Shift register unit and driving method thereof, gate driving circuit, display device
A technology of shift register and gate connection, which is applied in the field of gate drive circuit, shift register unit and its drive, and display device, and can solve the problem of whether the switching transistor is in positive or negative bias and the gate scan signal output is abnormal , drive transistor abnormalities, etc.
Active Publication Date: 2021-04-23
BOE TECH GRP CO LTD
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Problems solved by technology
When some switch transistors in the shift register unit are connected to the constant voltage terminal for a long time, it will cause the above switch transistors to be in a forward or negative bias state for a long time. In this case, when the drive in the shift register unit When the gate of the transistor is connected to the above-mentioned switching transistor, it will cause an abnormality in the drive transistor, which will cause the above-mentioned gate scan signal output to be abnormal
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[0042] 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.
[0043] Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present application, unless otherwise specified, "plurality" means two...
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The embodiment of this application provides a displacement register unit and its driving method, a gate driver circuit, and a display device. It involves the display technology field and is used to solve the partial pressure state in some transistors in the displacement register unit for a long time, resulting in the displacement of the displacement.The register unit cannot output the grid scanning signal.The shift register unit includes the first input module, which includes the first input sub -module.Control the potential of the drop -down node; the output module outputs the signal of the clock signal to the signal output terminal; the drop -down module will pull down the potential of the pull node and the signal output end to the potential of the first power supply end;To the upper pull node.The displacement register unit is used to output gate scanning signals.
Description
technical field [0001] The present 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] TFT-LCD (Thin Film Transistor Liquid Crystal Display, thin film transistor-liquid crystal display device) or OLED (Organic Light Emitting Diode, organic light emitting diode) display device has the advantages of low radiation, small size and low energy consumption, and is widely used In electronic products such as laptops, flat-screen TVs or mobile phones. [0003] In the prior art, a GOA (Gate Driver on Array, array substrate row driving) circuit is usually provided in the non-display area of the above-mentioned display device for scanning the gate lines row by row. The shift register unit in the GOA circuit can output a gate scan signal to a gate line in the display area of the display device. When some switch transistors in the shift regis...
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IPC IPC(8): G11C19/28G09G3/20
CPCG09G3/20G11C19/28G09G2310/0286G09G3/3677G09G3/3266G09G3/2092G09G2300/0426G09G2310/0283G09G2310/061G09G2310/08
Inventor 王志冲郑皓亮韩承佑商广良袁丽君姚星韩明夫
Owner BOE TECH GRP CO LTD