explainthatstuff
How a touchscreen works#5
Here's a closeup of the light emitters and detectors. I'm not quite sure how these work yet - whether the detector and the emitter is built into the same unit (as I suppose it is). I think the clear, curved part at the bottom edge is probably a lens - taking light either in or out.
This photo is from our article on how touchscreens work.
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How a touchscreen works#5
Here's a closeup of the light emitters and detectors. I'm not quite sure how these work yet - whether the detector and the emitter is built into the same unit (as I suppose it is). I think the clear, curved part at the bottom edge is probably a lens - taking light either in or out.
This photo is from our article on how touchscreens work.
Our images are published under a Creative Commons Licence (see opposite) and are free for noncommercial use. We also license our images for commercial use. Please contact us directly via our website for more details.