主权项 |
1. A shift register comprising a plurality of stages of shift register circuit, wherein each stage of shift register circuit comprises:
a first switch having a first terminal for receiving a clock signal, a second terminal for outputting a first scan signal of current stage of shift register circuit, and a control terminal electrically coupled to a node of the current stage of shift register circuit; an input circuit comprising:
a second switch having a first terminal, a second terminal electrically coupled to the node of the current stage of shift register circuit, and a control terminal electrically coupled to a node of a previous M-th stage of shift register circuit in the plurality of stages of shift register circuit, wherein M is a positive integer; anda receiving circuit electrically coupled to the first terminal of the second switch, for receiving a scan signal outputted from the previous M-th stage of shift register circuit, and for controlling a voltage level of the first terminal of the second switch according to the scan signal; a pull-down circuit electrically coupled to the node of the current stage of shift register circuit and for pulling down a voltage level of the node of the current stage of shift register circuit according to a scan signal outputted from a following L-th stage of shift register circuit in the plurality of stages of shift register circuit, wherein L is a positive integer; and a pull-down voltage regulator circuit electrically coupled to the node of the current stage of shift register circuit and the second terminal of the first switch and for pulling down a voltage level of the second terminal of the first switch according to the voltage level of the node of the current stage of shift register circuit. |