Samsung Display has announced that it has started mass producing new OLED displays intended for laptops. ASUS will have first dibs on the 90 Hz and 4K panels, which have made their way into current Zenbook and Vivobook Pro machines.
https://www.notebookcheck.net/Samsung-Display-starts-mass-producing-90-Hz-and-4K-OLED-displays-for-laptops.562346.0.html