In-Display Fingerprint Sensor

Biometric authentication has replaced the mobile password techniques with a fingerprint sensor as well as face unlock. These methods are used to identify the user and secure the mobile data to make simple and secure transactions. The first in-display fingerprint sensor-based mobile device is launched in 2004 namely Pantech GI100. The next devices came from Toshiba like G500 and G900 in 2007. Afterward, mobile manufacturers such as Acer, Motorola, and HTC connected with their own devices. In the year 2013, the apple phone like 5s was launched with a fingerprint sensor. The working of the fingerprint sensor can be done by tracking the lines and ridges of your finger. But, various scanning technologies can be at work in the process of tracking like optical, ultrasonic otherwise capacitive scanning.

What is an In-Display Fingerprint Sensor?

Smartphones including fingerprint sensor have turn into more protected and faster nowadays. So, these sensors are mainly used for providing security to smartphones. The in-display fingerprint sensor featuring phones are like Vivo X21, Huawei Mate 20 Pro, OnePlus 6T, Oppo R17 Pro, Vivo Nex, Huawei P30 Pro, OnePlus 7 Pro, Huawei Mate 20 Pro, Samsung Galaxy S10 series, Xiaomi Mi 9, Xiaomi Mi 9T, Realme X, and Oppo Reno 10X Zoom Edition and Vivo V11 Pro. The main features of the in-display fingerprint sensor include flexibility & anti-spoofing.

How Does it Work?

The process of fingerprint authentication can be done very easily by placing the finger on the sensor to sign-in for the first time. For the next time to unlock the phone, the sensor confirms and matches the previously stored scanned image with the fingerprint so that it gives access to your phone by unlocking.


In most of the fingerprints, there are 3 basic patterns like loop, arch & whorl. An arch is similar to a wave pattern. The edge begins from one finish, increases a little bit within the middle to form an arc & stops on the other end. The basic loop pattern makes a loop wherever the edge begins and stops at the same position.

These models include deep curves as well as in some cases; the edges cross with each other. The whorl pattern will form a curved shape & maintains by re-entering into edge lines.


The advantages of the in-display fingerprint sensor include the following.

  • Usually, in-display fingerprint sensors are located at the underneath of the mobile screen, and it is simply convenient and accessible.
  • These sensors work for both wet and dry fingers, and the optical sensor is thin, they don’t donate a lot to the width of the phone.
  • More significantly, they are quick. In reality, Synaptics’s Clear ID maintains to equivalent the fingerprints within 0.7 sec flat.
  • If we evaluate it with face lock, then it takes a 1.4 Sec’s average time to examine a face.

In-Display Fingerprint Sensor Applications

The applications of the in-display fingerprint sensor include the following.

These sensors are used in different upcoming android smartphones like Vivo X21, Mate 20 Pro, Huawei OnePlus 6T, Vivo Nex, Oppo R17 Pro, Huawei P30 Pro, Xiaomi Mi 9, Huawei Mate 20 Pro, OnePlus 7 Pro, Xiaomi Mi 9T, Samsung Galaxy S10 series, Realme X, Vivo V11 Pro, and Oppo Reno 10X Zoom Edition.

Thus, this is all about the in-display fingerprint sensor. From the above information, finally, we can conclude that these sensors are used in smartphones for security purposes. Here is a question for you, what are the disadvantages of an in-display fingerprint sensor?