Shift register unit, drive method thereof, gate drive circuit and display device

Abstract

The invention provides a shift register unit, a drive method thereof, a gate drive circuit and a display device, relates to the technical field of display, and can adjust a pulse width of each grade of output end signals of a GOA circuit. The shift register unit comprises an input module, a first pull-up control module, a second pull-up control module, a pull-down control module, a pull-up module, a pull-down module and an energy storage module. The input module output outputs a signal of a signal input end to a first node, and the energy storage module stores a voltage of the first node or provides a stored voltage to the first node. The first pull-up control module outputs voltages of first voltage ends to a pull-up control mode under the control of the first node, first clock signal ends and a second clock signal end; the second pull-up control module outputs a voltage of a second voltage end to the pull-up control mode under the control of the first node; and the pull-down control module outputs the voltage of the first node to a pull-down control node under the control of a second clock signal end.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a shift register unit, a driving method thereof, a gate driving circuit, and a display device. Background technique [0002] TFT-LCD (ThinFilmTransistorLiquidCrystalDisplay, Thin Film Transistor-Liquid Crystal Display) and OLED (ActiveMatrixDrivingOLED, Active Matrix Driving Organic Light Emitting Diode) display devices are becoming more and more popular because of their small size, low power consumption, no radiation and relatively low production costs. It is increasingly used in the field of high-performance display. [0003] The above-mentioned display device is generally provided with a GOA (GateDriveronArray, array substrate row driver) circuit, and the output end of each stage of the GOA circuit is connected to a row of gate lines, and is used to output a gate scanning signal to the gate lines to realize the control of the gate lines. line-by-line scan. However, ...

AI Technical Summary

Problems solved by technology

However, in the prior art, the pulse width of the output signal of the GOA circuit is a fixed value, so that the user cannot adjust the pulse width of the above signal according to the needs

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