Pixel circuit, display panel, and display apparatus

A method for driving a pixel circuit, the pixel circuit comprising:

• a driving sub-circuit, the driving sub-circuit comprising:
• a first end being connected to a first power line;
• a control end being connected to a first node;
• and
• a second end being connected to a second node;
• a compensation sub-circuit connected to the first node, the second node, a light emission control signal line, a scanning signal line, and a data signal line;
• wherein:
• the light emission control signal line is configured to receive one of a first voltage and a reference voltage;
• the scanning signal line is configured to receive one of a first control voltage and a second control voltage;
• the data signal line is configured to receive one of a data voltage and the reference voltage, and the first power line is configured to receive one of a reset voltage and a first power voltage;
• the compensation sub-circuit is configured to be under control of the reference voltage received from the light emission control signal line, the first control voltage received from the scanning signal line, and the reference voltage received from the data signal line;
• when the first power line receives the first power voltage, a threshold voltage of the driving sub-circuit is compensated;
• the pixel circuit further comprises:
• a light-emitting diode having a first end and a second end, the first end of the light-emitting diode being connected to the second node, and the second end of the light-emitting diode being connected to a second power line;
• wherein the second power line is configured to receive one of the first power voltage and a second power voltage;
• and
• wherein the light-emitting diode comprises a device capacitor having a first terminal and a second terminal respectively connected to the first end and the second end;
• the method comprising:
• in a reset stage, utilizing the scanning signal line to receive the second control voltage, utilizing the light emission control signal line to receive the first voltage, utilizing the data signal line to receive the reference voltage, and utilizing the first power line to receive the reset voltage to reset the pixel circuit;
• in a compensation phase, utilizing the first power line to receive the first power voltage, utilizing the light emission control signal line to receive the reference voltage, utilizing the scanning signal line to receive the first control voltage, and utilizing the data signal line to receive the reference voltage to write a threshold voltage of the driving sub-circuit into the compensation sub-circuit;
• and
• in a data writing phase, utilizing the first power line to receive the reset voltage, utilizing the light emission control signal line to receive the reference voltage, utilizing the scanning signal line to receive the first control voltage, and the first control voltage is equal to the first voltage, and then utilizing the data signal line to receive a data voltage of a current row.