What are the major reasons for using PDLC smart glass?

Enhanced security (since the glass is shatter-proof thanks to the internal plastic lamination)
Privacy (thanks to the scattering of light, essentially hiding whatever is behind the smart glass)
Glare reduction (again thanks to the scattering effect)
Reduction of the carbon footprint of the building thanks to the solar control, which reduces HVAC needs, both in summer and in winter
Reduced colour fading of interior furnishings and artworks, thanks to the rejection of UV
Creative marketing, since when the PDLC smart glass is off, the scattering effect creates a screen upon which you can project images.

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Does PDLC smart glass conduct electricity?

No, the internal PDLC layer is plastic and does not conduct electricity, since it is electrically insulated. Rather, it behaves more like a capacitor, where the applied signal alternates between positive and negative voltages at the plates of the capacitor, causing an alternating electric field throughout the PDLC dielectric, which is what aligns the liquid crystals with the frequency of the signal (normally 50 Hz or 60 Hz).

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Why does PDLC require a polymer?

The polymer allows the liquid crystals to be embedded into a film, which can then be sandwiched between panels of glass or plastic. The polymer has constant optical properties which do not vary across its structure, and hence is considered isotropic.
In contrast, the liquid crystal itself is anisotropic, since its optical characteristics are not constant across its structure, but rather can vary under application of an electric field.

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what is the difference between self-adhesive smart film and smart glass

1. What is self-adhesive smart film and smart glass

Self-Adhesive Smart Film:

A flexible polymer-based film (typically PDLC: Polymer Dispersed Liquid Crystal) with an adhesive layer on one side. It is applied directly to existing glass surfaces like a sticker.

Smart Glass:

A laminated glass unit where PDLC film is permanently sandwiched between two layers of glass using EVA or PVB interlayers under high pressure/temperature. This creates a solid, structural glazing product.


2. Installation & Application

Feature Self-Adhesive Smart Film Smart Glass
Installation Peel-and-stick onto existing glass; DIY-friendly. Requires professional glazing; replaces entire glass unit.
Best For Retrofitting existing windows/glass partitions. New constructions or full renovations.
Complexity Some skill is needed:
1. How to install the film;
2. How to deal with the edge sealant;
3. How to hide the wire.

How to install the self-adhesive smart film?

Install the glass as the normal glass except for considering how to hide the wire.
How to make smart glass?

3. Functionality & Performance

• Optical Clarity:
Both switch between transparent (ON) and opaque (OFF) via electricity. Smart Glass often has higher clarity due to glass encapsulation.

• Energy Efficiency:
Identical function: Blocks ~99% UV rays and reduces heat gain.
Power consumption is low (~5W/m²/hour).

• Durability:
Smart Glass is more robust (scratch resistant, impact-resistant, safety-glass properties, longer life time). Film is vulnerable to peeling/scratches comparing with smart glass.

• Safety:
Smart glass remains secure after breaking. Film lacks structural security but can prevent glass from shattering.


4. Applications

• Film: Ideal for retrofitting offices, shower doors, storefronts, or rental properties.

• Glass: Suited for high-end architectural projects (facades, security rooms, partitions), automotive sunroofs, and aviation.


5. Pros vs. Cons Summary

Type ✅ Pros ❌ Cons
Self-Adhesive Film Affordable, easy install, UV/heat blocking, retrofit-friendly Less durable, no structural safety, prone to air bubbles, Lower clarity than smart glass.
Smart Glass Premium finish, enhanced safety/durability, seamless integration, higher clarity and performance than film. High cost, inflexible for existing spaces, complex replacement.

Conclusion

Choose self-adhesive smart film for cost-effective, non-invasive upgrades to existing glass. Opt for smart glass in new builds or high-traffic areas demanding durability and safety. Both deliver dynamic privacy/energy savings but cater to different project scales and budgets.

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Can smart glass/film be used in wet areas?

Yes, smart glass/film can be used in wet areas such as bathrooms. The edges of smart glass/film are are sealed with a non-acid silicone gel that prevent any contact with water.

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How to make smart glass?

How to make smart glass?
Step1. Wash and clean the glass.
Step2. Move the glass to the cleanroom for lamination.
Step3. Check the lower glass and clean possible stains.
Step4. Lay the pre-cut EVA interlayer on the lower glass.
Step5. Lay the PDLC film with busbars onto the EVA interlayer. During the process, the lower protective liner is removed. Then remove the upper protective liner. Note: Do not leave fingerprints or stains on the PDLC film.
Step6. Carefully adjust the position of the PDLC to align with the glass.
Step7. Lay out and align the upper layer of EVA interlayer.
Step8. Check and place the upper glass, carefully adjust the position of the glass to align with the lower glass.
Step9. Check the glass carefully to remove possible dirty spots and stains inside the glass.
Step10. Cut off the EVA interlayer to align with the glass.
Step11. Fix the busbars leads with high temperature tape, and wrap the glass edge with high temperature tape.
Step12. Move the glass to the next operating table.
Step13. Wrap the whole piece of glass in PET film.
Step14. Bond the PET film with silicone sealant strips to form a vacuum bag.
Step15. Set the vacuum port.
Step16. Pump the vacuum bag. Fold and firm the sides of the vacuum bag with high temperature tape.
Step17. During the pumping process, check whether the vacuum bag is leaking. After the pumping is complete, disconnect the pumping pipe.
Step18. Move the glass to the heating platform, connect the glass vacuum port to the vacuum system of the heating oven or autoclave, transfer the glass to the heating oven or autoclave, and heat the glass.
Step19. Heating. parameter settings.
Step20. After heating, remove the glass from the heating oven or autoclave. To pack and store.
If you want to get more informaion, please feel free to visit globalsmartglass.com.
https://globalsmartglass.com:Switch the smart glass,switch to a new world.

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Can smart glass/film be used as display screens?

Yes, smart glass/film is a rear projector screen with wide viewing angles. Even from the side one can enjoy clear, beautiful images and also in bright locations with high functional projectors.

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