| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to maintain a color development state at a predetermined color development level and easily perform decoloration.SOLUTION: An electrochromic device 100 comprises: a display substrate 10, display electrode 11, electrochromic layer 12, opposing substrate 14, opposing electrode 13, electrolyte 15, spacer 16, and driving means 17. The electrochromic device causes the driving means 17 to apply a predetermined voltage to between the display electrode 11 and opposing electrode 13 to perform color development drive, measures an open-circuit voltage after the lapse of a predetermined period, and performs decoloration drive; performs the color development drive again to cause the electrochromic layer 12 to develop color at a predetermined color development state, and subsequently applies the measured open-circuit voltage for a predetermined period to perform holding drive; and subsequently performs the decoloration drive.SELECTED DRAWING: Figure 2 |
