What makes smart glass switchable? Learn how electrical current transforms privacy glass from clear to frosted. Explore wiring options, control methods, and the myriad of applications of smart film and glass across sectors.
In an era where innovation and technology redefine the boundaries of what we once thought possible, smart glass emerges as an example of human ingenuity. Transforming from clear to frosted with a mere flick of a switch, smart glass technology seems like magic. But how exactly does privacy glass work?
The switchable properties of smart film and glass are not magic, they are accomplished with the application of electrical current. In this article we will explain how smart glass and smart film work, how it is powered and how much power it consumes.
The Technology Behind the Magic
At its core, smart glass operates on the principle of electrically manipulating its properties. Tiny polymer-dispersed liquid crystals, known as PDLC, embed within the glass. When you apply an electrical current, these crystals align, making the glass transparent. On the other hand, without electricity, these crystals scatter light, giving the glass an opaque appearance.
At the heart of this technology lies PDLC (Polymer Dispersed Liquid Crystal), a medium whose light-scattering properties you can manipulate using an electric field. PDLC film consists of a polymer matrix of liquid crystals enclosed by electrically conductive Indium Tin Oxide-coated PET film. You wire this film to a conductive copper strip, also known as a busbar, along its edge. Once connected to a power source, the current aligns the liquid crystal molecules, transitioning the glass from opaque to transparent. Consequently, people often refer to smart glass as PDLC glass or PDLC window film.
How Are Smart Film and Glass Connected to a Power Source?
There are many ways to wire smart glass, but all methods require connecting the wires from the busbar to a power transformer, then linking it to the electrical power source.
The wattage of the transformer depends on the size of the glass area you want to control. At Smart Glass Country, we offer 50-watt, 100-watt, and 200-watt transformers. Additionally, we can provide dimmable transformers for customers who need adjustable privacy.
You can wire switchable window film and glass on a variety of glass surfaces, including operable glass walls, windows, and glass doors. For more details on wiring smart glass, watch the video below.
Remember, a certified electrician should complete all wiring.
How Much Electricity Does Smart Glass Consume?
Now, let’s address the elephant in the room: power consumption. While privacy glass indeed requires electricity to function, the amount it consumes is relatively minimal. On average, only 5 watts of power are consumed per 10 square feet of smart glass or film. To put it into perspective, this energy usage is akin to that of a standard 60-watt light bulb.
What Happens to Smart Glass In the Event of a Power Outage?
If the electricity supply is cut off while the smart glass is switched on (clear) the glass will simply become opaque, just as it would if it were switched off.
How is Smart Glass Controlled
There are many ways to control smart glass and film. The process of switching PDLC glass from clear to frosted is similar to turning a light on and off. Every order of switchable glass or film comes equipped with a transformer and a remote control. However, you can also switch the glass on and off using a wall switch, smartphone, home automation system, voice command, or a button.
The versatility of smart glass extends across various sectors, including residential, commercial, retail, healthcare, hospitality, and banking. For example, it works well in conference rooms, ICU doors, changing rooms, and safe deposit rooms—its applications are boundless. Furthermore, as technology continues to evolve, the potential for further innovation in smart glass remains promising.
By applying electricity, switchable glass technology transforms spaces, offering both privacy and transparency at the touch of a button. Looking ahead, the horizon of possibilities for smart glass appears limitless, signaling a new era where form seamlessly meets function.
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