| 摘要 |
PURPOSE:To enable multicolor display or transmission type display by interposing a thin film stable in a colored state and capable of oxidation and reduction reaction and decolored by reduction, and an electrolytic soln. serviceable as a ion supply source between a pair of electrodes. CONSTITUTION:A reduction-decolorable thin film 3 stable in a colored state and capable of oxidation reduction reaction and decolored in a state reduced by injection of cations and electrons, and an electrolytic soln. 5 serviceable as an ion supply source are interposed between a pair of electrodes 2a, 2b. The film 3 is made of IrO1.5+y (y is 0.05-0.5) colorable by an excess of oxygen. Glass bases 1a, 1b are arranged on the outsides of the electrodes 2a, 2b, and the soln. 5 is held with spacers 4. When voltage is applied to both electrodes 2a, 2b of such an ECD element, and H<+> intrude from the soln. 5 into IrO1.5+y, electrons are fed from the electrode 2a to increase trivalent Ir and erase color. As a result, an ECD element capable of multicolor display or transmission type display can be obtained by making the display region transparent. |
