A pixel circuit includes a light-emitting element that has a luminance corresponding to a level of a driving signal; and a signal generating circuit that generates a driving signal indicating the luminance of the light-emitting element on the basis of a data signal. The signal generating circuit includes a driving transistor that generates a driving signal by supplying a voltage corresponding to a data signal to its gate electrode, and a time constant circuit that rounds a waveform of the driving signal supplied from the driving transistor to the light-emitting element.