To make a 4K smartphone screen, the company would need to pack four times more pixels into the same sized screen they have today. Pixels on a screen are already indistinguishable and the human eye cannot see a single pixel of a 440ppi screen, it is literally impossible.
Since TVs are starting to move into 4K and other media services state they will offer 4K video support, it is only a matter of time before the large screen 4K treacles down to the smaller five/six-inch displays currently available with many Android smartphones.
Samsung also has another additional challenge, making the 4K screen fully flexible and foldable, like the demos at CES showed. Samsung’s Galaxy Round was a little letdown when the screen was not flexible at all, but simply curved with a plastic back.
In 2015, Samsung hopes to be able to make a foldable display that will fit inside your pocket. The South Korean mobile giant believes they can reach 2K (2560 x 1600) by 2014 on smartphones and push the boundaries once again in 2015 to hit 4K.
Samsung is also looking to create ARM processors with 64bit architecture before 2015. Apple and Qualcomm already do this and the only thing Samsung needs to achieve is for the processor to be compatible with ARM’s instruction set.
This is an exciting time for mobile devices on a power front, perhaps not on an innovation front. 4K may be the next best thing in displays, but it is not exactly incredible for the end user, who will see a big drop in battery life and not a huge amount of resolution change, considering they cannot see the big different between 720p and 1080p.