In-Display Ultrasonic Fingerprint Sensors for Smartphones Provide Improved Authentication and User Experience

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4Q 2018 | IN-5342


In-Display Fingerprint Sensors Offer an Upgraded Authentication Solution


In-display fingerprint sensors technologies are starting to find their way into smartphones and are currently using optical scanners with a more advanced ultrasonic technology expected to be released next year. Ultrasonic fingerprint scanners can allow an entire device’s screen display, or a large portion of it (even a dirty one), to work as a fingerprint reader. This allows a user to unlock a phone, open a secure app, or authenticate a payment just by placing their finger on the display.

Ultrasonic sensors make use of ultrasonic sound to create a 3D image of a fingerprint. The sensors determine a fingerprint’s unique ridges along with other details. In contrast, standard capacitive and optical fingerprint scanners create easy-to-replicate two-dimensional (2D) images of a user’s fingerprint that provides a less secure authentication technique. Optical fingerprint scanners also require the user to press their finger in a specific, predefined portion of the screen while ultrasonic sensors allow for a larger p…

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