In no future distance time, we will start seeing LCD in-display fingerprint scanner in budgeted and affordable Smartphones, from mid-range phones maker companies.
Redmi General Manager, Lu Weibing announced that the company has successfully implemented LCD Fingerprint scanning on an LCD screen. Sincerely, this is a huge turn-on for low-priced mobile phones with an LCD screen display.
In the Smartphone industry, it is worth noting that phones that uses LCD (Liquid Crystal Display) a flat panel display which uses liquid crystals always turn-over to either rear or side-mounted fingerprint sensor scanner.
But with the new announcement from Lu Weibing on Weibo, we will start seeing an in-display fingerprint sensor on LCD screen panel. It is well-known that only OLED screen can use this feature before now.
Major thanks go to the Redmi R&D team, and the good thing is that the company said this new tech is now available on mass production. The gif shows a short video clip of a prototype Redmi Note 8 Pro.
Biometric authentication companies like Goodix have previously confirmed plans to bring the technology to LCD screens in 2020. Thankfully. Redmi’s R&D (Research and Development) has done the tech quickly.
It works good, there is an IR blaster behind the screen that emits infrared light. The high-transmittance film material that the company has used allows the infrared light to pass through the screen. This light is then reflected back at the fingerprint sensor that then gives the phone a fingerprint.
Xiaomi and Redmi executive explains “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.”
Well, OLED screen in-display fingerprint sensors are able to “peek” through the pixels in order to read a user’s fingerprint, with pixels also able to light up the finger.
But the presence of a backlight component on LCD screens complicates matters. Fortunately, Lu says turning to infrared light instead is the perfect solution.