What is anti-blue light tempered film? Is it harmful to the body?

We are more familiar with blue light. Usually, large LED screens emit blue light, and mobile phones also emit blue light when watching videos. It represents clarity. However, blue light is harmful to a certain extent, and the anti-blue light tempered film is a product launched to protect the eyes. It can relieve eye fatigue and prevent blue light from damaging human health. Generally, you should be particularly careful when choosing an anti-blue light tempered film to prevent inferior products, which not only fail to play a protective role, but instead increase the burden. Protecting your eyes should start now.

The principle of anti-blue light tempered film:

Anti-blue light tempered film mainly blocks the high-energy short-wave blue light emitted by LCD/LED screens. Its principle is to absorb and refract excessive short-wave blue light in the screen, greatly reducing the stimulation of blue light to the eyes, effectively relieving dry eyes, red eyes, eye pain, and eye fatigue, thereby better protecting eyesight.

The method of identifying the authenticity of anti-blue light tempered film is as follows:

1. Before applying, pick up the anti-blue light tempered film and observe it from different angles. Some angles will reflect blue-purple light.

2. Place the anti-blue light tempered film on white A4 paper. You can see a slightly yellowish-green color through the tempered film.

3. After putting the anti-blue light tempered film on the phone, the screen clearly reflects blue-purple light when it is in black state.

4. After turning on the phone screen, the screen feels clearer than usual to the naked eye, and the light is softer.