Samsung says devices with 4K displays are on the way

Samsung mentioned that they're preparing a smartphone with a QHD AMOLED screen (2560 x 1440 resolution). Some believe that this will be the display on the Samsung Galaxy S5, but it's all speculation at this point. 

Samsung apparently also confirmed that it plans on launching smartphones with UHD (4K) displays with a resolution of 3480 x 2160 in the future, which would result in a pixel density of more than 700 ppi, making it suitable for phablets.

No time frame was offered, but it's likely we won't see these UHD displays make it to phones any time soon. Samsung basically said that UHD displays will come to smartphones somewhere down the line, so it probably won't be before 2015 that UHD phone displays become the next big thing.

In non-cell phone related news, Samsung also announced that they will be releasing AMOLED television sets with UHD SHD resolutions (7680 x 4320).