There is disclosed a display device which is driven by a two-field drive scheme. That is, brightness corresponding to one frame of image is obtained in two scans. The display screen is divided into plural regions. One of the regions is driven by a black insertion method. The other region is driven by a pseudo-normal drive method. In this method, an image based on the same display data is displayed twice. The display data is converted such that the gamma characteristics of the pseudo-normally driven region are substantially equal to the gamma characteristics of the region driven by the black insertion method. If necessary, each individual pixel in the boundary region between the region driven by the black insertion method and the region driven by the pseudo-normal drive method is displayed black or white. The boundary region has a width of at least two pixels.