The user who posted it claims that the display components in the picture are from working on parts for the next iPhone, and if that's indeed the case, a few observations spring to mind, that tie up with previous rumors about the screen's features.
First off, the bezel on the sides seems extremely thin, and also the whole module seems a tad wider, but before it's placed next to an iPhone 4, there's no way to know for sure. Still, those rumors about a larger than the current 3.5" display on the next iPhone might hold water, after all.
The most interesting thing, however, other than the fact Wintek workers are still making iPhone screens despite their bosses poisoning them with N-Hexane last year to speed up the production process, is the home key.
home button seems elongated, which coincides with a lot of rumors and leaked case schematics that the next iPhone will sport a home key with different shape, and it is talked to be touch-sensitive, for some gesture navigation fun.
Make of it what you will, and we should know more soon enough.
via Tinhte (translated)