About mobile phone protective film product knowledge introduction and film precautions

1. High permeability membrane
The light transmittance is extremely strong and easy, the protective film has a smooth surface and feels . However, the touch screen operation is blocked and the hand feel is not good. Fingerprints and oil stains are obvious, so it is recommended to carry a lens cleaning cloth with you.

2. Frosted film
It adopts a three-layer structure, and the surface layer is a frosted layer, which can effectively resist the invasion of fingerprints, and the fingers will slide over without leaving marks; even if there are liquid residues such as sweat, it can be cleaned by just wiping it with your hands, which ensures the visual effect of the screen to the greatest extent. , the transmittance is about 85%. The material is processed by a special process, which can effectively prevent reflection and electromagnetic radiation, effectively filter ultraviolet rays, and reduce the problem of screen reflection in sunlight or waiting.

3. Mirror film
Originally originated in Japan. The protective film acts as a mirror when the main screen backlight is off. Text and images can be displayed normally through the film when the backlight is on. The film is divided into 5~6 layers, and one layer is subjected to aluminum evaporation treatment. Use this layer to reflect external light to achieve the mirror function.

4, privacy film
Using ultra-fine shutter (micro louver) optical technology, the screen data is exclusively for users to read from a frontal 60-degree viewing angle. When the viewing angle is greater than 60 degrees, the content on the screen cannot be seen clearly. When the viewing angle is 30 degrees, the content on the screen is in a fuzzy state. It is suitable for protecting business secrets and personal privacy.

5, explosion-proof membrane
A kind of PC plastic pasted on (or under) the capacitive screen glass. It can effectively buffer the impact, prevent the screen from bursting, affect the appearance, or prevent the glass panel from being broken and scattered due to the accidental impact of the mobile phone, reducing the recessiveness of the glass panel. It can also maintain the unique luster, texture and surface hardness of tempered glass. The structure has five layers: protective film, hardened layer, transparent polyester film, adhesive layer, and release film. Its light transmittance is over 91%, and its surface hardness is over 2H. Its performance has reached the strict requirements of EU and Japan for ROHS.

6. Tempered glass film
The core technology of tempered glass protective film products is in three major blocks, namely AB double-sided tape, tempered glass, and processing technology. Tempered glass is actually a kind of prestressed glass. In order to improve the strength of the glass, chemical or physical methods are usually used to form compressive stress on the surface of the glass. When the glass is subjected to external force, the surface stress is first offset, thereby improving the bearing capacity and improving the resistance of the glass. tensile strength. There are two main advantages of tempered glass. The first is that the strength is several times higher than that of ordinary glass, the bending strength is 3 to 5 times that of ordinary glass, and the impact strength is 5 to 10 times that of ordinary glass. safety. Safety in use is the second main advantage of physical tempered glass. Its increased bearing capacity improves the fragile nature. Even if the tempered glass is damaged, it will be small fragments without acute angles, which greatly reduces the damage to the human body. The quenching and heating resistance of tempered glass is 2.3 times higher than that of ordinary glass. Generally, it can withstand temperatures of more than 150 degrees, and the difference changes. It has a significant effect on preventing thermal cracking. AB double-sided adhesive for tempered glass glass, AB adhesive The finished product cost of the entire tempered glass protective film accounts for about 16%, but it plays a crucial performance characterization, because the entire product relies on AB glue to bond and adsorb the tempered glass and mobile phone screens. Therefore, the quality of AB glue directly affects the quality of the tempered glass protective film for mobile phones.

[Film installation method] ◆Before installation, be sure to take out the screen protector first, compare the LCD screen carefully, and install it according to the following steps after confirming that it is correct according to the direction of the sticker:
1. Clean the surface, use a professional cleaning solution or a non-woven wipe to clean the screen surface, and confirm that there is no visible dust and foreign matter on the LCD surface.
2. The structure is three layers, the label ① layer is the protective layer, the middle is the PET attachment layer, and the label ② layer is the peeling layer.
3. First peel off the protective layer of the label ①, stick it on the side of the screen, and then use a non-woven wipe to flatten the air bubbles, so that the film is completely attached to the screen surface.
4. After the attachment is completed, finally peel off the label ② layer of peeling layer, wipe it clean and enjoy the perfect visual effect.[Precautions for use] :
1. Before sticking the film, make sure that the LCD screen is free of dust.
2. When sticking the film, the fingers should avoid contact with the veneer of the film, so as to avoid leaving dust on the veneer and air bubbles when sticking.
3. It is best to ensure that it is pasted at one time, so as not to leave dust when peeling off and sticking again, and bubbles will appear after sticking.
4. If it is not pasted properly, there are small air bubbles in the film, and the air bubbles can be gently removed with a flat scraper.