Shifting register unit and driving method thereof, scanning drive circuit and display device

Abstract

The invention provides a shifting register unit and a driving method thereof, a scanning drive circuit and a display device. The shifting register unit comprises an input end, an output end, a reset end, a first noise-amplifying end, an output drop-down module, an input module, an output module, a reset module and a first noise-amplifying module, wherein the input module, the output module, the reset module and the first noise-amplifying module are connected to a first node; the input module is used for raising the voltage of the first node under the control of a signal received by the input end; the reset module is used for lowering the voltage of the first node under the control of a signal received by the reset end; and the first noise-amplifying module is used for releasing the noise voltage of the first node to the first noise-amplifying end under the control of a third clock signal, and used for disconnecting the electric connection between the first noise-amplifying end and the first node when the voltage of the first node is raised. According to the invention, the stable output of removed noise jamming of GOA units can be realized by relatively less circuit components.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a driving method thereof, a scan driving circuit, and a display device. Background technique [0002] Compared with the traditional technology, GOA (Gate Drive on Array) not only saves the cost, but also realizes the symmetrical and beautiful design on both sides of the display panel, and also saves the bonding area of ​​the chip and the fan-out area. The routing area is conducive to the realization of narrow border design. At the same time, since the chip bonding process in the row direction can be omitted, it is also beneficial to the overall production capacity and yield improvement. [0003] However, GOA also has some problems in practical applications. For example, in order to realize the stable output of scanning signals in each row and prevent false output caused by noise interference, it is often necessary to additionally set several circuit compo...

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Problems solved by technology

[0003] However, GOA also has some problems in practical applications. For example, in order to realize the stable output of scanning signals in each row and prevent false output caused by noise interference, it is often necessary to additionally set several circuit components in the GOA unit of each row, so that each The number of circuit components in a GOA unit may reach more than a dozen, which seriously restricts the control of product cost and the reduction of power consumption

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