The current-gen VR headsets are plagued with the screen door effect (SDE), with it being one of the last technological barriers for VR headsets before they really leap forward in quality, with Samsung teasing what could end up as the future of LCDs for VR headsets.
Samsung recently showed off a prototype 1.96-inch LCD with a native 4K resolution, and with the super-small 1.96-inch size it has an astounding 2250 pixels per inch, compared to 500 PPI average on a high-end smartphone display. We've been hearing about 4K per eye VR headsets for a while now, so this could be what Samsung has been working on in order to provide them to the likes of Oculus, HTC, Sony or even itself - with a next-gen standalone Samung Gear VR headset.