出光線UVIR可見光可見光UVIR可見光可見光燈泡發出光線燈泡發出光線Tilt UVIR to prevent the light from hitt

9、ing the tip of lamp 11/8/202214 2002 PTC15We Power Projection DisplayStrictly ConfidentialColor Wheel Function色輪包含有三個(或以上)之不同顏色區塊，每一區塊利用其鍍膜特性只讓某特定顏色通過。通常將此色輪置於燈源聚焦處，當光線通過時，會讓紅、綠、藍光依序通過，而產生連續之三色色場。11/8/202215 2002 PTC16We Power Projection DisplayStrictly Confidential Bearing(Porous Material)ShaftClea

10、rance(Seeped Oil)Oil reservoirFig.1 URDURD MotorADB MotorMotor Function11/8/202216 2002 PTC17We Power Projection DisplayStrictly ConfidentialProposed 4x CW Spec by ADB MotorlOutside Diameter:55mm,65mm lInner Diameter:37mmlClear Aperture:8.25mm(55mm),13.25mm(65mm)l68dBA(55mm,14,400 rpm)l70 dBA(65mm,1

11、4,400 rpm)lNoise will be measured with a meter aligned with the Color Wheel at a distance 4cm.Clear Aperture65(55)CAMax.Chip4X C.W.Mechanical Drawing11/8/202217 2002 PTC18We Power Projection DisplayStrictly ConfidentialDVE Color Wheel(1)(1)6 Segment 變成變成 7 Segment(2)44mm 變成變成 55 mm暗部分暗部分 Noise變少變少11

12、/8/202218 2002 PTC19We Power Projection DisplayStrictly ConfidentialDVE Color Wheel(2)Frame(60 Hz)Subframe 1Subframe 2light100%50%0%Ballast Type(1)PEC:WS-1(2)Philips:VIDI(3)OSRAM:UniShape11/8/202219 2002 PTC20We Power Projection DisplayStrictly ConfidentialRod Function(1)產生均勻化的光，照射至光閥面板，經光閥面板反射 (2)後

13、，才會使投影螢幕上之亮度均勻(3)(2)將光源之形狀轉換，因為一般光源形狀大多是圓形的，但影像來源光閥面板之形狀卻大多是方形的 11/8/202220 2002 PTC21We Power Projection DisplayStrictly ConfidentialRod Merit/Demerit優點缺點成本較低反射率較低，R(avg)=98%機構組裝比較容易ROD的黏膠，容易因為太熱而垮掉灰塵不會成像在螢幕上ROD截面不容易製作成任何形狀Hollow Rod優點缺點利用全反射原理，可以讓ROD反射率達到100%ROD出口端若有灰塵，會在螢幕上看見因為是實心的ROD，不會因為太熱而垮掉因為

14、要達成全反射，造成機構組裝不易ROD截面容易製作成任何形狀ROD使用一段時間，容易積灰塵，造成反射率下降成本較高Solid Rod11/8/202221 2002 PTC22We Power Projection DisplayStrictly ConfidentialCondenser&Relay Lens Function(1)聚光透鏡(condenser)的功能，是要將Rod出口端的發散光，聚成準直或收斂光。(2)接續光透鏡(relay lens)的功能，是要將光線接續至光閥面板的位置。CondenserRelay LensDMD(Image)Rod Output(Object)11/8

15、/202222 2002 PTC23We Power Projection DisplayStrictly ConfidentialDMD Function數位微形反射鏡元件是一種微機電(micro-electrical mechanical systems,MEMS)式的空間光調變器(spatial light modulator,SLM)，每個像素都是一面微小的金屬面鏡，而每個微面鏡有兩種位置，一個是將光線反射到投影鏡頭的亮狀態(ON state)，另一個則是將光線偏離投影鏡頭的暗狀態(OFF state)，也就是說它是個二元開關 11/8/202223 2002 PTC24We Powe

16、r Projection DisplayStrictly ConfidentialNew Name&DLP Gen.New NameOld NameStart DateDigital ASICAnalog ASICsFPGARecommended Lamp/CW.55”720PHD41Q05DDP1011DAD1000(+Allegro)YesSmooth Picture II+Dynamic ColorAll Lamps/7 Segment CW.85 1080PxHD41Q052x DDP1011DAD1000(+Allegro)YesSmooth Picture II+Dynamic C

17、olorAll Lamps/7 Segment CW.45”720PHD51Q06DDP3021DAD2000/PMD1000None(Featuresincluded in 3021)Modulated Lamp/6-10 segments.65”1080PxHD51Q06DDP3021DAD2000/PMD1000None(Featuresincluded in 3021)Modulated Lamp/6-10 segments.85”1440PsxHD51Q062x DDP3021DAD2000/PMD1000YesModulated Lamp/6-10 segmentsTI proje

18、ct leaderDLP Team membersHD5 projectFrank PoradishDavis,Carl -DLP team leaderxHD5 projectGary SextroScott Dewald-Optics support for.45 720p,.65 1080p and.85 1440psxHD5Gary SextroSteve Smith-Mechanical support for.65 1080p and.85 1440pMatt Hine-Mechanical support for.45 720p11/8/202224 2002 PTC25We P

19、ower Projection DisplayStrictly ConfidentialPixel Pitch DimensionsHD5/xHD5HD4/xHD411/8/202225 2002 PTC26We Power Projection DisplayStrictly ConfidentialIllumination MethodHD5/xHD5HD4/xHD411/8/202226 2002 PTC27We Power Projection DisplayStrictly ConfidentialProjection Lens Function將DMD上的影像投影至螢幕，以供觀眾欣

20、賞，其必須滿足高解析度、高穿透率和無像差失真等要求 11/8/202227 2002 PTCWe Power Projection DisplayStrictly ConfidentialSmoothPictureTM Module11/8/2022 2002 PTC29We Power Projection DisplayStrictly ConfidentialAdvantage of SP Module11/8/202229 2002 PTC30We Power Projection DisplayStrictly ConfidentialMechanisms of SmoothPict

21、ureTM Technology1.Reflective type for“periscope-style”projection lens with a moving fold mirror,which is 3-mm thickness and only has to move 0.014 degrees.(TIs design)2.Transmissive type for both“straight”and“periscope-style”projection lens.A moving plate glass,which is 3-mm thickness and has to mov

22、e 0.5 degrees,is inserted in-between prism and projection lens.(=YOIs design)11/8/202230 2002 PTC31We Power Projection DisplayStrictly ConfidentialTransmissive SP Module3-mm glassVoice coil actuatorBase11/8/202231 2002 PTC32We Power Projection DisplayStrictly ConfidentialReflective SP Module3-mm fol

23、d mirrorFeedback sensor and IOActuator base11/8/202232 2002 PTC33We Power Projection DisplayStrictly Confidential2nd-Generation SP Module(1)MP in Oct.200511/8/202233 2002 PTC34We Power Projection DisplayStrictly Confidential2nd-Generation SP Module(2)MagnetCoilYokeHingeResonant frequency 500 HzVCMse

24、nsorMirrorYOI 1st R-SPResonant frequency 255 HzYOI 2st R-SP11/8/202234 2002 PTCWe Power Projection DisplayStrictly ConfidentialDynamicBlackTM Module11/8/2022 2002 PTC36We Power Projection DisplayStrictly ConfidentialRich Detailed Blacks5000:1 Contrast11/8/202236 2002 PTC37We Power Projection Display

25、Strictly ConfidentialDynamicBlack Aperture and Servo11/8/202237 2002 PTC38We Power Projection DisplayStrictly ConfidentialDynamicBlackTM Module 1st GenerationBl IFMagnetic flux directionCurrent flux directionAperture movementdirectionMP now =for xHD4 11/8/202238 2002 PTC39We Power Projection Display

26、Strictly ConfidentialDynamicBlackTM Module 2st New GenerationMagnetic Flux DirectionCurrent Flow DirectionAperture Movement DirectionMP in Dec.2005 =for xHD5 11/8/202239 2002 PTC40We Power Projection DisplayStrictly ConfidentialDynamicBlackTM Module ComparisonNoCompared ItemsDB-1DB-21Dimension(WDH)M

27、ax.67.1mm37.1mm59.7mmMax.48mm38.4mm47mm,Min.32mm32mm47mm2Weight140gMost parts is plasticizing,weight will be decrease Much.3Structure DesignSingle edge locking(Interface from DB to lens),need strong material for bracket.More robust cubic mechanical design.4VCM DesignSeparate magnetic field at same p

28、lane design,larger space requirement for coilless efficiency coil available ratio.Sandwich type VCM design,more efficiency coil available ratio.5Power ConsumptionPavg:1.8W,Peak current:0.8A 15o operation.Lighter aperture based design,lower torque requirement for same performance as DB-1.(Estimate 50

29、%off)11/8/202240 2002 PTC41We Power Projection DisplayStrictly ConfidentialFactors of Influencing Light EfficiencyItem(Base on HD5 design data)EfficiencyTIR-PrismField LensOSRAM 120W E23 1.3arcSphere lumen(typical)74897489Simulation Collection Efficiencyfrom lamp to DMD48%48%Integrator RodReflectivi

30、ty(0.9954.2)98%98%UV-IR filterTransmittance97%97%Lens 3(Glass)Transmittance99%99%Lens 2(Glass)Transmittance99%99%Fold Mirror#1Reflectivity97%97%TIR-Prism Lens 1:PlasticField-Lens Lens 1:GlassTransmittance97%99%TIR-Prism Input portionTransmittance99%Field Lens Input portion99%Illunmination System Com

31、parison100%102%Color Wheel EfficiencyG54R68B58(6x)19%19%DMD Efficiency68.5%68.5%Simulation Collection Efficiencyfrom DMD to Screen88%88%TIR-Prism Output portionTransmittance91%Efficiency Gain from tilt angle=0 deg105%Field Lens Output portionTransmittance99%Projection LensTransmittance95%95%Image Sy

32、stem Comparison100%104%Fear Factormechanical tolerance95%95%Total Lumen on Screen306324Total Lumen Comparison on Screen100%106%Illumination system PartImage System Part11/8/202241 2002 PTC42We Power Projection DisplayStrictly ConfidentialFactors of Influencing Dark LevelDiffraction from DMD Structur

33、eFlat-State Light11/8/202242 2002 PTC43We Power Projection DisplayStrictly ConfidentialFactors of Influencing OverfillDifferent optical path cause different Overfill sizeField Lens Optical PathTIR-Prism Optical PathNon-telecentric Optical Path11/8/202243 2002 PTC44We Power Projection DisplayStrictly ConfidentialBrilliantColor Algorithm11/8/202244 2002 PTC45We Power Projection DisplayStrictly ConfidentialExample Images(RY(35)GW(55)B color wheel)SLRBrilliantColor11/8/202245