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

A technology of a shift register and a driving method, which is applied in the field of a gate drive circuit, a shift register unit and its drive, and a display device, and can solve problems such as poor display and tailing of a gate scanning signal

Active Publication Date: 2019-01-08
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a shift register unit and its driving method, a gate driving circuit, and a display device, which are used to improve the potential drop of the pull-up node due to electric leakage, which causes tailing of the gate scanning signal output from the signal output terminal. , causing bad display problems

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0090] The first input sub-circuit 10 includes a first transistor M1, the gate of the first transistor M1 is connected to the first signal input terminal IN1, the first pole of the first transistor M1 is connected to the first signal input terminal IN1, and the second electrode of the first transistor M1 is connected to the first signal input terminal IN1. The pole is connected to the pull-up node PU.

[0091] The second input sub-circuit 20 includes a second transistor M2, the gate of the second transistor M2 is connected to the second signal input terminal IN2, the first pole of the second transistor M2 is connected to the pull-up node PU, and the second pole of the second transistor M2 is connected to The first signal input terminal IN1.

[0092] The first output sub-circuit 30 includes a third transistor M3 and a storage capacitor C, the gate of the third transistor M3 is connected to the pull-up node PU, the first pole of the third transistor M3 is connected to the first cl...

Embodiment 2

[0105] The first input sub-circuit 10 includes a first transistor M1, the gate of the first transistor M1 is connected to the first signal input terminal IN1, the first pole of the first transistor M1 is connected to the first signal input terminal IN1, and the second electrode of the first transistor M1 is connected to the first signal input terminal IN1. The pole is connected to the pull-up node PU.

[0106] The second input sub-circuit 20 includes a second transistor M2, the gate of the second transistor M2 is connected to the second signal input terminal IN2, the first pole of the second transistor M2 is connected to the pull-up node PU, and the second pole of the second transistor M2 is connected to The first signal input terminal IN1.

[0107] The first output sub-circuit 30 includes a third transistor M3 and a storage capacitor C, the gate of the third transistor M3 is connected to the pull-up node PU, the first pole of the third transistor M3 is connected to the first ...

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Abstract

The invention provides a shift register unit and a driving method thereof, a gate driving circuit and a display device, which relate to the technical field of display and are used for improving the problem that the potential of a pull-up node is lowered due to leakage current and the gate scanning signal output from a signal output terminal is trailed. The shift register unit includes a first input sub-circuit for transmitting a signal of the first signal input terminal to a pull-up node under the control of the first signal input terminal; a second input sub-circuit for transmitting the firstsignal input terminal to the pull-up node; a first output sub-circuit for transmitting a signal of the first clock signal terminal to the first signal output terminal under the control of the pull-upnode; and a second output subcircuit configured to transmit a signal of the second clock signal terminal to the second signal output terminal under the control of the pull-up node.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a driving method thereof, a gate driving circuit, and a display device. Background technique [0002] In recent years, the development of displays has shown a trend of high integration and low cost. One of the very important technologies is the mass production of GOA (Gate Driver on Array, integrated gate drive circuit) technology. The GOA technology is used to integrate the gate drive circuit on the array substrate of the display panel, so that the part of the gate drive integrated circuit can be saved, so as to reduce the product cost in terms of material cost and manufacturing process. The gate switch circuit integrated on the array substrate using the GOA technology is also called a GOA circuit or a shift register circuit, wherein each shift register unit in the gate switch circuit is also called a GOA unit. [0003] In the prior art, in high-size an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C19/28G09G3/36G09G3/3266
CPCG09G3/3266G09G3/3677G11C19/28G09G2310/0286G09G2310/08
Inventor 韩明夫
Owner BOE TECH GRP CO LTD
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