How does in display fingerprint scanning work

 How does in display fingerprint scanning work

>its form of biometric recognition

Specific part of the screen has a scanning area under it

When you place your finger over the scanner, it takes a snapshot of your finger’s pattern with a camera or other sensor

It then matches it to the biometric data on your phone

If it’s match your phone will instantly unlock

>problem of in display scanner is the scanning area is relatively small

The scanning process can be instantaneous or very slow. This is likely due to the large differences between the two scanning technologies

Optical VS  Utrasonic

Optical scanners shine a bright light on your finger (it often appears on screen as an animation. Ittake a picture of your illuminated fingerprint with a camera under the screen and make sure it’s registered, if it is the phone unlock

It is faster, depending on software optimization, it found in many midrange device

Utrasonic scanner, are better of the two technologies, they uuse ultrasonic sound waves that bounce off your finger to capture accurate 3d image. This technique is similar to that used in medical ultrasound machine

Ultrasonic scanner are significantly more secure than optical because it’s much tougher to fake a 3d image of a fingerprint. They are moer stable and work in more challenging condition. You will find these mini ultrasounds in high end devices like Samsung galaxy series


Future of seamless tech

In display fingerprint scanner are part of a largerplan by smartphone manufacture to minimize visible instrusions. These include buttons, cameras. Sensor, speakers, ports and unused bezel space

Pop up front facing camera will improve display to body ratio this coincides with the removal of headphone jacks

In future more features might be migrate under the screen

Under display speakers allow you to listen to calls and stereo audio without visible speaker grills

Under display camera allow you to take portrait photo without a notch cutout or mechanical pop up

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