This is an official confirmation from Samsung that ultra high definition (UDH) display based on Super AMOLED panel is under working, and will be ready for use this year.
Following to the PhoneArena.com report, the next generation of Samsung Galaxy Note: 5th generation, will feature a 5.89-inch UHD display with 748ppi pixel density. And of course, like the Galaxy S line, the company will also release the Galaxy Note 5 edge, with dual edged display, but the display is smaller: at 5.78-inch, and has a 762ppi display panel.
Samsung Galaxy Note 5 UHD display
As expected, Samsung will announce both Galaxy Note 5 and Galaxy Note 5 edge at this year IFA.