Patent ID: 9104258
Filing Date: 2015-08-11
Classification: G02F,G06F

Abstract:
1. A display comprising: a plurality of cells, each cell comprising at least two electrodes, one or more stimulus regions, each stimulus region including one or more cells of the plurality of cells, and each cell coupled to receive stimulus signals during a touch sensing mode of operation and coupled to receive display data signals during a display mode of operation; one or more sensor regions, each sensor region including one or more cells of the plurality of cells, and each cell coupled to charge sensor circuitry during the touch sensing mode of operation and coupled to receive display data signals during the display mode of operation; one or more guard regions each guard region including one or more cells of the plurality of cells, and each cell coupled to ground or a predetermined voltage during the touch sensing mode of operation and coupled to receive display data signals during the display mode of operation; a control device for: creating a plurality of different voltage differentials between the at least two electrodes of the plurality of cells in order to cause an image to appear at the display during the display mode of operation; stimulating one or more of the stimulus regions by applying the stimulus signals during the touch sensing mode of operation, and sensing a plurality of mutual capacitances between the one or more stimulated stimulus regions and one or more sensor regions adjacent the one or more stimulated stimulus regions.