Patent ID: 6785036
Filing Date: 2004-08-31
Classification: G02F

Abstract:
An electrochromic display element which comprises:1) a first electrode comprising: a first substrate, made of transparent material in the form of a sheet having a smooth flat surface; a first electrically conductive layer, located on said flat surface of said first substrate and being continuous and transparent; and a periodic or aperiodic pattern of strips or grid made of metallic conductive material located outside of said first substrate, and above or below said first electrically conductive layer and in continuous electrical contact with the same; 2) a second electrode comprising: a second substrate, made of material which is the same as or different from that of said first substrate, in the form of a sheet having a smooth flat surface; a second electrically conductive layer, located on said flat surface of said second substrate and being continuous and optionally transparent; and optionally, a periodic or aperiodic pattern of strips or grid made of metallic conductive material located outside of said second substrate, and above or below said second electrically conductive layer and in continuous electrical contact with it; 3) an electrochromic medium; and 4) means for maintaining the electrically conductive layers of said first and second electrodes in spaced-apart proximity facing each other, and for holding said electrochromic medium between said first and second electrodes.