It is official: Samsung Display has begun to mass produce the foldable OLED panels for the high-end Galaxy Fold device. Samsung's Galaxy Fold is set to hit the market globally on April 26, but the 5G version is expected to hit South Korea in May — and the rest of the world at a later time, of course.
https://www.notebookcheck.net/Samsung-begins-mass-production-of-the-foldable-OLED-panels-for-the-Galaxy-Fold.416116.0.html