As smart buildings and intelligent interiors become more common, you may have come across terms like “smart glass” or “switchable privacy glass.” These refer to innovative glass products that can change from transparent to opaque on command. But how exactly does this technology work?
The answer lies in PDLC – Polymer Dispersed Liquid Crystal – the key material behind Tecdur Privacy Glass. In this post, we’ll explore what PDLC glass is, how it functions, and why Tecdur’s smart glass is considered the leading solution for both residential and commercial spaces in the UK and Ireland.
Explore the full range of Tecdur Privacy Glass to see how it can be used in your next project.
What is PDLC?
PDLC stands for Polymer Dispersed Liquid Crystal, a unique material that blends liquid crystal molecules into a polymer matrix. This mixture is then laminated between two panes of glass and connected to a power source. When an electric current is applied, the liquid crystals align, allowing light to pass through. When the current is switched off, the crystals scatter randomly, blocking light and making the glass appear frosted.
This rapid transformation is the science behind what makes switchable privacy glass work. It happens in milliseconds and can be repeated thousands of times without degrading performance—making it perfect for applications that require both visibility and privacy at different moments throughout the day.
How Tecdur Uses PDLC Technology
Tecdur is the UK and Ireland’s leading manufacturer of smart glass, and our team has fine-tuned the use of PDLC to create glass that boasts:
- The lowest haze levels in the market – for crystal-clear views when transparent.
- Lowest power consumption – reducing environmental impact and energy costs.
- Enhanced durability – thanks to a sealed laminate construction between toughened glass.
Tecdur Privacy Glass is available in both light and dark tints, and can be fully customised depending on the size, shape and performance needs of your project.
Key Advantages of PDLC Smart Glass
1. On-Demand Privacy
You control your visibility. Whether it’s a home bathroom, an office meeting room, or a hospital ward, privacy is just a switch away.
2. No Moving Parts
Unlike blinds, there are no mechanisms that can jam, break or require maintenance. PDLC glass is a sealed unit, offering reliable operation for years.
3. Energy Efficient
PDLC glass only uses power when switched to the clear state. Opaque mode consumes no energy, making it more efficient than other privacy options like motorised blinds.
4. Versatile Applications
Used in homes, offices, hotels, retail, healthcare and more. It’s equally suited to windows, partitions, doors or projection surfaces.
5. Easy Integration with Smart Systems
Tecdur Privacy Glass can be integrated with smart home systems, motion sensors, voice control, or programmed schedules for automated privacy.
Is PDLC the Same as Electrochromic Glass?
Not quite. While both technologies allow glass to change appearance, PDLC responds almost instantly and provides a full-privacy “frosted” look. Electrochromic glass typically changes tint to control solar gain and takes longer to transition between states. PDLC is the superior choice for privacy and opacity, while electrochromic glass is more suited for sun control.
Tecdur specialises in PDLC smart glass that prioritises privacy, speed, and clarity—essential for modern architecture.
Future-Ready Glass Technology
As buildings become smarter and more responsive, so should their materials. Tecdur Privacy Glass powered by PDLC technology is helping transform how we use space. It allows glass to serve multiple functions—transparent when needed, private when not—all while maintaining a sleek, minimalist aesthetic.
Whether you’re an architect, designer, or homeowner, Tecdur’s advanced Privacy Glass gives you the tools to build smarter, more adaptable spaces.
Have questions about PDLC or smart glass installation?