German 
Polish 
English 
Czech 
Spanish 
Italian 
A sound specification does not start with a product name. It starts with whether the whole pane switches together, independent zones are needed, glazing is fixed or openable and who operates it. The product choice then becomes clear and defensible.
The common feature is an active layer switching between clear and frosted. That does not mean full blackout, automatic acoustic insulation or unlimited dimensions. Each pane and complete build-up is confirmed for its project.
1. DGF Classic — the simplest two-state scenario
Choose Classic when the whole active surface should be clear or frosted at once. It naturally suits meeting rooms, private rooms, bathrooms and simple partitions. One switch creates one clear change.
Simple operation does not remove coordination. Final dimensions, glazing, cable exit, power supply and service access still need confirmation. Classic is a pane engineered for its location, not a site-cut module.
2. DGF Segment — privacy in selected areas
Segment divides the active surface into independently controlled areas. Screen the lower part, retain light above eye level or create recurring scenes. Number, proportion and order are set before manufacture and should follow furniture, framing and actual views.
More zones do not always mean a better solution. Each adds circuits and user decisions. Segment is valuable when zoning answers a clear scenario, such as observation in a consulting room or partial screening in a boardroom.
3. DGF Colour — an active pane as an interior material
DGF Colour combines switching with a colour effect. It suits showrooms, hotels, reception areas and bespoke interiors where the pane shapes atmosphere. Colour should not be chosen from a screen alone.
View samples in both states, under representative light and next to proposed materials. Perception depends on context, pane size and viewing direction. Treat it like selecting stone or veneer.
4. Smart window — active function in moving joinery
A window adds coordination: glazing has defined thickness and weight, the sash moves and wiring cannot crease or conflict with hardware. New joinery can be planned early. Existing windows first require checks of profile, support, movement and replacement feasibility.
A smart window screens views without a blind, but the frosted state is not full blackout or automatic solar shading. Those parameters must be addressed in the complete window design when critical.
5. SUPLA — controls as a layer, not a glass type
SUPLA can add an app, scenes, schedules and remote access to agreed circuits. It is especially useful with several panes or DGF Segment, but it does not replace decisions about glazing, power supplies and physical wiring.
The core function should remain locally accessible. In meeting rooms, bathrooms and private rooms users should switch without finding a phone. Automation works best when it reinforces simplicity.
6. From need to quotation
Prepare dimensions, pane count, photo or plan, profile type, required states and controls. Explain who looks through the glass, when the view should disappear and whether glazing is fixed or moving. That is more useful than a generic square-metre price question.
Analysis then identifies the variant, missing coordination and DGF scope: active-pane design, manufacture, power, controls, installation and commissioning. The quotation reflects the actual project.