Dynamic Privacy Glass PrivacySwitch Goes Into Mass Production: Switching Between Transparent and Frosted in 0.5 Seconds

Dynamic Privacy Glass PrivacySwitch Goes Into Mass Production

On October 8, 2030, Chinese materials technology company Gauzy China announced the official mass production of its PrivacySwitch dynamic privacy glass. The product sandwiches a layer of electrochromic polymer film between two glass panes, controlling the glass from fully transparent (85% light transmittance) to fully frosted (5% light transmittance) through applied voltage, with a switching time of just 0.5 seconds.

PrivacySwitch's predecessors include suspended particle device (SPD) and polymer-dispersed liquid crystal (PDLC) technologies, but both suffered from high energy consumption, short lifespans, or color distortion. Gauzy China's electrochromic polymer solution reduces power consumption to 5 watts per square meter (drawing power only during state transitions, with zero power to maintain state) and has a design lifespan exceeding 20 years.

Gauzy China CEO Chen Yaoting said PrivacySwitch's initial target markets are premium office buildings and hospitals. "Conference room glass walls are transparent for natural lighting during normal times and switch to frosted with one touch during meetings for privacy. Hospital ward windows can switch between transparent and opaque as needed."

PrivacySwitch's standard size is 1.2x2.4 meters, priced at approximately 800 RMB per square meter — about 4 times that of traditional fixed frosted glass but 60% less than imported comparable electrochromic products. The company plans to increase production capacity to 100,000 square meters per month by 2031.