Patent ID: 8749496
Filing Date: 2014-06-10
Classification: G02F,G06F

Abstract:
1. A touch screen having a touch sensor panel and a display device, the touch screen configured to perform both a display and a touch sensing functionality comprising: a plurality of pixels, each pixel including a storage capacitor comprising a first electrode and a second electrode; one or more opaque display elements used to perform the display functionality of the touch screen; and a plurality of common lines made from a non-transparent conductor, connected to the first electrode of one or more of the plurality of pixels and positioned at a different layer in the touch screen than the opaque display elements such that the opaque display elements and the common lines substantially overlap one another ; wherein the opaque display elements contribute to an aperture ratio of the display device and the plurality of common lines substantially maintain the aperture ratio of the display device; and wherein the first electrodes connected to the common lines are used for both the display and touch sensing functionalities of the touch screen.