Redmi has now successfully implemented Fingerprint on the LCD screen !
The working principle of the screen fingerprint is simply to record the characteristics of the fingerprint and feed it back to the sensor below the screen to determine whether it coincides with the user's initial fingerprint.
However, because the fingerprint sensor is below the screen, there needs to be a channel to transmit optical or ultrasonic signals, which results in the current implementation only on OLED screens. LCD screens can’t enjoy this visible unlocking method because of the backlight module.
At present, all LCD screen mobile phones can only use back fingerprints or side fingerprints like Redmi K30.
The Redmi R & D team has now overcome this problem, realizing screen fingerprints on LCD screens and having mass productivity.
The innovative use of infrared high-transmittance film material greatly improves the transmittance of infrared light that could not pass through the screen. The infrared transmitter at the bottom of the screen emits infrared light. After the fingerprint is reflected, it penetrates the screen and shines on the fingerprint sensor to complete the fingerprint verification, which solves the LCD Fingerprint problem.
Redmi Note 9 series is all set to go official in India on March 12. However, Xiaomi's lineup could be a little different this year. Recent teasers from Xiaomi India suggest that there could also be a Redmi Note 9 Pro Max model which might break cover at the same event. The purported Redmi Note 9 Pro Max would be a top-of-the-line offering with the most powerful hardware of the series. Redmi Note 9 Pro Max could pack quad rear cameras and the MediaTek Dimensity 800 SoC.
Redmi Note 9 series is all set to go official in India on March 12. However, Xiaomi's lineup could be a little different this year. Recent teasers from Xiaomi India suggest that there could also be a Redmi Note 9 Pro Max model which might break cover at the same event. The purported Redmi Note 9 Pro Max would be a top-of-the-line offering with the most powerful hardware of the series. Redmi Note 9 Pro Max could pack quad rear cameras and the MediaTek Dimensity 800 SoC.