Shift register unit and method for driving the same, shift register and display apparatus

A shift register unit, comprising an input module, a pull-up module, an output control module and an output pull-down module, wherein:

• the input module is connected with a signal input terminal, a first clock signal input terminal and a low level signal terminal, and is configured to provide a signal inputted from the signal input terminal to a first node under the control of a signal inputted from the first clock signal input terminal, and control potential of a second node under the control of the signal inputted from the first clock signal input terminal and a low level signal inputted from the low level signal terminal;
• the output control module is connected with a second clock signal input terminal and a high level signal terminal, and is configured to control potential of a third node under the control of a potential of the first node, the potential of the second node, a signal inputted from the second clock signal input terminal and a high level signal inputted from the high level signal terminal;
• the pull-up module is connected with the high level signal terminal, and is configured to pull up a level of a signal output terminal to be at a high level under the control of the potential of the third node;
• and
• the output pull-down module is connected with the first clock signal input terminal, the second clock signal input terminal, the high level signal terminal and the low level signal terminal, and is configured to pull down potential of the signal output terminal under the control of the potential of the third node, the signal inputted from the first clock signal input terminal, the signal inputted from the second clock signal input terminal, the high level signal inputted from the high level signal terminal and the low level signal inputted from the low level signal terminal.