Cheap, Small LED or LCD Touch Sensitive Screens?

Posted by ryuzaki0 on Monday April 10, 2006 @11:30AM from the off-the-shelf-or-DIY-project dept.

emf2268 asks: "I'm looking to either purchase or build (I'll do the circuitry myself if I have to) several dozen, small screens for an arcade game that uses a touch interface. Each screen, which should be around 6-10 inches, needn't be extremely advanced in the display department, since 16 colors will do just fine. An LED or LCD would do the job. But each screen also needs to be touch sensitive...it only needs to know if it's been touched, not where it was touched. How, can I build this as cheaply as possible?"

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You can use an LED matrix as both display & se by saccade.com · 2006-04-10 12:24 · Score: 5, Interesting

It turns out you can use LED arrays as both displays and sensors. People have successfully used them for touch sensor controllers. See this blog for some experiments. The original concept came out of the NYU media lab.