Patent ID: 8743087
Filing Date: 2014-06-03
Classification: G02F,G06F,G09G

Abstract:
1. A touch screen including a display region having display pixels and a non-display border region, the touch screen comprising: a plurality of first common voltage lines disposed in rows including at least one row having a plurality of first portions that are electrically separate in the at least one row in the display region; a plurality of second common voltage lines disposed in columns including at least one column having a plurality of second portions that are electrically separate in the at least one column in the display region; a plurality of first and second regions, each region including a plurality of display pixels each having a capacitive element, wherein in each region, the capacitive elements are electrically connected together via one or more portions of each of the first and second common voltage lines, and the plurality of first regions are electrically separated from the plurality of second regions in the display region in a touch sensing mode of operation; wherein capacitive elements within each region are configured to provide a display function in a display mode of operation of the touch screen and to provide capacitive coupling between at least one region of the plurality of first regions serving as a drive region, and one region of the plurality of second regions serving as a sense region, in the touch sensing mode of operation.