Shift register unit, driving method, gate driving circuit and display device

A shift register and shift register technology are applied in the fields of shift register units, gate drive circuits and display devices, and can solve the problems of unstable output characteristics, failures, transistor threshold voltage shifts, etc. of gate drive circuits.

Active Publication Date: 2020-04-17
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 shift register unit, a driving method, a gate drive circuit and a display device, so as to solve the problem that the gate drive circuit in the existing display device is prone to drift of the threshold voltage of the transistor, causing gate drive The output characteristics of the circuit are unstable or invalid, thus affecting the display problem

Method used

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  • Shift register unit, driving method, gate driving circuit and display device
  • Shift register unit, driving method, gate driving circuit and display device
  • Shift register unit, driving method, gate driving circuit and display device

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Embodiment approach

[0435] According to another specific implementation mode, the display device described in the embodiment of the present invention may include two gate drive circuits; the display device may also include a display substrate and N rows of pixel circuits disposed on the display substrate ; N is a positive integer;

[0436] The first gate drive circuit is used to provide corresponding gate drive signals for the N rows of pixel circuits;

[0437] The second gate drive circuit is used to provide corresponding gate drive signals for the N rows of pixel circuits;

[0438] The first gate driving circuit is arranged on the left side of the display substrate, and the second gate driving circuit is arranged on the right side of the display substrate.

[0439] The display device described in the embodiment of the present invention can respectively provide corresponding gate driving signals for the pixel circuits through two gate driving circuits, which can avoid insufficient charging of s...

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Abstract

The invention provides a shifting register unit, a driving method, a gate driving circuit and a display device, and relates to the technical field of display. The shifting register unit comprises a shift register module and an output module, and the shift register module performs shift register on an input signal under the control of a reset signal and a first clock signal to generate a carry output signal; the voltage signal of the shift output node is opposite to the carry output signal; the output module is used for generating a gate drive signal according to the output control signal and the second clock signal; wherein the output control signal is the carry output signal or the voltage signal of the shift output node. The shift register unit, the driving method, the gate 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 shift register unit, a driving method, a gate driving 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 mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G09G3/3266G09G3/36G09G3/32G11C19/28
CPCG09G3/20G09G3/32G09G3/3266G09G3/3674G09G2310/0286G11C19/28
Inventor 李新国郝学光王漪
Owner BOE TECH GRP CO LTD
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