The Nokia 8.1 uses NEG Dinorex instead of Gorilla Glass

Most recent Nokia phones use Gorilla Glass by Corning to protect their screens from scratches and cracks (as do most smartphones out there). The latest Nokia 8.1 skips GG in favor of another brand of strengthened glass – Dinorex by NEG.

NEG is a Japanese company (Nippon Electric Glass) and uses a similar process to Corning – depositing potassium ions on the surface of the glass to toughen the glass. It’s already used byseveral phones including models by ZTE (e.g. thenubia Red Magic Mars), Meizu and BQ.

   
Dinorex is designed for mobile devices • How strengthened glass works

While Corning is dominant, there is some competition. For example, Sony has usedDragontrail glass by Asahi in the past. There are a few phones from Samsung, TCL (BlackBerry and Alcatel) that use it too.

Source