Image display device that includes a metal back layer with gaps

Details Image display device that includes a metal back layer with gaps Image display device that includes a metal back layer with gaps

2007-05-22

2007-05-22

Guharay, Karabi (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S495000, C313S309000, C313S310000, C315S169100, C315S169300

Reexamination Certificate

active

11403863

ABSTRACT:
A front substrate of an image display device has a phosphor screen and a metal back layer superposed on the phosphor screen. A plurality of electron emitting elements which emit electrons toward the phosphor screen are located on a rear substrate opposed to the front substrate. The metal back layer has a region which corresponds to the phosphor screen and is divided by gaps g1in a first direction and gaps g2in a second direction perpendicular to the first direction such that there are relations g1<g2, and ρg1<ρg2, where ρg1and ρg2are sheet resistances at the gaps g1and g2, respectively.

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