A driver includes a first terminal group and a second terminal group, a control circuit for outputting a first pulse width signal group including a plurality of pulse width signals corresponding to a plurality of gray levels, and a second pulse width signal group which is different in correspondence between gray levels and pulse widths from the first pulse width signal group, a first drive circuit for outputting a first segment drive signal group based on pulse width signals selected from the first pulse width signal group in accordance with gradation data, to a first terminal group, and a second drive circuit for outputting a second segment drive signal group based on pulse width signals selected from the second pulse width signal group in accordance with the gradation data, to a second terminal group.