There are many smart glass technologies available on the glazing market that can change the optical performance. One of them is PDLC (Polymer Disperced Liquid Crystals) technology. It is inexpensive and allows you to change the haze of the glass. PDLC is usually supplied in a white milk film for subsequent glass lamination. When high AC voltage is applied, the film becomes transparent, most of the haze is gone. If the tension decreases, then it gradually becomes cloudy. In the complete absence of tension, the film becomes completely opaque. This provides complete privacy, but the light transmission remains the same as in the transparent state.
Unlike Octoglass electrochromic glass, PDLC technology uses high voltages in excess of 50 volts AC, which in turn can be hazardous to use. Another advantage of Octoglass electrochromic glazing is the absence of additional haze. The finished electrochromic glass has the same haze as regular automotive glass. And of course, Octoglass electrochromic glass is tinted in neutral black and even in the darkest state it will be visible through it what is happening outside.
