A pixel circuit with a time-shared signal line, a pixel compensation method, and a display apparatus

A method for driving a display panel with a M-row active pixel matrix in one cycle of displaying one frame of image, the method comprising:

• scanning a control signal to one row after another of M rows of pixels in the M-row active pixel matrix to set a reference voltage to a gate voltage of a driving transistor in a pixel circuit associated with a pixel in an m-th row, 1≤m≤M;
• using a signal line connected to the pixel circuit as a sensing line if the m-th row is selected to be a sensing row in a current cycle;
• reading a sensing signal from the sensing line for determining a compensated data signal in a sensing period in an extended scan time in the current cycle;
• making the signal line as a data line in a data-input and compensation period following the sensing period;
• loading the compensated data signal via the data line in the data-input and compensation period to set a source voltage of the driving transistor in the pixel associated with the pixel in the sensing row;
• and
• loading a data signal via the signal line served as the data line to set a source voltage of the driving transistor in the pixel circuit if the m-th row belongs to other M−1 numbers of rows other than the sensing row in a data-inputting period in a normal scan time without a sensing period in the current cycle, the data signal being compensated based on another sensing signal read in one of earlier M−1 numbers of cycles.