STRUCTURE OF METAL OXIDE - ASAHI CHEMICAL IND

Title:

STRUCTURE OF METAL OXIDE

Document Type and Number:

Japanese Patent JP2000067740

Kind Code:

A

Abstract:

To provide a structure for increasing electron emission current value in a low electric field, particularly a structure useful as a cold cathode element.

In this structure, a part of or entire surface of a metal oxide made substrate material having projections is covered with conductive material, and the tips of the projections are covered with one or more kinds of electron emission material. Preferably the structure has the projections with density of 0.01-10,000 in number per 10 μm×10 μm in area on the substrate material. In particular, this structure is optimal for a cold cathode element application. This structure can increase electron emission current value in a low electric field, and particularly is preferably used for the cold cathode element application.

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Inventors:

SAITO HIDETOSHI
UEDA YOSHITOMO
NAKAZAWA KEIICHI
KINOSHITA HIDEO

Application Number:

JP25469298A

Publication Date:

March 03, 2000

Filing Date:

August 26, 1998

Export Citation:

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Assignee:

ASAHI CHEMICAL IND
SAITO HIDETOSHI

International Classes:

B32B3/30; B32B18/00; H01J1/304; H01J9/02; (IPC1-7): H01J1/304; B32B3/30; B32B18/00; H01J9/02

Attorney, Agent or Firm:

Takeshi Shimizu (3 others)

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