LCM测试信号系统简介ppt课件

.,TestingFollowonLCM,.,WhatistheoutlineOLBprocess,LCDPanel,LCDPanel,DualEdge,SingleEdge,.,WhatistheOutlinePCBprocess,.,StructureofTFT-LCD,.,Whatispurposespecialtestpattern,.,WhatisSpecificationoftheProductionName:Type:Power:SignalType:Resolution:Area:CellType:,14.1“,15”,17“,17.4”,18“,5v,3.3v,12v,LVDS,TTL,DVI,D_sub,SVGA,XGA,SXGA,SXGA+,UXGA,800 x600,1024x768,1280 x1024,1400 x1050,1600 x1200.,MVA,TN,Module,Monitorset,.,WhatpurposeisonthetestingStation,PCBI:ChecksomedefectlikePCBAFunctionAfterOLB&PCBbondingprocess.AAFC:AfterAssemblyFunctionCheckwhichchecksomedefectsafterassemblyandadjustflickerontheLCMAging:Providehightemper50C4hrs,UsingtheconditiontotestthereliabilityonthePanel.Cken:FinalCheckandjudgetheGradeonthepaneltheyarebaseonPCBasePatternGenerator.,.,PCBasePatternGenerator,BaseOnPersonalComputerGeneralLowCostPatternEditandProgramiseasy,優點,.,FunctionBlockofthePCBaseP/G,PC,ControlPanelDisplayCard,待測PanelsDisplayCard,A/DD/ACard,ControlTerminal,待測Terminal,PowerBoard,Panellink2LVDS,.,PanellinktoLVDSFunctionBlock,.,DataCommunicationsType,TTL(TransistorTransistorLogic)LVDS(LowVoltageDifferentialSignal)TMDS(TransitionMinimizedDifferentialsignal),.,WhatisTMDS?,TransitionMinimizedDifferentialSignalintroduction1.TMDSlinkisusedtosendgraphicdatatoomonitor.2.Use3differentialdatapairswithtimingandcontroldataembeddedindatatransmission3.Uselow-swingdifferentialvoltage,.,TMDSLogicalArchitecture,CompressRate:10Times.CompressMethod:Tx0:R0:7,Hsync,VsyncTx1:G7:0,CTL1,PLL_syncTx2:B7:0,CTL2,3,.,AlloftheSchemeonTMDSField,.,WhatisLVDS?,ThefeatureofLVDS1.DifferentialFanout2.LowSwingGoodForDesign1.LongCommutationDistance2.Goodnoisedefense3.LowPowerconsumption,.,DataCommunicationsofLVDS,CompressTypeCompressRate:7timesitisbe.TX0:R0R5,G0TX1:G1G5,B0,B1TX2:B2B5,H_snyc,V_snyc,DE.as6bitdatatransmitterTX0:R0R5,G0TX1:G1G5,B0,B1TX2:B2B5,H_snyc,V_snyc,DETX3:R6,R7,G6,G7,B6,B7,X.as8bitdatatransmitter,.,WhatisEDID?ExtendDisplayIdentificationDataStandard,PurposeItisbuildonVESAstandardtodefinetheDisplayfiled.TheOriginalEDIDStructuredefinitionfromDDCStandard.DataformatVendor/ProductIdentification/EDIDVersion/BasicDisplayParameters/Features/Established/StandardTiming/DetailTiming/ExtensionFlag/ChecksumDataCommunicationMethodDisplaycardgetDatafordisplayingbySM_BusprotocolWhatisimproveontheLCMTestingDept.,.,TimingListonVESA,.,Resolution&RefreshRate,fH(水平更新頻率):重複顯示一條線Line的頻率fV(垂直更新頻率)orFramerate:重複顯示一畫面的頻率Dotclock:重複顯示一點的頻率,.,TheStructureofDisplay,.,HowtoCalculatetheDotClock,DotCLK=H_Total*V_Total*FrameRateH_Total=HA+HFP+HSO+HBPV_Total=VA+VFP+VSO+VBPFrameRate:Refreshrate,.,DetailTimingDefine,.,HowtoDefinetheCo