Vivo claimed the under-display fingerprint solution, which doesn’t require a physical button for the sensor, is “the first to be demonstrated by a smartphone manufacturer”. The technology enables the use of a “true full-screen display and an integrated unibody and mechanical waterproofing design”, said the company.
“In Vivo’s R&D plan, fingerprint scanning will not be carried out by an independent button or region. It will be realised more subtly under the screen, behind the metal shell, or even in the frame.
“Based on ultrasonic technology, the fingerprint recognition technology can be further expanded to realize user interaction, such as gesture recognition, security verification and other fields, which will greatly enhance user experience.”
Vivo told Engadget that while the fingerprint scanning function was limited to a small region on the prototype devices, in theory the same sensing technology could be applied across the entire screen, but that it would significantly increase production cost.
Following the unveiling, Qualcomm issued a press release announcing the development of new fingerprint scanners that work through displays, thick glass, and metal, with underwater operation, heartbeat and blood flow detection.
“We are excited to announce Qualcomm Fingerprint Sensors because they can be designed to support sleeker, cutting-edge form factors, unique mobile authentication experiences, and enhanced security authentication,” said Seshu Madhavapeddy, vice president, product management, Qualcomm Technologies, Inc. “This provides OEMs and operators with the ability to offer truly distinct, differentiated devices with added value on truly groundbreaking new devices.”
Qualcomm claimed the technology was capable of scanning through OLED display stacks “of up to 1200um”, and said that it had been designed as an integrated solution with Qualcomm Snapdragon mobile platforms, and as standalone sensors that can be used with other non-Snapdragon platforms.
The company said the fingerprint sensors for glass and metal will be available to OEMs this month and should arrive in commercial devices in the first half of 2018. The sensors for displays are expected to be available to OEMs for evaluation in the fourth quarter of 2017.
Apple’s upcoming “iPhone 8” is rumored to include a fingerprint-sensing display, but the company has reportedly had to overcome significant challenges to make the technology a reality in its radically redesigned flagship device, due to release in the fall.
Apple is currently in a major legal battle with Qualcomm over its LTE modems, so it seems unlikely the company would consider offering its technology for inclusion in future iPhones. However, the announcement at least demonstrates that the technology is viable, which lends further credence to reports that Apple has perfected its own screen-embedded fingerprint recognition solution. The technology will give Apple’s OLED iPhone a significant advantage over its biggest rival, Samsung, which is expected to stick with a rear fingerprint scanner for this year’s Galaxy Note 8.
Apple is expected to unveil the iPhone 8 and more traditional “iPhone 7s” and “iPhone 7s Plus” models around the usual September timeframe for iPhone updates, although rumors have suggested supplies of the more expensive OLED handset could be tight for up to several months after the official debut.
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