While major smartphone makers are yet to implement even the simplest form of in-display fingerprint authentication — with Apple outright rejecting the entire concept in favor of Face ID — Asian companies are having a ball with the emerging technology.

While some of the biggest names in the smartphone world are yet to implement even the most rudimentary form of an in-display fingerprint scanning, Chinese companies are trailblazing the trend with ever-evolving technologies. Like regular fingerprint readers, in-display sensors were at first bound to a very ...