This is exactly what you would expect from Japan, innovation! If you ever dreamed of having windows that can switch between being transparent to tinted or a mirror, this might be your chance to invest in this man and get the tech. Until now, switching has been done with glass. But with this sheet technology, you can switch a window between transparent and mirror states simply by affixing the sheet to the window.
On the back, there’s an acrylic sheet, and the new sheet we’ve developed is attached at the corners using tape. There’s inevitably a gap of 0.1 mm between the glass and the sheet. We fill the gap with hydrogen, which is produced by the electrolysis of water. In this way, the sheet can be switched from the mirror state to transparent.