Patent ID: 7733160

Claim:
A power supply circuit that outputs a boosted voltage, the power supply circuit comprising: a voltage booster circuit that generates a boosted voltage by boosting a second voltage with respect to a first voltage; and a limiter circuit that limits a potential of the boosted voltage, the limiter circuit discharging a charge to or charging a charge from a power supply line so that the boosted voltage becomes a given target voltage, the second voltage being supplied to the power supply line, the power supply circuit further including a regulator that regulates a potential of a given input voltage, a drive voltage of an electro-optical device being generated based on the boosted voltage, the power supply circuit outputting a voltage obtained by limiting the potential of the boosted voltage using the limiter circuit as the boosted voltage when the electro-optical device is driven in a high-load display mode, and the power supply circuit outputting a voltage obtained by boosting an output voltage from the regulator using the voltage booster circuit as the boosted voltage without limiting the potential of the boosted voltage using the limiter circuit when the electro-optical device is driven in a low-load display mode.