Computer radiation protection film has a certain effect, but it does not have the exaggerated effect that the merchants say. Computer anti-radiation films generally apply anti-radiation coatings containing nano-metal elements on the surface, which can play a certain role in filtering and reflection.
Nowadays, better anti-radiation films can block more than 90% of harmful ultraviolet rays from intrusion. By absorbing and effectively blocking computer ultraviolet and infrared radiation, they can effectively block more than 99% of radiation sources, protecting computer users from Damage caused by large amounts of radiation. At the same time, it can prevent the screen from being damaged when the computer is hit by heavy objects.
Extended information
The radiation from computers, TVs, etc. mostly comes from electromagnetic waves from LCD screens. These waves have certain wavelengths and amplitudes. The level of radiation protection is based on the fluctuation of light. Based on the interference phenomenon, the electromagnetic waves of different wavelengths generated on the front and rear surfaces of the film interfere with each other, offset part of the radiation, and achieve the effect of preventing and reducing radiation.
The degree of radiation damage is directly proportional to time, which means that the longer you are exposed to electromagnetic radiation, the greater the damage you will suffer. It is inversely proportional to the distance. If the distance is increased ten times, the radiation received is one percent of the original. If the distance is increased one hundred times, the radiation received is one ten thousandth.
Baidu Encyclopedia - Radiation Protection Sticker