According to new reports, Huawei has sourced AMOLED panels from Samsung for the Mate 20. Of more surprise is the fact that these panels are apparently 6.9-inch ones, which likely means a size hike for the next Huawei flagship, bringing it eerily close to tablet territory.
https://www.notebookcheck.net/The-upcoming-Mate-20-could-sport-a-gigantic-6-9-inch-AMOLED-display.308484.0.html