| 摘要 |
A gate driving device comprises a control circuit, a shift register circuit, a level shifter, a buffer block and a current overdrive protection device. The control circuit receives and outputs the logic control signals. The shift register circuit receives the logic control signals and sequentially outputs N horizontal low-voltage pulse signals from the first to Nth horizontal lines. The level shifter receives and transforms the horizontal low-voltage pulse signals into positive/negative high-voltage signals. The buffer block receives the horizontal positive/negative high-voltage signals and buffers the driving of the output level device. The current overdrive protection device receives the logic control signal and the horizontal low-voltage pulse signals. The current overdrive protection device, while being properly triggered, outputs the reset signal to prevent the sudden current spike. Accordingly, the damage of the gate driving device is avoided.
|
