With concepts like this, you gotta "imagine" that everything; chips, battery, cpu, etc are all at least housed in the top and bottom bezels. Although it seems like that isn't possible, you gotta remember that this is just a concept aka an idea that most likely won't see the light of day.
While it is very impractical and very prone to just shatter to a million pieces unless it's got like gorilla glass 10 or something lol, it looks like an awesome concept.
It is quite possible that this could be made but it would be hard to sell. It's a heavy piece of shiny, fragile glass.
But on the other hand, the renders look awesome!