If rumors are to be believed, Samsung is developing an ultra-high resolution OLED display that has a staggering pixel density of 2,000 ppi. This display may be used in a stand alone VR headset from Samsung, which would make for the most immersive VR experience yet.
https://www.notebookcheck.net/Samsung-may-be-developing-a-2-000-ppi-VR-headset.229892.0.html