SMART FILM PNLC · REVERSE LOGIC
Smart Film PNLC: clear when off, opaque on command
Switchable glass with the logic reversed. With no power it stays clear; one electrical pulse and it turns opaque — the opposite of standard PDLC.
Clear when it’s off. Opaque only when you switch it on.
Smart Film PNLC is a liquid-crystal film with the logic of standard PDLC reversed. At rest, with no power, the glass is clear and transparent; under voltage it turns opaque and blocks the view. It’s built for surfaces that stay clear most of the time and darken only when needed: you power the glass for privacy, not for transparency.
If privacy is the state you need more often, there’s the direct logic: Smart Film PDLCLose power and the glass stays clear. That’s where it counts.
There’s one setting where reverse logic isn’t a preference but a requirement: safety. Glass that stays clear without voltage never blocks an escape route, never darkens a room during a blackout, never isolates the people inside an emergency vehicle. Wherever a power loss has to leave the surface visible — emergency exits, vehicles, regulated environments — PNLC is the natural choice, because its resting state is the safe state. The flip side of this logic is that staying opaque draws power continuously. For surfaces that need to stay dark for long stretches it’s less efficient than standard PDLC; PNLC is at its best where clear is the usual state and opacity is occasional.
Where this logic meets a regulated environment: switchable glass for healthcareThe same switchable logic. No moving parts.
Underneath it’s still switchable glass: a thin liquid-crystal film between two conductive layers. The difference is in the formulation, which inverts the response to voltage — with no power the crystals let the view through, under voltage they scatter light and the glass turns opaque. It’s controlled by switch, remote, app or automatically — like every switchable surface we make.
How switchable glass worksIndependent by nature. Connected when it matters.
A single surface is controlled with one gesture — switch, remote, app — and comes in two forms: switchable adhesive film, retrofitted onto existing glass, or laminated glass with the film already integrated for new builds, both covered by a 2-year warranty. Where surfaces multiply, across whole rooms or façades that need to respond together without manual input, you can integrate B-LOGIC, the control platform that coordinates multiple surfaces through unified logic.
Discover B-LOGICLet’s talk about your project.
Intended use, safety requirements, surfaces, integration: every project is different. Tell us what you need and we’ll prepare a dedicated proposal.
Request a quote