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Shifting register unit and drive method thereof, gate drive circuit and display device

A shift register, gate technology, applied in static memory, digital memory information, instruments, etc., can solve the problem of poor noise reduction performance of pull-down modules, and achieve the effect of ensuring noise reduction performance, convenient structure, and improving use flexibility

Pending Publication Date: 2018-08-17
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of poor noise reduction performance of the pull-down module of the shift register unit in the related art, the present invention provides a shift register unit and its driving method, gate driving circuit and display device

Method used

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  • Shifting register unit and drive method thereof, gate drive circuit and display device
  • Shifting register unit and drive method thereof, gate drive circuit and display device
  • Shifting register unit and drive method thereof, gate drive circuit and display device

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Embodiment Construction

[0065] 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.

[0066] 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 embodiment of the present invention, the source is referred to as the first stage, and the drain is referred to as the second stage. 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 th...

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Abstract

The present invention discloses a shifting register unit and a drive method thereof, a gate drive circuit and a display device, belonging to the display technology field. The shifting register unit comprises an input module, a pull-up module and N pull-down modules. An ith pull-down module in the N pull-down modules is connected with an ith control signal end in N control signal ends, a third power supply signal end, a pull-up node and an output end. The ith pull-down module can perform noise reduction of the pull-up node and the output end under the control of the ith control signal end, thetiming sequence of control signals output by each control signal end is regulated to perform flexible control of the N pull-down modules so as to ensure the noise reduction performance of the pull-down modules. Besides, the signal ends controlling the modules are mutually independent to allow the structure of each module to facilitate regulation so as to improve the usage flexibility of the shifting register unit.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a driving method thereof, a gate driving circuit and a display device. Background technique [0002] When the display device displays an image, it is necessary to use a shift register (ie, a gate drive circuit) to scan the pixel units. The shift register includes a plurality of cascaded shift register units, and each shift register unit corresponds to a row of pixel units. The plurality of cascaded shift register units implements row-by-row scan driving of each row of pixel units in the display device to display images. [0003] There is a shift register unit in the related art, which mainly includes an input module, an output module and a pull-down module. Among them, the input module is used to input the voltage of the output terminal of the shift register unit in the previous row to the shift register unit, and pull up the level of the pull-up node in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/3266G09G3/36
CPCG09G3/20G09G3/3266G09G3/3677G09G2310/0286G11C19/184G11C19/28G09G2300/08G09G2310/0267G09G2310/0283G09G2310/08
Inventor 吴博谭文韦东梅邓银
Owner BOE TECH GRP CO LTD
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