Patent ID: 9104284
Filing Date: 2015-08-11
Classification: G06F

Abstract:
1. An apparatus comprising: a display panel comprising a substrate and a shared layer of electrodes for touch functionality and display functionality; a plurality of storage elements to store an excitation signal pattern to control how the shared layer of electrodes is driven by excitation signals for multi-phase capacitance scanning of the display panel; and an integrated circuit (IC) positioned on the substrate and coupled to the shared layer of electrodes, wherein the IC to drive the shared layer of electrodes with display signals in a first mode and to drive the shared layer of electrodes with a plurality of excitation signals in a second mode according to the pattern of excitations signals stored in the plurality of storage elements, wherein the excitation signal pattern comprises a data structure of values for the plurality of excitation signals, and wherein each of the values is at least one of a first value that indicates an in-phase excitation signal to be applied to a corresponding electrode of the shared layer of electrodes, a second value that indicates an out-of-phase excitation signal to be applied to the corresponding electrode or a third value that indicates a high-impedance output to remove the IC's influence on the corresponding electrode, and wherein the data structure comprises at least one of the third value.