That means the TouchID module for biometric recognition will be integrated into an iPhone that doesn't have a home button, through a sensor working behind the glass thanks to
electrostatic lenses.
Meanwhile,
the electrostatic lenses will have an important role when the sensor is picking up the reading of the user's fingerprint, should Apple really push through with the redesign, according to PhoneArena.
An advanced fingerprint sensor is presented in the patent titled «Capacitive fingerprint sensor including
an electrostatic lens.»
The new patent, as reported by Apple Insider, covers a fingerprint sensor that's capable of gathering accurate readings through the touch screen using
an electrostatic lens.