| 摘要 |
PURPOSE:To obtain an electronic device of uniform film thickness, suitable for display device for letters and graphics, by forming on the surface of plate- shaped electrode an insulation coating layer with the pattern exposed followed by forming a conductive polymer layer on the exposed part. CONSTITUTION:A metallic electrode 4 is deposited on a glass base 3, an insulation coating layer 5 being formed thereon through lamination using oily paint with the pattern 6 exposed. An organic compound (e.g. aniline) to be formed into a conductive polymer is made into an acidic aqueous solution containing hydrochloric acid. The above laminate is immersed in this solution. conductive polymer layer 2 being formed on the pattern 6 by applying a voltage of, e.g., IV with the electrode 4 as anode and a platinum plate immersed s cathode followed by rinsing with a solvent (e.g. hexane) capable of dissolving and removing the insulation coating layer 6, thus obtaining the objective display device.
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