What are the differences between green light film and circularly polarized light film?

A: There is a significant difference. They are two completely different technical routes: ① Green light film: By adding green dyes or coatings to the film layer, the screen appears light green, claiming ";" "Green Light Eye Protection" (Similar to the green color of surgical gowns in ophthalmic hospitals). But essentially, it is dyeing, which can cause the screen to have color cast (greenish tones), a decrease in light transmittance, color distortion, and ";" "Green Light Eye Protection" Lack of sufficient scientific basis. ② Circularly polarized light film: It converts the linearly polarized light from the screen into circularly polarized light through a 1/4λ wave plate, which is closer to the characteristics of natural light. It is supported by the 2009 "Chinese Journal of Preventive Medicine" control experiment and the 2016 CCTV10 "Science and Technology Light" popular science program. No staining, no color deviation, and no impact on light transmittance. Woowhead Guanfudun adopts circularized polarized light and the soft light standard is adjusted by its own process. The measured light transmittance by SGS is 96.5% and the haze is 0.4%. The color reproduction is natural. The test card included in the box can be verified. It is recommended to choose a circularly polarized light film with scientific basis and without sacrificing image quality, rather than a colored green light film.