
How Smart Dimming Glass Works: The Science Behind Instant Privacy
Glawall's PDLC (Polymer Dispersed Liquid Crystal) dimming glass operates through advanced electro-optical technology, enabling seamless transitions between transparency and opacity. Here's a breakdown of its engineering:
1. Core Structure | Layer Function | Outer Glass Panels 2x tempered glass sheets (5-12mm thickness) for durability/safety |
PDLC Film Liquid crystal droplets suspended in polymer matrix (50-200μm thickness) |
Conductive Coating Transparent ITO (Indium Tin Oxide) electrodes on both sides |
Interlayer PVB or EVA laminate for impact resistance |
2. Operating Principle | A. Power-OFF State (Opaque/Frosted) | Liquid crystals randomly scatter light (like shattered glass) |
Light transmission: <5% (privacy mode) |
Applications: Confidential meetings, medical exams |
B. Power-ON State (Transparent) | Electric field aligns crystals parallel to light path |
Light transmission: >80% (crystal-clear view) |
Response time: 0.5 seconds (industry fastest) |

3. Technical Specifications | Parameter | Performance |
Voltage | 48-110V AC (low-energy) |
Power Consumption | 5W/m² (similar to LED lighting) |
Switching Cycles | 100,000+ (10+ years at 30 cycles/day) |
Temperature Range | -30°C to +80°C operational |
UV Resistance | Blocks 99% UV rays |
4. Control Systems | Wall Switches (Standard) |
Mobile App (iOS/Android via Bluetooth/WiFi) |
Voice Control (Alexa/Google Home integration) |
Automation (Triggers via: Room schedules/Light sensors) |


5. Unique Advantages vs. Alternatives
Feature PDLC Dimming Glass Traditional Blinds |
Space Saving Zero footprint Bulky mechanisms |
Hygiene Non-porous surface Dust-trapping slats |
Maintenance None required Regular cleaning |
Aesthetics Sleek, modern Visual clutter |
"Where physics meets design—transforming spaces at the speed of light."

The working principle of dimming glass is mainly based on the following aspects:
Dimming glass is usually composed of a layer of liquid crystal film (polymer dispersed liquid crystal) sandwiched between two pieces of glass.
When the power is off, the liquid crystal molecules are arranged in disorder, and the light cannot pass through normally, and the glass appears opaque; when the dimming glass is powered on, the liquid crystal molecules are arranged in order under the action of the electric field, so that the light can penetrate, and the glass becomes transparent. By controlling the on and off of the power supply, the glass can be easily switched between transparent and opaque states. The realization of this dimming function mainly depends on the change of the scattering and transmission characteristics of the liquid crystal molecules to the light, so as to achieve the effect of adjusting the light transmittance and transparency.

