An image generating circuit (1342) includes a G data contrast adjusting circuit 1342-2g and a B data contrast adjusting circuit 1342-2b that amplify G and B data on the basis of a luminance indicated by R data out of R, G, and B data. The G data contrast adjusting circuit 1342-2g and the B data contrast adjusting circuit 1342-2b include differential amplifier circuits AMP1 and AMP2 to which G and B data is input variable resistors VR1 and VR2 whose resistance is variable according to R data input in synchronization with G and B data and inverter circuits INV1 and INV2 that are connected to output terminals of the differential amplifier circuits AMP1 and AMP2, and amplify G and B data according to the signal level of the R data, respectively.