Appeal 2007-2045
Application 10/204,670
This is an appeal from the Examiner’s final rejection of claims 1-5,
40-48, and 54. Claims 49-53 are also pending in the application, but have
been withdrawn from consideration. We have jurisdiction over the appeal
pursuant to 35 U.S.C. § 6(b).
Appellants’ invention relates to carbon nanotubes for use in field
emission displays. Independent claims 1 and 5 are reproduced below:
1. A carbon nanotube comprising at least one layer of a cylindrical
carbon network film,
wherein the carbon network film has a polycrystal structure which is
divided into a plurality of crystallites in a tube axis direction., and
wherein an end face of the carbon network film is modified such that
field emission efficiency is increased.
5. A display comprising:
an electron source which includes a plurality of carbon nanotubes as a
field emission part; and
electric field applying means for applying an electric field to each
carbon nanotube so as to cause each carbon nanotube to emit electrons,
wherein:
each carbon nanotubes is at least one layer of a cylindrical carbon
network film, and
the carbon network film has a polycrystal structure which is divided
into a plurality of cystallities in a tube axis direction, and
wherein an end face of the carbon network, film is modified such that
field emission efficiency is increased.
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