RASTER-SCAN GRAPHICAL DISPLAY APPARATUS

摘要

Four independent displays 12 to 15 are driven by an array of Video RAMS 0,0 to 3,3 whose rows provide respective consecutive lines of the raster in cyclic sequence determined by means of a barrel shifter (20). All four displays can then use common data storage and operate using an appropriately sized pixel array e.g. 4 x 4, 8 x 8, for image handling and processing.