P H I I ST-2004-4354 Dr. Eliav Haskal Coordinator Philips Research eliav.haskal@ philips.com Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 1
P H I W hat is a Flexible Display? “A technology for making flat panel displays on thin, flexible substrates”. • The technology is suitable for a variety of applications. • The applications use different attributes of the technology. • The substrates might be glass, metal or polymer. • The display might not be flexible in its application . Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 2
P H I FlexiDis • FlexiDis focuses on direct preparation of active matrix circuitry on novel substrates, including metal and plastic. Why active-matrix? Because active-matrix displays have the potential to impact the largest range of display products. • The display effects being tested for use in flexible displays include O LED and Electrophoretics. Thin display effects with excellent viewing angles Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 3
P H I Goals of FlexiDis FlexiDis will work on the development of materials and process technology, with a connection to industrial equipment and handling, to demonstrate: • Bendable/Rollable display (in a small volume) • Video display (full-color, ultrathin) The possibility of setting these two displays in different markets (including telecom, automotive, …) will be analyzed. Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 4
P H I Flexible = • Flat square • Flat non square • Curved (1D) • Conformable (2D) • Bendable (1D) • 1x Foldable (1D) • Fully Roll able (1D) Business week week Business Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 5
P H I Demonstrator Displays • Rollable Display Electrophoretic displays on flexible plastic substrates with organic thin-film driving transistors, • Video display (full-color, ultrathin) Full-color, ultrathin organic light- emitting displays (OLED) prepared No direct-deposited directly on bendable metal and/or AMOLED examples plastic foils with inorganic thin-film X driving transistors for video applications. *SUFTLA, Seiko-Epson Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 6
P H I W hat are the challenges for flexible displays ? • Substrates – Properties, coatings and permeability • Processing and Patterning – Dimensional stability and thermal expansion mismatch • Mechanics + Reliability – Bending and cracking – Display design, coatings and substrates • Industrialization, Cost and Market Scenarios Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 7
P H I Technical W orkpackages Basic research on the necessary enabling processand materialstechnologies for both • inorganic and organic TFT fabrication, including work on organic TFT materials, low temperature poly-Si processing suitable for flexible substrates, and microcrystalline Si, Display fabrication, including interconnects, driving electronics, for both • electrophoretic displays and OLED (both small-molecule and polymer) integration in top-emitting structures, The improvement of flexible plastic and metal substratesand moisture barriers • suitable for silicon thin film transistor and display processing, The creation of distortion measurement and compensation systems for patterning on • flexible foils using ink jet printing and photolithography, In-depth physical studies of the mechanical properties and materials behavior of • multilayer composite structures under flexing, Flexible display reliability standards and testing methodologies, and handling • concepts for manufacturing of flexible displays, Market studies and product definition for automotive, mobile telecommunications • and toys, and Constant benchmarking of different display types, substrates and active-matrix • technologies. Training, Innovation and Dissemination activities, Exploitation of results • Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 8
P H I FlexiDis Roadmap St art : 2004 2005 2006 2007 2008 Substrate Polymer / barrier subst rat e Polymer subst rat e Met al f oil Thin Film Transistor Microcryst alline- Si Low- Temperat ure poly - Si Organic Display Effect Ot her Organic Elect roluminescence Elect rophoret ics Degree of Flexibility Conf ormal / Curved Rollable Bendable Production Technique Sheet by Sheet Handling Roll t o Roll FlexiDis durat ion (36 mont hs) Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 9
P H I FlexiDis Partners 1. Philips Research (UK and N L) 11. N okia Research 2. Thomson Research (F and D) 12. Plastic Logic 3. STMicroelectronics 13. Institute of Polymer Mechanics, 4. Avecia Univ. Latvia 5. Ecole Polytechnique Federale de 14. N ovaLED Lausanne 15. ASML 6. Unaxis Displays (F) 16. LEGO 7. Univ. Stuttgart 17. BMW 8. CEA-LETI 18. CN RS-EP, Ecole Polytechnique 9. CN R Roma Palaiseau 10. Philips Center for Industrial 19. IMEC Technology (CFT) 20. University of Cambridge Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 10
P H I Display Human Factors Materials R & D EU characterization EPFL LEGO NOK BMW AVE IPM Materials Packaging & Market Research characterization Interconnects R & D End Users CNR IMEC USTUTT CNRS-EP STM Backplane R & D Systems Eng. R & D LETI UCAM PLL TDTB Device Integrators Manufacturing R & D CFT PRL TRDF Display EO User needs NOVA Effect R & D Acceptance Criteria Display Module PRL-E Manufacturers Display Materials Suppliers Module Specification FER Display Manufacturers Equipment Manufacturers for Display Display fabrication Specification UNX-F ASML Material Selection, Equipment spec. Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 11
P H I I ST-2004-4354 Haskal, 26-10-2004 PRO PERTY OF FLEXIDIS 12
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