LCD-驅(qū)動IC原理簡介

OutlineIntroductionofLCDDrivingTheoryTN/STNLCDDriverAM-LCDGateDriverAM-LCDSourceDriverAM-LCDDriverDesignConsideration第一頁，共45頁。LC&LCDTypeLiquidCrystalSemecticLCNematicLCCholestericLCDiskLCLiquidCrystalDisplayTwistNematic(TN)SuperTwistNematic(STN)Double-layerSTN(DSTN)FilmSTN(FSTN)

InPlaneSwitch(IPS)VerticalAlignment(VA)Multi-domainVA(MVA)第二頁，共45頁。LCDDrivingTheory–TNtype第三頁，共45頁。TN&STNV-TTransferCurve第四頁，共45頁。StaticDrivingMethodUsedinTN第五頁，共45頁。StaticDrivingExample第六頁，共45頁。STNLCDDrivingDiagram第七頁，共45頁。STNLCDDrivingWaveformDiagramColumn1暗亮亮第八頁，共45頁。LimitationonSTNLCDResolution=>SelectionRatio=>N=>SR第九頁，共45頁。MultiplexAddressingMethodPulseAmplitude電位皆為正製程較容易第十頁，共45頁。MultiplexAddressingBlock第十一頁，共45頁。FrameRateControl--TemporalDithering第十二頁，共45頁。FrameRateControl–SpatialDithering第十三頁，共45頁。FrameRateControl–PWM變快,難做第十四頁，共45頁。CrosstalkofSTNLCD(1)--StripeShadowingsegmentcommon*Pixel=common-segment*commonsegment第十五頁，共45頁。CrosstalkofSTNLCD(2)--BlockShadowing第十六頁，共45頁。ScopeofSTNDriverAll-in-OneLCDDriverChipLowPowerConsumptionforMobilePhoneApplicationProgrammableVoltageforDifferentTypePanelandSystemApplication4.StableReferenceOutputforDifferentTemperatureCoefficients第十七頁，共45頁。PowerManagementofSTNDriver第十八頁，共45頁。TFTLCDOperationArchitecture產(chǎn)生timing第十九頁，共45頁。VideoSignalTimingSpecification第二十頁，共45頁。VideoSignalTimingSpecification第二十一頁，共45頁。TFTLCDPixelSchematic--CsonCommonClc:第二十二頁，共45頁。TFTLCDPixelSchematic--CsonGate第二十三頁，共45頁。GatePulseTransmissionDelay第二十四頁，共45頁。LCDGateDriverBlockDiagram--2-levelDI/OCLOCK256/263Outputenable第二十五頁，共45頁。2-LevelGateDriverTimingDiagramStartpulseWhenOE=HOUT=LWhenXAO=LOUT=H第二十六頁，共45頁。LCDGateDriverBlockDiagram--3-levelYV1YV2YV3第二十七頁，共45頁。3-LevelGateDriverTimingDiagram第二十八頁，共45頁。GateCellCross-coupling--CsonCommon第二十九頁，共45頁。GateCellCross-coupling--CsonGate第三十頁，共45頁。TFTLCDDrivingMethod第三十一頁，共45頁。ComparisonofPowerConsumption第三十二頁，共45頁。DirectDriving第三十三頁，共45頁。ACModulationDriving第三十四頁，共45頁。LCDSourceDriverBlockDiagram極性Gama電壓R10toR17/R20toR27G10toG17/G20toG27B10toB17/B20toB27第三十五頁，共45頁。SourceDriverTimingDiagram第三十六頁，共45頁。HorizontalCrosstalk(1)第三十七頁，共45頁。HorizontalCrosstalk(2)第三十八頁，共45頁。Frame/LineInversionChargingPath亮暗V大V中V小第三十九頁，共45頁。Column/DotInversionChargingPathVcancelVcancelVcancel第四十頁，共45頁。ComparisonofAddressingMethod第四十一頁，共45頁。SourceDriverStructure--Digital第四十二頁，共45頁。SourceDriverConsiderationPerformanceRequirement:OutputAccuracy(6bits?8bits?ormore?)PowerConsumption(portable?)DieSize(Cost!)第四十三頁，共45頁。HighAccuracyResistorStringDigitalMethodtoReducePowerPowerArrangementReduceDecoderSizeOutputStructuretoReduceC