Source driver for driving LED panel, driving system and display system

The invention provides a source driver, a driving system and a display system for driving an LED panel. The driving system comprises a plurality of source drivers used for providing driving currents for channels of different parts on the LED panel respectively, each source driver comprises a plurality of driving circuits which correspond to the channels on the LED panel one to one and are connected to the same current control line, each driving circuit is used for providing the driving currents for the corresponding channels, and the driving circuits are connected to the same current control line. Wherein the provided driving current is associated with a voltage on a current control line to which the driving circuit is connected, and when one or more driving circuits are switched between a non-driving state and a driving state, the driving current which is being provided by the driving circuit which is in a driving state among the plurality of source drivers is compensated. 提供了用于驱动LED面板的源极驱动器、驱动系统和显示系统。驱动系统包括