The solid state electrochromic phenomenon and its applications to display devices

The development of a solid state electro-chromic device for display applications is reported in this paper. The electro-chromic structure consists of a multilayer thin film system and therefore, successful fabrication of it requires optimization of each constituent layer with respect to various deposition parameters. We discuss the physical principle, the fabrication methods and operational characteristics of a typical system. Some of the other systems involving "super-ionic conductors" and impurity doped systems are also considered.