A Apple continues to look for a solution to include a fingerprint sensor on the screen of its devices: that is, the Touch ID system working under the screen. The source of the information comes from @L0vetodream, a Twitter user known for leaking various information about products from Apple. Below is the publication:
https://twitter.com/L0vetodream/status/1316988346950823937
In this alphabet soup, MESA is the internal codename for Apple for Touch ID. And UTS stands for under the screen (“under the screen”).
Rumors of an in-screen fingerprint sensor embedded in an iPhone's display first surfaced ahead of the launch of the iPhone X. Although the Apple have opted for Face ID on your iPhones flagships since then, there has been a steady stream of patent filings that indicate the company is still working on Touch ID embedded in the display.
For example, in September, the website Patently Apple The U.S. Patent and Trademark Office has officially published a newly granted patent for Touch ID using an optical sensor that covers a large area of the screen.
Chart shows patent application for patent by Apple for on-screen biometric sensor (source: Pattently Apple)
The biometric sensor under the screen on devices Apple It would be welcome for two reasons: users would have more security, since iPhones would have double biometric authentication, in addition to the facial recognition sensor. And also for convenience, since in times of pandemic, the use of a mask does not allow the use of Face ID.
source: Appleinsider