| abstract |
The invention provides an electrochromic display unit with high-quality display. The display unit comprises a transparent electrode ( 1 ), a display layer ( 2 ) which is formed on the transparent electrode ( 1 ) and which changes a color according to the amount of accumulated electrical charges, and an ion conductive layer ( 3 ) formed on the display layer ( 2 ). A plurality of picture electrodes ( 4 ) are formed on the ion conductive layer ( 3 ) on the side opposite to the display layer ( 2 ). The picture electrodes ( 4 ) are driven independently by, for example, a corresponding thin film transistors ( 6 ). In driving, by applying a drive current having given amount of electrical charges and then applying a certain amount of an inverted current, a certain amount of coloration is deducted, and extra coloration of the display layer ( 2 ) is eliminated. |