Shifting register unit, shifting register, gate drive circuit and display device

Abstract

The invention provides a shifting register unit, a shifting register, a gate drive circuit and a display device. The shifting register unit comprises an input module, an output module, a reset module and a pull-down module. The output module is used for outputting first clock signals of a first clock signal end to the output end of the shifting register unit according to the electric potential of pull-up nodes at the output stage. The reset module is used for lowering the electric potential of the pull-up nodes and the output end of the shifting register unit according to reset signals of pull-up nodes at the reset stage. The pull-down module is used for lowering the electric potential of the pull-up nodes and the output end of the shifting register unit according to second clock signals of a second clock signal end at the pull-down stage. The first clock signal end supplies the high-level first clock signals to the output module only at the output stage. The second clock signal end supplies the high-level second clock signals to the pull-down module only at the reset stage or the pull-down stage. Compared with the prior art, the shifting register unit has a simpler structure.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a shift register, a gate drive circuit and a display device. Background technique [0002] Liquid crystal displays (LCDs) have the advantages of light weight, thin thickness, and low power consumption, and are widely used in electronic products such as televisions, mobile phones, and monitors. [0003] The liquid crystal display is composed of a matrix of pixels in both horizontal and vertical directions. When the liquid crystal display is displaying, a gate-level scanning signal is output through a gate-level driving circuit, and each pixel is scanned row by row. The driver of the liquid crystal display mainly includes a gate driver and a data driver. The gate driver converts the input clock signal through a shift register (Shift Register, SR), switches it into an on / off voltage, and applies it to the gate line of the LCD panel in sequence. superior. A ...

AI Technical Summary

Problems solved by technology

[0004] like figure 1 It is a schematic diagram of the circuit structure of an existing shift register unit. The circuit is composed of 12 TFTs made of amorphous silicon (that is, M1-M12 shown in the figure) and a capacitor. The structure of this circuit is relatively complicated. The space required is large and cannot meet the requirements of narrow borders

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