Patent ID: 11862099
Assignee: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. The shift register unit according to claim 15, wherein the cascade pull-up sub-circuit comprises a cascade pull-up transistor and a storage capacitor, each scanning signal output pull-up sub-circuit comprises a scanning signal output pull-up transistor,
a gate electrode of the cascade pull-up transistor is formed as the pull-up control terminal of the pull-up sub-circuit, a first electrode of the cascade pull-up transistor is formed as an input terminal of the cascade pull-up sub-circuit, a second electrode of the cascade pull-up transistor is formed as the output terminal of the cascade pull-up sub-circuit, one terminal of the storage capacitor is electrically coupled to the gate electrode of the cascade pull-up transistor, and the other terminal of the storage capacitor is electrically coupled to the second electrode of the cascade pull-up transistor; and
a gate electrode of the scanning signal output pull-up transistor is electrically coupled to the gate electrode of the cascade pull-up transistor, a first electrode of the scanning signal output pull-up transistor is formed as an input terminal of the scanning signal output pull-up sub-circuit, and a second electrode of the scanning signal output pull-up transistor is formed as the output terminal of the scanning signal output pull-up sub-circuit,
wherein the cascade pull-down sub-circuit comprises a plurality of cascade pull-down transistors, and the number of the cascade pull-down transistors is the same as the number of the control terminals of the pull-down sub-circuit and the cascade pull-down transistors correspond to the control terminals of the pull-down sub-circuit in a one-to-one mode, the scanning signal output pull-down sub-circuit comprises a plurality of scanning signal output pull-down transistors, and the number of the scanning signal pull-down output transistors is the same as the number of the control terminals of the pull-down sub-circuit and the scanning signal pull-down output transistors correspond to the control terminals of the pull-down sub-circuit in a one-to-one mode;
gate electrodes of the cascade pull-down transistors are respectively formed as the pull-down control terminals of the pull-down sub-circuit, first electrodes of the cascade pull-down transistors are formed as the input terminal of the cascade pull-down sub-circuit, and second electrodes of the cascade pull-down transistors are formed as the output terminal of the cascade pull-down sub-circuit;
gate electrodes of the scanning signal output pull-down transistors are respectively electrically coupled to corresponding pull-down control terminals of the pull-down sub-circuits, first electrodes of the scanning signal output pull-down transistors are formed as the input terminal of the scanning signal pull-down output sub-circuit, and second electrodes of the scanning signal output pull-down transistors are formed as the output terminal of the scanning signal pull-down output sub-circuit.