Switchable SPD Films Market by Product Type (Film Roll, Integrated Laminated Glass Unit, Laminated Interlayer), Installation Method (Embedded Between Panes, Integration During Manufacturing, Lamination Into Glass), Control Mechanism, Form Factor, Performance Characteristics, Optical Properties, Thickness, Power Requirements, Pricing Tier, Compliance And Standards, Customization Level, Application, Distribution Channel - Global Forecast 2026-2032