Patent ID: 7663660

Claim:
An image display system comprising: a plurality N of image display units; an image storing unit storing therein a plurality of pieces of image data; a read unit reading the plurality of pieces of image data from said image storing unit for output; a destination specifying unit specifying an image display unit to be a display destination of each of the plurality of pieces of image data from said read unit; a divided-period setting unit dividing a unit display period of said image display units to N divided periods to correspond to said image display units, respectively; a synthesis unit that synthesizes, for sequential outputs, in each of the divided periods, the image data from said read unit according to the display destination specified by said destination specifying unit in order to multiplex image data to be displayed on each of said image display units; and a separating unit separating, in each of the divided periods of the unit display period, image data outputted from the synthesis unit and outputting the separated image data to the respective image display units corresponding to the divided periods, wherein said read unit has a plurality of read circuits which correspond to the plurality of pieces of image data, respectively, and each read a corresponding piece of image data to output the read niece together with an image validity signal indicating validity/invalidity of the image data.