主权项 |
1. A gate discharge control circuit of a liquid crystal display (LCD), comprising:
a first input end, configured to receive a first direct current (DC) voltage; a second input end, configured to receive a second DC voltage, wherein a falling speed of the second DC voltage is less than a falling speed of the first DC voltage during shutting down the LCD; a first voltage division circuit, coupled between the second input end and a grounded end; a control circuit, having a switch, a control end of the switch being coupled to the first input end, a first end of the switch being coupled to a first node of the first voltage division circuit, and a second end of the switch being coupled to the grounded end; a second voltage division circuit, having a first end, a second end and a second node, the first end of the second voltage division circuit being coupled to the first node and the first end of the switch; and at least a discharge switch, having a first end, a second end and a control end, the first end of the at least a discharge switch being coupled to the second node, the second end of the at least a discharge switch being coupled to at least a gate line of the LCD, and the control end of the at least a discharge switch being coupled to the second end of the second voltage division circuit. |