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Misunderstanding about the purchase of mobile phone protective film

Abstract: There is a wide variety of protective film products and more eye troubles. The definition of various parameters such as "99% transmittance", "4H hardness" and other parameters can be overwhelming. Many undisclosed consumers have seen numerous concept letters and they have been stunned by profiteers. This site specifically for everyone to attend classes, literacy scans, elaborate on several common misconceptions.

A wide variety of protective film products, spend more eye-catching, "99% light transmittance" "4H hardness" and other parameters of the definition of seeing people confused. Many undisclosed consumers have seen numerous concept letters and they have been stunned by profiteers. This site specifically for everyone to attend classes, literacy scans, elaborate on several common misconceptions.

1,99% transmittance: First of all, many of the protective film products declared "99% transmittance", in fact, is impossible to achieve, and now the highest transmittance is the optical glass, the light transmittance is only about 97% . Screen protection films made of plastic materials are unlikely to reach such a level of 99% transmittance, so the propaganda of "99% transmittance" are exaggerated. Only a few high-quality mobile phone products on the market can achieve 95% light transmission. BG Micro-Loss is one of them. The inferior film transmittance is generally below 80%, which seriously affects the screen display effect and indirectly reduces the brightness of the screen. Long-term use will increase eye fatigue.

2,4H wear resistance: the market often see some mobile phone protective film products marked "4H" "5H" or even higher wear resistance / hardness, in fact, most of them are not true wear resistance. First of all, everyone must understand the "rainbow pattern" of the protective film.

The so-called "rainbow pattern" is because the substrate requires a high temperature at the time of hardening treatment, and in the high-temperature treatment, scattering of the uneven molecular structure occurs on the surface of the substrate. The harder the hardening process, the harder it is to control the rainbow pattern. The presence of rainbow patterns affects the transparency and visual effects. High-quality protective film is difficult to see with the naked eye after the film rainbow pattern.

Therefore, the rainbow grain is actually the product of hardening treatment. The higher the intensity of hardening treatment, the more rainbow grain of the protective film means. Without affecting the visual effect, the best hardening effect will only reach 3.5H. To 3.8H. Exceeding this value is either a false report of wear resistance or a prominent rainbow pattern.

3, electrostatic adsorption: mobile phone screen and protective film is not absolutely smooth, simply rely on electrostatic adsorption, then it is impossible to securely paste to ensure that the protective film does not fall. The theory of electrostatic adsorption is not entirely correct. Strictly speaking, it should be called "silica gel electrostatic adsorption." Of course, the protective film paste has a certain static factor, but the most important is to adhere to the silicone film on the film, but this layer of silicone itself is not strong adhesion, but it can be attached to the screen surface when the film can be completely adsorbed up . This is also the reason why the finger cannot touch the back layer of the protective film during the film application process.


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