Just when you thought that the pixel race is going to slow down, now that Smartphones are equipped with Quad HD displays and ~550 ppi pixel density panels, a report claims that Sharp is working on a 4K display panel for Smartphones.

The display panel won't be ready before 2016, but when it does, it will reportedly squeeze in 4096 x 2160 pixels on a 5.5-inch LCD screen. Do you even want to know the pixel density of such a display? Doesn't matter, I'm going to tell you anyways. 842 ppi. Take a moment, let that sink in.

It is rumored that Sharp has 600 ppi panels ready for launch in early 2015.