PURPOSE: To prevent the consumption of water and the generation of oxygen in a display body contg. the diphthalocyanine complex of a rare earth element as an electrochromic material and to increase the responding speed of the display body by forming a reversibly and electrolytically oxidizable layer.
CONSTITUTION: The titled display body is composed of an electrode layer A, a layer B of the diphthalocyanine complex of a rare earth element, an ionic conductive layer C, a reversibly and electrolytically oxidizable layer D and an electrode layer E. The layers A, E are made of SnO2, In2O3, Au, Ag, Al, electrically conductive resin or the like, and a transparent electrode is used as at least one of the layers. The layer C is made of Ta2O5 or the like contg. a small amount of water, and the layer D is made of Ir(OH)3, Ni(OH)2 or the like. By combining the oxidizable thin film as the layer D with other layers, the resulting display element has remarkably improved properties as compared to a conventional display element of this kind. For example, no water is consumed, no oxygen is generated, and the responding speed is increased.
KOUMIZU TOSHIKATSU
NIWA TATSUO
| JPS564679A | 1981-01-19 | |||
| JPS565882A | 1981-01-21 |