Infotainment Tech To Give BMW A Run For Its MoneyThe other patent might take greater hold, however. It describes smart glass, specifically for the panoramic sunroof, although it could theoretically be used anywhere Porsche uses regular glass. The smart glass uses a thin color film (not unlike Porsche's "E-ink" patent) on its surface, which changes in opacity when an electrical current is applied. The automaker already offers an electrochromic glass roof on the Taycan, but the tech described in the patent improves on what's currently available by selectively blocking specific wavelengths. That means your roof (or other smart glass panels) could become an information display, visible either from the interior or exterior of the car. It's not the first time we've heard about interactive glass; Continental unveiled projection technology at CES 2025, but Porsche's patent uses electrochromics instead.