explainthatstuff
How a touchscreen works#1
Here's my broken Sony (ebook) Reader - an opportunity to venture inside and find out how a touchscreen works! Unlike smartphones, which have capacitive touchscreens that sense electricity in your fingers, Sony Readers use somewhat simpler infrared touchscreens. They lay a criss-cross pattern of infrared beams over the surface that your fingers interrupt - a bit like Tom Cruise in Mission Impossible - signalling to the processor inside which bit of the screen you're pressing.
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.
How a touchscreen works#1
Here's my broken Sony (ebook) Reader - an opportunity to venture inside and find out how a touchscreen works! Unlike smartphones, which have capacitive touchscreens that sense electricity in your fingers, Sony Readers use somewhat simpler infrared touchscreens. They lay a criss-cross pattern of infrared beams over the surface that your fingers interrupt - a bit like Tom Cruise in Mission Impossible - signalling to the processor inside which bit of the screen you're pressing.
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.