Patent ID: 7728501

Claim:
An image display apparatus comprising: an envelope; a first electroconductive member, a second electroconductive member, and a third electroconductive member disposed in the envelope; a spacer disposed between the first electroconductive member and the third electroconductive member and between the second electroconductive member and the third electroconductive member; a circuit for supplying a first electric potential to the first electroconductive member and supplying a second electric potential that is lower than the first electric potential to the second electroconductive member and the third electroconductive member, wherein, when a first sheet resistance between a first region of the spacer to which the first electric potential is supplied from the first electroconductive member and a second region of the spacer to which the electric potential is supplied from the second electroconductive member is defined as ρf [Ω/□], and a second sheet resistance between a third region of the spacer to which the electric potential is supplied from the third electroconductive member and a region located between the first region and the second region is defined as ρr [Ω/□], a condition 1/100<ρr/ρf≦40 is satisfied; and a luminescent member disposed in the envelope.