| 摘要 |
PURPOSE:To obtain a display element which is driven at low voltage, responds at high speed and has superior durability by forming an electrochromic (EC) material layer with a transition metallic oxide and an ionic conductive material layer contacting with the EC material layer with an org. polymer and an inorg. ionic conductive material. CONSTITUTION:A transparent electrode 2 is formed on a transparent glass substrate 1, and an EC material layer 3 of MoO3 or WO3 is formed on the electrode 2 by vacuum deposition or other method. A uniform mixture of a soln. of an org. polymer such as polymethyl methacrylate with an inorg. ionic conductive material such as LiClO4, LiF or NaF is applied to the layer 3 and dried to form an ionic conductive material layer 4. A transparent electrode 5 is formed on the layer 4 by sputtering, and the void is sealed with epoxy resin to obtain an entirely solid EC display element. By adding a white pigment such as TiO2 or Al2O3 to the layer 4, the background may be prevented from being seen through the layer 4 to improve the decorative effect. The generation of H2 by a reaction between the electrodes is prevented in the element, and the element causes no liq. leak and has superior durability. |
