ELECTROCHROMIC DISPLAY ELEMENT AND FULL-COLOR ELECTROCHROMIC DISPLAY ELEMENT

摘要

This invention provides an electrochromic display element having a significantly improved memory effect, and a full-color electrochromic display element that can easily realize full colorization and has a significantly improved memory effect. The electrochromic display element and the full-color electrochromic display element are characterized by comprising an electrochromic compound represented by general formula (1) between opposed electrodes, the opposed electrodes being driven and operated so that the electrochromic compound is color developed upon oxidation and is rendered colorless upon reduction.