This sounds most interesting!! Microsoft has announced Continuum for phones that is actually like switching your phone to the PC mode. Your Phone appears as the start screen on the desktop and what you do on your phone can be experienced in full-screen Desktop mode on a connected display. All you need to do is to connect your Phone using a HDMI cable to the display.
Universal apps running on Phone use the Windows 10 Desktop UI while connected to a display, as can be seen in the image below.