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 small active area, but this is quickly changing. What Synaptics used to call the “phase 3” of in-display fingerprint authentication (in other words, working anywhere within the screen) is close to becoming the norm.
