A gate drive circuit, its drive method, display panel and display device

Abstract

The invention discloses a gate drive circuit, a drive method of the gate drive circuit, a display panel and a display device. The gate drive circuit comprises a reset control module and a drive module. When reset signals are triggered, the reset control module keeps the reset signals for at least one clock period, locks the reset signals in the at least one clock period to generate a plurality of reset signals in the at least one clock period and outputs the reset signals to corresponding first input ends of the drive module through output ends; after the reset signals are recovered, the reset signals inputted to the first input end of the drive module are sequentially changed into low-level signal, the drive module sequentially outputs the low-level signals to corresponding gate lines under the control of a clock signal end and an output control end, and accordingly charges on the gate lines can be released sequentially through low-level signal lines to avoid the problem of high peak current generated on the low-level signal lines due to the fact that the low-level signals are inputted into the plurality of gate lines of the display panel at the same time to realize charge release.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gate driving circuit, a driving method thereof, a display panel and a display device. Background technique [0002] At present, in the existing liquid crystal display devices, in order to avoid the afterimage after shutdown, most of them will add a reset function to the gate drive circuit that drives the display panel. The reset signal is triggered when the power signal of the drive circuit drops to a certain threshold. When the reset signal is triggered, all the gate lines on the display panel are turned on, so that the charge stored in each pixel on the display panel is released, thereby avoiding afterimage after shutdown. [0003] However, when the liquid crystal display product is turned off, the power signal may jitter for many times before it is finally turned off. In this way, the power signal recovers after a short drop, and the reset signal is triggered and th...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a gate drive circuit, its drive method, a display panel, and a display device, which are used to solve the problem in the prior art that a large potential difference is generated instantaneously on the gate lines on the display panel when the reset signal is triggered. question

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