SHIFT REGISTER UNIT, SHIFT REGISTER AND DISPLAY APPARATUS

摘要

A shift register unit, a shift register and a display apparatus, insulate a start charging capacitor from the gate of the driving transistor, and adopt a dual pulling-down structure for the gate of the driving transistor and the output terminal simultaneously thereby the transistor can be turned off normally and a leakage is prevented. The shift register unit comprises: a driving transistor (T1); a first capacitor (C1) for storing an electrical signal from a previous stage; an output pulling-up module (400) connected with a drain of the driving transistor (T1); a drive output terminal (OUT (N)) connected with a source of the driving transistor (T1); a carry signal output terminal connected with a gate of the driving transistor (T1) or the drive output terminal (OUT (N)); an output pulling-down module (100) connected with a source of the driving transistor (T1); a first pulling-down module (200), which is connected with the gate of the driving transistor (T1) through a pulling-up node (PU) and connected with the output pulling-down module (100) through a pulling-down node (PD); and an insulation pulling-up module (300) connected between the pulling-up node (PU) and the first capacitor (C1).

主权项

1. A shift register, comprising:
a driving transistor; a first capacitor for storing an electrical signal from a previous stage; an output pulling-up module, which is connected with a drain of the driving transistor and used for pulling-up the drain of the driving transistor to a high level; a drive output terminal connected with a source of the driving transistor; a carry signal output terminal, which is connected with a gate of the driving transistor or the drive output terminal and used for outputting an electrical signal to a next stage; an output pulling-down module, which is connected with a source of the driving transistor and used for pulling-down the source of the driving transistor to a second level a first pulling-down module, which is connected with the gate of the driving transistor through a pulling-up node, connected with the output pulling-down module through a pulling-down node, and used for pulling down the pulling-up node to the second level or a first level, the pulling-up node being a connection node of the first pulling-down module and the gate of the driving transistor, and the pulling-down node being a connection node of the first pulling-up module and the output pulling-down module; and an insulation pulling-up module, which is connected between the pulling-up node and the first capacitor and used for pulling-up the pulling-up node to the high level.