Title:
ELECTRON EMISSION FILM AND ELECTRIC FIELD ELECTRON EMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2003/012817
Kind Code:
A1
Abstract:
An electron emission film capable of enhancing or suppressing electron emitting characteristics at part of an electron emitting surface, and an electric field electron emission device. Many single−wall carbon nanotubes each having a slender crystal structure are arranged at the center of a CNT film (13) in such a posture as to project almost vertically with respect to the film surface. That is, a fiber structure at a specific surface (raised surface (14)) is oriented vertically to promote electron emission, or a fiber structure is made flat by an action of surface tension to suppress electron emission from a specific surface. For example, the edge portion of a CNT film, which is an area from which electrons are emitted curvedly, is rendered a flat−hair surface (15).
Inventors:
KONUMA KAZUO (JP)
Application Number:
PCT/JP2002/007801
Publication Date:
February 13, 2003
Filing Date:
July 31, 2002
Export Citation:
Assignee:
NEC CORP (JP)
KONUMA KAZUO (JP)
KONUMA KAZUO (JP)
International Classes:
H01J29/04; H01J1/304; H01J31/12; (IPC1-7): H01J1/304
Foreign References:
| JP2001118488A | 2001-04-27 | |||
| JPH08236012A | 1996-09-13 | |||
| JP2000156147A | 2000-06-06 |
Attorney, Agent or Firm:
Maruyama, Takao c/o Maruyama, Patent Office (SAM Build. 3floor 38-23, Higashi-Ikebukuro 2-chom, Toshima-ku Tokyo, JP)
Download PDF:
Previous Patent: MOBILE MINIATURE X-RAY SOURCE
Next Patent: ALTERNATING CURRENT PLASMA PANEL AND METHOD FOR CONTROLLING SAID PANEL
Next Patent: ALTERNATING CURRENT PLASMA PANEL AND METHOD FOR CONTROLLING SAID PANEL