Image display and method of driving image display

A driving method of an image display comprising:

• providing an image display having:
• 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;
• setting 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
• setting 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.

An image display comprising:

• a display device including,
• a first plate having,
• a plurality of thin-film electron emitters each having a base electrode and a top electrode, said each thin-film electron emitter 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 thin-film electron emitters lying in the row (or column) direction, of said plurality of thin-film electron emitters, 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 thin-film electron emitters lying in the column (or row) direction, of said plurality of thin-film electron emitters;
• 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.