Royole's Moon is a foldable 3D VR headset that use OLED microdisplays. The only technical details on the displays is that they achieve a PPI of over 3,000. The Moon also includes noise-cancelling headphones and runs on the company's own Moon OS. Games and content can be run from the internal memory - or via HDMI and USB interfaces.

Royole Moon photo

The moon is now shipping for $599 (note: affiliate link to Amazon).

OLED type: 

OLED microdisplays





Oops. A typo... fixed!

Oops. A typo... fixed!

and here 'i was thinking that

and here 'i was thinking that is was some new pixel density measurement for hmd's like angular-ppi or something because we really need one, like ppd pixels per degree or something... 

The 2019 OLED Korea ConferenceThe 2019 OLED Korea Conference