1. A method, comprising: estimating, for a display device, an IR voltage drop effect on one pixel of a plurality of pixels supplied by a supply voltage line in the display device, wherein the estimating comprises: calculating, for the one pixel, a plurality of current values associated with currents drawn by refreshing the other pixels of the plurality of pixels supplied by the supply voltage line, wherein each of the plurality of current values corresponds to current for the one pixel during refreshing a pixel of the other pixels; and estimating the IR voltage drop effect on the one pixel based on the plurality of current values; and generating a brightness signal for the one pixel of the plurality of pixels based at least in part on the estimated IR voltage drop effect, wherein the brightness signal compensates for the IR voltage drop effect on the one pixel of the plurality of pixels.