A shift register and its driving method, gate driving circuit, and display device

Abstract

The embodiment of the invention provides a shift register and a driving method thereof, a grid driving circuit and a display device, relates to the technical field of display, and can reduce noise generated by switching a signal output end between a high potential and a low potential. An input sub-circuit in the shift register outputs voltage of a signal input end to a first control node; The first output control sub-circuit outputs the voltage of the first clock signal end to a second control node; The second output control sub-circuit outputs the intermediate voltage of the second voltage end to a second control node under the control of a second clock signal end and a third clock signal end; The output sub-circuit outputs the second control node to the signal output end under the control of the first control node; The reset sub-circuit outputs the voltage of the first voltage end to a first control node under the control of a reset signal end and a second clock signal end; And the pull-down sub-circuit outputs the voltage of the first voltage end to the signal output end under the control of the reset signal end and the second clock signal end.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a shift register, a driving method thereof, a gate driving circuit, and a display device. Background technique [0002] GOA (Gate Driver on Array, array substrate row drive) is a technology that integrates the gate driver circuit on the array substrate. The GOA circuit is composed of multi-stage cascaded shift registers, and each stage of the shift register The output terminal is connected to a gate line in the array substrate (display panel), and is used to output a gate scanning signal to the gate line, so that when the display panel is displaying, the GOA circuit drives multiple gate lines to perform progressive scanning . [0003] Among them, during the working process of the GOA circuit, the potential of the output terminal of each shift register will be switched between high level and low level, for example, from the charging node to the output stage, the output t...

AI Technical Summary

Problems solved by technology

[0003] Among them, during the working process of the GOA circuit, the potential of the output terminal of each shift register will be switched between high level and low level, for example, from the charging node to the output stage, the output terminal is switched from low level to high level ; Thereby will excite the noise (noise) with higher amplitude on the display panel, which will cause certain negative impact on the display panel; especially for the display panel using the active pen, the above noise will seriously interfere with the functional effect of the active pen

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