OEL之发展现况与趋势

OEL之發展現況與趨勢新興平面顯示器翰立光電蔡君徽Jan.17,2001Display-TheinterfacebetweenoperatorandmachineClassificationofelectronicdisplayElectronicdisplayProjecttypeDirect-viewtypeOff-screentypeCRTLightvalvetypeLCDDMDCRTFlatpanelMonochromeColorCPTCMTLight-emittingtypeNon-light-emittingtypeLCDFEDFlat-CRTELLEDPDPHead-updisplay現行各類顯示器特性比較需求特性輕薄省電低價機動大畫面高畫質類別CRTxx¤D¤¤LCD(d)¤¤¡¤D¤LCD(p)¤¤D¤¤¤PDP¡D¡¡¤¡VFD¡¡¡¡DDELD¡D¡¡DDLED¡¡DD¤DFED¤¡-¤D¤優

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¤>¡>D>x®劣DIsthereanyroomforanewdisplaytechnology？？？？？有機發光顯示器（OLED,PLED）OLED與LCD結構比較玻璃基版玻璃基版I，II透明電極透明電極II透明電極I金屬電極偏極板II偏極板I彩色濾光膜有機發光材料OLED,PLEDLCDCharacteristicsofOrganicLEDDeviceLargeemittingareaLowdrivevoltage(<10V)Fastresponsetime(nsec)Highbrightness(100,000cd/m2)Highluminanceefficiency(>10lm/W)FlatpanelFlexibleMulti-color(blue,green,red,white)Easyfabrication(vacuumevaporation,spincoating)Poly(phenylene-vinylene)Poly(fluorene)AlqOrganicEL-MaterialsPolymersSmallmoleculesOLEDSolutioncastedVacuumsublimationDepositiontechniqueNPBOLEDPLEDmaskEvaporator1Indium-Tinoxide(ITO)0.1µmGlass,PETMaterialpurifySuccessivevacuumdeposition

oforganiclayersFabricationofOLEDsEncapsulationmaskEvaporator2maskThermalevaporatorIndium-Tinoxide(ITO)0.1µµmGlass,PETFormulationofsolutionFiltrationofsolutionheatSuccessivedepositionoforganiclayersSpin-coating:Cost-efficientdepositiontechniqueFabricationofPLEDsEncapsulation有機發發光顯顯示器器與同同級產產品比比較CharacteristicsofRGBemitterbasedonAlqsC.W.Tang,J.SID.,5/1,1997ColorOLEDSanyoandEstmamKodak(May,2000)ColorOLEDSpecificationofDotmatrixdisplay(OEL)Oct/2000ColorPLEDREDGreen(PPV)Blue(Poly(dioctylfluorene))PolyimideSiO2PEDT/PSSITORED:PPV/Rhodamin101CathodeLayerstructureofamulticolorLEPdeviceF-8PPV/F8RPPV/F8400450500550600650700750Wavelengthnm20406080100120PictureimageofthedisplaywithtwotransistorcircuitandstackedlayerstructureActiveMatrixPLEDwithInk-JetMethodColorPLEDSeiko-EpsonandCDTDevelopWorld’sFirstInk-JetPrintedFullColourLightEmittingPolymer(LEP)Display(22June2000)IEDM‘‘99PhotoluminescencefrompixelsfabricatedbyInk-jetdepositionofthreecolorpoly-fluronematerialsPictureimageofthenewcolorpanelusingarearatiograyscale(4levelsforeachcolor)andink-jetdepositionofthreecolormaterialsColorPLEDPolymerLEDinDeltaOptoelectronicsLicensedfromCambridgeDisplayTechnology(CDT),StrategicalliancewithDOWChemicalThin,flatandlightSelf-emittingHighcontrastratioWide-viewangleHighefficiencyPLEDTechnologyinDeltaTechnicalAchievementsBrightness：：0––104cd/m2Operationtemperature：：>70ººCPowerconsumption：0.1mW/mm2(at300cd/m2)Lowvoltageoperation：2.5VturnonColors：：Green、Red、Yellow、、BlueLongLifetime>10,000hoursPLEDApplicationsCellularphonePDAGamesetA/VdisplayIndicatorDynamicInformationDisplayOthersPLED&STNLCDComparisoninMobilePhoneApplication*:25%ofdotsemitlight**:HalfbrightnessPLEDProductionCapacityinDeltaNow:12””12””substrates3,000pcs/monthQ3/2001:14””14””substrates30,000pcs/monthQ2/2002:14””14””substrates60,000pcs/month200020012002PLEDDevelopRoadMapinDelta