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

Claim 8:
9. A method for timing control, applied to a light-emitting drive circuit according to claim 1, the method comprising:
in a trigger phase, controlling a second clock signal line to output a low-potential second clock signal, to enable the first pull-down control sub-circuit to be switched off; controlling a first clock signal line to output a high-potential first clock signal, to enable the first pull-up control sub-circuit to be switched on when the (n+1)-th stage light-emitting drive signal is at a high potential, so that the potential of the first node is pulled up to the first potential, and the second pull-down control sub-circuit is charged;
in an output phase, controlling the first clock signal line to output a low-potential first clock signal, to enable the first pull-up control sub-circuit to be switched off; controlling the second clock signal line to output a high-potential second clock signal, to enable the first pull-down control sub-circuit to be switched on, so that the second pull-down control sub-circuit is discharged, and the potential of the second node is pulled up to the fourth potential; and
in a reset phase, controlling the second clock signal line to output the high-potential second clock signal, to enable the first pull-down control sub-circuit to be switched on when the (n−1)-th stage light-emitting drive signal is at a high potential, so that the potential of the first node is pulled up to the third potential.