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

A shift register and gate technology, applied in the fields of driving methods, shift register units, gate driving circuits and display devices, can solve the problems of limited transistor driving capability, low noise reduction efficiency of pull-down modules, etc., and achieve fast noise reduction. , good driving ability, the effect of improving the efficiency of noise reduction

Active Publication Date: 2020-06-16
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the limited driving capability of the transistors included in the pull-down module, the noise reduction efficiency of the pull-down module is low

Method used

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

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Embodiment Construction

[0058] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0059] The transistors used in all the embodiments of the present invention can be thin film transistors or field effect transistors or other devices with the same characteristics, and the transistors used in the embodiments of the present invention are mainly switching transistors according to their functions in circuits. Since the source and drain of the switching transistor used here are symmetrical, the source and drain are interchangeable. In the embodiments of the present invention, the source is called the first pole, and the drain is called the second pole. According to the form in the accompanying drawings, it is stipulated that the middle terminal of the transistor is the gate, the signal input terminal is the source terminal...

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PUM

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Abstract

The invention discloses a shift register unit, a driving method, a grid driving circuit and a display device, belonging to the field of display technology. The shift register unit includes: an input module, an output module, a pull-down control module, a pull-down module, a first reset control module and a reset module; the input module is used to control the potential of the pull-up node; A first clock signal at a clock signal end; the pull-down control module is used to control the potential of the pull-down node; the pull-down module is used to control the potential of the pull-up node and the output terminal under the control of the pull-down node and the second power supply signal; the first reset control module It is used to control the potential of the second control node under the control of the first control node and the reset signal from the reset signal terminal; the reset module is used to control the potential of the second control node and the third power signal from the third power supply terminal. Pull up the potential of the node. The invention improves the efficiency of noise reduction at the output end.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a driving method, a gate driving circuit and a display device. Background technique [0002] When displaying an image, the display device needs to use a gate driver on array (Gate Driver on Array, GOA) to scan pixel units. The gate driver circuit (also called a shift register) includes a plurality of cascaded shift register units, each One shift register unit corresponds to one row of pixel units, and a plurality of shift register units realizes row-by-row scan driving of multiple rows of pixel units in the display device to display images. Wherein, after the pixel unit of a certain row is driven, the shift register unit corresponding to the pixel unit of the certain row is under the control of the reset signal from the reset signal terminal, and the output terminal of the shift register unit is denoised to ensure The stability of the output signal at thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G09G2310/0286G11C19/28G09G3/3677G09G2310/061G11C19/287
Inventor 廖力勍李红敏王栋唐锋景
Owner BOE TECH GRP CO LTD
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