Patent ID: 8325143

Claim:
A touch sensitive display comprising: an active matrix display element having a viewer proximal side and a viewer distal side and comprising a pixel array with rows and columns of pixels; and a touch sensitive element disposed on the viewer distal side of the active matrix display element, wherein the touch sensitive element comprises: a first conductive layer comprising a first plurality of conductors; a second conductive layer comprising a second plurality of conductors; and a pressure sensitive layer sandwiched between the first conductive layer and the second conductive layer and operable to modify an electrical conductivity between a first conductor of the first plurality of conductors and a second conductor of the second plurality of conductors in response to a pressure point resulting from an applied pressure, characterized in that: the first plurality of conductors are row conductors of the touch sensitive element and the second plurality of conductors are column conductors of the touch sensitive element, each row of pixels shares a respective row buffer amplifier with a touch sensitive element row conductor, and each column of pixels shares a respective column buffer amplifier with a touch sensitive element column conductor; and wherein the respective row buffer amplifier and column buffer amplifier synchronously operate under a time-division multiplexed control to carry out mutually exclusive functions of touch sensing and pixel value setting.