A level conversion circuit includes a high-potential-side level conversion unit which is connected between a first high-voltage power supply and a first low-voltage power supply, and converts a high-potential-side voltage of an input signal, a low-potential-side level conversion unit which is connected between a second high-voltage power supply with a lower voltage than the first high-voltage power supply and a second low-voltage power supply with a lower voltage than the first low-voltage power supply, and converts a low-potential-side voltage of the input signal, and an output unit to which an output of the high-potential-side level conversion unit and an output of the low-potential-side level conversion unit are input, and which outputs a voltage level of the first high-voltage power supply and a voltage level of the second low-voltage power supply.