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

A technology of a shift register and a driving method, which is applied in the field of gate drive circuits, display devices, and shift register units, and can solve problems such as low circuit reliability and inverter threshold voltage drift

Active Publication Date: 2020-05-19
HEFEI BOE ZHUOYIN TECH CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[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 it is necessary to use a large number of TFTs to form an inverter , while the inverter is affected by the threshold voltage drift of the TFT, resulting in a problem of low reliability of the circuit

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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 Construction

[0077] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0078] The transistors used in all embodiments of the present invention may be triodes, thin film transistors or field effect transistors or other devices with the same characteristics. In the embodiment of the present invention, in order to distinguish the two poles of the transistor except the control pole, one pole is called the first pole, and the other pole is called the second pole.

[0079] In actual operation, when the transistor is a triode, the contr...

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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 ...

Claims

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Application Information

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IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G11C19/28G09G2310/0286G09G3/3266
Inventor 袁志东李永谦袁粲鲍文超
Owner HEFEI BOE ZHUOYIN TECH CO LTD
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