| 摘要 |
A compensation pixel circuit and a display device. The compensation pixel circuit comprises an organic light-emitting diode (D1) and a drive transistor (M1), wherein a first end of the drive transistor (M1) is connected to an anode of the organic light-emitting diode (D1). The compensation pixel circuit also comprises a reset module, a data voltage write module, a light-emitting control module and a switch module. The reset module comprises a capacitor (C1) having a first end connected to a gate electrode of the drive transistor (M1), and is used for discharging the gate electrode of the drive transistor (M1), so that the voltage of the gate electrode drops to the size of a threshold voltage of the organic light-emitting diode (D1). The data voltage write module is used for connecting a data voltage to a second end of the drive transistor (M1) after discharging the gate electrode of the drive transistor (M1) so that the voltage of the gate electrode drops to the size of the threshold voltage of the organic light-emitting diode (D1). The light-emitting control module is used for connecting a source electrode of the drive transistor (M1) and a second end of the capacitor (C1) to a high-level operating voltage after data voltage write is completed. The switch module is used for disconnecting the drive transistor (M1) from the organic light-emitting diode (D1) when the data voltage is connected to the second end of the drive transistor (M1). The compensation pixel circuit can compensate for the threshold voltage shift and reduce the influence of signals between frames. |
