Redmi Announces Mass Production of In-Display Fingerprint Technology for LCD Panels

Redmi General Manager Lu Weibing shared a video on Weibo testing in-display fingerprint technology on LCD screens

  • Redmi showcases in-display fingerprint scanner working on the LCD panel
  • The tech has so far been limited to OLED panels since LCD panels didn’t allow light to pass through the display
  • The upcoming Redmi Note 9, Note 9 Pro and Redmi K30 Pro likely candidates to feature new display fingerprint scanners

Xiaomi sub-brand Redmi has announced that it has successfully implemented in-display fingerprint technology on LCD panels. The technology was so far limited only to OLED display panels due to certain technical limitations with LCD screens. The company’s General Manager Lu Weibing officially confirmed today that LCD in-display fingerprint readers were ready for mass production. In an announcement made on Chinese microblogging site Weibo, he shared a video showing the in-display technology working on a Redmi Note 8 Pro prototype device with an LCD panel.

How In-Display Fingerprint Scanners on LCD Screens Work?

The current generation LCD display devices didn’t come with in-display fingerprint technology since LCD panels don’t allow light to pass through the display, preventing such scanners from working. The Redmi R&D team has, however, managed to overcome this limitation of LCD screens with use of “infrared high-transmittance film material” according to Weibing.

Weibing explained that this new high-transmittance film material now greatly “improves the transmittance of infrared light that could not pass through the screen earlier.” The infrared transmitter at the bottom of the screen now emits infrared light. After this, the fingerprint is reflected, it penetrates and shines on the fingerprint sensor to complete the verification process, and thus allowing successful implementation of the technology.

This breakthrough means the arrival of cheaper LCD phones with in-display fingerprint technology, something which helps Chinese companies like Redmi as they target entry level smartphone market.

Redmi K30 Pro Likely to Come With LCD Screen and In-Display Scanner

The timing of the announcement coincides with the launch of Redmi Note series in India. Xiaomi has announced the Redmi Note 9 and Redmi Note 9 Pro will be unveiled on March 12. It is speculated that Redmi might just bring this new technology in its Note series.

Also expected to feature this new technology is the global version of the Redmi K30 Pro. The current K30 Pro model available in China comes with LCD display and a side-mounted fingerprint sensor. It is expected to launch globally at the end of this month and we might possibly see the first LCD display fingerprint scanner featured in this phone.

As usual, these are mere speculations at the moment, and there hasn’t been any official confirmation from Redmi as to when we will actually see LCD phones with in-display fingerprint technology.

Chakri is a go-to guy for your next smartphone recommendation. Back in his engineering days, he used to play with smartphones by installing custom ROMs and that passion got him into the tech industry. He still goes nuts about a smartphone knocking his door for review. Currently managing everything at Telecom Talk, Chakri is trying to master PUBG Mobile in his free time.

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Off Topic : Redmi Note 9 with Helio G70 appears on GeekBench as Xiaomi Merlin. PRICING WILL BE KEY NOW. AS Realme C3 is beast for the price

Girish Gowda | BengaLuru

Get ready for 3 more years of LCD screens on Note series.

Kiran Fernandes | Goa

IPS LCD is the best. AMOLED may be a new tech, but the displays don’t last really long. The colours seem to fade, and well, burn in. I’m waiting for Quantum Dot displays to come to mobiles soon.


Off Topic : #RedmiNote9Pro:
-Aurora Blue, Glacier White & Interstellar Black
-4GB+64GB & 6GB+128GB.
-6.67″ FHD+ 20:9 LCD Gorrila Glass 5 Display
-16MP Punch Hole Front Camera
-48MP Main, 8MP Ultra-Wide, 5MP Macro & Depth Camera
-SD720G, 5020mAH Battery, 18W Charging


I don’t think they will give more than 4500 mAh battery with Snapdragon 720G processor..


let’s see.

Girish Gowda | BengaLuru

It’s like you read my mind. I like IPS LCD displays more as well. AMOLED looks good, but it’s unnatural and burn in is a real problem no matter how much they say it’s not anymore.

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