Pre-charge control method and device for display panel, display system and driving method thereof

A pre-charge control device for a display panel, comprising:

• means for obtaining a number of data channels on the display panel to be turned on during a turn-on period of a scanning line;
• means for adjusting a target pre-charge voltage for pre-charging the data channels to be turned on based on the number of the data channels to be turned on;
• and
• means for pre-charging the data channels to be turned on based on the adjusted target pre-charge voltage before turning on the data channels to be turned on.

A driving method for a display system, wherein the display system comprises a display panel, the display panel comprises a plurality of light emitting diodes, as well as a plurality of scanning lines and a plurality of data channels connected to the light emitting diodes, the driving method comprising:

• turning on a scanning line of the plurality of scanning lines;
• pre-charging, at a pre-charge stage, data channels on the display panel to be turned on during a turn-on period of the scanning line based on a target pre-charge voltage, wherein the target pre-charge voltage is adjusted based on a number of the data channels to be turned on;
• and,
• providing, at a display stage, a corresponding driving current to the data channels to be turned on.

A display system comprising:

• a display panel comprising a plurality of light emitting diodes, as well as a plurality of scanning lines and a plurality of data channels connected to the light emitting diodes;
• at least one scanning circuit;
• at least one source driver;
• and,
• a timing controller, wherein the timing controller is configured to:
• controlling a scanning circuit of the at least one scanning circuit to turn on a scanning line of the plurality of scanning lines;
• controlling the at least one source driver to pre-charge, at a pre-charge stage, data channels on the display panel to be turned on during a turn-on period of the scanning line based on a target pre-charge voltage, wherein the target pre-charge voltage is adjusted based on a number of the data channels to be turned on;
• and,
• controlling the at least one source driver to provide, at a display stage, a corresponding driving current to the data channels to be turned on.