Patent ID: 8659587
Filing Date: 2014-02-25
Classification: G02B,G09G

Abstract:
1. An electrowetting system including a display device having a plurality of electrowetting elements, including a first electrowetting element and a second electrowetting element, each being configurable in a plurality of different display states; and a display controller for selective electrical addressing of the plurality of electrowetting elements in order to switch the plurality of electrowetting elements between different display states, wherein the display controller is arranged: to address the first electrowetting element twice subsequently, separated by a first addressing interval, wherein said addressing at the end of the first addressing interval is arranged to change the display state of the first electrowetting element; and to address the second electrowetting element twice subsequently, separated by a second addressing interval, the second addressing interval being longer than the first addressing interval, wherein said addressing at the end of the second addressing interval is arranged to reset the display state of the second electrowetting element having deteriorated due to backflow whilst maintaining a display state of the second electrowetting element as perceived by a viewer, the display state of the second electrowetting element remaining unchanged during said changing of the display state of the first electrowetting element.