3 ms·
It seems that the touch screen uses infrared LEDs. Light reflects off of the finger when it comes near the screen, but I don't see any sort of receptors which w
by andrewguenther 12y ago
It seems that the touch screen uses infrared LEDs. Light reflects off of the finger when it comes near the screen, but I don't see any sort of receptors which would capture that reflection. Can anyone shed some light on this? (Pun only partially intended)
- qbrass 12y agoThe clear bulbs are the lights the black ones are the receptors. When you put your finger to the screen, your finger blocks the light to the receptors.