A cathode plate of a field emission display comprising a cathode substrate of
the
field emission display and a plurality of linear isolation barriers each having
a length and a thickness and attached to a top surface of the cathode substrate.
The plurality of linear isolation barriers are spaced at intervals such that electron
emitter lines can be formed between respective ones of the plurality of linear
isolation barriers. In one embodiment, the linear isolation barriers comprise ribs
attached to the top surface of the cathode substrate. In some embodiments, the
linear isolation barriers are adapted to contact gate wires of a gate frame of
the field emission display positioned above the cathode substrate to dampen driving
frequency vibrations in the gate wires.