Patent ID: 7116291

Claim:
An image display comprising: a display device including, a first plate having, a plurality of electron-emitter elements each having a structure comprised of a base electrode, an insulating layer and a top electrode stacked on one another in this order, said electron-emitter element emitting electrons from the surface of the top electrode when a voltage of positive polarity is applied to the top electrode; a plurality of first electrodes extending in a row (or column) direction for respectively applying driving voltages to the base electrodes of the electron-emitter elements lying in the row (or column) direction, of said plurality of electron-emitter elements, a part of each of the first electrodes forming said base electrode; and a plurality of second electrodes extending in a column (or row) direction for respectively applying driving voltages to the top electrodes of the electron-emitter elements lying in the column (or row) direction, of said plurality of electron-emitter elements; a frame component; and a second plate having phosphors; wherein a space surrounded by said first plate, said frame component and said second plate is brought into vacuum; first driving means for supplying driving voltages to said respective first electrodes; and second driving means for supplying driving voltages to said respective second electrodes; wherein said first driving means sets the first electrode held in a non-selected state to a state of having an impedance higher than that of the first electrode held in a selected state, and wherein said second driving means sets the second electrode held in a non-selected state to a state of having an impedance higher than that of the second electrode held in a selected state.