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

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. Author Keywords Multi-touch, Frustrated total internal reflection, touch, tactile, interfaces, input devices ACM Classification Keywords H.5.2 Information Interfaces and Presentation: User Interfaces—Input Devices General Terms Design, Experimentation

• Type: Conference
• Year: 2010
• Where: TEI
• Authors: Jon Moeller, Andruid Kerne
• Keywords: Frustrated Total Internal Reflection, Hardware, Multi-touch Sensing, Optoelectronic Multi-touch Sensing, TEI 2010