ELECTRICALLY-CONTROLLABLE DEVICE WITH VARIABLE OPTICAL AND/OR ENERGY PROPERTIES

摘要

The invention relates to an electrically-controllable device with variable transmission or reflection optical/energy properties. The inventive device consists of at least one support substrate which is equipped with a stack of layers with electrochromic function, said stack comprising at least two active electrochromic layers which are separated by an electrolyte and being disposed between two electrical leads, namely: a lower lead which corresponds to the lead closest to the support substrate, and an upper lead which corresponds to that furthest from the substrate. The invention is characterised in that the stack of functional layers is associated with at least one polymer film having a contraction percentage of between 0.6 and 4 %, preferably between 0.6 and 2 % and even more preferably between 0.8 and 1.5 %.