Shift register unit, driving method and display device

A shift register and potential technology, applied in static memory, digital memory information, instruments, etc., can solve problems such as potential drop of pull-up nodes, poor horizontal stripes, and influence on gate drive signal output
CN109461402AActive Publication Date: 2019-03-12BOE TECH GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BOE TECH GRP CO LTD
Publication Date
2019-03-12

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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.
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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...

Claims

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