Patent attributes
To provide an image display apparatus, including first to N-th electron-emitting devices; a spacer; a driving circuit for correcting each of the first to N-th driving signals for driving the first to N-th electron-emitting devices and outputting it; first to N-th light emission areas; in which the driving circuit has a correction circuit; and the correction circuit has a first circuit of calculating a correction value for correcting the driving signal; a second circuit of calculating a representative value by using a plurality of correction values for correcting the driving signal for driving each electron-emitting device of a group consisted of near M pieces of electron-emitting devices including first and second electron-emitting devices; a storage unit for storing the representative value; and a third circuit for correcting a driving signal for driving each electron-emitting device of the group by using the representative value.