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Light source

A light source and source technology, applied in the field of light sources, can solve the problems of unstable electron emission and lack of practicability, and achieve the effect of improving straightness and reducing crosstalk

Inactive Publication Date: 2006-11-22
NGK INSULATORS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, electron emission is unstable, and the number of electron emission is as high as tens of thousands of times, and there is a problem that it is not practical when used as a light source, for example.

Method used

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Examples

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Embodiment Construction

[0141] Below, refer to Figure 1 to Figure 85 Examples of the light source of the present invention will be described.

[0142] Such as figure 1 As shown, the light source 10A of the first embodiment has a light emitting portion 14A in which a plurality of electron emitting elements 12A are arranged two-dimensionally, and a driving circuit 16A for applying a driving voltage Va to each electron emitting element 12A of the light emitting portion 14A.

[0143] The drive circuit 16A applies a drive voltage Va to the first electrode (for example, upper electrode) 18 and the first electrode of each electron emission element 12A based on a control signal Sc from the outside (a light-on / off switch, etc.) indicating light-on / off. The second electrode (lower electrode) 20 controls the driving of each electron emission element 12A. A preferred example of the drive circuit 16A will be described later.

[0144] Such as figure 1 As shown, each electron emission element 12A has: a plate-...

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Abstract

The invention discloses a light source, which is characterized by the following: producing high concentration electric field; making electron launch high-output high-efficient, low-voltage driving; possessing back glass substrate (200) and front glass substrate (202) to match the positive plane of back glass substrate (200); coating fluorophor on one board plane of front glass substrate (202); arranging two-dimensional multi-electron launching element (12B) on the back glass substrate (200); sealing gas (Hg or Xe) (232) in the space (230) between back glass substrate (200) and front glass substrate (202).

Description

technical field [0001] The present invention relates to a light source (including a surface light source) using an electron emission element having an upper electrode and a lower electrode formed in an emission portion. Background technique [0002] Recently, an electron emission element having a driving electrode and a common electrode is used in various applications such as a field emission display (FED) and 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 at predetermined intervals with respect to these electron emission elements. [0003] As conventional examples of such electron emission elements, there are, for example, Patent Documents 1 to 5, but since none of them use a dielectric for the emission portion, it is necessary to perform foam processing or microfabrication between the facing electrodes, or to emit electrons. It is necessary to apply high vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/04G02F1/1335H01J1/30H01J63/00
Inventor 武内幸久七泷努大和田岩赤尾隆嘉
Owner NGK INSULATORS LTD
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