Appeal No. 96-1249
Application 08/270,215
V, 400 Hz was applied to both terminals and lighting [i.e.,
light emission by the phosphor] was continued for 15 hours in
an atmosphere at 60EC and 90% RH," after which "[d]egradation
of the transparent electroconductive layer (discoloration) was
then checked" (col. 17, lines 1-14). The results, shown in
Table 6, reveal that some of the examples, including the
palladium example (Example 10), experienced no discoloration
of the transparent electroconductive layer, while the
remaining examples experienced only slight discoloration
(col. 17, lines 21-41).
We agree with appellants (Brief at 7-9) that the artisan
would have understood Mikoshiba as a whole to be teaching that
a metal or metal oxide film can be used to prevent the
transparent electroconductive layer from being degraded by the
conditions encountered in an electroluminescent display,
wherein the transparent electroconductive layer is used to
apply a 100-volt, 400 Hz current to a phosphor layer. We also
agree that the artisan would not have expected these or
similar conditions to be encountered in a transparent touch
panel and thus would not have understood Mikoshiba to be
suggesting the use of a metal or metal oxide layer for that
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