IMOLA - IMEC...IMOLA = Intelligent Light Management for OLED-on-Foil Applications EU-FP7 research...
Transcript of IMOLA - IMEC...IMOLA = Intelligent Light Management for OLED-on-Foil Applications EU-FP7 research...
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 1
IMOLA a modular and interactive
OLED-based lighting system
Jan Doutreloigne, imec project coordinator
www.imola-project.eu
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 2
Outline
Facts and figures IMOLA concept Technical objectives / challenges Project demonstrators Partner involvement Driver IC design Questions & answers
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 3
Facts and figures
IMOLA = Intelligent Light Management for OLED-on-Foil Applications
EU - FP7 research project (STREP, ICT) Duration = 3 years Started on Oct. 1st, 2011 Balanced consortium of 8 partners:
3 academic and research institutes 5 private companies
6 nationalities: Belgium, Netherlands, Germany, Croatia, Italy and Israel
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 4
IMOLA concept
Current OLED technology developments focus on material research, higher efficiency, low-cost production,...
However, for fully exploiting the potential of OLED-on-foil technology in a lighting system, new developments in other domains are needed: Driving electronics Power distribution Integration & miniaturization Interaction with human environment, based on sensors ...
⇒ IMOLA wants to bridge this gap!!!
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 5
IMOLA concept
Interactive, modular, flexible, large-area, OLED-based lighting system on low-cost foil with built-in intelligent light management
Laminated together
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 6
IMOLA concept
3D impression:
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 7
IMOLA concept
Electrical connection:
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 8
IMOLA concept
Advantages of the modular architecture: HV power supply in combination with local down-conversion
to suitable OLED voltage reduces the conduction losses in the power supply tracks → increased power efficiency
Possibility of displaying patterns instead of uniform lighting Sensor-based human/ambient interaction capability: light
on a wall/ceiling can follow the position of a person or mimic a person’s gestures, touch screen, reaction to sound,…
Local control allows compensation of OLED ageing effects or compensation of brightness non-uniformity → increased life-time and better brightness uniformity
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 9
Technical objectives / challenges
Backplane technology: Development of low-cost flexible backplane (PET + Al) Process for IC mounting on backplane foil (flip-chip, UTCP) Development of suitable adhesives and ferrite pastes Lamination of OLED tiles (on foil or glass) onto the
backplane foil Reliable electrical interconnection between OLED tile,
driver IC and embedded inductor ...
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 10
Technical objectives / challenges
Backplane technology: Development of low-cost flexible backplane (PET + Al) Process for IC mounting on backplane foil (flip-chip, UTCP) Development of suitable adhesives and ferrite pastes Lamination of OLED tiles (on foil or glass) onto the
backplane foil Reliable electrical interconnection between OLED tile,
driver IC and embedded inductor ...
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 11
Technical objectives / challenges
Backplane technology: Development of low-cost flexible backplane (PET + Al) Process for IC mounting on backplane foil (flip-chip, UTCP) Development of suitable adhesives and ferrite pastes Lamination of OLED tiles (on foil or glass) onto the
backplane foil Reliable electrical interconnection between OLED tile,
driver IC and embedded inductor ...
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 12
Technical objectives / challenges
Backplane technology: Development of low-cost flexible backplane (PET + Al) Process for IC mounting on backplane foil (flip-chip, UTCP) Development of suitable adhesives and ferrite pastes Lamination of OLED tiles (on foil or glass) onto the
backplane foil Reliable electrical interconnection between OLED tile,
driver IC and embedded inductor ...
Rigid OLED-on-glass (Philips)
Flexible OLED-on-foil (TNO-Holst)
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 13
Technical objectives / challenges
Driver IC + inductor: Design of high-performance embedded inductor based on
very tough targets (inductance, parasitic resistance and capacitance, resonance frequency,...)
Development of accurate inductor model Design of power-efficient high-frequency OLED driver IC EMC-compliance (radiated + conducted emission) ...
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 14
Technical objectives / challenges
Functionality: Compensation of OLED degradation and non-uniformity based
on electrical measurements Integration of central + local intelligence for enhanced sensor-
based interaction with the human environment Inter-module communication (DALI protocol) ...
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 15
Project demonstrators
General lighting demonstrator: (Philips)
Wall light
Goal: alternative for Philips “Living Shapes” wall light, featuring reduced cost, reduced weight, reduced thickness and fully integrated electronics on a flexible backplane
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 16
Project demonstrators
Automotive lighting demonstrators: (CRP)
Tail light Dome light
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 17
Project demonstrators
Intermediate demonstrators:
INDUCTOR 1 INDUCTOR 2
INDUCTOR 3 INDUCTOR 4
ELECTRONICS
OLED 1 OLED 2
OLED 4OLED 3
+ =
Sensor-based interaction Intelligent backplane
Flexible tail light
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 18
Partner involvement
Academic and research institutes: Imec: • Project coordination • OLED driver IC design • Backplane technology development
TNO-Holst: • Supply of OLED-on-foil cells • Backplane technology development • Investigation of sensor options for interaction with human
environment
Zagreb University: • Embedded inductor design • EMC analysis • Implementation of compensation algorithm • Implementation of system-level communication
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 19
Partner involvement
Private companies: Hanita: • Supply/development of PET + Al foils
Henkel: • Supply/development of ferrite pastes • Supply/development of adhesives for lamination + interconnection
CRP: • Design/development of automotive tail
light and dome light demonstrators
Philips: • Supply of OLED-on-glass cells • Design/development of wall light demonstrator
Fundico: • Project administration • Reporting • Logistics
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 20
Driver IC design
Switching DC-DC buck converter with PWM control:
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 21
Driver IC design
Switching DC-DC buck converter with PWM control:
Current sensing + feedback to control the OLED brightness!
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 22
Driver IC design
Block diagram of OLED driver IC “COLD”:
Electrical feedback loop for OLED brightness control
DC-DC buck converter power stage
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 23
Driver IC design
Layout of OLED driver IC “COLD”: 0.35µm 80V I3T80
technology of ON Semiconductor
Die size: 12mm2
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 24
Driver IC design
Example: measured HV output pulses @5MHz
IMOLA | Final Workshop – Barcelona – 06.05.2014 | Jan Doutreloigne Slide 25
Questions & answers