An integrated circuit device for a liquid discharge head that has a first driving element , a second driving element , a third driving element , and a fourth driving element , the integrated circuit device comprising: a first switch circuit (TG) that receives a driving signal (VOUT) and switches between output and non-output of the driving signal to the first driving element; a second switch circuit (TG) that receives the driving signal (VOUT) and switches between output and non-output of the driving signal to the second driving element; a third switch circuit (TG) that receives the driving signal (VOUT) and switches between output and non-output of the driving signal to the third driving element; a fourth switch circuit (TG) that receives the driving signal (VOUT) and switches between output and non-output of the driving signal to the fourth driving element; and a switch control circuit that receives a discharge control signal (DI) including first data, second data, third data, and fourth data and controls whether to cause each of the first switch circuit, the second switch circuit, the third switch circuit, and the fourth switch circuit to output the driving signal; characterised in that the switch control circuit has a fifth switch circuit that receives the first data and the second data, a sixth switch circuit that receives the first data and the third data, and a seventh switch circuit that receives the first data and the fourth data, the fifth switch circuit switches between output of the first data to the second switch circuit and output of the second data to the second switch circuit, the sixth switch circuit switches between output of the first data to the third switch circuit and output of the third data to the third switch circuit, and the seventh switch circuit switches between output of the first data to the fourth switch circuit and output of the fourth data to the fourth switch circuit. a first switch circuit (TG) that receives a driving signal (VOUT) and switches between output and non-output of the driving signal to the first driving element; a second switch circuit (TG) that receives the driving signal (VOUT) and switches between output and non-output of the driving signal to the second driving element; a third switch circuit (TG) that receives the driving signal (VOUT) and switches between output and non-output of the driving signal to the third driving element; a fourth switch circuit (TG) that receives the driving signal (VOUT) and switches between output and non-output of the driving signal to the fourth driving element; and a switch control circuit that receives a discharge control signal (DI) including first data, second data, third data, and fourth data and controls whether to cause each of the first switch circuit, the second switch circuit, the third switch circuit, and the fourth switch circuit to output the driving signal; the switch control circuit has a fifth switch circuit that receives the first data and the second data, a sixth switch circuit that receives the first data and the third data, and a seventh switch circuit that receives the first data and the fourth data, a fifth switch circuit that receives the first data and the second data, a sixth switch circuit that receives the first data and the third data, and a seventh switch circuit that receives the first data and the fourth data, the fifth switch circuit switches between output of the first data to the second switch circuit and output of the second data to the second switch circuit, the sixth switch circuit switches between output of the first data to the third switch circuit and output of the third data to the third switch circuit, and the seventh switch circuit switches between output of the first data to the fourth switch circuit and output of the fourth data to the fourth switch circuit. <EOS>