Disclosed is a display device. A display area includes a first region and a second region having a boundary therebetween, with a boundary region defined around the boundary. Conversions of raw pixel data for respective regions having a format suitable for a second sub-pixel arrangement into converted pixel data having a format suitable for a first sub-pixel arrangement are based on the raw pixel data for the respective regions and additionally on the pixel data corresponding to the boundary region. Also disclosed is a method of driving a display panel.