A kind of shift register unit, gate driving circuit and driving method thereof

A gate drive circuit and shift register technology, applied in static memory, digital memory information, instruments, etc., can solve the problems of inability to guarantee pixel charging, long reset time of gate drive signal, etc., to reduce leakage and ensure charging The effect of time and stable working status

Active Publication Date: 2019-05-10
BOE TECH GRP CO LTD
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  • Summary
  • 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, a gate drive circuit and a drive method thereof, which are used to solve the problem that the pixel cannot be well charged due to the long reset time of the gate drive signal

Method used

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  • A kind of shift register unit, gate driving circuit and driving method thereof
  • A kind of shift register unit, gate driving circuit and driving method thereof
  • A kind of shift register unit, gate driving circuit and driving method thereof

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Embodiment Construction

[0044] In order to further illustrate the shift register unit, the gate driving circuit and the driving method thereof provided by the embodiments of the present invention, a detailed description will be given below in conjunction with the accompanying drawings.

[0045] see figure 1 and Figure 4, a working cycle of the shift register unit provided by the embodiment of the present invention includes: input phase t1, output phase t2, reset phase t3 and holding phase t4, the shift register unit includes: input module 1, output module 2, first reset Module 3 and the first pull-down control module 4. The input module 1 is in the input stage t1, used to pull up the voltage of the pull-up node PU under the action of the input signal Input; the output module 2 is used in the output stage t2, used to output the module 2 under the action of the clock signal CLK The output terminal of the output terminal outputs the gate drive signal Output, and further pushes up the voltage of the p...

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Abstract

Disclosed is a shift register unit, a gate driving circuit and a driving method, as well as a display apparatus. The shift register unit has a working cycle including an input phase, an output phase, a reset phase and a maintaining phase. In the reset phase, a clock signal is transmitted to an output terminal to pull a voltage of the output terminal down to a reference voltage, and the pulled-down voltage of the output terminal is subsequently changed from the reference voltage to a gate-off voltage. In the maintaining phase, the voltage of the output terminal is maintained at the gate-off voltage. The reference voltage is smaller than the gate-off voltage.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a gate drive circuit and a drive method thereof. Background technique [0002] With the continuous development of display technology, more and more display devices adopt the Gate On Array (GOA) technology, which directly integrates the gate drive circuit on the non-display area of ​​the array substrate. , reducing the frame width of the array substrate to a great extent. The gate drive circuit integrated on the array substrate includes several shift register units, each shift register unit corresponds to a gate line on the array substrate, and drives the gate line by outputting a gate drive signal, And the gate driving signal will be reset to the gate off voltage after completing the driving of the gate line, so that the follow-up work can be performed normally. [0003] However, since the time allocated to each row of pixels in the display device is fix...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G09G3/3266G09G3/3677G09G2300/0408G09G2310/0267G09G2310/0286G11C19/28G11C19/287
Inventor 商广良姚星韩承佑高玉杰张元波陈明田正牧董学
Owner BOE TECH GRP CO LTD
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