PURPOSE: To enable an image processor to be efficiently accessed and improved in image display performance by arranging graphic parts in different display screen areas on plural storage means by specific graphic parts.

CONSTITUTION: The graphic parts are arranged in the display screen areas on the plural storage means (SRAM(static RAM)103 and DP-RAM(dual port RAM)104) by the specific graphic parts. More concretely, which image data of graphic parts are divided into parts (cell) of specific size and stored in, for example, the 1st storage means (SRAM103) and the display positions of the graphic parts are specified by the cells constituting the graphic parts, graphic parts of a small area are arranged in a display screen area secured on the SRAM103. Graphic parts of a large area, on the other hand, are arranged in a display screen area on the 2nd storage means (DP-RAM104) where the image need not be constituted in a cell form.