what is glass-to-glass touchscreen technology exactly?
I've been reading that all over the place, and yet there isn't much information about it. All I can find is that it's opposed to Film to Glass technology. Well, all the previous iPhones have had glass-to-glass technology, so what's new? Why is it being talked about? The top surface of the screen/display is Glass (Gorilla Glass), and of course the lcd display is glass too (they all are very thin glass substrates). The last two iPhone models used optical bonding of the two glass layers, to increase viewing angles and reduce multiple reflections, no extra surfaces with air gaps.
(Any time the angle of refraction is changed, some light will reflect, such as glass, to air, to glass, etc., light will reflect at each surface/boundary. Quantum Mechanics does a wonderful job of explaining this, and it gets really interesting that the reflection doesn't actually occur all at the surface, but only appears to! Quantum Mechanics describes things very different than common sense reality but it almost always works. Just if we can describe gravity in there...)
Also, it appears that in some places, the glass to glass is used in resistive displays that usually use film to glass. This would be very different than the capacitive touch screens used in all iPhones to date. Would this mean that gloves could be used then, and its pressure sensitive. This would seem like a step backward in durability, since the top layer of glass would have to be very thin (0.2mm thick) for it to be flexible. Also, it requires pressure, and it's lower cost, older technology, and usually isn't multi-touch, that of course isn't an option. Multi-touch is standard!
Or is it news because of TPK Holding and Wintek will win on the new contract?
Can anyone shed light on this?