Title:
IMAGE DISPLAY UNIT
Document Type and Number:
WIPO Patent Application WO/2004/008474
Kind Code:
A1
Abstract:
An image display unit comprising a high-resistance gap section disposed between a grounding section and the outer peripheral edge of a metallized layer so as to surround the outer peripheral edge, the high-resistance gap section having a surface roughness of 1.0-15.0 µm and a high-resistance coating layer with a surface resistivity of 1 × 109 ˜ 1 × 1015 &ohm /&square . The high-resistance gap section can be formed of a plurality of regions so disposed that their surface roughness or surface resistivity sequentially increases from the inner side toward the outer side. Accordingly, creeping discharge from the outer peripheral edge of a metallized layer is restricted to prevent the destruction or deterioration of an electron emission element and a fluorescent surface.
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Inventors:
YOSHII MASAYUKI (JP)
ITO TAKEO (JP)
TANAKA HAJIME (JP)
ITO TAKEO (JP)
TANAKA HAJIME (JP)
Application Number:
PCT/JP2003/008743
Publication Date:
January 22, 2004
Filing Date:
July 10, 2003
Export Citation:
Assignee:
TOSHIBA KK (JP)
YOSHII MASAYUKI (JP)
ITO TAKEO (JP)
TANAKA HAJIME (JP)
YOSHII MASAYUKI (JP)
ITO TAKEO (JP)
TANAKA HAJIME (JP)
International Classes:
H01J29/08; H01J29/28; H01J31/12; H01J29/86; (IPC1-7): H01J31/12; H01J29/28
Foreign References:
| US20020047574A1 | 2002-04-25 | |||
| JP2000311632A | 2000-11-07 | |||
| US20020047661A1 | 2002-04-25 |
Attorney, Agent or Firm:
Suyama, Saichi (1 Kandata-cho 2-chom, Chiyoda-ku Tokyo, JP)
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