Method for effectively improving refresh rate of LED display driving chip

The invention relates to the technical field of LED display driving chips, and provides a method for effectively improving the refresh rate of an LED display driving chip, which comprises the following steps: setting the value of a scattering group number register as S; setting a clock frequency division coefficient register value as Div; obtaining an input display gray scale register value Gray, and calculating an actual display gray scale register value NGray according to the input display gray scale Gray and the clock frequency division coefficient Div; calculating a high significant bit register value MSB and a low significant bit register value LSB according to the actual display gray level NGray and the scattering group number S; setting a counter register as a counter and a register value Ncounter; and according to the high significant bit register MSB, the low significant bit register LSB and the counter register Ncounter, calculating a display gray scale register value SGray of each group. According