A review of technologies for sensing contact location on the surface of a display

  title={A review of technologies for sensing contact location on the surface of a display},
  author={Geoff Walker},
  journal={Journal of the Society for Information Display},
  • Geoff Walker
  • Published 1 August 2012
  • Computer Science
  • Journal of the Society for Information Display
Touchscreen interactive devices have become increasingly important in both consumer and commercial applications. This paper provides a broad overview of all touchscreen technologies in use today, organized into 13 categories with 38 variations. The 13 categories are projected capacitive, analog resistive, surface capacitive, surface acoustic wave, infrared, camera‐based optical, liquid crystal display in‐cell, bending wave, force sensing, planar scatter detection, vision‐based, electromagnetic… 
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