Pixel drive circuit, display panel, and display device

A display panel, comprising:

• a plurality of pixels, each pixel comprising a plurality of sub-pixel elements;
• and
• a pixel drive circuit, comprising:
• a drive-compensation circuitry, comprising:
• a drive transistor, an input end of the drive transistor being coupled to a drive-voltage terminal;
• and
• a storage capacitor, one end of the storage capacitor being coupled to a control end of the drive transistor, another end of the storage capacitor and an output end of the drive transistor being coupled in common to a corresponding sub-pixel element of the plurality of pixels;
• and
• a voltage-stabilization transistor, comprising:
• an input end, an output end, a first control end and a second control end, wherein the input end of the voltage-stabilization transistor is coupled to a set-voltage terminal, the output end of the voltage-stabilization transistor is coupled to the control end the drive transistor, the first control end of the voltage-stabilization transistor is coupled to a first gate-control-signal line, and is in cooperation with an active layer of the voltage-stabilization transistor to form a first voltage-stabilization capacitor, and the second control end of the voltage-stabilization transistor is coupled to a DC signal terminal, and is in cooperation with the active layer of the voltage-stabilization transistor to form a second voltage-stabilization capacitor.

A display device, comprising:

• a display panel, comprising:
• a plurality of pixels, each pixel comprising a plurality of sub-pixel elements;
• and
• a pixel drive circuit, comprising:
• a drive-compensation circuitry, comprising:
• a drive transistor, an input end of the drive transistor being coupled to a drive-voltage terminal;
• and
• a storage capacitor, one end of the storage capacitor being coupled to a control end of the drive transistor, another end of the storage capacitor and an output end of the drive transistor being coupled in common to a corresponding sub-pixel element of the plurality of pixels;
• and
• a voltage-stabilization transistor, comprising:
• an input end, an output end, a first control end and a second control end, wherein the input end of the voltage-stabilization transistor is coupled to a set-voltage terminal, the output end of the voltage-stabilization transistor is coupled to the control end the drive transistor, the first control end of the voltage-stabilization transistor is coupled to a first gate-control-signal line, and is in cooperation with an active layer of the voltage-stabilization transistor to form a first voltage-stabilization capacitor, and the second control end of the voltage-stabilization transistor is coupled to a DC signal terminal, and is in cooperation with the active layer of the voltage-stabilization transistor to form a second voltage-stabilization capacitor.