Industry and University Partnership: Solid State Lighting and Display Center
Steven DenBaars, Shuji Nakamura, Umesh Mishra, Jim Speck, Evelyn Hu, Claude
Weisbuch, Chris Van de Walle, Pierre Petroff, Tony Cheetham, Fred Lange
Solid State Lighting and Display CenterMaterials and ECE Departments
University of California, Santa Barbara
UC Santa BarbaraSolid State Lighting & Display CenterIndustry Partners
Matsushita Electric Industrial Co., Ltd.
10 Industrial Partners
SSLDC FacultyShuji Nakamura-Inventor GaN blue LED & laser
Steven DenBaars-Epitaxial growth
James Speck-MBE/TEM
Umesh Mishra- Device fab
Evelyn Hu-Nanostructures-Photonic X’tal
Pierre Petroff-QDotsChris Vandewalle
-Elec. Theory
Tony Cheetham-Phosphors
Claude Weisbuch-Photonic X’tal
Fred Lange-ZnO
• High efficiency lighting system for general illumination
• Solid-state light >80% theoretical energy efficiency
• Luminous efficacy of 200 lm/watt
luminaire
GaNLED or LD
Solid State Lighting (LED-Based) Goal
0.1
1
10
100
1965 1970 1975 1980 1985 1990 1995 2000 2005
Time (years)
Lum
inou
s E
ffic
ienc
y (lm
/W)
Fluorescent
Unfiltered incandescent (13LPW)
Thomas Edison’sfirst bulb
GaAsP
GaAsP:NAlGaAs/GaAs
(red)
AlInGaP/GaP
AlInGaP/GaP(red,orange,yellow)
InGaN(blue)
InGaN(green)
InGaN(blue)
SiC(blue)
GaN LED Historical Development
White LED (133) lm/W
Compact Fluorescent (55LPW)
Energy Usage Comparison
0
10
20
30
40
50
60
Light Source
60W Bulb
CompactFluor.LED
LED and Compact Fluorescent vs. 60Watt Light Bulb ComparisonP
ower
Use
d (W
atts
)
Large markets > $15 Billion/yr
Streetlights
CellphonesTraffic signals
TVs (RP & LCD)
Large Displays
Automotive
Center Membership- Company Benefits
• Center member companies will be offered licensees on a co-exclusive basis for a period of twelve (12) months from disclosure of the invention to the University.
• First year Patent costs will be paid by SSLDC• Member Company chooses its own research
goal• Member Company can send one Visiting
Researcher a year.• Board Seat on Industrial Advisory Board
New GaN Inventions by Fiscal Year: 14 new Patents in FY05 plus 14 in FY06
(38 SSLDC patents to date)
0
5
10
15
20
25
2002 2003 2004 2005 2006
SSLDC
Total (including non-SSLDC GaN, ZnO)
SLEO low defect
Light Extraction Eff.
Conversion Efficiency
Internal Q. Efficiency
Electrical Efficiency
SSLDC Key Technologies for Energy Efficient White LED
Semi,nonpolar
ZnO mega-cone
Photonic crystal
New phosphors Contacts, semi-polar
New ZnO
Inventions per Research Dollar
Research Institution Average1
$2.4 million expended per invention disclosure
Tech Company Rule of Thumb2
$500k expended per invention disclosure
SSLDC$370k expended per invention disclosure• More Productive than Most Universities and Tech Companies!
1. Average from 2001-2003 AUTM licensing surveys.2. The Economist, October 22, 2005.
Solid-State Lighting& Display Center
SSLDC ANNUAL REVIEW 2005
Agreement TypesCo-Exclusive vs. Non-Exclusive
• Co-exclusive SSLDC inventions will only be available to member companies.
• Non-exclusiveNon-members may also license or option SSLDC inventions.
Solid-State Lighting& Display Center
SSLDC ANNUAL REVIEW 2005
Global Warming/Energy Savings Potential
If a 150 lm/Watt Solid State LED source were developed, thenin the United States alone we would:
• Realize $115 Billion cumulative savings by 2025*• Alleviate the need for 133 new power stations*• Eliminate 258 million metric tons of carbon*• Save 273 Tera-Watt-hours/year in energy**
* “The Promise of Solid State Lighting” OIDA Report , 2001, http://www.netl.doe.gov/ssl/PDFs/oida_led-oled_rpt.pdf**A. D. Little, “Energy Savings Potential of SSL” Report for Dept. of Energy,
http://www.eere.energy.gov/buildings/info/documents/pdfs/ssl_final_report3.pdf
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