Vivo recently officially launched the X20Plus screen fingerprint version, which is the world's first smart phone to support the screen to identify fingerprints. vivo X20Plus screen fingerprint version Used is Photoelectric reflection technology, the principle is that when the finger touches the screen, the light emitted by the OLED screen penetrates the cover plate to illuminate the fingerprint texture, the fingerprint reflection light reaches the screen to reach sensor , Eventually forming a fingerprint image to identify.
Press on the fingerprint recognition icon for an instant, Vivo X20Plus screen fingerprint version there will be a recognition animation, this identification area will produce an instant highlight, the role of natural access to fingerprint information from the actual experience point of view, not only has the screen fingerprinting practical, but also quite technology sense.
However, the new technology experience, it seems to bring the traditional film market challenges.No matter HD film or tempered glass film, as long as non-original film, affixed to go vivo X20Plus screen fingerprint version will not be able to correctly identify the fingerprint. To this end vivo X20Plus screen fingerprint version Users, with a year free replacement of the original film service. It appears that ancestral film in full screen era, really want to 'cool ' It's
▲ a song 'cool ' Giving foil little brother
After affixing a HD film (plastic), Shu Ye's hands vivo X20Plus screen fingerprint version Really can not be fingerprinted.However, the water Ye did not give up, put on a glass film found or not.What is the problem in the end? Third-party film is transparent, the impact is the light transmittance .Read this, water Lord seems to figure it out.
In the third party without tearing the film at the same time, Shu Ye to fingerprinting has been deleted from the first deleted, and then re-enter the film or not, it should have a change in the refractive index of light, so the film after the sensor 'see 'The fingerprint has changed so can not identify.
We can see that, even if casually affixed to a film, re-enter the fingerprint and no significant impact, the intensity of the press a little larger on it.
Fingerprint fingerprint can be unlocked after normal fingerprinting, the speed is not much change. Similarly, if this film no, replace the film or without the film, just re-enter the fingerprint can be.
Replace with a glass film can, of course, even if you buy a third party film, but also try to consider high-quality, thin thickness of the product.
to sum up
Through our simple test, vivo X20Plus screen fingerprint version is the use of third-party foil, the premise is that you have to re-enter a fingerprinting after the film information.Of course, we can also choose the original film service, after all, the line stores around the body, the film worn to go for a change.If Is intended to use third-party film, then recommend the choice of high transmittance, ultra-thin thickness of the brand steel film.