AR coating 

Technology briefing

The application of anti-reflection film has been closely related to our daily life. The glasses we wear and the 3C display products we use all have anti-reflection film layers made in various ways. In principle, the anti-reflection film is to control the thickness of the film layer, so that the reflected light generated after the light enters the film layer forms destructive interference, so as to eliminate the noise of reflected light and enhance the quantity of penetrating light. The anti-reflection effect is related to the material used in the film layer and the number of stacked layers. To achieve a high degree of reflection effect, it is usually necessary to coat the substrate on both sides. If an anti-reflection coating is required for a specific wavelength, it becomes a band pass filter, which is usually used in high-end communication optical components. The anti-reflection film technology of this technology generally refers to the anti-reflection application used in general 3C products to reduce visual interference.

There is also a solvent-based coating process for the production of anti-reflection film, which is fast and low-cost. However, the anti-reflection performance is very limited. Efun's anti-reflection film is a using roll-to-roll (Roll to roll) sputtering process to deposit transparent metal or non-metal oxide film layers on the substrate, which can be pasted on various displays to achieve the function of anti-reflection.