Set-voltage generation unit, set-voltage generation method and display device

A display device comprising:

• M rows and N columns of pixel circuits and N set-voltage generation units;
• wherein the set-voltage generation unit includes a voltage generation circuit;
• the set-voltage generation unit is configured to generate a set voltage according to a gamma main voltage such that a ratio between a variation of the set voltage and a variation of the gamma main voltage is a voltage coefficient K, and K is a positive number less than or equal to 1;
• an output terminal of an n-th set-voltage generation unit is coupled with pixel circuits in the n-th column, and is configured to provide the set voltage for the pixel circuits in the n-th column;
• wherein both M and N are integers greater than 1, n is a positive integer less than or equal to N.