Mobile phone protection film, the price from a dozen to a hundred dollars have. There is no corresponding standard in the mobile phone film industry, which is basically in an irregular situation. Many of the mobile phone film industry are worth noting.
One. Exaggerated light transmittance, film transmittance is unlikely to reach 100%
Many street vendors are branded with "transmission rate of 99%" or even 100% of the billboards, but in fact, no matter how good the film transmittance can not fully reach 100%. At present, the optical transmittance is the highest optical glass, its light transmittance is only about 97%, while the PET material film, light transmittance can generally reach 90%, some high-definition film transmittance can reach 95%. The high-end film will also affect the brightness and color transmission of the mobile phone to some extent. The film that does not affect the display effect of the mobile phone has not yet appeared.
Two: Exaggerate the function of radiation protection, and there is no scientific basis for using the film to prevent radiation from mobile phones.
In fact, the mobile phone radiation source is an antenna, and the film protection is a mobile phone screen, which is basically two things. To put it bluntly is to create steamed bread and attract consumer attention.
There is no scientific basis for the use of a film to prevent cell phone radiation, and it has not yet been heard. In addition, the mobile phone is indeed a trace of radiation, but there is still no authoritative conclusion that people suffer from certain diseases due to cell phone radiation.
Three: after the film can be washed and can continue to paste, silica gel electrostatic adsorption membrane can be washed, but after washing can not reach the original adhesion
There are many films in the promotion of the film claiming that the film can be washed, but only electrostatic and silicone adsorption film can be washed, if you can theoretically still can be reused after cleaning. However, due to the fact that during the cleaning process, the protective film is inevitably dusted or stained with fingerprints, the silicone adhesiveness of the protective film adhering surface is reduced, or a lot of bubbles are generated in the process of sticking. Less difficult. And after cleaning more, the adhesion of the film will still be reduced, and it can be attached after washing, which is basically not practical.
Four: Foil can eliminate fingerprints, foil can eliminate fingerprints? Ordinary film cannot completely eliminate fingerprints
For ordinary films, the current technology is 100% anti-fingerprint is impossible, can only be said to reduce the presence of fingerprints to a certain extent, the application of tempered glass protective film or some strong anti-fingerprint film can maximize anti-fingerprint effect.