When I first saw the Panasonic P100 pictures, I thought that it is a full display smartphone. However, the design is misleading. In fact, when you take a closer look, you can see that it actually has quite big bezels. The black area around the screen isn't that display. Because the use of a black border around the display, it looks like the screen covers a larger area and the bezels are small (I am looking at the beige color version. I still think that the design is not bad, quite original with the user of two contrasting colors but this is not an edge-to-edge display.
Even the side bezels are quite large. Keep in mind that this is an entry level phone. I think that Panasonic faked it so it look likes it has full screen. I've read many comments of users saying the same thing. It's like a visual trick, and probably quite a good one.