Currently, the main technical routes to achieve dimming include the following:
- PDLC (Polymer Dispersed Liquid Crystal): Advantages are fast response time and mature technology. However, disadvantages include high haze, high energy consumption, and limited heat insulation capability.
- SPD (Suspended Particle Device): Advantages are fast response speed. However, disadvantages include relatively high energy consumption, difficulty in achieving a neutral black color, and poor visual comfort.
- LC (Dye Liquid Crystal): Advantages are fast response time and the ability to achieve a black state. However, disadvantages include limited heat insulation, difficulty in adapting to the large curved glass of automobiles based on glass substrates, and high cost.
In comparison, Electrochromic (EC) technology is currently the direction that most systematically meets the requirements for full-vehicle application:
Large Curved Surfaces + Large Areas: Can Be Fabricated into Different Zones
Our flexible solid-state EC film possesses excellent bendability, enabling perfect integration with the complex curved glass designs of modern vehicles, making unified dimming across the entire car possible.
Neutral Black: Meeting Visual Comfort Requirements
It has successfully developed black EC material overcomes challenges such as uniform color change and long-term stability. This unique black EC film provides users with a comfortable visual experience.
High Contrast Ratio: Meeting Full Scenario Requirements
Its high contrast ratio dimming technology supports smooth adjustment across a wide range, from high transparency to near-total blackout, meeting the stringent requirements for different areas like the front windshield, side windows, and sunroofs.
It is precisely based on these technological breakthroughs that EC dimming sunroofs and side windows have beenimplemented in multiple high-end models from brands like NIO and Audi. This not only verifies the maturity and reliability of their technology but also lays a solid foundation for achieving full-vehicle dimming at a commercial level.
Full-vehicle dimming is by no means a simple stacking of technologies; it is a systematic engineering project that requires achieving a perfect balance between curved surface compatibility, light transmittance, color neutrality, low haze, and low power consumption.
