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Touchscreen Technology: VDC-Whitepaper

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Touchscreen Technology: VDC-Whitepaper

  1. 1. Whitepaper Touchscreens Technologies, Applications © Competence Centre for Virtual Reality and Cooperative Engineering w. V. – Virtual Dimension Center (VDC) Dr.-Ing. Dipl.-Kfm. Christoph Runde Virtual Dimension Center (VDC) Fellbach Auberlenstr. 13 70736 Fellbach www.vdc-fellbach.de Technologies, Applications
  2. 2. Content History Examples of applicationTechnologies Literature & SourcesContent Overview History Technologies Examples of areas of application Literature & Sources Content
  3. 3. Content History Examples of applicationTechnologies Literature & SourcesContent History – Technologies 1974 First transparent touch display (Dr. Sam Hurst) 1979 Capacitive touchscreen (3M) 1982 Resistive touchscreen (Elo Touch Systems) History – Products (extract) 1993 Apple Newton (PDA) 1996 Palm Pilot (PDA) 2002 Windows XP Tablet Edition 2004 Nintendo DS 2007 Apple IPhone, Microsoft Surface History 1984 Multitouch display (Bob Boie, Bell Labs) 2007 Apple IPhone, Microsoft Surface 2008 Google Android 2010 Apple IPad
  4. 4. Content History Examples of applicationTechnologies Literature & SourcesContent Technology 1: Resistive Touchscreens Functionality Position detection by resistance measurement of electrically conductive layers, which are connected by pressure on the display. Construction methods Schematic representation (VISAM) Technologies Construction methods o Four-/Eight – Wire Time division, diminishing precision due to mechanical stress o Five-/Six-/Seven – Wire Avoiding diminishing precision by measurement between the lower and an additional inner layer Schematic representation (Wikipedia)
  5. 5. Content History Examples of applicationTechnologies Literature & SourcesContent Technology 1: Resistive Touchscreens Advantages o Simple & inexpensive construction o Operable with any object o High resolution o Insensitive to dirt Technologies o Insensitive to dirt Disadvantages o Mechanical stress (pressure) o Difficult operation by strong pressure on the display Example input via pen (Wikipedia) HTC Compact (T-Mobile/HTC)
  6. 6. Content History Examples of applicationTechnologies Literature & SourcesContent Technology 2: Capacitive Touchscreens Functionality Metal oxide coated display whereby an applied voltage at the corners creates an electric field. Position determination by current measurement (discharge cycle). Technologies Other construction: Two orthogonally superimposed strips: sensor & driver. Finger over the crossing point changes the capacity. Schematic representation (VISAM)
  7. 7. Content History Examples of applicationTechnologies Literature & SourcesContent Technologie 2: Capacitive Touchscreens Advantages o Only touch necessary, without pressure o Clear display o Low sensitivity to mechanical damage o Insensitive to dirt Technologies o Insensitive to dirt Disadvantages o Can only be operated with a bare finger or a special stylus o Higher price Apple IPhone (Apple Inc., Image: Engadget.com)
  8. 8. Content History Examples of applicationTechnologies Literature & SourcesContent Technology 3: Inductive Touchscreens Functionality The input device contains a coil which is exposed to the inductive field of the touchscreen. This determines the X/ Y position, the distance and the tilt angle of the input device. Technologies the input device. Inductive graph tablet (mybamboo.eu)
  9. 9. Content History Examples of applicationTechnologies Literature & SourcesContent Technology 3: Inductive Touchscreens Advantages o Operable only with appropriate input devices o Possibility to detect the inclination and distance of the input device Technologies Disadvantages o Special input devices necessary Graph tablet (Aiptek)
  10. 10. Content History Examples of applicationTechnologies Literature & SourcesContent Technology 4: Surface Acoustic Wave (SAW) Touchscreens Functionality Structure-borne sound waves spreading in a planar manner on the surface. Touching the surface changes the amplitude, which is measured for position detection. Technologies Advantages o Vandalism-proof, as damage to the upper layer does not cause any impairment o Clear display (no grid) Schematic representation (Planar Systems, Inc.)
  11. 11. Content History Examples of applicationTechnologies Literature & SourcesContent Technology 5: Optical Touchscreens Functionality Light curtain (e.g. infrared) for detecting the position. Tracking the input devices through cameras. Technologies Advantages o Vandalism-proof, as damage to the upper layer does not cause any impairment Schematic representation (Planar Systems, Inc.)
  12. 12. Content History Examples of applicationTechnologies Literature & SourcesContent Technology 6: Dispersive Signal Functionality Sensors on a glass substrate on the back of the screen measure the vibrations that occur when touched. Technologies Advantages o Vandalism-proof, as damage to the upper layer does not cause any impairment Schematic representation (touchscreenmagazine.nl)
  13. 13. Content History Examples of applicationTechnologies Literature & SourcesContent Technology 7: Virtual Touchscreens Functionality Projector projects vertical picture on the work surface. Infrared sensors track the inputs on the work surface Technologies Advantages o Absolutely vandalism-proof, because there is a spatial separation between the work surface and the projector, as well as the infrared sensors o Flexible work surface in terms of size and location Schematic representation (touchscreenmagazine.nl)
  14. 14. Content History Examples of applicationTechnologies Literature & SourcesContent Multitouch Technology Capacitive or optical touchscreens that can capture multiple inputs simultaneously. Advantages Technologies Advantages o Detection of gestures (zoom, rotate, ...) o Multi-user capable (parallel) Multi user scenario (University Duisburg)
  15. 15. Content History Examples of applicationTechnologies Literature & SourcesContent PC replacement Benefits of application o Direct writing via stylus o One-hand operation Examples of application RIM Playbock Examples of application Examples of application o Tablet PCs e.g. Apple IPad, Motorloa Xoom, RIM Playbook,… HP Elitebook Tablet - PC (Hewlett-Packard) RIM Playbock (Blackberry/RIM)
  16. 16. Content History Examples of applicationTechnologies Literature & SourcesContent Input devices Benefits of application o Direct writing and drawing via stylus o Additional functions through multi-touch gestures Examples of application Examples of application o Graph tablets o Touchpads (Notebooks) Touchpad (Synaptics) Wacom Cintq (Wacom)
  17. 17. Content History Examples of applicationTechnologies Literature & SourcesContent Communication Benefits of application o Easy to use (internet, apps, games) o One-hand operation o Customizable user interface (design, operation) Examples of application o Different languages Examples of application o Smartphones e.g. Apple IPhone, Samsung Galaxy S, HTC Desire,… Diverse smartphones (AreaMobile.de)
  18. 18. Content History Examples of applicationTechnologies Literature & SourcesContent Industry/ Economy Benefits of application o Visualization of objects with possibility of interaction o Easy one-hand operation and control of complex systems Logistics handheld (Casio) Examples of application Examples of application o Maintenance o Logistics handhelds o Control industrial plants Application in maintenance (Armor)
  19. 19. Content History Examples of applicationTechnologies Literature & SourcesContent General information Benefits of application o Easy handling o One - hand operation o Display size Operation navigation device (TomTom) Examples of application Examples of application o Navigation devices o Terminals e.g. Microsoft Surface Operation navigation device (TomTom) Microsoft Surface (Microsoft)
  20. 20. Content History Examples of applicationTechnologies Literature & SourcesContent Information Trade/ Marketing Benefits of application o Easy operation through interaction o International by adjusting the language of the control elements Examples of application Examples of application o Cash machines o Ticket vending machines o Kiosk systems/ terminals (trade fairs, museums, department stores, ...) Ticket vending machine (Deutsche Bahn) Kiosk system (Wikipedia)
  21. 21. Content History Examples of applicationTechnologies Literature & SourcesContent Multimedia & Entertainment Benefits of application o Easy handling o One - hand operation o Different languages Car – Multimedia System (Sony) Examples of application Examples of application o Car Multimedia o MP3-/ Videoplayer o Game consoles Nintendo DS (Nintendo)
  22. 22. Content History Examples of applicationTechnologies Literature & SourcesContent Current issues Touchscreen steering wheel Control of vehicle systems such as radio, navigation device and air conditioning via a steering wheel that has a touch screen. Touchscreen steering wheel prototype (n-tv.de, Image: Tina Döring) „Windows 8“ - interface Examples of application „Windows 8“ - interface New interface especially for touchscreen devices. Division into tiles and support of multitouch gestures. Windows 8 interface & tiles (heise.de) Windows 8 handling (heise.de)
  23. 23. Content History Examples of applicationTechnologies Literature & SourcesContent Literature & Sources http://de.wikipedia.org/wiki/Touchscreen http://de.wikipedia.org/wiki/Multi-Touch-Screen http://www.medien.ifi.lmu.de/lehre/ws0607/mmi1/essays/Susanne-Keck.xhtml http://de.wikipedia.org/wiki/Tablet-PC http://www.planar.com http://www.visam.de Literature & Sources http://www.visam.de http://www.heise.de/newsticker/meldung/Die-Touch-Oberflaeche-von-Windows-8- 1254290.html http://www.n-tv.de/auto/Wischen-wechselt-Radiosender-article3572276.html
  24. 24. Thank you very much for your interest! You are interested in this topic and you are looking for contact persons/ implementation partners? Please contact us. © Competence Centre for Virtual Reality and Cooperative Engineering w. V. – Virtual Dimension Center (VDC) Virtual Dimension Center (VDC) Fellbach Auberlenstraße 13 70736 Fellbach www.vdc-fellbach.de

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