| 摘要 |
PURPOSE:To obtain an electrochromic display device operable with low voltage and good in repeated use characteristics by using a hydrogen adsorbing alloy for an opposite electrode capable of governing coloring and decoloring of the display electrode which execute display by the coloring and decoloring reaction of an electrochromic substance. CONSTITUTION:A transparent electrode 2 made of an ITO film is formed on a glass base 1, and the electrochromic substance of tungsten oxide (WO3) 3 is vapor deposited on the electrode 2, and the WO3 is formed into a necessary pattern, and constitutes the display electrode together with the electrode 2. The WO3 3 is coated with a thick film of antimony oxide and a small amt. of binder to form an electrolyte 4, and a thick film of the hydrogen adsorbing alloy TiNiHx and a small amt. of binder is formed on the electrolyte 4 to prepare the opposite electrode 5, and a stainless steel plate 6 for leading a current is attached to the electrode 5, and these laminates 2, 3, 4, 5, 6 are covered with a sealing resin case 7, thus permitting the obtained electrochromic display device to be colored and decolored repeatedly by applying positive and negative voltages to the electrode 2 and the plate 6, and this device to be operated with low voltage and enhanced in repetition characteristics.
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