Pixel driving circuit, driving control method, and display panel

A pixel driving circuit for driving a light-emitting element, comprising a driving module and a grayscale adjustment module,

• wherein the driving module is coupled to a gate voltage end, a first power source end, the light-emitting element and the grayscale adjustment module, and configured to generate a first driving current corresponding to a first grayscale range under the control of a potential at the gate voltage end and a first power source voltage at the first power source end, and transmit the first driving current to the light-emitting element;
• and
• the grayscale adjustment module is further coupled to the first power source end, a control end of the grayscale adjustment module is coupled to a first data end, and the grayscale adjustment module is configured to adjust the driving module under the control of the first power source voltage and a first data voltage at the first data end, so that the driving module generates a second driving current corresponding to a second grayscale range under the control of the potential at the gate voltage end and the first power source voltage, and transmits the second driving current to the light-emitting element;
• wherein the pixel driving circuit further comprises a first data write-in module electrically coupled to a second data end, a first gate control end, the driving module and the grayscale adjustment module, and configured to write a second data voltage at the second data end into the driving module and the grayscale adjustment module under the control of a first gate control signal from the first gate control end.