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Shift register unit and driving method thereof and gate driving circuit

A shift register and gate drive technology, applied in static memory, digital memory information, instruments, etc., can solve the problems of loss of noise reduction ability and increased leakage, so as to ensure noise reduction ability, reduce leakage, and improve anti-leakage. effect of ability

Active Publication Date: 2018-08-10
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a shift register unit, its driving method, and a gate drive circuit, which are used to solve the problems that the existing shift register unit is prone to increased leakage and loss of noise reduction ability during the holding period

Method used

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  • Shift register unit and driving method thereof and gate driving circuit
  • Shift register unit and driving method thereof and gate driving circuit
  • Shift register unit and driving method thereof and gate driving circuit

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Embodiment Construction

[0068] In order to further illustrate the shift register unit, its driving method, and the gate driving circuit provided by the embodiments of the present invention, a detailed description will be given below in conjunction with the accompanying drawings.

[0069] As described in the background technology, a working cycle of a traditional shift register unit sequentially includes: an input period, an output period, a reset period and a hold period, wherein the following functions are mainly realized in the input period, the output period and the reset period: first, through the shift The gate drive signal output terminal in the register unit outputs the gate drive signal to the corresponding gate line on the array substrate, and then resets the gate drive signal to the gate off voltage; during the hold period, the shift register is controlled by the clock signal Part of the thin film transistors in the unit work, so that the potential of the output terminal of the gate drive si...

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Abstract

The invention discloses a shift register unit and a driving method thereof and a gate driving circuit, which relate to the technical field of display and aim at solving the problems that the existingshift register unit is likely to meet electric leakage increase and lose noise reduction capability in a retaining time period. The shift register unit comprises a pull-up node control module, a pull-down node control module, a capacitor module, an output module and a noise reduction adjustment module, wherein the noise reduction adjustment module is connected with a pull-down node and a first level input terminal respectively; and the noise reduction adjustment module is used for controlling to reduce the rising rate of potential of the pull-down node in a noise reduction time period in the retaining time period and controlling to reduce the falling rate of potential of the pull-down node in a non-noise reduction time period in the retaining time period. The shift register unit provided in the invention is used for providing gate driving signals.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a driving method thereof, and a gate driving circuit. Background technique [0002] With the continuous development of display technology, more and more display devices adopt the array substrate row drive (English: Gate On Array, hereinafter referred to as GOA) technology, this GOA technology is to directly integrate the gate drive circuit on the array substrate. In terms of area, while reducing the frame width of the array substrate, the production cost and the production process are also reduced. The gate drive circuit integrated on the array substrate using GOA technology includes several shift register units, each shift register unit corresponds to a gate line on the array substrate, and realizes the control of the gate line by outputting a gate drive signal. drive. [0003] Each working cycle of a traditional shift register unit includes four period...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G09G2310/0286G11C19/28G09G3/3677G09G2310/0267G11C7/02G09G2300/0408
Inventor 许志财孙佳肖利军
Owner BOE TECH GRP CO LTD
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