DRIVE | light.touch.matters the object is the interface (part 2)
Light.Touch.Matters is an EU-funded research project that heralds a new generation of smart interactive materials. It brings together product designers and materials scientists in a unique design-driven cooperative effort in which the new materials and their applications are developed in parallel. Learn about these materials and about how these will revolutionize product design, so that "the product becomes the interface". Never before, since its start in 2013, has Project Light.Touch.Matters stepped into the spotlight as it does here. The latest news from its materials stream, design effort and methodological work is on display at DRIVE. Come and see how design-driven materials innovation can be done - and get ready to explore what this could mean for your own technologies, products, or both.
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DRIVE | light.touch.matters the object is the interface (part 2)
- 1. Pim Groen
- 3. 1. Light 2. Touch 3. Integration Pim Groen Holst Centre TU Delft
- 4. Light Heated wire: point source
- 5. Light In theory 100% = 683 lm/W
- 6. OLED Lighting: Anatomy of an OLED device
- 9. 25 cm x 17 cm 10,000 €/m2 Rigid glass Vacuum/litho processes 40-60 % material loss Rare materials 100 €/m2 Flexible substrates Direct printing processes <5% material loss Mainstream materials 2020Now ‘Light’ Organic light emitting diodes (OLED)
- 10. One of the key challenges: How to manufacture these products? Large quantities and large sizes… • roll-to-roll (R2R) manufacturing preferred – easier to make large quantities at low costs • to be build on low cost flex foils – not on polyimide-foil: ~ 50 euro/m2 – but on PET-foil: ~ 3 euro/m2 Printing preferred over lithographic patterning • easier for roll-to-roll processing • fine features without complicated masks Large area flexible electronics, manufacturing
- 12. OLEDs coated on new R2R production line Bottom-emissive OLED on plastic barrier foil Top-emissive OLED on metal foil
- 13. NEW: Transparent Flexible OLED
- 14. Color change (Semi)transparent OLEDs • Currently available in green, blue and red • Allows for independent colour tuning in combination with a red or yellow emitting OLED
- 15. Color change
- 16. Touch
- 17. Touch Keep it simple Piezoelectric materials
- 18. Ceramics: Pb(Zr,Ti)O3 (PZT bulk or fibres) - Polymers: PVDF (+ Copolymers) Stiff & Brittle; High T Complex processing High power density Composites: Flexible Simple processing Good sensor properties Very Flexible Low T Complex processing High Losses Why composites?
- 19. Flexible ‘Touch’ Composite Piezoelectric materials 1 10 100 1000 1,00 10,00 100,00 1000,00 PiezoelectricVoltageSensitivity(g31) [mV.m/N] Young's Modulus [GPa] Polymers Ceramics Single crystals 0-3 Composites PVDF based 0-3 Composites Polymers Ceramics Glass ceramics PZT PT BT Quartz LiTaO3 Single Crystals OLED Flexibility Sensitivity
- 21. DEP Orientation of Lead free Piezo Composite Polymer Structure Filler
- 23. + = Integration:
- 24. 24 STORY /
- 25. LIFESAVER / 25
- 26. Dutch Design Week / Mind the step 26 klokgebouw
- 27. TACTILE TOP LAYER SILICONE SHEET 0,3mm PRINT LAYER TRANSFER PRINT (GRAPHICS) POLYESTER FABRIC (SEMI TRANSP.) PVC MASKING COLOR FILTERS OVERHEAD SHEET TACTILE BOTTOM LAYER EPDM RUBBER 2mm ITO SUBSTRATE TRANSPARENT LAYER CONDUCTING ELECTRICITY EL PRINT EMITTING LIGHT ISO PRINT INSULATING SILVER FROM ITO SILVER PRINT CONDUCTING ELECTRICITY PIEZO PRINT GOLD CONTACTS GLUED TO .. LAYERS /
- 28. Integration: