| 摘要 |
PURPOSE:To improve appearance of a pattern by laminating an electrochromic (EC) layer on the first electrode, and bringing an Ar atm. excited by glow discharge into contact with the parts of said EC layer not to be used as said EC layer to erase the EC function. CONSTITUTION:An EC layer 3 is laminated on the first electrode 2 formed on a base plate 1, and then, an atm. of Ar excited by glow discharge, such as ion plating, is brought into contact with the parts of the EC layer 3 not to be used as said EC layer to erase the EC function and form a pattern. An insulating layer 4 is formed on the layer 3, and further, the second electrode layer 5 is formed on this layer 4. Ar ions are produced in the Ar atm. excited by such a glow discharge and attack the parts of the layer 3 to form an intended pattern. Since the EC layer itself is divided into the parts having the EC function and the parts having no EC function by this treatment, the layer 3 has no or very little level difference, and hence, an EC element good in appearance can be obtained. |
