On March 2014, Sony unveiled the Morpheus VR HMD system, specifically designed for the PS4 console. The original prototype system shown by Sony used a 5" Full-HD (1920x1080) LCD panel (Oculus's VR system uses a Full-HD OLED).
It'll take a while for Sony to release this as a product (they say it won't happen before the end of 2014) - but there are now reports that Sony is changing the display to a 2560x1440 OLED display (1280x1440 for each eye). Like Oculus, Sony probably wants a low-persistant display as LCDs simply aren't up to par with OLEDs in that regard.
Posted: Jul 04,2014 by Ron Mertens