If the display device involved is a LCD, pixel data from display controller 208 is sent to FPI 209 before being passed on to the LCD. In the preferred embodiment, display controller 1&2 208 comprises a display controller 1 (DC1) that is normally used for a flat panel display (FPD) and a display controller 2 (DC2) that is normally used for a CRT. FPI 209 further processes the data by further adding