While Samsung said in January that it's hard at work on a 2,560 x 1,440 AMOLED panel, it won't be the first to show one off. That honor goes to AU Optronics, a Taiwanese display company that makes screens for numerous device manufacturers, Samsung included. At 5.7-inches, it squeezes in 513 pixels-per-inch, the most of any such display yet shown. By contrast, there are already quite a number of QHD LCD screens on the market, like a theVivo Xplay 3's 6-incher and a 543ppi model from LG. The company said it also has a 6-inch QHD AMOLED coming, and Samsung will no doubt announce something similar soon, as well -- possibly for the next Galaxy Note model. Either way, prepare for smartphones with more pixels than you could ever possibly see.