Post on 21-Dec-2014
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Will Your TV Light Your House?
Mark_McClear@cree.com
October 27, 2010
Copyright © 2010 Cree, Inc. pg. 3
Major New LED Application
Copyright © 2010 Cree, Inc. pg. 4
Cool, But Can This Class of LED Light Your House?
• What features are neededfor general illumination?
– Brightness/efficiency– Lifetime (LM-80)– Chromaticity
• Right color (ANSI)• Stay the right color• Right binning
– Low thermal resistance– Standards conformance– Application-specific
(some apps)• Compatibility with
secondary optics • High color rendering
– Right support• Distribution, applications
eng, app notes, data, data, data…
Copyright © 2010 Cree, Inc. pg. 5
Cool, But Can This Class of LED Light Your House?
• What features are neededfor general illumination?
– Brightness/efficiency– Lifetime (LM-80)– Chromaticity
• Right color (ANSI)• Stay the right color• Right binning
– Low thermal resistance– Standards conformance– Application-specific
(some apps)• Compatibility with
secondary optics • High color rendering
– Right support• Distribution, applications
eng, app notes, data, data, data…
What’s Happening…
LM-80 @ 85˚C, IF max
•L70 vs. L50
L70
L50
Package Degradation
Chip Degradation
Copyright © 2010 Cree, Inc. pg. 6
☼ Brightness
Copyright © 2010 Cree, Inc. pg. 7
☼ Brightness
Copyright © 2010 Cree, Inc. pg. 8
☼ Brightness
Copyright © 2010 Cree, Inc. pg. 9
☼ Brightness
Copyright © 2010 Cree, Inc. pg. 10
…What Else is Happening…?
• What features are neededfor general illumination?
– Brightness/efficiency– Lifetime (LM-80)– Chromaticity
• Right color (ANSI)• Stay the right color• Right binning
– Low thermal resistance– Standards conformance– Application-specific
(some apps)• Compatibility with
secondary optics • High color rendering
– Right support• Distribution, applications
eng, app notes, data, data, data…
?
?
Copyright © 2010 Cree, Inc. pg. 11
☼ Hue
Copyright © 2010 Cree, Inc. pg. 12
☼ Hue
Copyright © 2010 Cree, Inc. pg. 13
☼ Hue
Copyright © 2010 Cree, Inc. pg. 14
☼ Hue
Copyright © 2010 Cree, Inc. pg. 15
ANSI C78.377A~7-step MacAdams
~2-step MacAdams
Must Match Incumbent Color Consistency
Cree EasyWhite™~2/4-steps
XLamp MC, MP
~4-step MacAdamsXLamp ML, MX, XP
Copyright © 2010 Cree, Inc. pg. 16
Long Learning Curve in Binning…
2007
2009
2006
ANSI C78.377-2008 3000K Quadrangle
2010
2-step
4-step
Copyright © 2010 Cree, Inc. pg. 17
150mm2x increase in die
per wafer
Cost is a Learning Curve Also…
100mm
Copyright © 2010 Cree, Inc. pg. 18
FIXTURESLAMPS
Lighting Is Not One Application
Fitting the LEDs to the application yields betterresults than forcing the application to the LEDs…
MX-6 MC-E
MP-L
MP-L
MX-3 MX-6
ML-E
ML-EXP-G
XP-G
XP-G
XP-E XP-EXP-E
XP-E
XP-E
XP-C
XM-L
LMR4
Lighting-Class LEDs are Not One Product
Copyright © 2010 Cree, Inc. pg. 19
How About This Other Stuff…?
• What features are neededfor general illumination?
– Brightness/efficiency– Lifetime (LM-80)– Chromaticity
• Right color (ANSI)• Stay the right color• Right binning
– Low thermal resistance– Standards conformance– Application-specific
(some apps)• Compatibility with
secondary optics • High color rendering
– Right support• Distribution, applications
eng, app notes, data, data, data…
?10x higher Rth (˚C/W)
Product breadth
Don’t Underestimatethis one!!
Not Trivial ??
?
Copyright © 2010 Cree, Inc. pg. 20
• No.
• Lighting-class LEDs will
• New suppliers will enter the space, but be cautious as they come down the learning curve to Lighting-class– New chips
– New packages
– New phosphors
– New standards
– New applications
– New support requirements
So, Will Your TV Light Your House?
XLamp XP-E
XLamp MC-E
XLamp XR-E
XLamp XP-G
XLamp MP-L
XLamp XP-C
XLamp MX-6 XLamp ML-E“Welcome To The Party, Pal”
(No remote button for that…)
Copyright © 2010 Cree, Inc. pg. 21