The growing market for flexible electronics devices is asking for reduction
of manufacturing process complexity. One way to reduce complexity is to
decrease the number of single components of a device by using integrated
modules, i.e. device components providing multiple functions. In this
article, the concept of a self-powered electrochromic graphics display
device is demonstrated. The device is based on a three electrode system
comprising an electrochromic electrode, a battery anode and a battery
cathode, all in contact with a common electrolyte. The electrochromic
electrode can be charged and discharged directly when connected to either
the anode or cathode. Such a self-powered display integrates the functions
of both a display and a battery. As part of a flexible electronics device, a
self-powered display would be able to power other components, such as driver
electronics.