When not connected to a voltage, typically the transmittance can be as low as 2%. When connected to a voltage, it can be up to 80%, but this maximum value varies from manufacturer to manufacturer.
Share with you all about smart glass.
Why is PDLC considered to be smart?
The smartness of PDLCs is a result of its ability to change its transparency (technically called the transmittance) when an electrical stimulus is applied to it. This is normally by way of an alternating voltage, which exerts an alternating electric field across the PDLC material.
Nevertheless, the PDLC is only as smart as the control system which stimulates the change, which can be driven by a push button switch, a light sensor, or a building automation system.
More related
How much light does PDLC glass transmit?
How Much Do Smart Glass Windows Cost?
The following information is from homeadvisor.com.
Smart Glass Cost
Smart glass costs $25 to $150 per square foot. Glass with film pre-installed is $50 to $150 per square foot, compared to $25 to $50 per square foot for the film alone. Price depends on the total square footage, with single units running up to $50 per square foot more than you’d pay to install several.
Smart glass makes it easy to change the look of your windows in an instant. You can make them completely opaque for privacy or add tinting to shade a home and cut your energy consumption. There are a few different types with unique benefits, so you’ll need to choose the one that’s right for you. Keep these cost factors in mind as you browse.
Average Smart Glass Price
| Average Cost | $100 Per Square Foot |
| High Cost | $150 Per Square Foot |
| Low Cost | $25 Per Square Foot |
Smart Glass Cost Per Square Foot
Smart glass costs $50 to $150 per square foot. Installers usually set rates by the project, offering a lower price per square foot if you replace several windows. One piece runs $125 to $150 per square foot, compared to $50 to $100 per square foot for 100 or more square feet. The cost to install a window with standard glass is $15 to $30 per square foot.
Smart Glass Pricing by Type
Smart glass prices are $50 to $150 per square foot, depending on the total square footage and type:
PDLC: Privacy, frosted, tinting
SPD: Tinting in an instant
Electrochromic: Gradual tinting to a set level
PDLC
PDLC glass tends to be the most expensive option. It offers privacy at the touch of a button, making it ideal for indoor and outdoor applications. This technology is the only type that turns completely opaque, which means you can use it for bathrooms, showers, private offices and more. You can also turn it into a television projector.
PDLC has crystals that are both liquid and solid, similar to what you’d get in an LCD television or monitor. It has a lot of names, including:
Electric privacy glass
LCD glass
Electric frosted glass
The crystals are inactive when turned off, which makes the glass appear frosted or dark. Once you turn it on, the window is completely clear or dimmable.
SPD
SPD glass is the middle-of-the road cost option, with pricing a little lower than PDLC. This type allows you to select the level of tinting from minimally shading to full darkness, although it can’t provide complete privacy. Its heat-blocking features make it a great choice for exterior windows. You can also use it for any interior room that needs additional darkness in daytime, like a home theater or child’s bedroom.
SPD suspends particles in a liquid. When you turn on the device, it brings those particles in line and allows you to the control the level of tinting. Like PDLC, these windows are dimmable.
Electrochromic
Electrochromic glass is the cheapest option. This type allows you to change the tinting over the course of a few minutes. It uses ions to force particles to the inside or outside of the window, making the material clear or tinted. Those particles stay in position until you use the control to move them again.
Electrochromic glass is similar to photochromic or thermochromic tinting, but it’s important to understand the difference. Photochromic and thermochromic products, like Transitions eyeglass lenses, tint based on light or heat. They don’t require energy to change, but you can’t control them. Electrochromic options use energy comparable to a single LED lightbulb, and make it easy to change whenever you want.
Switchable Glass Prices vs. Smart Window Film
Switchable glass, which may refer to PDLC, SPD or electrochromic products, costs $50 to $150 per square foot and includes all materials and installation. If you want to buy smart film that you can have a pro apply to your existing windows, you’ll pay $25 to $50 per square foot.
| Brand | Glass | Film |
|---|---|---|
| Smart Tint | N | Y |
| Invisishade | Y | Y |
| Sonte Film | N | Y |
| Smart Film | N | Y |
| View | Y | N |
| Gauzy | Y | N |
| GlobalSmartGlass.com | Y | Y |
What is the power consumption of smart glass/film?
Smart glass/film consumes less than 5W/sqm.
What is the power source of smart glass/film?
Smart glass/film is operated using 48-65VAC power supply. Transformer will be needed for 110-230V power source.
How long time does smart glass/film change from opaque to transparent?
Smart glass/film change in 1/100 second from opaque to transparent and 1/10 second from transparent to opaque.
