Thread: Touch Kobo Touch Firmware 2.0
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Old 09-04-2012, 02:52 AM   #1132
davidfor
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Quote:
Originally Posted by jusmee View Post
Hmm, this has me wondering what sort of touchscreen they use. Mostly you hear about resistive and capacitive. I had not heard of an infrared one on portable devices. Seems a strange choice if it is effected by light.
As volpo said, it uses IR emitters and detectors around the screen. IR beams go across the screen so when you touch the screen, they are broken. It doesn't matter what you touch the screen with, so long as it is big enough to break the beams. Also, it means that pushing hard doesn't help.

Interference from other light sources has been discussed before. From memory, they were about hot lights rather than just bright lights.
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