LED’s Are My Friend

October 14th, 2005

Multi-Touch Sensing through LED Matrix Displays

Two scalable techniques for enabling ordinary LED matrices to simultaneously act as multi-touch input devices. In 1977, Forrest M. Mims reminds us in one of his “Engineer’s Notebooks” that LEDs can also be used as photodiodes…

http://mrl.nyu.edu/~jhan/ledtouch/

Thanks to Newstoday

Entry Filed under: Technology