The core principle of the anti-privacy screen protector is called "ultra-fine shutter" optical technology. The "blind" is placed in the screen layer as a "privacy-proof structure layer", and the wide viewing angle of the screen is changed into a narrow viewing angle through the control of the light angle.
When the light shines on the anti-peeping screen protective film, most of the light is blocked by the grating, and only a small part of the light that is basically vertically irradiated on the film can be reflected from the space, which reduces the visible range of the screen and prevents peeping. Effect.
This technology is also used on the screens of ATM machines - it is clear from the front and black from the side, preventing people from peeking into the personal information of the account. As a result, anti-spy screen protectors have also been touted as a must-have for dormitories, a subway artifact, and a magic weapon for the office.
In addition to taking into account the function of protecting the screen, the privacy screen protector adds a privacy coating to the screen protector, using micro-louver optical technology. The principle is similar to that of common blinds. Adjust the viewing angle and ignore angle.