If you ask me, there is no doubt that there are two panels for this device. My first TBolt (which had several problems) had a really bad screen and I complained about it in another thread like this one. I had it exchanged and the new one is VERY much better. The first one was not crisp, colors were bad, looked blown out next to my DInc OLED. The replacement is crisp and the colors are beautiful.
I didn't get a chance to compare side-by-side, but everyone who had seen my first one, even my wife who is pretty oblivious about these things, would say that the new one is dramatically better.