LED 產業發展趨勢
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LED 2009.11.03
LEDLED
19831997LED
5,300 () () ()
Total Solution for LEDsHigh Power LEDsSurface Mount LEDsLED Lamp AssemblySignage LEDsPhoto couplerLight BarLED ModulesLED Lamps and DisplayInfrared (IR) Components
LED LEDLED
LEDLEDLED MR16LED
LEDLED
1962 1970 ~ 1991 1995 1996 2002.09 2004.11 2006 2007Shuji NakamuraGaN1995GaNLEDLED1996InGaNLEDLEDLEDLED
GELED5mm LAMPAlGaInPLED(HP+)InGaNLED(Nichia)YAGLED(Nichia)LEDLCD TV100lm/WLED(Nichia)LED(Lexus)
LEDLED19931996LED1983LED 1975 1983 1993 1996 2000 2003 2005.12 2007.3 2008 2009LED
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GaNLEDOSRAM
LED100lm/WAC LED
OSRAM
LEDECEVEgECEVEgl=1240Egl=1240EgP-cladding(AlXGa1-X)0.5In0.5P N-claddingCurrent SpreadingContact Active Layer(Junction)EpiSubstrateBasic LED StructureEnergy Release
LED Chip structureLED structureCathode LeadFlat Spot Anode Lead Lead Frame Wire Bond Epoxy Lens SemiconductorChip Epoxy CaseReflective CupLED
LEDLED
LEDLAMPSMD
LED
LEDChip & PhosphorWhite LightGenerationCRISingleChipBlue LEDInGaN + YAGBlue light + Yellow phosphor60-75%UV LEDInGaN + RGB phosphorUV + RGBphosphors90% upBlue LEDInGaN + RG phosphorBlue + RG phosphors90%MultiChipRGB multi-chip LEDAlInGaP +InGaN + AlGaAsRGB compensation 80% up
Chip AbilityPhosphor EfficiencyEncapsulation Refractive IndexReflective Material ReflectancePackage DesignEX : Different Current SpreadingEX : Different Particle SizeRI=1.4 RI=1.5LED
Sulfidizing GasCrackDelaminationFailed orOver 5% brightness decayAg frame color changes(over 5% brightness decay)Failed orOver 5% brightness decayPPAPPA color changes (over 5% brightness decay)LED
Test package : 50215 (3014)Sulfur & Water prevention How to prevent sulfur & moisture penetrationSilicone with higher hardness & higher refractive index can prevent moisture & sulfur penetration.RIO2 (cm3 / m2 / 24h / atm )CC / 241HardnessADA0A100D0D100
RI1.41.41.51.51.5HardnessA 50A 70A 55 D 35D 75H20 (g/m2/24h)1008050202O2 (cm3/m2/24h/atm)36000220005500900130Sulfur test
Substrate SolutionCeramicPPA Al2O3 or AlNLowBestCostReflectanceNormalLevel 3 ~ Level 2StabilityMSLHighGoodCostReflectanceBestLevel 2 ~ Level 1StabilityMSLProduct TypeProduct Type
Everlight ability to reduce CIE difference at different viewing angle.200820092010~70lmOld TypeShuenTop ViewSide View120lmImprove over 10%Ceramic300lm @350mA10.5V (3.5W)C07FCeramic540lm @600mA13V (8W)C16TCeramic + Spray coating + silicone moldingPhosphor coating technology
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LED2010LEDLED//LED
& LED LED LEDMOCVDLEDLEDLEDLED
IMS Research2008LED62.012013102.42006-201311.4%LED
LED
LEDLED
2009LED TV65LEDSonySharpLGVizioTCLLED TVLED TV
LED LEDCCFL LEDCCFL LED 2010LED 85%2010LED 5%2010LED 10%Notebook160,000K Monitor170,000KTV150,000KLED
LEDCCFL
LED BacklightCCFL Backlight1,000,000:11,000:1LED1cmLEDNTSC>105%~75%30%~50%
LEDLED2009LED TV2010LEDTVLED630(115 (34 (12 (: Macquare Research 2009/JulyLED
LEDLEDLEDLED
20092009LED201220102010201020122012201210
100 lm/wLED15 lm/w;LED 5852012LED
LED2007 LED NT480LED
LEDLEDCan incorporate heatsink and secondary opticsLEDLight engines incorporate additional optics, LED driver, wire, and circuitryLEDComplete lighting unit including light source and housingIncorporate software, dimmer, and bus systemLED
LED
LED
LED
LED
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Q & A
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