Quote:
Originally Posted by GeoffR
Capaticitive touch uses a layer on the screen that detects touch by an electrical conductor (such as moist skin), IR uses beams projected from the side of the screen that detect being blocked by an opaque object.
The advantages I see for IR are:
1. No extra layer on the screen, so contrast is better and there are less problems with colour distortion caused by refraction as light passes through the layers.
2. I can touch with a less conductive object such as fingernail, or the drier skin on my knuckle, instead of the moist skin of my fingertip which avoids marks on the screen.
3. Touch still works when wearing ordinary gloves, and for people with dry skin, etc., no need for special gloves or thimble.
I think the Glo HD has IR touch same as the H2O, but not 100% sure until someone tests one.
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Another advantage is that a clear demarcation between edge and screen avoids all the accidental, annoying screen touching when fingers slip, which I had all the time with the aura 6".