Shift register, display apparatus, gate driving circuit, and driving method

摘要

A shift register, a display apparatus, a gate driving circuit and a driving method, the shift register comprises a plurality of stages of shift register circuits (SR0-SRn), a Nth stage shift register circuit among the plurality of stages of shift register circuits (SR0-SRn) comprises: a pre-charging circuit (1), a pulling-up circuit (2), a resetting circuit (3) and a retaining circuit, the retaining circuit is equipped with an eighth transistor (M8) whose gate is connected with a first control signal terminal (CK), source and drain are connected with each other. Not only a shift registering is realized, but also the operation period of the circuit is decreased, which can address the problem of shift in the voltage thresholds. Further, with the transistor whose source and drain are short-circuited, a control of the control signal on the pulling-down node is realized, so that a potential at the pulling-down node rises rapidly when the first control signal is in the high level and has a reduced descending range when the first control signal is in the low level, which can realize a better control of the circuit.

主权项

1. A shift register comprising a plurality of stages of shift register circuits, a Nth stage shift register circuit among the plurality of stages of shift register circuits comprising:
a pre-charging circuit for pre-charging a pulling-up circuit; the pulling-up circuit for enabling an outputting terminal to output a high level after the pre-charging is completed; a resetting circuit for resetting the Nth stage shift register circuit after the outputting terminal outputs the high level; a retaining circuit for retaining an output potential of the Nth stage shift register circuit after the Nth stage shift register circuit is reset; a control terminal and an inputting terminal of the pre-charging circuit are connected with an outputting terminal of a previous stage shift register circuit, an outputting terminal thereof is connected with an inputting terminal of the resetting circuit; an inputting terminal of the pulling-up circuit is connected with a first control signal terminal; a control terminal of the resetting circuit is connected with an outputting terminal of a next stage shift register circuit, an outputting terminal thereof is grounded; the retaining circuit is connected with the outputting terminal of the pre-charging circuit, the inputting terminal of the resetting circuit, a control terminal of the pulling-up circuit and an outputting terminal of the pulling-up circuit, a first control terminal is connected with the first control signal terminal, and a second control terminal is connected with a second control signal terminal; and the retaining circuit is equipped with one transistor whose gate is connected with the first control signal terminal, source and drain are connected with each other.