An increasing number of smartphones can boast of built-in fingerprint reader option. These readers as everyone knows, are built on the front of smartphones in the Home button on the rear panel or on the side of the power button. LG has decided, however, deviate from this rule and enter the above-mentioned function in a separate area below the screen of the device. With this solution, the user has to obtain greater comfort presented the item. Unfortunately, there is as yet no information on the technical aspect of such a solution, the only known is that such an effect could be achieved by reducing the thickness of the reader to 0.3 mm.