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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 abnormal display, inability of the shift register unit to output gate drive signals stably, and large leakage current of reset transistors, etc. question

Inactive Publication Date: 2018-10-30
BOE TECH GRP CO LTD +1
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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 drive circuit and a display device to solve the problem of the reset transistor in the shift register unit due to the generation of carriers by light in the prior art. The leakage current is large, which will lower the potential of the pull-up node in the output stage, which will cause the shift register unit to fail to output the gate drive signal stably, resulting in abnormal display problems

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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

[0052] 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.

[0053] The transistors used in all the embodiments of the present invention can be 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 gate, one pole is called the first pole, and the other pole is called the second pole. In actual operation, the first electrode may be a drain, and the second electrode may...

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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 reset circuit, wherein the reset circuit is connected with a pull-up node and is used for resetting the potential of the pull-up node in a reset phase, and the shift register unit also comprises a reset control circuit; the reset control circuit is connected with the reset circuit and is used for controlling and reducing the leakage current of the reset circuit at an output stage so as to maintain the potential of the pull-up node as a first voltage.The shift register unit circumvents the influence of the leakage current of a reset transistor on the output of a gate driving signal, therefore the display is not influenced.

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 existing narrow bezel display module, there is no light-shielding tape on both sides of the backlight, and the backlight directly illuminates the GOA (Gate On Array, gate driver installed on the array substrate) on both sides of the backlight. The reset transistor in the bit register unit generates carriers due to light, so the leakage current of the reset transistor is large, which will pull down the potential of the pull-up node in the output stage, resulting in the shift register unit not being able to output the gate drive signal stably , so that the gate drive voltage drops, and the module displays abnormally. Contents of the invention [0003] The main purpose of the present invention is to provide a shift register unit, a driving method, a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3266G09G3/34G11C19/28
CPCG09G3/3266G09G3/344G11C19/28G09G2310/0286G09G3/20G09G2300/0426G09G2310/061G09G3/2092G09G2310/08G11C19/184
Inventor 刘帅南王立冬包欢唐建业项得胜
Owner BOE TECH GRP CO LTD
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