Quote:
Originally Posted by newday07
really? I believed that the beams were always on and then the finger pressure interrupted them. How do they really work? 
This applies to all infrared screens including tolino, right? |
Sheesh... didn't you read my earlier reply to you? Where I mentioned scanning the screen? Reducing power? To quote myself:
Quote:
Originally Posted by DNSB
For the only IR touch screen I dismantled, the number of LEDs did not matter since only two were on at any one time. It used a matrix array in which the LEDs were not on continuously which increases the LED lifespan while reducing the power consumption (the latter being very important to an ereader). The pattern seemed to be turning on a vertical LED and then scanning by sequentially pulsing the horizontal LEDs. Move to the next vertical LED and loop until an event is seen.
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