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1、外文文献资料收集：苏州大学应用技术学院10电子(学号1016405036)［岳嵩］ResearchonColorMatchingofLEDBacklightforLarge-Co1or-GamutLCDApplicationComparingwiththeconventionalCCFL(ColdCathodeFluorescentLamp)backlight,three-basic-colorLEDsbacklighthassomeadvantagessuchasgoodcolorreproduction,long
2、lifeand1eadfreeetc.Theoretically,thecolorgamutisdeterminedbyx,ycoordiriatcsofthethrccbasiccolorsinCIEchromaticitydiagram,andthex,ycoordinatesofeachbasiccolorcanderivedfromtherelativespectrumdistribution(RSD)oftheLED.Inthispaper,thered,greenandblueLEDs，RSDmodels
3、arecstablishedtocalculateandanalyzethecolorgamutofabacklight.BySimulatingthosemodels,therelationshipsthatthecolorgamutofaLEDbacklightvarieswitheachcolorareanalyzed,andtheoptimumcombinationofthreecolorsisobtainedwithinthegivcnwavelengthsremgcs.Moreover,thecombin
4、ationsofthreecolorsforthegcimutof115%NTSCand110%NTSCareplottedinpictures,respectively.1.INTRODUCTIONIn1931C1Echromaticitydiagram,threepointscorrespondingtoRGBcolorsconstructatriangle,inwhichallcolorscanbereproducedbythethreebasiccolors.Areaofthatdeterminestheco
5、lorgamut,andthewiderthecolorgamutis,themorecolorsthesystemcanreproduced.NTSCisoneofthebroadcastingstandardswhichweredefinedbasedonthecolorimetriccharacteristicsofCRTdisplay.InNTSC,standardilluminationCorD65isused,andthethrcc-basic-colorcoordinatesandthecolorgam
6、utareshowedinFig1.ThecolorgamutofNTSCsystemwillbehereinaftertakentocomparewithcolorgamutofotherdisplaysystems.0・9Figi.NTSC：co1orgamutinchromaticilydiagramRecently,CCFLbacklightsstilloccupythedominantstatusintheareaof1iquidcrystaldisplay,however,CCFLbacklightsar
7、epoorcolorreproductionandtheircolorgcimutonlyreachabout76%NTSC,andobviouslythisdrawbackismakingCCFLbacklightslosemoreandmoremarketofLCDbacklights.Ontheotherside,therapiddevelopmentofLEDoverthepeissedfewyearshasopeneduptheopportunityforLEDbacklightstosubstitutef
8、orCCFLbacklightsin1iquidcrystoldisplayindustryfortheiradvantageslikegoodcolorreproduction,long1ifeandleadfreeetc.Thecolorgamutofadisplaycanbeenlargedbyusingsaturatedprimciry
