Patent ID: 6995892

Claim:
An electrically controllable device comprising: (i) a substrate, (ii) a lower electrode comprising a plurality of strips, each strip extending in a first direction, (iii) an upper electrode comprising a plurality of conductors, each conductor extending in a second direction, (iv) n regions of electrochromic material comprising a stack comprising a first active layer, a second active layer, and an electrolyte disposed between the first active layer and the second active layer, (v) a first power supply for providing an electric current to the lower electrode, and (vi) a second power supply for providing an electric current to the upper electrode; wherein the lower electrode is closer to the substrate than the upper electrode; the lower electrode contacts the first active layer; the upper electrode contacts the second active layer; the lower electrode and the upper electrode intersect each other in n intersection regions; the n regions of electrochromic material are disposed between the upper electrode and the lower electrode in each of the n intersection region to define n pixels wherein the pixels are arranged in x row parallel to the first direction and y columns parallel to the second direction, with each pixel comprising a level comprising a portion of the lower electrode, a level comprising a region of electrochromic material, and a level comprising a portion of the upper electrode; and each of the n pixels are physically separated from each other; wherein at least a portion of at least one face of the stack does not contact a solid insulating material.