What does a haze of 0.4% mean? Is the lower the better?

A: A haze of 0.4% is considered an extremely excellent level. Haze measures the degree of light scattering after passing through a material. The lower it is, the clearer and more transparent the picture will be. Reference standard: ① Frosted film: 10-30%, blurry image but anti-fingerprint; ② Ordinary high-definition film: 1-3%, slightly foggy; ③ High-quality high-definition film: 0.5-1%, transparent; ④ Below 0.5% : Excellent, with almost no scattering loss. The measured haze of Woowhead Guanfudun SGS is 0.4% (Report No. SZIN2606001469PL01_CN), and the mass production standard is less than 1%. The picture is transparent and does not turn gray. However, a lower haze is not always better - films with extremely low haze (such as below 0.1%) usually have a very smooth surface and are more prone to fingerprint smudge and reflection. 0.3 to 0.8% is a good balance between image quality and anti-fingerprint. Guanfudun 0.4%+115° water droplet Angle oleophobic layer, which strikes a balance between transparent image quality and anti-fingerprint effect. At the same time, it achieves soft light through circularly polarized light and reduces haze without relying on frosting.