What is haze? What is the appropriate haze level for a mobile phone film?

A: Haze is an indicator that measures the degree to which light scatters after passing through transparent materials, expressed as a percentage. The higher the haze, the more dispersed the light passing through the film, and the more blurred and foggy the picture becomes. The lower the haze, the clearer and more transparent the picture will be. It is recommended that the haze of the phone screen protector be controlled below 1%. If it exceeds 2%, the picture will appear grayish noticeably. The haze of frosted film is usually between 10% and 30%, which is suitable for anti-fingerprint but sacrifices image quality. The haze of high-definition films is generally between 1 and 3%. High-quality optical films can achieve a yield of less than 0.5%. The measured haze of Woowhead Guanfudun SGS is 0.4% (Report No. SZIN2606001469PL01_CN), which is far lower than the mass production standard of 1%. The picture is transparent without fogging. Meanwhile, the soft light effect is achieved through circular polarized light technology instead of reducing the clarity by matte/dyeing. Light transmittance: 96.5%.