touch the future flexible, bendable, formable...
TRANSCRIPT
September 5, 2012 Confidential 1
Touch the Future
Touch the Future
Confidential
FLEXIBLE, BENDABLE, FORMABLE NANOBUD® BASED
ELECTRONIC COMPONENTS BY DIRECT DRY
PRINTING®
David Brown
2012.10.09
PE 2012
Dresden
September 5, 2012 Confidential 2
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Trends in Mobile Electronics
New functions & form factors drive market
Consumers want
– Large “use” size but small / ultra-thin “carry” size
– Robust / Unbreakable
– High performance
– Low price
Producers want
– Clear Differentiation (e.g. Apple vs. Samsung patent war)
– Low Cost (e.g. Apple vs. Nokia market share war)
– Clean and Safe (e.g. Apple vs. ZTE green war)
NOKIA
APPLE
CANATU
September 5, 2012 Confidential 3
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Core Competence
– Novel carbon nanomaterials, synthesis processes and R2R manufacturing
– Robust, flexible, formable, bendable thin film electronic components
Business Model
– Produce and Sell: Robust, flexible, formable, bendable touch sensors (now)
Integrated circuits, lighting, displays, solar cells (in 3 yrs)
How Does Canatu Address This?
September 5, 2012 Confidential 4
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Canatu’s Answer to Market Pull
Improve performance
– Look (contrast, transparency, haze, tint, thinness)
– Ruggedness (shock, heat, cold, moisture, UV proof)
– Efficiency (lower resistance, better algorithms)
Bring new cost efficiencies
– Simpler component structure
– Cheaper, simpler, greener materials/process
– Higher yield / lower cost
Enable new design possibilities
– Flexibility, bendability, thermoformability
– 3D, twistable, rollable, foldable
– Facilitate touch anywhere on anything
SAMSUNG
NOKIA
Kinetic
September 5, 2012 Confidential 5
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How Does Canatu Do It? New Material and Processes
Invented Carbon NanoBuds® material
– Novel material: Hybrid of Carbon Nanotubes (CNT) & Fullerenes
– Improves electrical, chemical properties over CNTs
Invented Direct Dry Printing® manufacturing process – Results in pure, high quality films with superior performance
– Roll-to-roll process under development
Traditional CNT network (before purification)
NanoBud® network (no need for purification)
Carbon NanoBud®
September 5, 2012 Confidential 6
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First Target Market: Transparent Electrodes (ITO replacement)
CONDUCTIVE, TRANSPARENT, FLEXIBLE, ROBUST
ELECTRICITY ELECTRICITY
Solar Cell E-Paper, TouchScreen, Haptic Display
LIGHT LIGHT LIGHT
Thin film of NanoBuds® on a transparent substrate
“Beyond ITO”
September 5, 2012 Confidential 7
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Brown’s law: Average sheet resistivity reduction 50% each year (since 2007)
CNB sheet resistivity
Samples now
Lab results now
Planned transmission specification in 2013
100 Ω/□ 89% 93% 94%
150 Ω/□ 93% 95% 96%
270 Ω/□ 96% 97% 98%
10 kΩ/□ >>99% >>99%
CNB Film Development
CNB film, normalized to substrate.
Sheet resistivity (/□)
Roadmap for 2013
September 5, 2012 Confidential 8
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CNB Film Generations
Sheet resistivity (/□)
Gen 3 ready for sampling New:
Through PET:
100 /□ at >90%T demonstrated (with AR)
September 5, 2012 Confidential 9
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Display images are washed out by ITO based touch sensors due to reflection
Current state-of-the art for improving contrast: – Circular polarizers / moth eye films: Expensive
– LCD analyzer: Requires in/on-cell integration
– Color filter: Requires in-cell integration
– Non TC (e.g. IR, SAW) based touch: Multiple issues
CNB based touch sensors reduce reflections and increase contrast ratio
Background on Contrast
Emissive LCD Display
Reflective E-Paper Display
September 5, 2012 Confidential 10
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CNB CR1 = 51:1 CR2 = 9:1
Standard ITO CR1 = 21:1 CR2 = 3:1
None (anti-grare) CR1 = 34:1 CR2 = 6:1
High perf. ITO CR1 = 46:1 CR2 = 3:1
CR1 – Contrast in stnd. office: cloudy day ( ~300 lux) CR2 – Contrast near window: sunny day (~2000 lux)
Bare display luminance 184 cd/m2, CR=262:1 at dark. Laminated two-layer (G)FF sensors, PET substrate.
Contrast Enhancement: LCD Display
September 5, 2012 Confidential 11
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CR1 – Contrast in office lighting (300-500 lux) CR2 – Contrast in overcast daylight (~2000 lux)
Contrast Enhancement: E-Paper
None (anti-grare) CR1 = 10:1 CR2 = 4:1
Standard ITO CR1 = 9:1 CR2 = 3:1
CNB CR1 = 10:1 CR2 = 5:1
High perf. ITO CR1 = 11:1 CR2 = 3:1
September 5, 2012 Confidential 12
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How CNB Films Enhance Display Contrast
Contrast ratio with ITO sensor is 10:1
Assumptions:
- ITO sensor transmission 88%, reflectivity 10%
Example: - Display luminance 160 cd/m2 (e.g. 500 lm/m2) - Ambient illumination level 500 lux (e.g. 500 lm/m2, normal office lighting)
500 lm
500 lm
440 lm
88%T
10%R
50 lm
Tot: 490 lm
500 lm Tot: 50 lm
~0 lm
10%R
Fully white Fully black
500 lm
500 lm
430 lm
86%T
4%R
20 lm
Tot: 450 lm
500 lm Tot: 20 lm
~0 lm
4%R
Fully white Fully black
ITO sensor
LCD display
CNB sensor
LCD display
Contrast ratio with CNB sensor is 23:1
Assumptions:
- CNB sensor transmission 86%, reflectivity 4%
September 5, 2012 Confidential 13
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Clear Contrast Improvement on LCD
Contrast ratio vs. ambient illumination for a 180 cd/m2 LCD:
– CNB sensor contrast enhancement over ITO: 3X in office lighting (CR = 32 vs. 11)
– Reducing washout by 50% in bright daylight (CR = 1.8 vs. 1.2)
Sensor optics:
ITO sensor transmission 88.2%
ITO sensor absorption 1.0%
ITO sensor reflection 10.8%
CNB sensor transmission 86.6%
CNB sensor absorption 10.0%
CNB sensor reflection 3.4%
1,0
10,0
100,0
100 1000 10000 100000
CR (CNB, Theory)
CR (CNB, Measured)
CR (No sensor, Theory)
CR (No sensor, Measured)
CR (ITO1, Theory)
CR (ITO1, Measured)
Ambient illumination (lux)
White/B
lack C
on
trast ra
tio
September 5, 2012 Confidential 14
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CNB Films Stretchable to over 100%
Canatu, 2012
Lafter
Lbefore
Stretching vs. Resistivity Change
Stretchability Rate (%)
Res
ista
nce
Ch
ange
Rat
io
0
5
10
15
2
0
0 20 40 60 80 100
Competitor “Flex” Transparent Conductors
ITO
September 5, 2012 Confidential 15
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CNB Films Bendable to 0.5 mm Radius
Sheet resistance change saturates below 13 % of the starting value
0 20 40 60 80 100 120 140 160
0%
2%
4%
6%
8%
10%
12%
14%
180 degree Bending
Tension and Compression Were Done on the Same Sample
R0.5mm Tension
R0.5mm Compression
R1mm Tension
R1mm Compression
R1.5mm Tension
R1.5mm Compression
No. of Bends
% I
ncre
ase
in R
esis
tance
Number of Bends
September 5, 2012 Confidential 16
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Best Good Average Bad Worst
Films for Flexible Touch
Carbon NanoBuds® on PET
(Dry Printed)
ITO on PET
Other CNTs
Silver nanowires
PEDOT Graphene
Now 2013 Sputtered Wet on PET Wet on PET
Wet on PET
Crazy
Electro-optical
Transmittance for 270 ohm/sq
(through PET substrate)
Refractive index
Contrast = readability
Haze
Color neutrality
Environmental
&Mechanical
Thermal/UV stability
Bendability / Foldability
Stretchability / Thermoformability
Chemical stability
Environmental Impact
Production
Process Simplicity
Product Simplicity
Ready for industrial production
Potential for further improvement
Cost of patterned 300 ohm/sq film
September 5, 2012 Confidential 17
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Canatu’s Touch Sensor Applications
• E-Readers: – Paper-like look and feel
– Thin form factor
– High transmission, low reflectivity => high contrast
– High mechanical flexibility and robustness
• Mobile phones and tablets: – New functionalities for curved & flex form factors
– ITO replacement for better visual performance
• Connected accessories and watches – Novel dynamic shapes
– New forms of interaction
• Automotive, industrial and household – Excellent formability
– Seamless and ultra clean appearance
– Simple structure and robust
Industry drivers
• Differentiation
(design, functionality)
• Cost
• Performance
• Supply
(replace ITO)
Canatu Touch
• Flex/Formable
• Simple
• Carbon
based
September 5, 2012 Confidential 18
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Canatu’s product roadmap
• Canatu’s conductive & semiconductive films are flexible & formable
• Enable new device structures, shapes and functions
September 5, 2012 Confidential 19
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6
24
35
85
100
500
2930
Stack Configurations for Pro-Cap Touch
Canatu customizes touch sensors in various configurations for lamination on: Glass
Flexible plastic
3D / shaped plastic
September 5, 2012 Confidential 20
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Unique operation principle & performance
Key Benefits:
– Flexible and Thermoformable
– Durable
– Ultra High Transparency
– Ultra-Thin
– Simple construction
– Low frequency
– Large Area
– Senses both fingers and objects
– Integratable with haptics
CanaTouch® Touch Sensor
New:
Dome shaped sensor demonstrated with SMK in Japan
September 5, 2012 Confidential 21
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Canatu Touch Sensors: Elegantly Simple
Traditional “Canatu”tional
September 5, 2012 Confidential 22
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Combined Touch Screen and Mechanical Button
Replacement Film with Haptic Feedback*
Single Canatu
NanoCarbon film
Thermoformed over
display and phone casing
Replaces both touch screen
and mechanical buttons
*Patents Pending
http://laffan.lunarpages.com/~canatu2/temp/CanaTouchCompilation6a.wmv username: extra1 pswd: smalley1
September 5, 2012 Confidential 23
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ITO
Projected
Capacitive
NanoBud®
Projected
Capacitive
ITO
Resistive
NanoBud®
Resistive
Infra-red Frustrated
Total
Internal
Reflection
Planar
Scatter
Detection
CanaTouch®
Accuracy o o - o + o o o
Thickness o + o o - - o +
Power Consumption
o o + + o - - o
Multi-touch + + o + - + + o
Simplicity - o - o - - - +
Touch Object - - + + + o o o
Invisibility o o - o + - + +
Force Sensing - - - - - o o +
Durability + + - + o o o +
Sensitivity + + o + - + + (-)* +
Size - - o o + + + +
Flex- / Formability - + - o - - o +
Comparison of Touch Technologies
September 5, 2012 Confidential 24
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Canatu’s Products for Touch
Customized Touch Sensors for
Flexible and Formable (3D) Touch Modules
Generic benefits
• Enables flexible or formable (3D) devices
• Good electro-optical performance
• Simple thin stack structure
Sensors for CanaTouch ®
• Unique proprietary touch method
• Non-patterned active touch area
Special benefits
• Superior optical clarity
• Simple and non-patterned thin stack structure for lowest cost
Product Group 2
Sensors for Pro-Cap touch
• Patterned CNB in active touch area
Special benefit • Can use proven touch method and
electronics
Product Group 1
September 5, 2012 Confidential 25
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Product idea
Similar Business Model in Both Approaches
Touch Module
Controller IC Canatu’s CNB
Capacitive Sensor
Connector, flex cables etc.
OEM CUSTOMER
Touch Module
Controller IC
CanaTouch®
Sensor
Connector, flex cables etc.
OEM CUSTOMER
Algorithm
CAPACITIVE MODULE CANATOUCH MODULE
September 5, 2012 Confidential 26
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Canatu’s Production Facility Helsinki, Finland: 1200 m2 production space
Customer sample production started: 1400 touch sensors / day
Installed reactor capacity: ~1 M touch sensors / yr
September 5, 2012 Confidential 27
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Canatu’s product roadmap
• Canatu’s conductive & semiconductive films are flexible & formable
• Enable new device structures, shapes and functions
September 5, 2012 Confidential 28
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Future Applications Flexibility, Formability, Design Freedom
Transparent conductors for Displays,
OLED lighting, Solar Cells
– Carbon NanoBuds® in conducting form - enable
transparent conductors
– High conductivity by combining with metal grids,
and/or by Brown’s law development
Integrated Circuits for Display Backplanes
– Carbon NanoBuds® in semiconducting form
– Enables e.g. printed display backplanes and
sensors, replacing rigid electronics in current
and novel applications
• High value, rollable / bendable displays
• Low cost and robust E-signage
• Low cost, ubiquitous sensors
September 5, 2012 Confidential 29
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World’s Best CNT TFT: On/off = 6x106, mobility = 35 cm2/(V*s)
Sun et al., (2011) Nature Nanotechnology DOI: 10.1038
TFT from Canatu Processes
September 5, 2012 Confidential 30
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1. Profile: Leading in innovation and hungry for growth
2. NanoBud® films: Excellent optical performance and
simplicity for flexible and formable touch
3. Touch sensors: Flexible, invisible, elegantly simple
4. Status: Building the supply chain now to enable the
touch of the future
5. Plan: Will be a key enabler for flexible electronics:
Display electrodes & backplanes, OLED lighting, PV
Summary