Ubiquitous Displays and Sensors Activating Surfaces with ... · Automotive Consumer electronics...

Ubiquitous Displays and Sensors Activating Surfaces with Flexible Electronics

Dean Baker, Director FlexEnable

APAC Innovation Summit 2016, Hong Kong

APAC Innovation Summit 2016

Activating surfaces with flexible displays and sensors

25 November 2016 | 2

Consumer electronics Automotive

Healthcare NDT

Flexible Plastic Displays

Flexible Plastic Sensors

Banking and PoS

Wearables Digital Signage

Border control


Partnering to bring OTFT Technology to displays and sensors


FlexEnable OTFT platform

Display Makers Product Companies

Production


OTFT Array Build Manufacturing at Low Process Temperatures

25 November, 2016 | 5

Simple manufacturing processes that are compatible with plastics

• Choice of low cost plastic substrates (TAC / PET / PC) • Low Array Build Total Pitch Distortion (TPD)

• High performance material handling

OTFT Array Build Process Temperatures

Array Build Manufacturing Temperature Cycle

LTPS Array Build > 350 oC

IGZO Array Build > 150 oC

OTFT Array Build < 100 oC


Option to retro-fit existing a-Si lines with OTFT Array Build


Industrial Material Supply Chain

Proven Industrial Processes

Favourable Process Flow

Unique Displays & Sensors


Breakthrough Organic LCD on low cost plastic substrates


• OTFT process compatibility with existing LCD manufacturing • Ultra-thin, light, robust and conformable plastic OLCD displays • Easily formed around bend radius down to 35mm • 130 micron thin glass-free stack • Easily cut into non-square & irregular shapes

Conforming an OLCD to a curved surface In partnership with

Presenter

Presentation Notes


Example: Conformable OLCD with curved backlight


Example backlight uniformity

LED edge input

100mm from LEDs

88% Uniformity

Small drop-off (10%) in brightness seen with decreasing radius of curvature.

APAC Innovation Summit 2016 25 November 2016 | 10

Plastic OLCD can achieve same performance as colour a-Si LCD displays

Current Organic Semiconductors 3X a:Si Ongoing Rapid Performance Development


Organic Semiconductor Mobility Performance Progression

10

1

0.1

0.01

2011 2012 2013 2014 2015 2016 ….. 2020

EPD Focus

Carr

ier M

obili

ty c

m2/

Vs

Diverse Applications

In Production Next Generations

25 November 2016 | 11

a:Si TFT Mobility


OTFT: Extremely low leakage currents

25 November 2016 | 12

• Enable lower display refresh rates = power saving for static images • Higher signal-to-noise ratio = lower X-ray dose for X-Ray Sensor


Currently Polymer OSC materials provide best results manufacturing – but both materials types are developing

25 November 2016 | 13

Small molecule semiconductors

• High mobility 1-10 cm2/Vs

• Polycrystalline microstructure – Main issue: uniformity

S

SCnH2n+1H2n+1Cn

Cn- BTBT

SiR3

SiR3 R=iPr

TIPS-pentacene

S S

C16H33 C16H33

n

N SN

S S

C16H33 C16H33

N

N SN

n

N

NS

S

O

O

R

R

Ar

Conjugated polymers

• Near-amorphous microstructure: Good large area uniformity and excellent mechanical properties

• Until recently, performance and stability lower (Mobility 1-5 cm2/Vs)


Low Cost Direct Solution Coating used for Plastic OLCD

25 November 2016 | 14

Colour Photoresists

Photo Alignment Layers

Polymer Pixel Dielectric

Polymer Gate Dielectric

Polymer Semiconductor

Polymer Planarization

Polymer Hard Coating

Direct Solution Coating

TAC – Cellulose Triacetate

TAC – Cellulose Triacetate

Section of Plastic OTFT LCD Cell (FFS Mode)

Replacing expensive PI and PECVD SiOx & SiNx with low cost direct solution coating


Plastic OTFT for Image and X-Ray Sensors

25 November 2016 | 17 17

Organic Photo Diode (OPD) Deposition [Partner]

OTFT Array Fabrication [FlexEnable]

Image Sensor [Partner]

X-Ray Detector [Partner]

Scintillator Layer

OPD

OTFT Array


FlexEnable & ISORG: Thin Plastic High Security Biometrics

Imaging Fingerprint Barcode Reading Vein recognition

• Large area Fingerprint and Vein Sensor on plastic • Biometric sensing wrapped surfaces

• Cost effective manufacturing of large area sensors

Demonstrated with FlexEnable/ISORG technology

OPD stack

Plastic substrate

OTFT stack ~300um


Advantages of FlexEnable / ISORG optical FP and vein sensor

25 November 2016 | 21

• High sensitivity than capacitive fingerprint sensors • Large area = better reliability / quicker detection • The image can be taken in one shot as the sensor

can be conformed to the finger

• No additional glass optics required • Multi-spectral imaging = less susceptibility to

contaminants, improper contact or bright ambient lights Parameter Array specifications

Sensor size 3” x 3.2” (FAP 60)

Resolution 500 dpi

Resolution 1536 x 1600

Pixel pitch 50.8µmx50.8µm


Flexible X Ray Sensors

• Shatterproof, with near zero incremental thickness and weight

• Enables X-ray systems to go anywhere – to RTA’s1, around pipework, mobile systems

• Conformable around the body – improves accuracy and patient comfort

Industry Applications

1: Road Traffic Accidents


Thank You

www.flexenable.com [email protected]

http://www.flexenable.com/

mailto:[email protected]

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