The smart switchable glass is for the Qsingtao hotel in China which with over 500sqm of the smart glass applied to the showerdoor. Dimming glass is a liquid crystal film composite into the middle of the two layers of glass, high temperature and pressure glued one-piece structure of the sandwich structure of the new special optoelectronic glass products. The user controls the transparent and opaque state of the glass by controlling whether the current is on or off. The glass itself not only has all the features of safety glass, but also has the privacy control function to control the transparency of the glass. Due to the characteristics of the liquid crystal film interlayer, the dimming glass can also be used as a projection screen instead of the ordinary screen to present a high definition image on the glass image。