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Neonode Outs Multi-Sensing Touch Technology

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"using light"?

Captain Ahash

Feb 21, 2012, 12:28 PM
I find it strange that if it is as simple as they make it sound, I would imagine we would already see this in play. My concern would be if this would be effected by outside lighting conditions.

Feb 21, 2012, 12:34 PM
I imagine this is something like a holographic touch screen thing where it pops off the phone. If so... D:

Feb 21, 2012, 2:15 PM
soudns really weird, we'll see how it goes. Eh?

Feb 21, 2012, 6:57 PM
LED's can be used to detect light, including the detection of their own light reflected back into the LED. It would take a specialized display driver IC to read the reverse current flow, and you could probably scan an OLED display matrix it like you would the rows/columns of a camera. Its a well known property of LED's and hobbyists have used it for years. There is a neat demo out there where someone touches various LEDs to turn them on and off.

I would imagine they are doing something similar.

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