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Title:
ELECTRON EMISSION ELEMENT, METHOD FOR FABRICATING THE SAME, PHOTOELECTRIC CONVERSION ELEMENT EMPLOYING ELECTRON EMISSION ELEMENT, IMAGING APPARATUS AND FLAT PANEL DISPLAY
Document Type and Number:
WIPO Patent Application WO/2007/119524
Kind Code:
A1
Abstract:
An electron emission element comprising a lower electrode (2), an upper electrode (7), an electron supply layer (4) arranged on the lower electrode (2) side and an insulator layer (6) arranged on the upper electrode (7) side, the both layers being laminated between the lower electrode (2) and the upper electrode (7), and an electron emitting section including an opening region (HP) defined by an edge portion touching the electron supply layer (4) on the inner wall penetrating the insulator layer (6). The electron emitting section includes a carbon area (8) containing carbon, connected to the upper electrode (7) side and touching the electron supply layer (4) in the opening region (HP), and a partially crystallized polycrystalline portion (41) at that part of the electron supply layer (4) touching the carbon area (8). Area of the lower electrode (2) is set to be not smaller than four times that of the opening region (HP), and the lower electrode (2) overlaps the polycrystalline portion (41) so as to include it through the electron supply layer (4).

Inventors:
OKUDA YOSHIYUKI (JP)
NEGISHI NOBUYASU (JP)
SAKEMURA KAZUTO (JP)
NAKADA TOMONARI (JP)
TANAKA RYOTA (JP)
OGASAWARA KIYOHIDE (JP)
YOSHIKAWA TAKAMASA (JP)
WATANABE ATSUSHI (JP)
Application Number:
PCT/JP2007/056375
Publication Date:
October 25, 2007
Filing Date:
March 27, 2007
Export Citation:
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Assignee:
PIONEER CORP (JP)
OKUDA YOSHIYUKI (JP)
NEGISHI NOBUYASU (JP)
SAKEMURA KAZUTO (JP)
NAKADA TOMONARI (JP)
TANAKA RYOTA (JP)
OGASAWARA KIYOHIDE (JP)
YOSHIKAWA TAKAMASA (JP)
WATANABE ATSUSHI (JP)
International Classes:
H01J1/312; H01J9/02; H01J29/04; H01J31/12; H01J31/38
Foreign References:
JP2005512280A2005-04-28
JP2001196017A2001-07-19
Other References:
NOBUYASU NEGISHI ET AL.: "Characterization of an advanced high-efficiency electron emission device", JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY B, vol. 23, no. 2, 6 April 2005 (2005-04-06), pages 682 - 686, XP012079875
Attorney, Agent or Firm:
FUJIMURA, Motohiko (Togeki-Bldg. 1-1, Tsukiji 4-chome, Chuo-k, Tokyo 45, JP)
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