Patent ID: 11967275
Assignee: HKC CORPORATION LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 5:
6. The light-emitting drive circuit according to claim 1, wherein the n-th light-emitting drive sub-circuit further comprises:
a first maintenance sub-circuit, an input of the first maintenance sub-circuit is configured to be connected to the second power supply, a control end of the first maintenance sub-circuit is in electrical connection with the first node, an output of the first maintenance sub-circuit is in electrical connection with the second node, and the first maintenance sub-circuit is configured to maintain the potential of the second node in a case that the potential of the first node is the first potential; and
a second maintenance sub-circuit, an input of the second maintenance sub-circuit is configured to be connected to the second power supply, a control end of the second maintenance sub-circuit is in electrical connection with the second node, an output of the second maintenance sub-circuit is in electrical connection with the first node, and the second maintenance sub-circuit is configured to maintain the potential of the first node in a case that the potential of the second node is the fourth potential.