Disclosed is an image converter circuit which is capable of being to be applied to a display device having an arbitrary number of pixels, and is capable of reducing image deterioration in panoramic display. The image converter circuit comprises: a read-control section that reads image data from an image memory in accordance with read-designating information; a data interpolating section that interpolates pixels using the image data read out from the image memory, depending upon magnification-designating information, and outputs enlarged and interpolated data; and a magnification setting section that generates the read-designating information and the corresponding magnification-designating information. The magnification setting section vertically divides the image data into a plurality of areas such that a difference in a number of pixels between the areas is within a predetermined range.