Gate drive unit and drive method, gate drive circuit and display device

A gate drive circuit and gate drive technology are applied in the fields of gate drive units and drive methods, gate drive circuits and display devices, and can solve the problem of transistor threshold voltage drift, unstable output characteristics of gate drive circuits, failures, etc. question

Active Publication Date: 2020-03-31
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a gate drive unit, a drive method, a gate drive circuit, and a display device, so as to solve the problem that the gate drive circuit in the e

Method used

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  • Gate drive unit and drive method, gate drive circuit and display device
  • Gate drive unit and drive method, gate drive circuit and display device
  • Gate drive unit and drive method, gate drive circuit and display device

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Embodiment approach

[0135] According to a specific implementation manner, the input control signal may be an inversion signal of the input signal;

[0136] The registered node control subcircuit may include an inverting unit and a registered node control unit;

[0137] The inversion unit is used to invert the input signal to obtain an inversion signal of the input signal, and output the inversion signal through an input inversion node;

[0138] The registered node control unit is configured to control the voltage of the registered node according to the inversion signal of the input signal under the control of the first clock signal, the second clock signal and the voltage signal of the first node Signal.

[0139] In the embodiment of the present invention, when controlling the voltage signal of the register node, the input signal can be inverted by the inverting unit first to obtain the inverted signal of the input signal, and then the register node control unit can be used to invert the input s...

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Abstract

The invention provides a gate drive unit, a drive method, a gate drive circuit and a display device, and relates to the technical field of display. The gate drive unit comprises a shift register module, an output module and a pull-down module. The shift register module respectively controls a voltage signal of a first node and a voltage signal of a second node according to the input signal under the control of the first clock signal and the second clock signal; the output module controls the gate drive signal output end to be communicated with the first clock signal end under the control of the voltage signal of the first node and the voltage signal of the second node; and the pull-down module controls the gate drive signal output end to be communicated with the first voltage end under thecontrol of the voltage signal of the second node. The grid driving unit, the driving method, the grid driving circuit and the display device are stable in characteristics. The display device may be an organic light emitting diode display device, a liquid crystal display device, or a polymer light emitting device display device.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gate drive unit and a drive method, a gate drive circuit and a display device. Background technique [0002] At present, most of the mid-to-high-end mobile phones of many domestic and foreign mobile phone manufacturers use LTPS (Low Temperature Poly-silicon, low temperature polysilicon) display screens. In order to save the cost of the display screens, the gate drive circuits used are generally N-type gate drive circuits. The N-type gate drive circuit refers to a gate drive circuit that simply includes N-type transistors. [0003] However, in the field of OLED (Organic Light-Emitting Diode, organic light-emitting diode), LCD (Liquid Crystal Display, liquid crystal display) display field and PLED (Polymer Light Emitting Devices, polymer light-emitting device) display field, with the display quality and Reliability requirements are getting higher and higher, and most mo...

Claims

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Application Information

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IPC IPC(8): G09G3/20G09G3/3266G09G3/36G11C19/28
CPCG09G3/20G09G3/3266G09G3/3677G09G2310/0286G11C19/28
Inventor 李新国郝学光王漪
Owner BOE TECH GRP CO LTD
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