Shift register unit, driving method and display device

Abstract

The invention provides a shift register unit, a driving method and a display device. The shift register unit comprises a pull-up energy storage circuit and a pull-up node potential maintaining circuit, wherein the pull-up energy storage circuit is connected with a pull-up node; the pull-up node potential maintaining circuit is separately connected with the pull-up node and a first voltage end andused for charging the pull-up energy storage circuit through a first voltage signal input by the first voltage end to maintain the potential of the pull-up node at an effective level when the potential of the pull-up node is at the effective level in a touch control stage. According to the shift register unit, the potential of the pull-up node can be maintained at the effective level in the touchcontrol stage, and therefore when entering a next display stage after the touch control stage is finished, the shift register unit can normally output a grid drive signal.

Description

technical field [0001] The invention relates to the technical field of display driving, in particular to a shift register unit, a driving method and a display device. Background technique [0002] Since the in-cell touch technology came out, it has gradually become the mainstream of the market, and the requirements for its touch performance are getting higher and higher. It is necessary to use a high-frequency touch drive mode to make the touch performance more excellent. However, when the embedded touch display product is working, in order to increase the touch driving frequency, a frame display time is divided into n equal parts (n is an integer greater than 1), and then the touch stage is set in the adjacent Between the two display stages, it is easy to fail to guarantee normal display and poor horizontal stripes at the segmented row. The main reasons are as follows: at the segmented position, the potential of the pull-up node in the shift register unit cannot If it is k...

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 and a display device to solve the problem that the potential of the pull-up node in the shift register unit cannot If it is kept for a long time, the potential of the pull-up node will drop due to leakage, which will affect the output of the gate drive signal of the corresponding line when entering the next display stage, and there will be a phenomenon of horizontal stripes, and the degree of defect will be aggravated under high temperature.

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