Gate drive on array unit and method for driving the same, gate drive on array circuit and display apparatus

摘要

Provided are a GOA unit and driving method, a GOA circuit and a display apparatus. A first node control unit (31) pulls a first node (PU) to a voltage at a first level terminal (CN) under the control of a first input terminal (IN), or to a voltage at a second level terminal (CNB) under the control of a second input terminal (INPUT). A second node control unit (32) pulls a second node (PD) to a voltage at a third level terminal (VGH) under the control of the first level terminal (CN), the second level terminal (CNB), a second clock signal terminal (CK2) and a third clock signal terminal (CK3), or to a voltage at a fourth level terminal (VGL) under the control of the first node (PU). An output unit (33) outputs a signal at the first clock signal terminal (CK1) under the control of the first node (PU), or pulls the output terminal (OUTPUT) to the voltage at the fourth level terminal (VGL) under the control of the second node (PD).

主权项

1. A gate drive on array GOA unit, comprising a first node control unit, a second node control unit and an output unit; wherein
the first node control unit is connected to a first input terminal, a second input terminal, a first level terminal, a second level terminal, a first node, a second node and a fourth level terminal, and is configured to pull a voltage at the first node to a voltage at the first level terminal under the control of a signal at the first input terminal, or pull the voltage at the first node to a voltage at the second level terminal under the control of a signal at the second input terminal; the second node control unit is connected to the first level terminal, the second level terminal, a third level terminal, the fourth level terminal, a second clock signal terminal, a third clock signal terminal, the first node and the second node, and is configured to pull a voltage at the second node to a voltage at the third level terminal under the control of the first level terminal, the second level terminal, the second clock signal terminal and the third clock signal terminal, or pull the voltage at the second node to a voltage at the fourth level terminal under the control of the first node; the output unit is connected to an output terminal, a first clock signal terminal, the first node, the second node and the fourth level terminal, and is configured to output a signal at the first clock signal terminal to the output terminal as a gate driving signal under the control of the first node, or pull the voltage at the output terminal to the voltage at the fourth level terminal under the control of the second node.