The in-display fingerprint scanner technology was introduced in the early 2018 and now it has become quite a standard fingerprint biometric security feature. Unfortunately, this technology is only able to apply on OLED display that allows better light transmission where the LCD panel technology having difficulty in light transmission.
Yesterday, the Redmi General Manager, Lu Weibing has announced a remarkable breakthrough that the company’s R&D manages to include an in-display fingerprint scanner right under an LCD display.
According to Lu Weibing, this technology was possible by using infrared through high transmission film materials. This allows light to pass through the screen and let the fingerprint sensor to register.
This would allow more budget smartphones to feature this technology.