申请人:SONY CORPORATION
公开号:EP0180204A1
公开(公告)日:1986-05-07
An electrochromic display device which comprises a pair of electrodes, at least one of which is a transparent display electrode and which are spaced from each other and an electrochromic solution placed inbetween the paired electrodes in contact therewith. The electrochromic solution is an aqueous solution comprising an N,N'-di(p-cyanophenyl)-4,4'-bipyridinium dihalide serving as an active substance, an alkali ferrocyanide as an ancillary redox material and an electrolyte. The electrolyte is a mixture of a hypophosphite ion, and a salt corresponding to the anion of the active substance and the alkali ion of the ancillary redox material. These materials have, respectively, certain ranges of molar concentrations.
一种电致变色显示装置,包括一对电极(其中至少有一个是透明显示电极),这对电极相互间隔,以及置于这对电极之间与之接触的电致变色溶液。电致变色溶液是一种水溶液,由作为活性物质的 N,N'-二(对氰苯基)-4,4'-联吡啶鎓二卤化物、作为辅助氧化还原材料的碱式铁氰化物和电解质组成。电解质是亚磷酸离子和与活性物质阴离子和辅助氧化还原材料碱离子相对应的盐的混合物。这些材料分别具有一定的摩尔浓度范围。