Display compensation module, display compensation method and display device

A display compensation module, applied to a display panel, wherein the display panel comprises a plurality of rows and a plurality of columns of sub-pixels, the display compensation module comprises a search circuit, a compensation control circuit and a compensation circuit, wherein

• the search circuit is configured to obtain, based on a display gray-scale value of an M-th row in a N-th frame of display data, a display gray-scale value of an M-th row in a (N−1)-th frame of display data and a preset compensation gray-scale search table, compensation information corresponding to the display gray-scale value of the M-th row in the N-th frame of display data and the display gray-scale value of the M-th row in the (N−1)-th frame of display data, and when the compensation information indicates that the display gray-scale values of at least part of columns of sub-pixels in the M-th row in the display panel increase from the (N−1)-th frame to the N-th frame, apply the first control signal to the compensation control circuit;
• N is an integer greater than 1, M is a positive integer;
• the compensation control circuit is electrically connected to the search circuit and is configured to:
• determine whether to perform a gray-scale compensation according to the display gray-scale value of the M-th row in the N-th frame of display data after receiving a first control signal, and send a compensation control signal to the compensation circuit when the gray-scale compensation is needed, and send a second control signal to the compensation circuit when the gray-scale compensation is not needed;
• the compensation circuit is electrically connected to the search circuit and the compensation control circuit, and is configured to:
• receive the compensation information, compensate the display gray-scale value of the M-th row in the N-th frame of display data according to a compensation display gray-scale value in the compensation information after receiving the compensation control signal, to obtain and output the compensated display gray-scale value, and control and output the display gray-scale value of the M-th row in the N-th frame of display data after receiving the second control signal.