Driving method and driving device for display panel and display device

A driving device for a display panel, the display panel comprises a plurality of data line groups and a plurality of multiplexers in one-to-one correspondence with the data line groups, each of the data line groups comprises at least three data lines, and each of the multiplexers is configured to enable an input terminal of said each of the multiplexers to be successively coupled to the data lines electrically in the data line group, corresponding to said each of the multiplexers, in each line scanning period;

• the driving device comprises a data acquisition component, a voltage output component and a control component,
• the data acquisition component is configured to acquire data voltages to be output to the data lines in the data line group in a current line scanning period;
• for at least one of the data line groups, the voltage output component is configured to, in response to that the data voltages to be output to the data lines in the data line group are not completely equal to each other, successively output the data voltages to be output to the data lines to the input terminal of the multiplexer in a sequence from large to small or from small to large;
• in response to that the voltage output component outputs each of the data voltages to the input terminal of the multiplexer, the control component is configured to control the input terminal of the multiplexer to be electrically coupled to the data line to receive the data voltage.