IR drop compensation for large OLED display panels

Tangible, non-transitory, computer-readable media, comprising computer-executable instructions that, when executed, cause one or more processors to:

• determine, based on first image frame data associated with a present frame displayed on an electronic display, a first average pixel luminance (APL) value for a subline of display pixels in a zone of the electronic display;
• determine, based on second image frame data associated with a subsequent frame to be displayed on the electronic display, a second APL value for the subline of display pixels in the zone of the electronic display;
• generate, based on a delta between the first APL value and the second APL value, a first delta subline APL value;
• determine, based on the first image frame data associated with the present frame, a third APL value for an additional subline of display pixels in the zone of the electronic display;
• determine, based on the second image frame data associated with the subsequent frame, a fourth APL value for the additional subline of display pixels in the zone of the electronic display based on the second image frame data associated with the subsequent frame;
• generate, based on an additional delta between the third APL value and the fourth APL value, a second delta subline APL value;
• accumulate the first delta subline APL value and the second delta subline APL value to generate a delta zone APL value;
• and
• determine, based on the delta zone APL value, a current-resistance (IR) drop associated with the zone.

An electronic device, comprising:

• an electronic display comprising a plurality of pixels configured to emit light based on processed image data;
• and
• processing circuitry configured to:
• receive input image data;
• generate a plurality of current-resistance voltage (IR) drop grid maps based on the input image data, each IR drop grid map corresponding to an IR drop of a particular zone of a plurality of zones and an estimated IR drop impact of the particular zone across the plurality of zones based on a delta average pixel luminance (APL) value for the particular zone, the delta APL value for particular zone comprising a difference between a first APL for the particular zone associated with a first frame of the input image data and between a second APL associated for the particular zone associated with a second frame of the input image data;
• determine IR drop across the electronic display based on the plurality of IR drop grid maps;
• determine an IR drop compensation based on the IR drop across the electronic display;
• and
• generate, based on applying the IR drop compensation to the input image data, the processed image data.