Title:
電子放出素子、電子放出装置、帯電装置、画像形成装置、電子線硬化装置、自発光デバイス、画像表示装置、送風装置、冷却装置
Document Type and Number:
Japanese Patent JP4732534
Kind Code:
B2
Abstract:
According to an electron emitting element of the present invention, an electron acceleration layer sandwiched between an electrode substrate and a thin-film electrode contains (i) insulating fine particles and (ii) at least one of (a) conductive fine particles having an average particle diameter smaller than an average particle diameter of the insulating fine particles and (b) a basic dispersant. The electron acceleration layer has a surface roughness of 0.2 μm or less in centerline average roughness (Ra). The thin-film electrode has a film thickness of 100 nm or less. As such, according to the electron emitting element of the present invention, it is possible to reduce the thickness of the thin-film electrode to an appropriate thickness. Accordingly, it is possible to increase electron emission.
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Inventors:
Yasuro Imura
Hiroyuki Hirakawa
Nagaoka Aya
Tadashi Iwamatsu
Hiroyuki Hirakawa
Nagaoka Aya
Tadashi Iwamatsu
Application Number:
JP2009121456A
Publication Date:
July 27, 2011
Filing Date:
May 19, 2009
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H01J1/312; G03G15/02; G21K1/00; G21K5/04; H01J31/12; H01J63/06
Domestic Patent References:
| JP1298623A | ||||
| JP8315722A | ||||
| JP11297190A | ||||
| JP2001332168A | ||||
| JP2002279892A | ||||
| JP2005209396A | ||||
| JP2004327084A | ||||
| JP2005326080A | ||||
| JP2009146891A |
Foreign References:
| WO2009066723A1 |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office