Shift register, driving method thereof, and gate driving circuit

A technology of a shift register and a driving method, which is applied in the field of a gate drive circuit, a shift register and a driving method thereof, and can solve problems such as abnormal output of a shift register, and achieve the goal of eliminating charge accumulation, avoiding abnormal output, and ensuring display quality Effect

Active Publication Date: 2020-12-01
HEFEI BOE OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention at least partially solves the problem that the existing bidirectional scanning shift register is prone to output abnormality, and provides a shift register capable of realizing bidirectional scanning and avoiding output abnormality, a driving method thereof, and a gate driving circuit

Method used

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

Examples

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Embodiment 1

[0074] like Figure 1 to Figure 4 As shown, this embodiment provides a shift register, which includes:

[0075] The input unit 1 is connected to the input terminal INPUT, the first signal terminal FW, and the pull-up node PU, and is used to introduce the signal of the first signal terminal FW into the pull-up node PU under the control of the input terminal INPUT;

[0076] The reset unit 2 is connected to the reset terminal RESET, the second signal terminal BW, and the pull-up node PU, and is used to introduce the signal of the second signal terminal BW into the pull-up node PU under the control of the reset terminal RESET;

[0077] The output unit 3 is connected to the output terminal OUTPUT, the first clock terminal CLK, and the pull-up node PU, and is used to introduce the signal of the first clock terminal CLK into the output terminal OUTPUT according to the level of the pull-up node PU;

[0078] The pull-down unit 4 is connected to the third signal terminal GCL, the secon...

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Abstract

The invention provides a shift register, a driving method thereof, and a gate drive circuit, belonging to the technical field of gate drive circuits, which can at least partially solve the problem that the existing bidirectional scanning shift register is prone to abnormal output. The shift register of the present invention includes: an input unit, which is used to introduce the signal of the first signal terminal into the pull-up node under the control of the input terminal; a reset unit, which is used to introduce the signal of the second signal terminal into the pull-up node under the control of the reset terminal Node; output unit, which is used to introduce the signal of the first clock terminal into the output terminal according to the level of the pull-up node; the pull-down unit, which is used to introduce the signal of the constant level terminal into the pull-up node and the output terminal according to the level of the pull-down node , and is used to introduce the signal of the constant level terminal into the pull-up node and the output terminal under the control of the third signal terminal; the pull-down control unit is used to control the level of the pull-down node according to the signal of the second clock terminal and the level of the pull-up node ; storage capacitor.

Description

technical field [0001] The invention belongs to the technical field of gate driving circuits, and in particular relates to a shift register, a driving method thereof, and a gate driving circuit. Background technique [0002] To simplify the structure of the display panel, the gate lines may be driven using a gate driving circuit (GOA) formed on the array substrate. The gate drive circuit includes multiple cascaded shift registers, each shift register drives a gate line, and when a shift register outputs a conduction signal, it can also trigger the work of other shift registers, so only a few simple The control signal can realize the driving of all gate lines. [0003] In many cases, it is hoped that the display panel can realize bi-directional scanning, that is, it is required that each gate line can be turned on from top to bottom, and can also be turned on from bottom to top. like Figure 5 As shown, in order to realize bidirectional scanning, it is necessary to set the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G09G2310/0264G09G2310/0286G11C19/28G09G3/2092G09G3/3677G11C19/184G09G2310/0243G09G2310/0289G11C19/287
Inventor 冯思林
Owner HEFEI BOE OPTOELECTRONICS TECH
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