At the SID Display Week conference for display technologies, Samsung showed off a new type of display specifically designed for virtual reality.
The new 3.5" display is designed to be used in VR headsets like the HTC Vive and Oculus Rift and offers a much higher resolution than current headsets.
Each display has a resolution of 2022 x 2200 pixels which translates to a pixel density of 858 PPI, something simply unheard of in a display larger than 1 inch. Each display will be dedicated to each eye and should do well for VR with a 90 Hz refresh rate.
With these kinds of resolutions, users can expect the screen door effect to be either eliminated or reduced significantly. This has always been one of the biggest complaints about VR headsets other than motion sickness. If these displays can eliminate the screen door effect, then we may have finally reached the right resolution for VR headsets.
There's still no word on when these displays will be available or what devices will use them, but it will very likely be a year at the very least.