Patent ID: 7687993

Claim:
An image display apparatus in which a pair of substrates are disposed opposite one another such that an internal space is formed therebetween, electrodes and at least two types of phosphor layer are provided between the substrates, and discharge gas is enclosed in the internal space, the image display apparatus displaying an image by applying voltages to the electrodes so as to cause discharges to occur in the internal space, and via the phosphor material, converting ultraviolet light generated as discharges occur into visible light, comprising: the internal space is partitioned by a plurality of barrier ribs in a stripe pattern which form a plurality of grooves, and among the grooves, (a) grooves constituting a first space are closed at one end by auxiliary barrier ribs and connect with one another at an other end and (b) grooves constituting a second space are closed at the other end by auxiliary barrier ribs and connect with one another at the one end such that (i) the internal space is divided into the first space provided with a first phosphor layer and the second space provided with a second phosphor layer and (ii) the grooves constituting the first space connect with one another and the grooves constituting the second space connect with one another, and the discharge gases respectively enclosed in the first and second spaces differ from each other in at least one of composition and pressure.