Interesting out of Qualcomm. The size is noted, need to see it downsized.
Qualcomm builds a bigger, better in-screen fingerprint reader
Never miss your fingerprint scanner again with this giant new sensor. By Ron Amadeo
In-screen fingerprint readers were the standard form of Android biometrics on 2019 flagships, and in 2020 we'll start seeing the second-generation versions of this technology. Qualcomm is hosting its big tech show this week, and one of the first announcements is the new version of its "3D Sonic Max" ultrasonic in-screen fingerprint sensor. The second-gen sensor is absolutely huge. Qualcomm says it's 17 times larger than the previous version.
In-screen fingerprint readers offer the benefit of being invisible and under the screen, and they can go on the front of the device while still allowing for an all-screen smartphone design. Being on the front lets you activate the fingerprint reader while the phone is on a desk, without picking it up. The downside is that there's not tactile guidance for where your finger should go. There's just a big, smooth pain of glass, and if you miss the fingerprint sensor, you're going to fail to unlock your phone. For in-screen fingerprint readers, bigger is better, since a wider target area means less of a chance you miss the invisible reader..... "
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