Challenges and opportunities for the flexible electronics...
Transcript of Challenges and opportunities for the flexible electronics...
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Challenges and opportunities for Challenges and opportunities for the flexible electronics industrythe flexible electronics industry
Ross BringansRoss Bringans
Palo Alto Research Center, Inc.Palo Alto Research Center, Inc.
[email protected]@parc.com
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about PARCabout PARC
uu 4 Divisions4 DivisionsØ Computer ScienceØ Intelligent SystemsØ Hardware SystemsØ Electronic Materials & Devices
Palo Alto Research Center – incorporated in 2002 (formerly Xerox PARC)
www.parc.comwww.parc.com
Large Area Electronics, MEMS, Optoelectronics,
Printing Systems, Biomedical Systems,Clean Technology, ...
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about PARCabout PARC
uu Research as a businessResearch as a businessØ Research with client companies and the GovernmentØ Partnerships with new venturesØ New business creation Ø Licensing and technology transfer
Palo Alto Research Center – incorporated in 2002 (formerly Xerox PARC)
www.parc.comwww.parc.com
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The Vision for Flexible ElectronicsThe Vision for Flexible Electronics
Nokia conceptsNokia
Electronic Patch Network
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The Vision for Flexible ElectronicsThe Vision for Flexible Electronics
uu There will be new applications that There will be new applications that utilizeutilize flexibilityflexibility
uu And new applications that And new applications that benefit frombenefit from flexibilityflexibilityØ Lighter, more robust,…..Ø Lowered cost of manufacturingØ Custom devices and systems
uu A destabilizing technology will be createdA destabilizing technology will be createdØ There are likely to be new winners
ÑWill they be in Asia, Europe or USA?
Nokia conceptsNokia
Electronic Patch Network
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Applications that need flexibilityApplications that need flexibilityuu DisplaysDisplays
Ø Placed on curved surfaces, wearableØ Roll-ableØ Robust
uu PhotovoltaicsPhotovoltaicsØ Placed on curved surfacesØ Aesthetics as well as function
uu Digital XDigital X--ray imagersray imagersØ Conformal – surrounding the objectØ Robust
uu Medical devicesMedical devicesØ Electronic patchØ Implantables
uu Systems on a foilSystems on a foilØ Wearable devicesØ Designed for people, not imposed on them
U. Washington
Samsung
Sony
Flexcell
Dig
ital P
last
er
Dig
ital P
last
er
Toumaz
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Benefits to industry from flexible substratesBenefits to industry from flexible substrates
uu RollRoll--roll manufacturingroll manufacturingØ Exists in many areas: newspapers, packages…..Ø Low cost at high volume
uu Thin, light substratesThin, light substratesØ Ultra-light systemsØ Stackable
uu RobustnessRobustnessØ No brittle devices
uu ExamplesExamplesØ RFIDØ PhotovoltaicsØ Smart labelsØ LightingØ Smart phonesØ Tablets…….
Thin Film
Soligie
PolyIC
CAMM
ECD Ovonics
HP / FDC at ASU
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Our perspective:Our perspective:
uu Flexible Electronics is an exciting opportunity Flexible Electronics is an exciting opportunity Ø New technology capabilities Ø New business opportunities
uu And And –– it is happeningit is happeningØ Particularly in Europe
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Our perspective:Our perspective:
uu Flexible Electronics is an exciting opportunity Flexible Electronics is an exciting opportunity Ø New technology capabilities Ø New business opportunities
uu And And –– it is happeningit is happeningØ Particularly in Europe
uu Applications will drive the technologyApplications will drive the technologyØ People want solutions – not technologyØ And they want convergence of functions
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Our perspective:Our perspective:
uu Flexible Electronics is an exciting opportunity Flexible Electronics is an exciting opportunity Ø New technology capabilities Ø New business opportunities
uu And And –– it is happeningit is happeningØ Particularly in Europe
uu Applications will drive the technologyApplications will drive the technologyØ People want solutions – not technologyØ And they want convergence of functions
uu ChallengesChallengesØ Commercial: How can we launch the industry?Ø Government: Where is the best leverage?
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PARCPARC’’s approachs approachuu Make Make ““standardstandard”” technologies flexibletechnologies flexible
Ø Amorphous and poly-crystalline Si
uu Exploit printing technologyExploit printing technologyØ InkjetØ Gravure
uu Develop organic electronicsDevelop organic electronics
uu Demonstrate with applicationsDemonstrate with applicationsØ DisplaysØ SensorsØ Systems
uu Develop hybrid approachesDevelop hybrid approaches
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Example 1:Example 1:AllAll--additive printed arraysadditive printed arrays
Gate line
Data line
Semiconductor
Pixel pad
340 um
680 um
PARC has demonstrated all-printed TFT backplanes for
displays
J. Soc. Info. Display 2007, 7, 485-490
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Why this is importantWhy this is important
uu Fewer stepsFewer stepsØ Printed:
Ñ 4 layers = 4 stepsØ Traditional:
Ñ 4 layers = 16-20 steps
uu Scalable to simpler Scalable to simpler applicationsapplicationsØ custom applicationsØ Smart labels etc.
Example 1:Example 1:AllAll--additive printed arraysadditive printed arrays
Gate line
Data line
Semiconductor
Pixel pad
340 um
680 um
Gate line
Data line
Semiconductor
Pixel pad
340 um
680 um
PARC has demonstrated all-printed TFT backplanes for
displays
PARC has demonstrated all-printed TFT backplanes for
displays
J. Soc. Info. Display 2007, 7, 485-490
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Example 2:Example 2:Printed Sensor TapePrinted Sensor Tape
Sensors
S1
Sn
Amplifiers
A1
AnAnalog memory bank
calibration
clock, logic
event trigger
read
out
laminated battery
Time • Monitor pressure, acceleration, sound, light• Signals recognized, processed, sent to memory• Non-volatile memory holds data for one week• Off-board readout system
Monitoring environment to prevent traumatic brain injury.Monitoring environment to prevent traumatic brain injury.(DARPA)(DARPA)
source: MicroVision
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Sensor Tape: Printed ElectronicsSensor Tape: Printed ElectronicsRing oscillator Shift Register
Amplifier
APL, 94, 233307 2009JAP, 106, 094504 2009
Memory
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SensorsSensorsuu Piezoelectric sensingPiezoelectric sensing
pressure
acceleration
Laminated PVDF foil or PVDF-TrFE solution
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Sensor Tape: Next step: integration MEMS sensors
VDD
Vout
Vin
bias
Printed organic amplifiers
Pressure signalafter amplifier
Pressure signalwithout amplifier
Printed memory cells
switch
Memoryinitial
written
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What we have learnedWhat we have learneduu Flexible sensor systems will be importantFlexible sensor systems will be important
uu Hybrid devices are very promisingHybrid devices are very promisingØ Silicon + organicsØ Printed + traditional manufacturing
Example 2:Example 2:Printed Sensor TapePrinted Sensor Tape
Sensors
S1
Sn
Amplifiers
A1
AnAnalog memory bank
calibr ation
clock , logic
ev ent t rigger
read
out
laminated batt ery
Time • Monitor pressure, acceleration, sound, light• Signals recognized, processed, sent to memory• Non-volatile memory holds data for one week• Off-board readout system
Monitoring environment to prevent traumatic brain injury.Monitoring environment to prevent traumatic brain injury.(DARPA)(DARPA)
source: MicroV isionsource: MicroV ision
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What we have learnedWhat we have learneduu Flexible sensor systems will be importantFlexible sensor systems will be important
uu Hybrid devices are very promisingHybrid devices are very promisingØ Silicon + organicsØ Printed + traditional manufacturing
uu Integration into a system can be doneIntegration into a system can be doneØ but is challenging
uu Taking this to the next level is difficultTaking this to the next level is difficultApplications need volumeVolume needs applications
Ø Does the industry wait for a company with enough money and demand to drive the development of a particular device
AND the industry itself?
Example 2:Example 2:Printed Sensor TapePrinted Sensor Tape
Sensors
S1
Sn
Amplifiers
A1
AnAnalog memory bank
calibr ation
clock , logic
ev ent t rigger
read
out
laminated batt ery
Time • Monitor pressure, acceleration, sound, light• Signals recognized, processed, sent to memory• Non-volatile memory holds data for one week• Off-board readout system
Monitoring environment to prevent traumatic brain injury.Monitoring environment to prevent traumatic brain injury.(DARPA)(DARPA)
source: MicroV isionsource: MicroV ision
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PARCPARC’’s views viewuu The flexible electronics industry has a huge futureThe flexible electronics industry has a huge future
uu We are active across the industry and work with a wide We are active across the industry and work with a wide range of participantsrange of participants
uu With our clients and partners, we invent, develop and With our clients and partners, we invent, develop and demonstratedemonstrateØ ProcessesØ PrototypesØ Applications
uu We are investing inWe are investing inØ ComponentsØ Partnerships for manufacturing
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What more is needed?What more is needed?
uu Focus on development of applicationsFocus on development of applicationsØ There is currently some funding for processes and capabilities
Ñ This should be enhancedØ We need to put this together with applications
Ñ The big missing piece in the US
uu This could kickThis could kick--start the industrystart the industry
…. the relatively low prevalence of actual manufacturing and advanced systems research and development in the United States has led to an incomplete hybrid flexible electronics R&D scenario for this country…… [NSF/ONR Report: www.wtec.org/flex/]
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Thank youThank you
Acknowledgments:Acknowledgments:
The PARC Large Area Electronics teams led by:The PARC Large Area Electronics teams led by:
Raj Apte, AnaRaj Apte, Ana--Claudia Arias, Bob StreetClaudia Arias, Bob Street
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BackupBackup
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Market SizeMarket Sizeuu IDTechExIDTechEx
uu 2010 to 2020 Market Size2010 to 2020 Market SizeØ IDTechEx find that the market for printed and thin film electronics will be $1.92 Billion in
2010. 43% of that will be predominately organic electronics - such as OLED display modules. Of the total market in 2010, 35% will be printed. Initially photovoltaics, OLED and e-paper displays grow rapidly, followed by thin film transistor circuits, sensors and batteries. By 2020 the market will be worth $55.1 Billion, with 71% printed and 60% on flexible substrates.
Ø However, the topic is even bigger than this with some conventional electronics such as conventional aSi Photovoltaics now migrating to being printed, to reduce cost, be available on flexible substrates and in larger areas. In addition to the above, forecasts for such markets are given, as is progress to print them.
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Impact of a Flexible Form Factor for Displays & Lighting
Julie Brown, Universal Display CorporationNational Academy of Sciences Workshop September 24, 2010
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2
Why Flexible ? – Looking back in history
Practical to Portable to Convenience to…
Displays
Lighting
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3
Portable + Real Time Information+ Vivid Color+ Green Technology
Why Flexible ? – For Displays
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Flexible Design Opportunities
• Non-breakable, light weight, ultra thin• Increased design opportunities
– New shapes– Curved– Rollable
• Enables new concepts– Wearable – Ultimate portability
Tai ChiemAleksandr Mukomelov NOKIA
Tirshathah Hunter
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5
How will flexible displays develop?
Form Factor
Performance : Full-color, vivid, video rate, low power
Bendable Rollable FreeForm• Compact • Total flexibility
• Paper-like• Light and slim• Wearable
Rugged• Light and slim• Rugged
Low Power• Thin and light
Sony
MotorolaE Ink
HItachiE Ink
SiPix
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6
Prototypes – some examples
Polymer Vision
Samsung SMD
ITRI
Plastic Logic
SonyUDC/LGD
LGD
PVI E Ink
Fujitsu
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OLED Display Offer High Quality Image
Courtesy of CH Lee, Samsung SDI
Samsung Galaxy S
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0 200 400 600 800 100020
25
30
35
40
Tem
pera
ture
[ o C
]
Time [hrs]
Phosphorescent OLEDs: Light without Heat
OrganometallicMolecules Key to100% Efficient
Phosphorescent OLED
* M.A. Baldo, et. al., Nature., 1998
Fluorescent OLEDs: Radiation restricted to singlet excitons, i.e., 1 of 4 spin states or ~25%.
Phosphorescent OLEDs*: Radiation is from triplets, i.e., 4 of 4 spin states or ~100%.
Power Consumption for Mobile PhoneAMLCD Compared to PH AMOLED
Temperature of PHOLED Light PanelPanel at 4500 cd/m2
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Flexible Display Video
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1st Field Evaluation at ‘On the Move’
• UDC delivered flexible AMOLED write units to U.S. Army CERDEC
• CERDEC used these units for a first field test at the 2010 C4ISR On The Move Exercises at Fort Dix
0.25 mm thick
5.4 mm thick< 5 ounces
AMOLED Display Packaged Unit Demo in UDC Lab
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Why Flexible … Lighting
Practical to Portable to Convenience to…
Displays
Lighting
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Lighting consumes 22% of the electricity generated in the U.S.A.That’s 8% of the total energy consumptionCosts $50 billion per yearReleases 150 million tons of CO2 into the atmosphere each yearMuch of it is 19th century technology with poor efficiencyCompact fluorescent (CFL) is a stopgap measure at best: we need solid state lighting (SSL) to achieve > 50% efficiency
The energy conservation argument... Save the planet!
Courtesy of Paul Burrows, Raeta Research
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UDC Proprietary and Confidential
13Evolution of Lighting
Compact FluorescentLamp (CFL)
1970s
Fluorescent Lamp
1930s
IncandescentBulb
1870s
White LED
1990s
OLEDs using energy efficient Phosphorescent OLED (PHOLEDTM) materials open up exciting new opportunities for efficient white lighting.
Energy SavingsNew Form Factor
10-20 lm/W
30-90 lm/W
100+ lm/W
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2002 2004 2006 2008 2010 2012 2014 2016
20
40
60
80
100
120
140 UDC Pixel (2 mm2) Efficacy UDC Panel Efficacy
Effi
cacy
[lm
/W]
Year
15 cm x 15 cm
15 cm x 15 cm
7.5 cm x 7.5 cm
DOE SSL Targets
Light Source
Luminaire
14
Progress in Phosphorescent White OLEDs
15 cm x 15 cm
Data from UDC Pilot Line
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Lighting Video
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Lighting Transformation: Flexible Lighting
UDC
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Technology Building Blocks are Maturing
Flexible Encapsulation• Status: Single layer and multi-layer proven• Top Issue: MP COO
Flexible Substrate• Status: Barrier Plastic or Planarized Metal • Top Issue for Display : Backplane selection• Top Issue for Lighting: Substrate system cost
Low Power OLED• Status: Phosphorescent RG and warm
W OLEDs proven, Deep blue available in FL-OLED
• Top Issue: Deep Blue PH Lifetime
Components for Flexible OLED Displays and Light Sources
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Perspective for Next Steps - Technology
Keep momentum for launch of first flexible display productsMilitary application can be first
Start manufacturing based on tested processesApplying continuous manufacturing methods for lightingApplying batch manufacturing methods for displays
Prioritize system level issuesMulti-layer material integration for flex-use integrityUser Interface - both mechanical and electrical
Prioritize flexible white OLEDs - transformation of lighting
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Perspective for Next Steps – Public Policy
FLEXIBLE OLED LIGHTINGMotivate consumer acceptance of higher priced products to launch the market
OLED will not enter, for example, at $2-3/bulb Motivate creation of industrial infrastructure for OLED lighting
Panel + Drive Electronics + FixtureUS Based MP of Lighting Panels
Attract domestic and international companies to manufacture in USA
FLEXIBLE OLED DISPLAYSInsertion of flexible AMOLED displays into the military use
Support the launch of manufacturing by providing a customer baseBroader mandates for energy efficient displays
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UDC Proprietary and Confidential
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Public Policy to Promote Flexible Energy Efficient Displays• California Approves New Energy Efficiency Standards for Televisions
– The California Energy Commission (CEC) approved the nation's first energy efficiency standards for televisions on November 18. When these standards take effect in 2011, new televisions sold in California will be the most energy efficient in the nation. After ten years, the CEC estimates the regulations will save $8.1 billion in energy costs, while avoiding enough energy use to power 864,000 single-family homes. The Pacific Gas & Electric Company estimates that over the course of a decade, the standards will reduce carbon dioxide emissions by three million metric tons. In a typical California home, televisions and related accessories currently account for about 10% of the electricity consumption.
– The technology-neutral standards mandate that new televisions sold in California should consume 33% less electricity by 2011 and 49% less electricity by 2013. The standards affect only those televisions with a screen size of 58 inches or smaller. For example, a 42-inch screen would consume 183 watts or less by 2011 and 115 watts or less by 2013. The CEC noted that more than 1,000 TV models on the market today already meet the 2011 standards and cost no more than less efficient sets. The regulations will not affect existing televisions that consumers already own or the televisions currently on retail store shelves. Stores will not be prohibited from selling their existing stock of older televisions after the standards go into effect. See the CEC press release and the television efficiency regulations.
WHY JUST CALIFORNIA?
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Global Perspective
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Thank you
• Acknowledgements– UDC Team
– Professors Steve Forrest and Mark Thompson
– Support in part from • US Department of Energy (DE-FC26-08NT01585, DE-EE0003253, DE-FG02-08ER85082, DE-FG02-
07ER84810, DE-EE0000626, DE-FG02-07ER84809 and DE-SC0002122).
• U.S. Army CECOM (# W15P7T-04-C-K606)
• U.S. Air Force (# FA8650-09-C-6017)
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Impact of a Flexible Form Factor for Displays & Lighting
Julie Brown, Universal Display CorporationNational Academy of Sciences Workshop September 24, 2010
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2
2
Why Flexible ? – Looking back in history
Practical to Portable to Convenience to…
Displays
Lighting
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3
3
Portable + Real Time Information+ Vivid Color+ Green Technology
Why Flexible ? – For Displays
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Flexible Design Opportunities
• Non-breakable, light weight, ultra thin• Increased design opportunities
– New shapes– Curved– Rollable
• Enables new concepts– Wearable – Ultimate portability
Tai ChiemAleksandr Mukomelov NOKIA
Tirshathah Hunter
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5
How will flexible displays develop?
Form Factor
Performance : Full-color, vivid, video rate, low power
Bendable Rollable FreeForm• Compact • Total flexibility
• Paper-like• Light and slim• Wearable
Rugged• Light and slim• Rugged
Low Power• Thin and light
Sony
MotorolaE Ink
HItachiE Ink
SiPix
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6
Prototypes – some examples
Polymer Vision
Samsung SMD
ITRI
Plastic Logic
SonyUDC/LGD
LGD
PVI E Ink
Fujitsu
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7
OLED Display Offer High Quality Image
Courtesy of CH Lee, Samsung SDI
Samsung Galaxy S
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8
0 200 400 600 800 100020
25
30
35
40
Tem
pera
ture
[ o C
]
Time [hrs]
Phosphorescent OLEDs: Light without Heat
OrganometallicMolecules Key to100% Efficient
Phosphorescent OLED
* M.A. Baldo, et. al., Nature., 1998
Fluorescent OLEDs: Radiation restricted to singlet excitons, i.e., 1 of 4 spin states or ~25%.
Phosphorescent OLEDs*: Radiation is from triplets, i.e., 4 of 4 spin states or ~100%.
Power Consumption for Mobile PhoneAMLCD Compared to PH AMOLED
Temperature of PHOLED Light PanelPanel at 4500 cd/m2
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9
Flexible Display Video
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1st Field Evaluation at ‘On the Move’
• UDC delivered flexible AMOLED write units to U.S. Army CERDEC
• CERDEC used these units for a first field test at the 2010 C4ISR On The Move Exercises at Fort Dix
0.25 mm thick
5.4 mm thick< 5 ounces
AMOLED Display Packaged Unit Demo in UDC Lab
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Why Flexible … Lighting
Practical to Portable to Convenience to…
Displays
Lighting
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12
Lighting consumes 22% of the electricity generated in the U.S.A.That’s 8% of the total energy consumptionCosts $50 billion per yearReleases 150 million tons of CO2 into the atmosphere each yearMuch of it is 19th century technology with poor efficiencyCompact fluorescent (CFL) is a stopgap measure at best: we need solid state lighting (SSL) to achieve > 50% efficiency
The energy conservation argument... Save the planet!
Courtesy of Paul Burrows, Raeta Research
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UDC Proprietary and Confidential
13Evolution of Lighting
Compact FluorescentLamp (CFL)
1970s
Fluorescent Lamp
1930s
IncandescentBulb
1870s
White LED
1990s
OLEDs using energy efficient Phosphorescent OLED (PHOLEDTM) materials open up exciting new opportunities for efficient white lighting.
Energy SavingsNew Form Factor
10-20 lm/W
30-90 lm/W
100+ lm/W
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2002 2004 2006 2008 2010 2012 2014 2016
20
40
60
80
100
120
140 UDC Pixel (2 mm2) Efficacy UDC Panel Efficacy
Effi
cacy
[lm
/W]
Year
15 cm x 15 cm
15 cm x 15 cm
7.5 cm x 7.5 cm
DOE SSL Targets
Light Source
Luminaire
14
Progress in Phosphorescent White OLEDs
15 cm x 15 cm
Data from UDC Pilot Line
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15
Lighting Video
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16
Lighting Transformation: Flexible Lighting
UDC
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Technology Building Blocks are Maturing
Flexible Encapsulation• Status: Single layer and multi-layer proven• Top Issue: MP COO
Flexible Substrate• Status: Barrier Plastic or Planarized Metal • Top Issue for Display : Backplane selection• Top Issue for Lighting: Substrate system cost
Low Power OLED• Status: Phosphorescent RG and warm
W OLEDs proven, Deep blue available in FL-OLED
• Top Issue: Deep Blue PH Lifetime
Components for Flexible OLED Displays and Light Sources
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Perspective for Next Steps - Technology
Keep momentum for launch of first flexible display productsMilitary application can be first
Start manufacturing based on tested processesApplying continuous manufacturing methods for lightingApplying batch manufacturing methods for displays
Prioritize system level issuesMulti-layer material integration for flex-use integrityUser Interface - both mechanical and electrical
Prioritize flexible white OLEDs - transformation of lighting
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Perspective for Next Steps – Public Policy
FLEXIBLE OLED LIGHTINGMotivate consumer acceptance of higher priced products to launch the market
OLED will not enter, for example, at $2-3/bulb Motivate creation of industrial infrastructure for OLED lighting
Panel + Drive Electronics + FixtureUS Based MP of Lighting Panels
Attract domestic and international companies to manufacture in USA
FLEXIBLE OLED DISPLAYSInsertion of flexible AMOLED displays into the military use
Support the launch of manufacturing by providing a customer baseBroader mandates for energy efficient displays
![Page 67: Challenges and opportunities for the flexible electronics industrysites.nationalacademies.org/cs/groups/pgasite/documents/webpage/… · Challenges and opportunities for the flexible](https://reader033.fdocuments.in/reader033/viewer/2022042309/5ed6442f0c1f140c715b5d51/html5/thumbnails/67.jpg)
UDC Proprietary and Confidential
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Public Policy to Promote Flexible Energy Efficient Displays• California Approves New Energy Efficiency Standards for Televisions
– The California Energy Commission (CEC) approved the nation's first energy efficiency standards for televisions on November 18. When these standards take effect in 2011, new televisions sold in California will be the most energy efficient in the nation. After ten years, the CEC estimates the regulations will save $8.1 billion in energy costs, while avoiding enough energy use to power 864,000 single-family homes. The Pacific Gas & Electric Company estimates that over the course of a decade, the standards will reduce carbon dioxide emissions by three million metric tons. In a typical California home, televisions and related accessories currently account for about 10% of the electricity consumption.
– The technology-neutral standards mandate that new televisions sold in California should consume 33% less electricity by 2011 and 49% less electricity by 2013. The standards affect only those televisions with a screen size of 58 inches or smaller. For example, a 42-inch screen would consume 183 watts or less by 2011 and 115 watts or less by 2013. The CEC noted that more than 1,000 TV models on the market today already meet the 2011 standards and cost no more than less efficient sets. The regulations will not affect existing televisions that consumers already own or the televisions currently on retail store shelves. Stores will not be prohibited from selling their existing stock of older televisions after the standards go into effect. See the CEC press release and the television efficiency regulations.
WHY JUST CALIFORNIA?
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Global Perspective
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Thank you
• Acknowledgements– UDC Team
– Professors Steve Forrest and Mark Thompson
– Support in part from • US Department of Energy (DE-FC26-08NT01585, DE-EE0003253, DE-FG02-08ER85082, DE-FG02-
07ER84810, DE-EE0000626, DE-FG02-07ER84809 and DE-SC0002122).
• U.S. Army CECOM (# W15P7T-04-C-K606)
• U.S. Air Force (# FA8650-09-C-6017)