Under-display fingerprint scanners, 2018flagship since Android occupied an important part of the market. However, technology has not made much progress, as it is a bit difficult to innovate in this field. Soon Xiaomi filed for a fingerprint scanner patent.
Xiaomiannounced that it has patented the technology of scanning fingerprints from all over the screen. This is good news for the end user. Because you no longer have to try many times to unlock your phone. At this point, you are not prompted to correctly place your finger on the under-display fingerprint scanner.
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Xiaomi maps fingerprint with infrared light data
Xiaomi, below the capacitive touchscreen layer and normal AMOLED some infrared LED It showcased how technology would work in such a way that it had the light of day. First, when the user wants to scan the fingerprint on the screen, he touches the screen with his finger and the capacitive touch screen records the position and shape of the fingertip. Then infrared LED lights emit light from the screen.
Infrared light is reflected back after it comes into contact with the fingertip. Then it reaches the light receptors. Infrared light data is used to map the fingerprint. Then it compares whether the user is the same as the saved one. If it is the same, the phone’s screen is turned on from anywhere on the screen.
Huawei, August 2020filed its own full-screen fingerprint technology patent in six markets in China, Europe, USA, Japan, Korea and India. Still, the technology resulting from supply investments for the company has yet to be clarified. Xiaomi‘s expectations are to bring this technology to the smartphone market soon. However, there is no information about the time yet.
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