| 摘要 |
PURPOSE:To obtain the titled element having an excellent responsibility, reliability and display quality by constituting an intermediate insulating layer with a compd. having a high moisture absorption property, thereby stably maintaining the moisture content necessary to a device. CONSTITUTION:The whole solid electrochromic element is constituted by laminating the first electrode 2 composed of a transparent electroconductive film, the first electrochromic layer 3 composed of an oxidative coloring layer, the intermediate insulating layer 4, the second electrochromic layer 5 composed of a reducible coloring layer and the second electrode 6 on a transparent substrate 1 in order. The intermediate insulating layer 4 is formed by mixing the compd. having the high moisture absorption property, such as BaO or MgO with an oxide, such as tantalum pentaoxide. Therefore, the moisture content necessary for the device is stably maintained, thereby enabling a drive of the element even in a range of a high vacuum. Therefore, the titled device having an excellent responsibility, reliability and display quality may be obtd.
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