SAMSUNG-AMOLED介绍.ppt

Introduction,DisplayCategoryOLEDvs.LCDAMOLEDvs.PMOLEDTopEmissionvs.BottomEmissionAMOLEDDeviceOperationofAMOLEDStructureofAMOLED,CRT(CathodeRaytube),LCD(LiquidCrystalDisplay),PDP(PlasmaDisplayPanel),VFD(VacuumFluorescentDisplay),FED(FieldEmissionDisplay),DLP(DigitalLightProcessing),DISPLAY,Self-emissive,Light-inducingorreflecting,OLED(OrganicLightEmittingDiode),Displaycategorybylightsource,LCoS(LiquidCrystalonSilicon),DisplayCategory(1),Displaycategorybydrivingmethod,LCoS(LiquidCrystalOnSilicon),PMOLED(OrganicLightEmittingDiodes),DLP(DigitalLightProcessing),AMOLED(OrganicLightEmittingDiodes),CRT(CathodeRayTube),VFD(VacuumFluorescentDisplay),FED(FieldEmissionDisplay),PDP(PlasmaDisplayPanel),AMLCD(LiquidCrystalDisplay),a-SiTFT(a-SiThinFilmTransistor),TFD(ThinFilmDiode),P-SiTFT(p-SiThinFilmTransistor),TN(TwistedNematic),STN(SuperTwistedNematic),FLC(FerroLiquidCrystal),ActiveMatrix,PMLCD(LiquidCrystalDisplay),DISPLAY,PassiveMatrix,DisplayCategory(2),LiquidCrystal,BacklightUnit,ColorFilter,Glass,Polarizer,Glass,Glass,Glass,Polarizer,LCD,OLED,Polarizer,ACVoltage,DCCurrent,OLEDvs.LCD,TopEmission(A),BottomEmission(B),PMOLED,AMOLED,AorBispossible.Aismoreadvancedtechnology,AMOLEDvs.PMOLED(1),AMOLEDvs.PMOLED(2),DATADRIVER,SCANDRIVER,PMOLEDDriving,DATADRIVER,SCANDRIVER,Vdd,AMOLEDDriving,Itrequiresmoreadvancedprocesstechnologyandknow-howtoproducetopemissionAMOLEDthanbottomemissionAMOLED.,Emissionarea,Circuitarea,Dataline,Anode,Cathode,Glass,Glass,Emissionarea,Scanline,Bottomemission,Topemission,TopEmissionvs.BottomEmission,SMDsAMOLEDTechnologyisbasedonColorPatterning:R,G,BindividuallyevaporatedEmissiontype:TopemissionBackplane:LTPS,Emissionarea,Circuitarea,Scanline,Dataline,ConceptualImage,SMDsAMOLEDTechnology,Excitons,BasicOperationMechanismOLEDdeviceconsistsofseveralfunctionalsub-layers.HolesfromAnodeandElectronsfromCathodemeetatEMLandformExcitonswhichradiatelight.ThecolorisdeterminedbytheEMLlayer.,-,+,AMOLEDDevice(1),CharacteristicsofOLEDTheElectricModelofOLEDconsistsofDiode+CapacitorElectricalcharacteristicofOLEDissimilartodiodeinforwardbiasconditionTheluminanceintensitiesareproportionaltothecurrentIntensities,AMOLEDDevice(2),(1)L-Icurves,LightIntensityControl(1)Theluminanceintensitiesareproportionaltothecurrentintensities(2)Thecurrentintensitiescanbecontrolledbyvoltagelevels(3)therefore,wecancontroltheluminanceintensitiesbyvoltagesettings(Voltageprogrammeddriving),Diodelike.,(2)I-Vcurves,(3)L-Vcurves,AMOLEDDevice(3),Basicstructure:2TR+1cap.,Id=(k/2)(Vgs-Vth)2DrivingTRshouldbedriveninsaturationmodeforstablecurrentandluminescenceofthedeviceForlowpowerconsumption,Vtr_max&Vel_maxshouldbeminimized,SwitchingTR,DrivingTR,DataLine(Vdata),ScanLine,Cst,Vanode,EL,Vcathode,Vtr,Vel,Vds,Ids,Vtr,Vel,OperationofAMOLED,Analog,Logic,3:1Demux,Emissiondriver,DC-DCconverter,3.8V(VBattery),ELVDD,ELVSS,VCI,VCC,ScanDeriver,OLED,material,ELCapacitor,Cathode,(2)Scan/Emissiondriver,(1)AMOLEDpixelarray,(3)DriverIC,(4)DC-DCConverter,Anode,VCCIO,DisplayData,SPI,(5)FPCB,StructureofAMOLED,FeaturesofAMOLED,WideColorGamutHighContrastImageQualityFastResponseTimeThinFormFactor,VividColor,HighContrast,BetterSunlightReadability,OutstandingLuminescence,FastResponse,FreeViewingAngle,SlimFormFactor,FeaturesofAMOLED,ColorgamutofTFT-LCDdropsbychangesingraylevels.InAMOLED,colorgamutmaintainsover100%colorgamutregardlessofthechangeingrayscale.,AMOLED:112%109%TFT-LCD:81%(100%GrayScale)16%(10%GrayScale),AMOLED,112%109%(Nochange),112%100%gray,109%10%gray,TFT-LCD,81%(at100%graylevel)16%(at10%graylevel),16%10%gray,81%100%gray,TFT-LCD:LTPSASVLCD(Model:812SH),50%,35%,25%,15%,WideColorGamut,TFT-LCDscontrastratiodropswithchangeinviewingangle-InAMOLED,measuringviewingangleisnotnecessary.,TFT-LCD,1,000:1,30,000:1,AMOLED,HighContrast,AMOLEDisperceivedtobeabout100150cd/m2brighterthanTFT-LCD,“Helmohltz-KohlrauschEffect”and“Bartleson-BrenemanEffect”,TFT-LCD,AMOLED,TFT-LCD,AMOLED,300cd/,300cd/,300cd/,400450cd/,=,SuperiorImageQuality,HKEffectstatesthatadisplaywithwidercolorgamutappearstobebrighterthanadisplaywithsmallercolorgamut,Contoursof“Brightness-to-LuminanceRatio”Constant,100,50,0,107%,75%,104%,98%,54%,11%,GrayScale,NTSCRatio,100,50,10,%,%,Ref)PerceivedBrightnessHKEffect,Inaddition,AMOLEDisperceivedtobebrighterthanTFT-LCDduetoitshighercontrast*“Bartleson-BrenemanEffect”:Anopticalillusionofperceivedcontrastappearswhenimageisviewedagainstalightordarkbackground.,AMOLEDachievescontrastof10,000:1becauseitcanexpresstrueblackcolorfromitspixel,Ref)PerceivedBrightnessBBEffect,HighC/R&LargeColorGamutSuperiorOutdoorReadability,TFT-LCD,AMOLED,30,000lux,OutdoorReadability,EvaluationofOutdoorReadability,Overallcomparison,Evaluationcondition-.Outdoorlightingbrightness:35,000lx-.Totalnumberofobservers:n=22Scoringmethod-.Observersrankedthedisplayinordertoperformanceandselectbest3displays.-.1strankeddisplaygot3points,2ndrankeddisplaygot2points,3rdrankeddisplaygot1point.,500cd/m2OLEDrankedasthebestofalldisplaysinoutdoorreadability.,2.2”qVGA,LTPS-LCD,TF,200cd/m2,3.0”wVGA,VA-LCD,TF,315cd/m2,2.6”qVGA,AMOLED,Emissive,180cd/m2,2.2”qVGA,VA-LCD,TF,225cd/m2,2.6”qVGA,AMOLED,Emissive,300cd/m2,2.2”qVGA,ISP/AFFS-LCD,TM,550cd/m2,2.2”qVGA,TN-LCD,TM,940cd/m2,2.5”qVGA,TN-LCD,TM,860cd/m2,2.6”qVGA,AMOLED,Emissive,500cd/m2,ResponsetimeofTFT-LCDchangeswithchangeintemperature.,-InAMOLED,measuringresponsetimeisnotnecessary.,LCDsSpecifications,FastResponseTime,ViewingAngle,%,ViewingAngle,%,ViewingAngle,AMOLED,AMOLEDisalmostindependentontheviewingangle.AMOLEDssuperiorcontrastratiodoesnotdiminishdependingontheviewingangle.,Realpictures,400:1,10:1,10,000:1,8,0009,000:1,TFT-LCD,WideViewingAngle,AMOLEDsthinandleanmodulestructureallowssignificantedgeinproductdesign.,ThinFormFactor(1),(mm),Sealant(0.01t),*Thevalueofthicknessdependsonthemechanicalrelianceandsize,etc.,0.76,ThinFormFactor(2),AMOLEDdoesnotmakingtheaudiblenoise.,Noiselevel:22.2dB(Increasing3.6dB)Panelandcapacitormakestheaudiblenoise.,Noiselevel:19.4dB(Increasing0.8dB)NoPanelaudiblenoise,Hz,Pa,Hz,Pa,TFT-LCD,AMOLED,ZeroAudibleNoise,Basedon2inch,20M,2.2”,DisplaySize,QVGA,Resolution,46mWh,AMOLED,274mWh,PowerConsumption,TFTLCD,Materials,Power,AMOLEDis6timesmoreefficientthanTFT-LCDtoplaymovie“300”.ReducingCO2,EcoDisplay,StructureofAMOLED,ModuleStructurePixelArrayScanDriverDriveICDCDCIC,Analog,Logic,Demux,Emissiondriver,DC-DCconverter,3.8V(VBattery),ELVDD,ELVSS,VCI,VCC,ScanDeriver,OLED,material,ELCapacitor,Cathode,(2)Scan/Emissiondriver,(1)AMOLEDpixelarray,(3)DriverIC,(4)DC-DCConverter,Anode,VCCIO,DisplayData,SPI,(5)FPCB,AMOLEDConceptualStructure,AMOLEDpixelarrayRowscanlineColumndatalineELVDDforcurrentsourceineachpixelSwitchinganddrivingTRforeachpixel,SwitchingTR,DrivingTR,SCANn-1,SCANn,SCANn+1,Data,m-1,Data,m,Data,m+1,ELVDD,ELVSS,ConceptualImage,ELVSS,ELVSS,PixelArray,Scandrivermakesasequentialenablepulseforpixelprogramming,scan1,scan2,scan3,Scandrivercircuit,scan318,scan319,scan320,scan1,scan2,scan3,scan319,scan320,Emissiondriveronpanelissimilartothescandriver,ScanDriveonPanel,DC-DCBooster,ReferenceVoltageGenerator,osc,HostInterface(RGB,CPU,MDDI.),SourceDriver,ABCACLSIA,Gate