In the touch screen technology, the cover glass is also a very important part, and its processing also directly affects the beauty of the product. There are three processes of cover glass: AF, AR and AG. The following details the treatment process and difference of these three processes.
1. AF --- anti fingerprint, Chinese is anti fingerprint. Generally, SiO2 + AF materials (don, M4, Dow Corning AF materials) are coated by vacuum evaporation.
Principle: according to the lotus leaf principle, AF antifouling and fingerprint proof glass is coated with a layer of nano chemical material on the outer surface of the glass to minimize the surface tension of the glass, reduce the contact area between the dust and the glass surface by 90%, so that it has a strong hydrophobic, oil resistant and fingerprint resistant ability, and keep the screen glass panel bright and clean for a long time.
2. AR - anti reflection, Chinese for antireflection and antireflection, through improving the transmittance of glass (screen), reducing the reflectivity of glass (screen) to achieve the purpose of antireflection. There are many materials to choose. Generally, high and low refractive index materials are used for cross stack plating. Vacuum evaporation plating or magnetron sputtering plating can be used.
Principle: when the light from the light sparse material to the light dense material, there will be a half wave loss of the reflected light. After the AR film is plated on the glass, the path difference of the reflected light on the surface is exactly half of the wavelength different from that on the front surface of the film. The reflected light on the two surfaces before and after the film disappears, which is equivalent to increasing the energy of the transmitted light. And the reflection effect can be reduced by coating both sides of the glass at the same time.
3. AG -- anti-glare, in Chinese, for anti dazzle light, it is to achieve the effect of multi angle diffuse reflection after the glass surface is treated with one side or two sides special treatment, so as to improve the visual angle of the picture, reduce the interference of ambient light and reduce the reflection of the screen. The film can be formed by spraying + baking, and colloidal solution such as SiO2 can be used.
Principle: through the scattering and diffuse reflection of light, reduce the reflection to achieve the purpose of anti dazzle and anti dazzling, so as to create a clear and transparent visual space, so as to have a better visual enjoyment.
WIWO TOUCH is a professional manufacturer, researcher and designer of industrial projection capacitive touch screen, which has passed iatf16949:2016, iso9001:2015, reach, RoHS and ISO14001 certification. The products are widely used in industrial control industry, smart home, medical equipment, walkie talkie, entertainment equipment, office equipment, vehicle navigation, wearable equipment, bank payment system, etc. Our cover glass' AR, AG, AF processing is excellent. We could provide high quality products service and quality, welcome to contact.
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Name:Selina Chan
Tel:0086-596-2607595
Email:sales09@wiwotouch.com