Electron emitting element

A technology of electron emission and electron injection, which is applied in the direction of electrical components, discharge tube/lamp components, circuits, etc., can solve the problems of fluctuations in electron emission characteristics, small electric field concentration, and small emitted electron energy, so as to improve linear transmission performance, reduce power consumption, and reduce intermodulation distortion
CN1898763AInactive Publication Date: 2007-01-17NGK INSULATORS LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NGK INSULATORS LTD
Publication Date
2007-01-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

An electron emitting element (10A) is provided with an emitter part (12) composed of a dielectric material, and an upper electrode (14) and a lower electrode (16) whereupon a driving voltage (Va) is applied for electron emission. The upper electrode (14) is formed on an upper plane of the emitter part (12), and the lower electrode (16) is formed on a lower plane of the emitter part (12). The upper electrode (14) is provided with a plurality of penetrating parts (20) from which the emitter part (12) is exposed. In the upper electrode (14), a plane facing the emitter part (12) at a circumference part (26) of the penetrating part (20) is separated from the emitter part (12).
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Description

technical field

[0001] The present invention relates to an electron emission element having a first electrode and a second electrode formed in an emitter portion. Background technique

[0002] Currently, an electron emission element has a cathode electrode and an anode electrode, and is used in various applications such as a field emission display (FED) or a backlight. When used in an FED, a plurality of electron emission elements are arranged two-dimensionally, and a plurality of phosphors are respectively arranged to face these electron emission elements at predetermined intervals.

[0003] Conventional examples of such electron emission elements include, for example, Patent Documents 1 to 5, but they have the following problems: because none of them use a dielectric in the emitter portion, forming or micromachining is required between opposing electrodes, and for electron emission High voltage must be applied for emission, and the panel manufacturing process is complicat...

Claims

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