Shifting register and drive method thereof as well as grid drive circuit and display device

Abstract

The invention provides a shifting register and a drive method thereof as well as a grid drive circuit and a display device. The shifting register comprises a first input module, a second input module, an output module, an output pull-down module and a reset module which are all connected with a first node, wherein the first input module is used for pulling up a potential at the first node under the action of a signal received from an input end; the output module is used for pulling up a potential at an output end under the action of the potential at the first node; the reset module is used for pulling down the potential at the first node under the action of a signal received from a reset end; the output pull-down module is used for pulling down the potential at the output end under the action of a first clock signal; the second input module is used for conducting the input end and the first node within working time of the first input module and the output pull-down module under the action of the first clock signal. The shifting register can solve a problem of limitation of a circuit structure provided with pulling-up nodes (PU) and pulling-down nodes (PD) on reduction of the border width occupied by a GOA (gate driver on array) circuit.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register, a driving method thereof, a gate driving circuit, and a display device. Background technique [0002] In the prior art, in order to achieve the purpose of low cost and narrow frame, most of them adopt the GOA (Gate driver On Array, array substrate row drive) technology, while the traditional GOA circuits are arranged on both sides of the effective display area, requiring The black matrix area of ​​a certain width is blocked, so that the display panel itself will have a certain width of the border. Considering the user's comfort and operability, ultra-narrow borders or no borders are the current consumption and technology trends. However, the GOA circuit mainly implements the shift register function. In the GOA circuit that cannot realize CMOS (Complementary Metal Oxide Semiconductor, Complementary Metal Oxide Semiconductor) devices such as a-Si (amorphous silic...

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Problems solved by technology

[0003] Aiming at the defects in the prior art, the present invention provides a shift register and its driving method, a gate driving circuit, and a display device, which can solve the limitation of the frame width occupied by the GOA circuit due to the circuit structure with the pull-up node PU and the pull-down node PD The problem of reducing

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