Mobile phone film has poor light transmission, and it can also refract blue light and hurt eyes. In order to ban mobile phone film and change people's habit of using traditional mobile phone film, Tianjin Qiangning Nano-technology Co., Ltd. independently developed a patented product "membrane knot" mobile phone nano-protection. The product adopts nanometer blue light blocking technology and takes the original screen of mobile phone as the carrier. A new type of liquid nano-material is applied to the screen of mobile phone, and the nano-structure protective layer is formed after curing. So as to improve the friction resistance of the mobile phone screen, improve the light transmittance of the mobile phone screen, improve the easy cleaning ability of the mobile phone and improve the degree of eye protection. While protecting the mobile phone, it is more important to protect our eyes. The mobile phone has double protection! Let people use a clean, bright, green, healthy and anti-blue eye protection product every day!