Scanning FTIR: unobtrusive optoelectronic multi-touch sensing through waveguide transmissivity imaging

Authors:
Jon Moeller;Andruid Kerne
Affiliations:
Texas A&M University, College Station, TX, USA;Texas A&M University, College Station, TX, USA
Venue:
Proceedings of the fourth international conference on Tangible, embedded, and embodied interaction
Year:
2010

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Abstract

We describe a new method of multi-touch sensing which can be unobtrusively added to existing displays. By coupling individually controlled optoelectronics to the edge of a planar waveguide, our scanning approach overcomes prior disadvantages of optoelectronic multi-touch sensing. Our approach allows for a completely transparent touch surface and easy integration with existing LCD displays.