Overview of intelligent dimming film technology

Intelligent dimming film is a functional film that controls optical performance through electrical signals. It can quickly switch between transparent and atomized states and is widely used in construction, automobiles, consumer electronics and other fields. Its core technologies mainly include three solutions: polymer dispersed liquid crystal (PDLC), electrochromic (EC) and suspended particles (SPD).

PDLC dimming film is the most common type. It relies on the electric field to drive the orderly arrangement of liquid crystal molecules to achieve light transmission, with a fast response speed (millisecond level), but it is in an atomized state when power is off. **Electrochromic (EC) film**Changes color through ion migration, energy-saving and gradually adjustable, but slow response (seconds). The SPD film needs to be continuously powered on and maintained transparent, which is suitable for high-blocking needs scenarios.

The intelligent dimming film supports touch, APP or voice control, and can be integrated with solar energy and IoT systems to promote the development of green buildings and smart cockpits. In the future, with the advancement of flexible substrates and low-power technologies, dimming films will show greater potential in wearable devices, AR displays and other fields.