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

Abstract

The invention provides a shift register unit, a driving method, a gate driving circuit and a display device. The shift register unit comprises a pull-down node control circuit; the pull-down node control circuit is electrically connected with an input end, a reset end, a first voltage end, a second voltage end and a pull-down nodeand is used for controlling the pull-down node to be communicated with the first voltage end or the second voltage end under the control of an input signal provided by the input end and a reset signal provided by the reset end, and controlling and maintaining the potential of the pull-down node. According to the shift register unit, the number of adopted transistors is reduced, and the reliability is high.

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] In the relevant shift register unit, it is necessary to control the potential of the pull-down node through an inverter. This method needs to utilize a large number of TFTs (thin film transistors) to form an inverter, and the number of TFTs adopted is large, which is not conducive to realizing high PPI ( Pixels Per Inch, the number of pixels per inch), and the inverter is affected by the threshold voltage drift of the TFT, which will lead to low circuit reliability. Contents of the invention

[0003] The main purpose of the present invention is to provide a shift register unit, a driving method, a gate driving circuit and a display device, so as to solve the problem of using an inverter to control the potential of the pull-down node in the prior art, and ...

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