| 摘要 |
Provided is a pixel drive circuit, comprising: a drive transistor (DTFT), and an organic light-emitting diode (OLED), first through fourth switch tubes (T1-T4), and storage capacitor (Cs) connected to the drive transistor (DTFT). Also provided is a drive method of the pixel drive circuit, comprising: charging the storage capacitor (Cs); discharging the storage capacitor (Cs); causing there to be a voltage difference across the two terminals of the storage capacitor (Cs); changing the data voltage (Vdata), such that the same change as that of the data voltage (Vdata) happens to the voltage across the storage capacitor (Cs); driving the organic light-emitting diode (OLED) to emit light. The described drive circuit and drive method achieve threshold voltage compensation of the drive voltage of a drive transistor (DTFT), offsetting the effect of the threshold voltage on the operating current of an organic light-emitting diode (OLED). Also provided is a display device containing the described pixel drive circuit. |
