ELECTROCHROMIC ELEMENT HAVING COLOR EVEN DURING COLOR ERASING TIME

摘要

PURPOSE: To obtain an electrochromic (EC) element of various colors and an EC element having gradient density of color by coloring the adhesive which bonds a sealing plate. ;CONSTITUTION: A transparent lower electrode layer 2 comprising iridium oxide- tin oxide mixture (ITO) is formed on a transparent glass substrate 1. Then three EC layers 3 comprising iridium oxide layer, tantalum oxide layer and tungsten oxide layer are successively formed by sputtering. Further a transparent upper electrode layer 4 comprising ITO is formed by sputtering. A bisphenol F-epoxy rein (liquid main agent) and an oil-soluble dye are mixed to prepare an adhesive, to which a polyamine hardening agent and a spacer 8 comprising polyethylene beads are added, mixed, and deaerated. The obtd. adhesive is applied on the EC element structure, on which a transparent sealing plate 6 is laminated. Thus, the adhesive is colored.;COPYRIGHT: (C)1995,JPO