Patent ID: 7626325
Filing Date: 2009-12-01
Classification: H01J

Abstract:
1. An image display apparatus comprising: a front substrate which has a plurality of phosphor layers, resistor layers provided between the phosphor layers, a metal-back layer divided into a plurality of metal-back segments covering the phosphor layers and resistor layers at least in part, and spaced apart by gaps Gx in a first direction X intersecting at right angles with a scanning direction and by gaps Gy in a second direction Y identical to the scanning direction, and a voltage-applying means for applying a voltage on the metal-back segments; and a rear substrate which is opposed to the front substrate and on which a plurality of electron-emitting elements are arranged; wherein Rx(100)/Rx(1)<Ry(100)/Ry(1), where Rx(V) is a resistance between any two of the metal-back segments on the sides of one of the gaps Gx, respectively, which is a function of a voltage V, and Ry(V) is a resistance between any two of the metal-back segments on the sides of one of the gaps Gy, respectively, which is a function of the voltage V.