LED Backlight Market Technology Trend

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LEDBacklightMarket&TechnologyTrendFrancisWongStrategyMarketingManagerStrategyPlanningDepartment,OPTOSBULEDIndustryTrend(byProduct)$-$1,000$2,000$3,000$4,000$5,000$6,000$7,000$8,000$9,0002005200620072008TAM(MUSD)-20%-15%-10%-5%0%5%10%15%20%25%30%CAGR(%)HighBrightnessLEDConventionalLEDInfraredLEDSource:BNPParibas,Lite-On2007EfficiencyImprovementofWhiteLED110100199519971999200120032005200720092011IlluminationEfficiency(lm/W)WhiteLEDRedLEDGreenLEDBlueLEDRedFilteredTungstenLampYellow/GreenFiltedTungstenLampTungstenLampFluorescentLampSource:Lite-On2007BoomingLEDApplication2012■■■■MonitorLCDBLMs■ScannerLightSource■StreetLights2011■NBLCDBLMs(10”-15”)■LCDBLMs(7”)■■■■TVLCDBLMs■■■■LandscapeLighting■DayRunningLights200920082010■■■■■IndicationLights2007200620052004200320022001200019991998199719961995■■■■■HandsetKeypadBacklight■■■■Signage,TrafficLights■CHMSL■■AutomotiveTailLights■LCDBLMs(3.5”)■HandsetCameraFlashesComparisonOfWhiteLEDTechnologiesDifferentcolordecayamongred,greenandblue.Lowcoloruniformity,longcolormixingdistanceHigherCostLoweropticalefficiency(ButsameasMultiChipWhiteLightLED)Lackofredcolorspectrum,lowercolorsaturationAdvantageMercuryFreeLCDTVAcceptablecolorsaturationStilllowcostandthinBlueLEDmixwithRed&GreenphosphorBlueLED+RGPhosphorLCDTVLandscapeLightingHandset7-inchpanelNotebookApplicationBettercolorsaturationLowcostandthinAdvantageMixofred,greenandblueLEDBlueLEDmixwithyellowphosphorEmissionMultichip(RGB)BlueLED+YAGPhosphorLCDBacklightisKeyDemandDriver02004006008001000120014002005200620072008TAM(MUSD)0%100%200%300%400%500%600%CAGR(%)LEDBLMTAMLEDBLMCAGRTTLLEDCAGRSource:DisplaySearch,Lite-On2007ComparisonOfDifferentBacklightSourcesCCFLReplacementLimitedbyRoHSLimitedbyRoHSFutureDevelopmentHigherInbetweenLEDandCCFLLowerASPHandsetkeypad,DSC,PDALCDdisplayLCDdisplayApplication70-90lm/W60-80lm/W60-80lm/WIlluminationefficiencyThinnessandlongerlifetime,environmentallyfriendly30%powersavingoverCCFLHighbrightnessAdvantageHighercost,heatgenerationFewsuppliers,highoperatingvoltageHighpowerconsumption,shorterlifetime,mercuryDisadvantageLEDEEFLCCFLCCFLsupplyshortagewillpromoteLED-12%-10%-8%-6%-4%-2%0%3Q054Q051Q062Q063Q064Q061Q07Supply/DemandGlutRate(%)Source:BNPParibas2007CostisTriggingTheMarketLightSourceCoston7Panels$-$0.5$1.0$1.5$2.0$2.5$3.0$3.5$4.01Q062Q063Q064Q061Q072Q073Q074Q07Cost(USD)LEDCCFLLightSourceCoston12Panels$-$1.0$2.0$3.0$4.0$5.0$6.0$7.01Q062Q063Q064Q061Q072Q073Q074Q07Cost(USD)LEDCCFLSource:BNPParibas2007NotebookProductswithLEDBacklightFujitsuQ70UN▪12.1”WPanel▪2mmLCD(LEDBLM)▪TotalWeight1.0KgSonyVaioSX▪13.3”WPanel▪2mmLCM(LEDBLM)▪TotalWeight1.69Kg2005AprAug2006JanAprNov2007JunToshibaRX1▪12.1”WHBPanel▪2mmLCD(LEDBLM)▪TotalWeight0.9KgToshibaU100▪7.2”Panel▪2mmLCD(LEDBLM)▪TotalWeight1.4KgFujitsuT70▪10.6”Panel▪2mmLCM(LEDBLM)▪TotalWeight1.2KgSonyVaioTX▪11.1”WPanel▪2mmLCM(LEDBLM)▪TotalWeight1.0KgSonyVaioGX▪12.1”WPanel▪2mmLCM(LEDBLM)▪TotalWeight0.9KgAppleMacBook▪15.4”WPanel▪2mmLCM(LEDBLM)▪TotalWeight5.4lbAdvantageofLEDBacklight•LighterinWeight–ThethicknessofLCDmodulecanbereducedtohalfwhenitequippedthinnerLCDglass&LEDBacklightModuleLCDPanel.–ComponentsforLEDbacklightislighter.SothetotalweightofnotebookPCcanbecontrolledin1Kg.•PowerSaving–LEDisadirectionallightsource.Itcanbeeasilycoupledintolightguide.ThereforeLEDBacklightgains20-30%ofpowerback,evenLEDandCCFLhavesimilarilluminationefficiency(LCMcontributes35%oftotalpowerconsumptionofnotebook.)•BatteryLife–ConjugatedlowvoltageCPUandotherlowpowerconsumptioncomponents.ThetotalpowerofnotebookPCcanbereducedmorethan30%.Batterylifecanbeextend.Approx.4.7mmApprox.9mmCCFLBacklightModuleLEDBacklightModuleIssuetobeClosed-LifeandHeatManagement1.E+001.E+011.E+021.E+031.E+041.E+051.E+061.E+071.E+081.E+091.E+105060708090100110120JunctionTemperature(°C)EstimatedLife(Hours)IssuetobeClosed–LightGuideTechnologyHotSpotIssueYieldofThinLGPIssuetobeClosed–CostReductionLightSourceCoston7Panels$-$0.5$1.0$1.5$2.0$2.5$3.0$3.5$4.01Q062Q063Q064Q061Q072Q073Q074Q07Cost(USD)LEDCCFLLightSourceCoston12Panels$-$1.0$2.0$3.0$4.0$5.0$6.0$7.01Q062Q063Q064Q061Q072Q073Q074Q07Cost(USD)LEDCCFLMonitor/TVProductswithLEDBacklight2004Jul200520062007SonyVGP-D23HD1▪23”Panel▪NTSC105%▪190WNECLCD2180WG▪21.3”Panel▪NTSC101%▪160WSamsungXL20▪20.1”Panel▪NTSC114%▪190WSonyQualia005▪40”/46”Panel▪NTSC105%▪498/612WSonyKDL-70X▪70”Panel▪NTSC102%,xvColor▪200WSamsungLE40M91▪40”Panel▪NTSC114%▪120WComparisonofDifferentBLMTechnology50ns0.3Sec1Sec1SecTurn-OnInstant10575~807272%ColorGamut(NISC)0.31.81.51.2-1.5KVStartingVoltage80~85808580%Uniformity110120~130110110WPowerConsumption50-6040~507070lm/wLuminanceEfficiency-40~85-40~850~500~50°COperationTemperature4055-5840-6040-60°CSurfaceTemperature12,00012,00012,00012,000nitsLuminance30-50303030mmBLUThickness50,000100,00060,00050,000hrsLifeTimeNoneXeMercuryMercuryGasRGBLEDHg-FreeFFLEEFLCCFLUnitJunctionTemperaturevs.Life1.E+001.E+011.E+021.E+031.E+041.E+051.E+061.E+071.E+081.E+091.E+101.E+11255075100125JunctionTemperature(°C)EstimatedLife(Hours)IssuetobeClosed–ColorMixingReflectorColorM

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