Gate Driving Circuit
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorChao DAI
Life of this patent
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Abstract
A gate driving circuit is provided, where includes a plurality of gate driving units connected in cascade, each of the gate driving units is used to drive two scan lines arranged continuously, a gate driving signal of a first scan line and a first cascading signal are respectively transmitted by a first pull up module and a first down transmitting module, and a gate driving signal of a second scan line and a second cascading signal are respectively transmitted by a second pull up module and a second down transmitting module. By the above manner, the disclosure is capable of decreasing a component quantity of GOA circuit, thus achieving the ultra-narrow frame design.
Claims20
A gate driving circuit, wherein the gate driving circuit comprises a plurality of gate driving units connected in cascade, each of the gate driving units is used to drive two scan lines arranged continuously, and the gate driving circuit comprises:
- a pull up controlling module for generating a scan level signal according to a former stage cascading signal;
- a first pull up module for pulling up a gate driving signal of a first scan line in the two scan lines according to the scan level signal and a first clock signal;
- a second pull up module for pulling a gate driving signal of a second scan line in the two scan lines according to the scan level signal and a second clock signal;
- a first down transmitting module for generating a first cascading signal according to the scan level signal;
- a second down transmitting module for generating a second cascading signal according to the scan level signal;
- a pull down module for pulling down gate driving signals of the first scan line and the second scan line;
- a first bootstrap capacitor for generating a low level of the gate driving signal of the first scan line;
- a second bootstrap capacitor for generating a low level of the gate driving signal of the second scan line;
- and
- a pull down holding module for holding the low level of the gate driving signals of the first scan line and the second scan line.
A gate driving circuit, wherein the gate driving circuit comprises a plurality of gate driving units connected in cascade, each of the gate driving units is used to drive two scan lines arranged continuously, and the gate driving circuit comprises:
- a pull up controlling module for generating a scan level signal according to a former stage cascading signal;
- a first pull up module for pulling up a gate driving signal of a first scan line in the two scan lines according to the scan level signal and a first clock signal;
- a second pull up module for pulling a gate driving signal of a second scan line in the two scan lines according to the scan level signal and a second clock signal;
- a first down transmitting module for generating a first cascading signal according to the scan level signal;
- a second down transmitting module for generating a second cascading signal according to the scan level signal;
- a pull down module for pulling down gate driving signals of the first scan line and the second scan line;
- a first bootstrap capacitor for generating a low level of the gate driving signal of the first scan line;
- a second bootstrap capacitor for generating a low level of the gate driving signal of the second scan line;
- and
- a pull down holding module for holding the low level of the gate driving signals of the first scan line and the second scan line;
- wherein, the first clock signal is shifted in ¼ clock period to obtain the second clock signal.
Dependencies are inferred from the claim text.