Patent ID: 7995046
Filing Date: 2011-08-09
Classification: G09G,H03K

Abstract:
1. A display driving apparatus outputting a driving signal to a display comprising: a high-voltage power supply terminal; an output terminal; a high-side output transistor connected between the high-voltage power supply terminal and the output terminal; a reference power supply terminal; a low-side output transistor connected between the output terminal and the reference power supply terminal, and having a gate; a buffer circuit including two MOS transistors connected in series; and a discharge element discharging charge stored in the gate of the low-side output transistor, the discharge element being configured to discharge the charge stored in the gate of the low-side output transistor irrespective of the on/off states of the two MOS transistors; wherein the gate of the low-side output transistor is connected to a connecting point of the two MOS transistors and the discharge element.