Glass
> 3. When you look at the screen, your eyes have to focus on something extremely close to your face, which leaves everything else in your field of vision totally blurred.Not true! Completely wrong! You don't have to focus on the glass device itself. I doubt anyone here even can. It would hurt very soon and you would have an extreme cross-eyed look when trying to see the display.The display is set-up for a focal plane somewhere in front of your eyes. Google mentioned it is equivalent to a 25" at 8 feet distance.