The mobile phone screen privacy filter protector, the front of the screen displays normal data reading, and anyone can only see the dark screen at 60° on both sides of the visible area, which effectively protects commercial secrets and personal privacy. The bright red for privacy is unique and suitable for any public place. Effectively prevent blue light and ultraviolet rays from harming the human body, and daily protection against scratches, explosions, and breaks. Good exhaust performance and simple installation.