To reduce EMI and current consumption in internal wiring after display data have been input to a data driver. Display data DN/DP constituted by RSDS signals input to a data driver in a first stage are converted to display data DA constituted by CMOS signals, subjected to primary inversion control according to a data inversion signal INV generated inside, and transferred into internal wiring 31 in a data capturing circuit 30. Then, the display data are subjected to secondary inversion control by a secondary data inversion circuit 33 disposed immediately before data registers 34 according to the data inversion signal INV, and then captured by the data registers 34. Further, chip-to-chip transfer of the display data DA and the data inversion signal INV to the data drivers in second and subsequent stages is performed through the internal wiring 31 and internal wiring 32. Then, as in the data driver in the first stage, the display data DA are captured by the data registers 34.