ELECTRON-EMITTING MATERIAL, ITS PRODUCING METHOD, ELECTRON-EMITTING DEVICE USING SAME, AND IMAGE DRAWING DEVICE

Title:

ELECTRON-EMITTING MATERIAL, ITS PRODUCING METHOD, ELECTRON-EMITTING DEVICE USING SAME, AND IMAGE DRAWING DEVICE

Document Type and Number:

WIPO Patent Application WO/2004/095494

Kind Code:

A1

Abstract:

An electron-emitting material having a field-emission start voltage or work function smaller than conventional ones. The material comprises a substrate (102) and a graphite sheet (101) laminated on the substrate (102). (1) The graphite sheet (101) has a structure in which graphenes each composed of a carbon hexagonal network surface are layered, (2) the graphemes are so stacked that the c-axis direction of each grapheme is substantially perpendicular to the surface of the substrate (102), (3) the graphite sheets (101) is so laminated on the substrate (102) that the c-axis direction of each grapheme is substantially perpendicular to the surface of the substrate (102), and (4) the graphite sheet (101) each contains an element other than carbon as a second element.

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Inventors:

Shibata, Motoshi (6-708-1-107, Gakuendaiwa-cho Nara-sh, Nara 41, 63100, JP)
Deguchi, Masahiro (20-11-502, Higashinakaburi 1-chome Hirakata-sh, Osaka 93, 57300, JP)
Taomoto, Akira (2-31, Takigikuwanoki Kyotanabe-sh, Kyoto 41, 61003, JP)
Ozaki, Toyokazu (1-8-3-202, Tomiomotomachi Nara-sh, Nara 78, 63100, JP)

Application Number:

PCT/JP2004/005703

Publication Date:

November 04, 2004

Filing Date:

April 21, 2004

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC INDUSTRIAL CO. LTD. (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 57185, JP)
Shibata, Motoshi (6-708-1-107, Gakuendaiwa-cho Nara-sh, Nara 41, 63100, JP)
Deguchi, Masahiro (20-11-502, Higashinakaburi 1-chome Hirakata-sh, Osaka 93, 57300, JP)
Taomoto, Akira (2-31, Takigikuwanoki Kyotanabe-sh, Kyoto 41, 61003, JP)
Ozaki, Toyokazu (1-8-3-202, Tomiomotomachi Nara-sh, Nara 78, 63100, JP)

International Classes:

H01J1/304; H01J9/02; H01J1/30; H01J9/02; (IPC1-7): H01J1/304; H01J9/02; H01J29/04; H01J31/12

Attorney, Agent or Firm:

Saegusa, Eiji (Kitahama TNK Building 1-7-1, Doshomachi Chuo-ku, Osaka-sh, Osaka 45, 54100, JP)

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