电致变色显示(ECD)现在深受注意。日本第二精工舍公司已将世界第一种 ECD手表投入市场。与液晶显示(LCD)比较,ECD 具有下列特点:(1)显示清晰犹如印刷品,而且与视角无关。(2)有存储性能,仅在要改变显示时须加电压,故功耗低。(3)驱动电压低,只需一节1.5伏电池即可驱动。该公司 ECD 用 WO_3作为电致变色材料。 Electrochromic display (ECD) is now drawing much attention. Japan’s second Seiko company has the world’s first ECD watch on the market. Compared with the liquid crystal display (LCD), ECD has the following characteristics: (1) display clear like a print, but also has nothing to do with the perspective. (2) there is storage performance, only need to change the display voltage, so low power consumption. (3) low drive voltage, only a 1.5 volt battery can be driven. The company ECD uses WO_3 as the electrochromic material.