Shift register and drive method thereof

Abstract

The invention provides a shift register and a drive method thereof. The shift register comprises first to fifth transistors, wherein the grid electrode of the first transistor is connected with an output end; the drain electrode of the first transistor is connected with a first level signal end; the source electrode of the first transistor is connected with the drain electrode of the second transistor and the grid electrode of the fourth transistor; the grid electrode of the second transistor is connected with a first clock signal end; the source electrode of the second transistor is connected with a second level signal end; the grid electrode of the third transistor is connected with the first clock signal end; the source electrode of the third transistor is connected with an input end; the drain electrode of the third transistor is connected with the grid electrode of the fifth transistor; the drain electrode of the fourth transistor is connected with the first level signal end; the source electrode of the fourth transistor is connected with the output end; a first capacitor is connected with the grid electrode and the drain electrode of the fourth transistor; the source electrode of the fifth transistor is connected with a second clock signal end; the drain electrode of the fifth transistor is connected with the output end; a second capacitor is connected with the grid electrode and the drain electrode of the fifth transistor. When the output end needs to be kept, stable first level signals are always obtained from the first level signal end, so that the problem of distortion of output signals is prevented.

Description

technical field [0001] The invention relates to a gate driving device, in particular to a shift register in a liquid crystal display driving circuit and a driving method thereof. Background technique [0002] In today's era of rapid technological development, liquid crystal displays have been widely used in electronic display products, such as televisions, computers, mobile phones and personal digital assistants. The liquid crystal display includes a source driver (Source Driver), a gate driver (Gate Driver) and a liquid crystal display panel. The liquid crystal display panel has a pixel array, and the gate driver is used to sequentially turn on corresponding pixel rows in the pixel array, so as to transmit the pixel data output by the data driver to the pixels, and then display the image to be displayed. [0003] Current technologies mostly use shift registers (Shift Registers) to implement gate drivers that can sequentially turn on corresponding pixel rows in the pixel ar...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a shift register and its driving method to solve the problem of serious distortion of the output signal of the shift register in the prior art

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