Pixel circuit, control method thereof and display panel

Abstract

The embodiment of the invention discloses a pixel circuit, a control method thereof and a display panel. The pixel circuit comprises a data writing module used for writing data voltage into the control end of a driving module; the threshold compensation module is connected between the control end and the second end of the driving module, and the threshold compensation module comprises a double-gate transistor and is used for compensating the threshold voltage of the driving module; and the electric leakage suppression module is connected between the double-gate node of the double-gate transistor and the initialization signal line, and is used for writing the voltage on the initialization signal line into the double-gate node after conduction, and initializing the control end of the drivingmodule and the storage module through the threshold compensation module. According to the technical scheme of the embodiment, the voltage on the initialization signal line is written into the double-gate node, so that the electric leakage of the double-gate transistor is inhibited, the electric leakage of the data voltage at the control ends of the storage module and the driving module through the threshold compensation module is avoided, and the low-frequency display effect of the display panel is ensured.

Description

technical field [0001] The embodiments of the present invention relate to the field of display technology, and in particular to a pixel circuit, a control method thereof, and a display panel. Background technique [0002] In the continuous development of display technology, the refresh frequency range of the display panel is one of the important factors restricting the application range of the display panel. A higher refresh rate can make the animation display effect of the display panel more smooth, which is especially suitable for users to watch movies or play games, while a lower refresh rate is more conducive to saving the power consumption of the display panel during the off-screen display, thereby extending the display device. standby time. [0003] At present, in the organic light-emitting diode (Organic Light-Emitting Diode, OLED) pixel circuit of the display panel, the transistor connected to the gate of the driving transistor and the storage capacitor is prone to ...

AI Technical Summary

Problems solved by technology

[0003] At present, in the organic light-emitting diode (Organic Light-Emitting Diode, OLED) pixel circuit of the display panel, the transistor connected to the gate of the driving transistor and the storage capacitor is prone to leakage, which makes it difficult for the display panel to adapt to a lower refresh rate, that is, The display panel often has a poor display effect when it is refreshed at a low frequency

Images