Title:
ELECTRON EMITTING DEVICE AND ELECTRON EMITTING METHOD
Document Type and Number:
WIPO Patent Application WO/2006/041217
Kind Code:
A1
Abstract:
An electron emitting device is provided with an electron emitting element composed of a lower electrode, an emitter part made of a dielectric material and a plurality of upper electrodes having fine through holes; and a drive voltage applying circuit including a circuit for applying a drive voltage (Vin) between the lower electrode and the upper electrode. The drive voltage applying circuit sets an element voltage (Vka), which is a potential of the upper electrode to a potential of the lower electrode, at a negative voltage, in an electron accumulating period (Td), to accumulate electrons in the emitter part. The drive voltage applying circuit applies a drive voltage between the lower electrode and the upper electrode to set the element voltage (Vka) at a prescribed positive voltage in an electron emission period (Th) to emit the electrons from the emitter part. Furthermore, the drive voltage applying circuit increases the positive voltage in the electron emission period (Th) stepwise, and the electrons accumulated in the emitter part are emitted separately in a plurality of times.
Inventors:
Ohwada, Iwao c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Akao, Takayoshi c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Goto, Naoki c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Sugiyama, Tomohiko c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Akao, Takayoshi c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Goto, Naoki c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Sugiyama, Tomohiko c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Application Number:
PCT/JP2005/019346
Publication Date:
April 20, 2006
Filing Date:
October 14, 2005
Export Citation:
Assignee:
NGK INSULATORS, LTD. (2-56, Suda-cho Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Ohwada, Iwao c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Akao, Takayoshi c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Goto, Naoki c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Sugiyama, Tomohiko c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Ohwada, Iwao c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Akao, Takayoshi c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Goto, Naoki c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
Sugiyama, Tomohiko c/o NGK Insulators Ltd. (2-56, Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
International Classes:
H01J1/312; G09G3/20; G09G3/22; H01J29/04; H01J31/12
Attorney, Agent or Firm:
Prospec, Patent Firm (12th Floor, NAGOYA-KS Building 1-18, Taiko 3-chome, Nakamura-k, Nagoya-shi Aichi, 453-0801, JP)
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