Driving circuit, driving method thereof and display device

Abstract

The application provides a driving circuit, a driving method thereof and a display device. A first switch connected with a grid electrode of a driving transistor is enabled to be in a first state in aprevious frame and in a second state in a current frame; a second switch connected in series with the first switch is in a second state in the previous frame and is in a first state in the current frame, wherein the first state is one of a conduction and cut-off switching state and a continuous conduction state and the second state is the other one of the conduction and cut-off switching state and the continuous conduction state; therefore, the bias stress accumulated by the first switch and the second switch in the previous frame is opposite to the bias stress accumulated by the first switchand the second switch in the current frame, threshold voltage drifting of the first switch and the second switch is avoided, the stability of the first switch and the second switch is improved, and aproblem of low-frequency display failure caused by gate leakage of the driving transistor due to poor stability is solved. And the first switch and the second switch are alternately in a conduction and cut-off switching state to avoid crosstalk of signals written into the gate of the driving transistor.

Description

technical field [0001] The present application relates to the field of display technology, and in particular to a driving circuit, a driving method thereof, and a display device. Background technique [0002] With the development of display technology, users have higher and higher requirements for display. The display requirements can not only meet the high-frequency dynamic picture display with smoother picture quality, but also meet the low power consumption requirements of ordinary displays, and respond to high-frequency display To meet the needs of ordinary display, dynamic frame rate technology came into being. For a display panel that satisfies ultra-low frequency (frequency: 1Hz-5Hz) and ultra-high frequency (frequency: 120Hz-360Hz) at the same time, the pixel circuit in the display area needs to have the characteristics of strong charging ability and strong picture maintenance ability. Among them, strong charging ability It means that the charging time of each row o...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present application is to provide a driving circuit, its driving method, and a display device, so as to solve the problem that when the metal oxide transistor is in the off state, it is subjected to negative bias stress, so that the negative drift of the threshold voltage causes the gate leakage of the driving transistor to cause low frequency show invalid problem

Images