Appeal No. 1998-0923
Application No. 08/514,718
A cathode substrate is mounted horizontally through a lead
frame on support members, the lead frame having lead wires
being arranged on top of the cathode substrate for downwardly
holding the substrate against the support members. Appellants
assert at page 8 of the specification that this structural
arrangement permits precise alignment between the anode and
cathode substrates.
Claim 1 is illustrative of the invention and reads as
follows:
1. A fluorescent display device comprising:
an envelope formed by integrally attaching an anode
substrate and a casing to each other through a sealing
layer;
an anode formed on said anode substrate in said
envelope and having a phosphor layer deposited
thereon;
support members fixed on said sealing layer forming a
bridge across said envelope;
a cathode substrate placed horizontally on said
support members, said cathode substrate being supported
in said envelope by means of said support members in a
manner to face said anode at a predetermined interval
defined
therebetween;
a field emission cathode formed on said cathode
substrate; and
2
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