Electrochromic multi-layer devices with spatially coordinated switching

An electrochromic device comprising a first substrate, a first electrically conductive layer on the first substrate, a second substrate, a second electrically conductive layer on the second substrate, and a first electrode layer comprising a first electrochromic material that is located between the first and the second electrically conductive layers, wherein:

• the electrochromic device is switchable from a more transmissive state to a less transmissive state;
• the first and second electrically conductive layers have sheet resistances to the flow of electrical current through the first and second electrically conductive layers that vary as a function of position in the first and second electrically conductive layers, respectively;
• and
• the sheet resistances of the first and second electrically conductive layers are asymmetric to one another and cause the electrochromic device to have a directional switch.