SHIFT REGISTER UNIT AND DRIVING METHOD, GATE DRIVE CIRCUIT AND DISPLAY DEVICE

摘要

A shift register unit and a driving method, a gate drive circuit and a display device, the shift register unit comprises a first transistor (T1), an input module (10), a first control module (20), a second control module (30) and an output module (40). The shift register unit and driving method, gate drive circuit and display device are capable of solving the problem that the decrease of drive capacity of the shift register unit is caused by loss of the threshold voltage.

主权项

1. A shift register unit, comprising: a first transistor, an input module, a first control module, a second control module and an output module;
the input module, being connected with a trigger signal end, a first clock signal end, a second clock signal end and a first node, respectively; for transmitting signal inputted by the trigger signal end to the first node according to signal inputted by the first clock signal end or the second clock signal end; The first transistor, the gate thereof being connected with the first node, a first pole thereof being connected with a third clock signal end, a second pole thereof being connected with the first control module and the second node; for making the gate thereof be in a suspended state when the first transistor is turned on and the output module is turned off so that signal inputted by the third clock signal end is transmitted to the second node without loss of threshold voltage of the first transistor; and for transmitting signal inputted by the third clock signal end to the first control module when the first transistor is turned on; the first control module, being connected with a first voltage end and a third node, the third clock signal end and the second pole of the first transistor, respectively; for turning on and turning off under the control of signal inputted by the third clock signal end or the first voltage end, and for applying signal inputted by the first voltage end or the third clock signal end to the third node when the first control module is turned on; the second control module, being connected with a second voltage end, the second node, the first clock signal end, the second clock signal end and the third node, respectively; for applying the voltage of the second voltage end to the second node according to potential of the third node and signal inputted by the first clock signal end or the second clock signal end; the output module, being connected with the second node, the third node, the second voltage end, the second clock signal end and a signal output end of the corresponding stage, respectively; for transmitting signal inputted by the second clock signal end or signal inputted by the second voltage end to the signal output end of the corresponding stage according to potential of the second node or the third node.