Title:
COLD-CATHODE ELECTRON SOURCE AND FIELD-EMISSION DISPLAY
Document Type and Number:
WIPO Patent Application WO/2002/027745
Kind Code:
A1
Abstract:
A cold-cathode electron source having an improved use efficiency of an electron beam and a simple structure. The cold-cathode electron source comprises a gate electrode (4) provided on a substrate (2) through an insulating layer (3) and an emitter (6) extending through the insulating layer (3) and the gate electrode (4) and disposed in an opening of the gate. During the emission of electrons from the emitter (6), the relationships are satisfied: 10 [V/$g(m)m] $m(g) (Va-Vg) / (Ha-Hg) $m(g) Vg / VaVg / Hg [V/$g(m)m] $m(g) VaX10?-4¿X (9.7-1.3 X ln(Hg)) X (1000/Ha)?0.5¿ where Ha [$g(m)m] is the distance between the anode and emitter, Va [V] is the voltage between the anode and emitter, Hg [$g(m)m] the distance between the gate and emitter, and Vg [$g(m)m] is the voltage between the gate and emitter.
Inventors:
Ide, Tetsuya (1-29-17, Harajyuku Totsuka-ku Yokohama-shi, Kanagawa, 245-0063, JP)
Sawahata, Junichi (Rapport Taki 1227, 1141-9 Gosan, Takicho Taki-gun Mie, 519-2157, JP)
Urayama, Masao (4-4-22-403, Hikonari Misato-shi, Saitama, 341-0003, JP)
Sawahata, Junichi (Rapport Taki 1227, 1141-9 Gosan, Takicho Taki-gun Mie, 519-2157, JP)
Urayama, Masao (4-4-22-403, Hikonari Misato-shi, Saitama, 341-0003, JP)
Application Number:
PCT/JP2001/008465
Publication Date:
April 04, 2002
Filing Date:
September 27, 2001
Export Citation:
Assignee:
SHARP KABUSHIKI KAISHA (22-22, Nagaike-cho Abeno-ku Osaka-shi, Osaka, 545-8522, JP)
Ide, Tetsuya (1-29-17, Harajyuku Totsuka-ku Yokohama-shi, Kanagawa, 245-0063, JP)
Sawahata, Junichi (Rapport Taki 1227, 1141-9 Gosan, Takicho Taki-gun Mie, 519-2157, JP)
Urayama, Masao (4-4-22-403, Hikonari Misato-shi, Saitama, 341-0003, JP)
Ide, Tetsuya (1-29-17, Harajyuku Totsuka-ku Yokohama-shi, Kanagawa, 245-0063, JP)
Sawahata, Junichi (Rapport Taki 1227, 1141-9 Gosan, Takicho Taki-gun Mie, 519-2157, JP)
Urayama, Masao (4-4-22-403, Hikonari Misato-shi, Saitama, 341-0003, JP)
International Classes:
H01J1/304; H01J3/02; H01J29/46; H01J29/48; H01J1/30; H01J3/00; H01J29/46; H01J29/48; (IPC1-7): H01J1/304; H01J31/12
Attorney, Agent or Firm:
Hiraki, Yusuke (Toranomon No.5 Mori Building Third Floor, 17-1 Toranomon 1-chome Minato-ku, Tokyo, 105-0001, JP)
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