Patent ID: 8902151
Filing Date: 2014-12-02
Classification: G02F,G09G

Abstract:
1. An electrochromic display device comprising: a display substrate; a counter substrate facing the display substrate; a set of counter electrodes arranged on the counter substrate; an electrolyte layer arranged between the display substrate and the set of the counter electrodes; three or more display electrodes, the display electrodes including a first, a second and a third display electrode, separately arranged from one another between the display substrate and the set of the counter electrodes; three or more electrochromic layers configured to develop or reduce a corresponding color by redox reactions, the electrochromic layers being formed on the respective display electrodes arranged such that the electrochromic layers face the set of the counter electrodes; a voltage applying unit configured to select at least one of the display electrodes to connect the selected one of the display electrodes and the counter electrodes to apply a voltage between the connected display electrode and counter electrodes; a disconnecting unit configured to disconnect the unselected display electrodes from the counter electrodes; and an interelectrode connecting unit including plural display electrode switching parts corresponding to the respective display electrodes, the interelectrode connecting unit being configured to select the plural display electrode switching parts, one display electrode switching part at a time, to connect one corresponding display electrode at a time, amongst the display electrodes, to the voltage applying unit, wherein the first, second and third display electrodes are configured whereby an interelectrode resistance between any two of the first display electrode, the second display electrode and the third display electrode is higher than the sheet resistance of at least one of the first display electrode, the second display electrode and the third display electrode.