Technology

Smart Film Transparency Levels

Awadrey Delgado

June 12, 2026

By the Deluxe Smart Film team — reviewed by Awadrey Delgado, founder (500+ switchable film installations in South Florida since 2020) — Updated 12 June 2026

Evaluating Clarity and Opacity in Smart Film

When investing in smart film, the visual quality of the product is paramount. You want it to be as clear as possible when ON, and completely private when OFF. Understanding the metrics of transparency will help you choose the best product.

The "ON" State: Clarity and Haze

When power is applied, the film becomes transparent. However, because you are looking through layers of polymer and liquid crystals, there is always a slight degree of light scattering, known as "haze."

High-quality smart films, like those installed by Deluxe Smart Film®, have a very high light transmittance (often over 80%) and a very low haze factor (typically under 3-4%). Lower-quality films may look slightly milky or cloudy even when turned on. Always ask to see a physical sample to evaluate the clarity.

The "OFF" State: Opacity and Privacy

When the power is cut, the film must provide absolute privacy. In its frosted state, high-quality PDLC film blocks visual details entirely, though it still allows ambient light to pass through. This means you cannot see shapes or details through the glass, ensuring total privacy for bathrooms or boardrooms.

Viewing Angles

Another important factor is the viewing angle. Premium smart films maintain their clarity even when viewed from a sharp angle. Inferior films may look clear straight on but become hazy or distorted when viewed from the side.

Conclusion

The quality of the liquid crystals and the manufacturing process dictate the transparency levels of smart film. Choosing an installer who uses premium-grade PDLC is what gives you the best clarity and privacy the technology can deliver.