A display element comprising a pair of electrodes having therebetween an
electrolyte layer containing silver or a silver-containing compound, the
display element being driven by the pair of electrodes so as to
electrochemically dissolve silver or to electrochemically deposit silver,
wherein the electrolyte layer contains an antioxidant selected from the
group consisting of a phenolic antioxidant, a phosphoric acid
antioxidant, a sulfur-containing antioxidant, an amine antioxidant and a
hydroquinone derivative.