touch the future flexible, bendable, formable...

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


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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


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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?


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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


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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®


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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”


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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


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CNB Film Generations

Sheet resistivity (/□)

Gen 3 ready for sampling New:

Through PET:

100 /□ at >90%T demonstrated (with AR)


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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


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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


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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


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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%


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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


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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


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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


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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


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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


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Canatu’s product roadmap

• Canatu’s conductive & semiconductive films are flexible & formable

• Enable new device structures, shapes and functions


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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


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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


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Canatu Touch Sensors: Elegantly Simple

Traditional “Canatu”tional


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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

CanaTouchCompilation6b(short).wmv


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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


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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


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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


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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


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Canatu’s product roadmap

• Canatu’s conductive & semiconductive films are flexible & formable

• Enable new device structures, shapes and functions


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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


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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


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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


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Canatu

Now Touch is Everywhere


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Thank You!

Canatu Oy Konalankuja 5, 00390 Helsinki, Finland

www.canatu.com

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