Appeal No. 1998-0888
Application 08/314,036
First, Appellants argue that Spindt teaches a structure
having a single anode plate 12 and a single emitter plate 13
(Br4) and, so, does not disclose at least two emitter plates.
The Examiner finds that Spindt shows "a display panel (11)
which is made up of a single anode and a plurality of cathodes
(emitter plates)" (FR2). The Examiner provides a little more
detail in the Examiner's Answer and finds that Spindt teaches
"at least two emitter plates coupled to said row and column
drivers (figure 2, item 14 or figure 5, item[s] 31-33)" (EA4)
and "item 13 is the back plate structure that holds the
multiple emitter plates[;] its [sic, it's] not a single
emitter plate as interpreted by Appellant" (EA8). The
Examiner also states that figure 2 shows a cut section of 4 X
10 emitter plates and that figures 3 and 5 show details of the
individual emitter plates of figure 2 (EA5).
It appears that the Examiner interprets the common
bases 14 for each pixel in figures 2 and 13 as emitter plates.
However, bases 14 are not separate plates, but are diffusion
regions in the single plate backing structure 13 (col. 3,
lines 27-33):
The backing structure 13 can be of a semiconductive
material, such as silicon, and the three cathodes of each
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