Samsung has been working on fingerprint readers under the screen for some time, waiting for a mature technology that can be implemented safely and prudently in its highest priced devices. 2019 would be close to being the first year in which we see a Samsung Galaxy with this technology, with quite interesting new patents that are coming to light.
Terminals such as Vivo Nex have a reader under the screen, consisting of a subpanel attached to the main AMOLED screen, so it is necessary to place your finger in the specific area of the reader to unlock the device. Samsung has patented a mechanism so that virtually the entire screen can work as a fingerprint reader, with a segmentation of the same never seen before.
Samsung patents a fingerprint reader under the segmented screen
The concept posed by Samsung, is to incorporate a large sensor under the screen, divided into several parts. In this way, the reader would occupy almost all the useful surface, but it would only be activated by clicking on any of the available areas, so that energy consumption would not be compromised. This also allows developers to locate the log in button in virtually any part of the screen, as we can see in the image below.
To avoid ghost touches and other errors, the patent includes a recognition system for the position of our hand. In this way, if we have the terminal held with one hand, the reader would use the one hand mode to adjust the position of the reader to that of our hand. A rather elaborate way of interpreting how a fingerprint reader should work, which had not been seen before.
The rumors suggest that the Samsung Galaxy S10 has high chances of being the first Samsung with an integrated under-screen reader, so we just have to wait to see if this ends or not coming true.