Recently, a new OLED screen technology was demonstrated by a foreign study called Fraunhofer, which minimizes the identification of the data on the finger at the pore level.
Prior to the official release of Samsung Galaxy S8, there was speculation that Samsung would use the screen fingerprint identification technology in the Galaxy S8. But eventually Samsung did not really translate rumours into reality. To achieve up to 83% percent of the screen, Samsung was forced to shift the fingerprint recognition button to the rear of the fuselage. Now, the newest invention of the Fraunhofer Institute means that we are a step closer to realizing the real screen fingerprint recognition technology.
Before we saw Apple's acquisition of LuxVue, the Micro-LED screen technology company, and compared with the latter, Fraunhofer technology was the integration of high-precision fingerprint scanners on OLED screens. The researchers began to study the technology in 2012, but the latest results have reached 1600dpi, a three times times higher than ever.
Essentially, this unique new technique uses OLED pixels as a light source, illuminating the finger, and then detecting and analysing through the reflected light. Bernd Richter, the company's department manager, says the optical scanner is very lightweight and uses an exclusive ultra-thin encapsulation technique to build fingerprint sensors into the screen. The distance between the finger and the image sensor is minimized, so the fingerprint data can be captured more accurately. Therefore, this technique eliminates the need for additional imaging optics.
The most impressive is that although very thin, but this high resolution can determine the degree of minimal to the pore level, which means that this OLED screen recognition technology is very safe. To know that optical fingerprint scanning is the most primitive fingerprint identification method, since it has been scanned optical image, so it is not difficult to implement. The new technology of the Fraunhofer Institute formally solves this major shortcoming.
Although Fraunhofer's new technology will take a long time to commercialize, at least it shows us the possibilities and visions of the future smartphone implementation of the screen.