Shift register unit, driving method, gate driving circuit and display device

Abstract

The invention provides a shift register unit, a driving method, a gate driving circuit and a display device. The shift register unit includes a first pull-up node control circuit, a second pull-up node control circuit, a pull-down node control circuit, an output pull-up circuit and an output pull-down circuit; the first pull-up node control circuit controls the The first pull-up node is connected to the second voltage terminal, and under the control of the reset signal and / or the voltage signal of the pull-down node, the first pull-up node is controlled to be connected to the first voltage terminal; the second pull-up node control circuit is input signal Under the control of the control, the second pull-up node is controlled to be connected to the input terminal, and under the control of the reset signal, the second pull-up node is controlled to be connected to the first voltage terminal; the pull-down node control circuit is respectively connected to the pull-down node, the second The pull-up node is connected to the second voltage terminal and the third voltage terminal. The invention solves the problem of wrong output of the grid driving signal.

Description

Technical field [0001] The present invention relates to the field of display driving technology, in particular to a shift register unit, a driving method, a gate driving circuit and a display device. Background technique [0002] When the In cell (in-cell) touch display device is working, the touch time period lasts longer (on the order of milliseconds). The first row of GOA (Gate On Array) after each touch time period is set in the array The potential of the pull-up node PU in the (gate drive on the substrate) unit will leak during the touch time period, so that the voltage of the pull-up node PU will decrease, which will lead to the gate drive of the row of GOA units The voltage output by the signal output terminal drops, and even the corresponding row gate line cannot be turned on, which affects the pixel charging. Summary of the invention [0003] The main purpose of the present invention is to provide a shift register unit, a driving method, a gate driving circuit, and a dis...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a shift register unit, a driving method, a gate drive circuit and a display device, so as to solve the pull-up node in the shift register unit included in the gate drive circuit in the existing touch display device During the touch time period, the potential of the voltage decreases due to leakage, which leads to the problem of incorrect output of the gate drive signal

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