LCM测试信号系统简介

LCM测试信号系统简介第一页，共24页。TestingFollowonLCMOLBCKenPCBPCBIOQCDispenserAssemblyAAFCAgingDKenPacking出貨第二页，共24页。Whatistheoutline@OLBprocessLCDPanelLCDPanelDualEdgeSingleEdge第三页，共24页。外部信號ControlBoardWhatistheOutline@PCBprocess第四页，共24页。StructureofTFT-LCD偏光板TFT框膠TABDriverLSI擴散板Spacer分光片反射板側光偏光板畫素電極儲存電容液晶配向膜共通電極overcoatColorfilterBlackmatrix玻璃基板Printedcircuitboard菱鏡板第五页，共24页。Whatispurposespecialtestpattern第六页，共24页。WhatisSpecificationoftheProductionName:Type:Power:SignalType:Resolution:Area:CellType:14.1“,15”,17“,17.4”,18“5v,3.3v,12vLVDS,TTL,DVI,D_subSVGA,XGA,SXGA,SXGA+,UXGA800x600,1024x768,1280x1024,1400x1050,1600x1200….MVA,TNModule,Monitorset第七页，共24页。WhatpurposeisonthetestingStationPCBI:ChecksomedefectlikePCBAFunction…AfterOLB&PCBbondingprocess.AAFC:AfterAssemblyFunctionCheckwhichchecksomedefectsafterassemblyandadjustflickerontheLCMAging:Providehightemper50°C4hrs,UsingtheconditiontotestthereliabilityonthePanel.Cken:FinalCheckandjudgetheGradeonthepaneltheyarebaseonPCBasePatternGenerator…….第八页，共24页。PCBasePatternGeneratorBaseOnPersonalComputerGeneralLowCostPatternEditandProgramiseasy優點第九页，共24页。FunctionBlockofthePCBaseP/GPCControlPanelDisplayCard待測Panel’sDisplayCardA/DD/ACardControlTerminal待測TerminalPowerBoardPanellink2LVDS第十页，共24页。PanellinktoLVDS

FunctionBlockEDIDTMDSReceiveLVDSTransmitterTTLTMDSLVDSSDASCK第十一页，共24页。DataCommunicationsTypeTTL(TransistorTransistorLogic)LVDS(LowVoltageDifferentialSignal)TMDS(TransitionMinimizedDifferentialsignal)第十二页，共24页。WhatisTMDS?TransitionMinimizedDifferentialSignalintroduction

1.TMDSlinkisusedtosendgraphicdatatoomonitor.2.Use3differentialdatapairswithtimingandcontroldataembeddedindatatransmission

3.Uselow-swingdifferentialvoltage

第十三页，共24页。TMDSLogicalArchitectureCompressRate:10Times.CompressMethod:

Tx0:R[0:7],Hsync,VsyncTx1:G[7:0],CTL1,PLL_syncTx2:B[7:0],CTL2,3第十四页，共24页。AlloftheSchemeonTMDSField第十五页，共24页。WhatisLVDS?ThefeatureofLVDS

1.DifferentialFanout2.LowSwingGoodForDesign1.LongCommutationDistance2.Goodnoisedefense3.LowPowerconsumption第十六页，共24页。DataCommunicationsofLVDSCompressType

CompressRate:7timesitisbe…..

TX0:R0~R5,G0TX1:G1~G5,B0,B1TX2:B2~B5,H_snyc,V_snyc,DE…….as6bitdatatransmitter

TX0:R0~R5,G0

TX1:G1~G5,B0,B1TX2:B2~B5,H_snyc,V_snyc,DETX3:R6,R7,G6,G7,B6,B7,X…….as8bitdatatransmitter第十七页，共24页。WhatisEDID?

ExtendDisplayIdentificationDataStandard

Purpose

ItisbuildonVESAstandardtodefinetheDisplayfiled.TheOriginalEDIDStructuredefinitionfromDDCStandard.DataformatVendor/ProductIdentification/EDIDVersion/BasicDisplayParameters/Features/Established/StandardTiming/DetailTiming/ExtensionFlag/ChecksumDataCommunicationMethod

DisplaycardgetDatafordisplayingbySM_BusprotocolWhatisimproveontheLCMTestingDept.

第十八页，共24页。TimingListonVESA第十九页，共24页。Resolution&RefreshRatefH(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第二十页，共24页。TheStructureofDisplayH_ActiveV_ActiveAddressAreaBorderFrontPorchSync.WidthBackPorchBorder第二十一页，共24页。HowtoCalculatetheDo