LED TV backlight 青岛 10122009

LEDTVbacklightApplicationanddevelopmenttrendWAICHIELECTRONICSLTD10~11/12/2009(青島)Content:TechnologyAnalysis:LEDB/LvsCCFL1LEDTVB/LAPPLICATION&CURRENTMARKETTREND2Markettrend&ForecastofLEDTVB/L3DevelopmentRoadMapofLEDTVB/L4TechnologyAnalysis:LEDB/LvsCCFLLEDTVB/LCCFLB/LPROS1、w/oMercury/Environmentfriendly2.EpoxyEncapsulation,moreconcrete3、Highcolorgamut(NTSC72-99%)4、Longlifetime＞50Khrs5、Slimdesignisapplicable6、Energysaving7、Highefficient8、D/Cdrivemorereliable9、FastResponsetime1、simpleonassembly2.LowercostCONS1、complicateonassembly2、highercost1、withMercury,withHazardousmaterial。2、glasstubeeasybroken3、NTSCis72%only4、shortlifetime(less30Khrs)5、morethick6、largerpowerconsumption7、slowrespondatlowtemperature8、highvoltagedriving,un-reliable9、takeslongwarmuptime,slowrespondPowerconsumptioncomparison:LEDTVB/LVSCCFLSizeCCFLpowerconsumptionLEDTVB/Lpowerconsumption%ofEnergysaving26”≈80W≈40W5032”≈140W≈70W5037”≈170W≈90W4442”≈220W≈120W41.547”≈250W≈150W3352”≈290W≈190W272.0LEDTVB/LAPPLICATION&CURRENTMARKETTRENDTosumupadvantagesanddisadvantagesofCCFLbacklightandLEDTVB/LandtherapiddevelopmentofLED.ItiseasytoconcludethatLEDisenergy-saving,environmentalfriendly,longlife,highcolorgamut.WithincreasingofLEDbrightnessandpriceofledcontinuallytodrop.WebelievethatLEDTVB/LwillgraduallytakeovertherequirementofCCFL.NewtypeofLCDTVwithusingLEDbacklightwillsoonbeamainstreamonTVmarket.In2009,theultra-slimsizeandusingwithLEDB/LisundoubtedlybethemostpopulartermsintheflatTVmarket,alsoknownas“TheyearofLEDTVapplications.Sincelastyear,alotofTVmakeroffertheirbrandnewmodel:--SHARP2.8cmmodelXS1A-HITACHIWoooUT3.5cmseries-SONY0.99cmmodel40ZX1-SAMSUNG:80000series,7000mid-level&6000preliminarylevelAllthesenewofferarefullyboostedupthecurrentTVmarket.TheseLCDTVsaremostlyadoptedwithedgetypeledbacklightandwhichwillbeamainstreamofLCDTVmarket.Morefurther,directtypeTVbacklightwithdynamiccontrolandhighcolorgamutwillalsobeanotherversionwhichisgoingtodevelop&promoteinthemarket.EndusercanhavemoreoptiononselectionofhighendflatTV.TVwith(edgetypeledB/L)isalsoshownasbelow.JapanWOOOUTslimmodelSHARP2.8cmmodel0.99cmSONYmodel3.0Markettrend&ForecastofLEDTVB/LRecentLEDbacklightmarkettogrowrapidlyandbecomeahighlightofTFTLCDindustry.AccordingtoDisplaySearchsurveydatapointedoutthatthe2009adoptionofLEDbacklightLCDTVislessthan3%by2013,willrapidlyincreaseto40%in2014shipmentqtywillbemorethanCCFLbacklights.2008-2015marketshareofTFTLCDw/LEDB/L4.0DEVELOPMENTROADMAPOFLEDTVB/LMoreenvironmentallyfriendly,moreenergy-saving,brighter,thinnerandlighter,hasfullybeenadoptedduringourproductdevelopment.WaiChicanwelldevelopledB/Lwithusingourownteamofskillfulengineers.(sizerange1to105”).Itsluminousefficiency,thickness,energy-savingandothertechnicalaspectareuptothehighend&advancelevel..WithaccumulatedfiveyearsofR&Dexperience,wedevelopthelatestgenerationofLEDB/LforTVapplication.-DUALSCREENTYPE-COBTYPE-CONVENTIONALSMDTYPE-MULTIBOARDTYPE(withdimmingcontrol)Currentmodelsare26”,32”,40”,42”,47”,52”sizeTVwithLEDbacklighting.Min.thicknessofledB/Lisnow5.7mmandwhichisgoingtoimproveagaininfuture.Luminancecanbe8000cd/m2orabovewithsuperiorNTSCperformanceandnaturecolorharmony.Product'slifetimeisupto50khours.WaiChi’sLEDpackaging,lightguidedesign,etc,haveawarded20designpatentsinmainlandChina.WAICHILEDB/L-ABILITYANDR&D1.OPTICALEXPERIENCE:MORETHAN20YEARS2.LGPDESIGN:-MORETHAN15YEARSDESIGNEXPERIENCEONLGPPATTERNTEXTURE-ADVANCEOPTICALSIMULATIONSOFTWARESUPPORTNETWORKDESIGN3.LGPPRODUCTION-LARGESIZELGPLASERCUTTINGEQUIPMENT-LARGESIZELGPSILKSCREENPRINTINGMACHINE4.TESTINGEQUIPMENT-LUMINANCETESTERCANCONDUCTENTIRESURFACEMEASUREMENT.(pointmeasument)-BM7:BRIGHTNESS&CHROMATICITYMEASUREMENT5.ADVANCESMTLEDENCAPSULATIONMACHINE&LEDSCREENINGFACILITY6.SKILLFUL&EXPERIENCEDENGINEERINGTEAM(1)LEDCOBbacklight1、LEDCOB-DirectType：InnovationproductdesignbyWaiChi-PatentNo.：#200810241212.3BacklightconstructionDirectTypeCOBbacklightadvantages:☆integratedproductionandlowcost.☆low-powerLEDchipconsumption,heatandthermalproblemisless.☆standardmulti-boardpanel,easyassembly.☆shortdistancebetweenLGPandLED(20mm).☆DynamicBacklightdesignmoreflexibleandeasier.☆highNTSCwithusingRGBLED.(1)LEDCOBbacklight(2)DirectType–LocalDimming/Dynamic2、MultiBoardconstruction:InnovationproductdesignbyWaiChiPatentNo.：200610139865.1advantagesofmulti-boardLEDbacklight:☆asmallbacklightlowproductioncost.☆theuseofsmall-powerLEDchips,problemofheatandthermaldesignless.☆multiboardpanel,easyassembly.☆LGPsmallersizeandthickness,theproductenablesmoreslim(thickness13mm).☆LGPmultiboarddynamicbacklightcanbedesignedtoenhancethecontrastofLCDTVs,lowerpowerconsumption.(2)DirectType–LocalDimming/Dynamic(3)EDGEType3、CONSTRUCTIONOFEDGETYPEPlasticHse+LED+PCB+Reflector+LGP+Diffuser+BEFUltra-slimLEDTVbacklightingadvantages:●backlightthicknessissmall,itcanbeachievedunder10mm.●weight:light.●simplestructure.●Energy-saving.(3)EDGEType(3)EDGEType-PerformanceNOSIZETHICKNESS(mm)NTSCPOWER(W)BRIGHTNESS(cd/m^2)LIFE(H)126”6.080%4010000＞50000232”7~9.080%709200＞50000337”7~9.080%908900