| 摘要 |
PURPOSE:To make electrochromic display material layers without using complicated operations and devices, by coating a solution of transition metal compound on electrode substrates and drying the solution. CONSTITUTION:The solution produced by dissolving the transition metal compound such as WCl6 in an alcoholic solvent is coated on transparent electroconductive layers 2, 2' provided on glass substrates 1, 1'. The solution is dried, thereby making the electrochromic layers 3 of 0.05 to 0.3 mu in thickness. The substrates 1, 1' are laminated with a spacer 4 so that the layers 3 face each other. An electrolyte 5 is filled in between the layers 3 through an electrolyte inlet port 6. A rectangular-wave voltage is applied to the electrochromic element through lead wires 7, 7' so that a color appears and disappears repeatedly. |
