How Does Under-Display Fingerprint Sensor Work?
How to work under-display fingerprint? In the last few years, we have seen many new smartphones, the most popular and successful in-display fingerprint, seen in many phones nowadays.
Today I will tell you all the things related to this through this archetype, In-display or in-display fingerprint technology, and how it works. And what are its advantages and disadvantages?
What is In-Display Fingerprint:-
So, friends, there was a time when we used the keypad to lock and unlock the phone, but as the technology grew, the Smartphone replaced the keypad phones.
Password, PIN, and pattern were optioned for security in smartphones. Still, it was not so secure as it was predictable that fingerprint scanners started coming in Smartphones to further safe privacy.
Initially, the fingerprint scanner was placed in the back panel of the phone, then slowly replaced by the home button on the front, but now the fingerprint scanner has taken place under the display. Named under-display fingerprint.
Under display fingerprint technology was first used by Vivo in its Smartphone Vivo X21, designed by the Synaptics company, which works with OLED and AMOLED displays.
How many types of In-display fingerprint are:-
- Optical Sensor
- Ultrasonic Sensor
- Capacitive Sensor
- Thermal Sensor
But today we will talk about optical Sensor only.
How Optical Sensor works: –
In this technology, the fingerprint sensor is placed under the display, from which a blue light comes out which produces the road map of our finger and stores it as an image, after that as soon as we are on display Keep your finger on.
In the same way, Blue Light makes an image of our fingerprint and compares it to the idea already stored and if the image matches, your phone is unlocked easily.
This technology works on 2D graphics.
Why Sensor is not visible:-
Still, a question will be in your mind that when this Sensor is installed under the display, why do we not see it?
OLED or AMOLED display is used in those smartphones which have an In-display fingerprint. This type of production does not have a backlight.
The Sensor can be easily placed; the display has tiny holes for the Sensor that are not visible from outside.
Now you must know what In-Display Fingerprint is and how it works. Next, I will tell you about the Advantages and Disadvantages of this technology. First, we should know about its benefits.
Advantages of under-display fingerprint: –
1. In-display fingerprint phones have a larger display than ordinary phones.
2. Display of these phones is good because of the production of OLED and AMOLED display.
3. Screen to body ratio is high in these phones.
4. With Artificial Intelligence (AI) support, it is faster and accurate than the standard Sensor.
Disadvantages of under-display fingerprint:-
1. The most significant disadvantage of the under-display fingerprint is that if the display is damaged in any way, replacing it becomes slightly expensive compared to the standard collection.
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