constructing an IR Drop model of the display panel based on a distribution of equivalent resistances between adjacent pixels in the display panel;

constructing a vector matrix equation of the IR Drop according to the IR Drop model;

performing an equivalent processing on the vector matrix equation of the IR Drop to form a plurality of equivalent sub-matrices;

iteratively solving IR Drop data of each node in each equivalent sub-matrix; and

performing a voltage compensation on each pixel in the display panel according to the IR Drop data;

wherein, a conductance value g of each node in the equivalent sub-matrix satisfies a following formula:

wherein, R_TD represents an equivalent resistance of a horizontal power supply metal wire in the node, R_MD represents an equivalent resistance of a longitudinal power supply metal wire in the node, and R_EL represents an equivalent resistance of the pixel in the node.