Few days back in last week we spotted that the upcoming Samsung Galaxy Note 4 would features a three sided YOUM display and a recently filed Samsung patent shows the possibility of this kind of design. According to the patent application the Galaxy Note 4 could come with round edges on the sides giving the credence to existence of YOUM display.
The above image from the patent application shows how Samsung looks ahead for the UI of the upcoming device utilizing those curved edges wherein the app shortcuts appear here. Earlier Samsung executive has said that the Korean giant is working on a new form-factor for the upcoming Galaxy Note. Here is a video from Samsung showing the basic concept of YOUM display.