Title:
ELECTRON EMITTING ELEMENT, ELECTRON EMITTING DEVICE, CHARGING DEVICE, IMAGE FORMING DEVICE, ELECTRON BEAM CURING DEVICE, SELF-LUMINOUS DEVICE, IMAGE DISPLAY DEVICE, BLOWER, COOLING DEVICE
Document Type and Number:
Japanese Patent JP2010272256
Kind Code:
A
Abstract:
To provide an electron emitting element capable of improving an amount of electron emission since a thin electrode can be thinned down to a moderate thickness.
This electron emitting element 1 includes an electron accelerating layer 4 between an electrode substrate 2 and a thin film electrode 3, and the electron accelerating layer 4 contains an insulator particulate 5 and at least either one of a conductive particulate 6 having an average particle diameter smaller than that of the insulator particulate 5 or a basic dispersant 60. The surface roughness of the electron accelerating layer 4 is not more than 0.2 μm in centerline average roughness (Ra), and the layer thickness of the thin electrode 3 is not more than 100 nm.
Inventors:
IMURA YASURO
HIRAKAWA HIROYUKI
NAGAOKA AYAE
IWAMATSU TADASHI
HIRAKAWA HIROYUKI
NAGAOKA AYAE
IWAMATSU TADASHI
Application Number:
JP2009121456A
Publication Date:
December 02, 2010
Filing Date:
May 19, 2009
Export Citation:
Assignee:
SHARP KK
International Classes:
H01J1/312; G03G15/02; G21K1/00; G21K5/04; H01J31/12; H01J63/06
Domestic Patent References:
| JPH01298623A | 1989-12-01 | |||
| JPH08315722A | 1996-11-29 | |||
| JPH11297190A | 1999-10-29 | |||
| JP2001332168A | 2001-11-30 | |||
| JP2002279892A | 2002-09-27 | |||
| JP2005209396A | 2005-08-04 | |||
| JP2004327084A | 2004-11-18 | |||
| JP2005326080A | 2005-11-24 | |||
| JP2009146891A | 2009-07-02 |
Foreign References:
| WO2009066723A1 | 2009-05-28 |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office