Touch Sensor Solutions Based on Transparent Conductive Films Martin Schewe Dipl.-Ing.(FH) PolyIC GmbH & Co. KG ISO 9001:2008 certified
PolyIC A member of the KURZ Group PolyIC develops and markets products based on the platform technology printed electronics www.polyic.com PolyIC Smart and flexible printed solutions KURZ is a major international supplier of hot stamping technology www.kurz.de 2
Touch new trend Most applications from the fields of phones / tablets / notebooks, but others are growing more and more 2012: others approx. 300 Mio units Source: IHS/Displaybank 2012 3
Examples of touch in the field of others ATMs Automotive POI / Self Check in Industry Automation Navigation Digital Camera Gaming MP3 player Bildquelle: Display Search 2012, Touch panel market analysis, PolyIC 4
Touch trends automotive from IAA 2013 5
Touch technical basics Different touch technologies are available Resistive touch Two conductive films are placed one above the other separated and pushed against each other Touch is simple and cheap, pen recognition possible No multi touch Projected capacitive touch Physical principle: human finger acts as part of a capacitor Two basic types single touch or self capacitive multi touch or mutual capacitance Today standard in consumer electronics More touch systems E.g. infrarot, surface acoustic wave, optical, in-cell, etc. Source: Wikipedia 6
Transparent Conductive Film Transparent conductive films offer huge possibilities in growing optical markets Transparent conductive films 7
PolyIC s Printed Electronics Platform for printed touch sensor films Roll to Roll production substrate substrate thickness web speed web length PET (Polyester) 50 µm (typical) > 30 m/min up to 5 km High quality multilayer setup of conductive, semiconductive and other functional films metal layer thickness < 100 nm polymer layer thickness 50-500 nm Minimum structure size ~ 10 µm Roll-to-Roll printed electronics platform for smart and flexible printed solutions 8
Individual high resolution layout Micron structured metal mesh on flexible Polyester (PET) (patents pending) Transparent Conductive Film 9
Transparent Conductive Film High market potentials in many kinds of applications Application-examples: Touch screens Touch controls Transparent conductive films EMI Films Heating films Electrodes e.g. OPV, OLED, OFET, displays Further Applications like e.g. ESD, flexible circuit board 10
Transparent Conductive Film General properties Property Substrate Overall sensor thickness PolyTC conductive material Resolution of metallic structures Typical value PET (typically 50µm) ~50µm 75µm (depending on layer setup; customized) Metal mesh (Ag or Cu) < 10µm (higher possible) Width of wiring > 60µm Sensor layout Form of delivery Customized Single sensors or transparent conductive film on roll 11
Mobile applications Touch screen Touch Sensors 12
Layer Stack High quality multilayer setup for R2R printed touch sensors Wiring Viewing area Protection layer Wiring Contact enhancement Substrate (PET) Individual layout including tail, traces and contact enhancement possible PolyTC Metal layer with min. 10µm resolution 13
Touch Sensor Example of PolyTC multi touch sonsor film (one layer) Integrated tail (not available using ITO sensors) Touch area Contact Enhancement Wiring Customized layout for mutual- and selfcapacitance sensors 14
Touch Sensors Consumer & home appliance applications Touch control panel with capacitive touch pad Touch control buttons or sliders 15
Applications Home Appliance Example: Microwave touch control panel 16
Automotive applications Touch Sensors Touch control panel with touch screen or touch pad Center stack with touch buttons, sliders or control knobs 17
Integrated Sensors Combination of IMD-/IML-film L. Kurz & PolyIC, together with partners Center Stack demonstrator Sensor single touch (PolyIC): buttons, slider, rotary knob Sensor multi touch (PolyIC): touch pad with up to 10 finger recognition Decoration (Kurz): IMD single picture 18
Integrated Sensors Demonstration with build in Center Stack lens different touch slider and button applications control of two separate air vents over central rotation knob multitouch sensor in touchpad area for navigation in display 20
Transparent Conductive Films Heating elements as application in automotive products Application as fog protector within vehicle rear view camera transparent film including heating function to avoid icy camera lenses to be applied directly onto optical lenses 21
Transparent Conductive Film PolyTC films offer huge potentials for many applications PolyTC films offer high performance touch sensor solutions & more Integration with IML and combination with KURZ IMD decoration possible Available in Roll-to-Roll production for high volume applications 22
Thank s for your attention, please contact us for further discusison PolyIC GmbH & Co. KG Tucherstr. 2 90763 Fuerth Germany Tel: +49 911 2 02 49-0 Fax: +49 911 2 02 49-80 01 E-Mail: info@polyic.com Web: www.polyic.com 23