LG announced that it is developing a new VR headset that is powered by Valve's StreamVR tracking. LG demonstrated a prototype at the Game Developers Conference and revealed the specification of the device.

LG VR headset prototype (March 2017)

LG's VR headset uses dual 3.64" 1440x1280 (529 PPI) 90Hz OLED displays, produced by LG Display (which means that these are probably flexible OLEDs produced on plastic substrates). The headset provides a 110-degrees field of view, and LG is ready to make development kits later this month and will ship them to select partners.

Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters