A display device includes: a frame rate conversion section performing frame rate conversion through performing a frame interpolation process on a composite picture frame with use of a motion vector, in which the composite picture frame is generated through superimposing an OSD picture, i.e., on-screen display picture, on a picture frame; and a display section performing picture display based on a frame-rate-converted composite picture frame provided from the frame rate conversion section. The frame rate conversion section selectively performs the frame interpolation process to each pixel or to every plural pixels in the composite picture frame based on OSD region information indicating an OSD picture region.