Patent ID: 9640276
Date: 2017-05-02
CPC Classifications: G09G,G11C

Claim:
1. A shift register unit comprising an input module, a reset module, an output module, a pull-down control module and a pull-down module, wherein, the input module is connected to an input signal terminal, a first voltage signal terminal and an output terminal respectively, and is configured to provide a first voltage signal inputted from the first voltage signal terminal to the output terminal in response to a signal inputted from the input signal terminal; the reset module is connected to a reset signal terminal, a second voltage signal terminal and a first node respectively, and is configured to provide a second voltage signal inputted from the second voltage signal terminal to the first node in response to a reset signal outputted from the reset signal terminal, the first node being a connecting point of the reset module and the input module; the output module is connected to the first node, a first clock signal terminal and the output terminal respectively, and is configured to provide a first clock signal inputted from the first clock signal terminal to the output terminal in response to a voltage at the first node; the pull-down control module is connected to the first node, a second node, a second clock signal terminal, the output terminal and a power supply negative voltage terminal respectively, and is configured to provide a second clock signal to the second node of the pull-down control module in response to the second clock signal inputted from the second clock signal terminal, and provide a power supply negative voltage inputted from the power supply negative voltage terminal to the second node in response to a voltage at the first node or a voltage at the output terminal, the second node being a connecting point of the pull-down control module and the pull-down module; the pull-down module is connected to the first node, the second node, the power supply negative voltage terminal and the output terminal respectively, and is configured to provide the power supply negative voltage inputted from the power supply negative terminal to the first node and the output terminal in response to the voltage at the second node; and wherein the input module comprises: wherein the reset module comprises: wherein the output module comprises: wherein pull-down control module comprises: