Written By: Priyanka Rajpal | Updated: Jun 28, 2017, 3:29 PM
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While Apple and Samsung were in race to lead the fingerprint sensor technology, slow and steady has rather won the race. The Chinese company's solution, called Vivo Under Display, is a fingerprint sensor that can be placed under glass, an OLED screen, or even Aluminum, making it completely invisible and unobtrusive.
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Vivo's sensor is an ultrasonic one, but Qualcomm already has an ultrasonic fingerprint sensor that's built into some phones, like the Xiaomi Mi 5s. It works by emitting ultrasonic sound waves which penetrate the skin of your finger and capture a precise, 3D image of your fingerprint.
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Vivo Under Display can penetrate 1.3mm of OLED, 525μm of aluminum or 800μm of glass. For comparison, Qualcomm's previous technology could only penetrate 400μm of glass, and capacitive scanners only go up to 300μm.
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Vivo's new fingerprint sensor is not affected by ambient light and it will work with wet fingers and sweat marks. The company is also working on a variant that also works underwater.
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The fingerprint scanner is placed just under the display screen. While it was a huge challenge for phone manufacturers due to the demand of big screens to place the fingerprint scanner. Vivo has managed to place fingerprint scanner under the home button inspite of battling with the space and not placing it at the back like other phone manufacturers.
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