Shift register, array substrate gate driving circuit and display device

A shift register and level technology, which is applied in the field of array substrate gate drive circuits and display devices, can solve the problems of poor display effect at high temperature, electric leakage, large drop, etc., meet the requirements of high temperature reliability, prevent drop, and improve effect of effect

Active Publication Date: 2019-07-19
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The GOA circuit in the related art, such as the NMOS drive circuit of 10T3C, will cause TFT (Thin Film Transistor, which is a thin film transistor) leakage phenomenon under high temperature conditions, which will cause the output of the GOA circuit at this stage to drop (voltage drop)
Especially at the touch moment of TDDI (Touch and Display Driver Integration, touch and display driver integration) products, the PU (Pull UP, pull-up) point will have a large drop, resulting in a large output drop of this stage, which will bring The problem of poor display effect at high temperature

Method used

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  • Shift register, array substrate gate driving circuit and display device
  • Shift register, array substrate gate driving circuit and display device
  • Shift register, array substrate gate driving circuit and display device

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Embodiment Construction

[0032]Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] A shift register, an array substrate gate driving circuit and a display device according to embodiments of the present invention will be described below with reference to the accompanying drawings.

[0034] combine figure 1 and figure 2 As shown, the shift register proposed by an embodiment of the present invention includes an input unit 10 , a pull-up output unit 20 and a first charging unit 30 .

[0035] Wherein, the input unit 10 is connected to the signal input terminal and the signal control terminal respectively, a...

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Abstract

The invention discloses a shift register, comprising: an input unit connected to a signal input terminal and a signal control terminal respectively, and the input unit is used to generate a charging signal according to an input signal provided by the signal input terminal and a control signal provided by the signal control terminal. Control signal and voltage hold signal; pull-up output unit, the pull-up output unit includes a pull-up node; a first charging unit, the first charging unit is connected to the pull-up node, the input unit and the first level signal terminal respectively, and the first charging unit The unit is used to charge the pull-up node according to the level signal provided by the first level signal terminal according to the charging control signal, and maintain the voltage of the pull-up node according to the voltage hold signal so that the drive signal output by the shift register has no voltage It can ensure that there is no drop in the output of this stage when the high-temperature TFT leaks, and effectively improve the display effect at high temperature. The invention also discloses an array substrate grid driving circuit and a display device.

Description

technical field [0001] The present invention relates to the technical field of display control, in particular to a shift register, a gate driver on array (GOA, Gate Driver on Array) circuit and a display device. Background technique [0002] For GOA circuits in the related art, such as 10T3C NMOS drive circuits, under high temperature conditions, TFT (Thin Film Transistor, which is a thin film transistor) leakage phenomenon will occur, which will cause a drop (voltage drop) in the output of the GOA circuit at this stage. Especially at the touch moment of TDDI (Touch and Display Driver Integration, touch and display driver integration) products, the PU (Pull UP, pull-up) point will have a large drop, resulting in a large output drop at this stage, which will bring Come to the problem of poor display effect at high temperature. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G11C19/28G09G2310/0286G06F3/04166G09G3/3677G09G3/3266G09G2310/08G06F3/0412G09G2300/0426G09G2300/08G09G2310/0267G09G2310/0283G09G2330/08
Inventor 马明超樊君
Owner BOE TECH GRP CO LTD
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