| 摘要 |
A display driving device outputting a driving signal to a display includes 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, a buffer circuit including two MOS transistors connected in series, and a discharge element discharging charge stored in a gate of the low-side output transistor, wherein the gate of the low-side output transistor is connected to a connecting point of the two MOS transistors and the discharge element. Thus, even if electrostatic discharge is repeatedly applied to the output terminal by a positive charge as against the ground potential in the display driving apparatus, the low-side output transistor can be prevented from being damaged without charge stored in the gate of the low-side output transistor.
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